Refactor FakeReducerViewModel + refactor provider management

Signed-off-by: Iván Ávalos <avalos@disroot.org>

15 files changed, 573 insertions, 465 deletions

diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/backup/BackupFinishedScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/backup/BackupFinishedScreen.kt
index fc89caa..df499be 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/backup/BackupFinishedScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/backup/BackupFinishedScreen.kt
@@ -53,10 +53,9 @@ import net.taler.anastasis.models.SuccessDetail
 import net.taler.anastasis.shared.Utils
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
-import net.taler.common.Timestamp
 
 @Composable
 fun BackupFinishedScreen(
@@ -168,29 +167,8 @@ fun ProviderCard(
 @Composable
 fun BackupFinishedScreenPreview() {
     BackupFinishedScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Backup(
-                backupState = BackupStates.BackupFinished,
-                authenticationProviders = mapOf(
-                    "https://localhost:8088/" to AuthenticationProviderStatus.Ok(
-                        httpStatus = 200,
-                        methods = listOf(),
-                        annualFee = "EUR:0.99",
-                        truthUploadFee = "EUR:3.99",
-                        liabilityLimit = "EUR:1",
-                        currency = "EUR",
-                        storageLimitInMegabytes = 1,
-                        businessName = "Anastasis 42",
-                        providerSalt = "BXAPCKSH9D3MYJTS9536RHJHCX",
-                    )
-                ),
-                successDetails = mapOf(
-                    "https://localhost:8088/" to SuccessDetail(
-                        policyVersion = 1,
-                        policyExpiration = Timestamp.now(),
-                    ),
-                ),
-            ),
-        ),
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.BackupFinished,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/backup/EditSecretScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/backup/EditSecretScreen.kt
index 9706ceb..799ebf2 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/backup/EditSecretScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/backup/EditSecretScreen.kt
@@ -29,17 +29,14 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.hilt.navigation.compose.hiltViewModel
 import net.taler.anastasis.R
 import net.taler.anastasis.models.BackupStates
-import net.taler.anastasis.models.CoreSecret
 import net.taler.anastasis.models.ReducerArgs
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.ui.forms.EditSecretForm
 import net.taler.anastasis.ui.reusable.pages.WizardPage
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
-import net.taler.common.Amount
 import net.taler.common.CryptoUtils
-import net.taler.common.Timestamp
 
 @Composable
 fun EditSecretScreen(
@@ -90,21 +87,8 @@ fun EditSecretScreen(
 @Composable
 fun EditSecretScreenPreview() {
     EditSecretScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Backup(
-                backupState = BackupStates.SecretEditing,
-                secretName = "_TALERWALLET_MyPinePhone",
-                coreSecret = CoreSecret(
-                    value = "EDJP6WK5EG50",
-                    mime = "text/plain",
-                ),
-                expiration = Timestamp.never(),
-                uploadFees = listOf(
-                    ReducerState.Backup.UploadFee(
-                        fee = Amount("KUDOS", 42L, 0),
-                    ),
-                ),
-            ),
-        ),
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.SecretEditing,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/backup/ReviewPoliciesScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/backup/ReviewPoliciesScreen.kt
index edd6ddb..0055589 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/backup/ReviewPoliciesScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/backup/ReviewPoliciesScreen.kt
@@ -55,14 +55,13 @@ import net.taler.anastasis.R
 import net.taler.anastasis.models.AuthMethod
 import net.taler.anastasis.models.AuthenticationProviderStatus
 import net.taler.anastasis.models.BackupStates
-import net.taler.anastasis.models.MethodSpec
 import net.taler.anastasis.models.Policy
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.ui.dialogs.EditPolicyDialog
 import net.taler.anastasis.ui.forms.EditPolicyForm
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
@@ -263,75 +262,8 @@ fun PolicyMethodCard(
 @Composable
 fun ReviewPoliciesScreenPreview() {
     ReviewPoliciesScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Backup(
-                backupState = BackupStates.PoliciesReviewing,
-                authenticationMethods = listOf(
-                    AuthMethod(
-                        type = AuthMethod.Type.Question,
-                        mimeType = "text/plain",
-                        challenge = "E1QPPS8A",
-                        instructions = "What is your favorite GNU package?",
-                    ),
-                    AuthMethod(
-                        type = AuthMethod.Type.Email,
-                        instructions = "E-mail to user@*le.com",
-                        challenge = "ENSPAWJ0CNW62VBGDHJJWRVFDM50",
-                    )
-                ),
-                authenticationProviders = mapOf(
-                    "http://localhost:8088/" to AuthenticationProviderStatus.Ok(
-                        httpStatus = 200,
-                        methods = listOf(
-                            MethodSpec(type = AuthMethod.Type.Question, usageFee = "EUR:0.001"),
-                            MethodSpec(type = AuthMethod.Type.Sms, usageFee = "EUR:0.55"),
-                        ),
-                        annualFee = "EUR:0.99",
-                        truthUploadFee = "EUR:3.99",
-                        liabilityLimit = "EUR:1",
-                        currency = "EUR",
-                        storageLimitInMegabytes = 1,
-                        businessName = "Anastasis 4",
-                        providerSalt = "CXAPCKSH9D3MYJTS9536RHJHCW",
-                    ),
-                    "http://localhost:8089/" to AuthenticationProviderStatus.Ok(
-                        httpStatus = 200,
-                        methods = listOf(
