import { Readable } from 'node:stream';
import { APIMethods, APIMethodParams, TelegramInputFile, TelegramInputMediaAnimation, TelegramInputMediaDocument, TelegramInputMediaAudio, TelegramInputMediaPhoto, TelegramInputMediaVideo } from '@gramio/types';

/** Guard to check is method used for File Uploading */
declare function isMediaUpload<T extends keyof APIMethods>(method: T, params: NonNullable<APIMethodParams<T>>): boolean;
/**
 * Helper to convert JSON to FormData that can accept Telegram Bot API.
 * if File is not top-level property it will be `“attach://<file_attach_name>”`
 *
 * [Documentation](https://core.telegram.org/bots/api#inputfile)
 */
declare function convertJsonToFormData<T extends keyof APIMethods>(method: T, params: NonNullable<APIMethodParams<T>>): Promise<FormData>;
/**
 * Helper to extract files from params and convert them to FormData. (Similar to {@link convertJsonToFormData})
 * if File is not top-level property it will be `“attach://<file_attach_name>”`
 *
 * [Documentation](https://core.telegram.org/bots/api#inputfile)
 */
declare function extractFilesToFormData<T extends keyof APIMethods>(method: T, params: NonNullable<APIMethodParams<T>>): Promise<[FormData | undefined, NonNullable<APIMethodParams<T>>]>;
/** Helper for convert Readable stream to buffer */
declare function convertStreamToBuffer(stream: Readable): Promise<Buffer>;

type Extractor = {
    name: string;
    type: "array" | "union";
    property: string;
};
type MethodsWithMediaUpload = {
    [Method in keyof APIMethods]?: [
        (params: NonNullable<APIMethodParams<Method>>) => boolean,
        Extractor[] | null
    ];
};
/** Guard to check is it {@link Blob} or {@link Promise} */
declare function isBlob(blob?: TelegramInputFile | object | string): boolean;
/**
 * A set of methods with the function of checking whether a {@link File} has been passed in the parameters
 *
 * @codegenerated
 * */
declare const MEDIA_METHODS: MethodsWithMediaUpload;

/**
 *  Class-helper with static methods that represents the content of a media message to be sent.
 *
 * [Documentation](https://gramio.dev/files/media-input.html)
 */
declare class MediaInput {
    /**
     * Represents an animation file (GIF or H.264/MPEG-4 AVC video without sound) to be sent.
     *
     * [Documentation](https://core.telegram.org/bots/api/#inputmediaanimation)
     */
    static animation(media: TelegramInputMediaAnimation["media"], options?: Omit<TelegramInputMediaAnimation, "media" | "type">): TelegramInputMediaAnimation;
    /**
     * Represents a general file to be sent.
     *
     * [Documentation](https://core.telegram.org/bots/api/#inputmediadocument)
     */
    static document(media: TelegramInputMediaDocument["media"], options?: Omit<TelegramInputMediaDocument, "media" | "type">): TelegramInputMediaDocument;
    /**
     * Represents an audio file to be treated as music to be sent.
     *
     * [Documentation](https://core.telegram.org/bots/api/#inputmediaaudio)
     */
    static audio(media: TelegramInputMediaAudio["media"], options?: Omit<TelegramInputMediaAudio, "media" | "type">): TelegramInputMediaAudio;
    /**
     * Represents a photo to be sent.
     *
     * [Documentation](https://core.telegram.org/bots/api/#inputmediaphoto)
     */
    static photo(media: TelegramInputMediaPhoto["media"], options?: Omit<TelegramInputMediaPhoto, "media" | "type">): TelegramInputMediaPhoto;
    /**
     * Represents a video to be sent.
     *
     * [Documentation](https://core.telegram.org/bots/api/#inputmediavideo)
     */
    static video(media: TelegramInputMediaVideo["media"], options?: Omit<TelegramInputMediaVideo, "media" | "type">): TelegramInputMediaVideo;
}

/**
 * Class-helper with static methods for file uploading.
 *
 * [Documentation](https://gramio.dev/files/media-upload.html)
 */
declare class MediaUpload {
    /**
     * Method for uploading Media File by local path.
     */
    static path(path: string, filename?: string): Promise<File>;
    /**
     * Method for uploading Media File by Readable stream.
     */
    static stream(stream: Readable | ReadableStream, filename?: string): Promise<File>;
    /**
     * Method for uploading Media File by BinaryLike (Buffer or ArrayBuffer and etc).
     */
    static buffer(buffer: Exclude<BufferSource | ArrayBuffer, string>, filename?: string): File;
    /**
     * Method for uploading Media File by URL (also with fetch options).
     */
    static url(url: URL | string, filename?: string, options?: RequestInit): Promise<File>;
    /**
     * Method for uploading Media File by text content.
     */
    static text(text: string, filename?: string): File;
}

export { MEDIA_METHODS, MediaInput, MediaUpload, convertJsonToFormData, convertStreamToBuffer, extractFilesToFormData, isBlob, isMediaUpload };