tripz/lib/controller/home/map_page_controller.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'dart:math' as math;
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:google_polyline_algorithm/google_polyline_algorithm.dart';
import 'package:location/location.dart';
import 'package:ride/constant/colors.dart';
import 'package:ride/constant/credential.dart';
import 'package:ride/constant/links.dart';
import 'package:ride/constant/style.dart';
import 'package:ride/controller/functions/crud.dart';

class MapController extends GetxController {
  bool isloading = true;
  TextEditingController placeController = TextEditingController();
  List data = [];
  List<LatLng> bounds = [];
  List places = [];
  LatLngBounds? boundsdata;
  List<Marker> markers = [];
  List<Polyline> polylines = [];
  late LatLng mylocation;
  LatLng mydestination = const LatLng(32.115295, 36.064773);
  final List<LatLng> polylineCoordinates = [];
  BitmapDescriptor markerIcon = BitmapDescriptor.defaultMarker;
  double height = 200;
  final location = Location();
  late LocationData currentLocation;
  changeHeight() {
    if (places.isEmpty) {
      height = 0;
      update();
    }
    height = 200;
    update();
  }

  hidePlaces() {
    height = 0;

    update();
  }

  Future getPlaces() async {
    var url =
        '${AppLink.googleMapsLink}place/nearbysearch/json?keyword=${placeController.text}&location=32.111946,${mylocation.longitude}&radius=10000&type=restaurant&language=ar&key=${AppCredintials.mapAPIKEY}';

    var response = await CRUD().getGoogleApi(link: url, payload: {});

    places = response['results'];
    print(places);
    update();
  }

  LatLng fromString(String location) {
    List<String> parts = location.split(',');
    double lat = double.parse(parts[0]);
    double lng = double.parse(parts[1]);
    return LatLng(lat, lng);
  }

  void clearpolyline() {
    polylines = [];
    polylineCoordinates.clear();
    update();
  }

  void addCustomPicker() {
    ImageConfiguration config = const ImageConfiguration(
      size: Size(20, 20),
      // scale: 1.0,
    );
    BitmapDescriptor.fromAssetImage(config, 'assets/images/picker.png')
        .then((value) {
      markerIcon = value;
      update();
    });
  }

  Future<void> getLocation() async {
    bool serviceEnabled;
    PermissionStatus permissionGranted;

    // Check if location services are enabled
    serviceEnabled = await location.serviceEnabled();
    if (!serviceEnabled) {
      serviceEnabled = await location.requestService();
      if (!serviceEnabled) {
        // Location services are still not enabled, handle the error
        return;
      }
    }

    // Check if the app has permission to access location
    permissionGranted = await location.hasPermission();
    if (permissionGranted == PermissionStatus.denied) {
      permissionGranted = await location.requestPermission();
      if (permissionGranted != PermissionStatus.granted) {
        // Location permission is still not granted, handle the error
        return;
      }
    }

    // Get the current location
    LocationData _locationData = await location.getLocation();
    mylocation =
        (_locationData.latitude != null && _locationData.longitude != null
            ? LatLng(_locationData.latitude!, _locationData.longitude!)
            : null)!;
    print(_locationData.accuracy);
    print(_locationData.latitude);
    print(_locationData.time);
    print('//////////////////////////////////////');
    update();
  }

  GoogleMapController? mapController;
  void onMapCreated(GoogleMapController controller) {
    mapController = controller;
    controller.getVisibleRegion();
    // controller.animateCamera(
    //   CameraUpdate.newLatLng(mylocation),
    // );
    update();
  }

  getMap(String origin, destination) async {
    var origin1 = fromString(origin);
    var destination1 = fromString(destination);
    isloading = false;
    mydestination = destination1;
    mylocation = origin1;
    update();

    var url =
        ('${AppLink.googleMapsLink}directions/json?&language=en&avoid=tolls|ferries&destination=$destination&origin=$origin&key=${AppCredintials.mapAPIKEY}');

    var response = await CRUD().getGoogleApi(link: url, payload: {});
    data = response['routes'][0]['legs'];

    final points =
        decodePolyline(response["routes"][0]["overview_polyline"]["points"]);
    for (int i = 0; i < points.length; i++) {
      double lat = points[i][0].toDouble();
      double lng = points[i][1].toDouble();
      polylineCoordinates.add(LatLng(lat, lng));
    }
//  Define the northeast and southwest coordinates
    final bounds = response["routes"][0]["bounds"];

