Updated on 2026-08-14

app/src/main/java/com/tangem/tap/network/NetworkConnectivity.kt

@@ -15,8 +15,8 @@ import java.lang.ref.WeakReference
 [REDACTED_AUTHOR]
  */
 class NetworkConnectivity(
-        private val store: Store<*>,
-        context: Context
+    private val store: Store<*>,
+    context: Context,
 ) {
 
     private val wContext: WeakReference<Context> = WeakReference(context)
@@ -34,19 +34,16 @@ class NetworkConnectivity(
         store.dispatch(NetworkStateChanged(isOnlineOrConnecting()))
     }
 
-
     fun isOnlineOrConnecting(): Boolean {
         val connectivityManager = getConnectivityManager() ?: return false
 
-        return if (Build.VERSION.SDK_INT >= 23) {
-            val capabilities =
-                    connectivityManager.getNetworkCapabilities(connectivityManager.activeNetwork)
-            (capabilities != null) &&
-                    (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) ||
-                            capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) ||
-                            capabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN) ||
-                            capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET))
-
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            val capabilities = connectivityManager.getNetworkCapabilities(connectivityManager.activeNetwork)
+            capabilities != null &&
+                (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) ||
+                    capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) ||
+                    capabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN) ||
+                    capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET))
         } else {
             val networkInfo = connectivityManager.activeNetworkInfo
             networkInfo != null && networkInfo.isConnectedOrConnecting
@@ -55,7 +52,7 @@ class NetworkConnectivity(
 
     private fun getConnectivityManager(): ConnectivityManager? {
         return wContext.get()?.applicationContext
-                ?.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager
+            ?.getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager
     }
 
     companion object {

app/src/main/java/com/tangem/tap/network/exchangeServices/CurrencyExchangeManager.kt

@@ -59,7 +59,7 @@ class CurrencyExchangeManager(
             blockchain,
             cryptoCurrencyName,
             fiatCurrencyName,
-            walletAddress
+            walletAddress,
         )
     }
 
@@ -86,7 +86,6 @@ class CurrencyExchangeManager(
     }
 }
 
-@Suppress("unused")
 suspend fun CurrencyExchangeManager.buyErc20TestnetTokens(
     card: CardDTO,
     walletManager: EthereumWalletManager,
@@ -97,13 +96,15 @@ suspend fun CurrencyExchangeManager.buyErc20TestnetTokens(
     val amountToSend = Amount(walletManager.wallet.blockchain)
     val destinationAddress = token.contractAddress
 
-    val feeResult = walletManager.getFee(amountToSend,
-        destinationAddress) as? Result.Success ?: return
+    val feeResult =
+        walletManager.getFee(
+            amountToSend,
+            destinationAddress,
+        ) as? Result.Success ?: return
     val fee = feeResult.data[0]
 
-    if ((walletManager.wallet.amounts[AmountType.Coin]?.value ?: BigDecimal.ZERO) < fee.value) {
-        return
-    }
+    val coinValue = walletManager.wallet.amounts[AmountType.Coin]?.value ?: BigDecimal.ZERO
+    if (coinValue < fee.value) return
 
     val transaction = walletManager.createTransaction(amountToSend, fee, destinationAddress)
 
@@ -116,8 +117,8 @@ suspend fun CurrencyExchangeManager.buyErc20TestnetTokens(
             GlobalAction.UpdateWalletSignedHashes(
                 walletSignedHashes = signResponse.totalSignedHashes,
                 walletPublicKey = walletManager.wallet.publicKey.seedKey,
-                remainingSignatures = signResponse.remainingSignatures
-            )
+                remainingSignatures = signResponse.remainingSignatures,
+            ),
         )
     }
     walletManager.send(transaction, signer)

app/src/main/java/com/tangem/tap/network/exchangeServices/mercuryo/MercuryoService.kt

@@ -33,11 +33,12 @@ class MercuryoService(
 
     override fun featureIsSwitchedOn(): Boolean = true
 
+    @Suppress("NestedBlockDepth")
     override suspend fun update() {
         when (val result = performRequest { api.currencies(apiVersion) }) {
             is Result.Success -> {
                 val response = result.data
-                if (response.status == 200) {
+                if (response.status == RESPONSE_SUCCESS_STATUS_CODE) {
                     // all currencies which can be bought
                     val currenciesAvailableToBy = response.data.crypto
                     // tokens which can be bought only from specific blockchain network
@@ -108,7 +109,7 @@ class MercuryoService(
         blockchain: Blockchain,
         cryptoCurrencyName: CryptoCurrencyName,
         fiatCurrencyName: String,
-        walletAddress: String
+        walletAddress: String,
     ): String {
         if (action == CurrencyExchangeManager.Action.Sell) throw UnsupportedOperationException()
 
@@ -131,10 +132,9 @@ class MercuryoService(
         return (address + secret).calculateSha512().toHexString().lowercase()
     }
 
-
     override fun getSellCryptoReceiptUrl(
         action: CurrencyExchangeManager.Action,
-        transactionId: String
+        transactionId: String,
     ): String? = null
 
     private fun blockchainFromCurrencyName(currencyName: String): Blockchain? = when (currencyName) {
@@ -143,4 +143,8 @@ class MercuryoService(
         "ADA" -> Blockchain.CardanoShelley
         else -> Blockchain.values().find { it.currency.lowercase() == currencyName.lowercase() }
     }
+
+    companion object {
+        private const val RESPONSE_SUCCESS_STATUS_CODE = 200
+    }
 }

app/src/main/java/com/tangem/tap/network/payid/PayIdVerifyApi.kt

@@ -11,34 +11,31 @@ import retrofit2.http.Path
 interface PayIdVerifyApi {
     @GET("{user}")
     suspend fun verifyAddress(
-            @Path("user") user: String,
-            @Header("Accept") acceptNetworkHeader: String,
-            @Header("PayID-Version") payIdVersion: String = "1.0"
+        @Path("user") user: String,
+        @Header("Accept") acceptNetworkHeader: String,
+        @Header("PayID-Version") payIdVersion: String = "1.0",
     ): VerifyPayIdResponse
 }
 
-
 @JsonClass(generateAdapter = true)
 data class VerifyPayIdResponse(
-        val addresses: List<PayIdAddress> = mutableListOf(),
-        val payId: String? = null,
+    val addresses: List<PayIdAddress> = mutableListOf(),
+    val payId: String? = null,
 ) {
-    fun getAddressDetails(): PayIdAddressDetails? {
-        return if (addresses.isEmpty()) null
-        else addresses[0].addressDetails
-    }
+    fun getAddressDetails(): PayIdAddressDetails? =
+        if (addresses.isNotEmpty()) addresses[0].addressDetails else null
 }
 
 @JsonClass(generateAdapter = true)
 data class PayIdAddress(
-        var paymentNetwork: String,
-        var environment: String,
-        var addressDetailsType: String,
-        var addressDetails: PayIdAddressDetails
+    var paymentNetwork: String,
+    var environment: String,
+    var addressDetailsType: String,
+    var addressDetails: PayIdAddressDetails,
 )
 
 @JsonClass(generateAdapter = true)
 data class PayIdAddressDetails(
-        var address: String,
-        var tag: String? = null
+    var address: String,
+    var tag: String? = null,
 )