39 changed files with 583 additions and 1482 deletions
--- a/.idea/codeStyles/Project.xml
+++ b/.idea/codeStyles/Project.xml
@ -1,7 +1,6 @@
 <component name="ProjectCodeStyleConfiguration">
  <code_scheme name="Project" version="173">
    <JetCodeStyleSettings>
-      <option name="ALLOW_TRAILING_COMMA" value="true" />
      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
    </JetCodeStyleSettings>
    <codeStyleSettings language="XML">
--- a/README.md
+++ b/README.md
@ -1,7 +1,5 @@
 # Building

-Clone the repo, then open the project in Android Studio.
-
 Make sure the required Android NDK platforms are installed, and the environment
 variable `ANDROID_NDK_TOOLCHAIN_DIR` is configured correctly.

@ -10,9 +8,3 @@ On Windows, this might be a path such as the following (NDK "Side by side" SDK t
 ```
 %LOCALAPPDATA%\Android\Sdk\ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64\bin
 ```
-
-Set your API ID and hash in the rust code.
-
-Change the Cargo.toml to point to a local grammers source tree and remove the version argument.
-
-Sync gradle files, and Android Studio's "build" and "run" should Just Work.
--- a/app/build.gradle
+++ b/app/build.gradle
@ -10,7 +10,7 @@ android {

    defaultConfig {
        applicationId "dev.lonami.talaria"
-        minSdk 26
+        minSdk 21
        targetSdk 33
        versionCode 1
        versionName "0.1.0"
@ -57,7 +57,6 @@ dependencies {
    implementation "androidx.compose.ui:ui-tooling-preview:$compose_ui_version"
    implementation 'androidx.compose.material:material:1.2.1'
    implementation "androidx.navigation:navigation-compose:2.5.2"
-    implementation "net.java.dev.jna:jna:5.12.0@aar"
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
@ -69,8 +68,8 @@ dependencies {
 // See https://github.com/mozilla/rust-android-gradle for other targets and required toolchains
 cargo {
    module = "../native"
-    libname = "uniffi_talaria"
-    targets = ["arm64"]
+    libname = "talaria"
+    targets = ["arm64", "arm", "x86"]
    profile = 'release'
 }

@ -79,14 +78,3 @@ tasks.whenTaskAdded { task ->
        task.dependsOn 'cargoBuild'
    }
 }
-
-// See https://mozilla.github.io/uniffi-rs/kotlin/gradle.html for more details on this snippet
-android.applicationVariants.all { variant ->
-    def t = tasks.register("generate${variant.name.capitalize()}UniFFIBindings", Exec) {
-        workingDir "${project.projectDir}"
-        commandLine 'uniffi-bindgen', 'generate', '../native/src/talaria.udl', '--language', 'kotlin', '--no-format', '--out-dir', "${buildDir}/generated/source/uniffi/${variant.name}/java"
-    }
-    variant.javaCompileProvider.get().dependsOn(t)
-    def sourceSet = variant.sourceSets.find { it.name == variant.name }
-    sourceSet.java.srcDir new File(buildDir, "generated/source/uniffi/${variant.name}/java")
-}
--- a/app/src/main/java/dev/lonami/talaria/MainActivity.kt
+++ b/app/src/main/java/dev/lonami/talaria/MainActivity.kt
@ -7,15 +7,15 @@ import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Surface
 import androidx.compose.ui.Modifier
+import dev.lonami.talaria.bindings.Native
 import dev.lonami.talaria.ui.theme.TalariaTheme
-import uniffi.talaria.initClient
-import uniffi.talaria.initDatabase

 class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            TalariaTheme {
+                // A surface container using the 'background' color from the theme
                Surface(
                    modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colors.background
@ -25,7 +25,6 @@ class MainActivity : ComponentActivity() {
            }
        }

-        initDatabase(getDatabasePath("talaria.db").path)
-        initClient()
+        Native.initClient()
    }
 }
--- a/app/src/main/java/dev/lonami/talaria/TalariaApp.kt
+++ b/app/src/main/java/dev/lonami/talaria/TalariaApp.kt
@ -1,29 +1,20 @@
 package dev.lonami.talaria

 import androidx.annotation.StringRes
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.padding
 import androidx.compose.material.*
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.*
+import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.vector.ImageVector
-import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
-import dev.lonami.talaria.ui.screens.ChatScreen
-import dev.lonami.talaria.ui.screens.DialogScreen
-import dev.lonami.talaria.ui.screens.LoginScreen
-import dev.lonami.talaria.ui.state.ChatViewModel
-import kotlinx.coroutines.launch
-import uniffi.talaria.needLogin
+import dev.lonami.talaria.ui.ChatScreen
+import dev.lonami.talaria.ui.DialogScreen
+import dev.lonami.talaria.ui.LoginScreen

 enum class TalariaScreen(@StringRes val title: Int) {
    Login(title = R.string.app_name),
@ -31,96 +22,9 @@ enum class TalariaScreen(@StringRes val title: Int) {
    Chat(title = R.string.chat),
 }

-enum class DrawerAction {
-    SelectAccount,
-    AddAccount,
-    SavedMessages,
-    Contacts,
-    NewChat,
-    Settings,
-    Help,
-}
-
@Composable
-fun DrawerAction(
-    icon: ImageVector,
-    text: String,
-    onClick: () -> Unit,
-    modifier: Modifier = Modifier,
-) {
-    Row(
-        modifier = modifier
-            .clickable(onClick = onClick)
-            .fillMaxWidth()
-            .padding(0.dp, 8.dp)
-    ) {
-        Icon(imageVector = icon, contentDescription = null)
-        Spacer(modifier = Modifier.width(8.dp))
-        Text(text)
-    }
-}
-
-@Composable
-fun Drawer(onSelect: (DrawerAction) -> Unit, modifier: Modifier = Modifier) {
-    Column(
-        modifier = modifier
-            .fillMaxSize()
-            .padding(24.dp, 48.dp)
-    ) {
-        Image(
-            painter = painterResource(R.drawable.ic_launcher_foreground),
-            contentDescription = "App Icon"
-        )
-        DrawerAction(
-            icon = Icons.Filled.AccountBox,
-            text = "Main Account",
-            onClick = { onSelect(DrawerAction.SelectAccount) }
-        )
-        DrawerAction(
-            icon = Icons.Filled.Add,
-            text = "Add Account",
-            onClick = { onSelect(DrawerAction.AddAccount) }
-        )
-        Divider()
-        DrawerAction(
-            icon = Icons.Filled.Star,
-            text = "Saved Messages",
-            onClick = { onSelect(DrawerAction.SavedMessages) }
-        )
-        DrawerAction(
-            icon = Icons.Filled.Call,
-            text = "Contacts",
-            onClick = { onSelect(DrawerAction.Contacts) }
-        )
-        DrawerAction(
-            icon = Icons.Filled.Create,
-            text = "New Chat",
-            onClick = { onSelect(DrawerAction.NewChat) }
-        )
-        Divider()
-        DrawerAction(
-            icon = Icons.Filled.Settings,
-            text = "Settings",
-            onClick = { onSelect(DrawerAction.Settings) }
-        )
-        DrawerAction(
-            icon = Icons.Filled.Info,
-            text = "Help",
-            onClick = { onSelect(DrawerAction.Help) }
-        )
-    }
-}
-
-@Composable
-fun TalariaAppBar(
-    currentScreen: TalariaScreen,
-    canNavigateBack: Boolean,
-    navigateUp: () -> Unit,
-    openDrawer: () -> Unit,
-    modifier: Modifier = Modifier,
-) {
+fun TalariaAppBar(currentScreen: TalariaScreen, canNavigateBack: Boolean, navigateUp: () -> Unit) {
    TopAppBar(
-        modifier = modifier,
        title = { Text(stringResource(currentScreen.title)) },
        navigationIcon = {
            if (canNavigateBack) {
@ -130,104 +34,48 @@ fun TalariaAppBar(
                        contentDescription = stringResource(R.string.back_button)
                    )
                }
-            } else {
-                IconButton(onClick = openDrawer) {
-                    Icon(
-                        imageVector = Icons.Filled.Menu,
-                        contentDescription = stringResource(androidx.compose.ui.R.string.navigation_menu)
-                    )
-                }
            }
        }
    )
 }

@Composable
-fun TalariaApp(modifier: Modifier = Modifier) {
+fun TalariaApp() {
    val navController = rememberNavController()
    val backStackEntry by navController.currentBackStackEntryAsState()
    val currentScreen =
        TalariaScreen.valueOf(backStackEntry?.destination?.route ?: TalariaScreen.Login.name)

-    val loggedIn by remember { mutableStateOf(!needLogin()) }
    var selectedDialog by remember { mutableStateOf("") }

