Add error for voucher code looks like an account number

Author: Rawa

android/app/src/main/kotlin/net/mullvad/mullvadvpn/compose/dialog/RedeemVoucherDialog.kt

@@ -275,10 +275,23 @@ private fun EnterVoucherBody(
             )
         }
     }
+    if (
+        state.voucherState is VoucherDialogState.Error &&
+            state.voucherState.error is RedeemVoucherError.EnteredAccountNumber
+    ) {
+        Text(
+            modifier = Modifier.padding(top = Dimens.smallPadding),
+            text = stringResource(id = R.string.voucher_is_account_number),
+            color = MaterialTheme.colorScheme.onPrimary,
+            style = MaterialTheme.typography.bodySmall
+        )
+    }
 }
 
 private fun RedeemVoucherError.message(): Int =
     when (this) {
+        RedeemVoucherError.TooShortVoucher,
+        RedeemVoucherError.EnteredAccountNumber,
         RedeemVoucherError.InvalidVoucher -> R.string.invalid_voucher
         RedeemVoucherError.VoucherAlreadyUsed -> R.string.voucher_already_used
         RedeemVoucherError.RpcError,

android/app/src/main/kotlin/net/mullvad/mullvadvpn/viewmodel/VoucherDialogViewModel.kt

@@ -2,6 +2,7 @@ package net.mullvad.mullvadvpn.viewmodel
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import arrow.core.raise.either
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.combine
@@ -11,7 +12,9 @@ import kotlinx.coroutines.launch
 import net.mullvad.mullvadvpn.compose.state.VoucherDialogState
 import net.mullvad.mullvadvpn.compose.state.VoucherDialogUiState
 import net.mullvad.mullvadvpn.constant.VOUCHER_LENGTH
+import net.mullvad.mullvadvpn.lib.model.ParseVoucherCodeError
 import net.mullvad.mullvadvpn.lib.model.RedeemVoucherError
+import net.mullvad.mullvadvpn.lib.model.VoucherCode
 import net.mullvad.mullvadvpn.lib.shared.VoucherRepository
 import net.mullvad.mullvadvpn.util.VoucherRegexHelper
 
@@ -26,11 +29,23 @@ class VoucherDialogViewModel(private val voucherRepository: VoucherRepository) :
             }
             .stateIn(viewModelScope, SharingStarted.WhileSubscribed(), VoucherDialogUiState.INITIAL)
 
-    fun onRedeem(voucherCode: String) {
+    fun onRedeem(voucherInput: String) {
         vmState.update { VoucherDialogState.Verifying }
         viewModelScope.launch {
-            voucherRepository
-                .submitVoucher(voucherCode)
+            either {
+                    val voucherCode =
+                        VoucherCode.fromString(voucherInput)
+                            .mapLeft {
+                                when (it) {
+                                    is ParseVoucherCodeError.AllDigit ->
+                                        RedeemVoucherError.EnteredAccountNumber
+                                    is ParseVoucherCodeError.TooShort ->
+                                        RedeemVoucherError.TooShortVoucher
+                                }
+                            }
+                            .bind()
+                    voucherRepository.submitVoucher(voucherCode).bind()
+                }
                 .fold(
                     { error -> setError(error) },
                     { success -> handleAddedTime(success.timeAdded) }

android/lib/daemon-grpc/src/main/kotlin/net/mullvad/mullvadvpn/lib/daemon/grpc/ManagementService.kt

@@ -116,6 +116,7 @@ import net.mullvad.mullvadvpn.lib.model.UnknownApiAccessMethodError
 import net.mullvad.mullvadvpn.lib.model.UnknownCustomListError
 import net.mullvad.mullvadvpn.lib.model.UpdateApiAccessMethodError
 import net.mullvad.mullvadvpn.lib.model.UpdateCustomListError
+import net.mullvad.mullvadvpn.lib.model.VoucherCode
 import net.mullvad.mullvadvpn.lib.model.WebsiteAuthToken
 import net.mullvad.mullvadvpn.lib.model.WireguardConstraints as ModelWireguardConstraints
 import net.mullvad.mullvadvpn.lib.model.WireguardEndpointData as ModelWireguardEndpointData
@@ -575,8 +576,10 @@ class ManagementService(
             .mapLeft(SetWireguardConstraintsError::Unknown)
             .mapEmpty()
 
-    suspend fun submitVoucher(voucher: String): Either<RedeemVoucherError, RedeemVoucherSuccess> =
-        Either.catch { grpc.submitVoucher(StringValue.of(voucher)).toDomain() }
+    suspend fun submitVoucher(
+        voucher: VoucherCode
+    ): Either<RedeemVoucherError, RedeemVoucherSuccess> =
+        Either.catch { grpc.submitVoucher(StringValue.of(voucher.value)).toDomain() }
             .mapLeftStatus {
                 when (it.status.code) {
                     Status.Code.INVALID_ARGUMENT,

android/lib/model/src/main/kotlin/net/mullvad/mullvadvpn/lib/model/RedeemVoucherError.kt

@@ -5,6 +5,10 @@ sealed class RedeemVoucherError {
 
     data object VoucherAlreadyUsed : RedeemVoucherError()
 
+    data object TooShortVoucher : RedeemVoucherError()
+
+    data object EnteredAccountNumber : RedeemVoucherError()
+
     data object RpcError : RedeemVoucherError()
 
     data class Unknown(val error: Throwable) : RedeemVoucherError()

android/lib/resource/src/main/res/values/strings.xml

@@ -33,6 +33,7 @@
     <string name="redeem">Redeem</string>
     <string name="invalid_voucher">Voucher code is invalid.</string>
     <string name="voucher_already_used">Voucher code has already been used.</string>
+    <string name="voucher_is_account_number">It looks like you’ve entered an account number instead of a voucher code. If you would like to change the active account, please log out first.</string>
     <string name="error_occurred">An error occurred.</string>
     <string name="settings">Settings</string>
     <string name="no_internet_connection">No internet connection</string>

android/lib/shared/src/main/kotlin/net/mullvad/mullvadvpn/lib/shared/VoucherRepository.kt

@@ -1,12 +1,13 @@
 package net.mullvad.mullvadvpn.lib.shared
 
 import net.mullvad.mullvadvpn.lib.daemon.grpc.ManagementService
+import net.mullvad.mullvadvpn.lib.model.VoucherCode
 
 class VoucherRepository(
     private val managementService: ManagementService,
     private val accountRepository: AccountRepository
 ) {
-    suspend fun submitVoucher(voucher: String) =
+    suspend fun submitVoucher(voucher: VoucherCode) =
         managementService.submitVoucher(voucher).onRight {
             accountRepository.onVoucherRedeemed(it.newExpiryDate)
         }

gui/locales/messages.pot

@@ -2318,6 +2318,9 @@ msgstr ""
 msgid "Invalid or missing value \"%s\""
 msgstr ""
 
+msgid "It looks like you’ve entered an account number instead of a voucher code. If you would like to change the active account, please log out first."
+msgstr ""
+
 msgid "Lets you select apps that should access the Internet directly without going through the VPN tunnel."
 msgstr ""