-                            MethodSpec(type = AuthMethod.Type.Question, usageFee = "EUR:0.001"),
-                            MethodSpec(type = AuthMethod.Type.Sms, usageFee = "EUR:0.55"),
-                        ),
-                        annualFee = "EUR:0.99",
-                        truthUploadFee = "EUR:3.99",
-                        liabilityLimit = "EUR:1",
-                        currency = "EUR",
-                        storageLimitInMegabytes = 1,
-                        businessName = "Anastasis 2",
-                        providerSalt = "CXAPCKSH9D3MYJTS9536RHJHCW",
-                    ),
-                ),
-                policies = listOf(
-                    Policy(
-                        methods = listOf(
-                            Policy.PolicyMethod(
-                                authenticationMethod = 0,
-                                provider = "http://localhost:8089/",
-                            ),
-                            Policy.PolicyMethod(
-                                authenticationMethod = 1,
-                                provider = "http://localhost:8088/",
-                            ),
-                        ),
-                    ),
-                    Policy(
-                        methods = listOf(
-                            Policy.PolicyMethod(
-                                authenticationMethod = 0,
-                                provider = "http://localhost:8089/",
-                            ),
-                        ),
-                    ),
-                ),
-            ),
-        ),
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.PoliciesReviewing,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/backup/SelectAuthMethodsScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/backup/SelectAuthMethodsScreen.kt
index 0b42534..584d853 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/backup/SelectAuthMethodsScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/backup/SelectAuthMethodsScreen.kt
@@ -20,29 +20,20 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Add
-import androidx.compose.material.icons.filled.CheckCircle
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material.icons.filled.EditOff
-import androidx.compose.material.icons.filled.Error
-import androidx.compose.material.icons.filled.QuestionMark
-import androidx.compose.material.icons.filled.SyncDisabled
 import androidx.compose.material3.Divider
 import androidx.compose.material3.ElevatedCard
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
@@ -62,14 +53,13 @@ import net.taler.anastasis.R
 import net.taler.anastasis.models.AuthMethod
 import net.taler.anastasis.models.AuthenticationProviderStatus
 import net.taler.anastasis.models.BackupStates
-import net.taler.anastasis.models.MethodSpec
 import net.taler.anastasis.models.ReducerState
+import net.taler.anastasis.ui.common.ManageProvidersScreen
 import net.taler.anastasis.ui.dialogs.EditMethodDialog
-import net.taler.anastasis.ui.dialogs.EditProviderDialog
 import net.taler.anastasis.ui.reusable.components.ActionCard
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 import net.taler.common.CryptoUtils
@@ -131,7 +121,7 @@ fun SelectAuthMethodsScreen(
         isLoading = isLoading,
     ) { scroll ->
         if (manageProviders) {
-            ManageBackupProviders(
+            ManageProvidersScreen(
                 nestedScrollConnection = scroll,
                 authProviders = authProviders,
                 onAddProvider = {
@@ -284,173 +274,13 @@ private fun ChallengeCard(
     }
 }
 
-@OptIn(ExperimentalMaterial3Api::class)
-@Composable
-fun ManageBackupProviders(
-    nestedScrollConnection: NestedScrollConnection,
-    authProviders: Map<String, AuthenticationProviderStatus>,
-    onAddProvider: (url: String) -> Unit,
-    onDeleteProvider: (url: String) -> Unit,
-) {
-    var showEditDialog by remember { mutableStateOf(false) }
-
-    if (showEditDialog) {
-        EditProviderDialog(
-            onProviderEdited = onAddProvider,
-            onCancel = { showEditDialog = false }
-        )
-    }
-
-    Scaffold(
-        floatingActionButton = {
-            FloatingActionButton(onClick = {
-                showEditDialog = true
-            }) {
-                Icon(
-                    Icons.Default.Add,
-                    contentDescription = stringResource(R.string.add),
-                )
-            }
-        },
-    ) { padding ->
-        LazyColumn(
-            modifier = Modifier
-                .padding(padding)
-                .nestedScroll(nestedScrollConnection)
-                .fillMaxSize(),
-            verticalArrangement = Arrangement.Top,
-        ) {
-            items(items = authProviders.keys.toList()) { url ->
-                val status = authProviders[url]!!
-                ProviderCard(
-                    modifier = Modifier
-                        .padding(
-                            end = LocalSpacing.current.medium,
-                            bottom = LocalSpacing.current.small,
-                            start = LocalSpacing.current.medium,
-                        )
-                        .fillMaxWidth(),
-                    url = url,
-                    status = status,
-                    onDelete = { onDeleteProvider(url) },
-                )
-            }
-        }
-    }
-}
-
-@Composable
-fun ProviderCard(
-    modifier: Modifier = Modifier,
-    url: String,
-    status: AuthenticationProviderStatus,
-    onDelete: () -> Unit,
-) {
-    ElevatedCard(
-        modifier = modifier,
-    ) {
-        Row(
-            modifier = Modifier
-                .padding(LocalSpacing.current.medium)
-                .fillMaxWidth(),
-            verticalAlignment = Alignment.CenterVertically,
-        ) {
-            when (status) {
-                is AuthenticationProviderStatus.Ok -> Icon(
-                    Icons.Default.CheckCircle,
-                    contentDescription = stringResource(R.string.provider_status_ok),
-                    tint = MaterialTheme.colorScheme.primary,
-                )
-                is AuthenticationProviderStatus.Disabled -> Icon(
-                    Icons.Default.SyncDisabled,
-                    contentDescription = stringResource(R.string.provider_status_disabled),