-    val drawerState = rememberDrawerState(DrawerValue.Closed)
-    val scope = rememberCoroutineScope()
-    val toggleDrawer = { open: Boolean ->
-        scope.launch {
-            if (open) {
-                drawerState.open()
-            } else {
-                drawerState.close()
-            }
-        }
-    }
-
-    val chatViewModel = remember { ChatViewModel() }
-
    Scaffold(
-        modifier = modifier,
        topBar = {
            TalariaAppBar(
                currentScreen,
                canNavigateBack = navController.previousBackStackEntry != null,
-                navigateUp = { navController.navigateUp() },
-                openDrawer = { toggleDrawer(drawerState.isClosed) }
+                navigateUp = { navController.navigateUp() }
            )
        }
    ) { innerPadding ->
-        ModalDrawer(
-            drawerState = drawerState,
-            gesturesEnabled = drawerState.isOpen,
-            drawerContent = {
-                Drawer(onSelect = {})
-            }) {
-
-            NavHost(
-                navController = navController,
-                startDestination = if (loggedIn) {
-                    TalariaScreen.Login.name
-                } else {
-                    TalariaScreen.Dialog.name
-                },
-                Modifier.padding(innerPadding)
-            ) {
-                composable(route = TalariaScreen.Dialog.name) {
-                    DialogScreen(onDialogSelected = {
-                        selectedDialog = it
-                        chatViewModel.loadMessages(it)
-                        navController.navigate(TalariaScreen.Chat.name)
-                    })
-                }
-                composable(route = TalariaScreen.Chat.name) {
-                    ChatScreen(selectedDialog, chatViewModel = chatViewModel)
-                }
-                composable(route = TalariaScreen.Login.name) {
-                    LoginScreen(onConfirmOtp = {
-                        navController.navigate(TalariaScreen.Dialog.name)
-                    })
-                }
+        NavHost(
+            navController = navController,
+            startDestination = TalariaScreen.Login.name,
+            Modifier.padding(innerPadding)
+        ) {
+            composable(route = TalariaScreen.Dialog.name) {
+                DialogScreen(onDialogSelected = {
+                    selectedDialog = it
+                    navController.navigate(TalariaScreen.Chat.name)
+                })
+            }
+            composable(route = TalariaScreen.Chat.name) {
+                ChatScreen(selectedDialog)
+            }
+            composable(route = TalariaScreen.Login.name) {
+                LoginScreen(onConfirmOtp = {
+                    navController.navigate(TalariaScreen.Dialog.name)
+                })
            }
        }
    }
 }
-
-@Preview
-@Composable
-fun TopBarPreview() {
-    TalariaAppBar(
-        currentScreen = TalariaScreen.Dialog,
-        canNavigateBack = false,
-        navigateUp = {},
-        openDrawer = {},
-    )
-}
-
-@Preview
-@Composable
-fun NavDrawerPreview() {
-    Surface {
-        Drawer(onSelect = {})
-    }
-}
--- a/app/src/main/java/dev/lonami/talaria/bindings/Native.kt
+++ b/app/src/main/java/dev/lonami/talaria/bindings/Native.kt
@ -0,0 +1,18 @@
+package dev.lonami.talaria.bindings
+
+object Native {
+    init {
+        System.loadLibrary("talaria")
+    }
+
+    external fun initClient()
+    external fun needLogin(): Boolean
+    external fun requestLoginCode(phone: String): Long
+    external fun signIn(tokenPtr: Long, code: String)
+    external fun getDialogs(): Long
+    external fun dialogCount(dialogsPtr: Long): Int
+    external fun dialogPacked(dialogsPtr: Long, index: Int): String
+    external fun dialogTitle(dialogsPtr: Long, index: Int): String
+    external fun freeDialogs(dialogsPtr: Long)
+    external fun sendMessage(packed: String, text: String)
+}
--- a/app/src/main/java/dev/lonami/talaria/data/DialogRepository.kt
+++ b/app/src/main/java/dev/lonami/talaria/data/DialogRepository.kt
@ -1,56 +0,0 @@
-package dev.lonami.talaria.data
-
-import uniffi.talaria.Dialog
-import uniffi.talaria.MessageAck
-import uniffi.talaria.MessagePreview
-import uniffi.talaria.getDialogs
-import java.time.Instant
-
-interface DialogRepository {
-    fun loadDialogs(): List<Dialog>
-}
-
-class NativeDialogRepository : DialogRepository {
-    override fun loadDialogs(): List<Dialog> {
-        return getDialogs()
-    }
-}
-
-class MockDialogRepository : DialogRepository {
-    override fun loadDialogs(): List<Dialog> {
-        val dialogs = mutableListOf<Dialog>()
-        for (i in 0 until 10) {
-            dialogs.add(
-                Dialog(
-                    id = "$i",
-                    title = "Sample Dialog $i",
-                    lastMessage = if (i % 4 == 3) {
-                        null
-                    } else {
-                        MessagePreview(
-                            sender = if (i % 2 == 0) {
-                                "Sender A"
-                            } else {
-                                "Sender B"
-                            },
-                            text = if (i % 3 == 2) {
-                                "Very Long Sample Message $i, with a Lot of Text, which makes it hard to Preview"
-                            } else {
-                                "Sample Message $i"
-                            },
-                            date = Instant.now(),
-                            ack = when (i % 3) {
-                                0 -> MessageAck.RECEIVED
-                                1 -> MessageAck.SENT
-                                2 -> MessageAck.SEEN
-                                else -> throw RuntimeException()
-                            }
-                        )
-                    },
-                    pinned = i < 4
-                )
-            )
-        }
-        return dialogs
-    }
-}
--- a/app/src/main/java/dev/lonami/talaria/data/DialogSource.kt
+++ b/app/src/main/java/dev/lonami/talaria/data/DialogSource.kt
@ -0,0 +1,25 @@
+package dev.lonami.talaria.data
+
+import dev.lonami.talaria.bindings.Native
+import dev.lonami.talaria.model.Dialog
+
+object DialogSource {
+    fun loadDialogs(): List<Dialog> {
+        val dialogs = mutableListOf<Dialog>()
+
+        val dialogPtr = Native.getDialogs()
+        val dialogCount = Native.dialogCount(dialogPtr)
+        for (i in 0 until dialogCount) {
+            dialogs.add(
+                Dialog(
+                    Native.dialogTitle(dialogPtr, i),
+                    Native.dialogPacked(dialogPtr, i),
+                    false
+                )
+            )
+        }
+        Native.freeDialogs(dialogPtr)
+
+        return dialogs
+    }
+}
--- a/app/src/main/java/dev/lonami/talaria/data/MessageRepository.kt
+++ b/app/src/main/java/dev/lonami/talaria/data/MessageRepository.kt
@ -1,46 +0,0 @@
-package dev.lonami.talaria.data
-
-import uniffi.talaria.Message
-import uniffi.talaria.getMessages
-import java.time.Instant
-
-interface MessageRepository {
-    fun loadMessages(chat: String): List<Message>
-    fun sendMessage(chat: String, message: String): Message
-}
-
-class NativeMessageRepository : MessageRepository {
-    override fun loadMessages(chat: String): List<Message> {
-        return getMessages(chat)
-    }
-
-    override fun sendMessage(chat: String, message: String): Message {
-        return uniffi.talaria.sendMessage(chat, message)
-    }
-}
-
-class MockMessageRepository(private var msgCounter: Int = 50) : MessageRepository {
-    override fun loadMessages(chat: String): List<Message> {
-        return (0 until 50).map {
-            Message(
-                id = it,
-                sender = "Alice",
-                text = "Testing",
-                date = Instant.now(),
-                editDate = null,
-                formatting = listOf(),
-            )
-        }.toList()
-    }
-
-    override fun sendMessage(chat: String, message: String): Message {
-        return Message(
-            id = msgCounter++,
-            sender = "You",
-            text = message,
-            date = Instant.now(),
-            editDate = null,
-            formatting = listOf(),
-        )
-    }
-}
--- a/app/src/main/java/dev/lonami/talaria/data/MessageSource.kt
+++ b/app/src/main/java/dev/lonami/talaria/data/MessageSource.kt
@ -0,0 +1,11 @@
+package dev.lonami.talaria.data
+
+import dev.lonami.talaria.model.Message
+
+object MessageSource {
+    fun loadMessages(): List<Message> {
+        return generateSequence {
+            Message("Alice", "Testing")
+        }.take(50).toList()
+    }
+}
--- a/app/src/main/java/dev/lonami/talaria/model/Dialog.kt
+++ b/app/src/main/java/dev/lonami/talaria/model/Dialog.kt
@ -0,0 +1,3 @@
+package dev.lonami.talaria.model
+
+data class Dialog(val title: String, val lastMessage: String, val pinned: Boolean)
--- a/app/src/main/java/dev/lonami/talaria/model/Message.kt
+++ b/app/src/main/java/dev/lonami/talaria/model/Message.kt
@ -0,0 +1,3 @@
+package dev.lonami.talaria.model
+
+data class Message(val sender: String, val text: String)
--- a/app/src/main/java/dev/lonami/talaria/ui/ChatScreen.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/ChatScreen.kt
@ -0,0 +1,110 @@
+package dev.lonami.talaria.ui
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.Button
+import androidx.compose.material.Card
+import androidx.compose.material.Text
+import androidx.compose.material.TextField
+import androidx.compose.runtime.*
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import dev.lonami.talaria.R
+import dev.lonami.talaria.model.Message
+import dev.lonami.talaria.ui.theme.TalariaTheme
+import kotlinx.coroutines.launch
+
+@Composable
+fun MessageCard(message: Message) {
+    Card(
+        elevation = 4.dp,
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(8.dp)
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(8.dp)
+        ) {
+            Text(message.sender, fontWeight = FontWeight.Bold)
+            Text(message.text)
+        }
+    }
+}
+
+@Composable
+fun MessageList(messages: List<Message>, modifier: Modifier, listState: LazyListState) {
+    LazyColumn(modifier, state = listState) {
+        items(messages.size) { MessageCard(messages[it]) }
+    }
+}
+
+@Composable
+fun MessageInputField(
+    messageText: String,
+    onMessageChanged: (String) -> Unit,
+    onSendMessage: () -> Unit
+) {
+    Row {
+        TextField(
+            messageText,
+            placeholder = { Text(stringResource(R.string.write_message)) },
+            keyboardOptions = KeyboardOptions(
+                imeAction = ImeAction.Send
+            ),
+            keyboardActions = KeyboardActions(
+                onDone = { onSendMessage() }
+            ),
+            modifier = Modifier.weight(1.0f),
+            onValueChange = onMessageChanged
+        )
+        Button(
+            onClick = onSendMessage
+        ) {
+            Text(stringResource(R.string.send_message))
+        }
+    }
+}
+
+@Composable
+fun ChatScreen(selectedDialog: String, chatViewModel: ChatViewModel = viewModel()) {
+    val chatUiState by chatViewModel.uiState.collectAsState()
+    var messageText by remember { mutableStateOf("") }
+    val messageListState = rememberLazyListState()
+    val coroutineScope = rememberCoroutineScope()
+
+    Column(modifier = Modifier.fillMaxSize()) {
+        MessageList(
+            chatUiState.messages,
+            modifier = Modifier.weight(1.0f),
+            listState = messageListState
+        )
+        MessageInputField(messageText, onMessageChanged = {
+            messageText = it
+        }, onSendMessage = {
+            chatViewModel.sendMessage(selectedDialog, messageText)
+            messageText = ""
+            coroutineScope.launch {
+                messageListState.animateScrollToItem(chatUiState.messages.size - 1)
+            }
+        })
+    }
+}
+
+@Preview
+@Composable
+fun ChatPreview() {
+    TalariaTheme {
+        ChatScreen("")
+    }
+}
--- a/app/src/main/java/dev/lonami/talaria/ui/state/ChatUiState.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/state/ChatUiState.kt
@ -1,5 +1,5 @@
-package dev.lonami.talaria.ui.state
+package dev.lonami.talaria.ui

