Class FeedCard

class FeedCardView extends StatefulWidget {
  final PostModel post;
  final UserModel user;
  final UserModel loggedUser;
  final double elevation;
  final double topLeft;
  final double topRight;
  final double bottomRight;
  final double bottomLeft;
  final Color bgColor;
  final bool otherUserFeed;
  final double offsetListViewPosition;

  FeedCardView(
    BuildContext context, {
    Key key,
    this.post,
    this.user,
    this.loggedUser,
    this.elevation = 0.0,
    this.topLeft = 5.0,
    this.topRight = 5.0,
    this.bottomLeft = 5.0,
    this.bottomRight = 5.0,
    this.bgColor = Colors.white54,
    this.otherUserFeed = false,
    this.offsetListViewPosition,
  }) : super(key: key);

  @override
  _FeedCardViewState createState() => _FeedCardViewState();
}

class _FeedCardViewState extends State<FeedCardView> {
  bool rocketIt;
  bool userIsUserLogged;

  @override
  void initState() {
    super.initState();
    rocketIt = widget.post.rockedIt ?? false;
    userIsUserLogged = widget.post.userData.userIsUserLogged;
  }

  @override
  Widget build(BuildContext context) {
    return Card(
      clipBehavior: Clip.antiAliasWithSaveLayer,
      child: Padding(
        padding: const EdgeInsets.only(top: 8, bottom: 2),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: <Widget>[
            _buildHeadPostCard(context),
            Offstage(
              offstage: widget.post.postPhotos.isEmpty,
              child: InkWell(
                onTap: () {
                  _detailPost(context, widget.post);
                },
                child: buildPicturePost(widget.post),
              ),
            ),
            Offstage(
              offstage: widget.post.getMessage().isEmpty,
              child: Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  Container(
                    height: 1,
                    width: double.infinity,
                    color: Color(vestterColorBlackCyan).withOpacity(0.08),
                  ),
                  InkWell(
                    onTap: () {
                      _detailPost(context, widget.post);
                    },
                    child: Padding(
                      padding: const EdgeInsets.symmetric(vertical: 12.0, horizontal: 8.0),
                      child: Text(
                        widget.post.getMessage(limited: 100),
                      ),
                    ),
                  ),
                  Container(
                    height: 1,
                    width: double.infinity,
                    color: Color(vestterColorBlackCyan).withOpacity(0.08),
                  ),
                ],
              ),
            ),
            Row(mainAxisAlignment: MainAxisAlignment.spaceBetween, children: <Widget>[
              Expanded(
                child: InkWell(
                  child: Container(
                    height: 48,
                    child: Center(
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: <Widget>[
                          widget.post.rockedIt || rocketIt
                              ? Image.asset('assets/images/icone-rock-active.png', width: 20.0)
                              : Image.asset('assets/images/icone-rock.png', width: 20.0),
                          Padding(
                            padding: const EdgeInsets.only(left: 8.0),
                            child: Text(
                              AppLocalizations.of(context).translate("feed_post_curtir"),
                              textAlign: TextAlign.center,
                              style: TextStyle(
                                color: widget.post.rockedIt || rocketIt ? Colors.orange : Color(vestterColorBlack),
                                fontWeight: FontWeight.w600,
                              ),
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                  onTap: () {
                    setState(() {
                      rocketIt = !rocketIt;
                    });
                    rockItUnRockIt(context, widget.post);
                  },
                ),
              ),
              Expanded(
                child: InkWell(
                  child: Container(
                    height: 48,
                    child: Center(
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: <Widget>[
                          Image.asset('assets/images/icone-comentario.png', width: 20.0),
                          Padding(
                            padding: const EdgeInsets.only(left: 8.0),
                            child: Text(
                              AppLocalizations.of(context).translate("feed_post_comentar"),
                              textAlign: TextAlign.center,
                              style: TextStyle(
                                color: Color(vestterColorBlack),
                                fontWeight: FontWeight.w600,
                              ),
                            ),
                          ),
                        ],
                      ),
                    ),
                  ),
                  onTap: () {
                    _detailPost(context, widget.post);
                  },
                ),
              ),
            ])
          ],
        ),
      ),
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.only(
          topLeft: Radius.circular(0.0),
          topRight: Radius.circular(0.0),
          bottomLeft: Radius.circular(0.0),
          bottomRight: Radius.circular(0.0),
        ),
      ),
      elevation: widget.elevation,
      margin: const EdgeInsets.only(top: 10),
    );
  }

