Refactor codebase resolving warnings and remove self-package imports

2023-06-03 11:27:14 +02:00
parent 6d0898d6ac
commit f0da6f2596
79 changed files with 204 additions and 193 deletions
--- a/lib/view/pages/more/gradeAverages/gradeAverage.dart
+++ b/lib/view/pages/more/gradeAverages/gradeAverage.dart
@ -0,0 +1,170 @@
+import 'package:flutter/material.dart';
+
+class GradeAverage extends StatefulWidget {
+  const GradeAverage({Key? key}) : super(key: key);
+
+  @override
+  State<GradeAverage> createState() => _GradeAverageState();
+}
+
+class _GradeAverageState extends State<GradeAverage> {
+  double average = 0;
+  bool gradeSystem = true;
+  List<int> grades = List.empty(growable: true);
+
+  String getGradeDisplay(int grade) {
+    if(gradeSystem) {
+      return "Note $grade";
+    } else {
+      return "$grade Punkt${grade > 1 ? "e" : ""}";
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if(grades.isNotEmpty) {
+       average = grades.reduce((a, b) => a + b) / grades.length;
+    } else {
+      average = 0;
+    }
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text("Notendurschnittsrechner"),
+        actions: [
+          IconButton(onPressed: () {
+            showDialog(context: context, builder: (context) {
+              return AlertDialog(
+                title: const Text("Zurücksetzen?"),
+                content: const Text("Alle Einträge werden entfernt."),
+                actions: [
+                  TextButton(onPressed: () {
+                    Navigator.of(context).pop();
+                  }, child: const Text("Abbrechen")),
+                  TextButton(onPressed: () {
+                    grades.clear();
+                    setState(() {});
+                    Navigator.of(context).pop();
+                  }, child: const Text("Zurücksetzen"))
+                ],
+              );
+            });
+          }, icon: const Icon(Icons.delete_forever)),
+          PopupMenuButton<bool>(
+            enableFeedback: true,
+            initialValue: gradeSystem,
+            icon: const Icon(Icons.more_horiz),
+            itemBuilder: (context) => [true, false].map((e) => PopupMenuItem<bool>(
+              value: e,
+              enabled: e != gradeSystem,
+              child: Row(
+                children: [
+                  Text(e ? "Notensystem" : "Punktesystem"),
+                ],
+              ),
+            )).toList(),
+
+            onSelected: (e) {
+              void switchSystem() => setState(() {
+                grades.clear();
+                gradeSystem = e;
+              });
+
+              if(grades.isNotEmpty) {
+                showDialog(context: context, builder: (context) {
+                  return AlertDialog(
+                    title: const Text("Notensystem wechseln"),
+                    content: const Text("Beim wechsel des Notensystems werden alle Einträge zurückgesetzt."),
+                    actions: [
+                      TextButton(onPressed: () {
+                        Navigator.of(context).pop();
+                      }, child: const Text("Abbrechen")),
+                      TextButton(onPressed: () {
+                        switchSystem();
+                        Navigator.of(context).pop();
+                      }, child: const Text("Fortfahren")),
+                    ],
+                  );
+                });
+              } else {
+                switchSystem();
+              }
+
+
+            },
+          ),
+        ],
+      ),
+      body: Column(
+        crossAxisAlignment: CrossAxisAlignment.center,
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          const SizedBox(height: 30),
+          Text(average.toStringAsFixed(2), style: const TextStyle(fontSize: 30, fontWeight: FontWeight.bold)),
+          const SizedBox(height: 10),
+          const Divider(),
+          const SizedBox(height: 10),
+          Text(gradeSystem ? "Wähle unten die Anzahl deiner jewiligen Noten aus" : "Wähle unten die Anzahl deiner jeweiligen Punkte aus"),
+          const SizedBox(height: 10),
+          Expanded(
+            child: ListView.builder(
+              itemBuilder: (context, index) {
+                var grade = gradeSystem ? index + 1 : 14 - index + 1;
+                bool isThis(int e) => e == grade;
+                return Material(
+                  child: ListTile(
+                    tileColor: grade.isEven ? Colors.transparent : Colors.transparent.withAlpha(50),
+                    title: Center(
+                      child: Row(
+                        mainAxisAlignment: MainAxisAlignment.center,
+                        children: [
+                          Text(getGradeDisplay(grade)),
+                          const SizedBox(width: 30),
+                          IconButton(
+                            onPressed: () {
+                              setState(() {
+                                if(!grades.any(isThis)) return;
+                                grades.removeAt(grades.indexWhere(isThis));
+                              });
+                            },
+                            icon: const Icon(Icons.remove),
+                            color: Theme.of(context).colorScheme.onSurface,
+                          ),
+                          Text("${grades.where(isThis).length}", style: const TextStyle(fontSize: 15, fontWeight: FontWeight.bold)),
+                          IconButton(
+                            onPressed: () {
+                              setState(() {
+                                grades.add(grade);
+                              });
+                            },
+                            icon: const Icon(Icons.add),
+                            color: Theme.of(context).colorScheme.onSurface,
+                          ),
+                        ],
+                      ),
+                    ),
+                    trailing: Visibility(
+                      maintainState: true,
+                      maintainAnimation: true,
+                      maintainSize: true,
+                      visible: grades.any(isThis),
+                      child: IconButton(
+                        icon: const Icon(Icons.delete),
+                        onPressed: () {
+                          setState(() {
+                            grades.removeWhere(isThis);
+                          });
+                        },
+                      ),
+                    ),
+                  ),
+                );
+              },
+              itemCount: gradeSystem ? 6 : 15,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}