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// === Needed importsimport { type InputFileProxy } from "@grammyjs/types";import { Agent as HttpAgent } from "http";import { Agent as HttpsAgent } from "https";import fetch from "node-fetch";import { basename } from "path";import { Readable } from "stream";import { type ReadStream } from "fs";import { URL } from "url";import { createReadStream } from "fs";
// === Export all API typesexport * from "@grammyjs/types";
// === Export debugimport { debug as d } from "debug";export { d as debug };const debug = d("grammy:warn");
// === Export system-specific operations// Turn an AsyncIterable<Uint8Array> into a streamexport const itrToStream = (itr: AsyncIterable<Uint8Array>) =>    Readable.from(itr, { objectMode: false });
// === Base configuration for `fetch` callsexport function baseFetchConfig(apiRoot: string) {    if (apiRoot.startsWith("https:")) {        return { compress: true, agent: new HttpsAgent({ keepAlive: true }) };    } else if (apiRoot.startsWith("http:")) {        return { agent: new HttpAgent({ keepAlive: true }) };    } else return {};}
/** Something that looks like a URL. */interface URLLike {    /**     * Identifier of the resource. Must be in a format that can be parsed by the     * URL constructor.     */    url: string;}
// === InputFile handling and File augmenting// Accessor for file data in `InputFile` instancesexport const toRaw = Symbol("InputFile data");
/** * An `InputFile` wraps a number of different sources for [sending * files](https://grammy.dev/guide/files.html#uploading-your-own-file). * * It corresponds to the `InputFile` type in the [Telegram Bot API * Reference](https://core.telegram.org/bots/api#inputfile). */export class InputFile {    private consumed = false;    private readonly fileData: ConstructorParameters<typeof InputFile>[0];    /**     * Optional name of the constructed `InputFile` instance.     *     * Check out the     * [documenation](https://grammy.dev/guide/files.html#uploading-your-own-file)     * on sending files with `InputFile`.     */    public readonly filename?: string;    /**     * Constructs an `InputFile` that can be used in the API to send files.     *     * @param file A path to a local file or a `Buffer` or a `fs.ReadStream` that specifies the file data     * @param filename Optional name of the file     */    constructor(        file:            | string            | URL            | URLLike            | Uint8Array            | ReadStream            | Iterable<Uint8Array>            | AsyncIterable<Uint8Array>,        filename?: string,    ) {        this.fileData = file;        filename ??= this.guessFilename(file);        this.filename = filename;        if (            typeof file === "string" &&            (file.startsWith("http:") || file.startsWith("https:"))        ) {            debug(                `InputFile received the local file path '${file}' that looks like a URL. Is this a mistake?`,            );        }    }    private guessFilename(        file: ConstructorParameters<typeof InputFile>[0],    ): string | undefined {        if (typeof file === "string") return basename(file);        if (typeof file !== "object") return undefined;        if ("url" in file) return basename(file.url);        if (!(file instanceof URL)) return undefined;        return basename(file.pathname) || basename(file.hostname);    }    [toRaw](): Uint8Array | Iterable<Uint8Array> | AsyncIterable<Uint8Array> {        if (this.consumed) {            throw new Error("Cannot reuse InputFile data source!");        }        const data = this.fileData;        // Handle local files        if (typeof data === "string") return createReadStream(data);        // Handle URLs and URLLike objects        if (data instanceof URL) {            return data.protocol === "file" // node-fetch does not support file URLs                ? createReadStream(data.pathname)                : fetchFile(data);        }        if ("url" in data) return fetchFile(data.url);        // Mark streams and iterators as consumed        if (!(data instanceof Uint8Array)) this.consumed = true;        // Return buffers and byte streams as-is        return data;    }}
async function* fetchFile(url: string | URL): AsyncIterable<Uint8Array> {    const { body } = await fetch(url);    for await (const chunk of body) {        if (typeof chunk === "string") {            throw new Error(                `Could not transfer file, received string data instead of bytes from '${url}'`,            );        }        yield chunk;    }}
// === Export InputFile typestype GrammyTypes = InputFileProxy<InputFile>;
/** Wrapper type to bundle all methods of the Telegram API */export type Telegram = GrammyTypes["Telegram"];
/** Utility type providing the argument type for the given method name or `{}` if the method does not take any parameters */export type Opts<M extends keyof GrammyTypes["Telegram"]> =    GrammyTypes["Opts"][M];
/** This object represents the content of a media message to be sent. It should be one of- InputMediaAnimation- InputMediaDocument- InputMediaAudio- InputMediaPhoto- InputMediaVideo */export type InputMedia = GrammyTypes["InputMedia"];/** Represents a photo to be sent. */export type InputMediaPhoto = GrammyTypes["InputMediaPhoto"];/** Represents a video to be sent. */export type InputMediaVideo = GrammyTypes["InputMediaVideo"];/** Represents an animation file (GIF or H.264/MPEG-4 AVC video without sound) to be sent. */export type InputMediaAnimation = GrammyTypes["InputMediaAnimation"];/** Represents an audio file to be treated as music to be sent. */export type InputMediaAudio = GrammyTypes["InputMediaAudio"];/** Represents a general file to be sent. */export type InputMediaDocument = GrammyTypes["InputMediaDocument"];