home: Today progress ring + live Upcoming preview

Rework the overview's 2x2 smart grid into a daily-momentum layout:

- Promote Today into a full-width hero with an M3 Expressive
  CircularWavyProgressIndicator over "x of y done" for tasks due today.
  Empty/all-done states read as a calm finished state, not a bare 0.
- Drop the white "Upcoming 0" tile (it shouted loudest while carrying the
  least) in favour of a live preview of the next few upcoming tasks, each a
  slim row with the quiet meta line and a tap-through to the task.
- Overdue + All fall back to a 2-up of the existing tonal tiles.

ListsViewModel now combines a Smart(COMPLETED) flow so the ring can count
the tasks already ticked off today (the open smart lists drop them).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/src/main/java/de/jeanlucmakiola/agendula/ui/lists/ListsScreen.kt

@@ -3,6 +3,7 @@ package de.jeanlucmakiola.agendula.ui.lists
 import androidx.compose.animation.core.animateDpAsState
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.interaction.collectIsPressedAsState
+import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -12,18 +13,24 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.heightIn
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.rounded.ListAlt
 import androidx.compose.material.icons.rounded.Add
+import androidx.compose.material.icons.rounded.ChevronRight
 import androidx.compose.material.icons.rounded.ErrorOutline
+import androidx.compose.material.icons.rounded.Flag
 import androidx.compose.material.icons.rounded.Settings
 import androidx.compose.material.icons.rounded.Today
 import androidx.compose.material.icons.rounded.Upcoming
+import androidx.compose.material3.CircularWavyProgressIndicator
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.ExperimentalMaterial3ExpressiveApi
 import androidx.compose.material3.ExtendedFloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
@@ -42,27 +49,37 @@ import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import de.jeanlucmakiola.agendula.R
+import de.jeanlucmakiola.agendula.domain.Priority
 import de.jeanlucmakiola.agendula.domain.SmartList
+import de.jeanlucmakiola.agendula.domain.Task
 import de.jeanlucmakiola.agendula.domain.TaskFilter
 import de.jeanlucmakiola.agendula.ui.common.ActionShapes
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.agendula.ui.common.ListColorChip
 import de.jeanlucmakiola.agendula.ui.common.ShapedActionButton
+import de.jeanlucmakiola.agendula.ui.common.priorityAccent
+import de.jeanlucmakiola.agendula.ui.tasklist.priorityLabel
 import de.jeanlucmakiola.floret.components.positionOf
+import de.jeanlucmakiola.floret.time.formatDateTimeCompact
+import java.time.LocalDate
+import java.time.ZoneId
 
 /**
- * Home: smart lists (Today / Overdue / Upcoming / All) as tonal cards with live
- * counts, then the user's lists grouped by account. Tapping a card or row opens
- * that task list; the FAB starts a new task.
+ * Home: a Today progress hero (wavy ring over tasks due today), an Overdue + All
+ * 2-up of tonal tiles, a live preview of the next upcoming tasks, then the user's
+ * lists grouped by account. Tapping a tile opens that smart list, an upcoming row
+ * opens that task, and the FAB starts a new task.
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun ListsScreen(
     onOpenFilter: (TaskFilter) -> Unit,
+    onOpenTask: (Long) -> Unit,
     onNewTask: () -> Unit,
     onOpenSettings: () -> Unit,
     modifier: Modifier = Modifier,
@@ -101,7 +118,7 @@ fun ListsScreen(
         when (val s = state) {
             ListsUiState.Loading -> Unit // brief; avoids a flash before first emission
             ListsUiState.Failure -> CenteredMessage(stringResource(R.string.lists_failure), inner)
-            is ListsUiState.Content -> ListsContent(s, inner, onOpenFilter)
+            is ListsUiState.Content -> ListsContent(s, inner, onOpenFilter, onOpenTask)
         }
     }
 }
@@ -111,6 +128,7 @@ private fun ListsContent(
     state: ListsUiState.Content,
     inner: PaddingValues,
     onOpenFilter: (TaskFilter) -> Unit,
+    onOpenTask: (Long) -> Unit,
 ) {
     LazyColumn(
         modifier = Modifier.fillMaxSize(),
@@ -119,7 +137,34 @@ private fun ListsContent(
             bottom = inner.calculateBottomPadding() + 96.dp,
         ),
     ) {
-        item { SmartGrid(state.smartCounts, onOpenFilter) }
+        item {
+            TodayHero(
+                done = state.todayDone,
+                total = state.todayTotal,
+                onClick = { onOpenFilter(TaskFilter.Smart(SmartList.TODAY)) },
+            )
+        }
+        // Overdue + All sit below the Today hero as a quieter 2-up; Upcoming is no
+        // longer a count tile — it becomes the live preview further down.
+        item {
+            SmartPairRow(
+                counts = state.smartCounts.filter {
+                    it.smart == SmartList.OVERDUE || it.smart == SmartList.ALL
+                },
+                onOpenFilter = onOpenFilter,
+            )
+        }
+
+        if (state.upcoming.isNotEmpty()) {
+            item { SectionHeader(stringResource(R.string.smart_upcoming)) }
+            item {
+                UpcomingPreview(
+                    tasks = state.upcoming,
+                    onOpenTask = onOpenTask,
+                    onViewAll = { onOpenFilter(TaskFilter.Smart(SmartList.UPCOMING)) },
+                )
+            }
+        }
 
