fix: handle block timeout = 0

.github/workflows/code-analysis.yml

@@ -58,6 +58,9 @@ jobs:
           cache: true # caching and restoring go modules and build outputs.
       - run: echo "GOVERSION=$(go version)" >> $GITHUB_ENV
 
+      - name: Touch test result file
+        run: echo "" > test_output.json
+
       - name: Build
         run: go build -v ./...
 

cmd/cmd_run.go

@@ -17,6 +17,7 @@ import (
 	"github.com/gaze-network/indexer-network/common/errs"
 	"github.com/gaze-network/indexer-network/core/indexer"
 	"github.com/gaze-network/indexer-network/internal/config"
+	"github.com/gaze-network/indexer-network/modules/nodesale"
 	"github.com/gaze-network/indexer-network/modules/runes"
 	"github.com/gaze-network/indexer-network/pkg/automaxprocs"
 	"github.com/gaze-network/indexer-network/pkg/logger"
@@ -39,6 +40,7 @@ import (
 // Register Modules
 var Modules = do.Package(
 	do.LazyNamed("runes", runes.New),
+	do.LazyNamed("nodesale", nodesale.New),
 )
 
 func NewRunCommand() *cobra.Command {

cmd/cmd_version.go

@@ -6,13 +6,15 @@ import (
 	"github.com/cockroachdb/errors"
 	"github.com/gaze-network/indexer-network/common/errs"
 	"github.com/gaze-network/indexer-network/core/constants"
+	"github.com/gaze-network/indexer-network/modules/nodesale"
 	"github.com/gaze-network/indexer-network/modules/runes"
 	"github.com/spf13/cobra"
 )
 
 var versions = map[string]string{
-	"":      constants.Version,
-	"runes": runes.Version,
+	"":         constants.Version,
+	"runes":    runes.Version,
+	"nodesale": nodesale.Version,
 }
 
 type versionCmdOptions struct {

config.example.yaml

@@ -47,3 +47,11 @@ modules:
       password: "password"
       db_name: "postgres"
       # url: "postgres://postgres:password@localhost:5432/postgres?sslmode=prefer" # [Optional] This will override other database credentials above.
+  nodesale:
+    postgres:
+      host: "localhost"
+      port: 5432
+      user: "postgres"
+      password: "P@ssw0rd"
+      db_name: "postgres"
+    last_block_default: 400

go.mod

@@ -25,12 +25,15 @@ require (
 	github.com/valyala/fasthttp v1.51.0
 	go.uber.org/automaxprocs v1.5.3
 	golang.org/x/sync v0.7.0
+	google.golang.org/protobuf v1.33.0
 )
 
+require github.com/stretchr/objx v0.5.2 // indirect
+
 require (
 	github.com/andybalholm/brotli v1.0.5 // indirect
 	github.com/bitonicnl/verify-signed-message v0.7.1
-	github.com/btcsuite/btcd/btcec/v2 v2.3.3 // indirect
+	github.com/btcsuite/btcd/btcec/v2 v2.3.3
 	github.com/btcsuite/btclog v0.0.0-20170628155309-84c8d2346e9f // indirect
 	github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd // indirect
 	github.com/btcsuite/websocket v0.0.0-20150119174127-31079b680792 // indirect
@@ -38,7 +41,7 @@ require (
 	github.com/cockroachdb/redact v1.1.5 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/decred/dcrd/crypto/blake256 v1.0.1 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.3.0
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
 	github.com/getsentry/sentry-go v0.18.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect

go.sum

@@ -221,6 +221,8 @@ github.com/spf13/viper v1.18.2/go.mod h1:EKmWIqdnk5lOcmR72yw6hS+8OPYcwD0jteitLMV
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -310,6 +312,8 @@ google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQ
 google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

internal/config/config.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/cockroachdb/errors"
 	"github.com/gaze-network/indexer-network/common"
+	nodesaleconfig "github.com/gaze-network/indexer-network/modules/nodesale/config"
 	runesconfig "github.com/gaze-network/indexer-network/modules/runes/config"
 	"github.com/gaze-network/indexer-network/pkg/logger"
 	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
@@ -61,7 +62,8 @@ type BitcoinNodeClient struct {
 }
 
 type Modules struct {
-	Runes runesconfig.Config `mapstructure:"runes"`
+	Runes    runesconfig.Config    `mapstructure:"runes"`
+	NodeSale nodesaleconfig.Config `mapstructure:"nodesale"`
 }
 
 type HTTPServerConfig struct {

modules/nodesale/api/httphandler/deploy.go

@@ -0,0 +1,99 @@
+package httphandler
+
+import (
+	"fmt"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"github.com/gofiber/fiber/v2"
+	"google.golang.org/protobuf/encoding/protojson"
+)
+
+type deployRequest struct {
+	DeployID string `params:"deployId"`
+}
+
+type tierResponse struct {
+	PriceSat      uint32 `json:"priceSat"`
+	Limit         uint32 `json:"limit"`
+	MaxPerAddress uint32 `json:"maxPerAddress"`
+	Sold          int64  `json:"sold"`
+}
+
+type deployResponse struct {
+	Id              string         `json:"id"`
+	Name            string         `json:"name"`
+	StartsAt        int64          `json:"startsAt"`
+	EndsAt          int64          `json:"endsAt"`
+	Tiers           []tierResponse `json:"tiers"`
+	SellerPublicKey string         `json:"sellerPublicKey"`
+	MaxPerAddress   uint32         `json:"maxPerAddress"`
+	DeployTxHash    string         `json:"deployTxHash"`
+}
+
+func (h *handler) deployHandler(ctx *fiber.Ctx) error {
+	var request deployRequest
+	err := ctx.ParamsParser(&request)
+	if err != nil {
+		return errors.Wrap(err, "cannot parse param")
+	}
+	var blockHeight uint64
+	var txIndex uint32
+	count, err := fmt.Sscanf(request.DeployID, "%d-%d", &blockHeight, &txIndex)
+	if count != 2 || err != nil {
+		return errs.NewPublicError("Invalid deploy ID")
+	}
+	deploys, err := h.nodeSaleDg.GetNodeSale(ctx.UserContext(), datagateway.GetNodeSaleParams{
+		BlockHeight: blockHeight,
+		TxIndex:     txIndex,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Cannot get NodeSale from db")
+	}
+	if len(deploys) < 1 {
+		return errs.NewPublicError("NodeSale not found")
+	}
+
+	deploy := deploys[0]
+
+	nodeCount, err := h.nodeSaleDg.GetNodeCountByTierIndex(ctx.UserContext(), datagateway.GetNodeCountByTierIndexParams{
+		SaleBlock:   deploy.BlockHeight,
+		SaleTxIndex: deploy.TxIndex,
+		FromTier:    0,
+		ToTier:      uint32(len(deploy.Tiers) - 1),
+	})
+	if err != nil {
+		return errors.Wrap(err, "Cannot get node count from db")
+	}
+
+	tiers := make([]protobuf.Tier, len(deploy.Tiers))
+	tierResponses := make([]tierResponse, len(deploy.Tiers))
+	for i, tierJson := range deploy.Tiers {
+		tier := &tiers[i]
+		err := protojson.Unmarshal(tierJson, tier)
+		if err != nil {
+			return errors.Wrap(err, "Failed to decode tiers json")
+		}
+		tierResponses[i].Limit = tiers[i].Limit
+		tierResponses[i].MaxPerAddress = tiers[i].MaxPerAddress
+		tierResponses[i].PriceSat = tiers[i].PriceSat
+		tierResponses[i].Sold = nodeCount[i].Count
+	}
+
+	err = ctx.JSON(&deployResponse{
+		Id:              request.DeployID,
+		Name:            deploy.Name,
+		StartsAt:        deploy.StartsAt.UTC().Unix(),
+		EndsAt:          deploy.EndsAt.UTC().Unix(),
+		Tiers:           tierResponses,
+		SellerPublicKey: deploy.SellerPublicKey,
+		MaxPerAddress:   deploy.MaxPerAddress,
+		DeployTxHash:    deploy.DeployTxHash,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Go fiber cannot parse JSON")
+	}
+	return nil
+}

modules/nodesale/api/httphandler/events.go

@@ -0,0 +1,56 @@
+package httphandler
+
+import (
+	"encoding/json"
+	"time"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"github.com/gofiber/fiber/v2"
+)
+
+type eventRequest struct {
+	WalletAddress string `query:"walletAddress"`
+}
+
+type eventResposne struct {
+	TxHash         string          `json:"txHash"`
+	BlockHeight    int64           `json:"blockHeight"`
+	TxIndex        int32           `json:"txIndex"`
+	WalletAddress  string          `json:"walletAddress"`
+	Action         string          `json:"action"`
+	ParsedMessage  json.RawMessage `json:"parsedMessage"`
+	BlockTimestamp time.Time       `json:"blockTimestamp"`
+	BlockHash      string          `json:"blockHash"`
+}
+
+func (h *handler) eventsHandler(ctx *fiber.Ctx) error {
+	var request eventRequest
+	err := ctx.QueryParser(&request)
+	if err != nil {
+		return errors.Wrap(err, "cannot parse query")
+	}
+
+	events, err := h.nodeSaleDg.GetEventsByWallet(ctx.UserContext(), request.WalletAddress)
+	if err != nil {
+		return errors.Wrap(err, "Can't get events from db")
+	}
+
+	responses := make([]eventResposne, len(events))
+	for i, event := range events {
+		responses[i].TxHash = event.TxHash
+		responses[i].BlockHeight = event.BlockHeight
+		responses[i].TxIndex = event.TxIndex
+		responses[i].WalletAddress = event.WalletAddress
+		responses[i].Action = protobuf.Action_name[event.Action]
+		responses[i].ParsedMessage = event.ParsedMessage
+		responses[i].BlockTimestamp = event.BlockTimestamp
+		responses[i].BlockHash = event.BlockHash
+	}
+
+	err = ctx.JSON(responses)
+	if err != nil {
+		return errors.Wrap(err, "Go fiber cannot parse JSON")
+	}
+	return nil
+}

modules/nodesale/api/httphandler/handler.go

@@ -0,0 +1,15 @@
+package httphandler
+
+import (
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+)
+
+type handler struct {
+	nodeSaleDg datagateway.NodeSaleDataGateway
+}
+
+func New(datagateway datagateway.NodeSaleDataGateway) *handler {
+	h := handler{}
+	h.nodeSaleDg = datagateway
+	return &h
+}

modules/nodesale/api/httphandler/info.go

@@ -0,0 +1,26 @@
+package httphandler
+
+import (
+	"github.com/cockroachdb/errors"
+	"github.com/gofiber/fiber/v2"
+)
+
+type infoResponse struct {
+	IndexedBlockHeight int64  `json:"indexedBlockHeight"`
+	IndexedBlockHash   string `json:"indexedBlockHash"`
+}
+
+func (h *handler) infoHandler(ctx *fiber.Ctx) error {
+	block, err := h.nodeSaleDg.GetLastProcessedBlock(ctx.UserContext())
+	if err != nil {
+		return errors.Wrap(err, "Cannot get last processed block")
+	}
+	err = ctx.JSON(infoResponse{
+		IndexedBlockHeight: block.BlockHeight,
+		IndexedBlockHash:   block.BlockHash,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Go fiber cannot parse JSON")
+	}
+	return nil
+}

modules/nodesale/api/httphandler/nodes.go

@@ -0,0 +1,72 @@
+package httphandler
+
+import (
+	"fmt"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/common/errs"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gofiber/fiber/v2"
+)
+
+type nodeRequest struct {
+	DeployId           string `query:"deployId"`
+	OwnerPublicKey     string `query:"ownerPublicKey"`
+	DelegateePublicKey string `query:"delegateePublicKey"`
+}
+
+type nodeResponse struct {
+	DeployId            string `json:"deployId"`
+	NodeId              uint32 `json:"nodeId"`
+	TierIndex           int32  `json:"tierIndex"`
+	DelegatedTo         string `json:"delegatedTo"`
+	OwnerPublicKey      string `json:"ownerPublicKey"`
+	PurchaseTxHash      string `json:"purchaseTxHash"`
+	DelegateTxHash      string `json:"delegateTxHash"`
+	PurchaseBlockHeight int32  `json:"purchaseBlockHeight"`
+}
+
+func (h *handler) nodesHandler(ctx *fiber.Ctx) error {
+	var request nodeRequest
+	err := ctx.QueryParser(&request)
+	if err != nil {
+		return errors.Wrap(err, "cannot parse query")
+	}
+
+	ownerPublicKey := request.OwnerPublicKey
+	delegateePublicKey := request.DelegateePublicKey
+
+	var blockHeight int64
+	var txIndex int32
+	count, err := fmt.Sscanf(request.DeployId, "%d-%d", &blockHeight, &txIndex)
+	if count != 2 || err != nil {
+		return errs.NewPublicError("Invalid deploy ID")
+	}
+
+	nodes, err := h.nodeSaleDg.GetNodesByPubkey(ctx.UserContext(), datagateway.GetNodesByPubkeyParams{
+		SaleBlock:      blockHeight,
+		SaleTxIndex:    txIndex,
+		OwnerPublicKey: ownerPublicKey,
+		DelegatedTo:    delegateePublicKey,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Can't get nodes from db")
+	}
+	responses := make([]nodeResponse, len(nodes))
+	for i, node := range nodes {
+		responses[i].DeployId = request.DeployId
+		responses[i].NodeId = node.NodeID
+		responses[i].TierIndex = node.TierIndex
+		responses[i].DelegatedTo = node.DelegatedTo
+		responses[i].OwnerPublicKey = node.OwnerPublicKey
+		responses[i].PurchaseTxHash = node.PurchaseTxHash
+		responses[i].DelegateTxHash = node.DelegateTxHash
+		responses[i].PurchaseBlockHeight = txIndex
+	}
+
+	err = ctx.JSON(responses)
+	if err != nil {
+		return errors.Wrap(err, "Go fiber cannot parse JSON")
+	}
+	return nil
+}

modules/nodesale/api/httphandler/routes.go

@@ -0,0 +1,16 @@
+package httphandler
+
+import (
+	"github.com/gofiber/fiber/v2"
+)
+
+func (h *handler) Mount(router fiber.Router) error {
+	r := router.Group("/nodesale/v1")
+
+	r.Get("/info", h.infoHandler)
+	r.Get("/deploy/:deployId", h.deployHandler)
+	r.Get("/nodes", h.nodesHandler)
+	r.Get("/events", h.eventsHandler)
+
+	return nil
+}

modules/nodesale/config/config.go

@@ -0,0 +1,8 @@
+package config
+
+import "github.com/gaze-network/indexer-network/internal/postgres"
+
+type Config struct {
+	Postgres         postgres.Config `mapstructure:"postgres"`
+	LastBlockDefault int64           `mapstructure:"last_block_default"`
+}

modules/nodesale/database/postgresql/migrations/000001_initialize.down.sql

@@ -0,0 +1,9 @@
+BEGIN;
+
+DROP TABLE IF EXISTS nodes;
+DROP TABLE IF EXISTS node_sales;
+DROP TABLE IF EXISTS events;
+DROP TABLE IF EXISTS blocks;
+
+
+COMMIT;

modules/nodesale/database/postgresql/migrations/000001_initialize.up.sql

@@ -0,0 +1,64 @@
+BEGIN;
+
+CREATE TABLE IF NOT EXISTS blocks (
+    "block_height" BIGINT NOT NULL,
+    "block_hash" TEXT NOT NULL,
+    "module" TEXT NOT NULL,
+    PRIMARY KEY("block_height", "block_hash")
+);
+
+CREATE TABLE IF NOT EXISTS events (
+    "tx_hash" TEXT NOT NULL PRIMARY KEY,
+    "block_height" BIGINT NOT NULL,
+    "tx_index" INTEGER NOT NULL,
+    "wallet_address" TEXT NOT NULL,
+    "valid" BOOLEAN NOT NULL,
+    "action" INTEGER NOT NULL,
+    "raw_message" BYTEA NOT NULL,
+    "parsed_message" JSONB NOT NULL DEFAULT '{}',
+    "block_timestamp" TIMESTAMP NOT NULL,
+    "block_hash" TEXT NOT NULL,
+    "metadata" JSONB NOT NULL DEFAULT '{}',
+    "reason" TEXT NOT NULL DEFAULT ''
+);
+
+INSERT INTO events("tx_hash", "block_height", "tx_index",
+                 "wallet_address", "valid", "action", 
+                "raw_message", "parsed_message", "block_timestamp",
+                "block_hash", "metadata")
+VALUES ('', -1, -1,
+        '', false, -1,
+        '', '{}', NOW(),
+        '', '{}');
+
+CREATE TABLE IF NOT EXISTS node_sales (
+    "block_height" BIGINT NOT NULL,
+    "tx_index" INTEGER NOT NULL,
+    "name" TEXT NOT NULL,
+    "starts_at" TIMESTAMP NOT NULL,
+    "ends_at" TIMESTAMP NOT NULL,
+    "tiers" JSONB[] NOT NULL,
+    "seller_public_key" TEXT NOT NULL,
+    "max_per_address" INTEGER NOT NULL,
+    "deploy_tx_hash" TEXT NOT NULL REFERENCES events(tx_hash) ON DELETE CASCADE,
+    "max_discount_percentage" INTEGER NOT NULL,
+    "seller_wallet" TEXT NOT NULL,
+    PRIMARY KEY ("block_height", "tx_index")
+);
+
+CREATE TABLE IF NOT EXISTS nodes (
+    "sale_block" BIGINT NOT NULL,
+    "sale_tx_index" INTEGER NOT NULL,
+    "node_id" INTEGER NOT NULL,
+    "tier_index" INTEGER NOT NULL,
+    "delegated_to" TEXT NOT NULL DEFAULT '',
+    "owner_public_key" TEXT NOT NULL,
+    "purchase_tx_hash" TEXT NOT NULL REFERENCES events(tx_hash) ON DELETE CASCADE,
+    "delegate_tx_hash" TEXT NOT NULL DEFAULT '' REFERENCES events(tx_hash) ON DELETE SET DEFAULT,
+    PRIMARY KEY("sale_block", "sale_tx_index", "node_id"),
+    FOREIGN KEY("sale_block", "sale_tx_index") REFERENCES node_sales("block_height", "tx_index")
+);
+
+
+
+COMMIT;

