RoomList: add avatar for rooms and date formatting

app/build.gradle

@@ -69,6 +69,7 @@ dependencies {
     implementation project(":features:login")
     implementation project(":features:roomlist")
 
+    coreLibraryDesugaring "com.android.tools:desugar_jdk_libs:1.2.0"
     implementation 'io.github.raamcosta.compose-destinations:core:1.7.23-beta'
     ksp 'io.github.raamcosta.compose-destinations:ksp:1.7.23-beta'
 

features/roomlist/build.gradle.kts

@@ -12,6 +12,7 @@ dependencies {
     implementation(project(":libraries:designsystem"))
     implementation(libs.mavericks.compose)
     implementation(libs.timber)
+    implementation(libs.datetime)
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.3")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.4.0")

features/roomlist/src/main/java/io/element/android/x/features/roomlist/LastMessageFormatter.kt

@@ -0,0 +1,82 @@
+package io.element.android.x.features.roomlist
+
+import android.text.format.DateFormat
+import android.text.format.DateUtils
+import kotlinx.datetime.*
+import kotlinx.datetime.TimeZone
+import java.time.Period
+import java.time.format.DateTimeFormatter
+import java.util.*
+import kotlin.math.absoluteValue
+
+class LastMessageFormatter(
+    private val clock: Clock = Clock.System,
+    private val locale: Locale = Locale.getDefault()
+) {
+
+    private val onlyTimeFormatter: DateTimeFormatter by lazy {
+        val pattern = DateFormat.getBestDateTimePattern(locale, "HH:mm")
+        DateTimeFormatter.ofPattern(pattern)
+    }
+
+    private val dateWithMonthFormatter: DateTimeFormatter by lazy {
+        val pattern = DateFormat.getBestDateTimePattern(locale, "d MMM")
+        DateTimeFormatter.ofPattern(pattern)
+    }
+
+    private val dateWithYearFormatter: DateTimeFormatter by lazy {
+        val pattern = DateFormat.getBestDateTimePattern(locale, "dd.MM.yyyy")
+        DateTimeFormatter.ofPattern(pattern)
+    }
+
+
+    fun format(timestamp: Long?): String {
+        if (timestamp == null) return ""
+        val now: Instant = clock.now()
+        val tsInstant = Instant.fromEpochSeconds(timestamp)
+        val nowDateTime = now.toLocalDateTime(TimeZone.currentSystemDefault())
+        val tsDateTime = tsInstant.toLocalDateTime(TimeZone.currentSystemDefault())
+        val isSameDay = nowDateTime.date == tsDateTime.date
+        return when {
+            isSameDay -> {
+                onlyTimeFormatter.format(tsDateTime.toJavaLocalDateTime())
+            }
+            else -> {
+                formatDate(tsDateTime, nowDateTime)
+            }
+        }
+    }
+
+    private fun formatDate(
+        date: LocalDateTime,
+        currentDate: LocalDateTime,
+    ): String {
+        val period = Period.between(date.date.toJavaLocalDate(), currentDate.date.toJavaLocalDate())
+        return if (period.years.absoluteValue >= 1) {
+            formatDateWithYear(date)
+        } else if (period.days.absoluteValue < 2 && period.months.absoluteValue < 1) {
+            getRelativeDay(date.toInstant(TimeZone.currentSystemDefault()).toEpochMilliseconds())
+        } else {
+            formatDateWithMonth(date)
+        }
+    }
+
+    private fun formatDateWithMonth(localDateTime: LocalDateTime): String {
+        return dateWithMonthFormatter.format(localDateTime.toJavaLocalDateTime())
+    }
+
+    private fun formatDateWithYear(localDateTime: LocalDateTime): String {
+        return dateWithYearFormatter.format(localDateTime.toJavaLocalDateTime())
+    }
+
+    private fun getRelativeDay(ts: Long): String {
+        return DateUtils.getRelativeTimeSpanString(
+            ts,
+            clock.now().toEpochMilliseconds(),
+            DateUtils.DAY_IN_MILLIS,
+            DateUtils.FORMAT_SHOW_WEEKDAY
+        ).toString()
+    }
+
+
+}

features/roomlist/src/main/java/io/element/android/x/features/roomlist/RoomListActions.kt

