build: S04 day detail

Co-Authored-By: Claude Opus 5.5 <[email protected]>

wetter/app/src/main/java/app/wetter/ui/screens/DayScreen.kt

@@ -0,0 +1,112 @@
+package app.wetter.ui.screens
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.navigationBarsPadding
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.statusBarsPadding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.widthIn
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.rounded.ArrowBack
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.produceState
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import app.wetter.R
+import app.wetter.data.Fmt
+import app.wetter.data.Graph
+import app.wetter.data.Settings
+import app.wetter.data.Units
+import app.wetter.data.conditionOf
+import app.wetter.ui.components.DailyCapsules
+import app.wetter.ui.components.HourlyStrip
+import app.wetter.ui.components.conditionLabel
+import app.wetter.ui.scene.WeatherIcon
+import app.wetter.ui.theme.WSpace
+import app.wetter.ui.theme.WType
+import java.time.LocalDate
+
+/** S04: one day, picked from the capsule row. */
+@Composable
+fun DayScreen(locationId: Long, initialDate: LocalDate, settings: Settings, onBack: () -> Unit) {
+    val forecast by remember(locationId) { Graph.repo.forecast(locationId) }.collectAsState(initial = null)
+    val location by produceState<app.wetter.data.LocationEntity?>(null, locationId) { value = Graph.repo.location(locationId) }
+    val f = forecast ?: return
+    DayContent(f, location?.name?.ifBlank { null }, initialDate, settings, onBack)
+}
+
+@Composable
+fun DayContent(f: app.wetter.data.Forecast, placeName: String?, initialDate: LocalDate, settings: Settings, onBack: () -> Unit) {
+    var date by rememberSaveable { mutableStateOf(initialDate.toEpochDay()) }
+    val units = remember(settings) { Units(settings) }
+    val day = f.daily.firstOrNull { it.date.toEpochDay() == date } ?: f.daily.first()
+    val cond = conditionOf(day.code)
+    val onBg = MaterialTheme.colorScheme.onBackground
+
+    Box(Modifier.fillMaxSize().background(MaterialTheme.colorScheme.background)) {
+        LazyColumn(
+            Modifier.fillMaxSize(),
+            contentPadding = PaddingValues(bottom = WSpace.s32),
+            verticalArrangement = Arrangement.spacedBy(WSpace.s16),
+        ) {
+            item {
+                Row(Modifier.statusBarsPadding().height(64.dp), verticalAlignment = Alignment.CenterVertically) {
+                    IconButton(onClick = onBack) { Icon(Icons.AutoMirrored.Rounded.ArrowBack, stringResource(R.string.back), tint = onBg) }
+                    Text(stringResource(R.string.daily), style = WType.headline, color = onBg)
+                }
+            }
+            item { DailyCapsules(f.daily, units, selected = day.date, asSection = false) { date = it.date.toEpochDay() } }
+            item {
+                Column(Modifier.padding(horizontal = WSpace.s24)) {
+                    Text(Fmt.longDate(day.date), style = WType.bodySm, color = onBg)
+                    Text(placeName ?: stringResource(R.string.current_location), style = WType.headline, color = onBg)
+                    Row(verticalAlignment = Alignment.CenterVertically) {
+                        Text("${units.temp(day.tMax)}/${units.temp(day.tMin)}", style = WType.dayRange, color = onBg)
+                        Spacer(Modifier.width(WSpace.s8))
+                        WeatherIcon(cond, true, 56.dp)
+                    }
+                    Text(stringResource(conditionLabel(cond, true)), style = WType.body, color = onBg)
+                }
+            }
+            item {
+                val hours = if (day.date == f.now.toLocalDate()) f.upcomingHours(24).filter { it.time.toLocalDate() == day.date } else f.hoursOf(day.date)
+                HourlyStrip(hours, units, Modifier.padding(horizontal = WSpace.s16).widthIn(max = 720.dp), markNow = day.date == f.now.toLocalDate())
+            }
+            item {
+                // the day's own values for the tiles that make sense per day
+                val dayHours = f.hoursOf(day.date)
+                val noon = dayHours.getOrNull(12)
+                val cur = if (day.date == f.now.toLocalDate() || noon == null) f.current else f.current.copy(
+                    temp = noon.temp, code = noon.code, isDay = true, humidity = noon.humidity, windSpeed = noon.windSpeed, uv = day.uvMax,
+                )
+                app.wetter.ui.components.DetailGrid(
+                    cur, day, if (day.date == f.now.toLocalDate()) f.air else null, units,
+                    if (day.date == f.now.toLocalDate()) f.now else day.date.atTime(12, 0),
+                    Modifier.padding(horizontal = WSpace.s16).navigationBarsPadding().widthIn(max = 720.dp).fillMaxWidth(),
+                )
+            }
+        }
+    }
+}