CREATE DATABASE IF NOT EXISTS auth_db
  CHARACTER SET utf8mb4
  COLLATE utf8mb4_unicode_ci;

USE auth_db;

CREATE TABLE IF NOT EXISTS users (
  id INT UNSIGNED NOT NULL AUTO_INCREMENT,
  login VARCHAR(64) NOT NULL UNIQUE,
  password_hash VARCHAR(255) NOT NULL,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id)
) ENGINE=InnoDB;

CREATE TABLE IF NOT EXISTS user_access (
  id INT UNSIGNED NOT NULL AUTO_INCREMENT,
  user_id INT UNSIGNED NOT NULL,
  site_key VARCHAR(255) NOT NULL,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  UNIQUE KEY unique_access (user_id, site_key),
  CONSTRAINT fk_user_access_user
    FOREIGN KEY (user_id) REFERENCES users(id)
    ON DELETE CASCADE
) ENGINE=InnoDB;

-- Пример:
-- INSERT INTO users (login, password_hash)
-- VALUES ('demo', '$2a$10$YOUR_BCRYPT_HASH_HERE');
--
-- INSERT INTO user_access (user_id, site_key)
-- VALUES (1, 'example.com');