reworked home screen widgets to mirror the in-app timetable, hidden below android 12

android/app/src/main/kotlin/eu/mhsl/marianum/mobile/client/widgets/WidgetData.kt

@@ -11,7 +11,7 @@ import java.util.TimeZone
 // Mirror of lib/widget_data/widget_data.dart — JSON keys + enum names
 // must stay in sync.
 enum class WidgetLessonStatus {
-    REGULAR, ONGOING, PAST, CANCELLED, IRREGULAR, TEACHER_CHANGED, EVENT;
+    REGULAR, ONGOING, PAST, CANCELLED, IRREGULAR, TEACHER_CHANGED, EVENT, DUTY;
 
     companion object {
         fun fromWire(raw: String?): WidgetLessonStatus = when (raw) {
@@ -22,6 +22,7 @@ enum class WidgetLessonStatus {
             "irregular" -> IRREGULAR
             "teacherChanged" -> TEACHER_CHANGED
             "event" -> EVENT
+            "duty" -> DUTY
             else -> REGULAR
         }
     }
@@ -39,6 +40,9 @@ data class WidgetLesson(
     val originalTeacher: String?,
     val status: WidgetLessonStatus,
     val customColor: String?,
+    // Tile colour resolved in Dart (subject colours, palettes); null only for
+    // payloads written before the field existed.
+    val color: Int?,
     val siblingCount: Int,
 )
 
@@ -50,6 +54,12 @@ data class WidgetPeriod(
     val virtualEndMinutes: Int,
 )
 
+data class WidgetDayInfo(
+    val date: Date,
+    val isHoliday: Boolean,
+    val holidayName: String?,
+)
+
 data class WidgetTimetableData(
     val fetchedAt: Date,
     val anchorDate: Date,
@@ -57,6 +67,8 @@ data class WidgetTimetableData(
     val periods: List<WidgetPeriod>,
     val isHoliday: Boolean,
     val holidayName: String?,
+    // Week payload only; empty for the day payload.
+    val days: List<WidgetDayInfo>,
 )
 
 object WidgetDataParser {
@@ -81,6 +93,11 @@ object WidgetDataParser {
         }
     }
 
+    private fun parseColor(raw: String?): Int? {
+        if (raw == null || !Regex("#[0-9A-Fa-f]{6}").matches(raw)) return null
+        return 0xFF000000.toInt() or raw.substring(1).toInt(16)
+    }
+
     fun parse(json: String?): WidgetTimetableData? {
         if (json.isNullOrEmpty()) return null
         return try {
@@ -102,6 +119,7 @@ object WidgetDataParser {
                         originalTeacher = obj.stringOrNull("originalTeacher"),
                         status = WidgetLessonStatus.fromWire(obj.stringOrNull("status")),
                         customColor = obj.stringOrNull("customColor"),
+                        color = parseColor(obj.stringOrNull("color")),
                         siblingCount = obj.optInt("siblingCount", 0),
                     )
                 }
@@ -120,6 +138,18 @@ object WidgetDataParser {
                     )
                 }
             }
+            val daysArray = root.optJSONArray("days")
+            val days = mutableListOf<WidgetDayInfo>()
+            if (daysArray != null) {
+                for (i in 0 until daysArray.length()) {
+                    val obj = daysArray.optJSONObject(i) ?: continue
+                    days += WidgetDayInfo(
+                        date = parseDate(obj.stringOrNull("date")) ?: continue,
+                        isHoliday = obj.optBoolean("isHoliday", false),
+                        holidayName = obj.stringOrNull("holidayName"),
+                    )
+                }
+            }
             WidgetTimetableData(
                 fetchedAt = parseDate(root.stringOrNull("fetchedAt")) ?: Date(),
                 anchorDate = parseDate(root.stringOrNull("anchorDate")) ?: Date(),
@@ -127,6 +157,7 @@ object WidgetDataParser {
                 periods = periods,
                 isHoliday = root.optBoolean("isHoliday", false),
                 holidayName = root.stringOrNull("holidayName"),
+                days = days,
             )
         } catch (_: JSONException) {
             null