-                    tint = MaterialTheme.colorScheme.primary,
-                )
-                is AuthenticationProviderStatus.Error -> Icon(
-                    Icons.Default.Error,
-                    contentDescription = stringResource(R.string.provider_status_error),
-                    tint = MaterialTheme.colorScheme.error,
-                )
-                is AuthenticationProviderStatus.NotContacted -> Icon(
-                    Icons.Default.QuestionMark,
-                    contentDescription = stringResource(R.string.provider_status_not_contacted),
-                    tint = MaterialTheme.colorScheme.primary,
-                )
-            }
-            Spacer(Modifier.width(12.dp))
-            Column(
-                modifier = Modifier.weight(1f),
-            ) {
-                Text(url, style = MaterialTheme.typography.labelLarge)
-                if (status is AuthenticationProviderStatus.Ok) {
-                    Text(status.businessName, style = MaterialTheme.typography.labelMedium)
-                }
-            }
-            Spacer(Modifier.width(12.dp))
-            IconButton(onClick = onDelete) {
-                Icon(
-                    Icons.Default.Delete,
-                    contentDescription = stringResource(R.string.delete),
-                )
-            }
-        }
-    }
-}
-
-private val fakeViewModel = FakeReducerViewModel(
-    state = ReducerState.Backup(
-        backupState = BackupStates.AuthenticationsEditing,
-        authenticationMethods = listOf(
-            AuthMethod(
-                type = AuthMethod.Type.Question,
-                mimeType = "text/plain",
-                challenge = "E1QPPS8A",
-                instructions = "What is your favorite GNU package?",
-            ),
-            AuthMethod(
-                type = AuthMethod.Type.Email,
-                instructions = "E-mail to user@*le.com",
-                challenge = "ENSPAWJ0CNW62VBGDHJJWRVFDM50",
-            )
-        ),
-        authenticationProviders = mapOf(
-            "http://localhost:8088/" to AuthenticationProviderStatus.Ok(
-                httpStatus = 200,
-                methods = listOf(
-                    MethodSpec(type = AuthMethod.Type.Question, usageFee = "EUR:0.001"),
-                    MethodSpec(type = AuthMethod.Type.Sms, usageFee = "EUR:0.55"),
-                ),
-                annualFee = "EUR:0.99",
-                truthUploadFee = "EUR:3.99",
-                liabilityLimit = "EUR:1",
-                currency = "EUR",
-                storageLimitInMegabytes = 1,
-                businessName = "Anastasis 4",
-                providerSalt = "CXAPCKSH9D3MYJTS9536RHJHCW",
-            ),
-            "http://localhost:8089/" to AuthenticationProviderStatus.Ok(
-                httpStatus = 200,
-                methods = listOf(
-                    MethodSpec(type = AuthMethod.Type.Question, usageFee = "EUR:0.001"),
-                    MethodSpec(type = AuthMethod.Type.Sms, usageFee = "EUR:0.55"),
-                ),
-                annualFee = "EUR:0.99",
-                truthUploadFee = "EUR:3.99",
-                liabilityLimit = "EUR:1",
-                currency = "EUR",
-                storageLimitInMegabytes = 1,
-                businessName = "Anastasis 2",
-                providerSalt = "CXAPCKSH9D3MYJTS9536RHJHCW",
-            ),
-        ),
-    ),
-)
-
 @Preview
 @Composable
 fun SelectAuthMethodsScreenPreview() {
     SelectAuthMethodsScreen(
-        viewModel = fakeViewModel,
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.AuthenticationsEditing,
+        ),
     )
 }
 
@@ -458,7 +288,9 @@ fun SelectAuthMethodsScreenPreview() {
 @Composable
 fun ManageBackupProvidersPreview() {
     SelectAuthMethodsScreen(
-        viewModel = fakeViewModel,
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.AuthenticationsEditing,
+        ),
         showManageProviders = true,
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/common/ManageProvidersScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/common/ManageProvidersScreen.kt
new file mode 100644
index 0000000..e0d4b7e
--- /dev/null
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/common/ManageProvidersScreen.kt
@@ -0,0 +1,171 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2023 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.anastasis.ui.common
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.CheckCircle
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.icons.filled.Error
+import androidx.compose.material.icons.filled.QuestionMark
+import androidx.compose.material.icons.filled.SyncDisabled
+import androidx.compose.material3.ElevatedCard
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
+import androidx.compose.ui.input.nestedscroll.nestedScroll
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import net.taler.anastasis.R
+import net.taler.anastasis.models.AuthenticationProviderStatus
+import net.taler.anastasis.ui.dialogs.EditProviderDialog
+import net.taler.anastasis.ui.theme.LocalSpacing
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun ManageProvidersScreen(
+    nestedScrollConnection: NestedScrollConnection,
+    authProviders: Map<String, AuthenticationProviderStatus>,
+    onAddProvider: (url: String) -> Unit,
+    onDeleteProvider: (url: String) -> Unit,
+) {
+    var showEditDialog by remember { mutableStateOf(false) }
+
+    if (showEditDialog) {
+        EditProviderDialog(
+            onProviderEdited = onAddProvider,
+            onCancel = { showEditDialog = false }
+        )
+    }
+
+    Scaffold(
+        floatingActionButton = {
+            FloatingActionButton(onClick = {
+                showEditDialog = true
+            }) {
+                Icon(
+                    Icons.Default.Add,
+                    contentDescription = stringResource(R.string.add),
+                )
+            }
+        },
+    ) { padding ->
+        LazyColumn(
+            modifier = Modifier
+                .padding(padding)
+                .nestedScroll(nestedScrollConnection)
+                .fillMaxSize(),
+            verticalArrangement = Arrangement.Top,
+        ) {
+            items(items = authProviders.keys.toList()) { url ->
+                val status = authProviders[url]!!