  buildProfilePicture(BuildContext context, post) {
    if (post.userData.profilePhoto == null || post.userData.profilePhoto.isEmpty == true) {
      return circularAssetImage(
        'assets/images/no-photo.png',
        MediaQuery.of(context).size.width * 0.095,
        MediaQuery.of(context).size.width * 0.095,
      );
    }
    return CachedNetworkImage(
      imageUrl: post.userData.profilePhoto,
      imageBuilder: (context, imageProvider) => Container(
        height: MediaQuery.of(context).size.width * 0.095,
        width: MediaQuery.of(context).size.width * 0.095,
        decoration: BoxDecoration(
          shape: BoxShape.circle,
          image: DecorationImage(image: imageProvider, fit: BoxFit.cover),
        ),
      ),
      fadeInDuration: const Duration(milliseconds: 1),
      fadeOutDuration: const Duration(milliseconds: 1),
      errorWidget: (context, url, error) => Image.asset(
        'assets/images/logo_vestter.png',
        width: 48,
      ),
    );
  }

  buildPicturePost(PostModel post) {
    try {
      if (post.postPhotos != null && post.postPhotos.length > 0) {
        return PhotosCarousel(photos: post.postPhotos);
      } else {
        return Container();
      }
    } catch (e) {
      return Container();
    }
  }

  Widget _buildAlertMarker(BuildContext context, PostModel post) {
    if (post.isAlert() == true) {
      return Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: <Widget>[
          Image.asset('assets/images/icone-emergencia.png', width: MediaQuery.of(context).size.width * 0.050),
          SizedBox(width: 4),
          Padding(
            padding: const EdgeInsets.only(top: 4.0),
            child: Text(
              AppLocalizations.of(context).translate("feed_post_alerta_label"),
              style: TextStyle(color: Color(0xFFFff681e), fontSize: MediaQuery.of(context).size.width * 0.035),
            ),
          ),
        ],
      );
    } else {
      return Container();
    }
  }

  _detailPost(BuildContext context, PostModel post) {
    // Recuperando o Controller do Feed
    FeedController _feedController = GetIt.I<FeedController>();
    _feedController.modelDetail = post;

    /// Método para chamar uma tela sobrepondo a TabBar
    showCupertinoDialog(context: context, builder: (_) => CommentPostPage());
  }

  /// Método para pegar os detalhes do author do post
  _detailOtherUser(BuildContext context, PostModel post) async {
    UserModel _authorPost = post.userData;
    NavigationController _navigationController = GetIt.I<NavigationController>();
    _navigationController.changeFeedIsShowingSubPage();
    Navigator.push(
      context,
      CupertinoPageRoute(
        builder: (_) => ProfileOtherUserPage(otherUser: _authorPost),
      ),
    );
  }

  /// Método para curtir ou descurtir a postagem
  /// Param:
  ///     context -> Contexto
  ///     post -> Instância do PostModel
  Future rockItUnRockIt(BuildContext context, PostModel post) async {
    // Recuperando o Controller do Usuario
    UserController _userController = GetIt.I<UserController>();

    // Recuperando o Controller do Feed
    FeedController _feedController = GetIt.I<FeedController>();
    try {
      _feedController.rockItUnRockIt(_userController.model, post);
    } catch (e) {
      DebugPrint.erro("Erro ao executar o rockIt no CardView: $e");
    }
    return null;
  }

// Método para mostrar o modal de detalhamento/exclusão
  _showModal(BuildContext context, PostModel post) {
    // Recuperando o Controller do Usuario
    UserController _usuarioController = GetIt.I<UserController>();

