Teso_Mobile/lib/Pages/Sub_Pages/Posts/ViewPost.dart

import 'dart:typed_data';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flare_flutter/flare_controls.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_bloc/flutter_bloc.dart';

import 'package:page_transition/page_transition.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:teso/Classes/API%20Clasess/CouponDetails.dart';
import 'package:teso/Classes/API%20Clasess/Post.dart';
import 'package:teso/Classes/API%20Clasess/PostFav.dart';
import 'package:teso/Classes/TesoUser.dart';
import 'package:teso/Pages/Sub_Pages/Posts/comment.dart';
import 'package:teso/Pages/Sub_Pages/userProfile3P.dart';
import 'package:teso/Services/video_controller_service.dart';
import 'package:teso/blocs/video_player/video_player_bloc.dart';
import 'package:teso/blocs/video_player/video_player_event.dart';
import 'package:teso/blocs/video_player/video_player_state.dart';
import 'package:teso/providers/user_provider.dart';
import 'package:teso/util/SizeConfig.dart';
import 'package:teso/util/consts.dart';
import 'package:numeral/numeral.dart';
import 'package:teso/GeneralWidgets/widgets/video_player_widget.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';

// ignore: must_be_immutable
class ViewPost extends StatefulWidget {
  Post postedAd;
  TesoUser user;
  bool friend;
  final bool play;
  Function report;

  ViewPost({
    Key key,
    this.postedAd,
    this.user,
    this.friend,
    @required this.play,
    @required this.report,
    // this.posts,
  }) : super(key: key);
  @override
  _ViewPostState createState() => _ViewPostState();
}

class _ViewPostState extends State<ViewPost> {
  bool favoured = false;
  List<CouponDetails> coupons = <CouponDetails>[];
  Uint8List imageBitmap;
  final FlareControls flareControls = FlareControls();
  bool campaignAd = false;
  int likes = 0;
  int comments = 0;
  var userDoc;
  var document;
  bool likeShow = false;
  bool dark = false;

  void sharing(Post ad) async {
    await rootBundle
        .load("assets/images/rawLogoOverlay.png")
        .then((value) => setState(() {
              imageBitmap = value.buffer.asUint8List();
            }));
    Provider.of<UserProvider>(context, listen: false).downloadVideo(
        ad.postID, ad.playbackID, ad.rendition, imageBitmap, context);
  }

  @override
  void dispose() {
    rootBundle.evict("assets/images/rawLogoOverlay.png");
    super.dispose();
  }

  void likePost(Post ad) {
    setState(() {
      likeShow = true;
    });
    SharedPreferences.getInstance().then((value) {
      String cid = value.getString("id");
      PostFav liked = new PostFav();
      liked.admirerId = cid;
      liked.countId = DateTime.now().toString() + "$cid";
      liked.timestamp = DateTime.now().toIso8601String();
      liked.postId = ad.postID;

      setState(() {
        // ad.likes.add(liked);
        likes++;
        favoured = true;
      });

      flareControls.play("like");
      Provider.of<UserProvider>(context, listen: false).addLike(liked);
    });
  }

  void dislikePost(Post ad) {
    setState(() {
      favoured = false;
      likes--;
    });
    Provider.of<UserProvider>(context, listen: false).deleteLike(ad.postID);
  }

  void commentsDialog(BuildContext context) {
    if (userDoc == null) {
      FirebaseFirestore.instance
          .collection("users")
          .doc(widget.postedAd.publisherID)
          .get()
          .then((value) {
        setState(() {
          userDoc = value.data();
        });
      });
    } else {
      showModalBottomSheet(
        context: context,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.vertical(top: Radius.circular(20.0)),
        ),
        builder: (BuildContext bc) {
          return ClipRRect(
            borderRadius: BorderRadius.only(
              topLeft: Radius.circular(20.0),
              topRight: Radius.circular(20.0),
            ),
            child: CommentSection(
                postedAd: widget.postedAd,
                user: TesoUser(
                  username: userDoc["username"],
                  userGUID: userDoc["id"],
                )),
          );
        },
      );
    }
  }

