mrmBot-Matrix/shard.js

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// shard base
const { Base } = require("eris-sharder");
// path stuff
const { readdir } = require("fs").promises;
// fancy loggings
const logger = require("./utils/logger.js");
// initialize command loader
const handler = require("./utils/handler.js");
// lavalink stuff
const sound = require("./utils/soundplayer.js");
// image processing stuff
const image = require("./utils/image.js");
// database stuff
const database = require("./utils/database.js");
// command collections
const collections = require("./utils/collections.js");
// playing messages
const { messages } = require("./messages.json");
// other stuff
const misc = require("./utils/misc.js");
// generate help page
const helpGenerator =
process.env.OUTPUT !== "" ? require("./utils/help.js") : null;
const http = require("http");
class Shard extends Base {
constructor(bot) {
super(bot);
}
async init() {
// register commands and their info
const soundStatus = await sound.checkStatus();
logger.log("info", "Attempting to load commands...");
for await (const commandFile of this.getFiles("./commands/")) {
logger.log("log", `Loading command from ${commandFile}...`);
try {
await handler.load(commandFile, soundStatus);
} catch (e) {
logger.error(`Failed to register command from ${commandFile}: ${e}`);
}
}
// register events
const events = await readdir("./events/");
logger.log("info", `Attempting to load ${events.length} events...`);
for (const file of events) {
logger.log("log", `Loading event from ${file}...`);
const eventName = file.split(".")[0];
const event = require(`./events/${file}`);
this.bot.on(eventName, event.bind(null, this.bot, this.clusterID, this.ipc));
}
// connect to image api if enabled
if (process.env.API === "true") {
for (const server of image.servers) {
try {
await image.connect(server);
} catch (e) {
logger.error(e);
}
}
}
// generate docs
await helpGenerator.generateList();
if (this.clusterID === 0 && helpGenerator) {
await helpGenerator.createPage(process.env.OUTPUT);
logger.log("info", "The help docs have been generated.");
}
if (process.env.METRICS !== "" && process.env.METRICS !== undefined) {
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const httpServer = http.createServer(async (req, res) => {
if (req.method !== "GET") {
res.statusCode = 405;
return res.end("GET only");
}
res.write(`# HELP connected_workers Number of workers connected
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# TYPE connected_workers gauge
connected_workers ${image.connections.length}
# HELP running_jobs Number of running jobs on this worker
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# TYPE running_jobs gauge
# HELP queued_jobs Number of queued jobs on this worker
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# TYPE queued_jobs gauge
# HELP max_jobs Number of max allowed jobs on this worker
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# TYPE max_jobs gauge
# HELP command_count Number of times a command has been run
# TYPE command_count counter
`);
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const servers = await image.getStatus();
for (const [i, w] of servers.entries()) {
res.write(`running_jobs{worker="${i}"} ${w.runningJobs}\n`);
res.write(`queued_jobs{worker="${i}"} ${w.queued}\n`);
res.write(`max_jobs{worker="${i}"} ${w.max}\n`);
}
const counts = await database.getCounts();
for (const [i, w] of Object.entries(counts)) {
res.write(`command_count{command="${i}"} ${w}\n`);
}
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res.end();
});
httpServer.listen(process.env.METRICS, () => {
logger.log("info", `Serving metrics at ${process.env.METRICS}`);
});
}
// handle process stop
process.on("SIGINT", () => {
logger.log("warn", "SIGINT detected, shutting down...");
this.bot.editStatus("dnd", {
name: "Restarting/shutting down..."
});
for (const command in collections.commands) {
handler.unload(command);
}
this.bot.disconnect();
require("./utils/database.js").stop();
process.exit(0);
});
return;
}
async* getFiles(dir) {
const dirents = await readdir(dir, { withFileTypes: true });
for (const dirent of dirents) {
if (dirent.isDirectory()) {
yield* this.getFiles(dir + dirent.name);
} else {
yield dir + (dir.charAt(dir.length - 1) !== "/" ? "/" : "") + dirent.name;
}
}
}
async launch() {
await this.init();
this.ipc.register("stat", (message) => {
collections.stats = message;
});
this.ipc.register("restart", async () => {
await this.bot.editStatus("dnd", {
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name: "esmBot is restarting, please stand by."
});
process.exit(1);
});
this.ipc.register("reload", async (message) => {
const result = await handler.unload(message.cmd);
if (result) return this.ipc.broadcast("reloadFail", { result: result });
const result2 = await handler.load(collections.paths.get(message.cmd));
if (result2) return this.ipc.broadcast("reloadFail", { result: result2 });
return this.ipc.broadcast("reloadSuccess");
});
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// connect to lavalink
if (!sound.status && !sound.connected) await sound.connect(this.bot);
this.bot.privateChannels.limit = 0;
await database.setup();
// set activity (a.k.a. the gamer code)
(async function activityChanger() {
this.bot.editStatus("dnd", {
name: `${misc.random(messages)} | @${this.bot.user.username} help`,
});
setTimeout(activityChanger.bind(this), 900000);
}).bind(this)();
logger.log("info", `Started cluster ${this.clusterID}.`);
}
}
module.exports = Shard;