modules/nodesale/database/postgresql/queries/blocks.sql

@@ -0,0 +1,15 @@
+-- name: GetLastProcessedBlock :one
+SELECT * FROM blocks ORDER BY block_height DESC LIMIT 1;  
+
+
+-- name: GetBlock :one
+SELECT * FROM blocks
+WHERE "block_height" = $1;
+
+-- name: RemoveBlockFrom :execrows
+DELETE FROM blocks
+WHERE "block_height" >= @from_block;
+
+-- name: CreateBlock :exec
+INSERT INTO blocks ("block_height", "block_hash", "module")
+VALUES ($1, $2, $3);

modules/nodesale/database/postgresql/queries/events.sql

@@ -0,0 +1,14 @@
+-- name: RemoveEventsFromBlock :execrows
+DELETE FROM events
+WHERE "block_height" >= @from_block;
+
+-- name: CreateEvent :exec
+INSERT INTO events ("tx_hash", "block_height", "tx_index", "wallet_address", "valid", "action", 
+                    "raw_message", "parsed_message", "block_timestamp", "block_hash", "metadata",
+                    "reason")
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12);
+
+-- name: GetEventsByWallet :many
+SELECT *
+FROM events
+WHERE wallet_address = $1;

modules/nodesale/database/postgresql/queries/nodes.sql

@@ -0,0 +1,51 @@
+-- name: ClearDelegate :execrows
+UPDATE nodes
+SET "delegated_to" = ''
+WHERE "delegate_tx_hash" = '';
+
+-- name: SetDelegates :execrows
+UPDATE nodes
+SET delegated_to = @delegatee, delegate_tx_hash = $3
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    node_id = ANY (@node_ids::int[]);
+
+-- name: GetNodesByIds :many
+SELECT *
+FROM nodes
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    node_id = ANY (@node_ids::int[]);
+
+
+-- name: GetNodesByOwner :many
+SELECT * 
+FROM nodes
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    owner_public_key = $3
+ORDER BY tier_index;
+
+-- name: GetNodesByPubkey :many
+SELECT nodes.*
+FROM nodes JOIN events ON nodes.purchase_tx_hash = events.tx_hash
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    owner_public_key = $3 AND
+    delegated_to = $4;
+
+-- name: CreateNode :exec
+INSERT INTO nodes (sale_block, sale_tx_index, node_id, tier_index, delegated_to, owner_public_key, purchase_tx_hash, delegate_tx_hash)
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8);
+
+-- name: GetNodeCountByTierIndex :many
+SELECT (tiers.tier_index)::int AS tier_index, count(nodes.tier_index)
+FROM generate_series(@from_tier::int,@to_tier::int) AS tiers(tier_index)
+LEFT JOIN 
+	(SELECT * 
+	FROM nodes 
+	WHERE sale_block = $1 AND 
+		sale_tx_index= $2) 
+	AS nodes ON tiers.tier_index = nodes.tier_index 
+GROUP BY tiers.tier_index
+ORDER BY tiers.tier_index;

modules/nodesale/database/postgresql/queries/nodesales.sql

@@ -0,0 +1,9 @@
+-- name: CreateNodeSale :exec
+INSERT INTO node_sales ("block_height", "tx_index", "name", "starts_at", "ends_at", "tiers", "seller_public_key", "max_per_address", "deploy_tx_hash", "max_discount_percentage", "seller_wallet")
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11);
+
+-- name: GetNodeSale :many
+SELECT *
+FROM node_sales
+WHERE block_height = $1 AND
+    tx_index = $2;

modules/nodesale/database/postgresql/queries/test.sql

@@ -0,0 +1,3 @@
+-- name: ClearEvents :exec
+DELETE FROM events
+WHERE tx_hash <> '';

modules/nodesale/datagateway/nodesale.go

@@ -0,0 +1,76 @@
+package datagateway
+
+import (
+	"context"
+
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+)
+
+type NodeSaleDataGateway interface {
+	BeginNodeSaleTx(ctx context.Context) (NodeSaleDataGatewayWithTx, error)
+	CreateBlock(ctx context.Context, arg entity.Block) error
+	GetBlock(ctx context.Context, blockHeight int64) (*entity.Block, error)
+	GetLastProcessedBlock(ctx context.Context) (*entity.Block, error)
+	RemoveBlockFrom(ctx context.Context, fromBlock int64) (int64, error)
+	RemoveEventsFromBlock(ctx context.Context, fromBlock int64) (int64, error)
+	ClearDelegate(ctx context.Context) (int64, error)
+	GetNodesByIds(ctx context.Context, arg GetNodesByIdsParams) ([]entity.Node, error)
+	CreateEvent(ctx context.Context, arg entity.NodeSaleEvent) error
+	SetDelegates(ctx context.Context, arg SetDelegatesParams) (int64, error)
+	CreateNodeSale(ctx context.Context, arg entity.NodeSale) error
+	GetNodeSale(ctx context.Context, arg GetNodeSaleParams) ([]entity.NodeSale, error)
+	GetNodesByOwner(ctx context.Context, arg GetNodesByOwnerParams) ([]entity.Node, error)
+	CreateNode(ctx context.Context, arg entity.Node) error
+	GetNodeCountByTierIndex(ctx context.Context, arg GetNodeCountByTierIndexParams) ([]GetNodeCountByTierIndexRow, error)
+	GetNodesByPubkey(ctx context.Context, arg GetNodesByPubkeyParams) ([]entity.Node, error)
+	GetEventsByWallet(ctx context.Context, walletAddress string) ([]entity.NodeSaleEvent, error)
+}
+
+type NodeSaleDataGatewayWithTx interface {
+	NodeSaleDataGateway
+	Tx
+}
+
+type GetNodesByIdsParams struct {
+	SaleBlock   uint64
+	SaleTxIndex uint32
+	NodeIds     []uint32
+}
+
+type SetDelegatesParams struct {
+	SaleBlock      uint64
+	SaleTxIndex    int32
+	Delegatee      string
+	DelegateTxHash string
+	NodeIds        []uint32
+}
+
+type GetNodeSaleParams struct {
+	BlockHeight uint64
+	TxIndex     uint32
+}
+
+type GetNodesByOwnerParams struct {
+	SaleBlock      uint64
+	SaleTxIndex    uint32
+	OwnerPublicKey string
+}
+
+type GetNodeCountByTierIndexParams struct {
+	SaleBlock   uint64
+	SaleTxIndex uint32
+	FromTier    uint32
+	ToTier      uint32
+}
+
+type GetNodeCountByTierIndexRow struct {
+	TierIndex int32
+	Count     int64
+}
+
+type GetNodesByPubkeyParams struct {
+	SaleBlock      int64
+	SaleTxIndex    int32
+	OwnerPublicKey string
+	DelegatedTo    string
+}

modules/nodesale/datagateway/tx.go

@@ -0,0 +1,12 @@
+package datagateway
+
+import "context"
+
+type Tx interface {
+	// Commit commits the DB transaction. All changes made after Begin() will be persisted. Calling Commit() will close the current transaction.
+	// If Commit() is called without a prior Begin(), it must be a no-op.
+	Commit(ctx context.Context) error
+	// Rollback rolls back the DB transaction. All changes made after Begin() will be discarded.
+	// Rollback() must be safe to call even if no transaction is active. Hence, a defer Rollback() is safe, even if Commit() was called prior with non-error conditions.
+	Rollback(ctx context.Context) error
+}

modules/nodesale/delegate.go

@@ -0,0 +1,61 @@
+package nodesale
+
+import (
+	"context"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	delegatevalidator "github.com/gaze-network/indexer-network/modules/nodesale/internal/validator/delegate"
+)
+
+func (p *Processor) ProcessDelegate(ctx context.Context, qtx datagateway.NodeSaleDataGatewayWithTx, block *types.Block, event NodeSaleEvent) error {
+	validator := delegatevalidator.New()
+	delegate := event.EventMessage.Delegate
+
+	_, nodes, err := validator.NodesExist(ctx, qtx, delegate.DeployID, delegate.NodeIDs)
+	if err != nil {
+		return errors.Wrap(err, "Cannot query")
+	}
+
+	for _, node := range nodes {
+		valid := validator.EqualXonlyPublicKey(node.OwnerPublicKey, event.TxPubkey)
+		if !valid {
+			break
+		}
+	}
+
+	err = qtx.CreateEvent(ctx, entity.NodeSaleEvent{
+		TxHash:         event.Transaction.TxHash.String(),
+		TxIndex:        int32(event.Transaction.Index),
+		Action:         int32(event.EventMessage.Action),
+		RawMessage:     event.RawData,
+		ParsedMessage:  event.EventJson,
+		BlockTimestamp: block.Header.Timestamp,
+		BlockHash:      event.Transaction.BlockHash.String(),
+		BlockHeight:    event.Transaction.BlockHeight,
+		Valid:          validator.Valid,
+		WalletAddress:  p.PubkeyToPkHashAddress(event.TxPubkey).EncodeAddress(),
+		Metadata:       nil,
+		Reason:         validator.Reason,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Failed to insert event")
+	}
+
+	if validator.Valid {
+		_, err = qtx.SetDelegates(ctx, datagateway.SetDelegatesParams{
+			SaleBlock:      delegate.DeployID.Block,
+			SaleTxIndex:    int32(delegate.DeployID.TxIndex),
+			Delegatee:      delegate.DelegateePublicKey,
+			DelegateTxHash: event.Transaction.TxHash.String(),
+			NodeIds:        delegate.NodeIDs,
+		})
+		if err != nil {
+			return errors.Wrap(err, "Failed to set delegate")
+		}
+	}
+
+	return nil
+}

modules/nodesale/delegate_test.go

@@ -0,0 +1,84 @@
+package nodesale
+
+import (
+	"context"
+	"encoding/hex"
+	"testing"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway/mocks"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDelegate(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	delegateePrivateKey, _ := btcec.NewPrivateKey()
+	delegateePubkeyHex := hex.EncodeToString(delegateePrivateKey.PubKey().SerializeCompressed())
+
+	delegateMessage := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_DELEGATE,
+		Delegate: &protobuf.ActionDelegate{
+			DelegateePublicKey: delegateePubkeyHex,
+			NodeIDs:            []uint32{9, 10},
+			DeployID: &protobuf.ActionID{
+				Block:   uint64(testBlockHeight) - 2,
+				TxIndex: uint32(testTxIndex) - 2,
+			},
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "131313131313", "131313131313", 0, 0, delegateMessage)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == true
+	})).Return(nil)
+
+	mockDgTx.EXPECT().GetNodesByIds(mock.Anything, datagateway.GetNodesByIdsParams{
+		SaleBlock:   delegateMessage.Delegate.DeployID.Block,
+		SaleTxIndex: delegateMessage.Delegate.DeployID.TxIndex,
+		NodeIds:     []uint32{9, 10},
+	}).Return([]entity.Node{
+		{
+			SaleBlock:      delegateMessage.Delegate.DeployID.Block,
+			SaleTxIndex:    delegateMessage.Delegate.DeployID.TxIndex,
+			NodeID:         9,
+			TierIndex:      1,
+			DelegatedTo:    "",
+			OwnerPublicKey: buyerPubkeyHex,
+			PurchaseTxHash: mock.Anything,
+			DelegateTxHash: "",
+		},
+		{
+			SaleBlock:      delegateMessage.Delegate.DeployID.Block,
+			SaleTxIndex:    delegateMessage.Delegate.DeployID.TxIndex,
+			NodeID:         10,
+			TierIndex:      2,
+			DelegatedTo:    "",
+			OwnerPublicKey: buyerPubkeyHex,
+			PurchaseTxHash: mock.Anything,
+			DelegateTxHash: "",
+		},
+	}, nil)
+
+	mockDgTx.EXPECT().SetDelegates(mock.Anything, datagateway.SetDelegatesParams{
+		SaleBlock:      delegateMessage.Delegate.DeployID.Block,
+		SaleTxIndex:    int32(delegateMessage.Delegate.DeployID.TxIndex),
+		Delegatee:      delegateMessage.Delegate.DelegateePublicKey,
+		DelegateTxHash: event.Transaction.TxHash.String(),
+		NodeIds:        delegateMessage.Delegate.NodeIDs,
+	}).Return(2, nil)
+
+	err := p.ProcessDelegate(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+}

modules/nodesale/deploy.go

@@ -0,0 +1,67 @@
+package nodesale
+
+import (
+	"context"
+	"time"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/validator"
+	"google.golang.org/protobuf/encoding/protojson"
+)
+
+func (p *Processor) ProcessDeploy(ctx context.Context, qtx datagateway.NodeSaleDataGatewayWithTx, block *types.Block, event NodeSaleEvent) error {
+	deploy := event.EventMessage.Deploy
+
+	validator := validator.New()
+
+	validator.EqualXonlyPublicKey(deploy.SellerPublicKey, event.TxPubkey)
+
+	err := qtx.CreateEvent(ctx, entity.NodeSaleEvent{
+		TxHash:         event.Transaction.TxHash.String(),
+		TxIndex:        int32(event.Transaction.Index),
+		Action:         int32(event.EventMessage.Action),
+		RawMessage:     event.RawData,
+		ParsedMessage:  event.EventJson,
+		BlockTimestamp: block.Header.Timestamp,
+		BlockHash:      event.Transaction.BlockHash.String(),
+		BlockHeight:    event.Transaction.BlockHeight,
+		Valid:          validator.Valid,
+		WalletAddress:  p.PubkeyToPkHashAddress(event.TxPubkey).EncodeAddress(),
+		Metadata:       nil,
+		Reason:         validator.Reason,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Failed to insert event")
+	}
+	if validator.Valid {
+		tiers := make([][]byte, len(deploy.Tiers))
+		for i, tier := range deploy.Tiers {
+			tierJson, err := protojson.Marshal(tier)
+			if err != nil {
+				return errors.Wrap(err, "Failed to parse tiers to json")
+			}
+			tiers[i] = tierJson
+		}
+		err = qtx.CreateNodeSale(ctx, entity.NodeSale{
+			BlockHeight:           uint64(event.Transaction.BlockHeight),
+			TxIndex:               event.Transaction.Index,
+			Name:                  deploy.Name,
+			StartsAt:              time.Unix(int64(deploy.StartsAt), 0),
+			EndsAt:                time.Unix(int64(deploy.EndsAt), 0),
+			Tiers:                 tiers,
+			SellerPublicKey:       deploy.SellerPublicKey,
+			MaxPerAddress:         deploy.MaxPerAddress,
+			DeployTxHash:          event.Transaction.TxHash.String(),
+			MaxDiscountPercentage: int32(deploy.MaxDiscountPercentage),
+			SellerWallet:          deploy.SellerWallet,
+		})
+		if err != nil {
+			return errors.Wrap(err, "Failed to insert NodeSale")
+		}
+	}
+
+	return nil
+}

