package main

import (
	"context"
	"time"

	"github.com/pingcap/test-infra/caselib/pkg/steps"
	"github.com/pingcap/test-infra/caselib/pkg/utils"
	"github.com/pingcap/test-infra/common/model/resource"
	sdkResource "github.com/pingcap/test-infra/sdk/resource"
	_ "github.com/pingcap/test-infra/sdk/resource/impl/k8s"
	"go.uber.org/zap"
)

func ImportPlacement() steps.Step {
	var (
		tidbRes       = &resource.ResourceHandle{}
		lightningRes  = &resource.ResourceHandle{}
		opts          = &steps.LightningImportOpts{}
		dropDatabases string
		adminCheck    string
		placementOn   = []steps.TiDBVariable{steps.TiDBVariable{Name: "tidb_enable_alter_placement", Value: "on"}}
		expectError   = true
	)

	return steps.
		NewBuilder().
		LoadEnv().
		LoadParamFromEnv(utils.ParamPrefix+"drop_databases", &dropDatabases).
		LoadResourceFromEnv(utils.ParamPrefix+"import_basic_opts", opts).
		LoadResourceFromEnv(utils.ResourcePrefix+"target", tidbRes).
		LoadResourceFromEnv(utils.ResourcePrefix+"lightning", lightningRes).
		LoadParamFromEnv(utils.ParamPrefix+"admin_check", &adminCheck).
		DropDatabasesIfExists(tidbRes, &dropDatabases).
		// delete the placement policy from target tidb
		ExecuteSQL(tidbRes, "", "drop PLACEMENT POLICY if exists placement_region;").
		// lighting import data with placement rules when placement policy not exist => expect fail
		ExpectError(&expectError, steps.NewLightningImport(opts, lightningRes, tidbRes)).
		// lighting import data with placement rules when tidb_enable_alter_placement = 1, and valid policy => expect Pass
		// This case (the dumpling output) requires target tikv with label: [server.labels]\nregion = "chengdu"
		// change tikv config to include specified region label
		UpdateTiDBClusterConfig(tidbRes, sdkResource.TiKV, "[server.labels]\nregion = \"chengdu\"", 10*time.Minute).
		// note: tidb_enable_alter_placement is deleted (always on) after 5.4.0
		ConfigGlobalVariable(&placementOn, tidbRes).
		ExecuteSQL(tidbRes, "", "CREATE PLACEMENT POLICY IF NOT EXISTS `placement_region` PRIMARY_REGION=\"chengdu\" REGIONS=\"chengdu\";").
		DropDatabasesIfExists(tidbRes, &dropDatabases).
		LightningImport(opts, lightningRes, tidbRes).
		CheckDatabasesCrc32(&opts.Crc32Checksum, &dropDatabases, tidbRes).
		AdminCheck(tidbRes, &adminCheck).
		Build()
}

func main() {
	_, logger := utils.GetCtxAndLogger()
	ctx := steps.New(context.Background())
	if err := ImportPlacement().Execute(ctx); err != nil {
		logger.Fatal("ImportPlacement failed", zap.Error(err))
	}
	logger.Info("ImportPlacement finished")
}