LoginPasswordNode

2023-06-06 18:16:35 +02:00
parent 22ed3b7bfd
commit 32f953aa83
12 changed files with 636 additions and 30 deletions
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/LoginFlowNode.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/LoginFlowNode.kt
@@ -38,6 +38,7 @@ import io.element.android.features.login.impl.changeaccountprovider.form.ChangeA
 import io.element.android.features.login.impl.changeaccountprovider.item.AccountProviderItem
 import io.element.android.features.login.impl.changeserver.ChangeServerNode
 import io.element.android.features.login.impl.datasource.AccountProviderDataSource
+import io.element.android.features.login.impl.loginpassword.LoginPasswordNode
 import io.element.android.features.login.impl.oidc.CustomTabAvailabilityChecker
 import io.element.android.features.login.impl.oidc.customtab.CustomTabHandler
 import io.element.android.features.login.impl.oidc.webview.OidcNode
@@ -90,6 +91,9 @@ class LoginFlowNode @AssistedInject constructor(
        @Parcelize
        object ChangeAccountProviderForm : NavTarget

+        @Parcelize
+        object LoginPasswordForm : NavTarget
+
        // Not used anymore
        @Parcelize
        object ChangeServer : NavTarget
@@ -129,9 +133,18 @@ class LoginFlowNode @AssistedInject constructor(
                    isAccountCreation = inputs.isAccountCreation
                )
                val callback = object : AccountProviderNode.Callback {
-                    override fun onServerValidated() {
-                        // TODO
-                        TODO("Not yet implemented")
+                    override fun onOidcDetails(oidcDetails: OidcDetails) {
+                        if (customTabAvailabilityChecker.supportCustomTab()) {
+                            // In this case open a Chrome Custom tab
+                            activity?.let { customTabHandler.open(it, darkTheme, oidcDetails.url) }
+                        } else {
+                            // Fallback to WebView mode
+                            backstack.push(NavTarget.OidcView(oidcDetails))
+                        }
+                    }
+
+                    override fun onLoginPasswordNeeded() {
+                        backstack.push(NavTarget.LoginPasswordForm)
                    }

                    override fun onChangeAccountProvider() {
@@ -166,6 +179,9 @@ class LoginFlowNode @AssistedInject constructor(

                createNode<ChangeAccountProviderFormNode>(buildContext, plugins = listOf(callback))
            }
+            NavTarget.LoginPasswordForm -> {
+                createNode<LoginPasswordNode>(buildContext, plugins = listOf())
+            }
        }
    }

--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderNode.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderNode.kt
@@ -34,6 +34,7 @@ import io.element.android.libraries.architecture.NodeInputs
 import io.element.android.libraries.architecture.inputs
 import io.element.android.libraries.core.data.tryOrNull
 import io.element.android.libraries.di.AppScope
+import io.element.android.libraries.matrix.api.auth.OidcDetails

@ContributesNode(AppScope::class)
 class AccountProviderNode @AssistedInject constructor(
@@ -54,12 +55,17 @@ class AccountProviderNode @AssistedInject constructor(
    )

    interface Callback : Plugin {
-        fun onServerValidated()
+        fun onLoginPasswordNeeded()
+        fun onOidcDetails(oidcDetails: OidcDetails)
        fun onChangeAccountProvider()
    }

-    private fun onServerValidated() {
-        plugins<Callback>().forEach { it.onServerValidated() }
+    private fun onOidcDetails(data: OidcDetails) {
+        plugins<Callback>().forEach { it.onOidcDetails(data) }
+    }
+
+    private fun onLoginPasswordNeeded() {
+        plugins<Callback>().forEach { it.onLoginPasswordNeeded() }
    }

