// Type definitions for db.js v0.14.0
// Project: https://github.com/aaronpowell/db.js/
// Definitions by: Chris Wrench <https://github.com/cgwrench>
// Definitions: https://github.com/borisyankov/DefinitelyTyped

declare module DbJs {
    interface ErrorListener {
        (err: Error): void;
    }

    interface OpenOptions {
        server: string;
        version: number;
        schema?: any;
    }

    interface DbJsStatic {
        open(options: OpenOptions): Promise<Server>;
        delete(dbName: string): Promise<void>;
        cmp(key1: any, key2: any): number;
    }

    // Query API

    interface ExecutableQuery<T> {
        execute(): Promise<T[]>;
    }

    interface CountableQuery<T> {
        count(): ExecutableQuery<T>;
    }

    interface KeysQuery<T> extends DescableQuery<T>, ExecutableQuery<T>, FilterableQuery<T>, DistinctableQuery<T>, MappableQuery<T>    {
    }

    interface KeyableQuery<T> {
        keys(): KeysQuery<T>;
    }

    interface FilterQuery<T> extends KeyableQuery<T>, ExecutableQuery<T>, FilterableQuery<T>, DescableQuery<T>, DistinctableQuery<T>, ModifiableQuery<T>, LimitableQuery<T>, MappableQuery<T> {
    }

    interface FilterableQuery<T> {
        filter<TValue>(index: string, value: TValue): FilterQuery<T>;
        filter(filter: (value: T) => boolean): FilterQuery<T>;
    }

    interface DescQuery<T> extends KeyableQuery<T>, CountableQuery<T>, ExecutableQuery<T>, FilterableQuery<T>, DescableQuery<T>, ModifiableQuery<T>, MappableQuery<T> {
    }

    interface DescableQuery<T> {
        desc(): DescQuery<T>;
    }

    interface DistinctQuery<T> extends KeyableQuery<T>, ExecutableQuery<T>, FilterableQuery<T>, DescableQuery<T>, ModifiableQuery<T>, MappableQuery<T>, CountableQuery<T> {
    }

    interface DistinctableQuery<T> {
        distinct(filter?: (value: T) => boolean): DistinctQuery<T>;
    }

    interface ModifiableQuery<T> {
        modify(filter: (value: T) => boolean): ExecutableQuery<T>;
        modify(modifyObj: any): ExecutableQuery<T>;
    }

    interface LimitableQuery<T> {
        limit(n: any, m: any): ExecutableQuery<T>;
    }

    interface MappableQuery<T> {
        map<TMap>(fn: (value: T) => TMap): Query<TMap>;
    }

    interface Query<T> extends Promise<T>, KeyableQuery<T>, ExecutableQuery<T>, FilterableQuery<T>, DescableQuery<T>, DistinctableQuery<T>, ModifiableQuery<T>, LimitableQuery<T>, MappableQuery<T>, CountableQuery<T> {
    }

    interface IndexQuery<T> extends Query<T> {
        only(...args: any[]): Query<T>;
        bound(lowerBound: any, upperBound: any): Query<T>;
        upperBound(upperBound: any): Query<T>;
        lowerBound(lowerBound: any): Query<T>;
        range(opts: any): Query<T>;
        all(): Query<T>;
    }

    interface KeyValuePair<TKey, TValue> {
        key: TKey;
        item: TValue;
    }

    interface BaseServer {
        getIndexedDB(): IDBDatabase;
        close(): void;
    }

    interface IndexAccessibleServer {
        [store: string]: TypedObjectStoreServer<any>;
    }

    interface ObjectStoreServer {
        add<T>(table: string, entity: T): Promise<T>;
        add<T>(table: string, ...entities: T[]): Promise<T[]>;
        add<TKey, TValue>(table: string, entity: KeyValuePair<TKey, TValue>): Promise<KeyValuePair<TKey, TValue>>;
        add<TKey, TValue>(table: string, ...entities: KeyValuePair<TKey, TValue>[]): Promise<KeyValuePair<TKey, TValue>[]>;
        update<T>(table: string, entity: T): Promise<T>;
        update<T>(table: string, ...entities: T[]): Promise<T[]>;
        update<TKey, TValue>(table: string, entity: KeyValuePair<TKey, TValue>): Promise<KeyValuePair<TKey, TValue>>;
        update<TKey, TValue>(table: string, ...entities: KeyValuePair<TKey, TValue>[]): Promise<KeyValuePair<TKey, TValue>[]>;
        remove<TKey>(table: string, key: TKey): Promise<TKey>;
        remove<TKey>(table: string, ...keys: TKey[]): Promise<TKey[]>;
        clear(table: string): Promise<void>;
        get<T>(table: string, key: any): Promise<T>;
        query<T>(table: string): IndexQuery<T>;
        query<T>(table: string, index: string): IndexQuery<T>;
        count(): Promise<number>;
        count(keyOrRange: any): Promise<number>;
        count(table: string, key: any): Promise<number>;
        addEventListener(type: 'abort', listener: (ev: Event) => any): void;
        addEventListener(type: 'versionchange', listener: (ev: Event) => any): void;
        addEventListener(type: 'error', listener: (err: Error) => any): void;
        addEventListener(type: string, listener: EventListener | ErrorListener): void;
        abort(listener: (ev: Event) => any): ObjectStoreServer;
        versionchange(listener: (ev: Event) => any): ObjectStoreServer;
        error(listener: (ev: Error) => any): ObjectStoreServer;
    }

    interface TypedObjectStoreServer<T> {
        add(entity: T): Promise<T>;
        add(...entities: T[]): Promise<T[]>;
        add<TKey, TValue>(entity: KeyValuePair<TKey, TValue>): Promise<KeyValuePair<TKey, TValue>>;
        add<TKey, TValue>(...entities: KeyValuePair<TKey, TValue>[]): Promise<KeyValuePair<TKey, TValue>[]>;
        update(entity: T): Promise<T>;
        update(...entities: T[]): Promise<T[]>;
        update<TKey, TValue>(entity: KeyValuePair<TKey, TValue>): Promise<KeyValuePair<TKey, TValue>>;
        update<TKey, TValue>(...entities: KeyValuePair<TKey, TValue>[]): Promise<KeyValuePair<TKey, TValue>[]>;
        remove<TKey>(key: TKey): Promise<TKey>;
        remove<TKey>(...keys: TKey[]): Promise<TKey[]>;
        clear(): Promise<void>;
        get(key: any): Promise<T>;
        query(): IndexQuery<T>;
        query(index: string): IndexQuery<T>;
        count(key: any): Promise<number>;
    }

    type Server = DbJs.IndexAccessibleServer & DbJs.ObjectStoreServer & DbJs.BaseServer;
}

declare module "db.js" {
    var db: DbJs.DbJsStatic;
    export = db;
}

declare var db: DbJs.DbJsStatic;