backend feladat

Backend/elso gyakorlat/src/Infrastructure/userRepository.js

@@ -0,0 +1,60 @@
+import fs from 'fs/promises';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import { IUserRepository } from '../Domain/IUserRepository.js';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const USER_FILE = path.join(__dirname, 'user.json');
+
+export class UserRepository extends IUserRepository {
+  async getAll() {
+    try {
+      const data = await fs.readFile(USER_FILE, 'utf-8');
+      return JSON.parse(data);
+    } catch (error) {
+      return [];
+    }
+  }
+
+  async getById(id) {
+    const users = await this.getAll();
+    return users.find(user => user.id === id);
+  }
+
+  async create(user) {
+    const users = await this.getAll();
+    const newUser = {
+      id: Date.now().toString(),
+      ...user,
+      createdAt: new Date().toISOString()
+    };
+    users.push(newUser);
+    await fs.writeFile(USER_FILE, JSON.stringify(users, null, 2));
+    return newUser;
+  }
+
+  async update(id, userData) {
+    const users = await this.getAll();
+    const index = users.findIndex(user => user.id === id);
+    if (index === -1) return null;
+    
+    users[index] = {
+      ...users[index],
+      ...userData,
+      id: users[index].id,
+      updatedAt: new Date().toISOString()
+    };
+    await fs.writeFile(USER_FILE, JSON.stringify(users, null, 2));
+    return users[index];
+  }
+
+  async delete(id) {
+    const users = await this.getAll();
+    const filteredUsers = users.filter(user => user.id !== id);
+    if (users.length === filteredUsers.length) return false;
+    
+    await fs.writeFile(USER_FILE, JSON.stringify(filteredUsers, null, 2));
+    return true;
+  }
+}