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CSCEXAM-000 Refactor large components/services to smaller
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| // SPDX-FileCopyrightText: 2024 The members of the EXAM Consortium | ||
| // | ||
| // SPDX-License-Identifier: EUPL-1.2 | ||
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| import { HttpClient } from '@angular/common/http'; | ||
| import { Injectable } from '@angular/core'; | ||
| import { Exam, ExamSection } from 'src/app/exam/exam.model'; | ||
| import { isNumber } from 'src/app/shared/miscellaneous/helpers'; | ||
| import { ExamSectionQuestion, ExamSectionQuestionOption, Question, QuestionAmounts } from './question.model'; | ||
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| @Injectable({ providedIn: 'root' }) | ||
| export class QuestionScoringService { | ||
| constructor(private httpClient: HttpClient) {} | ||
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| getQuestionAmounts = (exam: Exam): QuestionAmounts => { | ||
| const essays = exam.examSections | ||
| .flatMap((es) => es.sectionQuestions) | ||
| .filter((esq) => esq.question.type === 'EssayQuestion'); | ||
| const scores = essays | ||
| .filter((e) => e.evaluationType === 'Selection' && e.essayAnswer) | ||
| .map((e) => e.essayAnswer?.evaluatedScore); | ||
| const accepted = scores.filter((s) => s === 1).length; | ||
| const rejected = scores.filter((s) => s === 0).length; | ||
| return { accepted: accepted, rejected: rejected, hasEssays: essays.length > 0 }; | ||
| }; | ||
|
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| getEssayQuestionAmountsBySection = (section: ExamSection) => { | ||
| const scores = section.sectionQuestions | ||
| .filter((sq) => sq.question.type === 'EssayQuestion' && sq.evaluationType === 'Selection' && sq.essayAnswer) | ||
| .map((sq) => sq.essayAnswer?.evaluatedScore); | ||
| return { | ||
| accepted: scores.filter((s) => s === 1).length, | ||
| rejected: scores.filter((s) => s === 0).length, | ||
| total: scores.length, | ||
| }; | ||
| }; | ||
|
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| calculateDefaultMaxPoints = (question: Question) => | ||
| question.options.filter((o) => o.defaultScore > 0).reduce((a, b) => a + b.defaultScore, 0); | ||
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| getMinimumOptionScore = (sectionQuestion: ExamSectionQuestion): number => { | ||
| const optionScores = sectionQuestion.options.map((o) => o.score); | ||
| const scores = [0, ...optionScores]; // Make sure 0 is included | ||
| return sectionQuestion.question.type === 'WeightedMultipleChoiceQuestion' | ||
| ? Math.max(0, Math.min(...scores)) // Weighted mcq mustn't have a negative min score | ||
| : Math.min(...scores); | ||
| }; | ||
|
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||
| getCorrectClaimChoiceOptionDefaultScore = (question: Question): number => { | ||
| if (!question.options) { | ||
| return 0; | ||
| } | ||
| const correctOption = question.options.filter((o) => o.correctOption && o.claimChoiceType === 'CorrectOption'); | ||
| return correctOption.length === 1 ? correctOption[0].defaultScore : 0; | ||
| }; | ||
|
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||
| scoreClozeTestAnswer = (sectionQuestion: ExamSectionQuestion): number => { | ||
| if (!sectionQuestion.clozeTestAnswer) { | ||
| return 0; | ||
| } | ||
| if (isNumber(sectionQuestion.forcedScore)) { | ||
| return sectionQuestion.forcedScore; | ||
| } | ||
| const score = sectionQuestion.clozeTestAnswer.score; | ||
| if (!score) return 0; | ||
| const proportion = | ||
| (score.correctAnswers * sectionQuestion.maxScore) / (score.correctAnswers + score.incorrectAnswers); | ||
| return parseFloat(proportion.toFixed(2)); | ||
| }; | ||
|
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| scoreWeightedMultipleChoiceAnswer = (sectionQuestion: ExamSectionQuestion, ignoreForcedScore: boolean): number => { | ||
| if (isNumber(sectionQuestion.forcedScore) && !ignoreForcedScore) { | ||
| return sectionQuestion.forcedScore; | ||
| } | ||
| const score = sectionQuestion.options.filter((o) => o.answered).reduce((a, b) => a + b.score, 0); | ||
| return Math.max(0, score); | ||
| }; | ||
|
|
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| // For non-weighted mcq | ||
