import 'dart:developer';

import 'package:flutter/material.dart';
import 'package:flutter_animate/flutter_animate.dart';
import 'package:geocoding/geocoding.dart';
import 'package:geolocator/geolocator.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:prosappco/components/general_primary_button.dart';

class ProfessionalMapScreen extends StatefulWidget {
  const ProfessionalMapScreen({super.key});

  @override
  State<ProfessionalMapScreen> createState() => _ProfessionalMapScreenState();
}

class _ProfessionalMapScreenState extends State<ProfessionalMapScreen> {
  final TextEditingController _addressController = TextEditingController();
  bool _locationPermissionGranted = false;
  late GoogleMapController googleMapController;
  late Position currentPosition;
  var coords;

  @override
  void initState() {
    super.initState();
    _getLocation();
  }

  Future<void> _getLocation() async {
    try {
      final position = await _determinePosition();
      setState(() {
        currentPosition = position;
        _locationPermissionGranted = true;
      });
    } catch (e) {
      log('Error getting location: $e');
    }
  }

  Future<Position> _determinePosition() async {
    bool serviceEnabled;
    LocationPermission permission;

    serviceEnabled = await Geolocator.isLocationServiceEnabled();

    if (!serviceEnabled) {
      throw 'Location services are disabled';
    }

    permission = await Geolocator.checkPermission();

    if (permission == LocationPermission.denied) {
      permission = await Geolocator.requestPermission();

      if (permission == LocationPermission.denied) {
        throw 'Location permission denied';
      }
    }

    if (permission == LocationPermission.deniedForever) {
      throw 'Location permissions are permanently denied';
    }

    return await Geolocator.getCurrentPosition();
  }

  Future<String> getLocationName(double latitude, double longitude) async {
    String address;
    List<Placemark> placemarks =
        await placemarkFromCoordinates(latitude, longitude);
    Placemark place = placemarks[0];

    if (place.thoroughfare != '' || place.subThoroughfare != '') {
      address =
          "${place.thoroughfare} ${place.subThoroughfare} ${place.subLocality}, ${place.locality}, ${place.administrativeArea}";
    } else {
      address = '';
    }
    return address;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Ubicación'),
        actions: [
          IconButton(
            icon: const Icon(Icons.my_location),
            onPressed: () async {
              try {
                final position = await _determinePosition();

                if (googleMapController != null) {
                  googleMapController.animateCamera(
                    CameraUpdate.newCameraPosition(
                      CameraPosition(
                        target: LatLng(position.latitude, position.longitude),
                        zoom: 18,
                      ),
                    ),
                  );
                } else {
                  log('Google Map Controller is not initialized.');
                }

                setState(() {
                  currentPosition = position;
                  _locationPermissionGranted = true;
                });
              } catch (e) {
                log('Error getting location: $e');
                setState(() {
                  _locationPermissionGranted = false;
                });
                ScaffoldMessenger.of(context).clearSnackBars();
                ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(
                    content: const Text(
                        'Los servicios de ubicación están desactivados'),
                    action: SnackBarAction(
                      label: 'Configuración',
                      onPressed: () {
                        Geolocator.openLocationSettings();
                      },
                    ),
                  ),
                );
              }
            },
          ),
        ],
      ),
      backgroundColor: const Color(0xFFD6F4FF),
      body: Stack(
        children: [
          _locationPermissionGranted
              ? GoogleMap(
                  mapType: MapType.normal,
                  initialCameraPosition: CameraPosition(
                    target: LatLng(
                        currentPosition.latitude, currentPosition.longitude),
                    zoom: 16,
                  ),
                  zoomControlsEnabled: false,
                  myLocationEnabled: true,
                  onMapCreated: (GoogleMapController controller) {
                    googleMapController = controller;
                  },
                  onCameraMove: (position) {
                    setState(() {
                      coords = position.target;
                    });
                  },
                  onCameraIdle: () async {
                    final isLocationEnabled =
                        await Geolocator.isLocationServiceEnabled();
                    if (!isLocationEnabled) {
                      setState(() {
                        _locationPermissionGranted = false;
                      });
                      ScaffoldMessenger.of(context).clearSnackBars();
                      ScaffoldMessenger.of(context).showSnackBar(
                        SnackBar(
                          content: const Text(
                              'Los servicios de ubicación están desactivados'),
                          action: SnackBarAction(
                            label: 'Configuración',
                            onPressed: () {
                              Geolocator.openLocationSettings();
                            },
                          ),
                        ),
                      );
                    }
                    if (coords != null) {
                      getLocationName(coords.latitude, coords.longitude)
                          .then((locationName) {
                        setState(() {
                          _addressController.text = locationName;
                        });
                      });
                    }
                  },
                )
              : Container(
                  color: Colors.white,
                  child: Center(
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.center,
                      children: [
                        const CircularProgressIndicator()
                            .animate()
                            .fadeOut(duration: const Duration(seconds: 2)),
                        const SizedBox(height: 8),
                        const Text('Cargando...')
                            .animate()
                            .fadeOut(duration: const Duration(seconds: 2)),
                        const Text('Permita los permisos de ubicación')
                            .animate()
                            .fadeIn(delay: const Duration(seconds: 2))
                            .scale(),
                      ],
                    ),
                  ),
                ),
          _locationPermissionGranted
              ? Container(
                  decoration: BoxDecoration(
                    color: Colors.white,
                    boxShadow: [
                      BoxShadow(
                        color: Colors.grey.withOpacity(0.5),
                        spreadRadius: 1,
                        blurRadius: 5,
                        offset: const Offset(0, 2),
                      ),
                    ],
                  ),
                  child: Padding(
                    padding: const EdgeInsets.only(
                      left: 18,
                      right: 18,
                      bottom: 15,
                    ),
                    child: TextFormField(
                      readOnly: true,
                      controller: _addressController,
                      decoration: const InputDecoration(
                        prefixIcon: Icon(Icons.near_me),
                        hintText: 'Dirección',
                      ),
                    ),
                  ),
                )
              : const SizedBox(),
          _locationPermissionGranted
              ? const Positioned(
                  bottom: 30,
                  right: 0,
                  left: 0,
                  top: 0,
                  child: Icon(
                    Icons.location_on,
                    size: 40,
                    color: Colors.red,
                  ),
                )
              : const SizedBox(),
          _locationPermissionGranted
              ? Positioned(
                  bottom: 30,
                  child: SizedBox(
                    width: MediaQuery.of(context).size.width,
                    child: Center(
                      child: GeneralPrimaryButton(
                        label: 'Guardar',
                        isEnabled: _locationPermissionGranted,
                        onPressed: () {
                          Navigator.pop(context, {
                            "address": _addressController.text,
                            'latitude': coords.latitude,
                            'longitude': coords.longitude,
                          });
                        },
                      ),
                    ),
                  ),
                )
              : const SizedBox(),
        ],
      ),
    );
  }
}