feat: initialize frontend with Vite and PWA support

- Add index.html as the main entry point for the application. - Create package.json to manage dependencies and scripts for development. - Include favicon.svg for the application icon. - Configure PWA assets generation with pwa-assets.config.js. - Implement counter functionality in counter.js with notification on reaching 5. - Add JavaScript logo SVG for branding. - Set up main.js to render the application and handle user interactions. - Create notification.js to manage browser notifications. - Implement PWA registration and update handling in pwa.js. - Style the application with a new style.css file. - Configure Vite with PWA plugin in vite.config.js for service worker and manifest settings.
2025-05-23 16:18:52 +02:00
commit 0394a7aceb
32 changed files with 2615 additions and 0 deletions
@@ -0,0 +1,34 @@
+# dependencies (bun install)
+node_modules
+
+# output
+out
+dist
+*.tgz
+
+# code coverage
+coverage
+*.lcov
+
+# logs
+logs
+_.log
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# caches
+.eslintcache
+.cache
+*.tsbuildinfo
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store
@@ -0,0 +1,15 @@
+# backend
+
+To install dependencies:
+
+```bash
+bun install
+```
+
+To run:
+
+```bash
+bun run index.ts
+```
+
+This project was created using `bun init` in bun v1.2.13. [Bun](https://bun.sh) is a fast all-in-one JavaScript runtime.
@@ -0,0 +1,307 @@
+{
+  "lockfileVersion": 1,
+  "workspaces": {
+    "": {
+      "name": "backend",
+      "dependencies": {
+        "bcrypt": "^6.0.0",
+        "jsonwebtoken": "^9.0.2",
+        "koa": "^3.0.0",
+        "koa-bodyparser": "^4.4.1",
+        "koa-jwt": "^4.0.4",
+        "koa-router": "^13.0.1",
+        "mongodb": "^6.16.0",
+      },
+      "devDependencies": {
+        "@types/bcrypt": "^5.0.2",
+        "@types/bun": "latest",
+        "@types/jsonwebtoken": "^9.0.9",
+        "@types/koa": "^2.15.0",
+        "@types/koa-bodyparser": "^4.3.12",
+        "@types/koa-router": "^7.4.8",
+      },
+      "peerDependencies": {
+        "typescript": "^5",
+      },
+    },
+  },
+  "packages": {
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+
+    "http-assert/http-errors": ["http-errors@1.8.1", "", { "dependencies": { "depd": "~1.1.2", "inherits": "2.0.4", "setprototypeof": "1.2.0", "statuses": ">= 1.5.0 < 2", "toidentifier": "1.0.1" } }, "sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g=="],
+
+    "koa-bodyparser/type-is": ["type-is@1.6.18", "", { "dependencies": { "media-typer": "0.3.0", "mime-types": "~2.1.24" } }, "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g=="],
+
+    "type-is/mime-types": ["mime-types@3.0.1", "", { "dependencies": { "mime-db": "^1.54.0" } }, "sha512-xRc4oEhT6eaBpU1XF7AjpOFD+xQmXNB5OVKwp4tqCuBpHLS/ZbBDrc07mYTDqVMg6PfxUjjNp85O6Cd2Z/5HWA=="],
+
+    "co-body/type-is/media-typer": ["media-typer@0.3.0", "", {}, "sha512-dq+qelQ9akHpcOl/gUVRTxVIOkAJ1wR3QAvb4RsVjS8oVoFjDGTc679wJYmUmknUF5HwMLOgb5O+a3KxfWapPQ=="],
+
+    "http-assert/http-errors/depd": ["depd@1.1.2", "", {}, "sha512-7emPTl6Dpo6JRXOXjLRxck+FlLRX5847cLKEn00PLAgc3g2hTZZgr+e4c2v6QpSmLeFP3n5yUo7ft6avBK/5jQ=="],
+
+    "http-assert/http-errors/statuses": ["statuses@1.5.0", "", {}, "sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA=="],
+
+    "koa-bodyparser/type-is/media-typer": ["media-typer@0.3.0", "", {}, "sha512-dq+qelQ9akHpcOl/gUVRTxVIOkAJ1wR3QAvb4RsVjS8oVoFjDGTc679wJYmUmknUF5HwMLOgb5O+a3KxfWapPQ=="],
+
+    "type-is/mime-types/mime-db": ["mime-db@1.54.0", "", {}, "sha512-aU5EJuIN2WDemCcAp2vFBfp/m4EAhWJnUNSSw0ixs7/kXbd6Pg64EmwJkNdFhB8aWt1sH2CTXrLxo/iAGV3oPQ=="],
+  }
+}
@@ -0,0 +1,2 @@
+// Import and run the Koa.js application
+import './src/app';
@@ -0,0 +1,26 @@
+{
+  "name": "backend",
+  "module": "index.ts",
+  "type": "module",
+  "private": true,
+  "devDependencies": {
+    "@types/bcrypt": "^5.0.2",
+    "@types/bun": "latest",
+    "@types/jsonwebtoken": "^9.0.9",
+    "@types/koa": "^2.15.0",
+    "@types/koa-bodyparser": "^4.3.12",
+    "@types/koa-router": "^7.4.8"
