33 lines
929 B
TypeScript
33 lines
929 B
TypeScript
export interface TimeParts {
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hours: number
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minutes: number
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}
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export function clampHours(value: number): number {
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if (Number.isNaN(value)) return 0
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return Math.min(23, Math.max(0, Math.trunc(value)))
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}
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export function clampMinutes(value: number): number {
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if (Number.isNaN(value)) return 0
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return Math.min(59, Math.max(0, Math.trunc(value)))
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}
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export function padSegment(value: number): string {
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return value.toString().padStart(2, '0')
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}
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export function parseTime(value: string | null | undefined): TimeParts | null {
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if (!value) return null
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const match = /^(\d{1,2}):(\d{1,2})$/.exec(value.trim())
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if (!match) return null
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return {
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hours: clampHours(Number.parseInt(match[1], 10)),
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minutes: clampMinutes(Number.parseInt(match[2], 10)),
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}
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}
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export function formatTime(hours: number, minutes: number): string {
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return `${padSegment(clampHours(hours))}:${padSegment(clampMinutes(minutes))}`
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}
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