databasus/backend/internal/features/billing/paddle/di.go

package billing_paddle

import (
	"sync"

	"github.com/PaddleHQ/paddle-go-sdk"

	"databasus-backend/internal/config"
	"databasus-backend/internal/features/billing"
	billing_webhooks "databasus-backend/internal/features/billing/webhooks"
)

var (
	paddleBillingService    *PaddleBillingService
	paddleBillingController *PaddleBillingController
	initOnce                sync.Once
)

func GetPaddleBillingService() *PaddleBillingService {
	if !config.GetEnv().IsCloud {
		return nil
	}

	initOnce.Do(func() {
		if config.GetEnv().IsPaddleSandbox {
			paddleClient, err := paddle.NewSandbox(config.GetEnv().PaddleApiKey)
			if err != nil {
				return
			}

			paddleBillingService = &PaddleBillingService{
				paddleClient,
				paddle.NewWebhookVerifier(config.GetEnv().PaddleWebhookSecret),
				config.GetEnv().PaddlePriceID,
				billing_webhooks.WebhookRepository{},
				billing.GetBillingService(),
			}
		} else {
			paddleClient, err := paddle.New(config.GetEnv().PaddleApiKey)
			if err != nil {
				return
			}

			paddleBillingService = &PaddleBillingService{
				paddleClient,
				paddle.NewWebhookVerifier(config.GetEnv().PaddleWebhookSecret),
				config.GetEnv().PaddlePriceID,
				billing_webhooks.WebhookRepository{},
				billing.GetBillingService(),
			}
		}

		paddleBillingController = &PaddleBillingController{paddleBillingService}
	})

	return paddleBillingService
}

func GetPaddleBillingController() *PaddleBillingController {
	if !config.GetEnv().IsCloud {
		return nil
	}

	// Ensure service + controller are initialized
	GetPaddleBillingService()

	return paddleBillingController
}

func SetupDependencies() {
	billing.GetBillingService().SetBillingProvider(GetPaddleBillingService())
}