@@ -1,6 +1,5 @@
 package io.element.android.x.features.roomlist
 
 sealed interface RoomListActions {
-    object LoadMore : RoomListActions
     object Logout : RoomListActions
 }

features/roomlist/src/main/java/io/element/android/x/features/roomlist/RoomListScreen.kt

@@ -1,11 +1,13 @@
 package io.element.android.x.features.roomlist
 
-import android.widget.Space
+import Avatar
+import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ExitToApp
 import androidx.compose.material.ripple.rememberRipple
@@ -15,9 +17,11 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 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.compose.ui.unit.sp
 import com.airbnb.mvrx.Success
@@ -25,10 +29,10 @@ import com.airbnb.mvrx.compose.collectAsState
 import com.airbnb.mvrx.compose.mavericksViewModel
 import io.element.android.x.core.data.LogCompositions
 import io.element.android.x.designsystem.LightGrey
-import io.element.android.x.designsystem.components.Avatar
 import io.element.android.x.features.roomlist.model.MatrixUser
+import io.element.android.x.features.roomlist.model.RoomListRoomSummary
+import io.element.android.x.features.roomlist.model.RoomListViewState
 import io.element.android.x.matrix.core.RoomId
-import io.element.android.x.matrix.room.RoomSummary
 
 @Composable
 fun RoomListScreen(
@@ -54,7 +58,7 @@ fun RoomListScreen(
 
 @Composable
 fun RoomListContent(
-    roomSummaries: List<RoomSummary>,
+    roomSummaries: List<RoomListRoomSummary>,
     matrixUser: MatrixUser,
     onRoomClicked: (RoomId) -> Unit,
     onLogoutClicked: () -> Unit,
@@ -69,12 +73,11 @@ fun RoomListContent(
                 onLogoutClicked = onLogoutClicked
             )
             LazyColumn {
-                items(roomSummaries, key = { it.identifier() }) { room ->
+                items(roomSummaries, key = { it.id }) { room ->
                     RoomItem(room = room) {
                         onRoomClicked(it)
                     }
                 }
-
             }
         }
     }
@@ -90,7 +93,7 @@ fun RoomListTopBar(matrixUser: MatrixUser, onLogoutClicked: () -> Unit) {
                 modifier = Modifier.fillMaxWidth(),
                 verticalAlignment = Alignment.CenterVertically
             ) {
-                Avatar(data = matrixUser.avatarData)
+                Avatar(data = matrixUser.avatarData, size = 32.dp)
                 Spacer(modifier = Modifier.width(8.dp))
                 Text("${matrixUser.username}")
             }
@@ -108,18 +111,17 @@ fun RoomListTopBar(matrixUser: MatrixUser, onLogoutClicked: () -> Unit) {
 @Composable
 private fun RoomItem(
     modifier: Modifier = Modifier,
-    room: RoomSummary,
+    room: RoomListRoomSummary,
     onClick: (RoomId) -> Unit
 ) {
-    if (room !is RoomSummary.Filled) {
+    if (room.isPlaceholder) {
         return
     }
-    val details = room.details
     Column(
         modifier = modifier
             .fillMaxWidth()
             .clickable(
-                onClick = { onClick(room.details.roomId) },
+                onClick = { onClick(room.roomId) },
                 indication = rememberRipple(),
                 interactionSource = remember { MutableInteractionSource() }
             ),
@@ -128,12 +130,9 @@ private fun RoomItem(
             modifier = Modifier
                 .fillMaxWidth()
                 .padding(horizontal = 16.dp),
+            verticalAlignment = Alignment.CenterVertically,
         ) {
-            Box(modifier = Modifier
+            Avatar(data = room.avatarData)
-                    .align(Alignment.CenterVertically)
-            ) {
-                Avatar(data = null)
-            }
             Column(
                 modifier = Modifier
                     .padding(12.dp)
@@ -143,31 +142,56 @@ private fun RoomItem(
                     fontSize = 16.sp,
                     fontWeight = FontWeight.Bold,
                     color = Color.Black,
-                    text = details.name,
+                    text = room.name,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis
                 )
                 Text(
-                    text = details.lastMessage?.toString().orEmpty(),
+                    text = room.lastMessage?.toString().orEmpty(),
                     color = LightGrey,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis
                 )
             }
             Column(
-                Modifier
+                Modifier.padding(horizontal = 8.dp)
-                    .padding(horizontal = 8.dp)
-                    .align(Alignment.CenterVertically)
             ) {
                 Text(
                     fontSize = 12.sp,
-                    text = "14:18",
+                    text = room.timestamp ?: "",
-                    color = LightGrey
+                    color = LightGrey,
+                )
+                Spacer(modifier.size(4.dp))
+                val unreadIndicatorColor = if(room.hasUnread) Color.Black else Color.Transparent
+                Box(
+                    modifier = Modifier
+                        .size(12.dp)
+                        .clip(CircleShape)
+                        .background(unreadIndicatorColor)
+                        .align(Alignment.End),
                 )
-                Spacer(Modifier.size(20.dp))
             }
         }
     }
-
+}
-
+
+@Preview
+@Composable
+private fun PreviewableRoomListContent() {
+    val roomSummaries = listOf(
+        RoomListRoomSummary(
+            name = "Room",
+            hasUnread = true,
+            timestamp = "14:18",
+            lastMessage = "A message",
+            avatarData = null,
+            id = "roomId"
+        )
+    )
+    RoomListContent(
+        roomSummaries = roomSummaries,
+        matrixUser = MatrixUser("User#1"),
+        onRoomClicked = {},
+        onLogoutClicked = {}
+    )
 }