+  },
+  "peerDependencies": {
+    "typescript": "^5"
+  },
+  "dependencies": {
+    "bcrypt": "^6.0.0",
+    "jsonwebtoken": "^9.0.2",
+    "koa": "^3.0.0",
+    "koa-bodyparser": "^4.4.1",
+    "koa-jwt": "^4.0.4",
+    "koa-router": "^13.0.1",
+    "mongodb": "^6.16.0"
+  }
+}
@@ -0,0 +1,55 @@
+import Koa from 'koa';
+import bodyParser from 'koa-bodyparser';
+import router from './routes';
+import { authenticate, handleJwtError } from './middleware/auth';
+import DatabaseService from './services/database';
+
+const app = new Koa();
+const PORT = process.env.PORT || 3000;
+const db = DatabaseService.getInstance();
+
+// Connect to database
+db.connect()
+    .then(() => {
+        console.log('Database connection established');
+    })
+    .catch(err => {
+        console.error('Database connection failed:', err);
+        process.exit(1);
+    });
+
+// Middlewares
+app.use(bodyParser());
+app.use(handleJwtError);
+app.use(authenticate);
+app.use(router.routes());
+app.use(router.allowedMethods());
+
+// Error handling
+app.on('error', (err, ctx) => {
+    console.error('Server error:', err);
+    ctx.status = err.status || 500;
+    ctx.body = {
+        success: false,
+        message: err.message || 'Internal server error'
+    };
+});
+
+// Start server
+app.listen(PORT, () => {
+    console.log(`Server running on http://localhost:${PORT}`);
+});
+
+// Handle graceful shutdown
+process.on('SIGINT', async () => {
+    console.log('Shutting down server...');
+    try {
+        await db.disconnect();
+        process.exit(0);
+    } catch (error) {
+        console.error('Error during shutdown:', error);
+        process.exit(1);
+    }
+});
+
+export default app;
@@ -0,0 +1,9 @@
+export default {
+  uri: process.env.MONGODB_URI || 'mongodb://localhost:27017',
+  dbName: process.env.MONGODB_DB_NAME || 'budget-manager',
+  collections: {
+    users: 'users',
+    transactions: 'transactions',
+    categories: 'categories'
+  }
+};
@@ -0,0 +1,4 @@
+export default {
+  secret: process.env.JWT_SECRET || 'your-secret-key-change-this-in-production',
+  expiresIn: '1d', // Token expires in 1 day
+};
@@ -0,0 +1,85 @@
+import type { Context } from 'koa';
+import bcrypt from 'bcrypt';
+import jwt, { type Secret } from 'jsonwebtoken';
+import jwtConfig from '../config/jwt';
+
+// Mock user database (in a real app, use a proper database)
+const users = new Map();
+
+export default {
+    // User registration
+    async register(ctx: Context) {
+        const { username, password } = ctx.request.body as { username: string, password: string };
+
+        // Validate input
+        if (!username || !password) {
+            ctx.status = 400;
+            ctx.body = { success: false, message: 'Username and password are required' };
+            return;
+        }
+
+        // Check if user already exists
+        if (users.has(username)) {
+            ctx.status = 409;
+            ctx.body = { success: false, message: 'Username already exists' };
+            return;
+        }
+
+        // Hash password before saving
+        const salt = await bcrypt.genSalt(10);
+        const hashedPassword = await bcrypt.hash(password, salt);
+
+        // Save user to database
+        users.set(username, {
+            username,
+            password: hashedPassword
+        });
+
+        ctx.status = 201;
+        ctx.body = {
+            success: true,
+            message: 'User registered successfully'
+        };
+    },
+
+    // User login
+    async login(ctx: Context) {
+        const { username, password } = ctx.request.body as { username: string, password: string };
+
+        // Validate input
+        if (!username || !password) {
+            ctx.status = 400;
+            ctx.body = { success: false, message: 'Username and password are required' };
+            return;
+        }
+
+        // Check if user exists
+        const user = users.get(username);
+        if (!user) {
+            ctx.status = 401;
+            ctx.body = { success: false, message: 'Invalid credentials' };
