Teso_Mobile/lib/Pages/home.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:location/location.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:teso/providers/pageAnimations.dart';
import '../Classes/TesoShop.dart';
import 'Sub_Pages/CoinPurchase.dart';
import 'package:teso/providers/user_provider.dart';
import 'package:provider/provider.dart';


class Home extends StatefulWidget {
  final Function? showUploads;
  final Function? toggle;
  const Home({Key? key, this.showUploads, this.toggle}) : super(key: key);
  @override
  _HomeState createState() => _HomeState(showUploads: this.showUploads);
}

class _HomeState extends State<Home> with TickerProviderStateMixin {
  Function? showUploads;
  _HomeState({this.showUploads});
  String title = "Home";
  double titleSize = 45.0;
  String? mapstyle;
  var _future;
  static LatLng? _initialPosition;
  Set<Marker> markers = {};
  List<TesoShop>? shops;
  GoogleMapController? mapController;
  static const double CAMERA_ZOOM = 13.499910354614258;
  Location location = Location();
  String routingMessage = "Finding shops....";
  late LocationData _location;
  // ignore: unused_field
  String? _error;
 
 @override
  void initState() {
    super.initState();
    SharedPreferences.getInstance().then((prefs) async {
       String? currentTheme = prefs.getString("theme");
      if (currentTheme == "dark") {
        rootBundle.loadString('assets/styles/dark.txt').then((string) {
          mapstyle = string;
        });
      } else {
        rootBundle.loadString('assets/styles/light.txt').then((string) {
          mapstyle = string;
        });
      }
      bool first =
          prefs.getBool("launched") != null ? prefs.getBool("launched")! : false;
      if (!first) {
        prefs.setBool("launched", true);
      }
    });
    _future = _determinePosition(context);
    location.onLocationChanged.listen((LocationData cLoc) {
      _initialPosition = LatLng(cLoc.latitude!, cLoc.longitude!);
    });
  }

  @override
  void dispose() {
    super.dispose();
  }

  Future<LatLng?> _determinePosition(context) async {
    setState(() {
      _error = null;
    });
    try {
      final LocationData _locationResult = await location.getLocation();
      setState(() {
        _location = _locationResult;
        _initialPosition = LatLng(_location.latitude!, _location.longitude!);
      });

      // await getLocations();
      return _initialPosition;
    } on PlatformException catch (err) {
      setState(() {
        _error = err.code;
      });
      return _initialPosition;
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      //appBar: buildAppBar(context),
      body: FutureBuilder(
          future: _future,
          builder: (context, snapshot) {
            if (snapshot.connectionState == ConnectionState.waiting) {
              return buildStaleMap(context);
            } else {
              return buildMap(context);
            }
          }),
          floatingActionButton: FloatingActionButton.extended(
        onPressed: () => _currentLocation(),
        label: Text(''),
        icon: Icon(Icons.my_location_outlined),
        backgroundColor: Colors.white,
      ),
      floatingActionButtonLocation: FloatingActionButtonLocation.startFloat,
    );
  }