-import uniffi.talaria.Message
+import dev.lonami.talaria.model.Message

 data class ChatUiState(val messages: MutableList<Message> = mutableListOf())
--- a/app/src/main/java/dev/lonami/talaria/ui/ChatViewModel.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/ChatViewModel.kt
@ -0,0 +1,31 @@
+package dev.lonami.talaria.ui
+
+import androidx.lifecycle.ViewModel
+import dev.lonami.talaria.bindings.Native
+import dev.lonami.talaria.data.MessageSource
+import dev.lonami.talaria.model.Message
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
+
+class ChatViewModel : ViewModel() {
+    private val _uiState = MutableStateFlow(ChatUiState())
+    val uiState: StateFlow<ChatUiState> = _uiState.asStateFlow()
+
+    private fun loadMessages() {
+        _uiState.value = ChatUiState(MessageSource.loadMessages().toMutableList())
+    }
+
+    fun sendMessage(dialog: String, message: String) {
+        Native.sendMessage(dialog, message)
+        _uiState.update { state ->
+            state.messages.add(Message("You", message))
+            state
+        }
+    }
+
+    init {
+        loadMessages()
+    }
+}
--- a/app/src/main/java/dev/lonami/talaria/ui/DialogScreen.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/DialogScreen.kt
@ -0,0 +1,75 @@
+package dev.lonami.talaria.ui
+
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material.Card
+import androidx.compose.material.Switch
+import androidx.compose.material.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewmodel.compose.viewModel
+import dev.lonami.talaria.R
+import dev.lonami.talaria.model.Dialog
+import dev.lonami.talaria.ui.theme.TalariaTheme
+
+@Composable
+fun DialogCard(dialog: Dialog, onDialogSelected: () -> Unit) {
+    Card(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(8.dp, 16.dp)
+            .clickable(onClick = onDialogSelected)
+    ) {
+        Row {
+            Image(
+                painter = painterResource(R.drawable.ic_launcher_foreground),
+                contentDescription = stringResource(R.string.profile_photo),
+            )
+            Column(modifier = Modifier.weight(1.0f)) {
+                Text(dialog.title, fontWeight = FontWeight.Bold)
+                Text(dialog.lastMessage)
+            }
+            Switch(dialog.pinned, enabled = false, onCheckedChange = null)
+        }
+    }
+}
+
+@Composable
+fun DialogList(dialogs: List<Dialog>, onDialogSelected: (String) -> Unit) {
+    LazyColumn {
+        items(dialogs.size) {
+            DialogCard(dialogs[it], onDialogSelected = {
+                onDialogSelected(dialogs[it].lastMessage)
+            })
+        }
+    }
+}
+
+@Composable
+fun DialogScreen(
+    onDialogSelected: (String) -> Unit,
+    dialogViewModel: DialogViewModel = viewModel()
+) {
+    val dialogUiState by dialogViewModel.uiState.collectAsState()
+    DialogList(dialogUiState.dialogs, onDialogSelected = onDialogSelected)
+}
+
+@Preview
+@Composable
+fun DialogPreview() {
+    TalariaTheme {
+        DialogScreen(onDialogSelected = { })
+    }
+}
--- a/app/src/main/java/dev/lonami/talaria/ui/DialogUiState.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/DialogUiState.kt
@ -0,0 +1,5 @@
+package dev.lonami.talaria.ui
+
+import dev.lonami.talaria.model.Dialog
+
+data class DialogUiState(val dialogs: List<Dialog> = listOf())
--- a/app/src/main/java/dev/lonami/talaria/ui/state/DialogViewModel.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/state/DialogViewModel.kt
@ -1,19 +1,17 @@
-package dev.lonami.talaria.ui.state
+package dev.lonami.talaria.ui

 import androidx.lifecycle.ViewModel
-import dev.lonami.talaria.data.DialogRepository
-import dev.lonami.talaria.data.NativeDialogRepository
+import dev.lonami.talaria.data.DialogSource
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow

-class DialogViewModel(private val repository: DialogRepository = NativeDialogRepository()) :
-    ViewModel() {
+class DialogViewModel : ViewModel() {
    private val _uiState = MutableStateFlow(DialogUiState())
    val uiState: StateFlow<DialogUiState> = _uiState.asStateFlow()

    private fun loadDialogs() {
-        _uiState.value = DialogUiState(repository.loadDialogs())
+        _uiState.value = DialogUiState(DialogSource.loadDialogs())
    }

    init {
--- a/app/src/main/java/dev/lonami/talaria/ui/screens/LoginScreen.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/screens/LoginScreen.kt
@ -1,4 +1,4 @@
-package dev.lonami.talaria.ui.screens
+package dev.lonami.talaria.ui

 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.text.KeyboardActions
@ -18,8 +18,8 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import dev.lonami.talaria.R
+import dev.lonami.talaria.bindings.Native
 import dev.lonami.talaria.ui.theme.TalariaTheme
-import uniffi.talaria.LoginProcedure

 enum class LoginStage {
    ASK_PHONE,
@ -30,85 +30,71 @@ fun isPhoneValid(phone: String): Boolean = phone.trim('+', ' ').isNotEmpty()
 fun isLoginCodeValid(code: String): Boolean = code.trim().count { it.isDigit() } == 5

@Composable
-fun PhoneInput(
-    phone: String,
-    onPhoneChanged: (String) -> Unit,
-    onSendCode: () -> Unit,
-    modifier: Modifier = Modifier,
-) {
+fun PhoneInput(phone: String, onPhoneChanged: (String) -> Unit, onSendCode: () -> Unit) {
    val focusManager = LocalFocusManager.current

-    Column(modifier = modifier) {
-        Text(stringResource(R.string.enter_phone))
-        TextField(
-            phone,
-            label = { Text(stringResource(R.string.phone_international)) },
-            placeholder = { Text(stringResource(R.string.phone_example)) },
-            singleLine = true,
-            keyboardOptions = KeyboardOptions(
-                keyboardType = KeyboardType.Phone,
-                imeAction = ImeAction.Done
-            ),
-            keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() }),
-            modifier = Modifier.fillMaxWidth(),
-            onValueChange = onPhoneChanged
-        )
-        Spacer(Modifier.height(16.dp))
-        Button(
-            enabled = isPhoneValid(phone),
-            modifier = Modifier.fillMaxWidth(),
-            onClick = onSendCode
-        ) {
-            Text(stringResource(R.string.send_otp))
-        }
+    Text(stringResource(R.string.enter_phone))
+    TextField(
+        phone,
+        label = { Text(stringResource(R.string.phone_international)) },
+        placeholder = { Text(stringResource(R.string.phone_example)) },
+        singleLine = true,
+        keyboardOptions = KeyboardOptions(
+            keyboardType = KeyboardType.Phone,
+            imeAction = ImeAction.Done
+        ),
+        keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() }),
+        modifier = Modifier.fillMaxWidth(),
+        onValueChange = onPhoneChanged
+    )
+    Spacer(Modifier.height(16.dp))
+    Button(
+        enabled = isPhoneValid(phone),
+        modifier = Modifier.fillMaxWidth(),
+        onClick = onSendCode
+    ) {
+        Text(stringResource(R.string.send_otp))
    }
 }

@Composable
-fun OtpInput(
-    otp: String,
-    onOtpChanged: (String) -> Unit,
-    onConfirmOtp: () -> Unit,
-    modifier: Modifier = Modifier,
-) {
+fun OtpInput(otp: String, onOtpChanged: (String) -> Unit, onConfirmOtp: () -> Unit) {
    val focusManager = LocalFocusManager.current

-    Column(modifier = modifier) {
-        Text(stringResource(R.string.enter_otp))
-        TextField(
-            otp,
-            label = { Text(stringResource(R.string.otp)) },
-            placeholder = { Text(stringResource(R.string.otp_example)) },
-            singleLine = true,
-            keyboardOptions = KeyboardOptions(
-                keyboardType = KeyboardType.Number,
-                imeAction = ImeAction.Done
-            ),
-            keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() }),
-            modifier = Modifier.fillMaxWidth(),
-            onValueChange = onOtpChanged
-        )
-        Spacer(Modifier.height(16.dp))
-        Button(
-            enabled = isLoginCodeValid(otp),
-            modifier = Modifier.fillMaxWidth(),
-            onClick = onConfirmOtp
-        ) {
-            Text(stringResource(R.string.do_login))
-        }
+    Text(stringResource(R.string.enter_otp))
+    TextField(
+        otp,
+        label = { Text(stringResource(R.string.otp)) },
+        placeholder = { Text(stringResource(R.string.otp_example)) },
+        singleLine = true,
+        keyboardOptions = KeyboardOptions(
+            keyboardType = KeyboardType.Number,
+            imeAction = ImeAction.Done
+        ),
+        keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() }),
+        modifier = Modifier.fillMaxWidth(),
+        onValueChange = onOtpChanged
+    )
+    Spacer(Modifier.height(16.dp))
+    Button(
+        enabled = isLoginCodeValid(otp),
+        modifier = Modifier.fillMaxWidth(),
+        onClick = onConfirmOtp
+    ) {
+        Text(stringResource(R.string.do_login))
    }
 }