+            return;
+        }
+
+        // Verify password
+        const isPasswordValid = await bcrypt.compare(password, user.password);
+        if (!isPasswordValid) {
+            ctx.status = 401;
+            ctx.body = { success: false, message: 'Invalid credentials' };
+            return;
+        }
+
+        // Generate JWT token
+        const token = jwt.sign(
+            { username: user.username },
+            jwtConfig.secret as Secret,
+            { expiresIn: jwtConfig.expiresIn }
+        );
+
+        ctx.body = {
+            success: true,
+            message: 'Login successful',
+            token
+        };
+    }
+};
@@ -0,0 +1,166 @@
+import type { Context } from 'koa';
+import DatabaseService from '../services/database';
+import dbConfig from '../config/database';
+import type { Category } from '../models';
+import { ObjectId } from 'mongodb';
+
+const db = DatabaseService.getInstance();
+
+export default {
+  // Get categories for a user
+  async getUserCategories(ctx: Context) {
+    const user = (ctx.state as any).user;
+    const userId = user.id;
+    
+    try {
+      const categoriesCollection = db.getCollection<Category>(dbConfig.collections.categories);
+      
+      const categories = await categoriesCollection.find({
+        userId: new ObjectId(userId)
+      }).toArray();
+      
+      ctx.body = {
+        success: true,
+        data: categories
+      };
+    } catch (error) {
+      ctx.status = 500;
+      ctx.body = {
+        success: false,
+        message: 'Error retrieving categories',
+        error: (error as Error).message
+      };
+    }
+  },
+  
+  // Add new category
+  async addCategory(ctx: Context) {
+    const user = (ctx.state as any).user;
+    const userId = user.id;
+    const { name, icon, color } = ctx.request.body as {
+      name: string;
+      icon?: string;
+      color?: string;
+    };
+    
+    if (!name) {
+      ctx.status = 400;
+      ctx.body = {
+        success: false,
+        message: 'Category name is required'
+      };
+      return;
+    }
+    
+    try {
+      const categoriesCollection = db.getCollection<Category>(dbConfig.collections.categories);
+      
+      // Check if category already exists
+      const existingCategory = await categoriesCollection.findOne({
+        userId: new ObjectId(userId),
+        name
+      });
+      
+      if (existingCategory) {
+        ctx.status = 409;
+        ctx.body = {
+          success: false,
+          message: 'Category already exists'
+        };
+        return;
+      }
+      
+      const now = new Date();
+      const newCategory: Category = {
+        userId: new ObjectId(userId),
+        name,
+        icon,
+        color,
+        createdAt: now,
+        updatedAt: now
+      };
+      
+      const result = await categoriesCollection.insertOne(newCategory);
+      
+      ctx.status = 201;
+      ctx.body = {
+        success: true,
+        message: 'Category added successfully',
+        categoryId: result.insertedId
+      };
+    } catch (error) {
+      ctx.status = 500;
+      ctx.body = {
+        success: false,
+        message: 'Error adding category',
+        error: (error as Error).message
+      };
+    }
+  },
+  
+  // Update category
+  async updateCategory(ctx: Context) {
+    const user = (ctx.state as any).user;
+    const userId = user.id;
+    const categoryId = ctx.params.id;
+    
+    const { name, icon, color } = ctx.request.body as {
+      name?: string;
+      icon?: string;
+      color?: string;
+    };
+    
+    if (!categoryId || !ObjectId.isValid(categoryId)) {
+      ctx.status = 400;
+      ctx.body = {
+        success: false,
+        message: 'Valid category ID is required'
+      };
+      return;
+    }
+    
+    try {
+      const categoriesCollection = db.getCollection<Category>(dbConfig.collections.categories);
+      
+      // Make sure category belongs to user
+      const category = await categoriesCollection.findOne({
+        _id: new ObjectId(categoryId),