+                ProviderCard(
+                    modifier = Modifier
+                        .padding(
+                            end = LocalSpacing.current.medium,
+                            bottom = LocalSpacing.current.small,
+                            start = LocalSpacing.current.medium,
+                        )
+                        .fillMaxWidth(),
+                    url = url,
+                    status = status,
+                    onDelete = { onDeleteProvider(url) },
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun ProviderCard(
+    modifier: Modifier = Modifier,
+    url: String,
+    status: AuthenticationProviderStatus,
+    onDelete: () -> Unit,
+) {
+    ElevatedCard(
+        modifier = modifier,
+    ) {
+        Row(
+            modifier = Modifier
+                .padding(LocalSpacing.current.medium)
+                .fillMaxWidth(),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            when (status) {
+                is AuthenticationProviderStatus.Ok -> Icon(
+                    Icons.Default.CheckCircle,
+                    contentDescription = stringResource(R.string.provider_status_ok),
+                    tint = MaterialTheme.colorScheme.primary,
+                )
+                is AuthenticationProviderStatus.Disabled -> Icon(
+                    Icons.Default.SyncDisabled,
+                    contentDescription = stringResource(R.string.provider_status_disabled),
+                    tint = MaterialTheme.colorScheme.primary,
+                )
+                is AuthenticationProviderStatus.Error -> Icon(
+                    Icons.Default.Error,
+                    contentDescription = stringResource(R.string.provider_status_error),
+                    tint = MaterialTheme.colorScheme.error,
+                )
+                is AuthenticationProviderStatus.NotContacted -> Icon(
+                    Icons.Default.QuestionMark,
+                    contentDescription = stringResource(R.string.provider_status_not_contacted),
+                    tint = MaterialTheme.colorScheme.primary,
+                )
+            }
+            Spacer(Modifier.width(12.dp))
+            Column(
+                modifier = Modifier.weight(1f),
+            ) {
+                Text(url, style = MaterialTheme.typography.labelLarge)
+                if (status is AuthenticationProviderStatus.Ok) {
+                    Text(status.businessName, style = MaterialTheme.typography.labelMedium)
+                }
+            }
+            Spacer(Modifier.width(12.dp))
+            IconButton(onClick = onDelete) {
+                Icon(
+                    Icons.Default.Delete,
+                    contentDescription = stringResource(R.string.delete),
+                )
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectContinentScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectContinentScreen.kt
index 10a8978..c803ffe 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectContinentScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectContinentScreen.kt
@@ -32,12 +32,11 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.hilt.navigation.compose.hiltViewModel
 import net.taler.anastasis.R
 import net.taler.anastasis.models.BackupStates
-import net.taler.anastasis.models.ContinentInfo
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.ui.reusable.components.Picker
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
@@ -99,15 +98,8 @@ fun SelectContinentScreen(
 @Composable
 fun SelectContinentScreenPreview() {
     SelectContinentScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Backup(
-                backupState = BackupStates.ContinentSelecting,
-                selectedContinent = "Europe",
-                continents = listOf(
-                    ContinentInfo(name = "Europe"),
-                    ContinentInfo(name = "North America"),
-                )
-            )
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.ContinentSelecting,
         )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectCountryScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectCountryScreen.kt
index f137e5e..ba8136e 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectCountryScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectCountryScreen.kt
@@ -32,12 +32,11 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.hilt.navigation.compose.hiltViewModel
 import net.taler.anastasis.R
 import net.taler.anastasis.models.BackupStates
-import net.taler.anastasis.models.CountryInfo
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.ui.reusable.components.Picker
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
@@ -99,23 +98,8 @@ fun SelectCountryScreen(
 @Composable
 fun SelectCountryScreenPreview() {
     SelectCountryScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Backup(
-                backupState = BackupStates.ContinentSelecting,
-                selectedCountry = "ch",
-                countries = listOf(
-                    CountryInfo(
-                        code = "ch",
-                        name = "Switzerland",
-                        continent = "Europe",
-                    ),
-                    CountryInfo(
-                        code = "de",
-                        name = "Germany",
-                        continent = "Europe",
-                    )
-                )
-            )
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.CountrySelecting,
         )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectUserAttributesScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectUserAttributesScreen.kt
index 6c09ae5..fe90eff 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectUserAttributesScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/common/SelectUserAttributesScreen.kt
@@ -51,7 +51,7 @@ import net.taler.anastasis.shared.Utils
 import net.taler.anastasis.ui.reusable.components.DatePickerField
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeBackupViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
@@ -166,30 +166,8 @@ private fun fieldStatus(
 @Composable
 fun SelectUserAttributesScreenPreview() {
     SelectUserAttributesScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Backup(
