27 lines
683 B
TypeScript
27 lines
683 B
TypeScript
export function calculateDayInterval(date, currentDay = (new Date().getDay())): number {
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switch (date) {
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case 'today':
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return 0
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case 'tomorrow':
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return 1
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case 'nextMonday':
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// Monday is 1, so we calculate the distance to the next 1
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return (currentDay + (8 - currentDay * 2)) % 7
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case 'thisWeekend':
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// Saturday is 6 so we calculate the distance to the next 6
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return (6 - currentDay) % 6
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case 'laterThisWeek':
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if (currentDay === 5 || currentDay === 6 || currentDay === 0) {
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return 0
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}
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return 2
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case 'laterNextWeek':
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return calculateDayInterval('laterThisWeek', currentDay) + 7
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case 'nextWeek':
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return 7
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default:
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return 0
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}
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}
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