package dept

import (
	"testing"

	deptModel "perms-system-server/internal/model/dept"
	"perms-system-server/internal/testutil/ctxhelper"
	"perms-system-server/internal/testutil/mocks"
	"perms-system-server/internal/types"

	"github.com/stretchr/testify/assert"
	"go.uber.org/mock/gomock"
)

// TC-0105: UpdateDept 只清理自身部门用户缓存，不再级联到子部门 (audit  修复验证)
func TestUpdateDept_Mock_CascadeCacheClean(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	parentDeptId := int64(10)

	mockDept := mocks.NewMockSysDeptModel(ctrl)
	mockDept.EXPECT().FindOne(gomock.Any(), parentDeptId).
		Return(&deptModel.SysDept{
			Id:         parentDeptId,
			Name:       "Parent",
			Path:       "/10/",
			DeptType:   "NORMAL",
			Status:     1,
			UpdateTime: 1000,
		}, nil)
	// 修复后：使用乐观锁 UpdateWithOptLock，且不再调用 FindByPathPrefix
	mockDept.EXPECT().UpdateWithOptLock(gomock.Any(), gomock.Any(), int64(1000)).Return(nil)

	mockUser := mocks.NewMockSysUserModel(ctrl)
	// 修复后：仅查询目标部门直属用户，不再级联查询子部门用户
	mockUser.EXPECT().FindIdsByDeptId(gomock.Any(), parentDeptId).
		Return([]int64{100, 101}, nil)
	// 下面两个调用不应发生（gomock 默认严格，未声明调用即失败）

	svcCtx := mocks.NewMockServiceContext(mocks.MockModels{
		Dept: mockDept,
		User: mockUser,
	})

	ctx := ctxhelper.SuperAdminCtx()
	logic := NewUpdateDeptLogic(ctx, svcCtx)
	err := logic.UpdateDept(&types.UpdateDeptReq{
		Id:       parentDeptId,
		Name:     "Parent Updated",
		DeptType: "DEV",
	})

	assert.NoError(t, err)
}

// TC-0714: UpdateDept 当 deptType 与 status 都未变化时，不触发任何缓存清理 (audit )
func TestUpdateDept_Mock_NoCacheCleanWhenUnchanged(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	deptId := int64(11)

	mockDept := mocks.NewMockSysDeptModel(ctrl)
	mockDept.EXPECT().FindOne(gomock.Any(), deptId).
		Return(&deptModel.SysDept{
			Id:         deptId,
			Name:       "Old",
			Path:       "/11/",
			DeptType:   "NORMAL",
			Status:     1,
			UpdateTime: 2000,
		}, nil)
	mockDept.EXPECT().UpdateWithOptLock(gomock.Any(), gomock.Any(), int64(2000)).Return(nil)

	mockUser := mocks.NewMockSysUserModel(ctrl)
	// 不应调用 FindIdsByDeptId — 未设置期望，任何调用都会 FAIL

	svcCtx := mocks.NewMockServiceContext(mocks.MockModels{
		Dept: mockDept,
		User: mockUser,
	})

	ctx := ctxhelper.SuperAdminCtx()
	logic := NewUpdateDeptLogic(ctx, svcCtx)
	err := logic.UpdateDept(&types.UpdateDeptReq{
		Id:       deptId,
		Name:     "New Name",
		DeptType: "NORMAL", // 与原值一致
		Status:   1,        // 与原值一致
	})

	assert.NoError(t, err)
}

// TC-0715: UpdateDept 乐观锁冲突时返回 409 ErrConflict (audit  乐观锁补充)
func TestUpdateDept_Mock_OptLockConflict(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	deptId := int64(12)

	mockDept := mocks.NewMockSysDeptModel(ctrl)
	mockDept.EXPECT().FindOne(gomock.Any(), deptId).
		Return(&deptModel.SysDept{
			Id:         deptId,
			Name:       "Old",
			Path:       "/12/",
			DeptType:   "NORMAL",
			Status:     1,
			UpdateTime: 3000,
		}, nil)
	// 模拟并发：另一事务已更新该行，updateTime 不再匹配
	mockDept.EXPECT().UpdateWithOptLock(gomock.Any(), gomock.Any(), int64(3000)).
		Return(deptModel.ErrUpdateConflict)

	svcCtx := mocks.NewMockServiceContext(mocks.MockModels{
		Dept: mockDept,
	})

	ctx := ctxhelper.SuperAdminCtx()
	logic := NewUpdateDeptLogic(ctx, svcCtx)
	err := logic.UpdateDept(&types.UpdateDeptReq{
		Id:   deptId,
		Name: "new",
	})

	assert.Error(t, err)
	// 期望 409 Conflict
	assert.Contains(t, err.Error(), "数据已被其他操作修改")
}