    private fun onChangeAccountProvider() {
@@ -78,7 +84,8 @@ class AccountProviderNode @AssistedInject constructor(
        AccountProviderView(
            state = state,
            modifier = modifier,
-            onChangeServerSuccess = ::onServerValidated,
+            onOidcDetails = ::onOidcDetails,
+            onLoginPasswordNeeded = ::onLoginPasswordNeeded,
            onChange = ::onChangeAccountProvider,
            onLearnMoreClicked = { openLearnMorePage(context) },
        )
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderPresenter.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderPresenter.kt
@@ -29,11 +29,13 @@ import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
 import io.element.android.features.login.impl.changeserver.ChangeServerError
 import io.element.android.features.login.impl.datasource.AccountProviderDataSource
+import io.element.android.features.login.impl.util.LoginConstants
 import io.element.android.libraries.architecture.Async
 import io.element.android.libraries.architecture.Presenter
 import io.element.android.libraries.architecture.execute
 import io.element.android.libraries.core.data.tryOrNull
 import io.element.android.libraries.matrix.api.auth.MatrixAuthenticationService
+import io.element.android.libraries.matrix.api.auth.MatrixHomeServerDetails
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
 import java.net.URL
@@ -56,22 +58,29 @@ class AccountProviderPresenter @AssistedInject constructor(
    @Composable
    override fun present(): AccountProviderState {
        val accountProvider by accountProviderDataSource.flow().collectAsState()
-
+        val currentHomeServerDetails = authenticationService.getHomeserverDetails().collectAsState().value
+        val getHomeServerDetailsAction: MutableState<Async<MatrixHomeServerDetails>> = remember {
+            if (currentHomeServerDetails != null) {
+                mutableStateOf(Async.Success(currentHomeServerDetails))
+            } else {
+                mutableStateOf(Async.Uninitialized)
+            }
+        }
        val localCoroutineScope = rememberCoroutineScope()

        val homeserver = rememberSaveable {
-            mutableStateOf(accountProvider.title /* TODO There is a mix of data and UI here, which is not nice */)
+            mutableStateOf(currentHomeServerDetails?.url ?: LoginConstants.DEFAULT_HOMESERVER_URL)
        }
-        val changeServerAction: MutableState<Async<Unit>> = remember {
+        val loginFlowAction: MutableState<Async<LoginFlow>> = remember {
            mutableStateOf(Async.Uninitialized)
        }

        fun handleEvents(event: AccountProviderEvents) {
            when (event) {
                AccountProviderEvents.Continue -> {
-                    localCoroutineScope.submit(homeserver, changeServerAction)
+                    localCoroutineScope.submit(homeserver, loginFlowAction)
                }
-                AccountProviderEvents.ClearError -> changeServerAction.value = Async.Uninitialized
+                AccountProviderEvents.ClearError -> loginFlowAction.value = Async.Uninitialized
            }
        }

@@ -79,16 +88,30 @@ class AccountProviderPresenter @AssistedInject constructor(
            homeserver = accountProvider.title,
            isMatrix = accountProvider.isMatrixOrg,
            isAccountCreation = params.isAccountCreation,
-            changeServerAction = changeServerAction.value,
+            loginFlow = loginFlowAction.value,
            eventSink = ::handleEvents
        )
    }

-    private fun CoroutineScope.submit(homeserverUrl: MutableState<String>, changeServerAction: MutableState<Async<Unit>>) = launch {
+    private fun CoroutineScope.submit(
+        homeserverUrl: MutableState<String>,
+        loginFlowAction: MutableState<Async<LoginFlow>>,
+    ) = launch {
        suspend {
            val domain = tryOrNull { URL(homeserverUrl.value) }?.host ?: homeserverUrl.value
-            authenticationService.setHomeserver(domain).getOrThrow()
            homeserverUrl.value = domain
-        }.execute(changeServerAction, errorMapping = ChangeServerError::from)
+            authenticationService.setHomeserver(domain).map {
+                authenticationService.getHomeserverDetails().value!!
+            }.map {
+                if (it.supportsOidcLogin) {
+                    // Retrieve the details right now
+                    LoginFlow.OidcFlow(authenticationService.getOidcUrl().getOrThrow())
+                } else if (it.supportsPasswordLogin) {
+                    LoginFlow.PasswordLogin
+                } else {
+                    throw IllegalStateException("Unsupported login flow")
+                }
+            }.getOrThrow()
+        }.execute(loginFlowAction, errorMapping = ChangeServerError::from)
    }
 }
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderState.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderState.kt
@@ -17,15 +17,20 @@
 package io.element.android.features.login.impl.accountprovider

 import io.element.android.libraries.architecture.Async
+import io.element.android.libraries.matrix.api.auth.OidcDetails

