// Type definitions for Node Sass v3.10.1
// Project: https://github.com/sass/node-sass
// Definitions by: Asana <https://asana.com>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

/// <reference types="node" />

type ImporterReturnType = { file: string } | { contents: string } | Error | null;

interface Importer {
    (url: string, prev: string, done: (data: ImporterReturnType) => void): ImporterReturnType | void;
}

interface Options {
    file?: string;
    data?: string;
    importer?: Importer | Importer[];
    functions?: { [key: string]: Function };
    includePaths?: string[];
    indentedSyntax?: boolean;
    indentType?: string;
    indentWidth?: number;
    linefeed?: string;
    omitSourceMapUrl?: boolean;
    outFile?: string;
    outputStyle?: "compact" | "compressed" | "expanded" | "nested";
    precision?: number;
    sourceComments?: boolean;
    sourceMap?: boolean | string;
    sourceMapContents?: boolean;
    sourceMapEmbed?: boolean;
    sourceMapRoot?: string;
}

interface SassError extends Error {
    message: string;
    line: number;
    column: number;
    status: number;
    file: string;
}

interface Result {
    css: Buffer;
    map: Buffer;
    stats: {
        entry: string;
        start: number;
        end: number;
        duration: number;
        includedFiles: string[];
    }
}

export declare function render(options: Options, callback: (err: SassError, result: Result) => any): void;
export declare function renderSync(options: Options): Result;