| scoreMultipleChoiceAnswer = (sectionQuestion: ExamSectionQuestion, ignoreForcedScore: boolean): number => { | ||
| if (isNumber(sectionQuestion.forcedScore) && !ignoreForcedScore) { | ||
| return sectionQuestion.forcedScore; | ||
| } | ||
| const answered = sectionQuestion.options.filter((o) => o.answered); | ||
| if (answered.length === 0) { | ||
| // No answer | ||
| return 0; | ||
| } | ||
| if (answered.length !== 1) { | ||
| console.error('multiple options selected for a MultiChoice answer!'); | ||
| } | ||
|
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| return answered[0].option.correctOption ? sectionQuestion.maxScore : 0; | ||
| }; | ||
|
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| scoreClaimChoiceAnswer = (sectionQuestion: ExamSectionQuestion, ignoreForcedScore: boolean): number => { | ||
| if (isNumber(sectionQuestion.forcedScore) && !ignoreForcedScore) { | ||
| return sectionQuestion.forcedScore; | ||
| } | ||
| const selected = sectionQuestion.options.filter((o) => o.answered); | ||
|
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| // Use the score from the skip option if no option was chosen | ||
| const skipOption = sectionQuestion.options.filter((o) => o.option.claimChoiceType === 'SkipOption'); | ||
| const skipScore = skipOption.length === 1 ? skipOption[0].score : 0; | ||
|
|
||
| if (selected.length === 0) { | ||
| return skipScore; | ||
| } | ||
| if (selected.length !== 1) { | ||
| console.error('multiple options selected for a ClaimChoice answer!'); | ||
| } | ||
| if (selected[0].score && isNumber(selected[0].score)) { | ||
| return selected[0].score; | ||
| } | ||
| return 0; | ||
| }; | ||
|
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| calculateAnswerScore = (sq: ExamSectionQuestion) => { | ||
| switch (sq.question.type) { | ||
| case 'MultipleChoiceQuestion': | ||
| return { score: this.scoreMultipleChoiceAnswer(sq, false), rejected: false, approved: false }; | ||
| case 'WeightedMultipleChoiceQuestion': | ||
| return { score: this.scoreWeightedMultipleChoiceAnswer(sq, false), rejected: false, approved: false }; | ||
| case 'ClozeTestQuestion': | ||
| return { score: this.scoreClozeTestAnswer(sq), rejected: false, approved: false }; | ||
| case 'EssayQuestion': | ||
| if (sq.essayAnswer && sq.essayAnswer.evaluatedScore && sq.evaluationType === 'Points') { | ||
| return { score: sq.essayAnswer.evaluatedScore, rejected: false, approved: false }; | ||
| } else if (sq.essayAnswer && sq.essayAnswer.evaluatedScore && sq.evaluationType === 'Selection') { | ||
| const score = sq.essayAnswer.evaluatedScore; | ||
| return { score: score, rejected: score === 0, approved: score === 1 }; | ||
| } | ||
| return { score: 0, rejected: false, approved: false }; | ||
| case 'ClaimChoiceQuestion': | ||
| return { score: this.scoreClaimChoiceAnswer(sq, false), rejected: false, approved: false }; | ||
| default: | ||
| throw Error('unknown question type'); | ||
| } | ||
| }; | ||
|
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| calculateWeightedMaxPoints = (options: ExamSectionQuestionOption[]): number => { | ||
| const points = options.filter((o) => o.score > 0).reduce((a, b) => a + b.score, 0); | ||
| return parseFloat(points.toFixed(2)); | ||
| }; | ||
|
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| getCorrectClaimChoiceOptionScore = (sectionQuestion: ExamSectionQuestion): number => { | ||
| if (!sectionQuestion.options) { | ||
| return 0; | ||
| } | ||
| const optionScores = sectionQuestion.options.map((o) => o.score); | ||
| return Math.max(0, ...optionScores); | ||
| }; | ||
|
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| calculateMaxScore = (question: ExamSectionQuestion) => { | ||
| const evaluationType = question.evaluationType; | ||
| const type = question.question.type; | ||
| if (evaluationType === 'Points' || type === 'MultipleChoiceQuestion' || type === 'ClozeTestQuestion') { | ||
| return question.maxScore; | ||
| } | ||
| if (type === 'WeightedMultipleChoiceQuestion') { | ||
| return this.calculateWeightedMaxPoints(question.options); | ||
| } | ||
| if (type === 'ClaimChoiceQuestion') { | ||
| return this.getCorrectClaimChoiceOptionScore(question); | ||
| } | ||
| return 0; | ||
| }; | ||
| } |
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