  Future<void> getCampaignCoupons(String campaign) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    Map<String, String> requestHeaders = {
      'Content-type': 'application/json',
      'Authorization': prefs.getString('tokensTeso')
    };
    try {
      var register2 = serverLocation + 'coupons/campaign_coupons';
      var client1 = await http.post(
        Uri.parse(register2),
        headers: requestHeaders,
        body: json.encode(campaign),
      );
      if (client1.statusCode == 200) {
        var details = jsonDecode(client1.body);
        setState(() {
          coupons = List<CouponDetails>.from(
              details.map((model) => CouponDetails.fromJSON(model)).toList());
          // coupons.removeWhere(
          //     (element) => element.expiration.isAfter(DateTime.now()));
        });
      }
    } catch (e) {
      print(e);
    }
  }

  @override
  void initState() {
    campaignAd = false;
    _getDocuments();
    _likedListen();
    _commentsListen();
    FirebaseFirestore.instance
        .collection("users")
        .doc(widget.postedAd.publisherID)
        .get()
        .then((value) {
      if (mounted)
        setState(() {
          userDoc = value.data();
        });
    });
    SharedPreferences.getInstance().then((value) =>
        value.getString("theme") == "light" ? dark = false : dark = true);
    super.initState();
  }

  _getDocuments() {
    FirebaseFirestore.instance
        .collection("posts")
        .doc(widget.postedAd.postID)
        .get()
        .then((value) {
      if (mounted)
        setState(() {
          document = value.data();
          if (document != null) {
            if (document["campaignId"] != null) {
              campaignAd = true;
              getCampaignCoupons(document["campaignId"]);
            }
          }
        });
    });
  }

  _likedListen() {
    SharedPreferences.getInstance().then((value) {
      String cid = value.getString("id");
      FirebaseFirestore.instance
          .collection("posts")
          .doc(widget.postedAd.postID)
          .collection("likes")
          .snapshots()
          .listen((event) {
        if (mounted) {
          setState(() {
            favoured =
                event.docs.any((element) => element.data()["admirerID"] == cid);
            likes = event.docs.length;
          });
        }
      });
    });
  }

  _commentsListen() {
    FirebaseFirestore.instance
        .collection("posts")
        .doc(widget.postedAd.postID)
        .collection("comments")
        .snapshots()
        .listen((event) {
      if (mounted) {
        setState(() {
          comments = event.docs.length;
        });
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    SizeConfig().init(context);
    return Scaffold(
      body: Container(
        width: MediaQuery.of(context).size.width,
        height: MediaQuery.of(context).size.height,
        color: Colors.black,
        child: Stack(
          children: [
            _buildVideoPlayer(widget.postedAd),
            Align(
              alignment: Alignment.bottomRight,
              child: Container(
                margin: EdgeInsets.only(
                  right: 10,
                  bottom: 30,
                ),
                width: 50,
                height: MediaQuery.of(context).size.width * 0.73,
                child: Column(
                  children: [
                    _publisherWidget(context),
                    SizedBox(
                      height: 20,
                    ),
                    _favoriteWidget(context),
                    SizedBox(
                      height: 20,
                    ),
                    _commentWidget(context),
                    SizedBox(
                      height: 20,
                    ),
                    Container(
                      height: 30,
                      child: InkWell(
                        onTap: () => moreDialog(context, widget.postedAd),
                        child: Icon(
                          Icons.more_horiz,
                          size: 30,
                          color: Colors.white,
                        ),
                      ),
                    ),
                  ],
                ),
              ),
            ),
            _nameDescription(context),
          ],
        ),
      ),
    );
  }

  Widget _buildVideoPlayer(Post ad) {
    return BlocProvider<VideoPlayerBloc>(
      create: (context) => VideoPlayerBloc(
          RepositoryProvider.of<VideoControllerService>(context))
        ..add(VideoSelectedEvent(ad)),
      child: BlocBuilder<VideoPlayerBloc, VideoPlayerState>(
        builder: (context, state) {
          return Container(child: _getPlayer(context, state, ad));
        },
      ),
    );
  }

