-- Bootstrap tables required by the built-in chat and Telegram integrations.
CREATE TABLE IF NOT EXISTS faqs (
  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  keywords VARCHAR(255) NOT NULL,
  answer TEXT NOT NULL,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS messages (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  user_message TEXT NOT NULL,
  ai_response MEDIUMTEXT NULL,
  created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
  INDEX idx_messages_created_at (created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS settings (
  id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
  setting_key VARCHAR(100) NOT NULL,
  setting_value TEXT NULL,
  updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  UNIQUE KEY uniq_settings_key (setting_key)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;