-- Physical t_devices registry + slim t_user_devices + login log app_id.

CREATE TABLE IF NOT EXISTS t_devices (
    device_id         BIGINT UNSIGNED NOT NULL COMMENT 'JWT did；多 App 同机共用',
    fingerprint_hash  CHAR(64) NOT NULL COMMENT '物理指纹 SHA256 hex，不含 app_id',
    device_type       TINYINT UNSIGNED NOT NULL COMMENT 'device_type 枚举 1=ios 2=android …',
    device_name       VARCHAR(64) NOT NULL DEFAULT '' COMMENT '最近 login 上报设备名',
    idfv              VARCHAR(36) NOT NULL DEFAULT '' COMMENT 'iOS IDFV',
    android_id        VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'Android ID',
    last_client_ip    VARCHAR(30) NOT NULL DEFAULT '' COMMENT '最近 RealIP',
    created_at        DATETIME(3) NOT NULL COMMENT '首次注册',
    updated_at        DATETIME(3) NOT NULL COMMENT '最近 touch',
    PRIMARY KEY (device_id),
    UNIQUE KEY uk_fingerprint (fingerprint_hash)
) COMMENT='物理设备；与用户、App 无关';

ALTER TABLE t_user_login_logs
    ADD COLUMN app_id TINYINT UNSIGNED NOT NULL DEFAULT 0
        COMMENT '当次登录 app_id' AFTER device_id;

ALTER TABLE t_user_devices
    ADD COLUMN last_active_at DATETIME(3) NULL COMMENT '该用户在此设备最近活跃' AFTER last_login_at;

ALTER TABLE t_user_devices DROP COLUMN platform;
ALTER TABLE t_user_devices DROP COLUMN device_name;
ALTER TABLE t_user_devices DROP COLUMN app_version;
ALTER TABLE t_user_devices DROP COLUMN language;
ALTER TABLE t_user_devices DROP COLUMN last_ip;