Initial Commit

src/utils/logger.ts

@@ -0,0 +1,74 @@
+import fs from 'fs';
+import path from 'path';
+import { getAgentDir } from './paths';
+
+export type LogLevel = 'info' | 'warn' | 'error' | 'debug';
+
+class Logger {
+  private logFilePath: string;
+
+  constructor() {
+    const agentDir = getAgentDir();
+    if (!fs.existsSync(agentDir)) {
+      try {
+        fs.mkdirSync(agentDir, { recursive: true });
+      } catch (e) {
+        console.error('Failed to create agent directory for logs', e);
+      }
+    }
+    this.logFilePath = path.join(agentDir, 'app.log');
+  }
+
+  private formatMessage(level: LogLevel, message: string, ...args: unknown[]): string {
+    const timestamp = new Date().toISOString();
+    const formattedArgs = args
+      .map((arg) => (typeof arg === 'object' ? JSON.stringify(arg) : String(arg)))
+      .join(' ');
+    return `[${timestamp}] [${level.toUpperCase()}] ${message} ${formattedArgs}`;
+  }
+
+  private writeToFile(formattedMessage: string) {
+    try {
+      fs.appendFileSync(this.logFilePath, formattedMessage + '\n');
+    } catch (e) {
+      console.error('Failed to write to log file', e);
+    }
+  }
+
+  private writeToConsole(level: LogLevel, message: string, ...args: unknown[]) {
+    const colorMap: Record<LogLevel, string> = {
+      info: '\x1b[36m', // Cyan
+      warn: '\x1b[33m', // Yellow
+      error: '\x1b[31m', // Red
+      debug: '\x1b[90m', // Gray
+    };
+    const reset = '\x1b[0m';
+    const color = colorMap[level];
+
+    console.log(`${color}[${level.toUpperCase()}]${reset} ${message}`, ...args);
+  }
+
+  log(level: LogLevel, message: string, ...args: unknown[]) {
+    const formattedMessage = this.formatMessage(level, message, ...args);
+    this.writeToConsole(level, message, ...args);
+    this.writeToFile(formattedMessage);
+  }
+
+  info(message: string, ...args: unknown[]) {
+    this.log('info', message, ...args);
+  }
+
+  warn(message: string, ...args: unknown[]) {
+    this.log('warn', message, ...args);
+  }
+
+  error(message: string, ...args: unknown[]) {
+    this.log('error', message, ...args);
+  }
+
+  debug(message: string, ...args: unknown[]) {
+    this.log('debug', message, ...args);
+  }
+}
+
+export const logger = new Logger();