    // Recuperando o Controller do Feed
    FeedController _feedController = GetIt.I<FeedController>();
    showModalBottomSheet(
      backgroundColor: Colors.transparent, // Removendo a cor de background
      context: context,
      builder: (BuildContext bc) {
        return Padding(
          padding: const EdgeInsets.all(4.0),
          child: Container(
            child: Padding(
              padding: const EdgeInsets.all(8.0),
              child: Wrap(
                children: <Widget>[
                  Container(
                    width: double.infinity,
                    decoration: BoxDecoration(
                      color: Colors.grey[800],
                      borderRadius: BorderRadius.all(Radius.circular(8)),
                    ),
                    child: Column(
                      children: <Widget>[
                        InkWell(
                          onTap: () {
                            // Setando o post que será editado no controller
                            _feedController.model = post;
                            Navigator.pushReplacement(
                              context,
                              MaterialPageRoute(
                                builder: (context) => NewPostPage(),
                              ),
                            );
                          },
                          child: Container(
                            width: double.infinity,
                            padding: const EdgeInsets.symmetric(vertical: 12.0),
                            child: Center(
                              child: Text(
                                AppLocalizations.of(context).translate("feed_post_editar_label"),
                                style: TextStyle(color: Colors.blue),
                              ),
                            ),
                          ),
                        ),
                        Divider(height: 1, color: Colors.white54),
                        InkWell(
                          onTap: () {
                            Navigator.pop(context);
                            showDialog(
                                context: context,
                                builder: (BuildContext context) {
                                  return AlertDialog(
                                      title: Text(
                                        AppLocalizations.of(context).translate("feed_card_confirmar_exclusao_titulo"),
                                      ),
                                      content: null,
                                      actions: [
                                        FlatButton(
                                          onPressed: () {
                                            Navigator.pop(context);
                                          },
                                          child: Text(
                                            AppLocalizations.of(context)
                                                .translate("feed_card_confirmar_exclusao_cancelar"),
                                          ),
                                        ),
                                        FlatButton(
                                          onPressed: () {
                                            Navigator.pop(context);
                                            _feedController.delete(_usuarioController.model, post);
                                          },
                                          child: Text(
                                            AppLocalizations.of(context).translate("feed_card_confirmar_exclusao_ok"),
                                          ),
                                        )
                                      ]);
                                });
                          },
                          child: Container(
                            width: double.infinity,
                            padding: const EdgeInsets.symmetric(vertical: 12.0),
                            child: Center(
                              child: Text(
                                AppLocalizations.of(context).translate("feed_post_delete_label"),
                                style: TextStyle(color: Colors.red),
                              ),
                            ),
                          ),
                        ),
                      ],
                    ),
                  ),
                  Padding(
                    padding: EdgeInsets.only(top: 10.0, bottom: heightBottomNavigationBar),
                    child: InkWell(
                      onTap: () {
                        Navigator.pop(context);
                      },
                      child: Container(
                        width: double.infinity,
                        decoration: BoxDecoration(
                          color: Colors.grey[850],
                          borderRadius: BorderRadius.all(
                            Radius.circular(8),
                          ),
                        ),
                        child: Padding(
                          padding: const EdgeInsets.symmetric(vertical: 12.0),
                          child: Center(
                            child: Text(
                              AppLocalizations.of(context).translate("feed_post_cancelar_label"),
                              style: TextStyle(
                                color: Colors.blue,
                                fontWeight: FontWeight.bold,
                              ),
                            ),
                          ),
                        ),
                      ),
                    ),
                  )
                ],
              ),
            ),
          ),
        );
      },
    );
  }

  /// Método para construir a área do cabeçalho do card do Post
  Widget _buildHeadPostCard(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8, left: 8, right: 8),
      child: Row(
        mainAxisSize: MainAxisSize.max,
        mainAxisAlignment: MainAxisAlignment.start,
        children: <Widget>[
          InkWell(
            onTap: userIsUserLogged || widget.user == widget.loggedUser
                ? null
                : () {
                    _detailOtherUser(context, widget.post);
                  },
            child: buildProfilePicture(context, widget.post),
          ),
          SizedBox(
            width: 10,
          ),
          Expanded(
            child: Column(
              // Coluna dos dados do autor do Post
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: <Widget>[
                    Expanded(
                      child: InkWell(
                        onTap: userIsUserLogged || widget.user == widget.loggedUser
                            ? null
                            : () {
                                _detailOtherUser(context, widget.post);
                              },
                        child: Text(
                          widget.post.userData.getName(),
                          style: TextStyle(
                              color: widget.post.isAlert() == false ? Color(vestterColorBlackCyan) : Color(0xFFff681e),
                              fontWeight: widget.post.isAlert() == false ? FontWeight.normal : FontWeight.bold,
                              fontSize: 18),
                        ),
                      ),
                    ),
                    _buildAlertMarker(context, widget.post),
                    SizedBox(width: 4),
                    widget.post.user == widget.user.pk
                        ? InkWell(
                            onTap: () {
                              _showModal(context, widget.post);
                            },
                            child: Icon(Icons.more_horiz),
                          )
                        : Container()
                  ],
                ),
                Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: <Widget>[
                    Row(
                      children: <Widget>[
                        Icon(
                          Icons.navigation,
                          size: MediaQuery.of(context).size.width * .04,
                          color: Color(vestterColorBlackCyan).withOpacity(0.5),
                        ),
                        SizedBox(width: 4),
                        Container(
                          width: MediaQuery.of(context).size.width * 0.53,
                          child: Text(
                            widget.post.getLocationDescription(),
                            softWrap: true,
                            textAlign: TextAlign.left,
                            style: TextStyle(
                                color: Color(vestterColorBlackCyan).withOpacity(0.5),
                                fontSize: Util.getProportionScreenWidth(
                                  context,
                                  0.028,
                                )),
                          ),
                        ),
                      ],
                    ),
                    Expanded(
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.end,
                        children: <Widget>[
                          Text(
                            calcularTempoPostagem(widget.post.date),
                            textAlign: TextAlign.right,
                            style: TextStyle(
                              color: Color(vestterColorBlackCyan).withOpacity(0.5),
                            ),
                          ),
                          SizedBox(width: 4),
                          Image.asset(
                            'assets/images/tab-checkin.png',
                            width: 12,
                            color: Color(vestterColorBlackCyan).withOpacity(0.5),
                          ),
                        ],
                      ),
                    ),
                  ],
                )
              ],
            ),
          ),
        ],
      ),
    );
  }
}