         if (state.groups.isEmpty()) {
             item { CenteredMessage(stringResource(R.string.lists_empty), PaddingValues(top = 24.dp)) }
@@ -150,25 +195,186 @@ private fun ListsContent(
     }
 }
 
+/**
+ * The day's momentum: a wavy progress ring over "x of y done" for tasks due today.
+ * Tapping opens the Today list. When nothing is due today it drops the ring and
+ * reads as a calm, finished state rather than an empty 0.
+ */
+@OptIn(ExperimentalMaterial3ExpressiveApi::class)
 @Composable
-private fun SmartGrid(counts: List<SmartCount>, onOpenFilter: (TaskFilter) -> Unit) {
-    Column(
-        modifier = Modifier.padding(horizontal = 16.dp),
-        verticalArrangement = Arrangement.spacedBy(8.dp),
+private fun TodayHero(done: Int, total: Int, onClick: () -> Unit) {
+    val interaction = remember { MutableInteractionSource() }
+    val pressed by interaction.collectIsPressedAsState()
+    val corner by animateDpAsState(if (pressed) 34.dp else 22.dp, label = "todayCorner")
+    val left = total - done
+    Surface(
+        onClick = onClick,
+        shape = RoundedCornerShape(corner),
+        color = MaterialTheme.colorScheme.primaryContainer,
+        contentColor = MaterialTheme.colorScheme.onPrimaryContainer,
+        interactionSource = interaction,
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).height(140.dp),
     ) {
-        counts.chunked(2).forEach { row ->
-            Row(horizontalArrangement = Arrangement.spacedBy(8.dp)) {
-                row.forEach { smart ->
+        Row(
+            modifier = Modifier.fillMaxSize().padding(20.dp),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(16.dp),
+        ) {
+            Column(
+                modifier = Modifier.weight(1f),
+                verticalArrangement = Arrangement.spacedBy(6.dp),
+            ) {
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(8.dp),
+                ) {
+                    Icon(Icons.Rounded.Today, contentDescription = null, modifier = Modifier.size(20.dp))
+                    Text(stringResource(R.string.smart_today), style = MaterialTheme.typography.titleMedium)
+                }
+                val headline = when {
+                    total == 0 -> stringResource(R.string.home_today_empty)
+                    left == 0 -> stringResource(R.string.home_today_all_done)
+                    else -> stringResource(R.string.home_today_progress, done, total)
+                }
+                Text(headline, style = MaterialTheme.typography.headlineSmall)
+                if (total > 0 && left > 0) {
+                    Text(
+                        stringResource(R.string.home_today_remaining, left),
+                        style = MaterialTheme.typography.bodyMedium,
+                        color = MaterialTheme.colorScheme.onPrimaryContainer.copy(alpha = 0.7f),
+                    )
+                }
+            }
+            if (total > 0) {
+                Box(contentAlignment = Alignment.Center, modifier = Modifier.size(84.dp)) {
+                    CircularWavyProgressIndicator(
+                        progress = { done.toFloat() / total },
+                        modifier = Modifier.fillMaxSize(),
+                        color = MaterialTheme.colorScheme.onPrimaryContainer,
+                        trackColor = MaterialTheme.colorScheme.onPrimaryContainer.copy(alpha = 0.22f),
+                    )
+                    Text("$done/$total", style = MaterialTheme.typography.titleMedium)
+                }
+            }
+        }
+    }
+}
+
+/** Overdue + All as a 2-up row of the existing tonal tiles. */
+@Composable
+private fun SmartPairRow(counts: List<SmartCount>, onOpenFilter: (TaskFilter) -> Unit) {
+    Row(
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp).padding(top = 8.dp),
+        horizontalArrangement = Arrangement.spacedBy(8.dp),
+    ) {
+        counts.forEach { smart ->
             SmartCard(
                 count = smart,
                 modifier = Modifier.weight(1f),
                 onClick = { onOpenFilter(TaskFilter.Smart(smart.smart)) },
             )
         }
-                if (row.size == 1) Spacer(Modifier.weight(1f))
+        if (counts.size == 1) Spacer(Modifier.weight(1f))
+    }
+}
+
+/** A grouped card previewing the next few upcoming tasks, with a "view all" tail. */
+@Composable
+private fun UpcomingPreview(
+    tasks: List<Task>,
+    onOpenTask: (Long) -> Unit,
