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const sqlite3 = require('sqlite3').verbose(); |
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const path = require('path'); |
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|
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// Database file location |
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const DB_PATH = process.env.NODE_ENV === 'production' |
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? '/data/localtoast.db' // Railway persistent volume |
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: path.join(__dirname, 'db', 'localtoast.db'); |
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|
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// Create database connection |
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const db = new sqlite3.Database(DB_PATH, (err) => { |
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if (err) { |
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console.error('Error opening database:', err); |
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} else { |
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console.log('Connected to SQLite database at:', DB_PATH); |
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} |
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}); |
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|
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// Enable foreign keys |
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db.run('PRAGMA foreign_keys = ON'); |
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|
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// Initialize database schema |
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function initializeDatabase() { |
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return new Promise((resolve, reject) => { |
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db.serialize(() => { |
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// Create restaurants table |
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db.run(` |
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CREATE TABLE IF NOT EXISTS restaurants ( |
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id INTEGER PRIMARY KEY AUTOINCREMENT, |
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place_id TEXT UNIQUE NOT NULL, |
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name TEXT NOT NULL, |
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address TEXT NOT NULL, |
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latitude REAL NOT NULL, |
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longitude REAL NOT NULL, |
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP |
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) |
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`, (err) => { |
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if (err) console.error('Error creating restaurants table:', err); |
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}); |
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|
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// Create ratings table |
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db.run(` |
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CREATE TABLE IF NOT EXISTS ratings ( |
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id INTEGER PRIMARY KEY AUTOINCREMENT, |
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restaurant_id INTEGER NOT NULL, |
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rating INTEGER NOT NULL CHECK (rating >= 1 AND rating <= 5), |
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review TEXT, |
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP, |
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FOREIGN KEY (restaurant_id) REFERENCES restaurants (id) |
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) |
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`, (err) => { |
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if (err) console.error('Error creating ratings table:', err); |
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}); |
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|
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// Create indexes for better performance |
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db.run(` |
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CREATE INDEX IF NOT EXISTS idx_restaurants_location |
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ON restaurants(latitude, longitude) |
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`); |
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|
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db.run(` |
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CREATE INDEX IF NOT EXISTS idx_ratings_restaurant |
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ON ratings(restaurant_id) |
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`, (err) => { |
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if (err) { |
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reject(err); |
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} else { |
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console.log('Database initialized successfully'); |
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resolve(); |
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} |
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}); |
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}); |
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}); |
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} |
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|
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// Database helper functions |
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const dbHelpers = { |
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// Get all restaurants with ratings |
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getAllRestaurants: () => { |
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return new Promise((resolve, reject) => { |
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const query = ` |
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SELECT |
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r.*, |
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AVG(rt.rating) as average_rating, |
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COUNT(rt.id) as total_ratings |
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FROM restaurants r |
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LEFT JOIN ratings rt ON r.id = rt.restaurant_id |
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GROUP BY r.id |
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`; |
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|
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db.all(query, (err, rows) => { |
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if (err) reject(err); |
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else resolve(rows); |
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}); |
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}); |
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}, |
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|
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// Get restaurants within radius |
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getNearbyRestaurants: (lat, lng, radiusKm = 5) => { |
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return new Promise((resolve, reject) => { |
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// SQLite doesn't have built-in geospatial functions, so we'll use a bounding box |
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// This is an approximation but works well for small distances |
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const latDiff = radiusKm / 111; // 1 degree latitude ≈ 111 km |
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const lngDiff = radiusKm / (111 * Math.cos(lat * Math.PI / 180)); |
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|
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const query = ` |
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SELECT |
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r.*, |
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AVG(rt.rating) as average_rating, |
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COUNT(rt.id) as total_ratings |
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FROM restaurants r |
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LEFT JOIN ratings rt ON r.id = rt.restaurant_id |
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WHERE |
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r.latitude BETWEEN ? AND ? |
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AND r.longitude BETWEEN ? AND ? |
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GROUP BY r.id |
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`; |
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|
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db.all(query, [ |
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lat - latDiff, lat + latDiff, |
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lng - lngDiff, lng + lngDiff |
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], (err, rows) => { |
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if (err) reject(err); |
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else resolve(rows); |
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}); |
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}); |
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}, |
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|
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// Get restaurant by place_id |
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getRestaurantByPlaceId: (placeId) => { |
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return new Promise((resolve, reject) => { |
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db.get( |