 // Do not use default value, so no member get forgotten in the presenters.
 data class AccountProviderState(
    val homeserver: String,
    val isMatrix: Boolean,
    val isAccountCreation: Boolean,
-    // TODO Rename
-    val changeServerAction: Async<Unit>,
+    val loginFlow: Async<LoginFlow>,
    val eventSink: (AccountProviderEvents) -> Unit
 ) {
-    val submitEnabled: Boolean get() = homeserver.isNotEmpty() && (changeServerAction is Async.Uninitialized || changeServerAction is Async.Loading)
+    val submitEnabled: Boolean get() = homeserver.isNotEmpty() && (loginFlow is Async.Uninitialized || loginFlow is Async.Loading)
+}
+
+sealed interface LoginFlow {
+    object PasswordLogin : LoginFlow
+    data class OidcFlow(val oidcDetails: OidcDetails) : LoginFlow
 }
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderStateProvider.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderStateProvider.kt
@@ -31,6 +31,6 @@ fun aAccountProviderState() = AccountProviderState(
    homeserver = "matrix.org",
    isMatrix = true,
    isAccountCreation = false,
-    changeServerAction = Async.Uninitialized,
+    loginFlow = Async.Uninitialized,
    eventSink = {}
 )
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderView.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/accountprovider/AccountProviderView.kt
@@ -31,18 +31,20 @@ import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
 import io.element.android.features.login.impl.R
 import io.element.android.features.login.impl.changeserver.ChangeServerError
-import io.element.android.features.login.impl.changeserver.ChangeServerEvents
 import io.element.android.features.login.impl.changeserver.SlidingSyncNotSupportedDialog
 import io.element.android.libraries.architecture.Async
 import io.element.android.libraries.designsystem.atomic.molecules.ButtonColumnMolecule
 import io.element.android.libraries.designsystem.atomic.molecules.IconTitleSubtitleMolecule
 import io.element.android.libraries.designsystem.atomic.pages.HeaderFooterPage
+import io.element.android.libraries.designsystem.components.async.AsyncFailure
+import io.element.android.libraries.designsystem.components.async.AsyncLoading
 import io.element.android.libraries.designsystem.components.button.ButtonWithProgress
 import io.element.android.libraries.designsystem.components.dialogs.ErrorDialog
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
 import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.designsystem.theme.components.TextButton
+import io.element.android.libraries.matrix.api.auth.OidcDetails
 import io.element.android.libraries.testtags.TestTags
 import io.element.android.libraries.testtags.testTag

@@ -50,19 +52,19 @@ import io.element.android.libraries.testtags.testTag
 fun AccountProviderView(
    state: AccountProviderState,
    modifier: Modifier = Modifier,
-    // TODO Rename
-    onChangeServerSuccess: () -> Unit = {},
+    onOidcDetails: (OidcDetails) -> Unit = {},
+    onLoginPasswordNeeded: () -> Unit = {},
    onLearnMoreClicked: () -> Unit = {},
    onChange: () -> Unit = {},
 ) {
-    val isLoading by remember(state.changeServerAction) {
+    val isLoading by remember(state.loginFlow) {
        derivedStateOf {
-            state.changeServerAction is Async.Loading
+            state.loginFlow is Async.Loading
        }
    }
    val eventSink = state.eventSink
-    val invalidHomeserverError = (state.changeServerAction as? Async.Failure)?.error as? ChangeServerError.InlineErrorMessage
-    val slidingSyncNotSupportedError = (state.changeServerAction as? Async.Failure)?.error as? ChangeServerError.SlidingSyncAlert
+    val invalidHomeserverError = (state.loginFlow as? Async.Failure)?.error as? ChangeServerError.InlineErrorMessage
+    val slidingSyncNotSupportedError = (state.loginFlow as? Async.Failure)?.error as? ChangeServerError.SlidingSyncAlert