@Composable
-fun LoginScreen(onConfirmOtp: () -> Unit, modifier: Modifier = Modifier) {
+fun LoginScreen(onConfirmOtp: () -> Unit) {
    var stage by remember { mutableStateOf(LoginStage.ASK_PHONE) }
    var phone by remember { mutableStateOf("") }
    var otp by remember { mutableStateOf("") }

-    val loginProcedure by remember { mutableStateOf(LoginProcedure()) }
+    var tokenPtr by remember { mutableStateOf(0L) }

    Column(
-        modifier = modifier
+        modifier = Modifier
            .fillMaxSize()
            .padding(16.dp),
        verticalArrangement = Arrangement.Center
@ -127,7 +113,7 @@ fun LoginScreen(onConfirmOtp: () -> Unit, modifier: Modifier = Modifier) {
                phone,
                onPhoneChanged = { phone = it },
                onSendCode = {
-                    loginProcedure.requestLoginCode(phone)
+                    tokenPtr = Native.requestLoginCode(phone)
                    stage = LoginStage.ASK_CODE
                }
            )
@ -135,7 +121,7 @@ fun LoginScreen(onConfirmOtp: () -> Unit, modifier: Modifier = Modifier) {
                otp,
                onOtpChanged = { otp = it },
                onConfirmOtp = {
-                    loginProcedure.signIn(otp)
+                    Native.signIn(tokenPtr, otp)
                    onConfirmOtp()
                }
            )
--- a/app/src/main/java/dev/lonami/talaria/ui/screens/ChatScreen.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/screens/ChatScreen.kt
@ -1,181 +0,0 @@
-package dev.lonami.talaria.ui.screens
-
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.LazyListState
-import androidx.compose.foundation.lazy.rememberLazyListState
-import androidx.compose.foundation.text.ClickableText
-import androidx.compose.foundation.text.KeyboardActions
-import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.material.Button
-import androidx.compose.material.Card
-import androidx.compose.material.Text
-import androidx.compose.material.TextField
-import androidx.compose.runtime.*
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.AnnotatedString
-import androidx.compose.ui.text.SpanStyle
-import androidx.compose.ui.text.font.FontFamily
-import androidx.compose.ui.text.font.FontStyle
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.input.ImeAction
-import androidx.compose.ui.text.style.TextDecoration
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import androidx.lifecycle.viewmodel.compose.viewModel
-import dev.lonami.talaria.R
-import dev.lonami.talaria.data.MockMessageRepository
-import dev.lonami.talaria.ui.state.ChatViewModel
-import dev.lonami.talaria.ui.theme.TalariaTheme
-import kotlinx.coroutines.launch
-import uniffi.talaria.Formatting
-import uniffi.talaria.Message
-import uniffi.talaria.TextFormat
-
-@Composable
-fun FormattedText(
-    text: String,
-    formatting: List<TextFormat>,
-    onFormatClicked: (TextFormat) -> Unit,
-) {
-    val anno = AnnotatedString(text, spanStyles = formatting.map {
-        AnnotatedString.Range(SpanStyle(
-            fontWeight = when (it.format) {
-                Formatting.BOLD -> FontWeight.Bold
-                else -> FontWeight.Normal
-            },
-            fontStyle = when (it.format) {
-                Formatting.ITALIC -> FontStyle.Italic
-                else -> FontStyle.Normal
-            },
-            fontFamily = when (it.format) {
-                Formatting.CODE,
-                Formatting.PRE,
-                -> FontFamily.Monospace
-                else -> FontFamily.Default
-            },
-            textDecoration = when (it.format) {
-                Formatting.UNDERLINE -> TextDecoration.Underline
-                Formatting.STRIKE -> TextDecoration.LineThrough
-                else -> TextDecoration.None
-            },
-            color = when (it.format) {
-                Formatting.MENTION,
-                Formatting.HASH_TAG,
-                Formatting.BOT_COMMAND,
-                Formatting.URL,
-                Formatting.EMAIL,
-                Formatting.TEXT_URL,
-                Formatting.MENTION_NAME,
-                Formatting.PHONE,
-                Formatting.CASH_TAG,
-                -> Color(0xff0000ff)
-                else -> Color.Black
-            }), it.offset, it.offset + it.length)
-    })
-    ClickableText(
-        anno,
-        onClick = { offset ->
-            anno.spanStyles.indexOfFirst {
-                it.start <= offset && offset <= it.end
-            }.takeIf { it != -1 }?.also {
-                onFormatClicked(formatting[it])
-            }
-        }
-    )
-}
-
-@Composable
-fun MessageCard(message: Message, modifier: Modifier = Modifier) {
-    Card(
-        elevation = 4.dp,
-        modifier = modifier
-            .fillMaxWidth()
-            .padding(8.dp)
-    ) {
-        Column(
-            modifier = Modifier
-                .fillMaxWidth()
-                .padding(8.dp)
-        ) {
-            Text(message.sender, fontWeight = FontWeight.Bold)
-            FormattedText(message.text, message.formatting, onFormatClicked = {})
-        }
-    }
-}
-
-@Composable
-fun MessageList(messages: List<Message>, listState: LazyListState, modifier: Modifier = Modifier) {
-    LazyColumn(modifier = modifier, state = listState) {
-        items(messages.size) { MessageCard(messages[it]) }
-    }
-}
-
-@Composable
-fun MessageInputField(
-    messageText: String,
-    onMessageChanged: (String) -> Unit,
-    onSendMessage: () -> Unit,
-    modifier: Modifier = Modifier,
-) {
-    Row(modifier = modifier) {
-        TextField(
-            messageText,
-            placeholder = { Text(stringResource(R.string.write_message)) },
-            keyboardOptions = KeyboardOptions(
-                imeAction = ImeAction.Send
-            ),
-            keyboardActions = KeyboardActions(
-                onDone = { onSendMessage() }
-            ),
-            modifier = Modifier.weight(1.0f),
-            onValueChange = onMessageChanged
-        )
-        Button(
-            onClick = onSendMessage
-        ) {
-            Text(stringResource(R.string.send_message))
-        }
-    }
-}
-
-@Composable
-fun ChatScreen(
-    selectedDialog: String,
-    modifier: Modifier = Modifier,
-    chatViewModel: ChatViewModel = viewModel(),
-) {
-    val chatUiState by chatViewModel.uiState.collectAsState()
-    var messageText by remember { mutableStateOf("") }
-    val messageListState = rememberLazyListState()
-    val coroutineScope = rememberCoroutineScope()
-
-    Column(modifier = modifier.fillMaxSize()) {
-        MessageList(
-            chatUiState.messages,
-            modifier = Modifier.weight(1.0f),
-            listState = messageListState
-        )
-        MessageInputField(messageText, onMessageChanged = {
-            messageText = it
-        }, onSendMessage = {
-            chatViewModel.sendMessage(selectedDialog, messageText)
-            messageText = ""
-            coroutineScope.launch {
-                messageListState.animateScrollToItem(chatUiState.messages.size - 1)
-            }
-        })
-    }
-}
-
-@Preview
-@Composable
-fun ChatPreview() {
-    val viewModel = remember { ChatViewModel(MockMessageRepository()).apply { loadMessages("") } }
-
-    TalariaTheme {
-        ChatScreen("", chatViewModel = viewModel)
-    }
-}
--- a/app/src/main/java/dev/lonami/talaria/ui/screens/DialogScreen.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/screens/DialogScreen.kt
@ -1,137 +0,0 @@
-package dev.lonami.talaria.ui.screens
-
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.material.Divider
-import androidx.compose.material.Icon
-import androidx.compose.material.Surface
-import androidx.compose.material.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
-import androidx.compose.runtime.getValue
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.text.style.TextOverflow
-import androidx.compose.ui.tooling.preview.Preview
-import androidx.compose.ui.unit.dp
-import androidx.lifecycle.viewmodel.compose.viewModel
-import dev.lonami.talaria.R
-import dev.lonami.talaria.data.MockDialogRepository
-import dev.lonami.talaria.ui.state.DialogViewModel
-import dev.lonami.talaria.ui.theme.TalariaTheme
-import uniffi.talaria.Dialog
-import uniffi.talaria.MessageAck
-import java.time.LocalDateTime
-import java.time.ZoneOffset
-import java.time.format.DateTimeFormatter
-import java.time.format.FormatStyle
-
-@Composable
-fun Dialog(dialog: Dialog, onDialogSelected: () -> Unit, modifier: Modifier = Modifier) {
-    Row(
-        modifier = modifier
-            .padding(4.dp)
-            .clickable(onClick = onDialogSelected)
-    ) {
-        Image(
-            painter = painterResource(R.drawable.ic_launcher_foreground),
-            contentDescription = stringResource(R.string.profile_photo),
-            contentScale = ContentScale.Fit,
-            modifier = Modifier.height(48.dp),
-        )
-        Column(modifier = Modifier.weight(1.0f)) {
-            Text(
-                dialog.title,
-                fontWeight = FontWeight.SemiBold,
-                maxLines = 1,
-                overflow = TextOverflow.Ellipsis
-            )
-            if (dialog.lastMessage != null) {
-                Text(
-                    stringResource(
-                        R.string.message_preview,
-                        dialog.lastMessage!!.sender,
-                        dialog.lastMessage!!.text
-                    ),
-                    maxLines = 1,
-                    overflow = TextOverflow.Ellipsis,
-                )
-            }
-        }
-        Column {
-            if (dialog.lastMessage != null) {
-                Row {
-                    when (dialog.lastMessage!!.ack) {
-                        MessageAck.RECEIVED -> {}
-                        MessageAck.SENT -> Icon(
-                            painterResource(R.drawable.sent),
-                            stringResource(R.string.sent)
-                        )
-                        MessageAck.SEEN -> Icon(
-                            painterResource(R.drawable.seen),
-                            stringResource(R.string.seen)
-                        )
-                    }
-                    Spacer(Modifier.width(8.dp))
-                    Text(
-                        LocalDateTime.ofInstant(dialog.lastMessage!!.date, ZoneOffset.UTC).format(
-                            DateTimeFormatter.ofLocalizedTime(
-                                FormatStyle.SHORT
-                            )
-                        ),
-                    )
-                }
-            }
-            if (dialog.pinned) {
-                Icon(
-                    painterResource(R.drawable.tack),
-                    stringResource(R.string.pinned),
-                    modifier = Modifier.align(Alignment.End)
-                )
-            }
-        }
-    }
-}
-
-@Composable
-fun DialogList(
-    dialogs: List<Dialog>,
-    onDialogSelected: (String) -> Unit,
-    modifier: Modifier = Modifier,
-) {
-    LazyColumn(modifier = modifier) {
-        items(dialogs.size) {
-            Dialog(dialogs[it], onDialogSelected = {
-                onDialogSelected(dialogs[it].id)
-            })
-            Divider(startIndent = 52.dp)
-        }
-    }
-}
-
-@Composable
-fun DialogScreen(
-    onDialogSelected: (String) -> Unit,
-    modifier: Modifier = Modifier,
-    dialogViewModel: DialogViewModel = viewModel(),
-) {
-    val dialogUiState by dialogViewModel.uiState.collectAsState()
-    Surface(modifier = modifier) {
-        DialogList(dialogUiState.dialogs, onDialogSelected = onDialogSelected)
-    }
-}
-
-@Preview
-@Composable
-fun DialogPreview() {
-    val viewModel = DialogViewModel(MockDialogRepository())
-    TalariaTheme {
-        DialogScreen(onDialogSelected = { }, dialogViewModel = viewModel)
-    }
-}
--- a/app/src/main/java/dev/lonami/talaria/ui/state/ChatViewModel.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/state/ChatViewModel.kt
@ -1,31 +0,0 @@
-package dev.lonami.talaria.ui.state
-
-import androidx.lifecycle.ViewModel
-import dev.lonami.talaria.data.MessageRepository
-import dev.lonami.talaria.data.NativeMessageRepository
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.asStateFlow
-import kotlinx.coroutines.flow.update
-
-class ChatViewModel(private val repository: MessageRepository = NativeMessageRepository()) :
-    ViewModel() {
-    private val _uiState = MutableStateFlow(ChatUiState())
-    val uiState: StateFlow<ChatUiState> = _uiState.asStateFlow()
-
-    fun loadMessages(chat: String) {
-        _uiState.update {
-            it.messages.clear()
-            it.messages.addAll(repository.loadMessages(chat))
-            it
-        }
-    }
-
-    fun sendMessage(dialog: String, message: String) {
-        val sent = repository.sendMessage(dialog, message)
-        _uiState.update {
-            it.messages.add(sent)
-            it
-        }
-    }
-}
--- a/app/src/main/java/dev/lonami/talaria/ui/state/DialogUiState.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/state/DialogUiState.kt
@ -1,5 +0,0 @@
-package dev.lonami.talaria.ui.state
-
-import uniffi.talaria.Dialog
-
-data class DialogUiState(val dialogs: List<Dialog> = listOf())
--- a/app/src/main/java/dev/lonami/talaria/ui/theme/Shape.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/theme/Shape.kt
@ -5,7 +5,7 @@ import androidx.compose.material.Shapes
 import androidx.compose.ui.unit.dp