-                backupState = BackupStates.UserAttributesCollecting,
-                identityAttributes = mapOf(
-                    "full_name" to "Max Musterman",
-                    "birthdate" to "2000-01-01",
-                ),
-                requiredAttributes = listOf(
-                    UserAttributeSpec(
-                        type = "string",
-                        name = "full_name",
-                        label = "Full name",
-                        widget = "anastasis_gtk_ia_full_name",
-                        uuid = "9e8f463f-575f-42cb-85f3-759559997331",
-                    ),
-                    UserAttributeSpec(
-                        type = "date",
-                        name = "birthdate",
-                        label = "Birthdate",
-                        widget = "anastasis_gtk_ia_birthdate",
-                        uuid = "83d655c7-bdb6-484d-904e-80c1058c8854",
-                    ),
-                ),
-            ),
-        ),
+        viewModel = FakeBackupViewModel(
+            backupState = BackupStates.UserAttributesCollecting,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/RecoveryFinishedScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/RecoveryFinishedScreen.kt
index 9cc58e5..aa43200 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/RecoveryFinishedScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/RecoveryFinishedScreen.kt
@@ -41,13 +41,11 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.hilt.navigation.compose.hiltViewModel
 import net.taler.anastasis.R
-import net.taler.anastasis.models.CoreSecret
-import net.taler.anastasis.models.RecoveryInternalData
 import net.taler.anastasis.models.RecoveryStates
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeRecoveryViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 import net.taler.common.CryptoUtils
@@ -124,19 +122,8 @@ fun RecoveryFinishedScreen(
 @Composable
 fun RecoveryFinishedScreenPreview() {
     RecoveryFinishedScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Recovery(
-                recoveryState = RecoveryStates.RecoveryFinished,
-                recoveryDocument = RecoveryInternalData(
-                    secretName = "Secret",
-                    providerUrl = "http://localhost:8089",
-                    version = 1,
-                ),
-                coreSecret = CoreSecret(
-                    mime = "text/plain",
-                    value = CryptoUtils.encodeCrock("Taler".toByteArray(Charsets.UTF_8)),
-                )
-            ),
-        ),
+        viewModel = FakeRecoveryViewModel(
+            recoveryState = RecoveryStates.RecoveryFinished,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectChallengeScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectChallengeScreen.kt
index df7afdf..742ad0b 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectChallengeScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectChallengeScreen.kt
@@ -45,7 +45,6 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.hilt.navigation.compose.hiltViewModel
 import net.taler.anastasis.R
-import net.taler.anastasis.models.AuthMethod
 import net.taler.anastasis.models.ChallengeFeedback
 import net.taler.anastasis.models.ChallengeInfo
 import net.taler.anastasis.models.RecoveryInformation
@@ -53,7 +52,7 @@ import net.taler.anastasis.models.RecoveryStates
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeRecoveryViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
@@ -225,34 +224,8 @@ fun FeedbackSolvedButton() {
 @Composable
 fun SelectChallengeScreenPreview() {
     SelectChallengeScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Recovery(
-                recoveryState = RecoveryStates.ChallengeSelecting,
-                recoveryInformation = RecoveryInformation(
-                    challenges = listOf(
-                        ChallengeInfo(
-                            instructions = "What is your favorite GNU package?",
-                            type = AuthMethod.Type.Question,
-                            uuid = "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0",
-                        ),
-                        ChallengeInfo(
-                            instructions = "E-mail to user@*le.com",
-                            type = AuthMethod.Type.Email,
-                            uuid = "ZA6T35B8XAR0DNKS5H100GK8PDPTA7Q8ST2FPQSYAZ4QRAA9XKK0",
-                        ),
-                    ),
-                    policies = listOf(
-                        listOf(
-                            RecoveryInformation.Policy(uuid = "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0"),
-                            RecoveryInformation.Policy(uuid = "ZA6T35B8XAR0DNKS5H100GK8PDPTA7Q8ST2FPQSYAZ4QRAA9XKK0")
-                        ),
-                    ),
-                ),
-                challengeFeedback = mapOf(
-                    "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0" to ChallengeFeedback.IncorrectAnswer,
-                    "ZA6T35B8XAR0DNKS5H100GK8PDPTA7Q8ST2FPQSYAZ4QRAA9XKK0" to ChallengeFeedback.Solved,
-                ),
-            ),
-        ),
+        viewModel = FakeRecoveryViewModel(
+            recoveryState = RecoveryStates.ChallengeSelecting,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectSecretScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectSecretScreen.kt
index 71e1d5e..872886a 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectSecretScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SelectSecretScreen.kt
@@ -24,8 +24,13 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.EditOff
 import androidx.compose.material3.ElevatedCard
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.RadioButton
 import androidx.compose.material3.Text
@@ -37,6 +42,8 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.nestedscroll.NestedScrollConnection
+import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
@@ -45,16 +52,17 @@ import net.taler.anastasis.R
 import net.taler.anastasis.models.AggregatedPolicyMetaInfo
 import net.taler.anastasis.models.RecoveryStates
 import net.taler.anastasis.models.ReducerState
-import net.taler.anastasis.models.SelectedVersionInfo
+import net.taler.anastasis.ui.common.ManageProvidersScreen
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