modules/nodesale/deploy_test.go

@@ -0,0 +1,139 @@
+package nodesale
+
+import (
+	"context"
+	"encoding/hex"
+	"testing"
+	"time"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway/mocks"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"github.com/samber/lo"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/protobuf/encoding/protojson"
+)
+
+func TestDeployInvalid(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	prvKey, err := btcec.NewPrivateKey()
+	require.NoError(t, err)
+
+	strangerKey, err := btcec.NewPrivateKey()
+	require.NoError(t, err)
+
+	strangerPubkeyHex := hex.EncodeToString(strangerKey.PubKey().SerializeCompressed())
+
+	sellerWallet := p.PubkeyToPkHashAddress(prvKey.PubKey())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_DEPLOY,
+		Deploy: &protobuf.ActionDeploy{
+			Name:     t.Name(),
+			StartsAt: 100,
+			EndsAt:   200,
+			Tiers: []*protobuf.Tier{
+				{
+					PriceSat:      100,
+					Limit:         5,
+					MaxPerAddress: 100,
+				},
+				{
+					PriceSat:      200,
+					Limit:         5,
+					MaxPerAddress: 100,
+				},
+			},
+			SellerPublicKey:       strangerPubkeyHex,
+			MaxPerAddress:         100,
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}
+
+	event, block := assembleTestEvent(prvKey, "0101010101", "0101010101", 0, 0, message)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false
+	})).Return(nil)
+
+	err = p.ProcessDeploy(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNodeSale")
+}
+
+func TestDeployValid(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	privateKey, err := btcec.NewPrivateKey()
+	require.NoError(t, err)
+
+	pubkeyHex := hex.EncodeToString(privateKey.PubKey().SerializeCompressed())
+
+	sellerWallet := p.PubkeyToPkHashAddress(privateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_DEPLOY,
+		Deploy: &protobuf.ActionDeploy{
+			Name:     t.Name(),
+			StartsAt: uint32(startAt.UTC().Unix()),
+			EndsAt:   uint32(endAt.UTC().Unix()),
+			Tiers: []*protobuf.Tier{
+				{
+					PriceSat:      100,
+					Limit:         5,
+					MaxPerAddress: 100,
+				},
+				{
+					PriceSat:      200,
+					Limit:         5,
+					MaxPerAddress: 100,
+				},
+			},
+			SellerPublicKey:       pubkeyHex,
+			MaxPerAddress:         100,
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}
+
+	event, block := assembleTestEvent(privateKey, "0202020202", "0202020202", 0, 0, message)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == true
+	})).Return(nil)
+
+	tiers := lo.Map(message.Deploy.Tiers, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().CreateNodeSale(mock.Anything, entity.NodeSale{
+		BlockHeight:           uint64(event.Transaction.BlockHeight),
+		TxIndex:               uint32(event.Transaction.Index),
+		Name:                  message.Deploy.Name,
+		StartsAt:              time.Unix(int64(message.Deploy.StartsAt), 0),
+		EndsAt:                time.Unix(int64(message.Deploy.EndsAt), 0),
+		Tiers:                 tiers,
+		SellerPublicKey:       message.Deploy.SellerPublicKey,
+		MaxPerAddress:         message.Deploy.MaxPerAddress,
+		DeployTxHash:          event.Transaction.TxHash.String(),
+		MaxDiscountPercentage: int32(message.Deploy.MaxDiscountPercentage),
+		SellerWallet:          message.Deploy.SellerWallet,
+	}).Return(nil)
+
+	p.ProcessDeploy(ctx, mockDgTx, block, event)
+}

modules/nodesale/internal/entity/entity.go

@@ -0,0 +1,55 @@
+package entity
+
+import "time"
+
+type Block struct {
+	BlockHeight int64
+	BlockHash   string
+	Module      string
+}
+
+type Node struct {
+	SaleBlock      uint64
+	SaleTxIndex    uint32
+	NodeID         uint32
+	TierIndex      int32
+	DelegatedTo    string
+	OwnerPublicKey string
+	PurchaseTxHash string
+	DelegateTxHash string
+}
+
+type NodeSale struct {
+	BlockHeight           uint64
+	TxIndex               uint32
+	Name                  string
+	StartsAt              time.Time
+	EndsAt                time.Time
+	Tiers                 [][]byte
+	SellerPublicKey       string
+	MaxPerAddress         uint32
+	DeployTxHash          string
+	MaxDiscountPercentage int32
+	SellerWallet          string
+}
+
+type NodeSaleEvent struct {
+	TxHash         string
+	BlockHeight    int64
+	TxIndex        int32
+	WalletAddress  string
+	Valid          bool
+	Action         int32
+	RawMessage     []byte
+	ParsedMessage  []byte
+	BlockTimestamp time.Time
+	BlockHash      string
+	Metadata       *MetadataEventPurchase
+	Reason         string
+}
+
+type MetadataEventPurchase struct {
+	ExpectedTotalAmountDiscounted uint64
+	ReportedTotalAmount           uint64
+	PaidTotalAmount               uint64
+}

modules/nodesale/internal/validator/delegate/validator.go

@@ -0,0 +1,51 @@
+package delegate
+
+import (
+	"context"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/validator"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+)
+
+type DelegateValidator struct {
+	validator.Validator
+}
+
+func New() *DelegateValidator {
+	v := validator.New()
+	return &DelegateValidator{
+		Validator: *v,
+	}
+}
+
+func (v *DelegateValidator) NodesExist(
+	ctx context.Context,
+	qtx datagateway.NodeSaleDataGatewayWithTx,
+	deployId *protobuf.ActionID,
+	nodeIds []uint32,
+) (bool, []entity.Node, error) {
+	if !v.Valid {
+		return false, nil, nil
+	}
+
+	nodes, err := qtx.GetNodesByIds(ctx, datagateway.GetNodesByIdsParams{
+		SaleBlock:   deployId.Block,
+		SaleTxIndex: deployId.TxIndex,
+		NodeIds:     nodeIds,
+	})
+	if err != nil {
+		v.Valid = false
+		return v.Valid, nil, errors.Wrap(err, "Failed to get nodes")
+	}
+
+	if len(nodeIds) != len(nodes) {
+		v.Valid = false
+		return v.Valid, nil, nil
+	}
+
+	v.Valid = true
+	return v.Valid, nodes, nil
+}

modules/nodesale/internal/validator/errors.go

@@ -0,0 +1,6 @@
+package validator
+
+const (
+	INVALID_PUBKEY_FORMAT = "Cannot parse public key"
+	INVALID_PUBKEY        = "Invalid public key"
+)

modules/nodesale/internal/validator/purchase/errors.go

@@ -0,0 +1,17 @@
+package purchase
+
+const (
+	DEPLOYID_NOT_FOUND         = "Depoloy ID not found."
+	PURCHASE_TIMEOUT           = "Purchase timeout."
+	BLOCK_HEIGHT_TIMEOUT       = "Block height over timeout block"
+	INVALID_SIGNATURE_FORMAT   = "Cannot parse signature."
+	INVALID_SIGNATURE          = "Invalid Signature."
+	INVALID_TIER_JSON          = "Invalid Tier format"
+	INVALID_NODE_ID            = "Invalid NodeId."
+	NODE_ALREADY_PURCHASED     = "Some node has been purchased."
+	INVALID_SELLER_ADDR_FORMAT = "Invalid seller address."
+	INVALID_PAYMENT            = "Total amount paid less than reported price"
+	INSUFFICIENT_FUND          = "Insufficient fund"
+	OVER_LIMIT_PER_ADDR        = "Purchase over limit per address."
+	OVER_LIMIT_PER_TIER        = "Purchase over limit per tier."
+)

modules/nodesale/internal/validator/purchase/validator.go

@@ -0,0 +1,283 @@
+package purchase
+
+import (
+	"context"
+	"encoding/hex"
+	"slices"
+	"time"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/btcsuite/btcd/btcec/v2/ecdsa"
+	"github.com/btcsuite/btcd/chaincfg"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/validator"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/proto"
+)
+
+type PurchaseValidator struct {
+	validator.Validator
+}
+
+func New() *PurchaseValidator {
+	v := validator.New()
+	return &PurchaseValidator{
+		Validator: *v,
+	}
+}
+
+func (v *PurchaseValidator) NodeSaleExists(ctx context.Context, qtx datagateway.NodeSaleDataGatewayWithTx, payload *protobuf.PurchasePayload) (bool, *entity.NodeSale, error) {
+	if !v.Valid {
+		return false, nil, nil
+	}
+	// check node existed
+	deploys, err := qtx.GetNodeSale(ctx, datagateway.GetNodeSaleParams{
+		BlockHeight: payload.DeployID.Block,
+		TxIndex:     payload.DeployID.TxIndex,
+	})
+	if err != nil {
+		v.Valid = false
+		return v.Valid, nil, errors.Wrap(err, "Failed to Get NodeSale")
+	}
+	if len(deploys) < 1 {
+		v.Valid = false
+		v.Reason = DEPLOYID_NOT_FOUND
+		return v.Valid, nil, nil
+	}
+	v.Valid = true
+	return v.Valid, &deploys[0], nil
+}
+
+func (v *PurchaseValidator) ValidTimestamp(deploy *entity.NodeSale, timestamp time.Time) bool {
+	if !v.Valid {
+		return false
+	}
+	if timestamp.Before(deploy.StartsAt) ||
+		timestamp.After(deploy.EndsAt) {
+		v.Valid = false
+		v.Reason = PURCHASE_TIMEOUT
+		return v.Valid
+	}
+	v.Valid = true
+	return v.Valid
+}
+
+func (v *PurchaseValidator) WithinTimeoutBlock(timeOutBlock uint64, blockHeight uint64) bool {
+	if !v.Valid {
+		return false
+	}
+	if timeOutBlock == 0 {
+		// No timeout
+		v.Valid = true
+		return v.Valid
+	}
+	if timeOutBlock < blockHeight {
+		v.Valid = false
+		v.Reason = BLOCK_HEIGHT_TIMEOUT
+		return v.Valid
+	}
+	v.Valid = true
+	return v.Valid
+}
+
+func (v *PurchaseValidator) VerifySignature(purchase *protobuf.ActionPurchase, deploy *entity.NodeSale) bool {
+	if !v.Valid {
+		return false
+	}
+	payload := purchase.Payload
+	payloadBytes, _ := proto.Marshal(payload)
+	signatureBytes, _ := hex.DecodeString(purchase.SellerSignature)
+	signature, err := ecdsa.ParseSignature(signatureBytes)
+	if err != nil {
+		v.Valid = false
+		v.Reason = INVALID_SIGNATURE_FORMAT
+		return v.Valid
+	}
+	hash := chainhash.DoubleHashB(payloadBytes)
+	pubkeyBytes, _ := hex.DecodeString(deploy.SellerPublicKey)
+	pubKey, _ := btcec.ParsePubKey(pubkeyBytes)
+	verified := signature.Verify(hash[:], pubKey)
+	if !verified {
+		v.Valid = false
+		v.Reason = INVALID_SIGNATURE
+		return v.Valid
+	}
+	v.Valid = true
+	return v.Valid
+}
+
+type TierMap struct {
+	Tiers            []protobuf.Tier
+	BuyingTiersCount []uint32
+	NodeIdToTier     map[uint32]int32
+}
+
+func (v *PurchaseValidator) ValidTiers(
+	payload *protobuf.PurchasePayload,
+	deploy *entity.NodeSale,
+) (bool, TierMap) {
+	if !v.Valid {
+		return false, TierMap{}
+	}
+	tiers := make([]protobuf.Tier, len(deploy.Tiers))
+	buyingTiersCount := make([]uint32, len(tiers))
+	nodeIdToTier := make(map[uint32]int32)
+
+	for i, tierJson := range deploy.Tiers {
+		tier := &tiers[i]
+		err := protojson.Unmarshal(tierJson, tier)
+		if err != nil {
+			v.Valid = false
+			v.Reason = INVALID_TIER_JSON
+			return v.Valid, TierMap{}
+		}
+	}
+
+	slices.Sort(payload.NodeIDs)
+
+	var currentTier int32 = -1
+	var tierSum uint32 = 0
+	for _, nodeId := range payload.NodeIDs {
+		for nodeId >= tierSum && currentTier < int32(len(tiers)-1) {
+			currentTier++
+			tierSum += tiers[currentTier].Limit
+		}
+		if nodeId < tierSum {
+			buyingTiersCount[currentTier]++
+			nodeIdToTier[nodeId] = currentTier
+		} else {
+			v.Valid = false
+			v.Reason = INVALID_NODE_ID
+			return false, TierMap{}
+		}
+	}
+	v.Valid = true
+	return v.Valid, TierMap{
+		Tiers:            tiers,
+		BuyingTiersCount: buyingTiersCount,
+		NodeIdToTier:     nodeIdToTier,
+	}
+}
+
+func (v *PurchaseValidator) ValidUnpurchasedNodes(
+	ctx context.Context,
+	qtx datagateway.NodeSaleDataGatewayWithTx,
+	payload *protobuf.PurchasePayload,
+) (bool, error) {
+	if !v.Valid {
+		return false, nil
+	}
+
+	// valid unpurchased node ID
+	nodes, err := qtx.GetNodesByIds(ctx, datagateway.GetNodesByIdsParams{
+		SaleBlock:   payload.DeployID.Block,
+		SaleTxIndex: payload.DeployID.TxIndex,
+		NodeIds:     payload.NodeIDs,
+	})
+	if err != nil {
+		v.Valid = false
+		return v.Valid, errors.Wrap(err, "Failed to Get nodes")
+	}
+	if len(nodes) > 0 {
+		v.Valid = false
+		v.Reason = NODE_ALREADY_PURCHASED
+		return false, nil
+	}
+	v.Valid = true
+	return true, nil
+}
+
+func (v *PurchaseValidator) ValidPaidAmount(
+	payload *protobuf.PurchasePayload,
+	deploy *entity.NodeSale,
+	txPaid uint64,
+	tiers []protobuf.Tier,
+	buyingTiersCount []uint32,
+	network *chaincfg.Params,
+) (bool, *entity.MetadataEventPurchase) {
+	if !v.Valid {
+		return false, nil
+	}
+
+	meta := entity.MetadataEventPurchase{}
+
+	meta.PaidTotalAmount = txPaid
+	meta.ReportedTotalAmount = uint64(payload.TotalAmountSat)
+	// total amount paid is greater than report paid
+	if txPaid < uint64(payload.TotalAmountSat) {
+		v.Valid = false
+		v.Reason = INVALID_PAYMENT
+		return v.Valid, nil
+	}
+	// calculate total price
+	var totalPrice uint64 = 0
+	for i := 0; i < len(tiers); i++ {
+		totalPrice += uint64(buyingTiersCount[i] * tiers[i].PriceSat)
+	}
+	// report paid is greater than max discounted total price
+	maxDiscounted := totalPrice * (100 - uint64(deploy.MaxDiscountPercentage))
+	decimal := maxDiscounted % 100
+	maxDiscounted /= 100
+	if decimal%100 >= 50 {
+		maxDiscounted++
+	}
+	meta.ExpectedTotalAmountDiscounted = maxDiscounted
+	if uint64(payload.TotalAmountSat) < maxDiscounted {
+		v.Valid = false
+		v.Reason = INSUFFICIENT_FUND
+		return v.Valid, nil
+	}
+	v.Valid = true
+	return v.Valid, &meta
+}
+
+func (v *PurchaseValidator) WithinLimit(
+	ctx context.Context,
+	qtx datagateway.NodeSaleDataGatewayWithTx,
+	payload *protobuf.PurchasePayload,
+	deploy *entity.NodeSale,
+	tiers []protobuf.Tier,
+	buyingTiersCount []uint32,
+) (bool, error) {
+	if !v.Valid {
+		return false, nil
+	}
+
+	// check node limit
+	// get all selled by seller and owned by buyer
+	buyerOwnedNodes, err := qtx.GetNodesByOwner(ctx, datagateway.GetNodesByOwnerParams{
+		SaleBlock:      deploy.BlockHeight,
+		SaleTxIndex:    deploy.TxIndex,
+		OwnerPublicKey: payload.BuyerPublicKey,
+	})
+	if err != nil {
+		v.Valid = false
+		return v.Valid, errors.Wrap(err, "Failed to GetNodesByOwner")
+	}
+	if len(buyerOwnedNodes)+len(payload.NodeIDs) > int(deploy.MaxPerAddress) {
+		v.Valid = false
+		v.Reason = "Purchase over limit per address."
+		return v.Valid, nil
+	}
+
+	// check limit
+	// count each tiers
+	// check limited for each tier
+	ownedTiersCount := make([]uint32, len(tiers))
+	for _, node := range buyerOwnedNodes {
+		ownedTiersCount[node.TierIndex]++
+	}
+	for i := 0; i < len(tiers); i++ {
+		if ownedTiersCount[i]+buyingTiersCount[i] > tiers[i].MaxPerAddress {
+			v.Valid = false
+			v.Reason = "Purchase over limit per tier."
+			return v.Valid, nil
+		}
+	}
+	v.Valid = true
+	return v.Valid, nil
+}

modules/nodesale/internal/validator/validator.go

@@ -0,0 +1,44 @@
+package validator
+
+import (
+	"bytes"
+	"encoding/hex"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+)
+
+type Validator struct {
+	Valid  bool
+	Reason string
+}
+
+func New() *Validator {
+	return &Validator{
+		Valid: true,
+	}
+}
+
+func (v *Validator) EqualXonlyPublicKey(target string, expected *btcec.PublicKey) bool {
+	if !v.Valid {
+		return false
+	}
+	targetBytes, err := hex.DecodeString(target)
+	if err != nil {
+		v.Valid = false
+		v.Reason = INVALID_PUBKEY_FORMAT
+	}
+
+	targetPubKey, err := btcec.ParsePubKey(targetBytes)
+	if err != nil {
+		v.Valid = false
+		v.Reason = INVALID_PUBKEY_FORMAT
+	}
+	xOnlyTargetPubKey := btcec.ToSerialized(targetPubKey).SchnorrSerialized()
+	xOnlyExpectedPubKey := btcec.ToSerialized(expected).SchnorrSerialized()
+
+	v.Valid = bytes.Equal(xOnlyTargetPubKey[:], xOnlyExpectedPubKey[:])
+	if !v.Valid {
+		v.Reason = INVALID_PUBKEY
+	}
+	return v.Valid
+}

