-- 001_initial_schema.sql
-- Создание базовых таблиц для AETERNA

-- Таблица пользователей
CREATE TABLE IF NOT EXISTS users (
    user_id SERIAL PRIMARY KEY,
    email VARCHAR(255) UNIQUE NOT NULL,
    password_hash VARCHAR(255) NOT NULL,
    full_name VARCHAR(100) NOT NULL,
    phone VARCHAR(20),
    city VARCHAR(100),
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    last_login TIMESTAMP,
    is_active BOOLEAN DEFAULT TRUE,
    is_admin BOOLEAN DEFAULT FALSE
);

-- Таблица категорий
CREATE TABLE IF NOT EXISTS categories (
    category_id SERIAL PRIMARY KEY,
    name VARCHAR(100) NOT NULL,
    slug VARCHAR(100) UNIQUE NOT NULL,
    parent_id INTEGER REFERENCES categories(category_id) ON DELETE SET NULL,
    description TEXT,
    sort_order INTEGER DEFAULT 0,
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Таблица подкатегорий
CREATE TABLE IF NOT EXISTS subcategories (
    subcategory_id SERIAL PRIMARY KEY,
    category_id INTEGER REFERENCES categories(category_id) ON DELETE CASCADE,
    name VARCHAR(100) NOT NULL,
    slug VARCHAR(100) UNIQUE NOT NULL,
    description TEXT,
    sort_order INTEGER DEFAULT 0,
    is_active BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Таблица товаров
CREATE TABLE IF NOT EXISTS products (
    product_id SERIAL PRIMARY KEY,
    category_id INTEGER REFERENCES categories(category_id) ON DELETE SET NULL,
    name VARCHAR(200) NOT NULL,
    slug VARCHAR(200) UNIQUE NOT NULL,
    description TEXT,
    price DECIMAL(10, 2) NOT NULL,
    old_price DECIMAL(10, 2),
    sku VARCHAR(50) UNIQUE,
    stock_quantity INTEGER DEFAULT 0,
    is_available BOOLEAN DEFAULT TRUE,
    is_featured BOOLEAN DEFAULT FALSE,
    rating DECIMAL(3, 2) DEFAULT 0,
    review_count INTEGER DEFAULT 0,
    image_url VARCHAR(500),
    color VARCHAR(50),
    material VARCHAR(100),
    card_size VARCHAR(20) DEFAULT 'small',
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

-- Индексы для быстрого поиска
CREATE INDEX IF NOT EXISTS idx_products_category ON products(category_id);
CREATE INDEX IF NOT EXISTS idx_products_available ON products(is_available);
CREATE INDEX IF NOT EXISTS idx_products_price ON products(price);
CREATE INDEX IF NOT EXISTS idx_categories_parent ON categories(parent_id);
CREATE INDEX IF NOT EXISTS idx_categories_active ON categories(is_active);