new version

apps/api/src/lib/logger.ts

@@ -0,0 +1,38 @@
+import { generateUlid } from '../utils/ulid';
+import { getTraceId } from './trace-store';
+
+const instanceId = generateUlid();
+
+function getCallerInfo(): { file: string; line: number } {
+  const stack = new Error().stack;
+  if (!stack) return { file: 'unknown', line: 0 };
+
+  const lines = stack.split('\n');
+  // Skip: Error, logger method, actual caller
+  const callerLine = lines[3] || '';
+  const match = callerLine.match(/\((.+):(\d+):\d+\)/) || callerLine.match(/at (.+):(\d+):\d+/);
+  if (match) return { file: match[1], line: parseInt(match[2]) };
+  return { file: 'unknown', line: 0 };
+}
+
+function log(level: string, message: string): void {
+  const caller = getCallerInfo();
+  const entry = {
+    timestamp: new Date().toISOString(),
+    level,
+    instance_id: instanceId,
+    file: caller.file,
+    line: caller.line,
+    trace_id: getTraceId(),
+    message,
+  };
+  process.stdout.write(JSON.stringify(entry) + '\n');
+}
+
+export const logger = {
+  instanceId,
+  info: (msg: string) => log('INFO', msg),
+  warn: (msg: string) => log('WARN', msg),
+  error: (msg: string) => log('ERROR', msg),
+  debug: (msg: string) => log('DEBUG', msg),
+};

apps/api/src/lib/trace-store.ts

@@ -0,0 +1,7 @@
+import { AsyncLocalStorage } from 'node:async_hooks';
+
+export const traceStore = new AsyncLocalStorage<string>();
+
+export function getTraceId(): string {
+  return traceStore.getStore() || 'N/A';
+}