package service

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

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

const TaskTypeCsatTemplateCreate = "csat:template_create"

type csatTemplateCreateJob struct {
	TemplateID uint                      `json:"template_id"`
	Request    CreateCsatTemplateRequest `json:"request"`
}

var csatTemplateRegistrations sync.Map

// RegisterCsatTemplateJobs wires Chatwoot WhatsApp/Twilio CSAT template
// creation into the durable worker path.
func RegisterCsatTemplateJobs(wp *worker.WorkerPool, svc *CsatTemplateService) {
	if wp == nil || svc == nil {
		return
	}
	if _, loaded := csatTemplateRegistrations.LoadOrStore(wp, struct{}{}); loaded {
		return
	}
	wp.Register(TaskTypeCsatTemplateCreate, svc.performTemplateCreateJob)
}

func (s *CsatTemplateService) performTemplateCreateJob(ctx context.Context, job *model.BackgroundJob) error {
	var payload csatTemplateCreateJob
	if err := json.Unmarshal(job.Payload, &payload); err != nil {
		return fmt.Errorf("unmarshal csat template job: %w", err)
	}
	if payload.TemplateID == 0 {
		return fmt.Errorf("invalid csat template job payload: %#v", payload)
	}
	return s.performTemplateCreate(ctx, payload.TemplateID, payload.Request)
}