File size: 2,489 Bytes
f8b5d42 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 | const path = require("path");
const Graceful = require("@ladjs/graceful");
const Bree = require("@mintplex-labs/bree");
const setLogger = require("../logger");
class BackgroundService {
name = "BackgroundWorkerService";
static _instance = null;
documentSyncEnabled = false;
#root = path.resolve(__dirname, "../../jobs");
#alwaysRunJobs = [
{
name: "cleanup-orphan-documents",
timeout: "1m",
interval: "12hr",
},
];
#documentSyncJobs = [
// Job for auto-sync of documents
// https://github.com/breejs/bree
{
name: "sync-watched-documents",
interval: "1hr",
},
];
constructor() {
if (BackgroundService._instance) {
this.#log("SINGLETON LOCK: Using existing BackgroundService.");
return BackgroundService._instance;
}
this.logger = setLogger();
BackgroundService._instance = this;
}
#log(text, ...args) {
console.log(`\x1b[36m[${this.name}]\x1b[0m ${text}`, ...args);
}
async boot() {
const { DocumentSyncQueue } = require("../../models/documentSyncQueue");
this.documentSyncEnabled = await DocumentSyncQueue.enabled();
const jobsToRun = this.jobs();
this.#log("Starting...");
this.bree = new Bree({
logger: this.logger,
root: this.#root,
jobs: jobsToRun,
errorHandler: this.onError,
workerMessageHandler: this.onWorkerMessageHandler,
runJobsAs: "process",
});
this.graceful = new Graceful({ brees: [this.bree], logger: this.logger });
this.graceful.listen();
this.bree.start();
this.#log(
`Service started with ${jobsToRun.length} jobs`,
jobsToRun.map((j) => j.name)
);
}
async stop() {
this.#log("Stopping...");
if (!!this.graceful && !!this.bree) this.graceful.stopBree(this.bree, 0);
this.bree = null;
this.graceful = null;
this.#log("Service stopped");
}
/** @returns {import("@mintplex-labs/bree").Job[]} */
jobs() {
const activeJobs = [...this.#alwaysRunJobs];
if (this.documentSyncEnabled) activeJobs.push(...this.#documentSyncJobs);
return activeJobs;
}
onError(error, _workerMetadata) {
this.logger.error(`${error.message}`, {
service: "bg-worker",
origin: error.name,
});
}
onWorkerMessageHandler(message, _workerMetadata) {
this.logger.info(`${message.message}`, {
service: "bg-worker",
origin: message.name,
});
}
}
module.exports.BackgroundService = BackgroundService;
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