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'SELECT * FROM restaurants WHERE place_id = ?', |
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[placeId], |
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(err, row) => { |
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if (err) reject(err); |
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else resolve(row); |
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} |
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); |
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}); |
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}, |
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|
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// Add new restaurant |
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addRestaurant: (restaurant) => { |
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return new Promise((resolve, reject) => { |
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const { place_id, name, address, latitude, longitude } = restaurant; |
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|
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db.run( |
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`INSERT INTO restaurants (place_id, name, address, latitude, longitude) |
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VALUES (?, ?, ?, ?, ?)`, |
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[place_id, name, address, latitude, longitude], |
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function(err) { |
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if (err) { |
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reject(err); |
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} else { |
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// Get the inserted restaurant |
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db.get( |
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'SELECT * FROM restaurants WHERE id = ?', |
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[this.lastID], |
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(err, row) => { |
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if (err) reject(err); |
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else resolve(row); |
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} |
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); |
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} |
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} |
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); |
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}); |
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}, |
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|
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// Add rating |
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addRating: (restaurantId, rating, review) => { |
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return new Promise((resolve, reject) => { |
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db.run( |
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`INSERT INTO ratings (restaurant_id, rating, review) |
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VALUES (?, ?, ?)`, |
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[restaurantId, rating, review], |
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function(err) { |
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if (err) { |
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reject(err); |
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} else { |
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resolve({ |
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id: this.lastID, |
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message: 'Toast rating added successfully! 🍞' |
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}); |
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} |
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} |
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); |
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}); |
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}, |
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|
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// Get ratings for a restaurant |
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getRestaurantRatings: (restaurantId) => { |
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return new Promise((resolve, reject) => { |
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db.all( |
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`SELECT * FROM ratings |
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WHERE restaurant_id = ? |
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ORDER BY created_at DESC`, |
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[restaurantId], |
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(err, rows) => { |
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if (err) reject(err); |
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else resolve(rows); |
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} |
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); |
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}); |
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}, |
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|
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// Migrate from JSON files (one-time migration) |
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migrateFromJSON: async () => { |
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const fs = require('fs').promises; |
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const oldRestaurantsPath = path.join(__dirname, 'db', 'restaurants.json'); |
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const oldRatingsPath = path.join(__dirname, 'db', 'ratings.json'); |
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|
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try { |
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// Check if JSON files exist |
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const restaurantsData = await fs.readFile(oldRestaurantsPath, 'utf8').catch(() => '[]'); |
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const ratingsData = await fs.readFile(oldRatingsPath, 'utf8').catch(() => '[]'); |
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|
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const restaurants = JSON.parse(restaurantsData); |
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const ratings = JSON.parse(ratingsData); |
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|
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console.log(`Migrating ${restaurants.length} restaurants and ${ratings.length} ratings...`); |
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|
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// Migrate restaurants |
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for (const restaurant of restaurants) { |
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try { |
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await dbHelpers.addRestaurant(restaurant); |
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console.log(`Migrated restaurant: ${restaurant.name}`); |
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} catch (err) { |
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if (err.message.includes('UNIQUE constraint failed')) { |
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console.log(`Restaurant already exists: ${restaurant.name}`); |
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} else { |
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console.error(`Failed to migrate restaurant ${restaurant.name}:`, err); |
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} |
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} |
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} |
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|
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// Migrate ratings |
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for (const rating of ratings) { |
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try { |
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await dbHelpers.addRating(rating.restaurant_id, rating.rating, rating.review); |
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console.log(`Migrated rating for restaurant ${rating.restaurant_id}`); |
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} catch (err) { |
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console.error(`Failed to migrate rating:`, err); |
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} |
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} |
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|
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console.log('Migration completed!'); |
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|
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// Rename old files to .backup |
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await fs.rename(oldRestaurantsPath, oldRestaurantsPath + '.backup').catch(() => {}); |
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await fs.rename(oldRatingsPath, oldRatingsPath + '.backup').catch(() => {}); |
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|
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} catch (error) { |
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console.error('Migration error:', error); |
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} |
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} |
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}; |
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|
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module.exports = { |
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db, |
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initializeDatabase, |
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...dbHelpers |
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}; |