Day/night backlight color

libpebble3/src/commonMain/kotlin/io/rebble/libpebblecommon/database/entity/WatchPrefEntity.kt

@@ -14,6 +14,7 @@ import io.rebble.libpebblecommon.database.dao.ValueParams
 import io.rebble.libpebblecommon.database.dao.WatchPreference
 import io.rebble.libpebblecommon.database.entity.QuickLaunchSetting.Companion.toJson
 import io.rebble.libpebblecommon.metadata.WatchType
+import io.rebble.libpebblecommon.packets.ProtocolCapsFlag
 import io.rebble.libpebblecommon.packets.blobdb.TimelineAttribute
 import io.rebble.libpebblecommon.packets.blobdb.TimelineItem.Attribute
 import io.rebble.libpebblecommon.services.blobdb.DbWrite
@@ -68,6 +69,11 @@ data class WatchPrefItem(
             logger.w { "Don't know how to encode watch pref key: $id" }
             return null
         }
+        if (type.isBacklightColorScheduleHelperPref() &&
+            !params.capabilities.contains(ProtocolCapsFlag.SupportsBacklightColorSchedule)) {
+            logger.d { "Skipping $id: watch does not support backlight color scheduling" }
+            return null
+        }
         logger.v { "trying to insert watch pref to watch blobdb: $id / $value" }
         val bytes = try {
             when (type.type) {
@@ -132,6 +138,13 @@ data class WatchPrefItem(
     }
 }
 
+fun WatchPref<*>.isBacklightColorScheduleHelperPref(): Boolean {
+    return this == BoolWatchPref.BacklightColorDayNightEnabled ||
+            this == RgbColorWatchPref.BacklightColorNight ||
+            this == NumberWatchPref.BacklightColorSunriseMinute ||
+            this == NumberWatchPref.BacklightColorSunsetMinute
+}
+
 enum class WatchPrefType {
     TypeString,
     TypeUuid,
@@ -203,6 +216,12 @@ enum class BoolWatchPref(
     Backlight("lightEnabled", "Backlight", true),
     AmbientLightSensor("lightAmbientSensorEnabled", "Ambient Light Sensor", true, description = "Only enable backlight when in a dark environment (using light sensor)"),
     BacklightMotion("lightMotion", "Backlight Motion", true, description = "Turn on backlight by flicking wrist"),
+    BacklightColorDayNightEnabled(
+        id = "lightColorDayNightEnabled",
+        displayName = "Change Backlight Color at night",
+        defaultValue = false,
+        description = null,
+    ),
     DynamicBacklightIntensity("lightDynamicIntensity", "Dynamic Backlight Intensity", true, description = "Adjust backlight intensity automatically to match environment (using light sensor)"),
     LanguageEnglish("langEnglish", "Language: English", false),
     TimelineQuickViewEnabled("timelineQuickViewEnabled", "Timeline Quick View", true, description = "Show upcoming events below watchface"),
@@ -524,6 +543,26 @@ enum class NumberWatchPref(
         max = 30,
         unit = "minutes",
     ),
+    BacklightColorSunriseMinute(
+        id = "lightColorSunriseMinute",
+        displayName = "Backlight Color Sunrise Minute",
+        defaultValue = 6L * 60,
+        type = WatchPrefType.TypeUInt16,
+        min = 0,
+        max = 1439,
+        unit = "minutes",
+        isDebugSetting = true,
+    ),
+    BacklightColorSunsetMinute(
+        id = "lightColorSunsetMinute",
+        displayName = "Backlight Color Sunset Minute",
+        defaultValue = 18L * 60,
+        type = WatchPrefType.TypeUInt16,
+        min = 0,
+        max = 1439,
+        unit = "minutes",
+        isDebugSetting = true,
+    ),
     NotificationTimeoutMs(
         id = "notifWindowTimeout",
         displayName = "Notification Timeout",
@@ -578,6 +617,13 @@ enum class RgbColorWatchPref(
         presets = BACKLIGHT_COLOR_PRESETS,
         description = "LED color used when the backlight is on, unless over-ridden by an app (color-backlight watches only)",
     ),
+    BacklightColorNight(
+        id = "lightColorNight",
+        displayName = "Night",
+        defaultValue = LED_WARM_WHITE_RGB,
+        presets = BACKLIGHT_COLOR_PRESETS,
+        description = null,
+    ),
     ;
 
     override val type = WatchPrefType.TypeUInt32

libpebble3/src/commonMain/kotlin/io/rebble/libpebblecommon/packets/System.kt

@@ -372,6 +372,7 @@ enum class ProtocolCapsFlag(val value: Int) {
     SupportsFwUpdateAcrossDisconnection(21),
     SupportsBlobDbVersion(22),
     SupportsSettingsSync(23),
+    SupportsBacklightColorSchedule(24),
     ;
 
     companion object {

pebble/src/commonMain/kotlin/coredevices/pebble/PebbleAppDelegate.kt

@@ -264,4 +264,4 @@ fun PebbleDevice.watchType(): WatchHardwarePlatform? = when (this) {
 fun PebbleDevice.isConnected(): Boolean =
     this is ConnectedPebbleDevice || this is ConnectedPebbleDeviceInRecovery
 
-fun PebbleDevice.hasConnectGoal(): Boolean = isConnected() || this is ConnectingPebbleDevice
+fun PebbleDevice.hasConnectGoal(): Boolean = isConnected() || this is ConnectingPebbleDevice

pebble/src/commonMain/kotlin/coredevices/pebble/backlight/BacklightColorSchedule.kt

@@ -0,0 +1,23 @@
+package coredevices.pebble.backlight
+
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+import kotlin.time.Instant
+
+const val BACKLIGHT_COLOR_USE_WEATHER_SCHEDULE_SETTINGS_KEY =
+    "backlight_color_use_weather_schedule"
+
+fun backlightScheduleMinuteOfDay(
+    instant: Instant,
+    timeZone: TimeZone = TimeZone.currentSystemDefault(),
+): Int {
+    val local = instant.toLocalDateTime(timeZone)
+    return local.hour * 60 + local.minute
+}
+
+fun formatBacklightScheduleMinute(minuteOfDay: Long): String {
+    val minute = minuteOfDay.coerceIn(0, 1439)
+    val hour = minute / 60
+    val minutePart = minute % 60
+    return "${hour.toString().padStart(2, '0')}:${minutePart.toString().padStart(2, '0')}"
+}

pebble/src/commonMain/kotlin/coredevices/pebble/ui/Colors.kt

@@ -507,6 +507,7 @@ fun SelectRgbColor(
     currentRgb: UInt,
     defaultRgb: UInt,
     presets: List<RgbColorPreset>,
+    label: String = "Color",
     onChangeColor: (UInt) -> Unit,
 ) {
     var showPicker by remember { mutableStateOf(false) }
@@ -525,7 +526,7 @@ fun SelectRgbColor(
     val swatchColor = Color(0xFF000000u.toInt() or (currentRgb and 0x00FFFFFFu).toInt())
     val matchedPreset = presets.firstOrNull { it.rgb == currentRgb }
     ListItem(
-        headlineContent = { Text("Color") },
+        headlineContent = { Text(label) },
         supportingContent = {
             Box(modifier = Modifier.padding(4.dp)) {
                 Box(