  Widget _getPlayer(BuildContext context, VideoPlayerState state, Post ad) {
    // final screenWidth = MediaQuery.of(context).size.width;
    // final containerHeight = screenWidth / ASPECT_RATIO;
    final containerHeight = MediaQuery.of(context).size.height;
    if (state is VideoPlayerStateLoaded) {
      return GestureDetector(
        onDoubleTap: () {
          if (campaignAd) {
            if (favoured) {
              return null;
            } else {
              likePost(ad);
            }
          } else {
            if (favoured) {
              dislikePost(ad);
            } else {
              likePost(ad);
            }
          }
        },
        child: Stack(
          children: [
            VideoPlayerWidget(
              key: Key(state.video.playbackID),
              controller: state.controller,
              ad: ad,
              play: widget.play,
              details: coupons,
            ),
            AnimatedOpacity(
              opacity: likeShow ? 1 : 0,
              duration: Duration(seconds: 2),
              onEnd: () {
                setState(() {
                  likeShow = false;
                });
              },
              child: Container(
                width: double.infinity,
                height: MediaQuery.of(context).size.height,
                child: Center(
                  child: Image.asset("assets/lovw.gif"),
                ),
              ),
            ),
          ],
        ),
      );
    }

    if (state is VideoPlayerStateLoading) {
      return Container();
    }

    if (state is VideoPlayerStateError) {
      return Container(
        height: containerHeight,
        color: Colors.black,
        child: Center(
          child: Text(state.message),
        ),
      );
    }

    return Container();
  }

  Widget _nameDescription(BuildContext context) {
    return Align(
      alignment: Alignment.bottomLeft,
      child: Container(
        margin: EdgeInsets.symmetric(
          horizontal: 10,
          vertical: MediaQuery.of(context).size.height * 0.05,
        ),
        child: new Wrap(
          direction: Axis.vertical,
          children: [
            new RichText(
              maxLines: 5,
              text: TextSpan(
                text: userDoc != null ? "@" + userDoc["username"] : "",
                style: TextStyle(
                  color: Colors.white,
                  fontSize: SizeConfig.safeBlockHorizontal * 4.3,
                  fontWeight: FontWeight.bold,
                ),
              ),
            ),
            SizedBox(height: 5),
            Container(
              margin: EdgeInsets.only(bottom: 20),
              width: MediaQuery.of(context).size.width * 0.7,
              child: Text(
                document != null
                    ? document["title"] != null
                        ? document["title"]
                        : ""
                    : "",
                style: TextStyle(
                  color: Colors.white,
                  fontSize: SizeConfig.safeBlockHorizontal * 4.3,
                  height: 1.5,
                ),
                maxLines: 4,
                overflow: TextOverflow.ellipsis,
                textDirection: TextDirection.rtl,
                textAlign: TextAlign.left,
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _publisherWidget(BuildContext context) {
    return Container(
      width: 40,
      height: 40,
      decoration: BoxDecoration(
        shape: BoxShape.circle,
        border: Border.all(
          color: Colors.black,
          width: 1,
        ),
      ),
      child: ClipRRect(
        borderRadius: BorderRadius.only(
          topLeft: Radius.circular(90.0),
          topRight: Radius.circular(90.0),
          bottomLeft: Radius.circular(90),
          bottomRight: Radius.circular(90),
        ),
        child: InkWell(
          onTap: widget.postedAd.publisherID != null
              ? () => Navigator.pushReplacement(
                    context,
                    PageTransition(
                      child: UserProfileThirdPerson(
                        user: new TesoUser(
                          username: userDoc["username"],
                          userGUID: userDoc["id"],
                          firstname: userDoc["firstname"],
                          lastname: userDoc["surname"],
                        ),
                      ),
                      type: PageTransitionType.fade,
                    ),
                  )
              : null,
          child: CachedNetworkImage(
            imageUrl:
                serverLocation + "api/pulldp/" + widget.postedAd.publisherID,
            imageBuilder: (context, imageProvider) => FadeInImage(
              height: 90,
              width: 90,
              fit: BoxFit.fill,
              image: imageProvider,
              placeholder: AssetImage("assets/images/tesoDP/dp1.png"),
            ),
          ),
        ),
      ),
    );
  }

  Widget _favoriteWidget(BuildContext context) {
    return Container(
      height: 50,
      child: InkWell(
        onTap: () {
          if (campaignAd) {
            if (favoured) {
              return null;
            } else {
              likePost(widget.postedAd);
            }
          } else {
            if (favoured) {
              dislikePost(widget.postedAd);
            } else {
              likePost(widget.postedAd);
            }
          }
        },
        child: new Wrap(
          direction: Axis.vertical,
          children: [
            Container(
              width: 50,
              height: 30,
              child: Center(
                child: Icon(
                  Icons.favorite,
                  size: 30,
                  color: favoured ? Colors.red : Colors.white,
                ),
              ),
            ),
            Container(
              height: 20,
              width: 50,
              child: Center(
                child: Text(
                  Numeral(likes).value().toString(),
                  style: TextStyle(
                    fontWeight: FontWeight.bold,
                    color: Colors.white,
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _commentWidget(BuildContext context) {
    return Container(
      height: 50,
      child: InkWell(
        onTap: () => commentsDialog(context),
        child: new Wrap(
          direction: Axis.vertical,
          children: [
            Container(
              width: 50,
              height: 30,
              child: Center(
                child: Icon(
                  Icons.comment,
                  size: 30,
                  color: Colors.white,
                ),
              ),
            ),
            Container(
              height: 20,
              width: 50,
              child: Center(
                child: Text(
                  Numeral(comments).value().toString(),
                  style: TextStyle(
                    fontWeight: FontWeight.bold,
                    color: Colors.white,
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }

