// Type definitions for LevelUp 
// Project: https://github.com/rvagg/node-levelup
// Definitions by: Bret Little <https://github.com/blittle>
// Definitions: https://github.com/borisyankov/DefinitelyTyped

interface Batch {
    type: string;
    key: any;
    value?: any;
    keyEncoding?: string;
    valueEncoding?: string;
}
interface LevelUp {
    open(callback ?: (error : any) => any): void;
    close(callback ?: (error : any) => any): void;
    put(key: any, value: any, callback ?: (error: any) => any): void;
    put(key: any, value: any, options?: { sync?: boolean }, callback ?: (error: any) => any): void;
    get(key: any, callback ?: (error: any, value: any) => any): void;

    get(key: any, options ?: { keyEncoding?: string; fillCache?: boolean }, callback ?: (error: any, value: any) => any): void;
    del(key: any, callback ?: (error: any) => any): void;
    del(key: any, options ?: { keyEncoding?: string; sync?: boolean }, callback ?: (error: any) => any): void;


    batch(array: Batch[], options?: { keyEncoding?: string; valueEncoding?: string; sync?: boolean }, callback?: (error?: any)=>any);
    batch(array: Batch[], callback?: (error?: any)=>any);
    batch():LevelUpChain;
    isOpen():boolean;
    isClosed():boolean;
    createReadStream(options?: any): any;
    createKeyStream(options?: any): any;
    createValueStream(options?: any): any;
    createWriteStream(options?: any): any;
    destroy(location: string, callback?: Function): void;
    repair(location: string, callback?: Function): void;
}

interface LevelUpChain {
    put(key: any, value: any): LevelUpChain;
    put(key: any, value: any, options?: { sync?: boolean }): LevelUpChain;
    del(key: any): LevelUpChain;
    del(key: any, options ?: { keyEncoding?: string; sync?: boolean }): LevelUpChain;
    clear(): LevelUpChain;
    write(callback?: (error?: any)=>any) : LevelUpChain;
}

interface levelupOptions {
    createIfMissing?: boolean; 
    errorIfExists?: boolean; 
    compression?: boolean; 
    cacheSize?: number; 
    keyEncoding?: string; 
    valueEncoding?: string; 
    db?: string
}

declare module "levelup" {

    function levelup(hostname: string, options?: levelupOptions): LevelUp;
    
    export = levelup;
}

declare module "leveldown" {

    export function destroy(location: string, callback?: Function): void;
    export function repair(location: string, callback?: Function): void;
}