// Copyright 2021 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 executor_test

import (
	"fmt"
	"os"
	"testing"

	"github.com/pingcap/tidb/config"
	"github.com/pingcap/tidb/meta/autoid"
	"github.com/pingcap/tidb/testkit"
	"github.com/pingcap/tidb/testkit/testdata"
	"github.com/pingcap/tidb/testkit/testmain"
	"github.com/pingcap/tidb/util/testbridge"
	"github.com/tikv/client-go/v2/tikv"
	"go.uber.org/goleak"
)

var testDataMap = make(testdata.BookKeeper)
var prepareMergeSuiteData testdata.TestData
var aggMergeSuiteData testdata.TestData

func TestMain(m *testing.M) {
	testbridge.WorkaroundGoCheckFlags()

	testDataMap.LoadTestSuiteData("testdata", "prepare_suite")
	testDataMap.LoadTestSuiteData("testdata", "agg_suite")
	prepareMergeSuiteData = testDataMap["prepare_suite"]
	aggMergeSuiteData = testDataMap["agg_suite"]

	autoid.SetStep(5000)
	config.UpdateGlobal(func(conf *config.Config) {
		conf.Log.SlowThreshold = 30000 // 30s
		conf.TiKVClient.AsyncCommit.SafeWindow = 0
		conf.TiKVClient.AsyncCommit.AllowedClockDrift = 0
		conf.Experimental.AllowsExpressionIndex = true
	})
	tikv.EnableFailpoints()
	tmpDir := config.GetGlobalConfig().TempStoragePath
	_ = os.RemoveAll(tmpDir) // clean the uncleared temp file during the last run.
	_ = os.MkdirAll(tmpDir, 0755)

	opts := []goleak.Option{
		goleak.IgnoreTopFunction("go.etcd.io/etcd/pkg/logutil.(*MergeLogger).outputLoop"),
		goleak.IgnoreTopFunction("go.opencensus.io/stats/view.(*worker).start"),
		goleak.IgnoreTopFunction("gopkg.in/natefinch/lumberjack%2ev2.(*Logger).millRun"),
		goleak.IgnoreTopFunction("github.com/pingcap/tidb/table/tables.mockRemoteService"),
	}
	callback := func(i int) int {
		testDataMap.GenerateOutputIfNeeded()
		return i
	}

	goleak.VerifyTestMain(testmain.WrapTestingM(m, callback), opts...)
}

func fillData(tk *testkit.TestKit, table string) {
	tk.MustExec("use test")
	tk.MustExec(fmt.Sprintf("create table %s(id int not null default 1, name varchar(255), PRIMARY KEY(id));", table))

	// insert data
	tk.MustExec(fmt.Sprintf("insert INTO %s VALUES (1, \"hello\");", table))
	tk.MustExec(fmt.Sprintf("insert into %s values (2, \"hello\");", table))
}