+    onViewAll: () -> Unit,
+) {
+    Surface(
+        shape = RoundedCornerShape(22.dp),
+        color = MaterialTheme.colorScheme.surfaceContainer,
+        modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp),
+    ) {
+        Column {
+            tasks.forEach { task ->
+                UpcomingRow(task = task, onClick = { onOpenTask(task.taskId) })
+            }
+            Surface(onClick = onViewAll, color = Color.Transparent, modifier = Modifier.fillMaxWidth()) {
+                Row(
+                    modifier = Modifier.fillMaxWidth().heightIn(min = 48.dp).padding(horizontal = 16.dp),
+                    verticalAlignment = Alignment.CenterVertically,
+                ) {
+                    Text(
+                        stringResource(R.string.home_upcoming_view_all),
+                        style = MaterialTheme.typography.labelLarge,
+                        color = MaterialTheme.colorScheme.primary,
+                    )
+                    Spacer(Modifier.weight(1f))
+                    Icon(
+                        Icons.Rounded.ChevronRight,
+                        contentDescription = null,
+                        tint = MaterialTheme.colorScheme.primary,
+                    )
                 }
             }
         }
+    }
+}
+
+/**
+ * One slim upcoming row: list-colour avatar, title, then a quiet meta line of the
+ * relative due date and (if set) a tinted priority flag — the same calm one-line
+ * treatment as the task list, minus the swipe machinery.
+ */
+@Composable
+private fun UpcomingRow(task: Task, onClick: () -> Unit) {
+    val dark = isSystemInDarkTheme()
+    val muted = MaterialTheme.colorScheme.onSurfaceVariant
+    val metaStyle = MaterialTheme.typography.bodySmall
+    Surface(onClick = onClick, color = Color.Transparent, modifier = Modifier.fillMaxWidth()) {
+        Row(
+            modifier = Modifier.fillMaxWidth().heightIn(min = 60.dp).padding(horizontal = 16.dp, vertical = 8.dp),
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(12.dp),
+        ) {
+            ListColorChip(task.effectiveColor)
+            Column(modifier = Modifier.weight(1f), verticalArrangement = Arrangement.spacedBy(2.dp)) {
+                Text(
+                    task.title,
+                    style = MaterialTheme.typography.bodyLarge,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                )
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(6.dp),
+                ) {
+                    upcomingDueLabel(task)?.let { Text(it, style = metaStyle, color = muted) }
+                    if (task.priority != Priority.NONE) {
+                        Text("·", style = metaStyle, color = muted)
+                        Icon(
+                            Icons.Rounded.Flag,
+                            contentDescription = null,
+                            tint = priorityAccent(task.priority, dark),
+                            modifier = Modifier.size(13.dp),
+                        )
+                        Text(priorityLabel(task.priority), style = metaStyle, color = muted)
+                    }
+                }
+            }
+        }
+    }
+}
+
+/** "Today" / "Tomorrow" for the near dates, else the compact date. */
+@Composable
+private fun upcomingDueLabel(task: Task): String? {
+    val due = task.due ?: return null
+    val zone = remember { ZoneId.systemDefault() }
+    val today = remember { LocalDate.now(zone) }
+    val dueDate = remember(due) {
+        java.time.Instant.ofEpochMilli(due.toEpochMilliseconds()).atZone(zone).toLocalDate()
+    }
+    return when (dueDate) {
+        today -> stringResource(R.string.home_due_today)
+        today.plusDays(1) -> stringResource(R.string.home_due_tomorrow)
+        else -> due.formatDateTimeCompact(task.isAllDay)
+    }
 }
 
 private data class SmartStyle(val icon: ImageVector, val labelRes: Int, val container: Color, val onContainer: Color)

app/src/main/java/de/jeanlucmakiola/agendula/ui/lists/ListsViewModel.kt

@@ -29,9 +29,16 @@ sealed interface ListsUiState {
     data class Content(
         val smartCounts: List<SmartCount>,
         val groups: List<AccountGroup>,
+        /** Completed vs. total tasks *due today* — drives the progress ring. */
+        val todayDone: Int,
+        val todayTotal: Int,
+        /** The next few open tasks (due tomorrow onward) for the inline preview. */
+        val upcoming: List<Task>,
     ) : ListsUiState
 }
 
