import 'dart:async';
import 'dart:io';

import 'package:flutter/material.dart';
import 'package:auto_size_text/auto_size_text.dart';
import 'package:flutter/services.dart';
import 'package:manager_api/api.dart';
import 'package:mymuseum_visitapp/Components/CustomAppBar.dart';
import 'package:mymuseum_visitapp/Components/Loading.dart';
import 'package:mymuseum_visitapp/Helpers/DatabaseHelper.dart';
import 'package:mymuseum_visitapp/Helpers/networkCheck.dart';
import 'package:mymuseum_visitapp/Helpers/requirement_state_controller.dart';
import 'package:mymuseum_visitapp/Helpers/translationHelper.dart';
import 'package:mymuseum_visitapp/Models/beaconSection.dart';
import 'package:mymuseum_visitapp/Models/visitContext.dart';
import 'package:mymuseum_visitapp/Screens/Visit/visit.dart';
import 'package:mymuseum_visitapp/Services/apiService.dart';
import 'package:mymuseum_visitapp/Services/downloadConfiguration.dart';
import 'package:mymuseum_visitapp/app_context.dart';
import 'package:mymuseum_visitapp/client.dart';
import 'package:mymuseum_visitapp/constants.dart';
import 'package:provider/provider.dart';

import 'configurations_list.dart';

class HomePage extends StatefulWidget {
  const HomePage({Key? key}) : super(key: key);

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> with WidgetsBindingObserver {
  int currentIndex = 0;

  List<ConfigurationDTO> configurations = [];
  List<String?> alreadyDownloaded = [];
  VisitAppContext? visitAppContext;

  @override
  Widget build(BuildContext context) {
    Size size = MediaQuery.of(context).size;
    final appContext = Provider.of<AppContext>(context);
    visitAppContext = appContext.getContext();

    return Scaffold(
      appBar: CustomAppBar(
        title: TranslationHelper.getFromLocale("visitTitle", appContext.getContext()),
        isHomeButton: false,
      ),
      body: SingleChildScrollView(
        child: SizedBox(
          width: size.width,
          height: size.height,
          child: FutureBuilder(
              future: getConfigurationsCall(appContext.clientAPI, appContext),
              builder: (context, AsyncSnapshot<dynamic> snapshot) {
                if (snapshot.connectionState == ConnectionState.done) {
                  configurations = List<ConfigurationDTO>.from(snapshot.data).where((configuration) => configuration.isMobile!).toList();
                  return RefreshIndicator (
                    onRefresh: () {
                      setState(() {});
                      return Future(() => null);
                    },
                    color: kSecondColor,
                    child: ConfigurationsList(
                        alreadyDownloaded: alreadyDownloaded,
                        configurations: configurations,
                        requestRefresh: () {
                          setState(() {}); // For refresh
                        },
                    ),
                  );
                } else if (snapshot.connectionState == ConnectionState.none) {
                  return Text(TranslationHelper.getFromLocale("noData", appContext.getContext()));
                } else {
                  return Center(
                      child: Container(
                          height: size.height * 0.15,
                          child: Loading()
                      )
                  );
                }
              }
          ),
        )
      ),
      //floatingActionButton: ScannerBouton(appContext: appContext),
      //floatingActionButtonLocation: FloatingActionButtonLocation.miniCenterFloat,
      /*bottomNavigationBar: BottomNavigationBar(
        currentIndex: currentIndex,
        onTap: (index) {
          setState(() {
            currentIndex = index;
          });

          if (currentIndex == 0) {
            controller.startScanning();
          } else {
            controller.pauseScanning();
            controller.startBroadcasting();
          }
        },
        items: [
          BottomNavigationBarItem(
            icon: Icon(Icons.list),
            label: 'Scan',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.bluetooth_audio),
            label: 'Broadcast',
          ),
        ],
      ),*/
    );
  }

  Future<List<ConfigurationDTO>?> getConfigurationsCall(Client client, AppContext appContext) async {
    bool isOnline = await hasNetwork();
    VisitAppContext visitAppContext = appContext.getContext();

    List<ConfigurationDTO>? configurations;
    configurations = List<ConfigurationDTO>.from(await DatabaseHelper.instance.getData(DatabaseTableType.configurations));
    alreadyDownloaded = configurations.map((c) => c.id).toList();

    if(!isOnline) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text(TranslationHelper.getFromLocale("noInternet", appContext.getContext())), backgroundColor: kBlue2),
      );

      // TODO HANDLE BEACON IN LOCAL (CREATE TABLE)

      return configurations;
    }

    if(visitAppContext.beaconSections == null) {
      List<SectionDTO>? sections = await ApiService.getAllBeacons(client, visitAppContext.instanceId!);
      if(sections != null && sections.isNotEmpty) {
        List<BeaconSection> beaconSections = sections.map((e) => BeaconSection(minorBeaconId: e.beaconId, orderInConfig: e.order, configurationId: e.configurationId, sectionId: e.id)).toList();
        visitAppContext.beaconSections = beaconSections;
        print("Got some Beacons for you");
        print(beaconSections);
        appContext.setContext(visitAppContext); // STORE IT, TODO Store it locally
      }
    }

    return await ApiService.getConfigurations(client, visitAppContext);
  }
}