    HeaderFooterPage(
        modifier = modifier,
@@ -112,6 +114,24 @@ fun AccountProviderView(
            }
        }
    ) {
+        when (state.loginFlow) {
+            is Async.Failure -> {
+                AsyncFailure(
+                    throwable = state.loginFlow.error,
+                    onRetry = {
+                        state.eventSink.invoke(AccountProviderEvents.Continue)
+                    }
+                )
+            }
+            is Async.Loading -> AsyncLoading()
+            is Async.Success -> {
+                when (val loginFlowState = state.loginFlow.state) {
+                    is LoginFlow.OidcFlow -> onOidcDetails(loginFlowState.oidcDetails)
+                    LoginFlow.PasswordLogin -> onLoginPasswordNeeded()
+                }
+            }
+            Async.Uninitialized -> Unit
+        }
        if (slidingSyncNotSupportedError != null) {
            SlidingSyncNotSupportedDialog(onLearnMoreClicked = {
                onLearnMoreClicked()
@@ -129,9 +149,6 @@ fun AccountProviderView(
            )
        }
    }
-    if (state.changeServerAction is Async.Success) {
-        onChangeServerSuccess()
-    }
 }

@Preview
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordEvents.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordEvents.kt
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.login.impl.loginpassword
+
+sealed interface LoginPasswordEvents {
+    data class SetLogin(val login: String) : LoginPasswordEvents
+    data class SetPassword(val password: String) : LoginPasswordEvents
+    object Submit : LoginPasswordEvents
+    object ClearError : LoginPasswordEvents
+}
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordNode.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordNode.kt
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.login.impl.loginpassword
+
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import com.bumble.appyx.core.modality.BuildContext
+import com.bumble.appyx.core.node.Node
+import com.bumble.appyx.core.plugin.Plugin
+import dagger.assisted.Assisted
+import dagger.assisted.AssistedInject
+import io.element.android.anvilannotations.ContributesNode
+import io.element.android.libraries.di.AppScope
+
+@ContributesNode(AppScope::class)
+class LoginPasswordNode @AssistedInject constructor(
+    @Assisted buildContext: BuildContext,
+    @Assisted plugins: List<Plugin>,
+    private val presenter: LoginPasswordPresenter,
+) : Node(buildContext, plugins = plugins) {
+
+    @Composable
+    override fun View(modifier: Modifier) {
+        val state = presenter.present()
+        LoginPasswordView(
+            state = state,
+            modifier = modifier,
+            onBackPressed = ::navigateUp
+        )
+    }
+}
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordPresenter.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordPresenter.kt
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.login.impl.loginpassword
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.saveable.rememberSaveable
+import io.element.android.libraries.architecture.Async
+import io.element.android.libraries.architecture.Presenter
+import io.element.android.libraries.matrix.api.auth.MatrixAuthenticationService
+import io.element.android.libraries.matrix.api.core.SessionId
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+class LoginPasswordPresenter @Inject constructor(
+    private val authenticationService: MatrixAuthenticationService,
+) : Presenter<LoginPasswordState> {
+
+    @Composable
+    override fun present(): LoginPasswordState {
+        val localCoroutineScope = rememberCoroutineScope()
+        val loginAction: MutableState<Async<SessionId>> = remember {
+            mutableStateOf(Async.Uninitialized)
+        }
+
+        val formState = rememberSaveable {
+            mutableStateOf(LoginFormState.Default)
+        }
+
+        fun handleEvents(event: LoginPasswordEvents) {
+            when (event) {
+                is LoginPasswordEvents.SetLogin -> updateFormState(formState) {
+                    copy(login = event.login)
+                }
+                is LoginPasswordEvents.SetPassword -> updateFormState(formState) {
+                    copy(password = event.password)
+                }
+                LoginPasswordEvents.Submit -> {
+                    localCoroutineScope.submit(formState.value, loginAction)
