import { strings } from '@/common/strings';

export function formatDateTime(isoString: string): string {
  const date = new Date(isoString);
  return date.toLocaleDateString('en-US', {
    weekday: 'long',
    month: 'long',
    day: 'numeric',
    hour: 'numeric',
    minute: '2-digit',
    hour12: true,
  });
}

export function formatDateKey(date: Date): string {
  const year = date.getFullYear();
  const month = String(date.getMonth() + 1).padStart(2, '0');
  const day = String(date.getDate()).padStart(2, '0');
  return `${year}-${month}-${day}`;
}

export function isSameDay(a: Date, b: Date): boolean {
  return (
    a.getFullYear() === b.getFullYear() &&
    a.getMonth() === b.getMonth() &&
    a.getDate() === b.getDate()
  );
}

export function getTimeAgo(date: Date): string {
  const now = new Date();
  const diffMs = now.getTime() - date.getTime();
  const diffMins = Math.floor(diffMs / 60000);
  if (diffMins < 1) return strings.time.relative.justNow;
  if (diffMins < 60) return strings.time.relative.minutesAgo(diffMins);
  const diffHours = Math.floor(diffMins / 60);
  if (diffHours < 24) return strings.time.relative.hoursAgo(diffHours);
  return date.toLocaleDateString();
}