analytica-frontend-lib
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Repositório público dos componentes utilizados nas plataformas da Analytica Ensino
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{"version":3,"sources":["../src/components/Quiz/Quiz.utils.ts"],"sourcesContent":["import {\n QuizVariant,\n type QuestionAnswerResult,\n type TrueOrFalseOptionState,\n} from './Quiz.types';\nimport { TrueFalseEnum } from '../../enums/Quiz';\nimport { OptionStatus } from '../../enums/Options';\n\n/**\n * Helper function to format exam info (bank - year)\n * @param examBoard - The exam board/bank name\n * @param examYear - The exam year\n * @returns Formatted string like \"(ENEM - 2023)\" or empty string if no info\n */\nexport const formatExamInfo = (\n examBoard: string | null | undefined,\n examYear: string | null | undefined\n): string => {\n if (examBoard && examYear) {\n return `(${examBoard} - ${examYear})`;\n }\n if (examBoard) {\n return `(${examBoard})`;\n }\n if (examYear) {\n return `(${examYear})`;\n }\n return '';\n};\n\n/**\n * Shuffle array using a seed for consistent ordering per question\n * Uses Fisher-Yates shuffle with seeded random for deterministic results\n */\nexport const shuffleWithSeed = <T>(array: T[], seed: string): T[] => {\n const shuffled = [...array];\n // Simple hash function to convert string seed to number\n let hash = 0;\n for (let i = 0; i < seed.length; i++) {\n const char = seed.codePointAt(i) ?? 0;\n hash = (hash << 5) - hash + char;\n hash = hash & hash; // Convert to 32bit integer\n }\n // Fisher-Yates shuffle with seeded random\n const seededRandom = (max: number) => {\n hash = (hash * 1103515245 + 12345) & 0x7fffffff;\n return hash % max;\n };\n for (let i = shuffled.length - 1; i > 0; i--) {\n const j = seededRandom(i + 1);\n [shuffled[i], shuffled[j]] = [shuffled[j], shuffled[i]];\n }\n return shuffled;\n};\n\n/**\n * Helper to prepend letter to HTML content (handles <p> tags)\n * @example prependLetterToHtml('a', '<p>Text</p>') => '<p>a) Text</p>'\n * @example prependLetterToHtml('a', 'Text') => 'a) Text'\n */\nexport const prependLetterToHtml = (letter: string, html: string): string => {\n if (html.trim().startsWith('<p>')) {\n return html.replace(/^(\\s*<p>)/, `$1${letter}) `);\n }\n return `${letter}) ${html}`;\n};\n\n/**\n * Compute state for a true/false option\n * Handles both interactive (default) and result modes\n */\nexport const getTrueOrFalseOptionState = (\n optionId: string,\n variant: string,\n currentQuestionResult: QuestionAnswerResult | null | undefined,\n localAnswers: Record<string, string>\n): TrueOrFalseOptionState => {\n // Get whether the statement is TRUE or FALSE from persisted result\n const correctAnswerOption = currentQuestionResult?.options?.find(\n (op) => op.id === optionId\n );\n const isStatementTrue =\n variant === QuizVariant.RESULT\n ? (correctAnswerOption?.isCorrect ?? false)\n : false;\n\n // Get student's selection from selectedOptions\n const studentSelection =\n variant === QuizVariant.RESULT\n ? currentQuestionResult?.selectedOptions?.find(\n (op) => op.optionId === optionId\n )\n : undefined;\n\n // Determine if answered and what was marked\n const hasAnswered =\n variant === QuizVariant.RESULT\n ? studentSelection !== undefined\n : !!localAnswers[optionId];\n\n const studentMarkedTrue =\n variant === QuizVariant.RESULT\n ? (studentSelection?.isCorrect ?? false)\n : localAnswers[optionId] === TrueFalseEnum.VERDADEIRO;\n\n // Compute display values\n const getStudentAnswerDisplay = (): string => {\n if (variant !== QuizVariant.RESULT) {\n return localAnswers[optionId] || '-';\n }\n if (!hasAnswered) {\n return '-';\n }\n return studentMarkedTrue ? TrueFalseEnum.VERDADEIRO : TrueFalseEnum.FALSO;\n };\n const studentAnswer = getStudentAnswerDisplay();\n\n const correctAnswer = isStatementTrue\n ? TrueFalseEnum.VERDADEIRO\n : TrueFalseEnum.FALSO;\n const isStudentCorrect = hasAnswered && studentMarkedTrue === isStatementTrue;\n const variantCorrect = isStudentCorrect\n ? 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