SET NAMES utf8mb4;

CREATE TABLE IF NOT EXISTS admin_sessions (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  admin_user_id BIGINT UNSIGNED NOT NULL,
  refresh_token_hash BINARY(32) NOT NULL,
  user_agent_hash BINARY(32) NOT NULL,
  ip VARCHAR(45) NOT NULL DEFAULT '',
  expires_at DATETIME(3) NOT NULL,
  last_active_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  revoked_at DATETIME(3) NULL,
  created_at DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
  PRIMARY KEY (id),
  UNIQUE KEY uk_admin_sessions_refresh (refresh_token_hash),
  KEY idx_admin_sessions_user (admin_user_id, revoked_at, expires_at),
  CONSTRAINT fk_admin_sessions_user FOREIGN KEY (admin_user_id) REFERENCES admin_users(id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;