package tidbgroup

import (
	"context"
	"strconv"

	"github.com/tidbcloud/tiinf/sdk/auditlog"
	"google.golang.org/protobuf/types/known/emptypb"

	globaldedicatedv1 "github.com/tidbcloud/tidb-management-service/api/spec/global/dedicated/v1"
	openapidedicatedv1beta1 "github.com/tidbcloud/tidb-management-service/api/spec/tidb_cloud_open_api/dedicated/v1beta1"
	"github.com/tidbcloud/tidb-management-service/tidb-mgmt-service/domain/adapter/eventbus"
	"github.com/tidbcloud/tidb-management-service/utilities/bizerr"
	"github.com/tidbcloud/tidb-management-service/utilities/grpc/metadata"
)

func (s serverImpl) DeleteTidbNodeGroup(
	ctx context.Context,
	req *openapidedicatedv1beta1.DeleteTidbNodeGroupRequest,
) (*emptypb.Empty, error) {
	ctx, span := tracer.Start(ctx, "DeleteTidbNodeGroup")
	defer span.End()

	var (
		err     error
		reqMeta *metadata.RequestMeta
	)

	detailsFunc := func() auditlog.Details {
		details := eventbus.NewAuditLogDetails(eventbus.TierTypeDedicated)
		details[auditlog.KeyTidbNodeGroupId] = req.GetTidbNodeGroupId()
		return details
	}
	defer func() {
		s.auditLogSender.SubmitAuditLog(ctx, auditlog.EventDeleteTidbNodeGroup, reqMeta, detailsFunc, err)
	}()

	// Extract request meta.
	reqMeta, err = metadata.ExtractRequestMetaWithCheckPermission(ctx)
	if err != nil {
		return nil, bizerr.WrapErrorWithCode(err, bizerr.ErrCodeParams, "failed to extract request metadata")
	}

	// Validate request.
	var groupId uint64
	groupId, err = strconv.ParseUint(req.GetTidbNodeGroupId(), 10, 64)
	if err != nil {
		return nil, bizerr.WrapErrorWithCode(err, bizerr.ErrCodeParams, "invalid tidb node group id")
	}

	clusterId, err := strconv.ParseUint(req.GetClusterId(), 10, 64)
	if err != nil {
		return nil, bizerr.WrapErrorWithCode(err, bizerr.ErrCodeParams, "invalid cluster id")
	}

	// delete tidb node group
	_, err = s.dedicatedCli.DeleteTidbNodeGroup(ctx, &globaldedicatedv1.DeleteTidbNodeGroupRequest{
		Id:           groupId,
		ClusterId:    clusterId,
		ValidateOnly: req.GetValidateOnly(),
	})

	if err != nil {
		return nil, err
	}

	return &emptypb.Empty{}, nil
}