47 lines
1.5 KiB
TypeScript
47 lines
1.5 KiB
TypeScript
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/**
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* Determines if a submission was submitted before the due date
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* @param createdAt Submission creation timestamp
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* @param dueBy Exercise due date (can be null)
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* @returns true if submission is early or on time, false if late
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*/
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export function isSubmissionEarly(createdAt: string, dueBy: string | null): boolean {
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if (!dueBy) return true;
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return new Date(createdAt).getTime() <= new Date(dueBy).getTime();
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}
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/**
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* Calculates total points from a grades map
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* @param grades Map of question IDs to point values
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* @returns Sum of all points
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*/
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export function calculateTotalPoints(grades: { [questionId: string]: number }): number {
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if (!grades) return 0;
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return Object.values(grades).reduce(
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(acc, grade) => acc + (typeof grade === 'number' ? grade : parseInt(String(grade), 10) || 0),
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0
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);
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}
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/**
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* Gets maximum possible points from questions array
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* @param questions Array of questions with points property
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* @returns Sum of all question points
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*/
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export function getMaxPoints(questions: Array<{ points: number }>): number {
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if (!questions || !Array.isArray(questions)) return 0;
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return questions.reduce((acc, question) => acc + (question.points || 0), 0);
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}
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/**
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* Formats a date string for display
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* @param date ISO date string
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* @returns Formatted date string
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*/
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export function formatSubmittedDate(date: string): string {
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const d = new Date(date);
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return new Intl.DateTimeFormat('en-US', {
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dateStyle: 'full',
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timeStyle: 'medium'
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}).format(d);
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}
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