+        userId: new ObjectId(userId)
+      });
+      
+      if (!category) {
+        ctx.status = 404;
+        ctx.body = {
+          success: false,
+          message: 'Category not found'
+        };
+        return;
+      }
+      
+      const updateData: Partial<Category> = {
+        updatedAt: new Date()
+      };
+      
+      if (name) updateData.name = name;
+      if (icon) updateData.icon = icon;
+      if (color) updateData.color = color;
+      
+      await categoriesCollection.updateOne(
+        { _id: new ObjectId(categoryId) },
+        { $set: updateData }
+      );
+      
+      ctx.body = {
+        success: true,
+        message: 'Category updated successfully'
+      };
+    } catch (error) {
+      ctx.status = 500;
+      ctx.body = {
+        success: false,
+        message: 'Error updating category',
+        error: (error as Error).message
+      };
+    }
+  }
+};
@@ -0,0 +1,110 @@
+import type { Context } from 'koa';
+import DatabaseService from '../services/database';
+import dbConfig from '../config/database';
+import type { Transaction } from '../models';
+import { ObjectId } from 'mongodb';
+
+const db = DatabaseService.getInstance();
+
+export default {
+  // Protected endpoint that requires authentication
+  async getProtectedData(ctx: Context) {
+    // The user property is added by koa-jwt middleware
+    const user = (ctx.state as any).user;
+    
+    ctx.body = {
+      success: true,
+      message: 'You have access to protected data',
+      data: {
+        secret: 'This is protected data',
+        timestamp: new Date().toISOString(),
+        user: user.username,
+        userId: user.id
+      }
+    };
+  },
+  
+  // Get user's transactions
+  async getUserTransactions(ctx: Context) {
+    const user = (ctx.state as any).user;
+    const userId = user.id;
+    
+    try {
+      const transactionsCollection = db.getCollection<Transaction>(dbConfig.collections.transactions);
+      
+      // Get the latest 10 transactions for the user
+      const transactions = await transactionsCollection.find({
+        userId: new ObjectId(userId)
+      })
+      .sort({ date: -1 })
+      .limit(10)
+      .toArray();
+      
+      ctx.body = {
+        success: true,
+        data: transactions
+      };
+    } catch (error) {
+      ctx.status = 500;
+      ctx.body = {
+        success: false,
+        message: 'Error retrieving transactions',
+        error: (error as Error).message
+      };
+    }
+  },
+  
+  // Add new transaction
+  async addTransaction(ctx: Context) {
+    const user = (ctx.state as any).user;
+    const userId = user.id;
+    const { amount, type, categoryId, description } = ctx.request.body as {
+      amount: number;
+      type: 'income' | 'expense';
+      categoryId: string;
+      description: string;
+    };
+    
+    // Validate input
+    if (!amount || !type || !categoryId) {
+      ctx.status = 400;
+      ctx.body = {
+        success: false,
+        message: 'Amount, type and category are required'
+      };
+      return;
+    }
+    
+    try {
+      const transactionsCollection = db.getCollection<Transaction>(dbConfig.collections.transactions);
+      
+      const now = new Date();
+      const newTransaction: Transaction = {
+        userId: new ObjectId(userId),
+        amount,
+        type,
+        categoryId: new ObjectId(categoryId),
+        description: description || '',
+        date: now,
+        createdAt: now,
+        updatedAt: now
+      };
+      
+      const result = await transactionsCollection.insertOne(newTransaction);
+      
+      ctx.status = 201;
+      ctx.body = {
+        success: true,
+        message: 'Transaction added successfully',
+        transactionId: result.insertedId
+      };
+    } catch (error) {
+      ctx.status = 500;
+      ctx.body = {
+        success: false,
+        message: 'Error adding transaction',
+        error: (error as Error).message
+      };
+    }
+  }
+};
@@ -0,0 +1,32 @@
+import type { Middleware } from 'koa';