+private const val UPCOMING_PREVIEW = 3
+
 /** The home overview: smart lists with live counts, then user lists by account. */
 @HiltViewModel
 class ListsViewModel @Inject constructor(
@@ -42,12 +49,19 @@ class ListsViewModel @Inject constructor(
         combine(
             repository.taskLists(),
             repository.tasks(TaskFilter.Smart(SmartList.ALL)),
-        ) { lists, openTasks ->
-            buildContent(lists, openTasks) as ListsUiState
+            // Open smart lists drop completed tasks, but the Today ring needs the
+            // ones already ticked off to show "x of y done", so read them too.
+            repository.tasks(TaskFilter.Smart(SmartList.COMPLETED)),
+        ) { lists, openTasks, completedTasks ->
+            buildContent(lists, openTasks, completedTasks) as ListsUiState
         }.catch { emit(ListsUiState.Failure) }
             .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5_000), ListsUiState.Loading)
 
-    private fun buildContent(lists: List<TaskList>, openTasks: List<Task>): ListsUiState.Content {
+    private fun buildContent(
+        lists: List<TaskList>,
+        openTasks: List<Task>,
+        completedTasks: List<Task>,
+    ): ListsUiState.Content {
         val (todayStart, todayEnd) = DayWindow.today(Clock.System.now(), ZoneId.systemDefault())
         // Count only top-level tasks: a subtask is represented by its parent (and
         // its progress chip), and an open subtask under a *completed* parent must
@@ -62,6 +76,21 @@ class ListsViewModel @Inject constructor(
             SmartCount(SmartList.UPCOMING, count(SmartList.UPCOMING)),
             SmartCount(SmartList.ALL, topLevel.size),
         )
+
+        // Today ring: completed vs. total tasks *due today*. The numerator is the
+        // top-level completed tasks whose due date falls in today's window; the
+        // denominator adds the still-open ones (the Today smart count above).
+        val openToday = count(SmartList.TODAY)
+        val completedDueToday = completedTasks.count {
+            !it.isSubtask && it.due != null && it.due >= todayStart && it.due < todayEnd
+        }
+        val todayTotal = openToday + completedDueToday
+
+        // Upcoming preview: the next handful of open tasks due tomorrow onward,
+        // already sorted by the repository's default ordering.
+        val upcoming = topLevel
+            .filter { TaskFiltering.matches(it, TaskFilter.Smart(SmartList.UPCOMING), todayStart, todayEnd) }
+            .take(UPCOMING_PREVIEW)
         val openByList = topLevel.groupingBy { it.listId }.eachCount()
         val groups = lists
             .groupBy { it.accountName }
@@ -72,6 +101,12 @@ class ListsViewModel @Inject constructor(
                 )
             }
             .sortedBy { it.accountName.lowercase() }
-        return ListsUiState.Content(smartCounts, groups)
+        return ListsUiState.Content(
+            smartCounts = smartCounts,
+            groups = groups,
+            todayDone = completedDueToday,
+            todayTotal = todayTotal,
+            upcoming = upcoming,
+        )
     }
 }

app/src/main/java/de/jeanlucmakiola/agendula/ui/navigation/AgendulaNavHost.kt

@@ -52,6 +52,7 @@ fun AgendulaNavHost(modifier: Modifier = Modifier) {
         composable(Dest.LISTS) {
             ListsScreen(
                 onOpenFilter = { filter -> nav.navigate(Dest.TaskList.build(filter)) },
+                onOpenTask = { taskId -> nav.navigate(Dest.TaskDetail.build(taskId)) },
                 onNewTask = { nav.navigate(Dest.TaskEdit.buildNew()) },
                 onOpenSettings = { nav.navigate(Dest.SETTINGS) },
             )

app/src/main/res/values/strings.xml

@@ -129,6 +129,17 @@
     <string name="smart_all">All</string>
     <string name="open_count">%1$d open</string>
 
+    <!-- Home: Today progress hero -->
+    <string name="home_today_progress">%1$d of %2$d done</string>
+    <string name="home_today_remaining">%1$d left</string>
+    <string name="home_today_all_done">All done 🎉</string>
+    <string name="home_today_empty">Nothing due today 🎉</string>
+
+    <!-- Home: Upcoming preview -->
+    <string name="home_upcoming_view_all">View all</string>
+    <string name="home_due_today">Today</string>
+    <string name="home_due_tomorrow">Tomorrow</string>
+
     <!-- Reminders -->
     <string name="reminder_due_at">Due %1$s</string>
     <string name="reminder_channel_name">Task reminders</string>