-import net.taler.anastasis.viewmodels.FakeReducerViewModel
+import net.taler.anastasis.viewmodels.FakeRecoveryViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
 @Composable
 fun SelectSecretScreen(
     viewModel: ReducerViewModelI = hiltViewModel<ReducerViewModel>(),
+    showManageProviders: Boolean = false,
 ) {
     val state by viewModel.reducerState.collectAsState()
     val reducerState = state as? ReducerState.Recovery
@@ -63,12 +71,17 @@ fun SelectSecretScreen(
     val tasks by viewModel.tasks.collectAsState()
     val isLoading = tasks.isBackgroundLoading
 
+    val authProviders = reducerState.authenticationProviders ?: emptyMap()
     val versions = reducerState.discoveryState?.aggregatedPolicies ?: emptyList()
 
     var selectedIndex by remember { mutableStateOf<Int?>(null) }
 
+    var manageProviders by remember { mutableStateOf(showManageProviders) }
+
     WizardPage(
-        title = stringResource(R.string.select_secret_title),
+        title = if (manageProviders)
+            stringResource(R.string.recovery_providers)
+        else stringResource(R.string.select_auth_methods_title),
         enableNext = selectedIndex != null,
         onBackClicked = { viewModel.goHome() },
         onPrevClicked = { viewModel.goBack() },
@@ -77,22 +90,70 @@ fun SelectSecretScreen(
                 viewModel.reducerManager?.selectVersion(versions[it])
             }
         },
+        actions = {
+            IconButton(onClick = {
+                manageProviders = !manageProviders
+            }) {
+                if (manageProviders) {
+                    Icon(
+                        Icons.Default.EditOff,
+                        contentDescription = stringResource(R.string.select_auth_methods_title)
+                    )
+                } else {
+                    Icon(
+                        Icons.Default.Edit,
+                        contentDescription = stringResource(R.string.manage_backup_providers),
+                    )
+                }
+
+            }
+        },
         isLoading = isLoading,
+    ) { scroll ->
+        if (manageProviders) {
+            ManageProvidersScreen(
+                nestedScrollConnection = scroll,
+                authProviders = authProviders,
+                onAddProvider = {
+                    viewModel.reducerManager?.addProvider(it)
+                },
+                onDeleteProvider = {
+                    viewModel.reducerManager?.deleteProvider(it)
+                },
+            )
+        } else {
+            SecretList(
+                scrollConnection = scroll,
+                versions = versions,
+                selectedIndex = selectedIndex,
+                onSelectIndex = { selectedIndex = it }
+            )
+        }
+    }
+}
+
+@Composable
+fun SecretList(
+    scrollConnection: NestedScrollConnection,
+    versions: List<AggregatedPolicyMetaInfo>,
+    selectedIndex: Int?,
+    onSelectIndex: (Int) -> Unit,
+) {
+    LazyColumn(
+        modifier = Modifier.nestedScroll(scrollConnection),
     ) {
-        LazyColumn {
-            items(count = versions.size) { index ->
-                SecretCard(
-                    modifier = Modifier
-                        .padding(
-                            start = LocalSpacing.current.medium,
-                            end = LocalSpacing.current.medium,
-                            bottom = LocalSpacing.current.small,
-                        )
-                        .fillMaxWidth(),
-                    policy = versions[index],
-                    isSelected = selectedIndex == index,
-                ) { selectedIndex = index }
-            }
+        items(count = versions.size) { index ->
+            SecretCard(
+                modifier = Modifier
+                    .padding(
+                        start = LocalSpacing.current.medium,
+                        end = LocalSpacing.current.medium,
+                        bottom = LocalSpacing.current.small,
+                    )
+                    .fillMaxWidth(),
+                policy = versions[index],
+                isSelected = selectedIndex == index,
+            ) { onSelectIndex(index) }
         }
     }
 }
@@ -146,30 +207,8 @@ fun SecretCard(
 @Composable
 fun SelectSecretScreenPreview() {
     SelectSecretScreen(
-        viewModel = FakeReducerViewModel(
-            state = ReducerState.Recovery(
-                recoveryState = RecoveryStates.SecretSelecting,
-                discoveryState = ReducerState.Recovery.DiscoveryState(
-                    state = "finished",
-                    aggregatedPolicies = listOf(
-                        AggregatedPolicyMetaInfo(
-                            attributeMask = 0,
-                            policyHash = "000000000000000000000000000000000000000000000000000B28GR6691Y51HR2SAFJZFF0DCMRDZD1YQMS03A55P9NCWHQGEKW8",
-                            providers = listOf(
-                                SelectedVersionInfo.Provider(
-                                    url = "https://v1.anastasis.taler.net/",
-                                    version = 1,
-                                ),
-                                SelectedVersionInfo.Provider(
-                                    url = "https://v1.anastasis.codeblau.de/",
-                                    version = 1,
-                                ),
-                            ),
-                            secretName = "Secret",
-                        ),
-                    ),
-                ),
-            ),
-        ),
+        viewModel = FakeRecoveryViewModel(
+            recoveryState = RecoveryStates.SecretSelecting,
+        )
     )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SolveChallengeScreen.kt b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SolveChallengeScreen.kt
index d644385..cc0b4c6 100644
--- a/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SolveChallengeScreen.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/recovery/SolveChallengeScreen.kt
@@ -37,11 +37,13 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import net.taler.anastasis.R
 import net.taler.anastasis.models.AuthMethod
 import net.taler.anastasis.models.ChallengeFeedback