+                }
+                LoginPasswordEvents.ClearError -> loginAction.value = Async.Uninitialized
+            }
+        }
+
+        return LoginPasswordState(
+            formState = formState.value,
+            loginAction = loginAction.value,
+            eventSink = ::handleEvents
+        )
+    }
+
+    private fun CoroutineScope.submit(formState: LoginFormState, loggedInState: MutableState<Async<SessionId>>) = launch {
+        loggedInState.value = Async.Loading()
+        authenticationService.login(formState.login.trim(), formState.password)
+            .onSuccess { sessionId ->
+                loggedInState.value = Async.Success(sessionId)
+            }
+            .onFailure { failure ->
+                loggedInState.value = Async.Failure(failure)
+            }
+    }
+
+    private fun updateFormState(formState: MutableState<LoginFormState>, updateLambda: LoginFormState.() -> LoginFormState) {
+        formState.value = updateLambda(formState.value)
+    }
+}
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordState.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordState.kt
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.login.impl.loginpassword
+
+import android.os.Parcelable
+import io.element.android.libraries.architecture.Async
+import io.element.android.libraries.matrix.api.core.SessionId
+import kotlinx.parcelize.Parcelize
+
+data class LoginPasswordState(
+    val formState: LoginFormState,
+    val loginAction: Async<SessionId>,
+    val eventSink: (LoginPasswordEvents) -> Unit
+) {
+    val submitEnabled: Boolean
+        get() = loginAction !is Async.Failure &&
+            ((formState.login.isNotEmpty() && formState.password.isNotEmpty()))
+}
+
+@Parcelize
+data class LoginFormState(
+    val login: String,
+    val password: String
+) : Parcelable {
+
+    companion object {
+        val Default = LoginFormState("", "")
+    }
+}
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordStateProvider.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordStateProvider.kt
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.login.impl.loginpassword
+
+import androidx.compose.ui.tooling.preview.PreviewParameterProvider
+import io.element.android.libraries.architecture.Async
+
+open class LoginPasswordStateProvider : PreviewParameterProvider<LoginPasswordState> {
+    override val values: Sequence<LoginPasswordState>
+        get() = sequenceOf(
+            aLoginPasswordState(),
+            // Loading
+            aLoginPasswordState().copy(loginAction = Async.Loading()),
+            // Error
+            aLoginPasswordState().copy(loginAction = Async.Failure(Exception("An error occurred"))),
+        )
+}
+
+fun aLoginPasswordState() = LoginPasswordState(
+    formState = LoginFormState.Default,
+    loginAction = Async.Uninitialized,
+    eventSink = {}
+)
--- a/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordView.kt
+++ b/features/login/impl/src/main/kotlin/io/element/android/features/login/impl/loginpassword/LoginPasswordView.kt
@@ -0,0 +1,305 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.element.android.features.login.impl.loginpassword
+
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.consumeWindowInsets
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material.icons.filled.Visibility
+import androidx.compose.material.icons.filled.VisibilityOff
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.ExperimentalComposeUiApi
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.autofill.AutofillType
+import androidx.compose.ui.focus.FocusDirection
+import androidx.compose.ui.platform.LocalFocusManager
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.VisualTransformation
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.tooling.preview.PreviewParameter
+import androidx.compose.ui.unit.dp
+import io.element.android.features.login.impl.R
+import io.element.android.features.login.impl.error.loginError
+import io.element.android.libraries.architecture.Async
+import io.element.android.libraries.designsystem.ElementTextStyles
+import io.element.android.libraries.designsystem.components.button.BackButton
+import io.element.android.libraries.designsystem.components.button.ButtonWithProgress
+import io.element.android.libraries.designsystem.components.dialogs.ErrorDialog