modules/nodesale/nodesale.go

@@ -0,0 +1,61 @@
+package nodesale
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/btcsuite/btcd/rpcclient"
+	"github.com/gaze-network/indexer-network/core/datasources"
+	"github.com/gaze-network/indexer-network/core/indexer"
+	"github.com/gaze-network/indexer-network/internal/config"
+	"github.com/gaze-network/indexer-network/internal/postgres"
+	"github.com/gaze-network/indexer-network/modules/nodesale/api/httphandler"
+	repository "github.com/gaze-network/indexer-network/modules/nodesale/repository/postgres"
+	"github.com/gaze-network/indexer-network/pkg/logger"
+	"github.com/gofiber/fiber/v2"
+	"github.com/samber/do/v2"
+)
+
+var NODESALE_MAGIC = []byte{0x6e, 0x73, 0x6f, 0x70}
+
+const (
+	Version = "v0.0.1-alpha"
+)
+
+func New(injector do.Injector) (indexer.IndexerWorker, error) {
+	ctx := do.MustInvoke[context.Context](injector)
+	conf := do.MustInvoke[config.Config](injector)
+
+	btcClient := do.MustInvoke[*rpcclient.Client](injector)
+	datasource := datasources.NewBitcoinNode(btcClient)
+
+	pg, err := postgres.NewPool(ctx, conf.Modules.NodeSale.Postgres)
+	if err != nil {
+		return nil, fmt.Errorf("Can't create postgres connection : %w", err)
+	}
+	var cleanupFuncs []func(context.Context) error
+	cleanupFuncs = append(cleanupFuncs, func(ctx context.Context) error {
+		pg.Close()
+		return nil
+	})
+	repository := repository.NewRepository(pg)
+
+	processor := &Processor{
+		NodeSaleDg:       repository,
+		BtcClient:        datasource,
+		Network:          conf.Network,
+		cleanupFuncs:     cleanupFuncs,
+		lastBlockDefault: conf.Modules.NodeSale.LastBlockDefault,
+	}
+
+	httpServer := do.MustInvoke[*fiber.App](injector)
+	nodeSaleHandler := httphandler.New(repository)
+	if err := nodeSaleHandler.Mount(httpServer); err != nil {
+		return nil, fmt.Errorf("Can't mount nodesale API : %w", err)
+	}
+	logger.InfoContext(ctx, "Mounted nodesale HTTP handler")
+
+	indexer := indexer.New(processor, datasource)
+	logger.InfoContext(ctx, "NodeSale module started.")
+	return indexer, nil
+}

modules/nodesale/nodesale_test.go

@@ -0,0 +1,61 @@
+package nodesale
+
+import (
+	"time"
+
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/txscript"
+	"github.com/decred/dcrd/dcrec/secp256k1/v4"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/proto"
+)
+
+var (
+	testBlockHeight uint64 = 101
+	testTxIndex     uint32 = 1
+)
+
+func assembleTestEvent(privateKey *secp256k1.PrivateKey, blockHashHex, txHashHex string, blockHeight uint64, txIndex uint32, message *protobuf.NodeSaleEvent) (NodeSaleEvent, *types.Block) {
+	blockHash, _ := chainhash.NewHashFromStr(blockHashHex)
+	txHash, _ := chainhash.NewHashFromStr(txHashHex)
+
+	rawData, _ := proto.Marshal(message)
+
+	builder := txscript.NewScriptBuilder()
+	builder.AddOp(txscript.OP_FALSE)
+	builder.AddOp(txscript.OP_IF)
+	builder.AddData(rawData)
+	builder.AddOp(txscript.OP_ENDIF)
+
+	messageJson, _ := protojson.Marshal(message)
+
+	if blockHeight == 0 {
+		blockHeight = testBlockHeight
+		testBlockHeight++
+	}
+	if txIndex == 0 {
+		txIndex = testTxIndex
+		testTxIndex++
+	}
+
+	event := NodeSaleEvent{
+		Transaction: &types.Transaction{
+			BlockHeight: int64(blockHeight),
+			BlockHash:   *blockHash,
+			Index:       uint32(txIndex),
+			TxHash:      *txHash,
+		},
+		RawData:      rawData,
+		EventMessage: message,
+		EventJson:    messageJson,
+		TxPubkey:     privateKey.PubKey(),
+	}
+	block := &types.Block{
+		Header: types.BlockHeader{
+			Timestamp: time.Now().UTC(),
+		},
+	}
+	return event, block
+}

modules/nodesale/processor.go

@@ -0,0 +1,303 @@
+package nodesale
+
+import (
+	"bytes"
+	"context"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/txscript"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/core/indexer"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/pkg/logger"
+	"github.com/gaze-network/indexer-network/pkg/logger/slogx"
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/proto"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/core/datasources"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+)
+
+type NodeSaleEvent struct {
+	Transaction  *types.Transaction
+	EventMessage *protobuf.NodeSaleEvent
+	EventJson    []byte
+	TxPubkey     *btcec.PublicKey
+	RawData      []byte
+	InputValue   uint64
+}
+
+func NewProcessor(repository datagateway.NodeSaleDataGateway,
+	datasource *datasources.BitcoinNodeDatasource,
+	network common.Network,
+	cleanupFuncs []func(context.Context) error,
+	lastBlockDefault int64,
+) *Processor {
+	return &Processor{
+		NodeSaleDg:       repository,
+		BtcClient:        datasource,
+		Network:          network,
+		cleanupFuncs:     cleanupFuncs,
+		lastBlockDefault: lastBlockDefault,
+	}
+}
+
+func (p *Processor) Shutdown(ctx context.Context) error {
+	for _, cleanupFunc := range p.cleanupFuncs {
+		err := cleanupFunc(ctx)
+		if err != nil {
+			return errors.Wrap(err, "cleanup function error")
+		}
+	}
+	return nil
+}
+
+type Processor struct {
+	NodeSaleDg       datagateway.NodeSaleDataGateway
+	BtcClient        *datasources.BitcoinNodeDatasource
+	Network          common.Network
+	cleanupFuncs     []func(context.Context) error
+	lastBlockDefault int64
+}
+
+// CurrentBlock implements indexer.Processor.
+func (p *Processor) CurrentBlock(ctx context.Context) (types.BlockHeader, error) {
+	block, err := p.NodeSaleDg.GetLastProcessedBlock(ctx)
+	if err != nil {
+		logger.InfoContext(ctx, "Couldn't get last processed block. Start from NODESALE_LAST_BLOCK_DEFAULT.",
+			slogx.Int64("currentBlock", p.lastBlockDefault))
+		header, err := p.BtcClient.GetBlockHeader(ctx, p.lastBlockDefault)
+		if err != nil {
+			return types.BlockHeader{}, errors.Wrap(err, "Cannot get default block from bitcoin node")
+		}
+		return types.BlockHeader{
+			Hash:   header.Hash,
+			Height: p.lastBlockDefault,
+		}, nil
+	}
+
+	hash, err := chainhash.NewHashFromStr(block.BlockHash)
+	if err != nil {
+		logger.PanicContext(ctx, "Invalid hash format found in Database.")
+	}
+	return types.BlockHeader{
+		Hash:   *hash,
+		Height: block.BlockHeight,
+	}, nil
+}
+
+// GetIndexedBlock implements indexer.Processor.
+func (p *Processor) GetIndexedBlock(ctx context.Context, height int64) (types.BlockHeader, error) {
+	block, err := p.NodeSaleDg.GetBlock(ctx, height)
+	if err != nil {
+		return types.BlockHeader{}, errors.Wrapf(err, "Block %d not found", height)
+	}
+	hash, err := chainhash.NewHashFromStr(block.BlockHash)
+	if err != nil {
+		logger.PanicContext(ctx, "Invalid hash format found in Database.")
+	}
+	return types.BlockHeader{
+		Hash:   *hash,
+		Height: block.BlockHeight,
+	}, nil
+}
+
+// Name implements indexer.Processor.
+func (p *Processor) Name() string {
+	return "nodesale"
+}
+
+func extractNodeSaleData(witness [][]byte) (data []byte, internalPubkey *btcec.PublicKey, isNodeSale bool) {
+	tokenizer, controlBlock, isTapScript := extractTapScript(witness)
+	if !isTapScript {
+		return []byte{}, nil, false
+	}
+	state := 0
+	for tokenizer.Next() {
+		switch state {
+		case 0:
+			if tokenizer.Opcode() == txscript.OP_0 {
+				state++
+			} else {
+				state = 0
+			}
+		case 1:
+			if tokenizer.Opcode() == txscript.OP_IF {
+				state++
+			} else {
+				state = 0
+			}
+		case 2:
+			if tokenizer.Opcode() == txscript.OP_DATA_4 &&
+				bytes.Equal(tokenizer.Data(), NODESALE_MAGIC) {
+				state++
+			} else {
+				state = 0
+			}
+		case 3:
+			// Any instruction > txscript.OP_16 is not push data. Note: txscript.OP_PUSHDATAX < txscript.OP_16
+			if tokenizer.Opcode() <= txscript.OP_16 {
+				data := tokenizer.Data()
+				return data, controlBlock.InternalKey, true
+			}
+			state = 0
+		}
+	}
+	return []byte{}, nil, false
+}
+
+func (p *Processor) parseTransactions(ctx context.Context, transactions []*types.Transaction) ([]NodeSaleEvent, error) {
+	var events []NodeSaleEvent
+	for _, t := range transactions {
+		for _, txIn := range t.TxIn {
+			data, txPubkey, isNodeSale := extractNodeSaleData(txIn.Witness)
+			if !isNodeSale {
+				continue
+			}
+
+			event := &protobuf.NodeSaleEvent{}
+			err := proto.Unmarshal(data, event)
+			if err != nil {
+				logger.WarnContext(ctx, "Invalid Protobuf",
+					slogx.String("block_hash", t.BlockHash.String()),
+					slogx.Int("txIndex", int(t.Index)))
+				continue
+			}
+			eventJson, err := protojson.Marshal(event)
+			if err != nil {
+				return []NodeSaleEvent{}, errors.Wrap(err, "Failed to parse protobuf to json")
+			}
+
+			prevTx, _, err := p.BtcClient.GetRawTransactionAndHeightByTxHash(ctx, txIn.PreviousOutTxHash)
+			if err != nil {
+				return nil, errors.Wrap(err, "Failed to get Previous transaction data")
+			}
+
+			if txIn.PreviousOutIndex >= uint32(len(prevTx.TxOut)) {
+				return nil, errors.Wrap(err, "Invalid previous transaction from bitcoin")
+			}
+
+			events = append(events, NodeSaleEvent{
+				Transaction:  t,
+				EventMessage: event,
+				EventJson:    eventJson,
+				RawData:      data,
+				TxPubkey:     txPubkey,
+				InputValue:   uint64(prevTx.TxOut[txIn.PreviousOutIndex].Value),
+			})
+		}
+	}
+	return events, nil
+}
+
+// Process implements indexer.Processor.
+func (p *Processor) Process(ctx context.Context, inputs []*types.Block) error {
+	for _, block := range inputs {
+		logger.InfoContext(ctx, "NodeSale processing a block",
+			slogx.Int64("block", block.Header.Height),
+			slogx.Stringer("hash", block.Header.Hash))
+		// parse all event from each transaction including reading tx wallet
+		events, err := p.parseTransactions(ctx, block.Transactions)
+		if err != nil {
+			return errors.Wrap(err, "Invalid data from bitcoin client")
+		}
+		// open transaction
+		qtx, err := p.NodeSaleDg.BeginNodeSaleTx(ctx)
+		if err != nil {
+			return errors.Wrap(err, "Failed to create transaction")
+		}
+		defer func() {
+			err = qtx.Rollback(ctx)
+			if err != nil {
+				logger.PanicContext(ctx, "Failed to rollback db")
+			}
+		}()
+
+		// write block
+		err = qtx.CreateBlock(ctx, entity.Block{
+			BlockHeight: block.Header.Height,
+			BlockHash:   block.Header.Hash.String(),
+			Module:      p.Name(),
+		})
+		if err != nil {
+			return errors.Wrapf(err, "Failed to add block %d", block.Header.Height)
+		}
+		// for each events
+		for _, event := range events {
+			logger.InfoContext(ctx, "NodeSale processing event",
+				slogx.Uint32("txIndex", event.Transaction.Index),
+				slogx.Int64("blockHeight", block.Header.Height),
+				slogx.Stringer("blockhash", block.Header.Hash),
+			)
+			eventMessage := event.EventMessage
+			switch eventMessage.Action {
+			case protobuf.Action_ACTION_DEPLOY:
+				err = p.ProcessDeploy(ctx, qtx, block, event)
+				if err != nil {
+					return errors.Wrapf(err, "Failed to deploy at block %d", block.Header.Height)
+				}
+			case protobuf.Action_ACTION_DELEGATE:
+				err = p.ProcessDelegate(ctx, qtx, block, event)
+				if err != nil {
+					return errors.Wrapf(err, "Failed to delegate at block %d", block.Header.Height)
+				}
+			case protobuf.Action_ACTION_PURCHASE:
+				err = p.ProcessPurchase(ctx, qtx, block, event)
+				if err != nil {
+					return errors.Wrapf(err, "Failed to purchase at block %d", block.Header.Height)
+				}
+			default:
+				logger.DebugContext(ctx, "Invalid event ACTION", slogx.Stringer("txHash", (event.Transaction.TxHash)))
+			}
+		}
+		// close transaction
+		err = qtx.Commit(ctx)
+		if err != nil {
+			return errors.Wrap(err, "Failed to commit transaction")
+		}
+		logger.InfoContext(ctx, "NodeSale finished processing block",
+			slogx.Int64("block", block.Header.Height),
+			slogx.Stringer("hash", block.Header.Hash))
+	}
+	return nil
+}
+
+// RevertData implements indexer.Processor.
+func (p *Processor) RevertData(ctx context.Context, from int64) error {
+	qtx, err := p.NodeSaleDg.BeginNodeSaleTx(ctx)
+	if err != nil {
+		return errors.Wrap(err, "Failed to create transaction")
+	}
+	defer func() { err = qtx.Rollback(ctx) }()
+	_, err = qtx.RemoveBlockFrom(ctx, from)
+	if err != nil {
+		return errors.Wrap(err, "Failed to remove blocks.")
+	}
+
+	affected, err := qtx.RemoveEventsFromBlock(ctx, from)
+	if err != nil {
+		return errors.Wrap(err, "Failed to remove events.")
+	}
+	_, err = qtx.ClearDelegate(ctx)
+	if err != nil {
+		return errors.Wrap(err, "Failed to clear delegate from nodes")
+	}
+	err = qtx.Commit(ctx)
+	if err != nil {
+		return errors.Wrap(err, "Failed to commit transaction")
+	}
+	logger.InfoContext(ctx, "Events removed",
+		slogx.Int64("Total removed", affected))
+	return nil
+}
+
+// VerifyStates implements indexer.Processor.
+func (p *Processor) VerifyStates(ctx context.Context) error {
+	panic("unimplemented")
+}
+
+var _ indexer.Processor[*types.Block] = (*Processor)(nil)

