// Copyright 2024 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package scheduler

import (
	"context"

	"github.com/pingcap/tidb/pkg/disttask/framework/proto"
	mockScheduler "github.com/pingcap/tidb/pkg/disttask/framework/scheduler/mock"
	"github.com/pingcap/tidb/pkg/disttask/framework/storage"
	"go.uber.org/mock/gomock"
)

// GetTestSchedulerExt return scheduler.Extension for testing.
func GetTestSchedulerExt(ctrl *gomock.Controller) Extension {
	mockScheduler := mockScheduler.NewMockExtension(ctrl)
	mockScheduler.EXPECT().OnTick(gomock.Any(), gomock.Any()).Return().AnyTimes()
	mockScheduler.EXPECT().GetEligibleInstances(gomock.Any(), gomock.Any()).DoAndReturn(
		func(_ context.Context, _ *proto.Task) ([]string, error) {
			return nil, nil
		},
	).AnyTimes()
	mockScheduler.EXPECT().IsRetryableErr(gomock.Any()).Return(true).AnyTimes()
	mockScheduler.EXPECT().GetNextStep(gomock.Any()).DoAndReturn(
		func(_ *proto.Task) proto.Step {
			return proto.StepDone
		},
	).AnyTimes()
	mockScheduler.EXPECT().OnNextSubtasksBatch(gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any(), gomock.Any()).DoAndReturn(
		func(_ context.Context, _ storage.TaskHandle, _ *proto.Task, _ []string, _ proto.Step) (metas [][]byte, err error) {
			return nil, nil
		},
	).AnyTimes()

	mockScheduler.EXPECT().OnDone(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil).AnyTimes()
	return mockScheduler
}