CREATE TABLE IF NOT EXISTS users (
    id INT AUTO_INCREMENT PRIMARY KEY,
    username VARCHAR(50) UNIQUE NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS trips (
    id VARCHAR(36) PRIMARY KEY,
    user_id INT NOT NULL,
    title VARCHAR(255) NOT NULL,
    destination VARCHAR(255) DEFAULT 'Cappadocia',
    start_date DATE NOT NULL,
    end_date DATE NOT NULL,
    preferences JSON,
    itinerary JSON,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS places_cache (
    place_name_normalized VARCHAR(255) PRIMARY KEY,
    place_id VARCHAR(255),
    name VARCHAR(255),
    formatted_address TEXT,
    lat FLOAT,
    lng FLOAT,
    rating FLOAT,
    photo_reference TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS place_details_cache (
    place_id VARCHAR(255) PRIMARY KEY,
    details JSON NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS directions_cache (
    cache_key VARCHAR(500) PRIMARY KEY,
    response JSON NOT NULL,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);