-- =============================================
-- 租户-项目两级架构 - 默认数据迁移
-- 为每个现有租户创建默认项目，为所有用户关联默认项目
-- =============================================

-- Step 1: 为每个现有租户创建默认项目
INSERT INTO system_project (tenant_id, name, code, status, remark, creator, updater, deleted)
SELECT id, name, 'DEFAULT', 0, '系统自动生成默认项目', 'system', 'system', 0
FROM system_tenant WHERE deleted = 0;

-- Step 2: 为所有用户关联默认项目
INSERT INTO system_user_project (user_id, project_id, tenant_id, creator, updater, deleted)
SELECT u.id, p.id, u.tenant_id, 'system', 'system', 0
FROM system_users u
JOIN system_project p ON p.tenant_id = u.tenant_id AND p.code = 'DEFAULT' AND p.deleted = 0
WHERE u.deleted = 0;

-- 验证
SELECT '默认项目数量' AS metric, COUNT(*) AS value FROM system_project WHERE code = 'DEFAULT' AND deleted = 0
UNION ALL
SELECT '用户-项目关联数量', COUNT(*) FROM system_user_project WHERE deleted = 0;