modules/nodesale/protobuf/nodesale.pb.go

@@ -0,0 +1,806 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.34.1
+// 	protoc        v5.26.1
+// source: modules/nodesale/protobuf/nodesale.proto
+
+// protoc modules/nodesale/protobuf/nodesale.proto --go_out=. --go_opt=module=github.com/gaze-network/indexer-network
+
+package protobuf
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Action int32
+
+const (
+	Action_ACTION_DEPLOY   Action = 0
+	Action_ACTION_PURCHASE Action = 1
+	Action_ACTION_DELEGATE Action = 2
+)
+
+// Enum value maps for Action.
+var (
+	Action_name = map[int32]string{
+		0: "ACTION_DEPLOY",
+		1: "ACTION_PURCHASE",
+		2: "ACTION_DELEGATE",
+	}
+	Action_value = map[string]int32{
+		"ACTION_DEPLOY":   0,
+		"ACTION_PURCHASE": 1,
+		"ACTION_DELEGATE": 2,
+	}
+)
+
+func (x Action) Enum() *Action {
+	p := new(Action)
+	*p = x
+	return p
+}
+
+func (x Action) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Action) Descriptor() protoreflect.EnumDescriptor {
+	return file_modules_nodesale_protobuf_nodesale_proto_enumTypes[0].Descriptor()
+}
+
+func (Action) Type() protoreflect.EnumType {
+	return &file_modules_nodesale_protobuf_nodesale_proto_enumTypes[0]
+}
+
+func (x Action) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Action.Descriptor instead.
+func (Action) EnumDescriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{0}
+}
+
+type NodeSaleEvent struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Action   Action          `protobuf:"varint,1,opt,name=action,proto3,enum=nodesale.Action" json:"action,omitempty"`
+	Deploy   *ActionDeploy   `protobuf:"bytes,2,opt,name=deploy,proto3,oneof" json:"deploy,omitempty"`
+	Purchase *ActionPurchase `protobuf:"bytes,3,opt,name=purchase,proto3,oneof" json:"purchase,omitempty"`
+	Delegate *ActionDelegate `protobuf:"bytes,4,opt,name=delegate,proto3,oneof" json:"delegate,omitempty"`
+}
+
+func (x *NodeSaleEvent) Reset() {
+	*x = NodeSaleEvent{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *NodeSaleEvent) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*NodeSaleEvent) ProtoMessage() {}
+
+func (x *NodeSaleEvent) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use NodeSaleEvent.ProtoReflect.Descriptor instead.
+func (*NodeSaleEvent) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *NodeSaleEvent) GetAction() Action {
+	if x != nil {
+		return x.Action
+	}
+	return Action_ACTION_DEPLOY
+}
+
+func (x *NodeSaleEvent) GetDeploy() *ActionDeploy {
+	if x != nil {
+		return x.Deploy
+	}
+	return nil
+}
+
+func (x *NodeSaleEvent) GetPurchase() *ActionPurchase {
+	if x != nil {
+		return x.Purchase
+	}
+	return nil
+}
+
+func (x *NodeSaleEvent) GetDelegate() *ActionDelegate {
+	if x != nil {
+		return x.Delegate
+	}
+	return nil
+}
+
+type ActionDeploy struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name                  string  `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	StartsAt              uint32  `protobuf:"varint,2,opt,name=startsAt,proto3" json:"startsAt,omitempty"`
+	EndsAt                uint32  `protobuf:"varint,3,opt,name=endsAt,proto3" json:"endsAt,omitempty"`
+	Tiers                 []*Tier `protobuf:"bytes,4,rep,name=tiers,proto3" json:"tiers,omitempty"`
+	SellerPublicKey       string  `protobuf:"bytes,5,opt,name=sellerPublicKey,proto3" json:"sellerPublicKey,omitempty"`
+	MaxPerAddress         uint32  `protobuf:"varint,6,opt,name=maxPerAddress,proto3" json:"maxPerAddress,omitempty"`
+	MaxDiscountPercentage uint32  `protobuf:"varint,7,opt,name=maxDiscountPercentage,proto3" json:"maxDiscountPercentage,omitempty"`
+	SellerWallet          string  `protobuf:"bytes,8,opt,name=sellerWallet,proto3" json:"sellerWallet,omitempty"`
+}
+
+func (x *ActionDeploy) Reset() {
+	*x = ActionDeploy{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ActionDeploy) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActionDeploy) ProtoMessage() {}
+
+func (x *ActionDeploy) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActionDeploy.ProtoReflect.Descriptor instead.
+func (*ActionDeploy) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *ActionDeploy) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *ActionDeploy) GetStartsAt() uint32 {
+	if x != nil {
+		return x.StartsAt
+	}
+	return 0
+}
+
+func (x *ActionDeploy) GetEndsAt() uint32 {
+	if x != nil {
+		return x.EndsAt
+	}
+	return 0
+}
+
+func (x *ActionDeploy) GetTiers() []*Tier {
+	if x != nil {
+		return x.Tiers
+	}
+	return nil
+}
+
+func (x *ActionDeploy) GetSellerPublicKey() string {
+	if x != nil {
+		return x.SellerPublicKey
+	}
+	return ""
+}
+
+func (x *ActionDeploy) GetMaxPerAddress() uint32 {
+	if x != nil {
+		return x.MaxPerAddress
+	}
+	return 0
+}
+
+func (x *ActionDeploy) GetMaxDiscountPercentage() uint32 {
+	if x != nil {
+		return x.MaxDiscountPercentage
+	}
+	return 0
+}
+
+func (x *ActionDeploy) GetSellerWallet() string {
+	if x != nil {
+		return x.SellerWallet
+	}
+	return ""
+}
+
+type Tier struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	PriceSat      uint32 `protobuf:"varint,1,opt,name=priceSat,proto3" json:"priceSat,omitempty"`
+	Limit         uint32 `protobuf:"varint,2,opt,name=limit,proto3" json:"limit,omitempty"`
+	MaxPerAddress uint32 `protobuf:"varint,3,opt,name=maxPerAddress,proto3" json:"maxPerAddress,omitempty"`
+}
+
+func (x *Tier) Reset() {
+	*x = Tier{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Tier) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Tier) ProtoMessage() {}
+
+func (x *Tier) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Tier.ProtoReflect.Descriptor instead.
+func (*Tier) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Tier) GetPriceSat() uint32 {
+	if x != nil {
+		return x.PriceSat
+	}
+	return 0
+}
+
+func (x *Tier) GetLimit() uint32 {
+	if x != nil {
+		return x.Limit
+	}
+	return 0
+}
+
+func (x *Tier) GetMaxPerAddress() uint32 {
+	if x != nil {
+		return x.MaxPerAddress
+	}
+	return 0
+}
+
+type ActionPurchase struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Payload         *PurchasePayload `protobuf:"bytes,1,opt,name=payload,proto3" json:"payload,omitempty"`
+	SellerSignature string           `protobuf:"bytes,2,opt,name=sellerSignature,proto3" json:"sellerSignature,omitempty"`
+}
+
+func (x *ActionPurchase) Reset() {
+	*x = ActionPurchase{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ActionPurchase) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActionPurchase) ProtoMessage() {}
+
+func (x *ActionPurchase) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActionPurchase.ProtoReflect.Descriptor instead.
+func (*ActionPurchase) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *ActionPurchase) GetPayload() *PurchasePayload {
+	if x != nil {
+		return x.Payload
+	}
+	return nil
+}
+
+func (x *ActionPurchase) GetSellerSignature() string {
+	if x != nil {
+		return x.SellerSignature
+	}
+	return ""
+}
+
+type PurchasePayload struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	DeployID       *ActionID `protobuf:"bytes,1,opt,name=deployID,proto3" json:"deployID,omitempty"`
+	BuyerPublicKey string    `protobuf:"bytes,2,opt,name=buyerPublicKey,proto3" json:"buyerPublicKey,omitempty"`
+	NodeIDs        []uint32  `protobuf:"varint,3,rep,packed,name=nodeIDs,proto3" json:"nodeIDs,omitempty"`
+	TotalAmountSat int64     `protobuf:"varint,4,opt,name=totalAmountSat,proto3" json:"totalAmountSat,omitempty"`
+	TimeOutBlock   uint64    `protobuf:"varint,5,opt,name=timeOutBlock,proto3" json:"timeOutBlock,omitempty"`
+}
+
+func (x *PurchasePayload) Reset() {
+	*x = PurchasePayload{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PurchasePayload) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PurchasePayload) ProtoMessage() {}
+
+func (x *PurchasePayload) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PurchasePayload.ProtoReflect.Descriptor instead.
+func (*PurchasePayload) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *PurchasePayload) GetDeployID() *ActionID {
+	if x != nil {
+		return x.DeployID
+	}
+	return nil
+}
+
+func (x *PurchasePayload) GetBuyerPublicKey() string {
+	if x != nil {
+		return x.BuyerPublicKey
+	}
+	return ""
+}
+
+func (x *PurchasePayload) GetNodeIDs() []uint32 {
+	if x != nil {
+		return x.NodeIDs
+	}
+	return nil
+}
+
+func (x *PurchasePayload) GetTotalAmountSat() int64 {
+	if x != nil {
+		return x.TotalAmountSat
+	}
+	return 0
+}
+
+func (x *PurchasePayload) GetTimeOutBlock() uint64 {
+	if x != nil {
+		return x.TimeOutBlock
+	}
+	return 0
+}
+
+type ActionID struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Block   uint64 `protobuf:"varint,1,opt,name=block,proto3" json:"block,omitempty"`
+	TxIndex uint32 `protobuf:"varint,2,opt,name=txIndex,proto3" json:"txIndex,omitempty"`
+}
+
+func (x *ActionID) Reset() {
+	*x = ActionID{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ActionID) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActionID) ProtoMessage() {}
+
+func (x *ActionID) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActionID.ProtoReflect.Descriptor instead.
+func (*ActionID) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *ActionID) GetBlock() uint64 {
+	if x != nil {
+		return x.Block
+	}
+	return 0
+}
+
+func (x *ActionID) GetTxIndex() uint32 {
+	if x != nil {
+		return x.TxIndex
+	}
+	return 0
+}
+
+type ActionDelegate struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	DelegateePublicKey string    `protobuf:"bytes,1,opt,name=delegateePublicKey,proto3" json:"delegateePublicKey,omitempty"`
+	NodeIDs            []uint32  `protobuf:"varint,2,rep,packed,name=nodeIDs,proto3" json:"nodeIDs,omitempty"`
+	DeployID           *ActionID `protobuf:"bytes,3,opt,name=deployID,proto3" json:"deployID,omitempty"`
+}
+
+func (x *ActionDelegate) Reset() {
+	*x = ActionDelegate{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ActionDelegate) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ActionDelegate) ProtoMessage() {}
+
+func (x *ActionDelegate) ProtoReflect() protoreflect.Message {
+	mi := &file_modules_nodesale_protobuf_nodesale_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ActionDelegate.ProtoReflect.Descriptor instead.
+func (*ActionDelegate) Descriptor() ([]byte, []int) {
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *ActionDelegate) GetDelegateePublicKey() string {
+	if x != nil {
+		return x.DelegateePublicKey
+	}
+	return ""
+}
+
+func (x *ActionDelegate) GetNodeIDs() []uint32 {
+	if x != nil {
+		return x.NodeIDs
+	}
+	return nil
+}
+
+func (x *ActionDelegate) GetDeployID() *ActionID {
+	if x != nil {
+		return x.DeployID
+	}
+	return nil
+}
+
+var File_modules_nodesale_protobuf_nodesale_proto protoreflect.FileDescriptor
+
+var file_modules_nodesale_protobuf_nodesale_proto_rawDesc = []byte{
+	0x0a, 0x28, 0x6d, 0x6f, 0x64, 0x75, 0x6c, 0x65, 0x73, 0x2f, 0x6e, 0x6f, 0x64, 0x65, 0x73, 0x61,
+	0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x6e, 0x6f, 0x64, 0x65,
+	0x73, 0x61, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x08, 0x6e, 0x6f, 0x64, 0x65,
+	0x73, 0x61, 0x6c, 0x65, 0x22, 0x89, 0x02, 0x0a, 0x0d, 0x4e, 0x6f, 0x64, 0x65, 0x53, 0x61, 0x6c,
+	0x65, 0x45, 0x76, 0x65, 0x6e, 0x74, 0x12, 0x28, 0x0a, 0x06, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x10, 0x2e, 0x6e, 0x6f, 0x64, 0x65, 0x73, 0x61, 0x6c,
+	0x65, 0x2e, 0x41, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x52, 0x06, 0x61, 0x63, 0x74, 0x69, 0x6f, 0x6e,
+	0x12, 0x33, 0x0a, 0x06, 0x64, 0x65, 0x70, 0x6c, 0x6f, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b,
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+	0x66, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_modules_nodesale_protobuf_nodesale_proto_rawDescOnce sync.Once
+	file_modules_nodesale_protobuf_nodesale_proto_rawDescData = file_modules_nodesale_protobuf_nodesale_proto_rawDesc
+)
+
+func file_modules_nodesale_protobuf_nodesale_proto_rawDescGZIP() []byte {
+	file_modules_nodesale_protobuf_nodesale_proto_rawDescOnce.Do(func() {
+		file_modules_nodesale_protobuf_nodesale_proto_rawDescData = protoimpl.X.CompressGZIP(file_modules_nodesale_protobuf_nodesale_proto_rawDescData)
+	})
+	return file_modules_nodesale_protobuf_nodesale_proto_rawDescData
+}
+
+var file_modules_nodesale_protobuf_nodesale_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_modules_nodesale_protobuf_nodesale_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_modules_nodesale_protobuf_nodesale_proto_goTypes = []interface{}{
+	(Action)(0),             // 0: nodesale.Action
+	(*NodeSaleEvent)(nil),   // 1: nodesale.NodeSaleEvent
+	(*ActionDeploy)(nil),    // 2: nodesale.ActionDeploy
+	(*Tier)(nil),            // 3: nodesale.Tier
+	(*ActionPurchase)(nil),  // 4: nodesale.ActionPurchase
+	(*PurchasePayload)(nil), // 5: nodesale.PurchasePayload
+	(*ActionID)(nil),        // 6: nodesale.ActionID
+	(*ActionDelegate)(nil),  // 7: nodesale.ActionDelegate
+}
+var file_modules_nodesale_protobuf_nodesale_proto_depIdxs = []int32{
+	0, // 0: nodesale.NodeSaleEvent.action:type_name -> nodesale.Action
+	2, // 1: nodesale.NodeSaleEvent.deploy:type_name -> nodesale.ActionDeploy
+	4, // 2: nodesale.NodeSaleEvent.purchase:type_name -> nodesale.ActionPurchase
+	7, // 3: nodesale.NodeSaleEvent.delegate:type_name -> nodesale.ActionDelegate
+	3, // 4: nodesale.ActionDeploy.tiers:type_name -> nodesale.Tier
+	5, // 5: nodesale.ActionPurchase.payload:type_name -> nodesale.PurchasePayload
+	6, // 6: nodesale.PurchasePayload.deployID:type_name -> nodesale.ActionID
+	6, // 7: nodesale.ActionDelegate.deployID:type_name -> nodesale.ActionID
+	8, // [8:8] is the sub-list for method output_type
+	8, // [8:8] is the sub-list for method input_type
+	8, // [8:8] is the sub-list for extension type_name
+	8, // [8:8] is the sub-list for extension extendee
+	0, // [0:8] is the sub-list for field type_name
+}
+
+func init() { file_modules_nodesale_protobuf_nodesale_proto_init() }
+func file_modules_nodesale_protobuf_nodesale_proto_init() {
+	if File_modules_nodesale_protobuf_nodesale_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*NodeSaleEvent); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ActionDeploy); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Tier); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ActionPurchase); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PurchasePayload); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ActionID); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_modules_nodesale_protobuf_nodesale_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ActionDelegate); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_modules_nodesale_protobuf_nodesale_proto_msgTypes[0].OneofWrappers = []interface{}{}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_modules_nodesale_protobuf_nodesale_proto_rawDesc,
+			NumEnums:      1,
+			NumMessages:   7,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_modules_nodesale_protobuf_nodesale_proto_goTypes,
+		DependencyIndexes: file_modules_nodesale_protobuf_nodesale_proto_depIdxs,
+		EnumInfos:         file_modules_nodesale_protobuf_nodesale_proto_enumTypes,
+		MessageInfos:      file_modules_nodesale_protobuf_nodesale_proto_msgTypes,
+	}.Build()
+	File_modules_nodesale_protobuf_nodesale_proto = out.File
+	file_modules_nodesale_protobuf_nodesale_proto_rawDesc = nil
+	file_modules_nodesale_protobuf_nodesale_proto_goTypes = nil
+	file_modules_nodesale_protobuf_nodesale_proto_depIdxs = nil
+}

modules/nodesale/protobuf/nodesale.proto

@@ -0,0 +1,60 @@
+syntax = "proto3";
+
+// protoc modules/nodesale/protobuf/nodesale.proto --go_out=. --go_opt=module=github.com/gaze-network/indexer-network
+
+package nodesale;
+option go_package = "github.com/gaze-network/indexer-network/modules/nodesale/protobuf";
+
+enum Action {
+  ACTION_DEPLOY = 0;
+  ACTION_PURCHASE = 1;
+  ACTION_DELEGATE = 2;
+}
+
+message NodeSaleEvent {
+	Action action = 1;
+	optional ActionDeploy deploy = 2;
+	optional ActionPurchase purchase = 3;
+	optional ActionDelegate delegate = 4;
+}
+
+message ActionDeploy {
+	string name = 1;
+	uint32 startsAt = 2;
+	uint32 endsAt = 3;
+	repeated Tier tiers = 4;
+	string sellerPublicKey = 5;
+	uint32 maxPerAddress = 6;
+	uint32 maxDiscountPercentage = 7;
+	string sellerWallet = 8;
+}
+
+message Tier {
+	uint32 priceSat = 1;
+	uint32 limit = 2;
+	uint32 maxPerAddress = 3;
+}
+
+message ActionPurchase {
+	PurchasePayload payload = 1;
+	string sellerSignature = 2;
+}
+
+message PurchasePayload {
+	ActionID deployID = 1;
+	string buyerPublicKey = 2;
+	repeated uint32 nodeIDs = 3;
+	int64 totalAmountSat = 4;
+	uint64 timeOutBlock = 5;
+}
+
+message ActionID {
+	uint64 block = 1;
+	uint32 txIndex = 2;
+}
+
+message ActionDelegate {
+	string delegateePublicKey = 1;
+	repeated uint32 nodeIDs = 2;
+	ActionID deployID = 3;
+}

modules/nodesale/pubkeyaddr.go

@@ -0,0 +1,12 @@
+package nodesale
+
+import (
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/btcsuite/btcd/btcutil"
+)
+
+func (p *Processor) PubkeyToPkHashAddress(pubKey *btcec.PublicKey) btcutil.Address {
+	addrPubKey, _ := btcutil.NewAddressPubKey(pubKey.SerializeCompressed(), p.Network.ChainParams())
+	addrPubKeyHash := addrPubKey.AddressPubKeyHash()
+	return addrPubKeyHash
+}

