feat: add winston logger (#143)

* feat: add winston logger

* refactor: improve usage of winston logger overide, remove start.js file and logger.js file used for override

* fix: formatting

* fix: formatting

packages/log/src/index.d.ts

@@ -0,0 +1,4 @@
+import type { Logger } from "winston";
+
+// The following is just to make prettier happy
+export const logger: Logger = undefined as unknown as Logger;

packages/log/src/index.mjs

@@ -0,0 +1,16 @@
+import winston, { format, transports } from "winston";
+
+const logMessageFormat = format.printf(({ level, message, timestamp }) => {
+  return `${timestamp} ${level}: ${message}`;
+});
+
+const logger = winston.createLogger({
+  format: format.combine(
+    format.colorize(),
+    format.timestamp(),
+    logMessageFormat,
+  ),
+  transports: [new transports.Console()],
+});
+
+export { logger };

packages/log/src/override.cjs

@@ -0,0 +1,45 @@
+void (async () => {
+  const { logger } = await import("./index.mjs");
+
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-var-requires
+  const nextLogger = require("next/dist/build/output/log");
+
+  const getWinstonMethodForConsole = (consoleMethod) => {
+    switch (consoleMethod) {
+      case "error":
+        return (...messages) => logger.error(messages.join(" "));
+      case "warn":
+        return (...messages) => logger.warn(messages.join(" "));
+      case "debug":
+        return (...messages) => logger.debug(messages.join(" "));
+      case "log":
+      case "info":
+      default:
+        return (...messages) => logger.info(messages.join(" "));
+    }
+  };
+
+  const consoleMethods = ["log", "debug", "info", "warn", "error"];
+  consoleMethods.forEach((method) => {
+    console[method] = getWinstonMethodForConsole(method);
+  });
+
+  const getWinstonMethodForNext = (nextMethod) => {
+    switch (nextMethod) {
+      case "error":
+        return (...messages) => logger.error(messages.join(" "));
+      case "warn":
+        return (...messages) => logger.warn(messages.join(" "));
+      case "trace":
+        return (...messages) => logger.info(messages.join(" "));
+      default:
+        return (...messages) => logger.info(messages.join(" "));
+    }
+  };
+
+  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument, @typescript-eslint/no-unsafe-member-access
+  Object.keys(nextLogger.prefixes).forEach((method) => {
+    // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+    nextLogger[method] = getWinstonMethodForNext(method);
+  });
+})();