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nyx/bot/mod.ts

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import { Grammy, GrammyAutoQuote, GrammyFiles, GrammyParseMode, Log } from "../deps.ts";
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import { formatUserChat } from "../utils.ts";
import { session, SessionFlavor } from "./session.ts";
import { queueCommand } from "./queueCommand.ts";
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import { txt2imgCommand, txt2imgQuestion } from "./txt2imgCommand.ts";
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import { pnginfoCommand, pnginfoQuestion } from "./pnginfoCommand.ts";
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import { img2imgCommand, img2imgQuestion } from "./img2imgCommand.ts";
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export const logger = () => Log.getLogger();
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type WithRetryApi<T extends Grammy.RawApi> = {
[M in keyof T]: T[M] extends (args: infer P, ...rest: infer A) => infer R
? (args: P extends object ? P & { maxAttempts?: number } : P, ...rest: A) => R
: T[M];
};
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export type Context =
& GrammyFiles.FileFlavor<GrammyParseMode.ParseModeFlavor<Grammy.Context>>
& SessionFlavor;
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export const bot = new Grammy.Bot<Context, Grammy.Api<WithRetryApi<Grammy.RawApi>>>(
Deno.env.get("TG_BOT_TOKEN") ?? "",
);
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bot.use(GrammyAutoQuote.autoQuote);
bot.use(GrammyParseMode.hydrateReply);
bot.use(session);
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bot.api.config.use(GrammyFiles.hydrateFiles(bot.token));
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// Automatically retry bot requests if we get a "too many requests" or telegram internal error
bot.api.config.use(async (prev, method, payload, signal) => {
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const maxAttempts = payload && ("maxAttempts" in payload) ? payload.maxAttempts ?? 3 : 3;
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let attempt = 0;
while (true) {
attempt++;
const result = await prev(method, payload, signal);
if (
result.ok ||
![429, 500].includes(result.error_code) ||
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attempt >= maxAttempts
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) {
return result;
}
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logger().warning(
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`${method} (attempt ${attempt}) failed: ${result.error_code} ${result.description}`,
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);
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const retryAfterMs = (result.parameters?.retry_after ?? (attempt * 5)) * 1000;
await new Promise((resolve) => setTimeout(resolve, retryAfterMs));
}
});
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bot.catch((err) => {
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logger().error(
`Handling update from ${formatUserChat(err.ctx)} failed: ${err.name} ${err.message}`,
);
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});
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// if error happened, try to reply to the user with the error
bot.use(async (ctx, next) => {
try {
await next();
} catch (err) {
try {
await ctx.reply(`Handling update failed: ${err}`, {
reply_to_message_id: ctx.message?.message_id,
});
} catch {
throw err;
}
}
});
bot.api.setMyShortDescription("I can generate furry images from text");
bot.api.setMyDescription(
"I can generate furry images from text. " +
"Send /txt2img to generate an image.",
);
bot.api.setMyCommands([
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{ command: "txt2img", description: "Generate an image from text" },
{ command: "img2img", description: "Generate an image based on another image" },
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{ command: "pnginfo", description: "Show generation parameters of an image" },
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{ command: "queue", description: "Show the current queue" },
]);
bot.command("start", (ctx) => ctx.reply("Hello! Use the /txt2img command to generate an image"));
bot.command("txt2img", txt2imgCommand);
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bot.use(txt2imgQuestion.middleware());
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bot.command("img2img", img2imgCommand);
bot.use(img2imgQuestion.middleware());
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bot.command("pnginfo", pnginfoCommand);
bot.use(pnginfoQuestion.middleware());
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bot.command("queue", queueCommand);
bot.command("pause", (ctx) => {
if (!ctx.from?.username) return;
const config = ctx.session.global;
if (!config.adminUsernames.includes(ctx.from.username)) return;
if (config.pausedReason != null) {
return ctx.reply(`Already paused: ${config.pausedReason}`);
}
config.pausedReason = ctx.match ?? "No reason given";
logger().warning(`Bot paused by ${ctx.from.first_name} because ${config.pausedReason}`);
return ctx.reply("Paused");
});
bot.command("resume", (ctx) => {
if (!ctx.from?.username) return;
const config = ctx.session.global;
if (!config.adminUsernames.includes(ctx.from.username)) return;
if (config.pausedReason == null) return ctx.reply("Already running");
config.pausedReason = null;
logger().info(`Bot resumed by ${ctx.from.first_name}`);
return ctx.reply("Resumed");
});
bot.command("crash", () => {
throw new Error("Crash command used");
});