brc20-tx20 (#783)

* brc20-tx20

* dep fixed

* Wsbtc removed

clarity/Clarinet.toml

@@ -50,8 +50,8 @@ contract_id = "SP3951VNPC55BMS9RCF6SKRZP4K3Q2PQ2RSM1DD1V.fast"
 contract_id = "SPPK49DG7WR1J5D50GZ4W7DYYWM5MAXSX0ZA9VEJ.FrodoSaylorKeanuPepe10Inu-token-v69"
 [[project.requirements]]
 contract_id = "SP3WPNAEBYMX06RQNNYTH5PTJ1FRGX5A13ZZMZ01D.dogwifhat-token"
-[[project.requirements]]
-contract_id = "SP3R4MHK99JAAM0N3T0CBZRZVSVQFG1N75DQ08JSD.Wsbtc"
+# [[project.requirements]]
+# contract_id = "SP3R4MHK99JAAM0N3T0CBZRZVSVQFG1N75DQ08JSD.Wsbtc"
 [[project.requirements]]
 contract_id = "SP3SJSNPJXXHY7RJM48ZT6G1BXYZADAC5YAXZA3ZC.ODINToken"
 [[project.requirements]]
@@ -1586,7 +1586,7 @@ depends_on = ["trait-ownable", "trait-sip-010"]
 
 # [contracts.token-ssl-wsbtc-08JSD]
 # path = "contracts/wrapped-token/token-ssl-wsbtc-08JSD.clar"
-# depends_on = [ "trait-ownable", "trait-sip-010" ]
+# depends_on = [ ]
 # clarity_version = 2
 # epoch = 2.4
 