features/roomlist/src/main/java/io/element/android/x/features/roomlist/RoomListViewModel.kt

@@ -4,9 +4,16 @@ import com.airbnb.mvrx.Fail
 import com.airbnb.mvrx.Loading
 import com.airbnb.mvrx.MavericksViewModel
 import com.airbnb.mvrx.Success
+import io.element.android.x.core.data.parallelMap
 import io.element.android.x.features.roomlist.model.MatrixUser
+import io.element.android.x.features.roomlist.model.RoomListRoomSummary
+import io.element.android.x.features.roomlist.model.RoomListViewState
 import io.element.android.x.matrix.MatrixClient
 import io.element.android.x.matrix.MatrixInstance
+import io.element.android.x.matrix.room.RoomSummary
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
 import org.matrix.rustcomponents.sdk.mediaSourceFromUrl
 
@@ -14,6 +21,7 @@ class RoomListViewModel(initialState: RoomListViewState) :
     MavericksViewModel<RoomListViewState>(initialState) {
 
     private val matrix = MatrixInstance.getInstance()
+    private val lastMessageFormatter = LastMessageFormatter()
 
     init {
         handleInit()
@@ -21,12 +29,11 @@ class RoomListViewModel(initialState: RoomListViewState) :
 
     fun handle(action: RoomListActions) {
         when (action) {
-            RoomListActions.LoadMore -> TODO()
             RoomListActions.Logout -> handleLogout()
         }
     }
 
-    fun logout(){
+    fun logout() {
         handleLogout()
     }
 
@@ -36,26 +43,63 @@ class RoomListViewModel(initialState: RoomListViewState) :
             client.startSync()
             val userAvatarUrl = client.loadUserAvatarURLString().getOrNull()
             val userDisplayName = client.loadUserDisplayName().getOrNull()
-            val avatarData = userAvatarUrl?.let {
+            val avatarData = loadAvatarData(client, userAvatarUrl)
-                mediaSourceFromUrl(it)
-            }?.let {
-                client.loadMediaContentForSource(it)
-            }
             setState {
                 copy(
                     user = MatrixUser(
                         username = userDisplayName,
                         avatarUrl = userAvatarUrl,
-                        avatarData = avatarData?.getOrNull()
+                        avatarData = avatarData,
                     )
                 )
             }
-            client.roomSummaryDataSource().roomSummaries().execute {
+            client.roomSummaryDataSource().roomSummaries()
-                copy(rooms = it)
+                .map { roomSummaries ->
+                    mapRoomSummaries(client, roomSummaries)
+                }
+                .flowOn(Dispatchers.Default)
+                .execute {
+                    copy(rooms = it)
+                }
+        }
+    }
+
+    private suspend fun mapRoomSummaries(
+        client: MatrixClient,
+        roomSummaries: List<RoomSummary>
+    ): List<RoomListRoomSummary> {
+        return roomSummaries.parallelMap { roomSummary ->
+            when (roomSummary) {
+                is RoomSummary.Empty -> RoomListRoomSummary(
+                    id = roomSummary.identifier,
+                    isPlaceholder = true
+                )
+                is RoomSummary.Filled -> {
+                    val avatarData = loadAvatarData(client, roomSummary.details.avatarURLString)
+                    RoomListRoomSummary(
+                        id = roomSummary.identifier(),
+                        name = roomSummary.details.name,
+                        hasUnread = roomSummary.details.unreadNotificationCount > 0,
+                        timestamp = lastMessageFormatter.format(roomSummary.details.lastMessageTimestamp),
+                        lastMessage = roomSummary.details.lastMessage,
+                        avatarData = avatarData,
+                    )
+                }
             }
         }
     }
 