 val Shapes = Shapes(
-    small = RoundedCornerShape(4.dp),
-    medium = RoundedCornerShape(4.dp),
-    large = RoundedCornerShape(0.dp)
-)
+        small = RoundedCornerShape(4.dp),
+        medium = RoundedCornerShape(4.dp),
+        large = RoundedCornerShape(0.dp)
+)
--- a/app/src/main/java/dev/lonami/talaria/ui/theme/Theme.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/theme/Theme.kt
@ -7,15 +7,24 @@ import androidx.compose.material.lightColors
 import androidx.compose.runtime.Composable

 private val DarkColorPalette = darkColors(
-    primary = Purple200,
-    primaryVariant = Purple700,
-    secondary = Teal200
+        primary = Purple200,
+        primaryVariant = Purple700,
+        secondary = Teal200
 )

 private val LightColorPalette = lightColors(
-    primary = Purple500,
-    primaryVariant = Purple700,
-    secondary = Teal200
+        primary = Purple500,
+        primaryVariant = Purple700,
+        secondary = Teal200
+
+        /* Other default colors to override
+    background = Color.White,
+    surface = Color.White,
+    onPrimary = Color.White,
+    onSecondary = Color.Black,
+    onBackground = Color.Black,
+    onSurface = Color.Black,
+    */
 )

@Composable
@ -27,9 +36,9 @@ fun TalariaTheme(darkTheme: Boolean = isSystemInDarkTheme(), content: @Composabl
    }

    MaterialTheme(
-        colors = colors,
-        typography = Typography,
-        shapes = Shapes,
-        content = content
+            colors = colors,
+            typography = Typography,
+            shapes = Shapes,
+            content = content
    )
-}
+}
--- a/app/src/main/java/dev/lonami/talaria/ui/theme/Type.kt
+++ b/app/src/main/java/dev/lonami/talaria/ui/theme/Type.kt
@ -6,10 +6,23 @@ import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.sp

+// Set of Material typography styles to start with
 val Typography = Typography(
-    body1 = TextStyle(
+        body1 = TextStyle(
+                fontFamily = FontFamily.Default,
+                fontWeight = FontWeight.Normal,
+                fontSize = 16.sp
+        )
+        /* Other default text styles to override
+    button = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.W500,
+        fontSize = 14.sp
+    ),
+    caption = TextStyle(
        fontFamily = FontFamily.Default,
        fontWeight = FontWeight.Normal,
-        fontSize = 16.sp
+        fontSize = 12.sp
    )
-)
+    */
+)
--- a/app/src/main/res/drawable/seen.xml
+++ b/app/src/main/res/drawable/seen.xml
@ -1,12 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:pathData="m11,16 l2,2 9,-9C23,8 22,7 21,8l-8,8 -1,-1z"
-        android:fillColor="@color/black" />
-    <path
-        android:pathData="m3,14 l4,4 9,-9C17,8 16,7 15,8L7,16 4,13C3,12 2,13 3,14Z"
-        android:fillColor="@color/black" />
-</vector>
--- a/app/src/main/res/drawable/sent.xml
+++ b/app/src/main/res/drawable/sent.xml
@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:pathData="m6,14 l4,4 9,-9C20,8 19,7 18,8L10,16 7,13C6,12 5,13 6,14Z"
-        android:fillColor="@color/black" />
-</vector>
--- a/app/src/main/res/drawable/tack.xml
+++ b/app/src/main/res/drawable/tack.xml
@ -1,9 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:width="24dp"
-    android:height="24dp"
-    android:viewportWidth="24"
-    android:viewportHeight="24">
-    <path
-        android:pathData="m14,4 l-5,5 -6,1 5,5 -5,7 7,-5 5,5 1,-6 5,-5c1,-1 1,-1 0,-2L16,4C15,3 15,3 14,4Z"
-        android:fillColor="@color/black" />
-</vector>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -15,8 +15,4 @@
    <string name="back_button">Back</string>
    <string name="dialog">All chats</string>
    <string name="chat">Messages</string>
-    <string name="pinned">Pinned</string>
-    <string name="sent">Sent</string>
-    <string name="seen">Seen</string>
-    <string name="message_preview"><em>%s</em>: %s</string>
 </resources>
--- a/build.gradle
+++ b/build.gradle
@ -4,10 +4,8 @@ buildscript {
    }
 }// Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    // uniffi-recommended Gradle script fails with Android plugin 7.3.1.
-    // See https://github.com/mozilla/uniffi-rs/issues/1386 for details.
-    id 'com.android.application' version '7.2.2' apply false
-    id 'com.android.library' version '7.2.2' apply false
+    id 'com.android.application' version '7.3.0' apply false
+    id 'com.android.library' version '7.3.0' apply false
    id 'org.jetbrains.kotlin.android' version '1.6.10' apply false
    id "org.mozilla.rust-android-gradle.rust-android" version "0.9.3"
 }
--- a/0
+++ b/0
--- a/native/Cargo.toml
+++ b/native/Cargo.toml
@ -4,24 +4,19 @@ version = "0.1.0"
 edition = "2021"

 [lib]
-name = "uniffi_talaria"
+name = "talaria"
 crate-type = ["cdylib"]

 [dependencies]
 jni = { version = "0.10.2", default-features = false }
-uniffi = "0.21.0"
 # v0.4 of grammers-* is currently unreleased; clone the project and use path dependencies
-grammers-client = { version = "0.4.1" }
+grammers-client = { version = "0.4.0" }
 grammers-tl-types = { version = "0.4.0" }
-grammers-session = { version = "0.4.1" }
+grammers-session = { version = "0.4.0" }
 tokio = { version = "1.5.0", features = ["full"] }
 log = "0.4.14"
 android_logger = "0.11.1"
 once_cell = "1.15.0"
-sqlite = "0.27.0"
-
-[build-dependencies]
-uniffi_build = "0.21.0"