clarity/contracts/token/brc20-tx20.clar

@@ -0,0 +1,229 @@
+(define-constant ERR-NOT-AUTHORIZED (err u1000))
+
+(define-constant ONE_8 u100000000)
+
+;; -- token implementation
+
+(define-fungible-token brc20-tx20)
+
+(define-data-var contract-owner principal tx-sender)
+(define-data-var token-name (string-ascii 32) "TX20 (BRC20)")
+(define-data-var token-symbol (string-ascii 32) "TX20")
+(define-data-var token-uri (optional (string-utf8 256)) (some u"https://cdn.alexlab.co/metadata/brc20-tx20.json"))
+
+(define-data-var token-decimals uint u8)
+
+(define-map approved-contracts principal bool)
+
+;; read-only calls
+
+(define-read-only (get-contract-owner)
+  (ok (var-get contract-owner))
+)
+
+(define-read-only (get-name)
+	(ok (var-get token-name))
+)
+
+(define-read-only (get-symbol)
+	(ok (var-get token-symbol))
+)
+
+(define-read-only (get-decimals)
+	(ok (var-get token-decimals))
+)
+
+(define-read-only (get-balance (who principal))
+	(ok (ft-get-balance brc20-tx20 who))
+)
+
+(define-read-only (get-total-supply)
+	(ok (ft-get-supply brc20-tx20))
+)
+
+(define-read-only (get-token-uri)
+	(ok (var-get token-uri))
+)
+
+;; @desc fixed-to-decimals
+;; @params amount
+;; @returns uint
+(define-read-only (fixed-to-decimals (amount uint))
+  (/ (* amount (pow-decimals)) ONE_8)
+)
+
+;; @desc get-total-supply-fixed
+;; @params token-id
+;; @returns (response uint)
+(define-read-only (get-total-supply-fixed)
+  (ok (decimals-to-fixed (unwrap-panic (get-total-supply))))
+)
+
+;; @desc get-balance-fixed
+;; @params token-id
+;; @params who
+;; @returns (response uint)
+(define-read-only (get-balance-fixed (account principal))
+  (ok (decimals-to-fixed (unwrap-panic (get-balance account))))
+)
+
+;; governance calls
+
+(define-public (set-contract-owner (owner principal))
+  (begin
+    (try! (check-is-owner))
+    (ok (var-set contract-owner owner))
+  )
+)
+
+(define-public (set-name (new-name (string-ascii 32)))
+	(begin
+		(try! (check-is-owner))
+		(ok (var-set token-name new-name))
+	)
+)
+
+(define-public (set-symbol (new-symbol (string-ascii 10)))
+	(begin
+		(try! (check-is-owner))
+		(ok (var-set token-symbol new-symbol))
+	)
+)
+
+(define-public (set-decimals (new-decimals uint))
+	(begin
+		(try! (check-is-owner))
+		(ok (var-set token-decimals new-decimals))
+	)
+)
+
+(define-public (set-token-uri (new-uri (optional (string-utf8 256))))
+	(begin
+		(try! (check-is-owner))
+		(ok (var-set token-uri new-uri))
+	)
+)
+
+(define-public (add-approved-contract (new-approved-contract principal))
+	(begin
+		(try! (check-is-owner))
+		(ok (map-set approved-contracts new-approved-contract true))
+	)
+)
+
+(define-public (set-approved-contract (owner principal) (approved bool))
+	(begin
+		(try! (check-is-owner))
+		(ok (map-set approved-contracts owner approved))
+	)
+)
+
+;; priviliged calls
+
+;; @desc mint
+;; @restricted ContractOwner/Approved Contract
+;; @params token-id
+;; @params amount
+;; @params recipient
+;; @returns (response bool)
+(define-public (mint (amount uint) (recipient principal))
+	(begin		
+		(asserts! (or (is-ok (check-is-approved)) (is-ok (check-is-owner))) ERR-NOT-AUTHORIZED)
+		(ft-mint? brc20-tx20 amount recipient)
+	)
+)
+
+;; @desc burn
+;; @restricted ContractOwner/Approved Contract
+;; @params token-id
+;; @params amount
+;; @params sender
+;; @returns (response bool)
+(define-public (burn (amount uint) (sender principal))
+	(begin
+		(asserts! (or (is-ok (check-is-approved)) (is-ok (check-is-owner))) ERR-NOT-AUTHORIZED)
+		(ft-burn? brc20-tx20 amount sender)
+	)
+)
+
+;; @desc mint-fixed
+;; @params token-id
+;; @params amount
+;; @params recipient
+;; @returns (response bool)
+(define-public (mint-fixed (amount uint) (recipient principal))
+  (mint (fixed-to-decimals amount) recipient)
+)
+
+;; @desc burn-fixed
+;; @params token-id
+;; @params amount
+;; @params sender
+;; @returns (response bool)
+(define-public (burn-fixed (amount uint) (sender principal))
+  (burn (fixed-to-decimals amount) sender)
+)
+
+(define-public (mint-fixed-many (recipients (list 200 { amount: uint, to: principal})))
+	(fold mint-many-iter recipients (ok true))
+)
+
+;; public calls
+
+(define-public (transfer (amount uint) (sender principal) (recipient principal) (memo (optional (buff 34))))
+    (begin
+        (asserts! (is-eq sender tx-sender) ERR-NOT-AUTHORIZED)
+        (try! (ft-transfer? brc20-tx20 amount sender recipient))
+        (match memo to-print (print to-print) 0x)
+        (ok true)
+    )
+)
+
+;; @desc transfer-fixed
+;; @params token-id
+;; @params amount
+;; @params sender
+;; @params recipient
+;; @returns (response bool)
+(define-public (transfer-fixed (amount uint) (sender principal) (recipient principal) (memo (optional (buff 34))))
+  (transfer (fixed-to-decimals amount) sender recipient memo)
+)
+
+(define-public (transfer-fixed-many (recipients (list 200 { amount: uint, to: principal})))
+	(fold transfer-many-iter recipients (ok true))
+)
+
+;; private calls
+
+(define-private (check-is-owner)
+  (ok (asserts! (is-eq tx-sender (var-get contract-owner)) ERR-NOT-AUTHORIZED))
+)
+
+(define-private (check-is-approved)
+  (ok (asserts! (default-to false (map-get? approved-contracts tx-sender)) ERR-NOT-AUTHORIZED))
+)
+
+;; @desc decimals-to-fixed 
+;; @params amount
+;; @returns uint
+(define-private (decimals-to-fixed (amount uint))
+  (/ (* amount ONE_8) (pow-decimals))
+)
+
+;; @desc pow-decimals
+;; @returns uint
+(define-private (pow-decimals)
+  (pow u10 (unwrap-panic (get-decimals)))
+)
+
+(define-private (mint-many-iter (recipient { amount: uint, to: principal }) (previous-response (response bool uint)))
+	(match previous-response prev-ok (mint-fixed (get amount recipient) (get to recipient)) prev-err previous-response)
+)
+
+(define-private (transfer-many-iter (recipient { amount: uint, to: principal }) (previous-response (response bool uint)))
+	(match previous-response prev-ok (transfer-fixed (get amount recipient) tx-sender (get to recipient) none) prev-err previous-response)
+)
+
+;; contract initialisation
+(contract-call? .alex-vault-v1-1 set-approved-token .brc20-tx20 true)
+;; (set-contract-owner .executor-dao)