SET lc_monetary TO 'ru_RU.UTF-8';

CREATE TABLE IF NOT EXISTS clients (
    client_id SERIAL PRIMARY KEY,
    surname VARCHAR(50) NOT NULL,
    forename VARCHAR(50) NOT NULL,
    patronymic VARCHAR(50),
    age SMALLINT,
    phone_number VARCHAR(15) NOT NULL,
    email VARCHAR(50) NOT NULL
);

CREATE TABLE IF NOT EXISTS auth (
    client_id INT PRIMARY KEY REFERENCES clients(client_id),
    password VARCHAR(50) NOT NULL
);

CREATE TABLE IF NOT EXISTS board_games (
    board_game_id SERIAL PRIMARY KEY,
    name VARCHAR(100) NOT NULL,
    genre VARCHAR(30),
    publisher VARCHAR(50),
    price MONEY NOT NULL
);

CREATE TABLE IF NOT EXISTS sections (
    section_id SERIAL PRIMARY KEY,
    name VARCHAR(20) NOT NULL
);

CREATE TABLE IF NOT EXISTS sections_board_games (
    section_id INT REFERENCES sections(section_id),
    board_game_id INT REFERENCES board_games(board_game_id)
);

CREATE TABLE IF NOT EXISTS bags (
    bag_id SERIAL PRIMARY KEY,
    client_id INT REFERENCES clients(client_id)
);

CREATE TABLE IF NOT EXISTS bags_board_games (
    bag_id INT REFERENCES bags(bag_id),
    board_game_id INT REFERENCES board_games(board_game_id),
    count INT NOT NULL
);

CREATE TABLE IF NOT EXISTS discounts (
    discount_id SERIAL PRIMARY KEY,
    board_game_id INT REFERENCES board_games(board_game_id),
    amount SMALLINT NOT NULL,
    valid_until TIMESTAMP NOT NULL
);

CREATE TABLE IF NOT EXISTS clients_discounts (
    discount INT REFERENCES discounts(discount_id),
    client_id INT REFERENCES clients(client_id)
);

CREATE TABLE IF NOT EXISTS wishlists (
    wishlist_id SERIAL PRIMARY KEY,
    client_id INT REFERENCES clients(client_id)
);

CREATE TABLE IF NOT EXISTS wishlists_games (
    wishlist_id INT REFERENCES wishlists(wishlist_id),
    board_game_id INT REFERENCES board_games(board_game_id)
);

CREATE TABLE IF NOT EXISTS orders (
    order_id SERIAL PRIMARY KEY,
    client_id INT REFERENCES clients(client_id),
    pick_up VARCHAR(50) NOT NULL,
    order_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    cost MONEY NOT NULL
);

CREATE TABLE IF NOT EXISTS orders_games (
    order_id INT REFERENCES orders(order_id),
    board_game_id INT REFERENCES board_games(board_game_id),
    discount_id INT REFERENCES discounts(discount_id),
    count INT NOT NULL
);