 [profile.release]
 lto = true
--- a/native/build.rs
+++ b/native/build.rs
@ -1,3 +0,0 @@
-fn main() {
-    uniffi_build::generate_scaffolding("src/talaria.udl").unwrap();
-}
--- a/native/src/db/mod.rs
+++ b/native/src/db/mod.rs
@ -1,172 +0,0 @@
-mod model;
-mod utils;
-
-use model::Session;
-use sqlite::{Connection, Error, State};
-use std::net::IpAddr;
-use utils::{fetch_many, fetch_one};
-
-fn init_schema(conn: &Connection) -> Result<(), Error> {
-    let version = match fetch_one(&conn, "SELECT version FROM version LIMIT 1", |stmt| {
-        stmt.read::<i64>(0)
-    }) {
-        Ok(Some(version)) => version,
-        _ => 0,
-    };
-
-    if version == 0 {
-        conn.execute(
-            "
-            BEGIN TRANSACTION;
-            CREATE TABLE version (version INTEGER NOT NULL);
-            CREATE TABLE session (
-                user_id INTEGER,
-                dc_id INTEGER,
-                bot INTEGER,
-                pts INTEGER,
-                qts INTEGER,
-                seq INTEGER,
-                date INTEGER
-            );
-            CREATE TABLE channel (
-                session_id INTEGER NOT NULL REFERENCES session (rowid),
-                id INTEGER NOT NULL,
-                hash INTEGER NOT NULL,
-                pts INTEGER NOT NULL
-            );
-            CREATE TABLE datacenter (
-                session_id INTEGER NOT NULL REFERENCES session (rowid),
-                id INTEGER NOT NULL,
-                ipv4 TEXT,
-                ipv6 TEXT,
-                port INTEGER NOT NULL,
-                auth BLOB,
-                CONSTRAINT SingleIp CHECK(
-                    (ipv4 IS NOT NULL AND ipv6 IS NULL) OR
-                    (ipv6 IS NOT NULL AND ipv4 IS NULL))
-            );
-            INSERT INTO version VALUES (1);
-            COMMIT;
-            ",
-        )?;
-    }
-
-    Ok(())
-}
-
-pub fn init_connection(db_path: &str) -> Result<Connection, Error> {
-    let conn = sqlite::open(db_path)?;
-    init_schema(&conn)?;
-    Ok(conn)
-}
-
-pub fn get_sessions(conn: &Connection) -> Result<Vec<Session>, Error> {
-    let query = "
-        SELECT s.rowid, s.*, COALESCE(d.ipv4, d.ipv6), d.port, d.auth
-        FROM session s
-        LEFT JOIN datacenter d ON d.session_id = s.rowid AND d.id = s.dc_id
-    ";
-    fetch_many(conn, query, |stmt| {
-        Ok(Session {
-            id: stmt.read(0)?,
-            user_id: stmt.read(1)?,
-            dc_id: stmt.read::<Option<i64>>(2)?.map(|x| x as _),
-            bot: stmt.read::<Option<i64>>(3)?.map(|x| x != 0),
-            pts: stmt.read::<Option<i64>>(4)?.map(|x| x as _),
-            qts: stmt.read::<Option<i64>>(5)?.map(|x| x as _),
-            seq: stmt.read::<Option<i64>>(6)?.map(|x| x as _),
-            date: stmt.read::<Option<i64>>(7)?.map(|x| x as _),
-            dc_addr: stmt.read::<Option<String>>(8)?,
-            dc_port: stmt.read::<Option<i64>>(9)?.map(|x| x as _),
-            dc_auth: stmt
-                .read::<Option<Vec<u8>>>(10)?
-                .map(|x| x.try_into().unwrap()),
-        })
-    })
-}
-
-pub fn create_session(conn: &Connection) -> Result<Session, Error> {
-    conn.execute("INSERT INTO session DEFAULT VALUES;")?;
-    let id = fetch_one(conn, "SELECT LAST_INSERT_ROWID()", |stmt| {
-        stmt.read::<i64>(0)
-    })?
-    .unwrap();
-    Ok(Session {
-        id,
-        user_id: None,
-        dc_id: None,
-        bot: None,
-        pts: None,
-        qts: None,
-        seq: None,
-        date: None,
-        dc_addr: None,
-        dc_port: None,
-        dc_auth: None,
-    })
-}
-
-pub fn update_session(conn: &Connection, session: &Session) -> Result<(), Error> {
-    let mut stmt = conn
-        .prepare(
-            "
-            UPDATE session SET
-                user_id = ?,
-                dc_id = ?,
-                bot = ?,
-                pts = ?,
-                qts = ?,
-                seq = ?,
-                date = ?
-            WHERE rowid = ?
-            ",
-        )?
-        .bind(1, session.user_id)?
-        .bind(2, session.dc_id.map(|x| x as i64))?
-        .bind(3, session.bot.map(|x| x as i64))?
-        .bind(4, session.pts.map(|x| x as i64))?
-        .bind(5, session.qts.map(|x| x as i64))?
-        .bind(6, session.seq.map(|x| x as i64))?
-        .bind(7, session.date.map(|x| x as i64))?
-        .bind(8, session.id)?;
-    while let State::Row = stmt.next()? {}
-
-    match (
-        session.dc_id,
-        session.dc_addr.as_ref(),
-        session.dc_port,
-        session.dc_auth,
-    ) {
-        (Some(id), Some(addr), Some(port), Some(auth)) => {
-            let (ipv4, ipv6) = match addr.parse().unwrap() {
-                IpAddr::V4(ipv4) => (Some(ipv4.to_string()), None),
-                IpAddr::V6(ipv6) => (None, Some(ipv6.to_string())),
-            };
-
-            let mut stmt = conn
-                .prepare(
-                    "
-                    DELETE FROM datacenter WHERE session_id = ? AND id = ?
-                    ",
-                )?
-                .bind(1, session.id)?
-                .bind(2, id as i64)?;
-
-            while let State::Row = stmt.next()? {}
-
-            let mut stmt = conn
-                .prepare("INSERT INTO datacenter VALUES (?, ?, ?, ?, ?, ?)")?
-                .bind(1, session.id)?
-                .bind(2, id as i64)?
-                .bind(3, ipv4.as_deref())?
-                .bind(4, ipv6.as_deref())?
-                .bind(5, port as i64)?
-                .bind(6, auth.as_ref())?;
-
-            while let State::Row = stmt.next()? {}
-        }
-        _ => {}
-    }
-
-    Ok(())
-}
--- a/native/src/db/model.rs
+++ b/native/src/db/model.rs
@ -1,14 +0,0 @@
-#[derive(Debug)]
-pub struct Session {
-    pub id: i64,
-    pub user_id: Option<i64>,
-    pub dc_id: Option<i32>,
-    pub bot: Option<bool>,
-    pub pts: Option<i32>,
-    pub qts: Option<i32>,
-    pub seq: Option<i32>,
-    pub date: Option<i32>,
-    pub dc_addr: Option<String>,
-    pub dc_port: Option<u16>,
-    pub dc_auth: Option<[u8; 256]>,
-}
--- a/native/src/db/utils.rs
+++ b/native/src/db/utils.rs
@ -1,27 +0,0 @@
-use sqlite::{Connection, Error, State, Statement};
-
-pub fn fetch_one<T, F: FnOnce(&Statement) -> Result<T, Error>>(
-    conn: &Connection,
-    query: &str,
-    adaptor: F,
-) -> Result<Option<T>, Error> {
-    let mut stmt = conn.prepare(query)?;
-    if let State::Row = stmt.next()? {
-        adaptor(&stmt).map(Some)
-    } else {
-        Ok(None)
-    }
-}
-
-pub fn fetch_many<T, F: FnMut(&Statement) -> Result<T, Error>>(
-    conn: &Connection,
-    query: &str,
-    mut adaptor: F,
-) -> Result<Vec<T>, Error> {
-    let mut result = Vec::new();
-    let mut stmt = conn.prepare(query)?;
-    while let State::Row = stmt.next()? {
-        result.push(adaptor(&stmt)?);
-    }
-    Ok(result)
-}
--- a/native/src/lib.rs
+++ b/native/src/lib.rs
@ -1,139 +1,30 @@
 #![cfg(target_os = "android")]
 #![allow(non_snake_case)]

-mod db;
+use std::ffi::{CStr, CString};
+use std::future::Future;

-use grammers_client::types::{LoginToken, Message as OgMessage};
-use grammers_client::{Client, Config, InitParams};
-use grammers_session::{PackedChat, Session, UpdateState};
-use grammers_tl_types as tl;
+use grammers_client::{Client, Config};
+use grammers_client::types::{Dialog, LoginToken};
+use grammers_session::{PackedChat, Session};
+use jni::JNIEnv;
+use jni::objects::{JObject, JString};
+use jni::sys::{jboolean, jint, jlong, jstring};
 use log;
 use log::{error, info, Level};
 use once_cell::sync::OnceCell;
-use std::collections::HashMap;
-use std::fmt;
-use std::future::Future;
-use std::net::SocketAddr;
-use std::net::{Ipv4Addr, Ipv6Addr};
-use std::sync::Mutex;
-use std::time::SystemTime;
 use tokio::runtime;
 use tokio::runtime::Runtime;

