workouttest_app/lib/widgets/menu_page_widget.dart

import 'dart:ui';

import 'package:aitrainer_app/bloc/menu/menu_bloc.dart';
import 'package:aitrainer_app/localization/app_localization.dart';
import 'package:aitrainer_app/model/cache.dart';
import 'package:aitrainer_app/model/workout_menu_tree.dart';
import 'package:aitrainer_app/util/trans.dart';
import 'package:badges/badges.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/painting.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:google_fonts/google_fonts.dart';

import 'menu_info_widget.dart';

// ignore: must_be_immutable
class MenuPageWidget extends StatelessWidget with Trans {
  int parent;

  MenuPageWidget({this.parent});

  @override
  Widget build(BuildContext context) {
    MenuBloc menuBloc = BlocProvider.of<MenuBloc>(context);
    setContext(context);

    return CustomScrollView(scrollDirection: Axis.vertical, slivers: <Widget>[buildMenuColumn(parent, context, menuBloc)]);
  }

  SliverList buildMenuColumn(int parent, BuildContext context, MenuBloc menuBloc) {
    final List<Widget> _columnChildren = List();

    if (context != null) {
      menuBloc.setContext(context);
      menuBloc.setMenuInfo();

      Widget info = MenuInfoWidget(
        title: menuBloc.infoTitle,
        titleSize: 18,
        titleWeight: FontWeight.bold,
        titleColor: Colors.orangeAccent,
        text: menuBloc.infoText,
        textSize: 13,
        textColor: Colors.yellowAccent,
        text2: menuBloc.infoText2,
        text3: menuBloc.infoText3,
        link: menuBloc.infoLink,
        bloc: menuBloc,
      );
      _columnChildren.add(info);
    }

    menuBloc.menuTreeRepository.getBranch(menuBloc.parent).forEach((treeName, value) {
      WorkoutMenuTree workoutTree = value as WorkoutMenuTree;
      _columnChildren.add(Container(
          padding: EdgeInsets.only(top: 16.0),
          child: Center(
              child: Stack(alignment: Alignment.bottomLeft,
                  //clipBehavior: Clip.antiAliasWithSaveLayer,
                  children: [
                FlatButton(
                  child: badgedIcon(workoutTree),
                  padding: EdgeInsets.only(left: 0.0, bottom: 0),
                  shape: getShape(workoutTree),
                  onPressed: () => menuClick(workoutTree, menuBloc, context),
                ),
                Positioned(
                  top: workoutTree.name.length > 20 ? 130 : 145,
                  left: 5,
                  child: Container(
                    height: 300,
                    width: 280,
                    child: InkWell(
                      onTap: () => menuClick(workoutTree, menuBloc, context),
                      child: Text(
                        " " + workoutTree.name,
                        maxLines: 2,
                        style: GoogleFonts.archivoBlack(
                          color: workoutTree.color,
                          fontSize: workoutTree.fontSize,
                        ),
                      ),
                      highlightColor: workoutTree.color,
                    ),
                    color: Colors.transparent,
                  ),
                ),
              ]))));
    });

    SliverList sliverList = SliverList(delegate: SliverChildListDelegate(_columnChildren));

    return sliverList;
  }

  void menuClick(WorkoutMenuTree workoutTree, MenuBloc menuBloc, BuildContext context) {
    print("Hi!, Menu clicked " + workoutTree.id.toString());
    if (workoutTree.child == false) {
      menuBloc.add(MenuTreeDown(item: workoutTree, parent: workoutTree.id));
    } else {
      menuBloc.add(MenuClickExercise(exerciseTypeId: workoutTree.id));
      if (Cache().userLoggedIn == null) {
        Scaffold.of(context).showSnackBar(SnackBar(
            backgroundColor: Colors.orange,
            content: Text(AppLocalizations.of(context).translate('Please log in'), style: TextStyle(color: Colors.white))));
      } else {
        if (workoutTree.exerciseType.name == "Custom" && Cache().userLoggedIn.admin == 1) {
          Navigator.of(context).pushNamed('exerciseCustomPage', arguments: workoutTree.exerciseType);
        } else {
          Navigator.of(context).pushNamed('exerciseNewPage', arguments: workoutTree.exerciseType);
        }
      }
    }
  }

  dynamic getShape(WorkoutMenuTree workoutTree) {
    bool base = workoutTree.base;
    dynamic returnCode = (base == true)
        ? RoundedRectangleBorder(
            side: BorderSide(width: 4, color: Colors.orangeAccent),
          )
        : null;
    return returnCode;
  }

  dynamic _getButtonImage(WorkoutMenuTree workoutTree) {
    dynamic image;
    try {
      image = Image.asset(
        workoutTree.imageName,
        height: 180,
        errorBuilder: (context, error, stackTrace) {
          String url = Cache.mediaUrl + 'images/' + workoutTree.imageName.substring(11);
          Widget image = FadeInImage.assetNetwork(
            placeholder: 'asset/image/dots.gif',
            image: url,
            height: 180,
          );
          return image;
        },
      );
    } on Exception catch (_) {
      String url = Cache.mediaUrl + '/images/' + workoutTree.imageName;
      image = FadeInImage.assetNetwork(
        placeholder: 'asset/image/dots.gif',
        image: url,
        height: 180,
      );
    }

    return image;
  }

  Widget badgedIcon(WorkoutMenuTree workoutMenuTree) {
    String badgeKey = workoutMenuTree.nameEnglish;
    bool show = Cache().getBadges()[badgeKey] != null;
    int counter = Cache().getBadges()[badgeKey] != null ? Cache().getBadges()[badgeKey] : 0;
    return Badge(
      padding: EdgeInsets.all(8),
      position: BadgePosition.topEnd(top: 3, end: 3),
      animationDuration: Duration(milliseconds: 500),
      animationType: BadgeAnimationType.slide,
      badgeColor: Colors.red,
      showBadge: show,
      badgeContent: Text(counter.toString(),
          style: TextStyle(
            color: Colors.white,
            fontSize: 16,
          )),
      child: _getButtonImage(workoutMenuTree),
    );
  }
}