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: / var / www / mudeer-web-backup30April26 / src / lib /
Filename : time-options.ts
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/**
 * Generate time options with 15-minute intervals (AM/PM format).
 * Used by register and settings for start/end time dropdowns.
 */
export function generateTimeOptions(): string[] {
  const times: string[] = []
  for (let hour = 0; hour < 24; hour++) {
    for (let minute = 0; minute < 60; minute += 15) {
      const date = new Date()
      date.setHours(hour, minute, 0, 0)
      const timeString = date.toLocaleTimeString('en-US', {
        hour: 'numeric',
        minute: '2-digit',
        hour12: true
      })
      times.push(timeString)
    }
  }
  return times
}

/**
 * Normalize a stored time string (e.g. "9:0 AM") to match an option (e.g. "9:00 AM").
 * Returns the matching option, or the original stored value if it's "off" or already in options.
 */
export function normalizeTimeOption(stored: string, options: string[]): string {
  if (!stored) return stored
  if (stored === 'off' || options.includes(stored)) return stored
  const match = stored.match(/^(\d{1,2}):(\d{1,2})\s*(AM|PM)$/i)
  if (!match) return stored
  const [, hour, minute, period] = match
  const normalized = `${parseInt(hour!, 10)}:${minute!.padStart(2, '0')} ${period!.toUpperCase()}`
  return options.includes(normalized) ? normalized : stored
}