  Widget buildAppBar(BuildContext context) {
    return PreferredSize(
        child: Material(
          //elevation: 0.4,
          child: AppBar(
            backgroundColor: Theme.of(context).primaryColor,
            automaticallyImplyLeading: false,
            title: Consumer<UserProvider>(builder:
                (BuildContext context, UserProvider value, Widget? child) {
              return Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    title,
                    style: TextStyle(
                      color: Theme.of(context).primaryColorLight,
                      fontFamily: 'DeadheadScript',
                      fontSize: titleSize,
                      letterSpacing: 3.0,
                    ),
                  ),
                  Container(
                    height: 30,
                    child: Row(
                      children: [
                        GestureDetector(
                          onTap: () => Navigator.push(
                            context,
                            PageTransition(
                              type: PageTransitionType.downToUp,
                              child: Coins(
                                initalPage: 0,
                              ),
                            ),
                          ),
                          child: Image(
                            image: AssetImage("assets/images/gold1.png"),
                          ),
                        ),
                        GestureDetector(
                          onTap: () => Navigator.push(
                            context,
                            PageTransition(
                              type: PageTransitionType.downToUp,
                              child: Coins(initalPage: 0),
                            ),
                          ),
                          child: Container(
                            margin: EdgeInsets.only(left: 2),
                            child: Center(
                              child: Text(
                                value.currentUser != null
                                    ? value.currentUser!.gold!
                                    : "0",
                                style: TextStyle(
                                  fontSize: 13.5,
                                  color: Theme.of(context).primaryColorLight,
                                ),
                              ),
                            ),
                          ),
                        ),
                        GestureDetector(
                          onTap: () => Navigator.push(
                            context,
                            PageTransition(
                              type: PageTransitionType.downToUp,
                              child: Coins(initalPage: 1),
                            ),
                          ),
                          child: Image(
                            image: AssetImage("assets/images/silver1.png"),
                          ),
                        ),
                        GestureDetector(
                          onTap: () => Navigator.push(
                            context,
                            PageTransition(
                              type: PageTransitionType.downToUp,
                              child: Coins(initalPage: 1),
                            ),
                          ),
                          child: Container(
                            margin: EdgeInsets.only(left: 2),
                            child: Center(
                              child: Text(
                                value.currentUser != null
                                    ? value.currentUser!.silver!
                                    : "0",
                                style: TextStyle(
                                  fontSize: 13.5,
                                  color: Theme.of(context).primaryColorLight,
                                ),
                              ),
                            ),
                          ),
                        ),
                      ],
                    ),
                  ),
                ],
              );
            }),
          ),
        ),
        preferredSize: Size.fromHeight(50.0));
  }

  Widget buildMap(BuildContext context) {
    return GoogleMap(
      // padding: EdgeInsets.only(
      //   top: 70.0,
      // ),
      zoomGesturesEnabled: true,
      zoomControlsEnabled: false,
      compassEnabled: true,
      myLocationButtonEnabled: false,
      myLocationEnabled: true,
      // markers: markers,
      initialCameraPosition: CameraPosition(
        target: _initialPosition!,
        zoom: CAMERA_ZOOM,
        //bearing: CAMERA_BEARING,
      ),
      onMapCreated: (GoogleMapController controller) {
        controller.setMapStyle(mapstyle);
        mapController = controller;
      },
      onCameraMove: (position) {
        setState(() {
          try {
            _initialPosition =
                LatLng(position.target.latitude, position.target.longitude);
          } catch (e) {
            print(e);
          }
        });
      },
      // polylines: Set<Polyline>.of(polylines.values),
    );
  }

  Widget buildStaleMap(BuildContext context) {
    return GoogleMap(
      // padding: EdgeInsets.only(
      //   top: 70.0,
      // ),
      zoomGesturesEnabled: true,
      zoomControlsEnabled: false,
      compassEnabled: true,
      myLocationButtonEnabled: false,
      myLocationEnabled: true,

      markers: markers,
      initialCameraPosition: CameraPosition(
        target: LatLng(6.700071, -1.630783),
        zoom: CAMERA_ZOOM,
        //bearing: CAMERA_BEARING,
      ),
      onMapCreated: (GoogleMapController controller) {
        controller.setMapStyle(mapstyle);
        mapController = controller;
      },
      onCameraMove: (position) {
        setState(() {
          try {
            _initialPosition =
                LatLng(position.target.latitude, position.target.longitude);
          } catch (e) {
            print(e);
          }
        });
      },
    );
  }
  void _currentLocation() async {
  //  final GoogleMapController controller = await mapController.;
   LocationData? currentLocation;
   var location = new Location();
   try {
     currentLocation = await location.getLocation();
     } on Exception {
       currentLocation = null;
       }

    mapController?.animateCamera(CameraUpdate.newCameraPosition(
      CameraPosition(
        bearing: 0,
        target: LatLng(currentLocation!.latitude!, currentLocation.longitude!),
        zoom: 17.0,
      ),
    ));
  }
}