import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_map/flutter_map.dart';
import 'package:latlong2/latlong.dart';
import 'package:libacflutter/Constants.dart';
import 'package:timetrack/data.dart';

class MapPage extends StatefulWidget {
  MapPage({super.key});

  @override
  State<StatefulWidget> createState() {
    return _MapPage();
  }
}

class _MapPage extends State<MapPage> {
  MapController controller = MapController();
  LatLng initialPosition = LatLng(0, 0);
  List<LatLng> PointMap = [];
  List<Marker> Markers = [];
  bool autorefresh = true;

  @override
  void initState() {
    SessionData.Calls.MapCallback = call;
    super.initState();
  }

  void call() {
    if (autorefresh) {
      didChangeDependencies();
    }
    setState(() {});
  }

  @override
  void didChangeDependencies() {
    PointMap = [];
    Markers = [];

    var firstPos = SessionData.positions[0];
    initialPosition = LatLng(firstPos.latitude, firstPos.longitude);

    for (var position in SessionData.positions) {
      PointMap.add(LatLng(position.latitude, position.longitude));
    }

    print("Total trips: ${SessionData.Trips.length}");

    for (var trip in SessionData.Trips) {
      for (var dropOff in trip.deliveries) {
        Markers.add(
          Marker(
            point: LatLng(
              dropOff.endLocation!.latitude,
              dropOff.endLocation!.longitude,
            ),
            child: Stack(
              children: [
                IconButton(
                  onPressed: () {
                    showDialog(
                      context: context,
                      builder: (builder) {
                        return AlertDialog(
                          title: Text(
                            "Trip #${SessionData.Trips.indexOf(trip) + 1}; DropOff #${trip.deliveries.indexOf(dropOff) + 1}",
                          ),
                        );
                      },
                    );
                  },
                  icon: Icon(
                    Icons.location_on_rounded,
                    size: 24,
                    color: Colors.red,
                  ),
                ),
              ],
            ),
          ),
        );
        print("Marker added");
      }
    }

    setState(() {});
    super.didChangeDependencies();
  }

  @override
  void dispose() {
    SessionData.Calls.MapCallback = null;

    controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Time Tracker - Map View"),
        backgroundColor: LibACFlutterConstants.TITLEBAR_COLOR,
        actions: [
          IconButton(
            onPressed: () async {
              didChangeDependencies();
            },
            icon: Icon(Icons.refresh),
          ),
          IconButton(
            onPressed: () {
              autorefresh = !autorefresh;
            },
            icon:
                autorefresh
                    ? Icon(Icons.play_disabled)
                    : Icon(Icons.play_circle),
          ),
        ],
      ),
      body: GestureDetector(
        onTap: FocusScope.of(context).unfocus,
        child: SafeArea(
          child: FlutterMap(
            mapController: controller,
            options: MapOptions(
              minZoom: 1,
              maxZoom: 30,
              initialZoom: 15,
              initialCenter: initialPosition,
              keepAlive: false,
            ),
            children: [
              TileLayer(
                urlTemplate: "https://tile.openstreetmap.org/{z}/{x}/{y}.png",
                userAgentPackageName: "dev.zontreck.timetrack",
              ),
              PolylineLayer(
                polylines: [
                  Polyline(
                    points: PointMap,
                    color: Colors.blue,
                    borderStrokeWidth: 8,
                    borderColor: Colors.blue,
                  ),
                ],
              ),
              MarkerLayer(markers: Markers),
              RichAttributionWidget(
                attributions: [
                  TextSourceAttribution('OpenStreetMap contributors'),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }
}