-- =========================================================================
-- MIGRATION: Sesi Aktif & Force Logout (Fasa Kesinambungan — Set 2)
-- Jalankan di phpMyAdmin > tab SQL, pada database SPMS sedia ada anda.
-- =========================================================================

CREATE TABLE IF NOT EXISTS active_sessions (
    session_id      VARCHAR(128) PRIMARY KEY,
    user_id         CHAR(36) NOT NULL,
    ip_address      VARCHAR(45) NULL,
    user_agent      VARCHAR(255) NULL,
    last_activity   DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    created_at      DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    FOREIGN KEY (user_id) REFERENCES app_users(user_id) ON DELETE CASCADE,
    INDEX idx_user (user_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;