-- 批量插入200个模拟手环数据
-- 从 ak_users 中选取尚未绑定 wristband 的用户
-- watch_id 从 10000 开始递增
-- device_name 格式为 "手环-10000"

WITH target_users AS (
    SELECT id
    FROM public.ak_users u
    WHERE NOT EXISTS (
        SELECT 1 
        FROM public.ak_devices d 
        WHERE d.user_id = u.id 
        AND d.device_type = 'wristband'
    )
    LIMIT 200
),
users_with_watch_id AS (
    SELECT 
        id AS user_id,
        (ROW_NUMBER() OVER (ORDER BY id)) + 9999 AS watch_id
    FROM target_users
)
INSERT INTO public.ak_devices (
    id,
    user_id,
    device_type,
    device_name,
    device_mac,
    bind_time,
    status,
    extra,
    watch_id
)
SELECT
    gen_random_uuid(), -- 生成随机UUID作为设备ID
    user_id,           -- 使用真实的用户ID
    'wristband',
    '手环-' || watch_id,
    'FAKE-MAC-' || watch_id,
    NOW(),
    'active',
    '{"note": "Generated for demo class", "source": "mock-seed"}'::jsonb,
    watch_id
FROM users_with_watch_id;