-include!(concat!(env!("OUT_DIR"), "/talaria.uniffi.rs"));
-
 const LOG_MIN_LEVEL: Level = Level::Trace;
 const LOG_TAG: &str = ".native.talari";
-const API_ID: i32 = {
-    let mut index = 0;
-    let mut value = 0;
-    let api_id = env!("TALARIA_API_ID");
-    let bytes = api_id.as_bytes();
-    while index < bytes.len() {
-        match bytes[index] {
-            b @ b'0'..=b'9' => value = value * 10 + (b - b'0') as i32,
-            _ => panic!("non-digit character found in API ID"),
-        }
-        index += 1
-    }
-    value
-};
-const API_HASH: &str = env!("TALARIA_API_HASH");
-const SERVER_ADDR: &str = env!("TALARIA_SERVER_ADDR");
+const API_ID: i32 = 0;
+const API_HASH: &str = "";
+
+type Result<T> = std::result::Result<T, Box<dyn std::error::Error>>;

 static RUNTIME: OnceCell<Runtime> = OnceCell::new();
 static CLIENT: OnceCell<Client> = OnceCell::new();
-static DATABASE: Mutex<Option<sqlite::Connection>> = Mutex::new(None);
-
-#[derive(Debug, Clone, Copy)]
-pub enum NativeError {
-    Initialization,
-    Database,
-    Network,
-}
-
-impl fmt::Display for NativeError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            Self::Initialization => write!(f, "a resource could not be initialized correctly"),
-            Self::Database => write!(f, "a query to the local database failed"),
-            Self::Network => write!(f, "a network request could not complete successfully"),
-        }
-    }
-}
-
-impl std::error::Error for NativeError {}
-
-struct LoginProcedure {
-    token: Mutex<Option<LoginToken>>,
-}
-
-#[derive(Debug, Clone, Copy)]
-pub enum MessageAck {
-    Received,
-    Seen,
-    Sent,
-}
-
-#[derive(Debug, Clone, Copy)]
-pub enum Formatting {
-    Unknown,
-    Mention,
-    HashTag,
-    BotCommand,
-    Url,
-    Email,
-    Bold,
-    Italic,
-    Code,
-    Pre,
-    TextUrl,
-    MentionName,
-    Phone,
-    CashTag,
-    Underline,
-    Strike,
-    Blockquote,
-    BankCard,
-    Spoiler,
-    CustomEmoji,
-}
-
-#[derive(Debug, Clone)]
-pub struct TextFormat {
-    format: Formatting,
-    offset: i32,
-    length: i32,
-    extra: Option<String>,
-}
-
-#[derive(Debug, Clone)]
-pub struct Message {
-    id: i32,
-    sender: String,
-    text: String,
-    date: SystemTime,
-    edit_date: Option<SystemTime>,
-    formatting: Vec<TextFormat>,
-}
-
-#[derive(Debug, Clone)]
-pub struct MessagePreview {
-    sender: String,
-    text: String,
-    date: SystemTime,
-    ack: MessageAck,
-}
-
-#[derive(Debug, Clone)]
-pub struct Dialog {
-    id: String,
-    title: String,
-    last_message: Option<MessagePreview>,
-    pinned: bool,
-}
-
-type Result<T> = std::result::Result<T, NativeError>;

 fn block_on<F: Future>(future: F) -> F::Output {
    if RUNTIME.get().is_none() {
@ -150,22 +41,7 @@ fn block_on<F: Future>(future: F) -> F::Output {
    RUNTIME.get().unwrap().block_on(future)
 }

-pub fn init_database(path: String) -> Result<()> {
-    let mut guard = DATABASE.lock().unwrap();
-    if guard.is_some() {
-        info!("Database is already initialized");
-    }
-
-    match db::init_connection(&path) {
-        Ok(conn) => {
-            *guard = Some(conn);
-            Ok(())
-        }
-        Err(_) => Err(NativeError::Database),
-    }
-}
-
-pub fn init_client() -> Result<()> {
+async fn init_client() -> Result<()> {
    android_logger::init_once(
        android_logger::Config::default()
            .with_min_level(LOG_MIN_LEVEL)
@ -177,275 +53,188 @@ pub fn init_client() -> Result<()> {
        return Ok(());
    }

-    let guard = DATABASE.lock().unwrap();
-    let conn = match guard.as_ref() {
-        Some(c) => c,
-        None => {
-            error!("Database was not initialized");
-            return Err(NativeError::Initialization);
-        }
-    };
-
    info!("Connecting to Telegram...");

-    let session = Session::new();
-
-    let sessions = db::get_sessions(conn).map_err(|_| NativeError::Database)?;
-    if let Some(s) = sessions.get(0) {
-        match (s.user_id, s.dc_id, s.bot) {
-            (Some(id), Some(dc), Some(bot)) => session.set_user(id, dc, bot),
-            _ => {}
-        }
-
-        match (s.pts, s.qts, s.seq, s.date) {
-            (Some(pts), Some(qts), Some(seq), Some(date)) => session.set_state(UpdateState {
-                pts,
-                qts,
-                seq,
-                date,
-                channels: HashMap::new(),
-            }),
-            _ => {}
-        }
-
-        match (s.dc_id, s.dc_addr.as_ref(), s.dc_port, s.dc_auth) {
-            (Some(id), Some(addr), Some(port), Some(auth)) => {
-                session.insert_dc(id, SocketAddr::new(addr.parse().unwrap(), port), auth)
-            }
-            _ => {}
-        }
-    }
-
-    let client = block_on(Client::connect(Config {
-        session,
+    let client = Client::connect(Config {
+        session: Session::new(),
        api_id: API_ID,
        api_hash: API_HASH.to_string(),
-        params: InitParams {
-            server_addr: if SERVER_ADDR.is_empty() {
-                None
-            } else {
-                Some(SERVER_ADDR.parse().unwrap())
-            },
-            ..Default::default()
-        },
-    }))
-    .map_err(|_| NativeError::Network)?;
+        params: Default::default(),
+    })
+        .await?;

    info!("Connected!");

    CLIENT
        .set(client)
-        .map_err(|_| NativeError::Initialization)?;
+        .map_err(|_| "Client was already initialized")?;

    Ok(())
 }

-pub fn need_login() -> Result<bool> {
-    let client = CLIENT.get().ok_or(NativeError::Initialization)?;
-    block_on(client.is_authorized()).map_err(|_| NativeError::Network)
+async fn need_login() -> Result<bool> {
+    let client = CLIENT.get().ok_or("Client not initialized")?;
+    Ok(client.is_authorized().await?)
 }

-impl LoginProcedure {
-    fn new() -> Self {
-        Self {
-            token: Mutex::new(None),
-        }
+async fn request_login_code(phone: &str) -> Result<LoginToken> {
+    let client = CLIENT.get().ok_or("Client not initialized")?;
+    let token = client.request_login_code(&phone, API_ID, API_HASH).await?;
+    Ok(token)
+}
+
+async fn sign_in(token: LoginToken, code: &str) -> Result<()> {
+    let client = CLIENT.get().ok_or("Client not initialized")?;
+    client.sign_in(&token, &code).await?;
+    Ok(())
+}
+
+async fn get_dialogs() -> Result<Vec<Dialog>> {
+    let client = CLIENT.get().ok_or("Client not initialized")?;
+
+    let mut result = Vec::new();
+    let mut dialogs = client.iter_dialogs();
+    while let Some(dialog) = dialogs.next().await? {
+        result.push(dialog);
    }
+    Ok(result)
+}

-    fn request_login_code(&self, phone: String) -> Result<()> {
-        let client = CLIENT.get().ok_or(NativeError::Initialization)?;
-        let token = block_on(client.request_login_code(&phone, API_ID, API_HASH))
-            .map_err(|_| NativeError::Network)?;
-        *self.token.lock().unwrap() = Some(token);
-        Ok(())
-    }
+async fn send_message(chat: PackedChat, text: &str) -> Result<()> {
+    let client = CLIENT.get().ok_or("Client not initialized")?;
+    client.send_message(chat, text).await?;
+    Ok(())
+}

-    fn sign_in(&self, code: String) -> Result<()> {
-        let token = self
-            .token
-            .lock()
-            .unwrap()
-            .take()
-            .ok_or(NativeError::Initialization)?;
-        let client = CLIENT.get().ok_or(NativeError::Initialization)?;
-
-        block_on(client.sign_in(&token, &code)).map_err(|_| NativeError::Network)?;
-
-        let guard = DATABASE.lock().unwrap();
-        let conn = match guard.as_ref() {
-            Some(c) => c,
-            None => {
-                error!("Database was not initialized");
-                return Err(NativeError::Initialization);
-            }
-        };
-
-        let mut session = db::create_session(conn).map_err(|_| NativeError::Database)?;
-        let s = client.session();
-        if let Some(user) = s.get_user() {
-            session.user_id = Some(user.id);
-            session.dc_id = Some(user.dc);
-            session.bot = Some(user.bot);
-        }
-
-        if let Some(state) = s.get_state() {
-            session.pts = Some(state.pts);
-            session.qts = Some(state.qts);
-            session.seq = Some(state.seq);
-            session.date = Some(state.date);
-        }
-
-        if let Some(dc_id) = session.dc_id {
-            for dc in s.get_dcs() {
-                if dc.id == dc_id {
-                    if let Some(ipv4) = dc.ipv4 {
-                        session.dc_addr = Some(Ipv4Addr::from(ipv4.to_le_bytes()).to_string())
-                    } else if let Some(ipv6) = dc.ipv6 {
-                        session.dc_addr = Some(Ipv6Addr::from(ipv6).to_string())
-                    }
-                    session.dc_port = Some(dc.port as u16);
-                    session.dc_auth = dc.auth.map(|b| b.try_into().unwrap());
-                    break;
-                }
-            }
-        }
-
-        db::update_session(conn, &session).map_err(|_| NativeError::Database)?;
-
-        Ok(())
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_initClient(_: JNIEnv, _: JObject) {
+    match block_on(init_client()) {
+        Ok(_) => info!("Client initialized"),
+        Err(e) => error!("Failed to initialize client: {}", e),
    }
 }

