migrate goalplanner

filcnaplo/lib/helpers/goalplanner_helper.dart

@@ -1,117 +0,0 @@
-/* 
- * Maintainer: DarK
- * Translated from C version
- * ##Please do NOT modify if you don't know whats going on##
- * 
- * Issue: #59
- * 
- * Future changes / ideas:
- *  - `best` should be configurable
- */
-import 'dart:math';
-
-import 'package:filcnaplo/helpers/average_helper.dart';
-import 'package:filcnaplo_kreta_api/models/grade.dart';
-
-/// Generate list of grades that achieve the wanted goal.
-/// After generating possible options, it (when doing so would NOT result in empty list) filters with two criteria:
-///  - Plan should not contain more than 15 grades
-///  - Plan should not contain only one type of grade
-///
-/// **Usage**:
-///
-/// ```dart
-/// List<int> GoalPlanner(double goal, List<Grade> grades).solve().plan
-/// ```
-class GoalPlanner {
-  final double goal;
-  final List<Grade> grades;
-  List<Plan> plans = [];
-  GoalPlanner(this.goal, this.grades);
-
-  bool _allowed(int grade) => grade > goal;
-
-  Avg _addToAvg(Avg base, int grade, int n) => Avg((base.avg * base.n + grade * n) / (base.n + n), base.n + n);
-  List<T> _addToList<T>(List<T> l, T e, int n) {
-    if (n == 0) return l;
-    List<T> tmp = l;
-    for (int i = 0; i < n; i++) tmp.add(e);
-    return tmp;
-  }
-
-  void _generate(Generator g) {
-    // Exit condition 1: Generator has working plan.
-    if (g.currentAvg.avg >= goal) {
-      plans.add(Plan(g.plan));
-      return;
-    }
-    // Exit condition 2: Generator plan will never work.
-    if (!_allowed(g.gradeToAdd)) return;
-    for (int i = 0; i < g.max; i++) {
-      int newGradeToAdd = g.gradeToAdd - 1;
-      List<int> newPlan = _addToList<int>(g.plan, g.gradeToAdd, i);
-      Avg newAvg = _addToAvg(g.currentAvg, g.gradeToAdd, i);
-      int newN = AverageHelper.howManyNeeded(newGradeToAdd, [], goal);
-
-      _generate(Generator(newGradeToAdd, newN, newAvg, newPlan));
-    }
-  }
-
-  Plan solve() {
-    _generate(
-      Generator(
-        5,
-        AverageHelper.howManyNeeded(
-          5,
-          [],
-          goal,
-          filcgrade: false,
-          avg: AverageHelper.averageEvals(grades),
-          wsum: AverageHelper.weightSum(grades),
-        ),
-        Avg(AverageHelper.averageEvals(grades), AverageHelper.weightSum(grades)),
-        [],
-      ),
-    );
-
-    // Calculate Statistics
-    plans.forEach((e) {
-      e.sum = e.plan.fold(0, (int a, b) => a + b);
-      e.avg = e.sum / e.plan.length;
-      e.sigma = sqrt(e.plan.map((i) => pow(i - e.avg, 2)).fold(0, (num a, b) => a + b) / e.plan.length);
-    });
-
-    // filter without aggression
-    if (plans.where((e) => e.plan.length < 15).isNotEmpty) plans.removeWhere((e) => !(e.plan.length < 15));
-    if (plans.where((e) => e.sigma > 1).isNotEmpty) plans.removeWhere((e) => !(e.sigma > 1));
-
-    return plans[Random().nextInt(plans.length)];
-  }
-}
-
-class Avg {
-  final double avg;
-  final double n;
-
-  Avg(this.avg, this.n);
-}
-
-class Generator {
-  final int gradeToAdd;
-  final int max;
-  final Avg currentAvg;
-  final List<int> plan;
-
-  Generator(this.gradeToAdd, this.max, this.currentAvg, this.plan);
-}
-
-class Plan {
-  final List<int> plan;
-  int sum = 0;
-  double avg = 0;
-  int med = 0; // currently
-  int mod = 0; // unused
-  double sigma = 0;
-
-  Plan(this.plan);
-}

filcnaplo_mobile_ui

@@ -1 +1 @@
-Subproject commit 8af704591c96592b7883a29977e69e798029a3aa
+Subproject commit 5fb96521816422de3df3c5d0db26d2bf29f33c7e

filcnaplo_premium

@@ -1 +1 @@
-Subproject commit 54b166839a9a06680b51628567749421f3d9cca8
+Subproject commit f39e1fc544497204cf704f143a4df0e1dc02abcf