workouttest_app/lib/view/exercise_log_page.dart

import 'dart:collection';
import 'package:intl/intl.dart';
import 'package:aitrainer_app/localization/app_language.dart';
import 'package:aitrainer_app/model/cache.dart';
import 'package:aitrainer_app/model/exercise.dart';
import 'package:aitrainer_app/model/exercise_type.dart';
import 'package:aitrainer_app/repository/exercise_repository.dart';
import 'package:aitrainer_app/treeview/tree_view.dart';
import 'package:aitrainer_app/util/common.dart';
import 'package:aitrainer_app/util/trans.dart';
import 'package:aitrainer_app/widgets/app_bar_common.dart';
import 'package:flutter/material.dart';
import 'package:aitrainer_app/widgets/treeview_parent_widget.dart';

class ExerciseLogPage extends StatefulWidget {
  @override
  _ExerciseLogPage createState() => _ExerciseLogPage();
}

class _ExerciseLogPage extends State<ExerciseLogPage> with Trans, Common {
  @override
  Widget build(BuildContext context) {
    LinkedHashMap arguments = ModalRoute.of(context).settings.arguments;
    final ExerciseRepository exerciseRepository = arguments['exerciseRepository'];
    final int customerId = arguments['customerId'];
    setContext(context);

    return Scaffold(
        appBar: AppBarCommonNav(),
        body: Container(
          padding: EdgeInsets.all(20),
          decoration: BoxDecoration(
            image: DecorationImage(
              image: customerId == Cache().userLoggedIn.customerId ? AssetImage('asset/image/WT_light_background.png'):
              AssetImage('asset/image/WT_menu_dark.png'),
              fit: BoxFit.cover,
              alignment: Alignment.center,
            ),
          ),
          child: exerciseWidget(exerciseRepository, customerId),
        )
    );
  }

  Widget exerciseWidget(ExerciseRepository exerciseRepository, int customerId) {
    return TreeView(
      startExpanded: false,
      children: _getTreeChildren(exerciseRepository, customerId),
    );
  }

  List<Widget> _getTreeChildren(ExerciseRepository exerciseRepository, int customerId) {
    if ( customerId == Cache().userLoggedIn.customerId ) {
      exerciseRepository.exerciseList = exerciseRepository.getExerciseList();
    } else if ( Cache().getTrainee() != null && customerId == Cache().getTrainee().customerId ) {
      exerciseRepository.exerciseList = exerciseRepository.getExerciseListTrainee();
    }
    exerciseRepository.sortByDate();

    List<Widget> listWidget = List();

    Card explanation = Card(
      color: Colors.white60,
      child: Container(
        padding: EdgeInsets.only(left: 10, right: 5, top: 12, bottom: 8),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.spaceAround,
          children: [
            Row(
              children: [
                Icon(
                  Icons.info,
                  color: Colors.orangeAccent,
                ),
                Text("  "),
                Text(
                  t("My Exercise Logs"),
                  style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
                ),
              ],
            ),
            Divider(
              color: Colors.transparent,
            ),
            Text(
              t("In this list you will find all your executed exercises grouped by the date."),
              style: TextStyle(fontSize: 12, fontWeight: FontWeight.normal),
            ),

          ],
        )
      )
    );
    listWidget.add(explanation);

    List<Exercise> listExercises = List();
    String origDate = "";
    print("start exercises");
    exerciseRepository.exerciseList.forEach((exercise) {
      String exerciseDate = DateFormat("yyyy-MM-dd", AppLanguage().appLocal.toString()).format(exercise.dateAdd);

      if ( origDate != exerciseDate) {
        if ( origDate.length == 0) {
          listExercises.add(exercise);
          origDate = exerciseDate;
        } else {
          listWidget.add(
            Container(
              margin: const EdgeInsets.only(left: 4.0),
              child: TreeViewChild(
                startExpanded: true,
                parent: TreeviewParentWidget(text: exerciseDate),
                children: _getChildList(listExercises, exerciseRepository),
              )
            )
          );
          listExercises = List();
        }
      }
        origDate = exerciseDate;
        listExercises.add(exercise);

    });

    return listWidget;
  }

  List<Widget> _getChildList(List<Exercise> listExercises, ExerciseRepository exerciseRepository) {
    List<Widget> list = List();
    bool isEnglish = AppLanguage().appLocal == Locale('en');

    listExercises.forEach((exercise) {
      ExerciseType exerciseType = exerciseRepository.getExerciseTypeById(exercise.exerciseTypeId);
      String exerciseName = isEnglish ? exerciseType.name : exerciseType.nameTranslation;

      String unitQuantity = exerciseType.unitQuantity == "1"
        ? exercise.unitQuantity.toStringAsFixed(0) +
        " " +
        t(exerciseType.unitQuantityUnit) +
        " "
        : "";

      String labelExercise =
        unitQuantity +
        exercise.quantity.toStringAsFixed(0) +
        " " +
        t(exercise.unit);

      list.add(
          Card(
            margin: EdgeInsets.only(left: 10, top: 5),
            color: Colors.white54,
            child: Container(
              padding: const EdgeInsets.only(left: 5, top: 0, right: 5, bottom: 0),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.start,
                children: [
                  Icon(Icons.accessibility, color: Colors.black12),
                  SizedBox(width: 20),
                  Flexible(
                    child:
                      Text(
                        exerciseName,
                        textAlign: TextAlign.start,
                        style: TextStyle(fontSize: 12, color: Colors.black),
                      ),
                  ),
                  SizedBox(width: 20),
                  Text(labelExercise , style: TextStyle(fontSize: 9, color: Colors.blueAccent.shade700),) ,
                ]),
            )
          ),
      );

    });

    return list;
  }

}