+import net.taler.anastasis.models.RecoveryStates
 import net.taler.anastasis.models.ReducerState
 import net.taler.anastasis.shared.Utils
 import net.taler.anastasis.ui.forms.EditAnswerForm
 import net.taler.anastasis.ui.reusable.pages.WizardPage
 import net.taler.anastasis.ui.theme.LocalSpacing
+import net.taler.anastasis.viewmodels.FakeRecoveryViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModel
 import net.taler.anastasis.viewmodels.ReducerViewModelI
 
@@ -145,5 +147,9 @@ fun SolveChallengeScreen(
 @Preview
 @Composable
 fun SolveChallengeScreenPreview() {
-    SolveChallengeScreen()
+    SolveChallengeScreen(
+        viewModel = FakeRecoveryViewModel(
+            recoveryState = RecoveryStates.ChallengeSolving,
+        )
+    )
 }
\ No newline at end of file
diff --git a/anastasis/src/main/java/net/taler/anastasis/viewmodels/FakeReducerViewModel.kt b/anastasis/src/main/java/net/taler/anastasis/viewmodels/FakeReducerViewModel.kt
new file mode 100644
index 0000000..3f482e4
--- /dev/null
+++ b/anastasis/src/main/java/net/taler/anastasis/viewmodels/FakeReducerViewModel.kt
@@ -0,0 +1,274 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2023 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.anastasis.viewmodels
+
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import net.taler.anastasis.backend.TalerErrorInfo
+import net.taler.anastasis.backend.Tasks
+import net.taler.anastasis.models.AggregatedPolicyMetaInfo
+import net.taler.anastasis.models.AuthMethod
+import net.taler.anastasis.models.AuthenticationProviderStatus
+import net.taler.anastasis.models.BackupStates
+import net.taler.anastasis.models.ChallengeFeedback
+import net.taler.anastasis.models.ChallengeInfo
+import net.taler.anastasis.models.ContinentInfo
+import net.taler.anastasis.models.CoreSecret
+import net.taler.anastasis.models.CountryInfo
+import net.taler.anastasis.models.MethodSpec
+import net.taler.anastasis.models.Policy
+import net.taler.anastasis.models.RecoveryInformation
+import net.taler.anastasis.models.RecoveryInternalData
+import net.taler.anastasis.models.RecoveryStates
+import net.taler.anastasis.models.ReducerState
+import net.taler.anastasis.models.SelectedVersionInfo
+import net.taler.anastasis.models.SuccessDetail
+import net.taler.anastasis.models.UserAttributeSpec
+import net.taler.common.Amount
+import net.taler.common.Timestamp
+
+open class FakeReducerViewModel(
+    state: ReducerState,
+    error: TalerErrorInfo? = null,
+): ReducerViewModelI {
+    override val reducerManager = null
+    private val _reducerState = MutableStateFlow<ReducerState?>(state)
+    override val reducerState: StateFlow<ReducerState?> = _reducerState.asStateFlow()
+    private val _reducerError = MutableStateFlow(error)
+    override val reducerError: StateFlow<TalerErrorInfo?> = _reducerError.asStateFlow()
+    private val _loading = MutableStateFlow(Tasks())
+    override val tasks = _loading.asStateFlow()
+
+    override fun goBack(): Boolean = false
+
+    override fun goHome() {
+        _reducerState.value = null
+    }
+
+    override fun cleanError() {
+        _reducerError.value = null
+    }
+}
+
+internal val continents = listOf(
+    ContinentInfo(name = "Europe"),
+    ContinentInfo(name = "North America"),
+)
+
+internal val countries = listOf(
+    CountryInfo(
+        code = "ch",
+        name = "Switzerland",
+        continent = "Europe",
+    ),
+    CountryInfo(
+        code = "de",
+        name = "Germany",
+        continent = "Europe",
+    )
+)
+
+internal val identityAttributes = mapOf(
+    "full_name" to "Max Musterman",
+    "birthdate" to "2000-01-01",
+)
+
+internal val authenticationProviders = mapOf(
+    "http://localhost:8088/" to AuthenticationProviderStatus.Ok(
+        httpStatus = 200,
+        methods = listOf(
+            MethodSpec(type = AuthMethod.Type.Question, usageFee = "EUR:0.001"),
+            MethodSpec(type = AuthMethod.Type.Sms, usageFee = "EUR:0.55"),
+        ),
+        annualFee = "EUR:0.99",
+        truthUploadFee = "EUR:3.99",
+        liabilityLimit = "EUR:1",
+        currency = "EUR",
+        storageLimitInMegabytes = 1,
+        businessName = "Anastasis 4",
+        providerSalt = "CXAPCKSH9D3MYJTS9536RHJHCW",
+    ),
+    "http://localhost:8089/" to AuthenticationProviderStatus.Ok(
+        httpStatus = 200,
+        methods = listOf(
+            MethodSpec(type = AuthMethod.Type.Question, usageFee = "EUR:0.001"),
+            MethodSpec(type = AuthMethod.Type.Sms, usageFee = "EUR:0.55"),
+        ),
+        annualFee = "EUR:0.99",
+        truthUploadFee = "EUR:3.99",
+        liabilityLimit = "EUR:1",
+        currency = "EUR",
+        storageLimitInMegabytes = 1,
+        businessName = "Anastasis 2",
+        providerSalt = "CXAPCKSH9D3MYJTS9536RHJHCW",
+    )
+)
+
+internal val requiredAttributes = listOf(
+    UserAttributeSpec(
+        type = "string",
+        name = "full_name",
+        label = "Full name",
+        widget = "anastasis_gtk_ia_full_name",
+        uuid = "9e8f463f-575f-42cb-85f3-759559997331",
+    ),
+    UserAttributeSpec(
+        type = "date",
+        name = "birthdate",
+        label = "Birthdate",
+        widget = "anastasis_gtk_ia_birthdate",
+        uuid = "83d655c7-bdb6-484d-904e-80c1058c8854",
+    ),
+)
+
+internal const val selectedContinent = "Europe"
+internal const val selectedCountry = "ch"
+
+internal val coreSecret = CoreSecret(
+    value = "EDJP6WK5EG50",
+    mime = "text/plain",
+)
+
+class FakeBackupViewModel(
+    backupState: BackupStates,
+): FakeReducerViewModel(
+    state = ReducerState.Backup(
+        backupState = backupState,
+        continents = continents,
+        countries = countries,
+        identityAttributes = identityAttributes,
+        authenticationProviders = authenticationProviders,
+        authenticationMethods = listOf(
+            AuthMethod(
+                type = AuthMethod.Type.Question,
+                mimeType = "text/plain",
+                challenge = "E1QPPS8A",
+                instructions = "What is your favorite GNU package?",
+            ),
+            AuthMethod(
+                type = AuthMethod.Type.Email,
+                instructions = "E-mail to user@*le.com",
+                challenge = "ENSPAWJ0CNW62VBGDHJJWRVFDM50",
+            )