  void moreDialog(BuildContext context, Post ad) {
    showModalBottomSheet(
      context: context,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(30.0)),
      ),
      builder: (BuildContext bc) {
        return Container(
          child: SingleChildScrollView(
            scrollDirection: Axis.vertical,
            child: new Wrap(
              children: <Widget>[
                new Container(
                  margin: EdgeInsets.symmetric(
                    vertical: 15.0,
                  ),
                  child: Center(
                    child: Padding(
                      padding: const EdgeInsets.symmetric(horizontal: 20.0),
                      child: Container(
                        width: 50,
                        height: 4,
                        color: Colors.grey,
                      ),
                    ),
                  ),
                ),
                buildTop3(context, ad),
                new Container(
                  width: MediaQuery.of(context).size.width,
                  height: 40,
                  margin: EdgeInsets.symmetric(vertical: 20.0, horizontal: 15),
                  decoration: BoxDecoration(
                      color: !dark ? Colors.grey[200] : Colors.white12,
                      borderRadius: BorderRadius.circular(5)),
                  child: new Center(
                    child: Text(
                      "Why you're seeing this post",
                      textAlign: TextAlign.center,
                      style: TextStyle(
                        color: !dark ? Colors.black : Colors.white,
                      ),
                    ),
                  ),
                ),
                //  bottomButtons(context, friends),
              ],
            ),
          ),
        );
      },
    );
  }

  buildTop3(BuildContext context, Post ad) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceAround,
      children: [
        GestureDetector(
          onTap: () => sharing(ad),
          child: Container(
            width: SizeConfig.blockSizeHorizontal * 30,
            height: SizeConfig.blockSizeHorizontal * 20,
            decoration: BoxDecoration(
              borderRadius: BorderRadius.all(
                Radius.circular(
                  10,
                ),
              ),
              color: !dark ? Colors.grey[200] : Colors.white12,
            ),
            alignment: Alignment.center,
            child: Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: [
                  Icon(Icons.share),
                  Text(
                    "Share",
                  ),
                ],
              ),
            ),
          ),
        ),
        GestureDetector(
          onTap: () => reportDialog(context),
          child: Container(
            width: SizeConfig.blockSizeHorizontal * 30,
            height: SizeConfig.blockSizeHorizontal * 20,
            decoration: BoxDecoration(
              borderRadius: BorderRadius.all(
                Radius.circular(
                  10,
                ),
              ),
              color: !dark ? Colors.grey[200] : Colors.white12,
            ),
            alignment: Alignment.center,
            child: Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.spaceAround,
                children: [
                  Icon(
                    Icons.report_problem,
                    color: Colors.red[900],
                  ),
                  Text(
                    "Report",
                  ),
                ],
              ),
            ),
          ),
        ),
      ],
    );
  }

  flagContent(level) {
    Provider.of<UserProvider>(context, listen: false)
        .flagPost(widget.postedAd, level);
    Navigator.pop(context);
    widget.report(widget.postedAd);
    this.dispose();
  }

