package service

import (
	"context"
	"encoding/json"
	"sync"

	"github.com/gochat/gochat/internal/model"
	"github.com/gochat/gochat/internal/worker"
)

const TaskTypeConversationDeleteObject = "conversation:delete_object"

type conversationDeleteObjectJob struct {
	AccountID      uint `json:"account_id"`
	ConversationID uint `json:"conversation_id"`
}

var conversationDeleteRegistrations sync.Map

// RegisterConversationDeleteJobs wires Chatwoot's DeleteObjectJob path for
// conversation destroy actions. Without a worker, ConversationService.Delete
// keeps the synchronous fallback used by focused tests.
func RegisterConversationDeleteJobs(wp *worker.WorkerPool, svc *ConversationService) {
	if wp == nil || svc == nil {
		return
	}
	if _, loaded := conversationDeleteRegistrations.LoadOrStore(wp, struct{}{}); loaded {
		return
	}
	wp.Register(TaskTypeConversationDeleteObject, svc.performConversationDeleteObject)
}

func (s *ConversationService) performConversationDeleteObject(ctx context.Context, job *model.BackgroundJob) error {
	var payload conversationDeleteObjectJob
	if err := json.Unmarshal(job.Payload, &payload); err != nil {
		return err
	}
	return s.deleteNow(ctx, payload.AccountID, payload.ConversationID)
}