implementation("com.revenuecat.purchases:purchases:9.20.2")

implementation("com.revenuecat.purchases:purchases-ui:9.20.2")

/**
 * RevenueCat Purchases SDK를 초기화합니다.
 *
 * `appUserID`가 nil이면, Purchases SDK가 자동으로 익명 ID를 생성합니다.
 * 사용자 식별에 대해 자세히 알아보기: https://docs.revenuecat.com/docs/user-ids
 *
 * `purchasesAreCompletedBy`가 REVENUECAT로 설정되어 있으므로, Purchases가 자동으로 트랜잭션을 완료합니다.
 * 트랜잭션 완료에 대해 자세히 알아보기: https://www.revenuecat.com/docs/migrating-to-revenuecat/sdk-or-not/finishing-transactions
 */
val builder = PurchasesConfiguration.Builder(this, "REVENUECAT_API_KEY")
Purchases.configure(
  builder
    .purchasesAreCompletedBy(PurchasesAreCompletedBy.REVENUECAT)
    .appUserID(null)
    .diagnosticsEnabled(true)
    .build(),
)

val ENTITLEMENT_IDENTIFIER = ".." // RevenueCat 대시보드에서 특정 entitlement identifier를 가져오세요
val customerInfo = Purchases.sharedInstance.awaitCustomerInfo()
val isEntitled = customerInfo?.entitlements[ENTITLEMENT_IDENTIFIER]?.isActive == true

@Composable
fun ContentScreen(isEntitled: Boolean) {
    if (isEntitled) {
      // 사용자가 이 entitlement에 접근 권한이 있으면 배너를 표시할 필요가 없습니다.
    } else {
      // 여기에 배너 UI를 표시하거나 페이월을 표시합니다
      ..
    }
}

// RevenueCat 서버에서 상품 정보를 가져옵니다
val products = Purchases.sharedInstance.awaitGetProducts(
  productIds = listOf("paywall_tester.subs"),
)

// 인앱 결제를 진행합니다
val purchaseResult = Purchases.sharedInstance.awaitPurchase(
  purchaseParams = PurchaseParams.Builder(
    activity = context as Activity,
    storeProduct = products.first(),
  ).build()
)

internal class DetailsRepositoryImpl @Inject constructor(
  @Dispatcher(CatArticlesDispatchers.IO) private val ioDispatcher: CoroutineDispatcher,
) : DetailsRepository {

  override fun fetchOffering(): Flow<ApiResponse<Offering>> = flow {
    try {
      val offerings = Purchases.sharedInstance.awaitOfferings()
      offerings.current?.let { currentOffering ->
        val response = ApiResponse.of { currentOffering }
        emit(response)
      }
    } catch (e: PurchasesException) {
      ApiResponse.exception(e)
    }
  }.flowOn(ioDispatcher)
}

val offering by viewModel.offering.collectAsState()

PaywallDialog(
   PaywallDialogOptions.Builder()
       .setDismissRequest {  }
       .setOffering(offering)
       .setFontProvider(..)
       .setListener(object : PaywallListener {
           override fun onPurchaseStarted(rcPackage: Package) {
               super.onPurchaseStarted(rcPackage)
           }

           override fun onPurchaseCompleted(customerInfo: CustomerInfo, storeTransaction: StoreTransaction) {
               super.onPurchaseCompleted(customerInfo, storeTransaction)

               customer = customerInfo
           }

           override fun onPurchaseError(error: PurchasesError) {
               super.onPurchaseError(error)
           }

           override fun onPurchaseCancelled() {
               super.onPurchaseCancelled()
           }
       })
       .build()
)