forked from firka/firka
113 lines
2.2 KiB
Dart
113 lines
2.2 KiB
Dart
import 'dart:ui';
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import 'package:firka_common/ui/theme/style.dart';
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import 'package:kreta_api/kreta_api.dart';
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int roundGrade(
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double grade, {
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double t1 = 1,
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double t2 = 0.5,
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double t3 = 0.5,
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double t4 = 0.5,
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}) {
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if (grade < 1 + t1) {
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return 1;
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}
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if (grade < 2 + t2) {
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return 2;
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}
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if (grade < 3 + t3) {
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return 3;
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}
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if (grade < 4 + t4) {
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return 4;
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}
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return 5;
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}
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int percentageToGrade(int grade) {
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if (grade < 50) {
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return 1;
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}
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if (grade < 60) {
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return 2;
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}
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if (grade < 70) {
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return 3;
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}
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if (grade < 80) {
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return 4;
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}
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return 5;
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}
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Color getGradeColor(
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double grade, {
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double t1 = 1,
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double t2 = 0.5,
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double t3 = 0.5,
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double t4 = 0.5,
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}) {
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switch (roundGrade(grade, t1: t1, t2: t2, t3: t3, t4: t4)) {
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case 2:
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return appStyle.colors.grade2;
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case 3:
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return appStyle.colors.grade3;
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case 4:
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return appStyle.colors.grade4;
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case 5:
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return appStyle.colors.grade5;
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default:
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return appStyle.colors.grade1;
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}
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}
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(int total, List<int> countsByGrade) getGradeDistribution(List<Grade> grades) {
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final filtered = grades
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.where((g) => g.type.name != "felevi_jegy_ertekeles")
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.toList();
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final counts = [0, 0, 0, 0, 0];
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for (final g in filtered) {
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if (g.numericValue == null) continue;
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final value = g.valueType.name == "Szazalekos"
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? percentageToGrade(g.numericValue!.round())
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: g.numericValue!.round().clamp(1, 5);
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counts[value - 1]++;
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}
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return (filtered.length, counts);
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}
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extension GradeListExtension on List<Grade> {
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double getAverageBySubject(Subject subject) {
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var weightTotal = 0.00;
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var sum = 0.00;
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for (var grade in this) {
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if (grade.subject.uid == subject.uid) {
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final name = grade.valueType.name?.toLowerCase() ?? '';
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final isPercentage =
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name.contains('szazalek') || name.contains('percent');
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if (isPercentage) {
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continue;
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}
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if (grade.numericValue != null) {
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var weight = (grade.weightPercentage ?? 100) / 100.0;
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weightTotal += weight;
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sum += grade.numericValue! * weight;
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}
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}
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}
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if (weightTotal == 0) {
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return double.nan;
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}
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return sum / weightTotal;
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}
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}
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