Initial commit: Supermarket scraper MVP

src/utils/errors.ts

@@ -0,0 +1,29 @@
+export class ScraperError extends Error {
+  constructor(
+    message: string,
+    public readonly code?: string,
+    public readonly statusCode?: number
+  ) {
+    super(message);
+    this.name = 'ScraperError';
+  }
+}
+
+export class DatabaseError extends Error {
+  constructor(message: string, public readonly originalError?: Error) {
+    super(message);
+    this.name = 'DatabaseError';
+  }
+}
+
+export class APIError extends Error {
+  constructor(
+    message: string,
+    public readonly statusCode: number,
+    public readonly response?: any
+  ) {
+    super(message);
+    this.name = 'APIError';
+  }
+}
+

src/utils/logger.ts

@@ -0,0 +1,20 @@
+export class Logger {
+  static info(message: string, ...args: any[]) {
+    console.log(`[INFO] ${new Date().toISOString()} - ${message}`, ...args);
+  }
+
+  static error(message: string, ...args: any[]) {
+    console.error(`[ERROR] ${new Date().toISOString()} - ${message}`, ...args);
+  }
+
+  static warn(message: string, ...args: any[]) {
+    console.warn(`[WARN] ${new Date().toISOString()} - ${message}`, ...args);
+  }
+
+  static debug(message: string, ...args: any[]) {
+    if (process.env.DEBUG === 'true') {
+      console.log(`[DEBUG] ${new Date().toISOString()} - ${message}`, ...args);
+    }
+  }
+}
+