+    private suspend fun loadAvatarData(client: MatrixClient, url: String?, size: Long = 48): ByteArray? {
+        val mediaContent = url?.let {
+            val mediaSource = mediaSourceFromUrl(it)
+            client.loadMediaThumbnailForSource(mediaSource, size, size)
+        }
+        return mediaContent?.fold(
+            { it },
+            { null }
+        )
+    }
+
     private fun handleLogout() {
         viewModelScope.launch {
             setState { copy(logoutAction = Loading()) }

features/roomlist/src/main/java/io/element/android/x/features/roomlist/model/MatrixUser.kt

@@ -6,5 +6,5 @@ import androidx.compose.runtime.Stable
 data class MatrixUser(
     val username: String? = null,
     val avatarUrl: String? = null,
-    val avatarData: List<UByte>? = null,
+    val avatarData: ByteArray? = null,
 )

features/roomlist/src/main/java/io/element/android/x/features/roomlist/model/RoomListRoomSummary.kt

@@ -0,0 +1,14 @@
+package io.element.android.x.features.roomlist.model
+
+import io.element.android.x.matrix.core.RoomId
+
+data class RoomListRoomSummary(
+    val id: String,
+    val roomId: RoomId = RoomId(id),
+    val name: String = "",
+    val hasUnread: Boolean = false,
+    val timestamp: String? = null,
+    val lastMessage: CharSequence? = null,
+    val avatarData: ByteArray? = null,
+    val isPlaceholder: Boolean = false,
+)

features/roomlist/src/main/java/io/element/android/x/features/roomlist/model/RoomListViewState.kt

@@ -1,4 +1,4 @@
-package io.element.android.x.features.roomlist
+package io.element.android.x.features.roomlist.model
 
 import com.airbnb.mvrx.Async
 import com.airbnb.mvrx.MavericksState
@@ -8,7 +8,7 @@ import io.element.android.x.matrix.room.RoomSummary
 
 data class RoomListViewState(
     val user: MatrixUser = MatrixUser(),
-    val rooms: Async<List<RoomSummary>> = Uninitialized,
+    val rooms: Async<List<RoomListRoomSummary>> = Uninitialized,
     val canLoadMore: Boolean = false,
     val logoutAction: Async<Unit> = Uninitialized,
 ) : MavericksState

gradle/libs.versions.toml

@@ -33,6 +33,7 @@ test_orchestrator = "1.4.1"
 mavericks = "3.0.1"
 timber = "5.0.1"
 coil = "2.2.1"
+datetime = "0.4.0"
 
