package user

import (
	"context"
	"errors"
	"testing"

	"perms-system-server/internal/response"
	"perms-system-server/internal/testutil/ctxhelper"
	"perms-system-server/internal/testutil/mocks"
	"perms-system-server/internal/types"

	"github.com/go-sql-driver/mysql"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"github.com/zeromicro/go-zero/core/stores/sqlx"
	"go.uber.org/mock/gomock"
)

// TC-0144: 唯一索引冲突消息（Insert层1062错误）——H-R17-1 后 CreateUser 把 Insert
// 收进 SysUserModel.TransactCtx 闭包，mock 路径必须同步切到 TransactCtx + InsertWithTx，
// 否则 gomock 在 "Unexpected call to Insert" 上就把契约保真性覆盖掉。
func TestCreateUser_Mock_InsertDuplicate1062(t *testing.T) {
	ctrl := gomock.NewController(t)
	defer ctrl.Finish()

	mockUser := mocks.NewMockSysUserModel(ctrl)
	mockUser.EXPECT().TransactCtx(gomock.Any(), gomock.Any()).DoAndReturn(
		func(ctx context.Context, fn func(context.Context, sqlx.Session) error) error {
			return fn(ctx, nil)
		})
	mockUser.EXPECT().InsertWithTx(gomock.Any(), gomock.Any(), gomock.Any()).
		Return(nil, &mysql.MySQLError{Number: 1062, Message: "Duplicate entry 'dupuser' for key 'username'"})

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

	logic := NewCreateUserLogic(ctxhelper.SuperAdminCtx(), svcCtx)
	_, err := logic.CreateUser(&types.CreateUserReq{
		Username: "dupuser",
		Password: "Pass123456",
	})

	require.Error(t, err)
	var codeErr *response.CodeError
	require.True(t, errors.As(err, &codeErr))
	assert.Equal(t, 409, codeErr.Code())
	assert.Equal(t, "用户名已存在", codeErr.Error())
}