// Type definitions for isomorphic-fetch
// Project: https://github.com/matthew-andrews/isomorphic-fetch
// Definitions by: Todd Lucas <https://github.com/toddlucas>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

declare enum RequestContext {
    "audio", "beacon", "cspreport", "download", "embed", "eventsource",
    "favicon", "fetch", "font", "form", "frame", "hyperlink", "iframe",
    "image", "imageset", "import", "internal", "location", "manifest",
    "object", "ping", "plugin", "prefetch", "script", "serviceworker",
    "sharedworker", "subresource", "style", "track", "video", "worker",
    "xmlhttprequest", "xslt"
}
declare enum RequestMode { "same-origin", "no-cors", "cors" }
declare enum RequestCredentials { "omit", "same-origin", "include" }
declare enum RequestCache {
    "default", "no-store", "reload", "no-cache", "force-cache",
    "only-if-cached"
}
declare enum ResponseType { "basic", "cors", "default", "error", "opaque" }

declare type HeaderInit = Headers | Array<string>;
declare type BodyInit = Blob | FormData | string;
declare type RequestInfo = Request | string;

interface RequestInit {
    method?: string;
    headers?: HeaderInit | { [index: string]: string };
    body?: BodyInit;
    mode?: string | RequestMode;
    credentials?: string | RequestCredentials;
    cache?: string | RequestCache;
}

interface IHeaders {
    get(name: string): string;
    getAll(name: string): Array<string>;
    has(name: string): boolean;
}

declare class Headers implements IHeaders {
    append(name: string, value: string): void;
    delete(name: string):void;
    get(name: string): string;
    getAll(name: string): Array<string>;
    has(name: string): boolean;
    set(name: string, value: string): void;
}

interface IBody {
    bodyUsed: boolean;
    arrayBuffer(): Promise<ArrayBuffer>;
    blob(): Promise<Blob>;
    formData(): Promise<FormData>;
    json(): Promise<any>;
    json<T>(): Promise<T>;
    text(): Promise<string>;
}

declare class Body implements IBody {
    bodyUsed: boolean;
    arrayBuffer(): Promise<ArrayBuffer>;
    blob(): Promise<Blob>;
    formData(): Promise<FormData>;
    json(): Promise<any>;
    json<T>(): Promise<T>;
    text(): Promise<string>;
}

interface IRequest extends IBody {
    method: string;
    url: string;
    headers: Headers;
    context: string | RequestContext;
    referrer: string;
    mode: string | RequestMode;
    credentials: string | RequestCredentials;
    cache: string | RequestCache;
}

declare class Request extends Body implements IRequest {
    constructor(input: string | Request, init?: RequestInit);
    method: string;
    url: string;
    headers: Headers;
    context: string | RequestContext;
    referrer: string;
    mode: string | RequestMode;
    credentials: string | RequestCredentials;
    cache: string | RequestCache;
}

interface IResponse extends IBody {
    url: string;
    status: number;
    statusText: string;
    ok: boolean;
    headers: IHeaders;
    type: string | ResponseType;
    size: number;
    timeout: number;
    redirect(url: string, status: number): IResponse;
    error(): IResponse;
    clone(): IResponse;
}

interface IFetchStatic {
    Promise: any;
    Headers: IHeaders
    Request: IRequest;
    Response: IResponse;
    (url: string | IRequest, init?: RequestInit): Promise<IResponse>;
}

declare module "isomorphic-fetch" {
    export default IFetchStatic;
}

declare var fetch: IFetchStatic;