 [libraries]
 # Project
@@ -70,6 +71,8 @@ test_orchestrator = { module = "androidx.test:orchestrator", version.ref = "test
 
 mavericks_compose = { module = "com.airbnb.android:mavericks-compose", version.ref = "mavericks" }
 timber = { module = "com.jakewharton.timber:timber", version.ref = "timber" }
-coil_compose =  { module = "io.coil-kt:coil-compose", version.ref = "coil" }
+coil_compose = { module = "io.coil-kt:coil-compose", version.ref = "coil" }
+datetime = { module = "org.jetbrains.kotlinx:kotlinx-datetime", version.ref = "datetime" }
+
 [bundles]
 

libraries/core/src/main/java/io/element/android/x/core/data/pmap.kt

@@ -0,0 +1,9 @@
+package io.element.android.x.core.data
+
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.coroutineScope
+
+suspend fun <A, B> Iterable<A>.parallelMap(f: suspend (A) -> B): List<B> = coroutineScope {
+    map { async { f(it) } }.awaitAll()
+}

libraries/designsystem/src/main/java/io/element/android/x/designsystem/components/Avatar.kt

@@ -1,37 +1,31 @@
-package io.element.android.x.designsystem.components
-
 import android.util.Log
-import androidx.compose.foundation.Image
-import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.shape.CircleShape
-import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
-import coil.compose.rememberAsyncImagePainter
+import coil.compose.AsyncImage
 
 /**
  * TODO fallback Avatar
  */
 @Composable
 fun Avatar(
-    data: List<UByte>?,
+    data: ByteArray?,
     size: Dp = 48.dp,
 ) {
-    Image(
+    AsyncImage(
-        painter = rememberAsyncImagePainter(
+        model = data,
-            model = data?.toUByteArray()?.toByteArray(),
+        onError = {
-            onError = {
+            Log.e("TAG", "Error $it\n${it.result}", it.result.throwable)
-                Log.e("TAG", "Error $it\n${it.result}", it.result.throwable)
+        },
-            }),
         contentDescription = null,
         modifier = Modifier
             .size(size)
             .clip(CircleShape)
-            .border(1.5.dp, MaterialTheme.colorScheme.primary, CircleShape)
     )
 }
 

libraries/matrix/src/main/java/io/element/android/x/matrix/MatrixClient.kt

@@ -96,10 +96,21 @@ class MatrixClient internal constructor(
         }
     }
 
-    suspend fun loadMediaContentForSource(source: MediaSource): Result<List<UByte>> =
+    suspend fun loadMediaContentForSource(source: MediaSource): Result<ByteArray> =
         withContext(dispatchers.io) {
             runCatching {
-                client.getMediaContent(source)
+                client.getMediaContent(source).toUByteArray().toByteArray()
+            }
+        }
+
+    suspend fun loadMediaThumbnailForSource(
+        source: MediaSource,
+        width: Long,
+        height: Long
+    ): Result<ByteArray> =
+        withContext(dispatchers.io) {
+            runCatching {
+                client.getMediaThumbnail(source, width.toULong(), height.toULong()).toUByteArray().toByteArray()
             }
         }
 

libraries/matrix/src/main/java/io/element/android/x/matrix/room/RoomSummary.kt

@@ -23,5 +23,5 @@ data class RoomSummaryDetails(
     val avatarURLString: String?,
     val lastMessage: CharSequence?,
     val lastMessageTimestamp: Long?,
-    val unreadNotificationCount: UInt,
+    val unreadNotificationCount: Int,
 )

libraries/matrix/src/main/java/io/element/android/x/matrix/room/RoomSummaryDataSource.kt

@@ -126,7 +126,7 @@ internal class RustRoomSummaryDataSource(
                 name = room.name() ?: identifier,
                 isDirect = room.isDm() ?: false,
                 avatarURLString = room.fullRoom()?.avatarUrl(),
-                unreadNotificationCount = room.unreadNotifications().notificationCount(),
+                unreadNotificationCount = room.unreadNotifications().notificationCount().toInt(),
                 lastMessage = latestRoomMessage?.body,
                 lastMessageTimestamp = latestRoomMessage?.originServerTs
             )

plugins/src/main/java/extension/CommonExtension.kt

@@ -7,15 +7,16 @@ import composeVersion
 import org.gradle.api.artifacts.VersionCatalog
 
 fun CommonExtension<*, *, *, *>.androidConfig() {
-
-
-
     defaultConfig {
         compileSdk = Versions.compileSdk
         minSdk = Versions.minSdk
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }
 
+    compileOptions {
+        isCoreLibraryDesugaringEnabled = true
+    }
+
     testOptions {
         unitTests.isReturnDefaultValues = true
     }