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apps/metamigo-worker/index.ts

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+import * as Worker from "graphile-worker";
+import { defState } from "@digiresilience/montar";
+import config from "config";
+import { initPgp } from "./db";
+import logger from "./logger";
+import workerUtils from "./utils";
+import { assertFfmpegAvailable } from "./lib/media-convert";
+
+const logFactory = (scope: any) => (level: any, message: any, meta: any) => {
+  const pinoLevel = level === "warning" ? "warn" : level;
+  const childLogger = logger.child({ scope });
+  if (meta) childLogger[pinoLevel](meta, message);
+  else childLogger[pinoLevel](message);
+};
+
+export const configWorker = async (): Promise<Worker.RunnerOptions> => {
+  const { connection, concurrency, pollInterval } = config.worker;
+  logger.info({ concurrency, pollInterval }, "Starting worker");
+  return {
+    concurrency,
+    pollInterval,
+    logger: new Worker.Logger(logFactory),
+    connectionString: connection,
+    // eslint-disable-next-line unicorn/prefer-module
+    taskDirectory: `${__dirname}/tasks`,
+  };
+};
+
+export const startWorker = async (): Promise<Worker.Runner> => {
+  // ensure ffmpeg is installed and working
+  await assertFfmpegAvailable();
+  logger.info("ffmpeg found");
+
+  await workerUtils.migrate();
+  logger.info("worker database migrated");
+
+  initPgp();
+
+  const workerConfig = await configWorker();
+  const worker = await Worker.run(workerConfig);
+  return worker;
+};
+
+export const stopWorker = async (): Promise<void> => {
+  await worker.stop();
+};
+
+const worker = defState("worker", {
+  start: startWorker,
+  stop: stopWorker,
+});
+
+export default worker;