modules/nodesale/purchase.go

@@ -0,0 +1,87 @@
+package nodesale
+
+import (
+	"context"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/core/types"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	purchasevalidator "github.com/gaze-network/indexer-network/modules/nodesale/internal/validator/purchase"
+)
+
+func (p *Processor) ProcessPurchase(ctx context.Context, qtx datagateway.NodeSaleDataGatewayWithTx, block *types.Block, event NodeSaleEvent) error {
+	purchase := event.EventMessage.Purchase
+	payload := purchase.Payload
+
+	validator := purchasevalidator.New()
+
+	validator.EqualXonlyPublicKey(payload.BuyerPublicKey, event.TxPubkey)
+
+	_, deploy, err := validator.NodeSaleExists(ctx, qtx, payload)
+	if err != nil {
+		return errors.Wrap(err, "cannot query. Something wrong.")
+	}
+
+	validator.ValidTimestamp(deploy, block.Header.Timestamp)
+	validator.WithinTimeoutBlock(payload.TimeOutBlock, uint64(event.Transaction.BlockHeight))
+
+	validator.VerifySignature(purchase, deploy)
+
+	_, tierMap := validator.ValidTiers(payload, deploy)
+
+	tiers := tierMap.Tiers
+	buyingTiersCount := tierMap.BuyingTiersCount
+	nodeIdToTier := tierMap.NodeIdToTier
+
+	_, err = validator.ValidUnpurchasedNodes(ctx, qtx, payload)
+	if err != nil {
+		return errors.Wrap(err, "cannot query. Something wrong.")
+	}
+
+	_, meta := validator.ValidPaidAmount(payload, deploy, event.InputValue, tiers, buyingTiersCount, p.Network.ChainParams())
+
+	_, err = validator.WithinLimit(ctx, qtx, payload, deploy, tiers, buyingTiersCount)
+	if err != nil {
+		return errors.Wrap(err, "cannot query. Something wrong.")
+	}
+
+	err = qtx.CreateEvent(ctx, entity.NodeSaleEvent{
+		TxHash:         event.Transaction.TxHash.String(),
+		TxIndex:        int32(event.Transaction.Index),
+		Action:         int32(event.EventMessage.Action),
+		RawMessage:     event.RawData,
+		ParsedMessage:  event.EventJson,
+		BlockTimestamp: block.Header.Timestamp,
+		BlockHash:      event.Transaction.BlockHash.String(),
+		BlockHeight:    event.Transaction.BlockHeight,
+		Valid:          validator.Valid,
+		WalletAddress:  p.PubkeyToPkHashAddress(event.TxPubkey).EncodeAddress(),
+		Metadata:       meta,
+		Reason:         validator.Reason,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Failed to insert event")
+	}
+
+	if validator.Valid {
+		// add to node
+		for _, nodeId := range payload.NodeIDs {
+			err := qtx.CreateNode(ctx, entity.Node{
+				SaleBlock:      deploy.BlockHeight,
+				SaleTxIndex:    deploy.TxIndex,
+				NodeID:         nodeId,
+				TierIndex:      nodeIdToTier[nodeId],
+				DelegatedTo:    "",
+				OwnerPublicKey: payload.BuyerPublicKey,
+				PurchaseTxHash: event.Transaction.TxHash.String(),
+				DelegateTxHash: "",
+			})
+			if err != nil {
+				return errors.Wrap(err, "Failed to insert node")
+			}
+		}
+	}
+
+	return nil
+}

modules/nodesale/purchase_test.go

@@ -0,0 +1,902 @@
+package nodesale
+
+import (
+	"context"
+	"encoding/hex"
+	"testing"
+	"time"
+
+	"github.com/btcsuite/btcd/btcec/v2"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/decred/dcrd/dcrec/secp256k1/v4/ecdsa"
+	"github.com/gaze-network/indexer-network/common"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway/mocks"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/validator"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/validator/purchase"
+	"github.com/gaze-network/indexer-network/modules/nodesale/protobuf"
+	"github.com/samber/lo"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/proto"
+)
+
+func TestInvalidPurchase(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	buyerPrivateKey, err := btcec.NewPrivateKey()
+	require.NoError(t, err)
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload: &protobuf.PurchasePayload{
+				DeployID: &protobuf.ActionID{
+					Block:   111,
+					TxIndex: 1,
+				},
+				NodeIDs:        []uint32{1, 2},
+				BuyerPublicKey: buyerPubkeyHex,
+				TotalAmountSat: 500,
+				TimeOutBlock:   uint64(testBlockHeight) + 5,
+			},
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "030303030303", "030303030303", 0, 0, message)
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, mock.Anything).Return(nil, nil)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false
+	})).Return(nil)
+
+	err = p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNode")
+}
+
+func TestInvalidBuyerKey(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	strangerPrivateKey, _ := btcec.NewPrivateKey()
+	strangerPrivateKeyHex := hex.EncodeToString(strangerPrivateKey.PubKey().SerializeCompressed())
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload: &protobuf.PurchasePayload{
+				DeployID: &protobuf.ActionID{
+					Block:   100,
+					TxIndex: 1,
+				},
+				NodeIDs:        []uint32{1, 2},
+				BuyerPublicKey: strangerPrivateKeyHex,
+				TotalAmountSat: 200,
+				TimeOutBlock:   uint64(testBlockHeight) + 5,
+			},
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "0707070707", "0707070707", 0, 0, message)
+	block.Header.Timestamp = time.Now().UTC()
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == validator.INVALID_PUBKEY
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNode")
+}
+
+func TestInvalidTimestamp(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, err := btcec.NewPrivateKey()
+	require.NoError(t, err)
+
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload: &protobuf.PurchasePayload{
+				DeployID: &protobuf.ActionID{
+					Block:   100,
+					TxIndex: 1,
+				},
+				NodeIDs:        []uint32{1, 2},
+				BuyerPublicKey: buyerPubkeyHex,
+				TotalAmountSat: 200,
+				TimeOutBlock:   uint64(testBlockHeight) + 5,
+			},
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "050505050505", "050505050505", 0, 0, message)
+
+	block.Header.Timestamp = time.Now().UTC().Add(time.Hour * 2)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.PURCHASE_TIMEOUT
+	})).Return(nil)
+
+	err = p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNode")
+}
+
+func TestTimeOut(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload: &protobuf.PurchasePayload{
+				DeployID: &protobuf.ActionID{
+					Block:   100,
+					TxIndex: 1,
+				},
+				NodeIDs:        []uint32{1, 2},
+				BuyerPublicKey: buyerPubkeyHex,
+				TimeOutBlock:   uint64(testBlockHeight) - 5,
+				TotalAmountSat: 200,
+			},
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "090909090909", "090909090909", 0, 0, message)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.BLOCK_HEIGHT_TIMEOUT
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNode")
+}
+
+func TestSignatureInvalid(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	payload := &protobuf.PurchasePayload{
+		DeployID: &protobuf.ActionID{
+			Block:   100,
+			TxIndex: 1,
+		},
+		NodeIDs:        []uint32{1, 2},
+		BuyerPublicKey: buyerPubkeyHex,
+		TimeOutBlock:   testBlockHeight + 5,
+	}
+
+	payloadBytes, _ := proto.Marshal(payload)
+	payloadHash := chainhash.DoubleHashB(payloadBytes)
+	signature := ecdsa.Sign(buyerPrivateKey, payloadHash[:])
+	signatureHex := hex.EncodeToString(signature.Serialize())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload:         payload,
+			SellerSignature: signatureHex,
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "0B0B0B", "0B0B0B", 0, 0, message)
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.INVALID_SIGNATURE
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNode")
+}
+
+func TestValidPurchase(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         4,
+			MaxPerAddress: 2,
+		},
+		{
+			PriceSat:      400,
+			Limit:         3,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	mockDgTx.EXPECT().GetNodesByIds(mock.Anything, mock.Anything).Return(nil, nil)
+
+	mockDgTx.EXPECT().GetNodesByOwner(mock.Anything, mock.Anything).Return(nil, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	payload := &protobuf.PurchasePayload{
+		DeployID: &protobuf.ActionID{
+			Block:   100,
+			TxIndex: 1,
+		},
+		BuyerPublicKey: buyerPubkeyHex,
+		TimeOutBlock:   uint64(testBlockHeight) + 5,
+		NodeIDs:        []uint32{0, 5, 6, 9},
+		TotalAmountSat: 500,
+	}
+
+	payloadBytes, _ := proto.Marshal(payload)
+	payloadHash := chainhash.DoubleHashB(payloadBytes)
+	signature := ecdsa.Sign(sellerPrivateKey, payloadHash[:])
+	signatureHex := hex.EncodeToString(signature.Serialize())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload:         payload,
+			SellerSignature: signatureHex,
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "0D0D0D0D", "0D0D0D0D", 0, 0, message)
+	event.InputValue = 500
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == true && event.Reason == ""
+	})).Return(nil)
+
+	mockDgTx.EXPECT().CreateNode(mock.Anything, mock.MatchedBy(func(node entity.Node) bool {
+		return node.NodeID == 0 &&
+			node.TierIndex == 0 &&
+			node.OwnerPublicKey == buyerPubkeyHex &&
+			node.PurchaseTxHash == event.Transaction.TxHash.String() &&
+			node.SaleBlock == 100 &&
+			node.SaleTxIndex == 1
+	})).Return(nil)
+
+	mockDgTx.EXPECT().CreateNode(mock.Anything, mock.MatchedBy(func(node entity.Node) bool {
+		return node.NodeID == 5 &&
+			node.TierIndex == 1 &&
+			node.OwnerPublicKey == buyerPubkeyHex &&
+			node.PurchaseTxHash == event.Transaction.TxHash.String() &&
+			node.SaleBlock == 100 &&
+			node.SaleTxIndex == 1
+	})).Return(nil)
+
+	mockDgTx.EXPECT().CreateNode(mock.Anything, mock.MatchedBy(func(node entity.Node) bool {
+		return node.NodeID == 6 &&
+			node.TierIndex == 1 &&
+			node.OwnerPublicKey == buyerPubkeyHex &&
+			node.PurchaseTxHash == event.Transaction.TxHash.String() &&
+			node.SaleBlock == 100 &&
+			node.SaleTxIndex == 1
+	})).Return(nil)
+
+	mockDgTx.EXPECT().CreateNode(mock.Anything, mock.MatchedBy(func(node entity.Node) bool {
+		return node.NodeID == 9 &&
+			node.TierIndex == 2 &&
+			node.OwnerPublicKey == buyerPubkeyHex &&
+			node.PurchaseTxHash == event.Transaction.TxHash.String() &&
+			node.SaleBlock == 100 &&
+			node.SaleTxIndex == 1
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+}
+
+func TestMismatchPayment(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         4,
+			MaxPerAddress: 2,
+		},
+		{
+			PriceSat:      400,
+			Limit:         3,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	mockDgTx.EXPECT().GetNodesByIds(mock.Anything, mock.Anything).Return(nil, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	payload := &protobuf.PurchasePayload{
+		DeployID: &protobuf.ActionID{
+			Block:   100,
+			TxIndex: 1,
+		},
+		BuyerPublicKey: buyerPubkeyHex,
+		TimeOutBlock:   uint64(testBlockHeight) + 5,
+		NodeIDs:        []uint32{0, 5, 6, 9},
+		TotalAmountSat: 500,
+	}
+
+	payloadBytes, _ := proto.Marshal(payload)
+	payloadHash := chainhash.DoubleHashB(payloadBytes)
+	signature := ecdsa.Sign(sellerPrivateKey, payloadHash[:])
+	signatureHex := hex.EncodeToString(signature.Serialize())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload:         payload,
+			SellerSignature: signatureHex,
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "0D0D0D0D", "0D0D0D0D", 0, 0, message)
+	event.InputValue = 400
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.INVALID_PAYMENT
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+}
+
+func TestInsufficientFund(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         4,
+			MaxPerAddress: 2,
+		},
+		{
+			PriceSat:      400,
+			Limit:         3,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	mockDgTx.EXPECT().GetNodesByIds(mock.Anything, mock.Anything).Return(nil, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	payload := &protobuf.PurchasePayload{
+		DeployID: &protobuf.ActionID{
+			Block:   100,
+			TxIndex: 1,
+		},
+		BuyerPublicKey: buyerPubkeyHex,
+		TimeOutBlock:   uint64(testBlockHeight) + 5,
+		NodeIDs:        []uint32{0, 5, 6, 9},
+		TotalAmountSat: 200,
+	}
+
+	payloadBytes, _ := proto.Marshal(payload)
+	payloadHash := chainhash.DoubleHashB(payloadBytes)
+	signature := ecdsa.Sign(sellerPrivateKey, payloadHash[:])
+	signatureHex := hex.EncodeToString(signature.Serialize())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload:         payload,
+			SellerSignature: signatureHex,
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "0D0D0D0D", "0D0D0D0D", 0, 0, message)
+	event.InputValue = 200
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.INSUFFICIENT_FUND
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+}
+
+func TestBuyingLimit(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         4,
+			MaxPerAddress: 2,
+		},
+		{
+			PriceSat:      400,
+			Limit:         50,
+			MaxPerAddress: 100,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         2,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	mockDgTx.EXPECT().GetNodesByIds(mock.Anything, mock.Anything).Return(nil, nil)
+
+	mockDgTx.EXPECT().GetNodesByOwner(mock.Anything, datagateway.GetNodesByOwnerParams{
+		SaleBlock:      100,
+		SaleTxIndex:    1,
+		OwnerPublicKey: buyerPubkeyHex,
+	}).Return([]entity.Node{
+		{
+			SaleBlock:      100,
+			SaleTxIndex:    1,
+			NodeID:         9,
+			TierIndex:      2,
+			OwnerPublicKey: buyerPubkeyHex,
+		},
+		{
+			SaleBlock:      100,
+			SaleTxIndex:    1,
+			NodeID:         10,
+			TierIndex:      2,
+			OwnerPublicKey: buyerPubkeyHex,
+		},
+	}, nil)
+
+	payload := &protobuf.PurchasePayload{
+		DeployID: &protobuf.ActionID{
+			Block:   100,
+			TxIndex: 1,
+		},
+		BuyerPublicKey: buyerPubkeyHex,
+		TimeOutBlock:   uint64(testBlockHeight) + 5,
+		NodeIDs:        []uint32{11},
+		TotalAmountSat: 600,
+	}
+
+	payloadBytes, _ := proto.Marshal(payload)
+	payloadHash := chainhash.DoubleHashB(payloadBytes)
+	signature := ecdsa.Sign(sellerPrivateKey, payloadHash[:])
+	signatureHex := hex.EncodeToString(signature.Serialize())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload:         payload,
+			SellerSignature: signatureHex,
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "22222222", "22222222", 0, 0, message)
+	event.InputValue = 600
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.OVER_LIMIT_PER_ADDR
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+
+	mockDgTx.AssertNotCalled(t, "CreateNode")
+}
+
+func TestBuyingTierLimit(t *testing.T) {
+	ctx := context.Background()
+	mockDgTx := mocks.NewNodeSaleDataGatewayWithTx(t)
+	p := NewProcessor(mockDgTx, nil, common.NetworkMainnet, nil, 0)
+
+	sellerPrivateKey, _ := btcec.NewPrivateKey()
+	sellerPubkeyHex := hex.EncodeToString(sellerPrivateKey.PubKey().SerializeCompressed())
+	sellerWallet := p.PubkeyToPkHashAddress(sellerPrivateKey.PubKey())
+
+	startAt := time.Now().Add(time.Hour * -1)
+	endAt := time.Now().Add(time.Hour * 1)
+
+	tiers := lo.Map([]*protobuf.Tier{
+		{
+			PriceSat:      100,
+			Limit:         5,
+			MaxPerAddress: 100,
+		},
+		{
+			PriceSat:      200,
+			Limit:         4,
+			MaxPerAddress: 2,
+		},
+		{
+			PriceSat:      400,
+			Limit:         50,
+			MaxPerAddress: 3,
+		},
+	}, func(tier *protobuf.Tier, _ int) []byte {
+		tierJson, err := protojson.Marshal(tier)
+		require.NoError(t, err)
+		return tierJson
+	})
+
+	mockDgTx.EXPECT().GetNodeSale(mock.Anything, datagateway.GetNodeSaleParams{
+		BlockHeight: 100,
+		TxIndex:     1,
+	}).Return([]entity.NodeSale{
+		{
+			BlockHeight:           100,
+			TxIndex:               1,
+			Name:                  t.Name(),
+			StartsAt:              startAt,
+			EndsAt:                endAt,
+			Tiers:                 tiers,
+			SellerPublicKey:       sellerPubkeyHex,
+			MaxPerAddress:         100,
+			DeployTxHash:          "040404040404",
+			MaxDiscountPercentage: 50,
+			SellerWallet:          sellerWallet.EncodeAddress(),
+		},
+	}, nil)
+
+	buyerPrivateKey, _ := btcec.NewPrivateKey()
+	buyerPubkeyHex := hex.EncodeToString(buyerPrivateKey.PubKey().SerializeCompressed())
+
+	mockDgTx.EXPECT().GetNodesByIds(mock.Anything, mock.Anything).Return(nil, nil)
+
+	mockDgTx.EXPECT().GetNodesByOwner(mock.Anything, datagateway.GetNodesByOwnerParams{
+		SaleBlock:      100,
+		SaleTxIndex:    1,
+		OwnerPublicKey: buyerPubkeyHex,
+	}).Return([]entity.Node{
+		{
+			SaleBlock:      100,
+			SaleTxIndex:    1,
+			NodeID:         9,
+			TierIndex:      2,
+			OwnerPublicKey: buyerPubkeyHex,
+		},
+		{
+			SaleBlock:      100,
+			SaleTxIndex:    1,
+			NodeID:         10,
+			TierIndex:      2,
+			OwnerPublicKey: buyerPubkeyHex,
+		},
+		{
+			SaleBlock:      100,
+			SaleTxIndex:    1,
+			NodeID:         11,
+			TierIndex:      2,
+			OwnerPublicKey: buyerPubkeyHex,
+		},
+	}, nil)
+
+	payload := &protobuf.PurchasePayload{
+		DeployID: &protobuf.ActionID{
+			Block:   100,
+			TxIndex: 1,
+		},
+		BuyerPublicKey: buyerPubkeyHex,
+		TimeOutBlock:   uint64(testBlockHeight) + 5,
+		NodeIDs:        []uint32{12, 13, 14},
+		TotalAmountSat: 600,
+	}
+
+	payloadBytes, _ := proto.Marshal(payload)
+	payloadHash := chainhash.DoubleHashB(payloadBytes)
+	signature := ecdsa.Sign(sellerPrivateKey, payloadHash[:])
+	signatureHex := hex.EncodeToString(signature.Serialize())
+
+	message := &protobuf.NodeSaleEvent{
+		Action: protobuf.Action_ACTION_PURCHASE,
+		Purchase: &protobuf.ActionPurchase{
+			Payload:         payload,
+			SellerSignature: signatureHex,
+		},
+	}
+
+	event, block := assembleTestEvent(buyerPrivateKey, "10101010", "10101010", 0, 0, message)
+	event.InputValue = 600
+
+	mockDgTx.EXPECT().CreateEvent(mock.Anything, mock.MatchedBy(func(event entity.NodeSaleEvent) bool {
+		return event.Valid == false && event.Reason == purchase.OVER_LIMIT_PER_TIER
+	})).Return(nil)
+
+	err := p.ProcessPurchase(ctx, mockDgTx, block, event)
+	require.NoError(t, err)
+}

