import 'package:flutter/material.dart';
import '../widgets/diagonally_cut_colored_image.dart';
import '../app_settings.dart';
import '../style.dart';

import 'package:webview_flutter/webview_flutter.dart';
import '../widgets/appbar_search.dart';
import '../strings.dart';
import 'package:path_provider/path_provider.dart';
import 'package:flutter/services.dart';
import 'dart:collection';

import 'dart:async';

import 'dart:convert';
import 'package:flutter/foundation.dart';
import 'package:flutter/gestures.dart';
import 'dart:io' show Platform;

class LivePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    // TODO: implement createState
    return new LivePageState();
  }
}

class LivePageState extends State<LivePage> {
  BuildContext _ctx;
  static const BACKGROUND_IMAGE = 'assets/sobreHeader.jpg';

  //static const url = "https://www.riodasostras.rj.gov.br/live-app-jazz-e-blues-2019/";
  static const url = "https://appsescverao.firebaseapp.com/#/livePublic";
  WebViewController _controller;
  Size preferredSize;
  bool isFullscreen = false;
  bool isVisibilityFullscreenBtn = true;
  Timer _timer;

  Widget _buildAvatar() {
    return Container(
      width: double.infinity,
      height: 120,
      padding: EdgeInsets.fromLTRB(0, 0, 0, 0),
      child: Image.asset('assets/logoJazz.png'),
    );
  }

  Widget _header(BuildContext context) {
    var theme = Theme.of(context);
    var textTheme = theme.textTheme;
    var screenWidth = MediaQuery.of(context).size.width;

    return Stack(
      children: <Widget>[
        Container(
          child: Image.asset(
            BACKGROUND_IMAGE,
            width: screenWidth,
            height: 200,
            fit: BoxFit.cover,
          ),
        ),
        Container(
          width: screenWidth,
          height: 200,
          color: Color.fromRGBO(30, 97, 145, .7),
        ),
        Align(
          alignment: FractionalOffset.bottomCenter,
          heightFactor: 1.4,
          child: Column(
            children: <Widget>[
              _buildAvatar(),
            ],
          ),
        ),
        Positioned(
          top: 26.0,
          left: 4.0,
          child: BackButton(
            color: Colors.white,
          ),
        ),
      ],
    );
  }

  background() {
    return Container(
      width: double.infinity,
      height: double.infinity,
      decoration: BoxDecoration(
        //color: Color.fromRGBO(50, 50, 50, 1)
        image: DecorationImage(
          image: AssetImage('assets/background.png'),
          fit: BoxFit.cover,
        ),
      ),
      child: Container(
          //color: Color.fromRGBO(103, 189, 211, 0.5),
          ),
    );
  }

  appBar() {
    return SearchAppBar(
      showSearch: false,
      title: AppStrings.liveTitle,
      onKeypress: (searchString) {},
    );
  }

  List<Widget> _buildContent() {
    var l = new List<Widget>();

    //background page
    l.add(background());

    //lista
    l.add(
      Positioned(
        top: 0,
        left: 0.0,
        right: 0.0,
        bottom: 0,
        child: Scaffold(
          appBar: !isFullscreen ? appBar() : null,
          backgroundColor: Colors.transparent,
          body: GestureDetector(
            onDoubleTap: () {
              print("sad");
              setState(() {
                isVisibilityFullscreenBtn = true;
                hideFullscreenBtn();
              });
            },
            child: WebView(
              onWebViewCreated: (WebViewController webViewController) {
                _controller = webViewController;
              },
              javascriptMode: JavascriptMode.unrestricted,
              initialUrl: url,
            ),
          ),
        ),
      ),
    );

    if (Platform.isAndroid) {
      if (isVisibilityFullscreenBtn) {
        l.add(
          Positioned(
              bottom: 30,
              right: 30,
              child: Material(
                color: Color.fromRGBO(255, 255, 255, 0.5),
                borderRadius: BorderRadius.all(Radius.circular(50)),
                child: InkWell(
                    child: Container(
                      padding: EdgeInsets.fromLTRB(16, 16, 16, 16),
                      child: Icon(Icons.fullscreen),
                    ),
                    onTap: () {
                      setState(() {
                        if (!isFullscreen) {
                          isFullscreen = true;
                          SystemChrome.setEnabledSystemUIOverlays([]);
                          hideFullscreenBtn();
                        } else {
                          isFullscreen = false;
                          SystemChrome.setEnabledSystemUIOverlays(SystemUiOverlay.values);
                        }
                      });
                    }),
              )),
        );
      }
    }

    return l;
  }

  hideFullscreenBtn() async {
    _timer = new Timer(const Duration(milliseconds: 5000), () {
      setState(() {
        if (isFullscreen) isVisibilityFullscreenBtn = false;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    _ctx = context;

    return Stack(
      fit: StackFit.expand,
      children: _buildContent(),
    );
  }
}