Implement Asia/Manila Time Zone

Handled saving of Relievers

lib/models/app_settings.dart

@@ -1,19 +1,69 @@
 class GeofenceConfig {
-  GeofenceConfig({
-    required this.lat,
-    required this.lng,
-    required this.radiusMeters,
-  });
+  GeofenceConfig({this.lat, this.lng, this.radiusMeters, this.polygon});
+
+  final double? lat;
+  final double? lng;
+  final double? radiusMeters;
+  final List<GeofencePoint>? polygon;
+
+  bool get hasPolygon => polygon?.isNotEmpty == true;
+  bool get hasCircle =>
+      lat != null && lng != null && radiusMeters != null && radiusMeters! > 0;
+
+  bool containsPolygon(double pointLat, double pointLng) {
+    final points = polygon;
+    if (points == null || points.isEmpty) return false;
+    var inside = false;
+    for (var i = 0, j = points.length - 1; i < points.length; j = i++) {
+      final xi = points[i].lng;
+      final yi = points[i].lat;
+      final xj = points[j].lng;
+      final yj = points[j].lat;
+
+      final intersects =
+          ((yi > pointLat) != (yj > pointLat)) &&
+          (pointLng < (xj - xi) * (pointLat - yi) / (yj - yi) + xi);
+      if (intersects) {
+        inside = !inside;
+      }
+    }
+    return inside;
+  }
+
+  factory GeofenceConfig.fromJson(Map<String, dynamic> json) {
+    final rawPolygon = json['polygon'] ?? json['points'];
+    final polygonPoints = <GeofencePoint>[];
+    if (rawPolygon is List) {
+      for (final entry in rawPolygon) {
+        if (entry is Map<String, dynamic>) {
+          polygonPoints.add(GeofencePoint.fromJson(entry));
+        } else if (entry is Map) {
+          polygonPoints.add(
+            GeofencePoint.fromJson(Map<String, dynamic>.from(entry)),
+          );
+        }
+      }
+    }
+
+    return GeofenceConfig(
+      lat: (json['lat'] as num?)?.toDouble(),
+      lng: (json['lng'] as num?)?.toDouble(),
+      radiusMeters: (json['radius_m'] as num?)?.toDouble(),
+      polygon: polygonPoints.isEmpty ? null : polygonPoints,
+    );
+  }
+}
+
+class GeofencePoint {
+  const GeofencePoint({required this.lat, required this.lng});
 
   final double lat;
   final double lng;
-  final double radiusMeters;
 
-  factory GeofenceConfig.fromJson(Map<String, dynamic> json) {
-    return GeofenceConfig(
+  factory GeofencePoint.fromJson(Map<String, dynamic> json) {
+    return GeofencePoint(
       lat: (json['lat'] as num).toDouble(),
       lng: (json['lng'] as num).toDouble(),
-      radiusMeters: (json['radius_m'] as num).toDouble(),
     );
   }
 }