modules/nodesale/repository/postgres/gen/blocks.sql.go

@@ -0,0 +1,62 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+// source: blocks.sql
+
+package gen
+
+import (
+	"context"
+)
+
+const createBlock = `-- name: CreateBlock :exec
+INSERT INTO blocks ("block_height", "block_hash", "module")
+VALUES ($1, $2, $3)
+`
+
+type CreateBlockParams struct {
+	BlockHeight int64
+	BlockHash   string
+	Module      string
+}
+
+func (q *Queries) CreateBlock(ctx context.Context, arg CreateBlockParams) error {
+	_, err := q.db.Exec(ctx, createBlock, arg.BlockHeight, arg.BlockHash, arg.Module)
+	return err
+}
+
+const getBlock = `-- name: GetBlock :one
+SELECT block_height, block_hash, module FROM blocks
+WHERE "block_height" = $1
+`
+
+func (q *Queries) GetBlock(ctx context.Context, blockHeight int64) (Block, error) {
+	row := q.db.QueryRow(ctx, getBlock, blockHeight)
+	var i Block
+	err := row.Scan(&i.BlockHeight, &i.BlockHash, &i.Module)
+	return i, err
+}
+
+const getLastProcessedBlock = `-- name: GetLastProcessedBlock :one
+SELECT block_height, block_hash, module FROM blocks ORDER BY block_height DESC LIMIT 1
+`
+
+func (q *Queries) GetLastProcessedBlock(ctx context.Context) (Block, error) {
+	row := q.db.QueryRow(ctx, getLastProcessedBlock)
+	var i Block
+	err := row.Scan(&i.BlockHeight, &i.BlockHash, &i.Module)
+	return i, err
+}
+
+const removeBlockFrom = `-- name: RemoveBlockFrom :execrows
+DELETE FROM blocks
+WHERE "block_height" >= $1
+`
+
+func (q *Queries) RemoveBlockFrom(ctx context.Context, fromBlock int64) (int64, error) {
+	result, err := q.db.Exec(ctx, removeBlockFrom, fromBlock)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected(), nil
+}

modules/nodesale/repository/postgres/gen/db.go

@@ -0,0 +1,32 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+
+package gen
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

modules/nodesale/repository/postgres/gen/events.sql.go

@@ -0,0 +1,104 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+// source: events.sql
+
+package gen
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const createEvent = `-- name: CreateEvent :exec
+INSERT INTO events ("tx_hash", "block_height", "tx_index", "wallet_address", "valid", "action", 
+                    "raw_message", "parsed_message", "block_timestamp", "block_hash", "metadata",
+                    "reason")
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
+`
+
+type CreateEventParams struct {
+	TxHash         string
+	BlockHeight    int64
+	TxIndex        int32
+	WalletAddress  string
+	Valid          bool
+	Action         int32
+	RawMessage     []byte
+	ParsedMessage  []byte
+	BlockTimestamp pgtype.Timestamp
+	BlockHash      string
+	Metadata       []byte
+	Reason         string
+}
+
+func (q *Queries) CreateEvent(ctx context.Context, arg CreateEventParams) error {
+	_, err := q.db.Exec(ctx, createEvent,
+		arg.TxHash,
+		arg.BlockHeight,
+		arg.TxIndex,
+		arg.WalletAddress,
+		arg.Valid,
+		arg.Action,
+		arg.RawMessage,
+		arg.ParsedMessage,
+		arg.BlockTimestamp,
+		arg.BlockHash,
+		arg.Metadata,
+		arg.Reason,
+	)
+	return err
+}
+
+const getEventsByWallet = `-- name: GetEventsByWallet :many
+SELECT tx_hash, block_height, tx_index, wallet_address, valid, action, raw_message, parsed_message, block_timestamp, block_hash, metadata, reason
+FROM events
+WHERE wallet_address = $1
+`
+
+func (q *Queries) GetEventsByWallet(ctx context.Context, walletAddress string) ([]Event, error) {
+	rows, err := q.db.Query(ctx, getEventsByWallet, walletAddress)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Event
+	for rows.Next() {
+		var i Event
+		if err := rows.Scan(
+			&i.TxHash,
+			&i.BlockHeight,
+			&i.TxIndex,
+			&i.WalletAddress,
+			&i.Valid,
+			&i.Action,
+			&i.RawMessage,
+			&i.ParsedMessage,
+			&i.BlockTimestamp,
+			&i.BlockHash,
+			&i.Metadata,
+			&i.Reason,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const removeEventsFromBlock = `-- name: RemoveEventsFromBlock :execrows
+DELETE FROM events
+WHERE "block_height" >= $1
+`
+
+func (q *Queries) RemoveEventsFromBlock(ctx context.Context, fromBlock int64) (int64, error) {
+	result, err := q.db.Exec(ctx, removeEventsFromBlock, fromBlock)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected(), nil
+}

modules/nodesale/repository/postgres/gen/models.go

@@ -0,0 +1,55 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+
+package gen
+
+import (
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+type Block struct {
+	BlockHeight int64
+	BlockHash   string
+	Module      string
+}
+
+type Event struct {
+	TxHash         string
+	BlockHeight    int64
+	TxIndex        int32
+	WalletAddress  string
+	Valid          bool
+	Action         int32
+	RawMessage     []byte
+	ParsedMessage  []byte
+	BlockTimestamp pgtype.Timestamp
+	BlockHash      string
+	Metadata       []byte
+	Reason         string
+}
+
+type Node struct {
+	SaleBlock      int64
+	SaleTxIndex    int32
+	NodeID         int32
+	TierIndex      int32
+	DelegatedTo    string
+	OwnerPublicKey string
+	PurchaseTxHash string
+	DelegateTxHash string
+}
+
+type NodeSale struct {
+	BlockHeight           int64
+	TxIndex               int32
+	Name                  string
+	StartsAt              pgtype.Timestamp
+	EndsAt                pgtype.Timestamp
+	Tiers                 [][]byte
+	SellerPublicKey       string
+	MaxPerAddress         int32
+	DeployTxHash          string
+	MaxDiscountPercentage int32
+	SellerWallet          string
+}

modules/nodesale/repository/postgres/gen/nodes.sql.go

@@ -0,0 +1,271 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+// source: nodes.sql
+
+package gen
+
+import (
+	"context"
+)
+
+const clearDelegate = `-- name: ClearDelegate :execrows
+UPDATE nodes
+SET "delegated_to" = ''
+WHERE "delegate_tx_hash" = ''
+`
+
+func (q *Queries) ClearDelegate(ctx context.Context) (int64, error) {
+	result, err := q.db.Exec(ctx, clearDelegate)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected(), nil
+}
+
+const createNode = `-- name: CreateNode :exec
+INSERT INTO nodes (sale_block, sale_tx_index, node_id, tier_index, delegated_to, owner_public_key, purchase_tx_hash, delegate_tx_hash)
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
+`
+
+type CreateNodeParams struct {
+	SaleBlock      int64
+	SaleTxIndex    int32
+	NodeID         int32
+	TierIndex      int32
+	DelegatedTo    string
+	OwnerPublicKey string
+	PurchaseTxHash string
+	DelegateTxHash string
+}
+
+func (q *Queries) CreateNode(ctx context.Context, arg CreateNodeParams) error {
+	_, err := q.db.Exec(ctx, createNode,
+		arg.SaleBlock,
+		arg.SaleTxIndex,
+		arg.NodeID,
+		arg.TierIndex,
+		arg.DelegatedTo,
+		arg.OwnerPublicKey,
+		arg.PurchaseTxHash,
+		arg.DelegateTxHash,
+	)
+	return err
+}
+
+const getNodeCountByTierIndex = `-- name: GetNodeCountByTierIndex :many
+SELECT (tiers.tier_index)::int AS tier_index, count(nodes.tier_index)
+FROM generate_series($3::int,$4::int) AS tiers(tier_index)
+LEFT JOIN 
+	(SELECT sale_block, sale_tx_index, node_id, tier_index, delegated_to, owner_public_key, purchase_tx_hash, delegate_tx_hash 
+	FROM nodes 
+	WHERE sale_block = $1 AND 
+		sale_tx_index= $2) 
+	AS nodes ON tiers.tier_index = nodes.tier_index 
+GROUP BY tiers.tier_index
+ORDER BY tiers.tier_index
+`
+
+type GetNodeCountByTierIndexParams struct {
+	SaleBlock   int64
+	SaleTxIndex int32
+	FromTier    int32
+	ToTier      int32
+}
+
+type GetNodeCountByTierIndexRow struct {
+	TierIndex int32
+	Count     int64
+}
+
+func (q *Queries) GetNodeCountByTierIndex(ctx context.Context, arg GetNodeCountByTierIndexParams) ([]GetNodeCountByTierIndexRow, error) {
+	rows, err := q.db.Query(ctx, getNodeCountByTierIndex,
+		arg.SaleBlock,
+		arg.SaleTxIndex,
+		arg.FromTier,
+		arg.ToTier,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []GetNodeCountByTierIndexRow
+	for rows.Next() {
+		var i GetNodeCountByTierIndexRow
+		if err := rows.Scan(&i.TierIndex, &i.Count); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const getNodesByIds = `-- name: GetNodesByIds :many
+SELECT sale_block, sale_tx_index, node_id, tier_index, delegated_to, owner_public_key, purchase_tx_hash, delegate_tx_hash
+FROM nodes
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    node_id = ANY ($3::int[])
+`
+
+type GetNodesByIdsParams struct {
+	SaleBlock   int64
+	SaleTxIndex int32
+	NodeIds     []int32
+}
+
+func (q *Queries) GetNodesByIds(ctx context.Context, arg GetNodesByIdsParams) ([]Node, error) {
+	rows, err := q.db.Query(ctx, getNodesByIds, arg.SaleBlock, arg.SaleTxIndex, arg.NodeIds)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Node
+	for rows.Next() {
+		var i Node
+		if err := rows.Scan(
+			&i.SaleBlock,
+			&i.SaleTxIndex,
+			&i.NodeID,
+			&i.TierIndex,
+			&i.DelegatedTo,
+			&i.OwnerPublicKey,
+			&i.PurchaseTxHash,
+			&i.DelegateTxHash,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const getNodesByOwner = `-- name: GetNodesByOwner :many
+SELECT sale_block, sale_tx_index, node_id, tier_index, delegated_to, owner_public_key, purchase_tx_hash, delegate_tx_hash 
+FROM nodes
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    owner_public_key = $3
+ORDER BY tier_index
+`
+
+type GetNodesByOwnerParams struct {
+	SaleBlock      int64
+	SaleTxIndex    int32
+	OwnerPublicKey string
+}
+
+func (q *Queries) GetNodesByOwner(ctx context.Context, arg GetNodesByOwnerParams) ([]Node, error) {
+	rows, err := q.db.Query(ctx, getNodesByOwner, arg.SaleBlock, arg.SaleTxIndex, arg.OwnerPublicKey)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Node
+	for rows.Next() {
+		var i Node
+		if err := rows.Scan(
+			&i.SaleBlock,
+			&i.SaleTxIndex,
+			&i.NodeID,
+			&i.TierIndex,
+			&i.DelegatedTo,
+			&i.OwnerPublicKey,
+			&i.PurchaseTxHash,
+			&i.DelegateTxHash,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const getNodesByPubkey = `-- name: GetNodesByPubkey :many
+SELECT nodes.sale_block, nodes.sale_tx_index, nodes.node_id, nodes.tier_index, nodes.delegated_to, nodes.owner_public_key, nodes.purchase_tx_hash, nodes.delegate_tx_hash
+FROM nodes JOIN events ON nodes.purchase_tx_hash = events.tx_hash
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    owner_public_key = $3 AND
+    delegated_to = $4
+`
+
+type GetNodesByPubkeyParams struct {
+	SaleBlock      int64
+	SaleTxIndex    int32
+	OwnerPublicKey string
+	DelegatedTo    string
+}
+
+func (q *Queries) GetNodesByPubkey(ctx context.Context, arg GetNodesByPubkeyParams) ([]Node, error) {
+	rows, err := q.db.Query(ctx, getNodesByPubkey,
+		arg.SaleBlock,
+		arg.SaleTxIndex,
+		arg.OwnerPublicKey,
+		arg.DelegatedTo,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Node
+	for rows.Next() {
+		var i Node
+		if err := rows.Scan(
+			&i.SaleBlock,
+			&i.SaleTxIndex,
+			&i.NodeID,
+			&i.TierIndex,
+			&i.DelegatedTo,
+			&i.OwnerPublicKey,
+			&i.PurchaseTxHash,
+			&i.DelegateTxHash,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+const setDelegates = `-- name: SetDelegates :execrows
+UPDATE nodes
+SET delegated_to = $4, delegate_tx_hash = $3
+WHERE sale_block = $1 AND
+    sale_tx_index = $2 AND
+    node_id = ANY ($5::int[])
+`
+
+type SetDelegatesParams struct {
+	SaleBlock      int64
+	SaleTxIndex    int32
+	DelegateTxHash string
+	Delegatee      string
+	NodeIds        []int32
+}
+
+func (q *Queries) SetDelegates(ctx context.Context, arg SetDelegatesParams) (int64, error) {
+	result, err := q.db.Exec(ctx, setDelegates,
+		arg.SaleBlock,
+		arg.SaleTxIndex,
+		arg.DelegateTxHash,
+		arg.Delegatee,
+		arg.NodeIds,
+	)
+	if err != nil {
+		return 0, err
+	}
+	return result.RowsAffected(), nil
+}

modules/nodesale/repository/postgres/gen/nodesales.sql.go

@@ -0,0 +1,92 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+// source: nodesales.sql
+
+package gen
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const createNodeSale = `-- name: CreateNodeSale :exec
+INSERT INTO node_sales ("block_height", "tx_index", "name", "starts_at", "ends_at", "tiers", "seller_public_key", "max_per_address", "deploy_tx_hash", "max_discount_percentage", "seller_wallet")
+VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
+`
+
+type CreateNodeSaleParams struct {
+	BlockHeight           int64
+	TxIndex               int32
+	Name                  string
+	StartsAt              pgtype.Timestamp
+	EndsAt                pgtype.Timestamp
+	Tiers                 [][]byte
+	SellerPublicKey       string
+	MaxPerAddress         int32
+	DeployTxHash          string
+	MaxDiscountPercentage int32
+	SellerWallet          string
+}
+
+func (q *Queries) CreateNodeSale(ctx context.Context, arg CreateNodeSaleParams) error {
+	_, err := q.db.Exec(ctx, createNodeSale,
+		arg.BlockHeight,
+		arg.TxIndex,
+		arg.Name,
+		arg.StartsAt,
+		arg.EndsAt,
+		arg.Tiers,
+		arg.SellerPublicKey,
+		arg.MaxPerAddress,
+		arg.DeployTxHash,
+		arg.MaxDiscountPercentage,
+		arg.SellerWallet,
+	)
+	return err
+}
+
+const getNodeSale = `-- name: GetNodeSale :many
+SELECT block_height, tx_index, name, starts_at, ends_at, tiers, seller_public_key, max_per_address, deploy_tx_hash, max_discount_percentage, seller_wallet
+FROM node_sales
+WHERE block_height = $1 AND
+    tx_index = $2
+`
+
+type GetNodeSaleParams struct {
+	BlockHeight int64
+	TxIndex     int32
+}
+
+func (q *Queries) GetNodeSale(ctx context.Context, arg GetNodeSaleParams) ([]NodeSale, error) {
+	rows, err := q.db.Query(ctx, getNodeSale, arg.BlockHeight, arg.TxIndex)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []NodeSale
+	for rows.Next() {
+		var i NodeSale
+		if err := rows.Scan(
+			&i.BlockHeight,
+			&i.TxIndex,
+			&i.Name,
+			&i.StartsAt,
+			&i.EndsAt,
+			&i.Tiers,
+			&i.SellerPublicKey,
+			&i.MaxPerAddress,
+			&i.DeployTxHash,
+			&i.MaxDiscountPercentage,
+			&i.SellerWallet,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}

