package clusteraction

import (
	"context"
	"fmt"

	opent "github.com/tidbcloud/devops/entity/operation"
	"github.com/tidbcloud/devops/pkg/service/operation/actions"
	mgmtv1 "github.com/tidbcloud/tidb-management-service/api/spec/tidb_mgmt_service/v1"
	"google.golang.org/protobuf/encoding/protojson"
)

var (
	ActionDeleteHeterogeneousDeploy = opent.ActionMetadata{
		Name: "DeleteHeterogeneousDeploy",
		Type: opent.ActionTypeAuto,
	}
)

type deleteHeterogeneousDeploy struct {
	actions.BaseAction
	comps *actions.Components
}

func NewDeleteHeterogeneousDeploy(comps *actions.Components) actions.AutoAction {
	return &deleteHeterogeneousDeploy{comps: comps}
}

func (a *deleteHeterogeneousDeploy) Metadata() opent.ActionMetadata {
	return ActionDeleteHeterogeneousDeploy
}

func (a *deleteHeterogeneousDeploy) PreCheck(ctx context.Context, instance *opent.Instance) error {
	_, err := a.getParam(instance)
	return err
}

func (a *deleteHeterogeneousDeploy) Start(ctx context.Context, instance *opent.Instance) (*actions.ActionResult, error) {
	req, err := a.getParam(instance)
	if err != nil {
		return actions.FailedActionResult(err), nil
	}

	_, err = a.comps.CoreSvc.Mgmt.Cluster.DeleteGKEHeterogeneousDeploy(ctx, req)
	if err != nil {
		return actions.FailedActionResult(err), nil
	}

	return actions.SucceededActionResult(nil), nil
}

func (a *deleteHeterogeneousDeploy) Result(ctx context.Context, instance *opent.Instance) (*actions.ActionResult, error) {
	return actions.SucceededActionResult(nil), nil
}

func (a *deleteHeterogeneousDeploy) OnCancel(ctx context.Context, instance *opent.Instance) (bool, error) {
	return false, nil
}

func (a *deleteHeterogeneousDeploy) getParam(instance *opent.Instance) (*mgmtv1.DeleteGKEHeterogeneousDeployRequest, error) {
	_, err := instance.GetUintParam(opent.ParamClusterID)
	if err != nil {
		return nil, err
	}

	data := instance.Params[opent.ParamDeleteHeterogeneousDeployRequest]
	if data == "" {
		return nil, fmt.Errorf("missing required param")
	}

	req := &mgmtv1.DeleteGKEHeterogeneousDeployRequest{}
	err = protojson.Unmarshal([]byte(data), req)
	if err != nil {
		return nil, fmt.Errorf("unmarshal param failed: %w", err)
	}

	return req, nil
}