    LatLng northeast =
        LatLng(bounds['northeast']['lat'], bounds['northeast']['lng']);
    LatLng southwest =
        LatLng(bounds['southwest']['lat'], bounds['southwest']['lng']);

    // Create the LatLngBounds object
    LatLngBounds boundsData =
        LatLngBounds(northeast: northeast, southwest: southwest);

// Calculate the zoom level based on the distance and screen size

    double distanceOfDestnation =
        getDistanceFromText(data[0]['distance']['text']);

    // Animate the camera to the adjusted bounds
    if (distanceOfDestnation > 16 && distanceOfDestnation < 30) {
      mapController!.animateCamera(CameraUpdate.newLatLngZoom(mylocation, 10));
    } else if (distanceOfDestnation > 30 && distanceOfDestnation < 100) {
      mapController!.animateCamera(CameraUpdate.newLatLngZoom(mylocation, 8));
    } else if (distanceOfDestnation > 100) {
      mapController!.animateCamera(CameraUpdate.newLatLngZoom(mylocation, 6));
    } else {
      mapController!.animateCamera(CameraUpdate.newLatLngZoom(mylocation, 11));
    }
    if (polylines.isNotEmpty) {
      clearpolyline();
    } else {
      var polyline = Polyline(
        polylineId: PolylineId(response["routes"][0]["summary"]),
        points: polylineCoordinates,
        width: 10,
        color: Colors.blue,
      );

      polylines.add(polyline);
      update();
    }
  }

  double getDistanceFromText(String distanceText) {
    // Remove any non-digit characters from the distance text
    String distanceValue = distanceText.replaceAll(RegExp(r'[^0-9.]+'), '');

    // Parse the extracted numerical value as a double
    double distance = double.parse(distanceValue);

    return distance;
  }

  void bottomSheet() {
    String distanceText = data[0]['distance']['text'];
    String durationText = data[0]['duration']['text'];
    double distance = getDistanceFromText(distanceText);
    double duration = getDistanceFromText(durationText);
    double cost = distance * 0.21;
    double costDuration = duration * 0.05;
    double totalPassenger = cost + costDuration;
    Get.bottomSheet(
      Container(
        height: 130,
        color: AppColor.secondaryColor,
        child: data.isEmpty
            ? Center(
                child: Text(
                'Where are you want to go..',
                style: AppStyle.title,
              ))
            : Center(
                child: Column(
                  children: [
                    Row(
                      mainAxisAlignment: MainAxisAlignment.spaceAround,
                      children: [
                        Text(
                          'distance is ${data[0]['distance']['text']}',
                          style: AppStyle.title,
                        ),
                        Text(
                          'duration is ${data[0]['duration']['text']}',
                          style: AppStyle.title,
                        ),
                      ],
                    ),
                    Row(
                      mainAxisAlignment: MainAxisAlignment.spaceAround,
                      children: [
                        Text(
                          'Cost for .21/km $cost ',
                          style: AppStyle.title,
                        ),
                        Text(
                          'Cost duration .05/m $costDuration ',
                          style: AppStyle.title,
                        ),
                      ],
                    ),
                    Text(
                      'Total cost $totalPassenger ',
                      style: AppStyle.title,
                    ),
                  ],
                ),
              ),
      ),
      elevation: 6,
      enableDrag: true,
      isDismissible: true,
      useRootNavigator: true,
      backgroundColor: AppColor.secondaryColor,
      barrierColor: AppColor.accentColor.withOpacity(.4),
      persistent: true,
    );
  }

  List<LatLng> polylineCoordinate = [];
  double calculateCost(double distance) {
    const double costRate = 0.27;
    // double distanceInKm = distance / 1000; // convert distance to kilometers
    double cost = costRate * distance;
    return cost;
  }

  @override
  void onInit() {
    // getPolyLine();
    // getMap();
    addCustomPicker();
    getLocation();
    super.onInit();
  }
}