-pub fn get_dialogs() -> Result<Vec<Dialog>> {
-    let client = CLIENT.get().ok_or(NativeError::Initialization)?;
-
-    block_on(async {
-        let mut result = Vec::new();
-        let mut dialogs = client.iter_dialogs();
-        while let Some(dialog) = dialogs.next().await.map_err(|_| NativeError::Network)? {
-            result.push(dialog);
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_needLogin(
+    _: JNIEnv,
+    _: JObject,
+) -> jboolean {
+    match block_on(need_login()) {
+        Ok(login) => login.into(),
+        Err(e) => {
+            error!("Failed to check if user is authorized: {}", e);
+            false.into()
        }
-        Ok(result)
-    })
-    .map(|dialogs| {
-        dialogs
-            .into_iter()
-            .map(|d| Dialog {
-                id: d.chat().pack().to_hex(),
-                title: d.chat().name().to_string(),
-                last_message: d.last_message.map(|m| MessagePreview {
-                    sender: if let Some(sender) = m.sender() {
-                        sender.name().to_string()
-                    } else {
-                        "unknown".to_string()
-                    },
-                    text: m.text().to_string(),
-                    date: m.date().into(),
-                    ack: if m.outgoing() {
-                        match &d.dialog {
-                            tl::enums::Dialog::Dialog(d) => {
-                                if m.id() <= d.read_inbox_max_id {
-                                    MessageAck::Seen
-                                } else {
-                                    MessageAck::Sent
-                                }
-                            }
-                            tl::enums::Dialog::Folder(_) => MessageAck::Received,
-                        }
-                    } else {
-                        MessageAck::Received
-                    },
-                }),
-                pinned: match d.dialog {
-                    tl::enums::Dialog::Dialog(d) => d.pinned,
-                    tl::enums::Dialog::Folder(f) => f.pinned,
-                },
-            })
-            .collect()
-    })
-}
-
-fn adapt_message(m: OgMessage) -> Message {
-    Message {
-        id: m.id(),
-        sender: if let Some(sender) = m.sender() {
-            sender.name().to_string()
-        } else {
-            "unknown".to_string()
-        },
-        text: m.text().to_string(),
-        date: m.date().into(),
-        edit_date: m.edit_date().map(|d| d.into()),
-        formatting: if let Some(entities) = m.fmt_entities() {
-            use tl::enums::MessageEntity as ME;
-
-            macro_rules! tf {
-                ($formatting:ident($entity:ident)) => {
-                    tf!($formatting($entity).extra(None))
-                };
-                ($formatting:ident($entity:ident).extra($extra:expr)) => {
-                    TextFormat {
-                        format: Formatting::$formatting,
-                        offset: $entity.offset,
-                        length: $entity.length,
-                        extra: $extra,
-                    }
-                };
-            }
-
-            entities
-                .into_iter()
-                .map(|e| match e {
-                    ME::Unknown(e) => tf!(Unknown(e)),
-                    ME::Mention(e) => tf!(Mention(e)),
-                    ME::Hashtag(e) => tf!(HashTag(e)),
-                    ME::BotCommand(e) => tf!(BotCommand(e)),
-                    ME::Url(e) => tf!(Url(e)),
-                    ME::Email(e) => tf!(Email(e)),
-                    ME::Bold(e) => tf!(Bold(e)),
-                    ME::Italic(e) => tf!(Italic(e)),
-                    ME::Code(e) => tf!(Code(e)),
-                    ME::Pre(e) => tf!(Pre(e).extra(Some(e.language.to_string()))),
-                    ME::TextUrl(e) => tf!(TextUrl(e).extra(Some(e.url.to_string()))),
-                    ME::MentionName(e) => tf!(MentionName(e).extra(Some(e.user_id.to_string()))),
-                    ME::InputMessageEntityMentionName(e) => tf!(Unknown(e)),
-                    ME::Phone(e) => tf!(Phone(e)),
-                    ME::Cashtag(e) => tf!(CashTag(e)),
-                    ME::Underline(e) => tf!(Underline(e)),
-                    ME::Strike(e) => tf!(Strike(e)),
-                    ME::Blockquote(e) => tf!(Blockquote(e)),
-                    ME::BankCard(e) => tf!(BankCard(e)),
-                    ME::Spoiler(e) => tf!(Spoiler(e)),
-                    ME::CustomEmoji(e) => {
-                        tf!(CustomEmoji(e).extra(Some(e.document_id.to_string())))
-                    }
-                })
-                .collect()
-        } else {
-            Vec::new()
-        },
    }
 }

-pub fn get_messages(packed: String) -> Result<Vec<Message>> {
-    let chat = PackedChat::from_hex(&packed).unwrap();
-    let client = CLIENT.get().ok_or(NativeError::Initialization)?;
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_requestLoginCode(
+    env: JNIEnv,
+    _: JObject,
+    phone: JString,
+) -> jlong {
+    let phone = CString::from(CStr::from_ptr(env.get_string(phone).unwrap().as_ptr()));

-    block_on(async {
-        let mut result = Vec::new();
-        let mut messages = client.iter_messages(chat);
-        while let Some(message) = messages.next().await.map_err(|_| NativeError::Network)? {
-            result.push(message);
+    match block_on(request_login_code(phone.to_str().unwrap())) {
+        Ok(token) => Box::into_raw(Box::new(token)) as jlong,
+        Err(e) => {
+            error!("Failed to request login code: {}", e);
+            0 as jlong
        }
-        Ok(result)
-    })
-    .map(|messages| messages.into_iter().map(adapt_message).collect())
+    }
 }

-pub fn send_message(packed: String, text: String) -> Result<Message> {
-    let chat = PackedChat::from_hex(&packed).unwrap();
-    let client = CLIENT.get().ok_or(NativeError::Initialization)?;
-    block_on(client.send_message(chat, text))
-        .map(adapt_message)
-        .map_err(|_| NativeError::Network)
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_signIn(
+    env: JNIEnv,
+    _: JObject,
+    token_ptr: jlong,
+    code: JString,
+) {
+    let token = *Box::from_raw(token_ptr as *mut LoginToken);
+    let code = CString::from(CStr::from_ptr(env.get_string(code).unwrap().as_ptr()));
+
+    match block_on(sign_in(token, code.to_str().unwrap())) {
+        Ok(_) => info!("Sign in success"),
+        Err(e) => error!("Failed to sign in: {}", e),
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_getDialogs(
+    _: JNIEnv,
+    _: JObject,
+) -> jlong {
+    match block_on(get_dialogs()) {
+        Ok(dialogs) => Box::into_raw(Box::new(dialogs)) as jlong,
+        Err(e) => {
+            error!("Failed to get dialogs: {}", e);
+            0 as jlong
+        }
+    }
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_dialogCount(
+    _: JNIEnv,
+    _: JObject,
+    dialogs_ptr: jlong,
+) -> jint {
+    let dialogs = Box::leak(Box::from_raw(dialogs_ptr as *mut Vec<Dialog>));
+    dialogs.len() as jint
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_dialogPacked(
+    env: JNIEnv,
+    _: JObject,
+    dialogs_ptr: jlong,
+    index: jint,
+) -> jstring {
+    let dialogs = Box::leak(Box::from_raw(dialogs_ptr as *mut Vec<Dialog>));
+
+    let packed = dialogs[index as usize].chat().pack().to_hex();
+    let output = env.new_string(packed).unwrap();
+    output.into_inner()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_dialogTitle(
+    env: JNIEnv,
+    _: JObject,
+    dialogs_ptr: jlong,
+    index: jint,
+) -> jstring {
+    let dialogs = Box::leak(Box::from_raw(dialogs_ptr as *mut Vec<Dialog>));
+
+    let title = dialogs[index as usize].chat().name();
+    let output = env.new_string(title).unwrap();
+    output.into_inner()
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_freeDialogs(
+    _: JNIEnv,
+    _: JObject,
+    dialogs_ptr: jlong,
+) {
+    let _ = Box::from_raw(dialogs_ptr as *mut Vec<Dialog>);
+}
+
+#[no_mangle]
+pub unsafe extern "C" fn Java_dev_lonami_talaria_bindings_Native_sendMessage(
+    env: JNIEnv,
+    _: JObject,
+    packed: JString,
+    text: JString,
+) {
+    let packed = CString::from(CStr::from_ptr(env.get_string(packed).unwrap().as_ptr()));
+    let text = CString::from(CStr::from_ptr(env.get_string(text).unwrap().as_ptr()));
+
+    let packed = PackedChat::from_hex(packed.to_str().unwrap()).unwrap();
+    match block_on(send_message(packed, text.to_str().unwrap())) {
+        Ok(_) => info!("Message sent"),
+        Err(e) => error!("Failed to send message: {}", e),
+    }
 }
--- a/native/src/talaria.udl
+++ b/native/src/talaria.udl
@ -1,88 +0,0 @@
-[Error]
-enum NativeError {
-  "Initialization",
-  "Database",
-  "Network",
-};
-
-enum MessageAck {
-    "Received",
-    "Seen",
-    "Sent",
-};
-
-enum Formatting {
-    "Unknown",
-    "Mention",
-    "HashTag",
-    "BotCommand",
-    "Url",
-    "Email",
-    "Bold",
-    "Italic",
-    "Code",
-    "Pre",  // language:string
-    "TextUrl",  // url:string
-    "MentionName",  // user_id:long
-    "Phone",
-    "CashTag",
-    "Underline",
-    "Strike",
-    "Blockquote",
-    "BankCard",
-    "Spoiler",
-    "CustomEmoji",  // document_id:long
-};
-
-dictionary TextFormat {
-    Formatting format;
-    i32 offset;
-    i32 length;
-    string? extra;
-};
-
-dictionary Message {
-    i32 id;
-    string sender;
-    string text;
-    timestamp date;
-    timestamp? edit_date;
-    sequence<TextFormat> formatting;
-};
-
-dictionary MessagePreview {
-    string sender;
-    string text;
-    timestamp date;
-    MessageAck ack;
-};
-
-dictionary Dialog {
-    string id;
-    string title;
-    MessagePreview? last_message;
-    boolean pinned;
-};
-
-interface LoginProcedure {
-    constructor();
-    [Throws=NativeError]
-    void request_login_code(string phone);
-    [Throws=NativeError]
-    void sign_in(string code);
-};
-
-namespace talaria {
-    [Throws=NativeError]
-    void init_database(string path);
-    [Throws=NativeError]
-    void init_client();
-    [Throws=NativeError]
-    boolean need_login();
-    [Throws=NativeError]
-    sequence<Dialog> get_dialogs();
-    [Throws=NativeError]
-    sequence<Message> get_messages(string packed);
-    [Throws=NativeError]
-    Message send_message(string packed, string text);
-};