package opsaction

import (
	"context"
	"encoding/json"
	"fmt"

	ccent "github.com/tidbcloud/devops/entity/cloudconfig"
	opent "github.com/tidbcloud/devops/entity/operation"
	"github.com/tidbcloud/devops/pkg/service/operation/actions"
)

var (
	ActionUpdateDefaultTemplateBinding opent.ActionMetadata = opent.ActionMetadata{
		Name: "UpdateDefaultTemplateBinding",
		Type: opent.ActionTypeAuto,
	}
)

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

func NewUpdateDefaultTemplateBinding(comps *actions.Components) actions.AutoAction {
	return &updateDefaultTemplateBinding{comps: comps}
}

func (a *updateDefaultTemplateBinding) Metadata() opent.ActionMetadata {
	return ActionUpdateDefaultTemplateBinding
}

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

	return nil
}

func (a *updateDefaultTemplateBinding) 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.CloudConfigAPI.UpdateTemplateDefaultCaseBinding(ctx, req)
	if err != nil {
		return actions.FailedActionResult(err), nil
	}

	return actions.RunningActionResult("", nil), nil
}

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

func (a *updateDefaultTemplateBinding) getParam(instance *opent.Instance) (*ccent.TemplateDefaultCaseBinding, error) {
	data := instance.Params[opent.ParamCloudConfigUpdateDefaultTemplateBindingRequest]
	if data == "" {
		return nil, fmt.Errorf("missing required param")
	}

	req := &ccent.TemplateDefaultCaseBinding{}
	err := json.Unmarshal([]byte(data), req)
	if err != nil {
		return nil, fmt.Errorf("unmarshal param failed: %v", err)
	}

	return req, nil
}