+import jwt from 'koa-jwt';
+import jwtConfig from '../config/jwt';
+
+// JWT authentication middleware
+export const authenticate: Middleware = jwt({
+    secret: jwtConfig.secret
+}).unless({
+    // Paths that don't require authentication
+    path: [
+        '/api/auth/login',
+        '/api/auth/register',
+        '/api/auth/register-admin'
+    ]
+});
+
+// Error handling middleware for JWT authentication
+export const handleJwtError: Middleware = async (ctx, next) => {
+    try {
+        await next();
+    } catch (err: any) {
+        if (err.status === 401) {
+            ctx.status = 401;
+            ctx.body = {
+                success: false,
+                message: 'Unauthorized - Invalid or expired token'
+            };
+        } else {
+            throw err;
+        }
+    }
+};
@@ -0,0 +1,33 @@
+import { ObjectId } from 'mongodb';
+
+export interface User {
+  _id?: ObjectId;
+  username: string;
+  password: string;
+  email?: string;
+  role?: 'user' | 'admin';
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface Transaction {
+  _id?: ObjectId;
+  userId: ObjectId;
+  amount: number;
+  type: 'income' | 'expense';
+  categoryId: ObjectId;
+  description: string;
+  date: Date;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface Category {
+  _id?: ObjectId;
+  name: string;
+  userId: ObjectId;
+  icon?: string;
+  color?: string;
+  createdAt: Date;
+  updatedAt: Date;
+}
@@ -0,0 +1,25 @@
+import Router from 'koa-router';
+import authController from '../controllers/auth';
+import protectedController from '../controllers/protected';
+import categoriesController from '../controllers/categories';
+
+const router = new Router({ prefix: '/api' });
+
+// Auth routes
+router.post('/auth/register', authController.register);
+router.post('/auth/register-admin', authController.registerAdmin);
+router.post('/auth/login', authController.login);
+
+// Protected routes
+router.get('/protected', protectedController.getProtectedData);
+
+// Transaction routes
+router.get('/transactions', protectedController.getUserTransactions);
+router.post('/transactions', protectedController.addTransaction);
+
+// Category routes
+router.get('/categories', categoriesController.getUserCategories);
+router.post('/categories', categoriesController.addCategory);
+router.put('/categories/:id', categoriesController.updateCategory);
+
+export default router;
@@ -0,0 +1,46 @@
+import { Collection, Db, MongoClient, type Document } from 'mongodb';
+import dbConfig from '../config/database';
+
+class DatabaseService {
+    private client: MongoClient;
+    private db: Db | null = null;
+    private static instance: DatabaseService;
+
+    private constructor() {
+        this.client = new MongoClient(dbConfig.uri);
+    }
+
+    static getInstance(): DatabaseService {
+        if (!DatabaseService.instance) {
+            DatabaseService.instance = new DatabaseService();
+        }
+        return DatabaseService.instance;
+    }
+
+    async connect(): Promise<void> {
+        try {
+            await this.client.connect();
+            this.db = this.client.db(dbConfig.dbName);
+            console.log('Connected to MongoDB successfully');
+        } catch (error) {
+            console.error('Failed to connect to MongoDB', error);
+            throw error;
+        }
+    }
+
+    getCollection<T extends Document>(collectionName: string): Collection<T> {
+        if (!this.db) {
+            throw new Error('Database connection not established. Call connect() first.');
+        }
+        return this.db.collection<T>(collectionName);
+    }
+
+    async disconnect(): Promise<void> {
+        if (this.client) {
+            await this.client.close();
+            console.log('Disconnected from MongoDB');
+        }
+    }
+}
+
+export default DatabaseService;
@@ -0,0 +1,28 @@
+{
+  "compilerOptions": {
+    // Environment setup & latest features
+    "lib": ["ESNext"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedIndexedAccess": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}