import 'dart:io';

import 'package:bbm_tracking/bloc/bbm_bloc.dart';
import 'package:bbm_tracking/model/kendaraan_m.dart';
import 'package:bbm_tracking/model/transaksi_m.dart';
import 'package:bbm_tracking/pages/AboutApps/index.dart';
import 'package:bbm_tracking/pages/form-tambah-data-bensin/index.dart';
import 'package:bbm_tracking/pages/kendaraan/form-tambah-kendaraan/form.dart';
import 'package:bbm_tracking/pages/kendaraan/index_kendaraan.dart';
import 'package:bbm_tracking/repository/kendaraan/kendaraan_repository.dart';
import 'package:bbm_tracking/repository/transaksi/transaksi_repository.dart';
import 'package:bbm_tracking/resource/component-bersama/chart.dart';
import 'package:bbm_tracking/pages/mainMenu/component/item_bensin.dart';
import 'package:bbm_tracking/pages/mainMenu/index.dart';
import 'package:bbm_tracking/pages/riwayat/index.dart';
import 'package:bbm_tracking/resource/popup/popup.dart';
import 'package:camera/camera.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:geolocator/geolocator.dart';
import 'package:pandabar/main.view.dart';
import 'package:pandabar/model.dart';

class Home extends StatefulWidget {
  final String screen;
  final String param;

  Home(this.screen, this.param);

  @override
  State<Home> createState() => _HomeState();
}

class _HomeState extends State<Home> {
  late String screen = 'home';
  late String param;
  late List<KendaraanModel> dataKendaraan;
  late KendaraanModel dt;
  late bool paramKendaran = false;
  late int paramText = 0;
  late bool cond = false;
  var firstCamera;

  late bool _gpsEnable;
  void ButtonAddTransaksi() {
    if (dataKendaraan != null || dataKendaraan.length != 0) {
      for (KendaraanModel element in dataKendaraan) {
        if (element.status == 1) {
          paramKendaran = true;
          dt = element;
          cond = true;
          paramText = 2;
          break;
        }
        paramKendaran = false;
        paramText = 1;
      }
    } else {
      paramKendaran = false;
      paramText = 0;
    }

    paramKendaran
        ? Navigator.of(context).push(
            MaterialPageRoute(
              builder: (context) => FormTamabahDataBensin(
                kendaraanModel: dt,
                camera: firstCamera,
                key: UniqueKey(),
              ),
            ),
          )
        : showDialog(
            context: context,
            builder: (BuildContext context) {
              return PopUp(
                text: paramText == 1
                    ? "Maaf, Silakan aktifkan kendaraan Anda terlebih dahulu"
                    : "Maaf, Silakan tambahkan kendaraan Anda terlebih dahulu",
                param: "negative",
              );
            },
          );
  }

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    screen = widget.screen;
    param = widget.param;

    context.read<BbmBloc>()..add(BBMStarted());
    // setState(() {
    //   widget.screen != null ? screen = "${widget.screen}" : screen = "home";
    // });
    initilizeCamera();
    checkGPS();
  }

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

    // Test if location services are enabled.
    serviceEnabled = await Geolocator.isLocationServiceEnabled();

    if (!serviceEnabled) {
      // Location services are not enabled don't continue
      // accessing the position and request users of the
      // App to enable the location services.
      return Future.error('Location services are disabled.');
    } else {
      _gpsEnable = true;
    }

    permission = await Geolocator.checkPermission();
    if (permission == LocationPermission.denied) {
      permission = await Geolocator.requestPermission();
      if (permission == LocationPermission.denied) {
        // Permissions are denied, next time you could try
        // requesting permissions again (this is also where
        // Android's shouldShowRequestPermissionRationale
        // returned true. According to Android guidelines
        // your App should show an explanatory UI now.
        return Future.error('Location permissions are denied');
      }
    }

    if (permission == LocationPermission.deniedForever) {
      // Permissions are denied forever, handle appropriately.
      return Future.error(
          'Location permissions are permanently denied, we cannot request permissions.');
    }
    // When we reach here, permissions are granted and we can
    // continue accessing the position of the device.
    return await Geolocator.getCurrentPosition();
  }

  Future<void> initilizeCamera() async {
    WidgetsFlutterBinding.ensureInitialized();

    // Obtain a list of the available cameras on the device.
    final cameras = await availableCameras();

    // Get a specific camera from the list of available cameras.
    setState(() {
      firstCamera = cameras.first;
    });
  }

  Future<bool> _onWillPop() async {
    showDialog(
      context: context,
      builder: (context) {
        return AlertDialog(
          title: new Text('Apa Kamu Yakin?'),
          content: new Text('Kamu ingin Keluar Aplikasi'),
          actions: <Widget>[
            TextButton(
              onPressed: () => Navigator.of(context).pop(false),
              child: new Text('No'),
            ),
            TextButton(
              onPressed: () => SystemNavigator.pop(),
              child: new Text('Yes'),
            ),
          ],
        );
      },
    );
    return false;
  }

  // String page = 'home';
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Color(0xffE3EAEA),
      bottomNavigationBar: PandaBar(
        backgroundColor: Color(0xFFD2E1E1),
        buttonSelectedColor: Color(0xFFFC8D05),
        fabColors: [Color(0xFFFC8D05), Color(0xFFDDB05E)],
        buttonData: [
          PandaBarButtonData(
            id: 'home',
            icon: Icons.home,
            title: 'Home',
          ),
          PandaBarButtonData(
            id: 'kendaraan',
            icon: Icons.directions_car_filled_outlined,
            title: 'Kendaraan',
          ),
          PandaBarButtonData(
            id: 'riwayat',
            icon: Icons.account_balance_wallet_outlined,
            title: 'Riwayat',
          ),
          PandaBarButtonData(
            id: 'tentang',
            icon: Icons.assignment_late_outlined,
            title: 'Tentang',
          ),
        ],
        onChange: (id) {
          setState(() {
            screen = id;
          });
        },
        onFabButtonPressed: () {
          ButtonAddTransaksi();
        },
      ),
      body: BlocBuilder<BbmBloc, BbmState>(
        builder: (context, state) {
          if (state is BBMLoaded) {
            dataKendaraan = state.kendaraan;
            return WillPopScope(
              onWillPop: () => _onWillPop(),
              child: SafeArea(
                child: Padding(
                  padding: EdgeInsets.only(
                    left: 10,
                    right: 10,
                  ),
                  child: Builder(
                    builder: (context) {
                      // print("screen = " + param);
                      switch (screen) {
                        case 'home':
                          return IndexMainMenu();
                        case 'kendaraan':
                          // context.read<BbmBloc>().add(BBMAllDataKendaraan());
                          return IndexKendaraan();
                        case 'riwayat':
                          return Riwayat(
                            dataKendaraan,
                            key: UniqueKey(),
                            data: state.transaksi,
                          );
                        case 'tentang':
                          return AboutApps();
                        default:
                          return IndexMainMenu();
                      }
                    },
                  ),
                ),
              ),
            );
          }
          return Container();
        },
      ),
    );
  }
}