modules/nodesale/repository/postgres/gen/test.sql.go

@@ -0,0 +1,20 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.26.0
+// source: test.sql
+
+package gen
+
+import (
+	"context"
+)
+
+const clearEvents = `-- name: ClearEvents :exec
+DELETE FROM events
+WHERE tx_hash <> ''
+`
+
+func (q *Queries) ClearEvents(ctx context.Context) error {
+	_, err := q.db.Exec(ctx, clearEvents)
+	return err
+}

modules/nodesale/repository/postgres/mapper.go

@@ -0,0 +1,74 @@
+package postgres
+
+import (
+	"encoding/json"
+
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/repository/postgres/gen"
+	"github.com/samber/lo"
+)
+
+func mapNodes(nodes []gen.Node) []entity.Node {
+	return lo.Map(nodes, func(item gen.Node, index int) entity.Node {
+		return entity.Node{
+			SaleBlock:      uint64(item.SaleBlock),
+			SaleTxIndex:    uint32(item.SaleTxIndex),
+			NodeID:         uint32(item.NodeID),
+			TierIndex:      item.TierIndex,
+			DelegatedTo:    item.DelegatedTo,
+			OwnerPublicKey: item.OwnerPublicKey,
+			PurchaseTxHash: item.PurchaseTxHash,
+			DelegateTxHash: item.DelegateTxHash,
+		}
+	})
+}
+
+func mapNodeSales(nodeSales []gen.NodeSale) []entity.NodeSale {
+	return lo.Map(nodeSales, func(item gen.NodeSale, index int) entity.NodeSale {
+		return entity.NodeSale{
+			BlockHeight:           uint64(item.BlockHeight),
+			TxIndex:               uint32(item.TxIndex),
+			Name:                  item.Name,
+			StartsAt:              item.StartsAt.Time,
+			EndsAt:                item.EndsAt.Time,
+			Tiers:                 item.Tiers,
+			SellerPublicKey:       item.SellerPublicKey,
+			MaxPerAddress:         uint32(item.MaxPerAddress),
+			DeployTxHash:          item.DeployTxHash,
+			MaxDiscountPercentage: item.MaxDiscountPercentage,
+			SellerWallet:          item.SellerWallet,
+		}
+	})
+}
+
+func mapNodeCountByTierIndexRows(nodeCount []gen.GetNodeCountByTierIndexRow) []datagateway.GetNodeCountByTierIndexRow {
+	return lo.Map(nodeCount, func(item gen.GetNodeCountByTierIndexRow, index int) datagateway.GetNodeCountByTierIndexRow {
+		return datagateway.GetNodeCountByTierIndexRow{
+			TierIndex: item.TierIndex,
+		}
+	})
+}
+
+func mapNodeSalesEvents(events []gen.Event) []entity.NodeSaleEvent {
+	return lo.Map(events, func(item gen.Event, index int) entity.NodeSaleEvent {
+		var meta entity.MetadataEventPurchase
+		err := json.Unmarshal(item.Metadata, &meta)
+		if err != nil {
+			meta = entity.MetadataEventPurchase{}
+		}
+		return entity.NodeSaleEvent{
+			TxHash:         item.TxHash,
+			BlockHeight:    item.BlockHeight,
+			TxIndex:        item.TxIndex,
+			WalletAddress:  item.WalletAddress,
+			Valid:          item.Valid,
+			Action:         item.Action,
+			RawMessage:     item.RawMessage,
+			ParsedMessage:  item.ParsedMessage,
+			BlockTimestamp: item.BlockTimestamp.Time.UTC(),
+			BlockHash:      item.BlockHash,
+			Metadata:       &meta,
+		}
+	})
+}

modules/nodesale/repository/postgres/repository.go

@@ -0,0 +1,236 @@
+package postgres
+
+import (
+	"context"
+	"encoding/json"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/internal/postgres"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/modules/nodesale/internal/entity"
+	"github.com/gaze-network/indexer-network/modules/nodesale/repository/postgres/gen"
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgtype"
+	"github.com/samber/lo"
+)
+
+type Repository struct {
+	db      postgres.DB
+	queries *gen.Queries
+	tx      pgx.Tx
+}
+
+func NewRepository(db postgres.DB) *Repository {
+	return &Repository{
+		db:      db,
+		queries: gen.New(db),
+	}
+}
+
+func (repo *Repository) CreateBlock(ctx context.Context, arg entity.Block) error {
+	err := repo.queries.CreateBlock(ctx, gen.CreateBlockParams{
+		BlockHeight: arg.BlockHeight,
+		BlockHash:   arg.BlockHash,
+		Module:      arg.Module,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Cannot Add block")
+	}
+
+	return nil
+}
+
+func (repo *Repository) GetBlock(ctx context.Context, blockHeight int64) (*entity.Block, error) {
+	block, err := repo.queries.GetBlock(ctx, blockHeight)
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get block")
+	}
+	return &entity.Block{
+		BlockHeight: block.BlockHeight,
+		BlockHash:   block.BlockHash,
+		Module:      block.Module,
+	}, nil
+}
+
+func (repo *Repository) GetLastProcessedBlock(ctx context.Context) (*entity.Block, error) {
+	block, err := repo.queries.GetLastProcessedBlock(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get last processed block")
+	}
+	return &entity.Block{
+		BlockHeight: block.BlockHeight,
+		BlockHash:   block.BlockHash,
+		Module:      block.Module,
+	}, nil
+}
+
+func (repo *Repository) RemoveBlockFrom(ctx context.Context, fromBlock int64) (int64, error) {
+	affected, err := repo.queries.RemoveBlockFrom(ctx, fromBlock)
+	if err != nil {
+		return 0, errors.Wrap(err, "Cannot remove blocks")
+	}
+	return affected, nil
+}
+
+func (repo *Repository) RemoveEventsFromBlock(ctx context.Context, fromBlock int64) (int64, error) {
+	affected, err := repo.queries.RemoveEventsFromBlock(ctx, fromBlock)
+	if err != nil {
+		return 0, errors.Wrap(err, "Cannot remove events")
+	}
+	return affected, nil
+}
+
+func (repo *Repository) ClearDelegate(ctx context.Context) (int64, error) {
+	affected, err := repo.queries.ClearDelegate(ctx)
+	if err != nil {
+		return 0, errors.Wrap(err, "Cannot clear delegate")
+	}
+	return affected, nil
+}
+
+func (repo *Repository) GetNodesByIds(ctx context.Context, arg datagateway.GetNodesByIdsParams) ([]entity.Node, error) {
+	nodes, err := repo.queries.GetNodesByIds(ctx, gen.GetNodesByIdsParams{
+		SaleBlock:   int64(arg.SaleBlock),
+		SaleTxIndex: int32(arg.SaleTxIndex),
+		NodeIds:     lo.Map(arg.NodeIds, func(item uint32, index int) int32 { return int32(item) }),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get nodes")
+	}
+	return mapNodes(nodes), nil
+}
+
+func (repo *Repository) CreateEvent(ctx context.Context, arg entity.NodeSaleEvent) error {
+	metaDataBytes := []byte("{}")
+	if arg.Metadata != nil {
+		metaDataBytes, _ = json.Marshal(arg.Metadata)
+	}
+	err := repo.queries.CreateEvent(ctx, gen.CreateEventParams{
+		TxHash:         arg.TxHash,
+		BlockHeight:    arg.BlockHeight,
+		TxIndex:        arg.TxIndex,
+		WalletAddress:  arg.WalletAddress,
+		Valid:          arg.Valid,
+		Action:         arg.Action,
+		RawMessage:     arg.RawMessage,
+		ParsedMessage:  arg.ParsedMessage,
+		BlockTimestamp: pgtype.Timestamp{Time: arg.BlockTimestamp.UTC(), Valid: true},
+		BlockHash:      arg.BlockHash,
+		Metadata:       metaDataBytes,
+		Reason:         arg.Reason,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Cannot add event")
+	}
+	return nil
+}
+
+func (repo *Repository) SetDelegates(ctx context.Context, arg datagateway.SetDelegatesParams) (int64, error) {
+	affected, err := repo.queries.SetDelegates(ctx, gen.SetDelegatesParams{
+		SaleBlock:      int64(arg.SaleBlock),
+		SaleTxIndex:    arg.SaleTxIndex,
+		Delegatee:      arg.Delegatee,
+		DelegateTxHash: arg.DelegateTxHash,
+		NodeIds:        lo.Map(arg.NodeIds, func(item uint32, index int) int32 { return int32(item) }),
+	})
+	if err != nil {
+		return 0, errors.Wrap(err, "Cannot set delegate")
+	}
+	return affected, nil
+}
+
+func (repo *Repository) CreateNodeSale(ctx context.Context, arg entity.NodeSale) error {
+	err := repo.queries.CreateNodeSale(ctx, gen.CreateNodeSaleParams{
+		BlockHeight:           int64(arg.BlockHeight),
+		TxIndex:               int32(arg.TxIndex),
+		Name:                  arg.Name,
+		StartsAt:              pgtype.Timestamp{Time: arg.StartsAt.UTC(), Valid: true},
+		EndsAt:                pgtype.Timestamp{Time: arg.EndsAt.UTC(), Valid: true},
+		Tiers:                 arg.Tiers,
+		SellerPublicKey:       arg.SellerPublicKey,
+		MaxPerAddress:         int32(arg.MaxPerAddress),
+		DeployTxHash:          arg.DeployTxHash,
+		MaxDiscountPercentage: arg.MaxDiscountPercentage,
+		SellerWallet:          arg.SellerWallet,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Cannot add NodeSale")
+	}
+	return nil
+}
+
+func (repo *Repository) GetNodeSale(ctx context.Context, arg datagateway.GetNodeSaleParams) ([]entity.NodeSale, error) {
+	nodeSales, err := repo.queries.GetNodeSale(ctx, gen.GetNodeSaleParams{
+		BlockHeight: int64(arg.BlockHeight),
+		TxIndex:     int32(arg.TxIndex),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get NodeSale")
+	}
+
+	return mapNodeSales(nodeSales), nil
+}
+
+func (repo *Repository) GetNodesByOwner(ctx context.Context, arg datagateway.GetNodesByOwnerParams) ([]entity.Node, error) {
+	nodes, err := repo.queries.GetNodesByOwner(ctx, gen.GetNodesByOwnerParams{
+		SaleBlock:      int64(arg.SaleBlock),
+		SaleTxIndex:    int32(arg.SaleTxIndex),
+		OwnerPublicKey: arg.OwnerPublicKey,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get nodes by owner")
+	}
+	return mapNodes(nodes), nil
+}
+
+func (repo *Repository) CreateNode(ctx context.Context, arg entity.Node) error {
+	err := repo.queries.CreateNode(ctx, gen.CreateNodeParams{
+		SaleBlock:      int64(arg.SaleBlock),
+		SaleTxIndex:    int32(arg.SaleTxIndex),
+		NodeID:         int32(arg.NodeID),
+		TierIndex:      arg.TierIndex,
+		DelegatedTo:    arg.DelegatedTo,
+		OwnerPublicKey: arg.OwnerPublicKey,
+		PurchaseTxHash: arg.PurchaseTxHash,
+		DelegateTxHash: arg.DelegateTxHash,
+	})
+	if err != nil {
+		return errors.Wrap(err, "Cannot add node")
+	}
+	return nil
+}
+
+func (repo *Repository) GetNodeCountByTierIndex(ctx context.Context, arg datagateway.GetNodeCountByTierIndexParams) ([]datagateway.GetNodeCountByTierIndexRow, error) {
+	nodeCount, err := repo.queries.GetNodeCountByTierIndex(ctx, gen.GetNodeCountByTierIndexParams{
+		SaleBlock:   int64(arg.SaleBlock),
+		SaleTxIndex: int32(arg.SaleTxIndex),
+		FromTier:    int32(arg.FromTier),
+		ToTier:      int32(arg.ToTier),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get node count by tier index")
+	}
+
+	return mapNodeCountByTierIndexRows(nodeCount), nil
+}
+
+func (repo *Repository) GetNodesByPubkey(ctx context.Context, arg datagateway.GetNodesByPubkeyParams) ([]entity.Node, error) {
+	nodes, err := repo.queries.GetNodesByPubkey(ctx, gen.GetNodesByPubkeyParams{
+		SaleBlock:      arg.SaleBlock,
+		SaleTxIndex:    arg.SaleTxIndex,
+		OwnerPublicKey: arg.OwnerPublicKey,
+		DelegatedTo:    arg.DelegatedTo,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "Cannot get nodes by public key")
+	}
+	return mapNodes(nodes), nil
+}
+
+func (repo *Repository) GetEventsByWallet(ctx context.Context, walletAddress string) ([]entity.NodeSaleEvent, error) {
+	events, err := repo.queries.GetEventsByWallet(ctx, walletAddress)
+	if err != nil {
+		return nil, errors.Wrap(err, "cannot get events by wallet")
+	}
+	return mapNodeSalesEvents(events), nil
+}

modules/nodesale/repository/postgres/tx.go

@@ -0,0 +1,62 @@
+package postgres
+
+import (
+	"context"
+
+	"github.com/cockroachdb/errors"
+	"github.com/gaze-network/indexer-network/modules/nodesale/datagateway"
+	"github.com/gaze-network/indexer-network/pkg/logger"
+	"github.com/jackc/pgx/v5"
+)
+
+var ErrTxAlreadyExists = errors.New("Transaction already exists. Call Commit() or Rollback() first.")
+
+func (r *Repository) begin(ctx context.Context) (*Repository, error) {
+	if r.tx != nil {
+		return nil, errors.WithStack(ErrTxAlreadyExists)
+	}
+	tx, err := r.db.Begin(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to begin transaction")
+	}
+	return &Repository{
+		db:      r.db,
+		queries: r.queries.WithTx(tx),
+		tx:      tx,
+	}, nil
+}
+
+func (r *Repository) BeginNodeSaleTx(ctx context.Context) (datagateway.NodeSaleDataGatewayWithTx, error) {
+	repo, err := r.begin(ctx)
+	if err != nil {
+		return nil, errors.WithStack(err)
+	}
+	return repo, nil
+}
+
+func (r *Repository) Commit(ctx context.Context) error {
+	if r.tx == nil {
+		return nil
+	}
+	err := r.tx.Commit(ctx)
+	if err != nil {
+		return errors.Wrap(err, "failed to commit transaction")
+	}
+	r.tx = nil
+	return nil
+}
+
+func (r *Repository) Rollback(ctx context.Context) error {
+	if r.tx == nil {
+		return nil
+	}
+	err := r.tx.Rollback(ctx)
+	if err != nil && !errors.Is(err, pgx.ErrTxClosed) {
+		return errors.Wrap(err, "failed to rollback transaction")
+	}
+	if err == nil {
+		logger.DebugContext(ctx, "rolled back transaction")
+	}
+	r.tx = nil
+	return nil
+}

modules/nodesale/tapscript.go

@@ -0,0 +1,25 @@
+package nodesale
+
+import "github.com/btcsuite/btcd/txscript"
+
+func extractTapScript(witness [][]byte) (tokenizer txscript.ScriptTokenizer, controlBlock *txscript.ControlBlock, isTapScript bool) {
+	witness = removeAnnexFromWitness(witness)
+	if len(witness) < 2 {
+		return txscript.ScriptTokenizer{}, nil, false
+	}
+	script := witness[len(witness)-2]
+	rawControl := witness[len(witness)-1]
+	parsedControl, err := txscript.ParseControlBlock(rawControl)
+	if err != nil {
+		return txscript.ScriptTokenizer{}, nil, false
+	}
+
+	return txscript.MakeScriptTokenizer(0, script), parsedControl, true
+}
+
+func removeAnnexFromWitness(witness [][]byte) [][]byte {
+	if len(witness) >= 2 && len(witness[len(witness)-1]) > 0 && witness[len(witness)-1][0] == txscript.TaprootAnnexTag {
+		return witness[:len(witness)-1]
+	}
+	return witness
+}

sqlc.yaml

@@ -17,3 +17,11 @@ sql:
         sql_package: "pgx/v5"
         rename:
           id: "Id"
+  - schema: "./modules/nodesale/database/postgresql/migrations"
+    queries: "./modules/nodesale/database/postgresql/queries"
+    engine: "postgresql"
+    gen:
+      go:
+        package: "gen"
+        out: "./modules/nodesale/repository/postgres/gen"
+        sql_package: "pgx/v5"