+        ),
+        requiredAttributes = requiredAttributes,
+        selectedContinent = selectedContinent,
+        selectedCountry = selectedCountry,
+        secretName = "_TALERWALLET_MyPinePhone",
+        policies = listOf(
+            Policy(
+                methods = listOf(
+                    Policy.PolicyMethod(
+                        authenticationMethod = 0,
+                        provider = "http://localhost:8089/",
+                    ),
+                    Policy.PolicyMethod(
+                        authenticationMethod = 1,
+                        provider = "http://localhost:8088/",
+                    ),
+                ),
+            ),
+            Policy(
+                methods = listOf(
+                    Policy.PolicyMethod(
+                        authenticationMethod = 0,
+                        provider = "http://localhost:8089/",
+                    ),
+                ),
+            ),
+        ),
+        successDetails = mapOf(
+            "http://localhost:8088/" to SuccessDetail(
+                policyVersion = 1,
+                policyExpiration = Timestamp.now(),
+            ),
+        ),
+        coreSecret = coreSecret,
+        uploadFees = listOf(
+            ReducerState.Backup.UploadFee(
+                fee = Amount("KUDOS", 42L, 0),
+            ),
+        ),
+    ),
+)
+
+class FakeRecoveryViewModel(
+    recoveryState: RecoveryStates,
+): FakeReducerViewModel(
+    state = ReducerState.Recovery(
+        recoveryState = recoveryState,
+        continents = continents,
+        countries = countries,
+        identityAttributes = identityAttributes,
+        selectedContinent = selectedContinent,
+        selectedCountry = selectedCountry,
+        requiredAttributes = requiredAttributes,
+        recoveryInformation = RecoveryInformation(
+            challenges = listOf(
+                ChallengeInfo(
+                    instructions = "What is your favorite GNU package?",
+                    type = AuthMethod.Type.Question,
+                    uuid = "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0",
+                ),
+                ChallengeInfo(
+                    instructions = "E-mail to user@*le.com",
+                    type = AuthMethod.Type.Email,
+                    uuid = "ZA6T35B8XAR0DNKS5H100GK8PDPTA7Q8ST2FPQSYAZ4QRAA9XKK0",
+                ),
+            ),
+            policies = listOf(
+                listOf(
+                    RecoveryInformation.Policy(uuid = "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0"),
+                    RecoveryInformation.Policy(uuid = "ZA6T35B8XAR0DNKS5H100GK8PDPTA7Q8ST2FPQSYAZ4QRAA9XKK0")
+                ),
+            ),
+        ),
+        recoveryDocument = RecoveryInternalData(
+            secretName = "Secret",
+            providerUrl = "http://localhost:8089",
+            version = 1,
+        ),
+        selectedChallengeUuid = "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0",
+        challengeFeedback = mapOf(
+            "RNB84NQZPCM3MZWF9D5FFMSYYN07J2NAT5N8Q0DBHHT7R3GJ4AA0" to ChallengeFeedback.IncorrectAnswer,
+            "ZA6T35B8XAR0DNKS5H100GK8PDPTA7Q8ST2FPQSYAZ4QRAA9XKK0" to ChallengeFeedback.Solved,
+        ),
+        coreSecret = coreSecret,
+        authenticationProviders = authenticationProviders,
+        discoveryState = ReducerState.Recovery.DiscoveryState(
+            state = "finished",
+            aggregatedPolicies = listOf(
+                AggregatedPolicyMetaInfo(
+                    attributeMask = 0,
+                    policyHash = "000000000000000000000000000000000000000000000000000B28GR6691Y51HR2SAFJZFF0DCMRDZD1YQMS03A55P9NCWHQGEKW8",
+                    providers = listOf(
+                        SelectedVersionInfo.Provider(
+                            url = "https://v1.anastasis.taler.net/",
+                            version = 1,
+                        ),
+                        SelectedVersionInfo.Provider(
+                            url = "https://v1.anastasis.codeblau.de/",
+                            version = 1,
+                        ),
+                    ),
+                    secretName = "Secret",
+                ),
+            ),
+        ),
+    )
+)
diff --git a/anastasis/src/main/java/net/taler/anastasis/viewmodels/ReducerViewModel.kt b/anastasis/src/main/java/net/taler/anastasis/viewmodels/ReducerViewModel.kt
index faba94a..a1fb08c 100644
--- a/anastasis/src/main/java/net/taler/anastasis/viewmodels/ReducerViewModel.kt
+++ b/anastasis/src/main/java/net/taler/anastasis/viewmodels/ReducerViewModel.kt
@@ -137,26 +137,3 @@ class ReducerViewModel @Inject constructor(): ViewModel(), ReducerViewModelI {
         _reducerError.value = null
     }
 }
-
-class FakeReducerViewModel(
-    state: ReducerState,
-    error: TalerErrorInfo? = null,
-): ReducerViewModelI {
-    override val reducerManager = null
-    private val _reducerState = MutableStateFlow<ReducerState?>(state)
-    override val reducerState: StateFlow<ReducerState?> = _reducerState.asStateFlow()
-    private val _reducerError = MutableStateFlow(error)
-    override val reducerError: StateFlow<TalerErrorInfo?> = _reducerError.asStateFlow()
-    private val _loading = MutableStateFlow(Tasks())
-    override val tasks = _loading.asStateFlow()
-
-    override fun goBack(): Boolean = false
-
-    override fun goHome() {
-        _reducerState.value = null
-    }
-
-    override fun cleanError() {
-        _reducerError.value = null
-    }
-}
\ No newline at end of file
diff --git a/anastasis/src/main/res/values/strings.xml b/anastasis/src/main/res/values/strings.xml
index 426ee26..d53db88 100644
--- a/anastasis/src/main/res/values/strings.xml
+++ b/anastasis/src/main/res/values/strings.xml
@@ -80,6 +80,7 @@
     <string name="select_challenge_title">Select challenge</string>
     <string name="solve_challenge_title">Solve challenge</string>
     <string name="recovery_finished_title">Your secret was recovered</string>
+    <string name="recovery_providers">Manage recovery providers</string>
     <string name="challenge_solve">Solve</string>
     <string name="challenge_feedback_solved">Solved</string>
     <string name="challenge_feedback_incorrect_answer">Incorrect answer</string>