added working practiceAll thing

lib/pages/practice/PracticePage.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:ohthatsa/pages/practice/PracticeDatabase.dart';
 import 'package:ohthatsa/pages/practice/PracticeSetup.dart';
 import 'package:ohthatsa/pages/practice/thing/PracticeThing.dart';
+import 'package:ohthatsa/pages/practice/thing/PracticeThingAll.dart';
 import 'package:ohthatsa/pages/practice/thing/PracticeThingCentury.dart';
 import 'package:ohthatsa/pages/practice/thing/PracticeThingLeap.dart';
 import 'package:ohthatsa/pages/practice/thing/PracticeThingMod.dart';
@@ -53,8 +54,13 @@ class _PracticeState extends State<PracticePage> {
         this.practiceThing = PracticeThingMod();
         break;
       }
+      case (PracticeType.all): {
+        this.practiceThing = PracticeThingAll();
+        break;
+      }
       default: {
-        //
+
+        break;
       }
     }
   }

lib/pages/practice/thing/PracticeThingAll.dart

@@ -0,0 +1,121 @@
+import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
+import 'package:flutter/src/widgets/text.dart';
+import 'package:ohthatsa/pages/practice/PracticeAnswer.dart';
+import 'package:ohthatsa/pages/practice/thing/PracticeThing.dart';
+
+class PracticeThingAll extends PracticeThing {
+  DateTime current;
+  final dateFormatter = DateFormat.yMMMMd();
+  final weekdayFormatter = DateFormat.EEEE();
+
+  final monthList = [
+    DateTime.january,
+    DateTime.february,
+    DateTime.march,
+    DateTime.may,
+    DateTime.june,
+    DateTime.july,
+    DateTime.august,
+    DateTime.september,
+    DateTime.october,
+    DateTime.november,
+    DateTime.december
+  ];
+
+  PracticeThingAll() {
+    next();
+  }
+
+  @override
+  bool isCorrect(int answer){
+    return (current.weekday % 7) == answer;
+  }
+
+  @override
+  bool answer(int answer) {
+    bool isCorrect = this.isCorrect(answer);
+    answers.add(PracticeAnswer(current.millisecondsSinceEpoch, answer, isCorrect));
+    return isCorrect;
+  }
+
+  @override
+  void next() {
+    var year = 1700 + random.nextInt(500);
+    var month = monthList[random.nextInt(monthList.length)];
+    var dt1 = DateTime.utc(year, month, 0);
+    var dt2 = DateTime.utc( // Wrap to next year january if month is dec
+      year + (month == DateTime.december ? 1 : 0),
+      (month == DateTime.december ? 1 : month+1),
+      0
+    );
+    var daysInMonth = dt2.difference(dt1);
+    current = DateTime.utc(
+      year,
+      month,
+      random.nextInt(daysInMonth.inDays) + 1
+    );
+  }
+
+  List<bool> getBoolAnswers() {
+    return answers.map((answer) =>
+      answer.correct
+    ).toList();
+  }
+
+  Text getAppBarTitleText() {
+    return Text("Practicing Days");
+  }
+
+  Text getCurrentQuestionText(){
+    return Text(
+      dateFormatter.format(current),
+      style: TextStyle(
+          fontSize: 30
+      )
+    );
+  }
+
+  Text getLastAnswerText(bool showCorrect){
+    String text = "-";
+    Color color = Colors.red;
+    if(answers.length >= 1){
+      final answer = answers[answers.length - 1];
+      final dt = DateTime.fromMillisecondsSinceEpoch(answer.question, isUtc: true);
+      final weekdayString = weekdayFormatter.format(dt);
+      final correctAnswer = dt.weekday % 7;
+      text = dateFormatter.format(dt) + (showCorrect ? ": $weekdayString ($correctAnswer)" : "");
+      if(answer.correct){
+        color = Colors.green;
+      }
+    }
+    return Text(
+        text,
+        style: TextStyle(
+            fontSize: 15,
+            color: color
+        )
+    );
+  }
+  Text getSecondLastAnswerText(bool showCorrect){
+    String text = "-";
+    Color color = Colors.red;
+    if(answers.length >= 2){
+      final answer = answers[answers.length - 2];
+      final dt = DateTime.fromMillisecondsSinceEpoch(answer.question, isUtc: true);
+      final weekdayString = weekdayFormatter.format(dt);
+      final correctAnswer = dt.weekday % 7;
+      text = dateFormatter.format(dt) + (showCorrect ? ": $weekdayString ($correctAnswer)" : "");
+      if(answer.correct){
+        color = Colors.green;
+      }
+    }
+    return Text(
+        text,
+        style: TextStyle(
+            fontSize: 10,
+            color: color
+        )
+    );
+  }
+}