+import io.element.android.libraries.designsystem.components.form.textFieldState
+import io.element.android.libraries.designsystem.preview.ElementPreviewDark
+import io.element.android.libraries.designsystem.preview.ElementPreviewLight
+import io.element.android.libraries.designsystem.theme.components.Icon
+import io.element.android.libraries.designsystem.theme.components.IconButton
+import io.element.android.libraries.designsystem.theme.components.Scaffold
+import io.element.android.libraries.designsystem.theme.components.Text
+import io.element.android.libraries.designsystem.theme.components.TextField
+import io.element.android.libraries.designsystem.theme.components.TopAppBar
+import io.element.android.libraries.designsystem.theme.components.autofill
+import io.element.android.libraries.designsystem.theme.components.onTabOrEnterKeyFocusNext
+import io.element.android.libraries.testtags.TestTags
+import io.element.android.libraries.testtags.testTag
+import io.element.android.libraries.ui.strings.R as StringR
+
+@OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
+@Composable
+fun LoginPasswordView(
+    state: LoginPasswordState,
+    modifier: Modifier = Modifier,
+    onBackPressed: () -> Unit,
+) {
+    val isLoading by remember(state.loginAction) {
+        derivedStateOf {
+            state.loginAction is Async.Loading
+        }
+    }
+    val focusManager = LocalFocusManager.current
+
+    fun submit() {
+        // Clear focus to prevent keyboard issues with textfields
+        focusManager.clearFocus(force = true)
+
+        state.eventSink(LoginPasswordEvents.Submit)
+    }
+
+    Scaffold(
+        topBar = {
+            TopAppBar(
+                title = {},
+                navigationIcon = { BackButton(onClick = onBackPressed) },
+            )
+        }
+    ) { padding ->
+        Box(
+            modifier = modifier
+                .fillMaxSize()
+                .imePadding()
+                .padding(padding)
+                .consumeWindowInsets(padding)
+        ) {
+            val scrollState = rememberScrollState()
+
+            Column(
+                modifier = Modifier
+                    .verticalScroll(state = scrollState)
+                    .padding(horizontal = 16.dp),
+            ) {
+                Spacer(Modifier.height(16.dp))
+                // Title
+                Text(
+                    text = stringResource(id = R.string.screen_login_title),
+                    modifier = Modifier
+                        .fillMaxWidth(),
+                    style = ElementTextStyles.Bold.title1,
+                    color = MaterialTheme.colorScheme.primary,
+                )
+                Spacer(Modifier.height(32.dp))
+                ServerDetailForm(
+                    state = state,
+                    isLoading = isLoading,
+                    submit = ::submit
+                )
+            }
+        }
+    }
+
+    if (state.loginAction is Async.Failure) {
+        LoginErrorDialog(error = state.loginAction.error, onDismiss = {
+            state.eventSink(LoginPasswordEvents.ClearError)
+        })
+    }
+}
+
+@Composable
+fun ServerDetailForm(
+    state: LoginPasswordState,
+    isLoading: Boolean,
+    submit: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    LoginForm(state = state, isLoading = isLoading, onSubmit = submit, modifier = modifier)
+
+    Spacer(Modifier.height(28.dp))
+
+    // Submit
+    ButtonWithProgress(
+        text = stringResource(R.string.screen_login_submit),
+        showProgress = isLoading,
+        onClick = submit,
+        enabled = state.submitEnabled,
+        modifier = Modifier
+            .fillMaxWidth()
+            .testTag(TestTags.loginContinue)
+    )
+    Spacer(modifier = Modifier.height(32.dp))
+}
+
+@OptIn(ExperimentalComposeUiApi::class)
+@Composable
+internal fun LoginForm(
+    state: LoginPasswordState,
+    isLoading: Boolean,
+    onSubmit: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    var loginFieldState by textFieldState(stateValue = state.formState.login)
+    var passwordFieldState by textFieldState(stateValue = state.formState.password)
+
+    val focusManager = LocalFocusManager.current
+    val eventSink = state.eventSink
+
+    Column(modifier) {
+        Text(
+            text = stringResource(R.string.screen_login_form_header),
+            modifier = Modifier.padding(start = 16.dp),
