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93 changes: 93 additions & 0 deletions
93
.../kotlin/app/k9mail/feature/funding/googleplay/data/remote/GoogleBillingPurchaseHandler.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package app.k9mail.feature.funding.googleplay.data.remote | ||
|
|
||
| import app.k9mail.core.common.cache.Cache | ||
| import app.k9mail.feature.funding.googleplay.data.DataContract | ||
| import app.k9mail.feature.funding.googleplay.data.DataContract.Remote | ||
| import app.k9mail.feature.funding.googleplay.domain.entity.Contribution | ||
| import com.android.billingclient.api.AcknowledgePurchaseParams | ||
| import com.android.billingclient.api.BillingClient | ||
| import com.android.billingclient.api.BillingClient.BillingResponseCode | ||
| import com.android.billingclient.api.BillingClient.ProductType | ||
| import com.android.billingclient.api.BillingResult | ||
| import com.android.billingclient.api.ConsumeParams | ||
| import com.android.billingclient.api.ProductDetails | ||
| import com.android.billingclient.api.Purchase | ||
| import com.android.billingclient.api.acknowledgePurchase | ||
| import com.android.billingclient.api.consumePurchase | ||
| import timber.log.Timber | ||
|
|
||
| class GoogleBillingPurchaseHandler( | ||
| private val productCache: Cache<String, ProductDetails>, | ||
| private val productMapper: DataContract.Mapper.Product, | ||
| ) : Remote.GoogleBillingPurchaseHandler { | ||
|
|
||
| override suspend fun handlePurchases( | ||
| clientProvider: Remote.GoogleBillingClientProvider, | ||
| purchases: List<Purchase>, | ||
| ): List<Contribution> { | ||
| return purchases.flatMap { purchase -> | ||
| handlePurchase(clientProvider.current, purchase) | ||
| } | ||
| } | ||
|
|
||
| private suspend fun handlePurchase( | ||
| billingClient: BillingClient, | ||
| purchase: Purchase, | ||
| ): List<Contribution> { | ||
| // TODO verify purchase with public key | ||
| consumePurchase(billingClient, purchase) | ||
| acknowledgePurchase(billingClient, purchase) | ||
|
|
||
| return extractContributions(purchase) | ||
| } | ||
|
|
||
| private suspend fun acknowledgePurchase( | ||
| billingClient: BillingClient, | ||
| purchase: Purchase, | ||
| ) { | ||
| if (purchase.purchaseState == Purchase.PurchaseState.PURCHASED) { | ||
| if (!purchase.isAcknowledged) { | ||
| val acknowledgePurchaseParams = AcknowledgePurchaseParams.newBuilder() | ||
| .setPurchaseToken(purchase.purchaseToken) | ||
| .build() | ||
|
|
||
| val acknowledgeResult: BillingResult = billingClient.acknowledgePurchase(acknowledgePurchaseParams) | ||
|
|
||
| if (acknowledgeResult.responseCode != BillingResponseCode.OK) { | ||
| // TODO success | ||
| } else { | ||
| // handle acknowledge error | ||
| Timber.e("acknowledgePurchase failed") | ||
| } | ||
| } else { | ||
| Timber.e("purchase already acknowledged") | ||
| } | ||
| } else { | ||
| Timber.e("purchase not purchased") | ||
| } | ||
| } | ||
|
|
||
| private suspend fun consumePurchase( | ||
| billingClient: BillingClient, | ||
| purchase: Purchase, | ||
| ) { | ||
| val consumeParams = ConsumeParams.newBuilder() | ||
| .setPurchaseToken(purchase.purchaseToken) | ||
| .build() | ||
|
|
||
| // This could fail but we can ignore the error as we handle purchases | ||
| // the next time the purchases are requested | ||
| billingClient.consumePurchase(consumeParams) | ||
| } | ||
|
|
||
| private fun extractContributions(purchase: Purchase): List<Contribution> { | ||
| if (purchase.purchaseState != Purchase.PurchaseState.PURCHASED) { | ||
| return emptyList() | ||
| } | ||
|
|
||
| return purchase.products.mapNotNull { product -> | ||
| productCache[product] | ||
| }.filter { it.productType == ProductType.SUBS } | ||
| .map { productMapper.mapToContribution(it) } | ||
| } | ||
| } |