  bottomButtons(BuildContext context, friends) {
    return new Container(
        width: MediaQuery.of(context).size.width,
        margin: EdgeInsets.symmetric(vertical: 5.0, horizontal: 15),
        child: Column(
          children: [
            new Container(
              width: MediaQuery.of(context).size.width,
              child: new Center(
                child: ElevatedButton(
                  style: ElevatedButton.styleFrom(
                    primary: Colors.grey[200],
                    shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.all(
                        Radius.circular(5.0),
                      ),
                    ),
                  ),
                  onPressed: () => Navigator.pop(context),
                  child: Container(
                      width: MediaQuery.of(context).size.width,
                      child: Text(
                        "Hide",
                        textAlign: TextAlign.center,
                      )),
                ),
              ),
            ),
            friends
                ? new Container(
                    width: MediaQuery.of(context).size.width,
                    child: new Center(
                      child: ElevatedButton(
                        style: ElevatedButton.styleFrom(
                          primary: Colors.grey[300],
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.all(
                              Radius.circular(5.0),
                            ),
                          ),
                        ),
                        onPressed: () => Navigator.pop(context),
                        child: Container(
                            width: MediaQuery.of(context).size.width,
                            child: Text(
                              "Unfrend",
                              textAlign: TextAlign.center,
                            )),
                      ),
                    ),
                  )
                : new Container(
                    width: MediaQuery.of(context).size.width,
                    child: new Center(
                      child: ElevatedButton(
                        style: ElevatedButton.styleFrom(
                          primary: Colors.grey[300],
                          shape: RoundedRectangleBorder(
                            borderRadius: BorderRadius.all(
                              Radius.circular(5.0),
                            ),
                          ),
                        ),
                        onPressed: () => Navigator.pop(context),
                        child: Container(
                            width: MediaQuery.of(context).size.width,
                            child: Text(
                              "Add Friend",
                              textAlign: TextAlign.center,
                            )),
                      ),
                    ),
                  )
          ],
        ));
  }

  void reportDialog(BuildContext context) {
    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      enableDrag: true,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(30.0)),
      ),
      builder: (BuildContext bc) {
        return Container(
          height: MediaQuery.of(context).size.height * 0.95,
          child: Column(
            children: [
              new Container(
                margin: EdgeInsets.symmetric(
                  vertical: 15.0,
                ),
                child: Center(
                  child: Padding(
                    padding: const EdgeInsets.symmetric(horizontal: 20.0),
                    child: Container(
                      width: 50,
                      height: 4,
                      color: Colors.grey,
                    ),
                  ),
                ),
              ),
              Container(
                child: Center(
                  child: Text(
                    "Report",
                    style: TextStyle(
                      fontSize: SizeConfig.blockSizeHorizontal * 3.5,
                      fontWeight: FontWeight.w800,
                    ),
                  ),
                ),
              ),
              Divider(),
              Container(
                padding: EdgeInsets.symmetric(horizontal: 10),
                child: Text(
                  "Why are you reporting this post?",
                  textAlign: TextAlign.left,
                  style: TextStyle(
                    fontSize: SizeConfig.blockSizeHorizontal * 3.5,
                    fontWeight: FontWeight.w800,
                  ),
                ),
              ),
              SizedBox(
                height: 5,
              ),
              Container(
                padding: EdgeInsets.symmetric(horizontal: 15),
                child: Center(
                  child: Text(
                    "Your report would be handled as soon as possible. However if someone is in immediate danger, call the local emergency services - don't wait.",
                    style: TextStyle(
                      fontSize: SizeConfig.blockSizeHorizontal * 3.5,
                      fontWeight: FontWeight.w400,
                    ),
                  ),
                ),
              ),
              Divider(),
              Container(
                height: MediaQuery.of(context).size.height * 0.7,
                child: new ListView(
                  scrollDirection: Axis.vertical,
                  children: <Widget>[
                    ListTile(
                      title: Text("It's a spam"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(1),
                    ),
                    ListTile(
                      title: Text("Nudity or sexual activity"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(2),
                    ),
                    ListTile(
                      title: Text("I just don't like it"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(3),
                    ),
                    ListTile(
                      title: Text("Hate speech or symbols"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(4),
                    ),
                    ListTile(
                      title: Text("False information"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(5),
                    ),
                    ListTile(
                      title: Text("Bullying harassment"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(6),
                    ),
                    ListTile(
                      title: Text("Violence or dangerous organisations"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(7),
                    ),
                    ListTile(
                      title: Text("Scam or fraud"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(8),
                    ),
                    ListTile(
                      title: Text("Intellectual property violation"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(9),
                    ),
                    ListTile(
                      title: Text("Sale of illegal or regulated goods"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(10),
                    ),
                    ListTile(
                      title: Text("Suicide or self-injury"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(11),
                    ),
                    ListTile(
                      title: Text("Eating disorders"),
                      trailing: Icon(Icons.arrow_forward_ios),
                      onTap: () => flagContent(12),
                    ),
                  ],
                ),
              ),
            ],
          ),
        );
      },
    );
  }
}