+            style = ElementTextStyles.Regular.formHeader
+        )
+
+        Spacer(modifier = Modifier.height(8.dp))
+        TextField(
+            value = loginFieldState,
+            readOnly = isLoading,
+            modifier = Modifier
+                .fillMaxWidth()
+                .onTabOrEnterKeyFocusNext(focusManager)
+                .testTag(TestTags.loginEmailUsername)
+                .autofill(autofillTypes = listOf(AutofillType.Username), onFill = {
+                    loginFieldState = it
+                    eventSink(LoginPasswordEvents.SetLogin(it))
+                }),
+            label = {
+                Text(text = stringResource(R.string.screen_login_username_hint))
+            },
+            onValueChange = {
+                loginFieldState = it
+                eventSink(LoginPasswordEvents.SetLogin(it))
+            },
+            keyboardOptions = KeyboardOptions(
+                keyboardType = KeyboardType.Email,
+                imeAction = ImeAction.Next
+            ),
+            keyboardActions = KeyboardActions(onNext = {
+                focusManager.moveFocus(FocusDirection.Down)
+            }),
+            singleLine = true,
+            maxLines = 1,
+            trailingIcon = if (loginFieldState.isNotEmpty()) {
+                {
+                    IconButton(onClick = {
+                        loginFieldState = ""
+                    }) {
+                        Icon(imageVector = Icons.Filled.Close, contentDescription = stringResource(StringR.string.action_clear))
+                    }
+                }
+            } else null,
+        )
+
+        var passwordVisible by remember { mutableStateOf(false) }
+        if (state.loginAction is Async.Loading) {
+            // Ensure password is hidden when user submits the form
+            passwordVisible = false
+        }
+        Spacer(Modifier.height(20.dp))
+        TextField(
+            value = passwordFieldState,
+            readOnly = isLoading,
+            modifier = Modifier
+                .fillMaxWidth()
+                .onTabOrEnterKeyFocusNext(focusManager)
+                .testTag(TestTags.loginPassword)
+                .autofill(autofillTypes = listOf(AutofillType.Password), onFill = {
+                    passwordFieldState = it
+                    eventSink(LoginPasswordEvents.SetPassword(it))
+                }),
+            onValueChange = {
+                passwordFieldState = it
+                eventSink(LoginPasswordEvents.SetPassword(it))
+            },
+            label = {
+                Text(text = stringResource(R.string.screen_login_password_hint))
+            },
+            visualTransformation = if (passwordVisible) VisualTransformation.None else PasswordVisualTransformation(),
+            trailingIcon = {
+                val image =
+                    if (passwordVisible) Icons.Filled.Visibility else Icons.Filled.VisibilityOff
+                val description =
+                    if (passwordVisible) stringResource(StringR.string.a11y_hide_password) else stringResource(StringR.string.a11y_show_password)
+
+                IconButton(onClick = { passwordVisible = !passwordVisible }) {
+                    Icon(imageVector = image, description)
+                }
+            },
+            keyboardOptions = KeyboardOptions(
+                keyboardType = KeyboardType.Password,
+                imeAction = ImeAction.Done,
+            ),
+            keyboardActions = KeyboardActions(
+                onDone = { onSubmit() }
+            ),
+            singleLine = true,
+            maxLines = 1,
+        )
+    }
+}
+
+@Composable
+internal fun LoginErrorDialog(error: Throwable, onDismiss: () -> Unit) {
+    ErrorDialog(
+        content = stringResource(loginError(error)),
+        onDismiss = onDismiss
+    )
+}
+
+@Preview
+@Composable
+internal fun LoginRootScreenLightPreview(@PreviewParameter(LoginPasswordStateProvider::class) state: LoginPasswordState) =
+    ElementPreviewLight { ContentToPreview(state) }
+
+@Preview
+@Composable
+internal fun LoginRootScreenDarkPreview(@PreviewParameter(LoginPasswordStateProvider::class) state: LoginPasswordState) =
+    ElementPreviewDark { ContentToPreview(state) }
+
+@Composable
+private fun ContentToPreview(state: LoginPasswordState) {
+    LoginPasswordView(
+        state = state,
+        onBackPressed = {}
+    )
+}