ambito/lib/src/widgets/map/map_widget.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';

import '../../packages/ambito_theme/ambito_theme.dart';

class MapWidget extends StatefulWidget {
  const MapWidget({super.key, required this.markers, required this.polygons});

  final Set<Marker>? markers;
  final Set<Polygon>? polygons;

  @override
  State<StatefulWidget> createState() => MapWidgetState();
}

class MapWidgetState extends State<MapWidget> {
  final Completer<GoogleMapController> _controller =
      Completer<GoogleMapController>();

  bool _drawPolygon = false;
  int _counter = 0;

  static CameraPosition _initialPos = const CameraPosition(
    target: LatLng(0, 0),
    zoom: 14.4746,
  );

  @override
  void initState() {
    if (widget.markers != null) {
      setState(() {
        _initialPos =
            CameraPosition(target: widget.markers!.first.position, zoom: 14);
      });
    }
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    final AmbitoTheme theme = getTheme(context);
    return ClipRRect(
      borderRadius: BorderRadius.circular(10.0),
      child: SizedBox(
          width: double.infinity,
          height: 600,
          child: Column(
            children: [
              Row(
                children: [
                  Spacer(),
                  IconButton(
                      onPressed: () {
                        setState(() {
                          _drawPolygon = !_drawPolygon;
                        });
                      },
                      icon: Icon(
                        Icons.polyline_outlined,
                        color: (_drawPolygon
                            ? theme.currentColorScheme.primary
                            : theme.currentColorScheme.outline),
                      ))
                ],
              ),
              Expanded(
                child: GoogleMap(
                  onTap: (position) {
                    if (_drawPolygon == true) {
                      setState(() {
                        widget.markers?.add(Marker(
                            markerId: MarkerId('polygon_$_counter'),
                            position: position));
                        _counter++;
                      });
                    }
                  },
                  mapToolbarEnabled: true,
                  mapType: MapType.hybrid,
                  markers: widget.markers ?? {},
                  polygons: widget.polygons ?? {},
                  initialCameraPosition: _initialPos,
                  onMapCreated: (GoogleMapController controller) {
                    _controller.complete(controller);
                  },
                ),
              ),
            ],
          )),
    );
  }
}