import type { ReactNode } from 'react';
import { Badge } from '@/components/ui/badge';
import { Label } from '@/components/ui/label';

export function SectionHeading({ children }: { children?: ReactNode }) {
  return <h2 className="text-base font-semibold text-foreground">{children}</h2>;
}

export function FieldRow({ label, children }: { label?: ReactNode; children?: ReactNode }) {
  return (
    <div className="grid gap-2 lg:grid-cols-[200px_1fr] lg:items-center lg:gap-4">
      <Label className="text-muted-foreground lg:text-right">{label}</Label>
      {children}
    </div>
  );
}

export function Toggle({ checked, onChange, label, disabled = false }: {
  checked: boolean;
  onChange: (checked: boolean) => void;
  label?: string;
  disabled?: boolean;
}) {
  return (
    <button
      type="button"
      role="switch"
      aria-checked={checked}
      disabled={disabled}
      onClick={() => !disabled && onChange(!checked)}
      className={`relative inline-flex h-5 w-9 shrink-0 rounded-full border-2 border-transparent transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring ${disabled ? 'cursor-not-allowed opacity-50' : 'cursor-pointer'} ${checked ? 'bg-primary' : 'bg-input'}`}
    >
      <span className={`pointer-events-none inline-block h-4 w-4 rounded-full bg-background shadow-lg ring-0 transition-transform ${checked ? 'translate-x-4' : 'translate-x-0'}`} />
      {label && <span className="sr-only">{label}</span>}
    </button>
  );
}

export function formatDateTime(value: string | null | undefined): string {
  if (!value) return '—';
  const date = new Date(value);
  if (Number.isNaN(date.getTime())) return value;
  return date.toLocaleString();
}

export function BackupTypeBadge({ type }: { type?: string | null }) {
  const map: Record<string, string> = {
    manual: 'bg-blue-500/15 text-blue-400 border-blue-500/20',
    scheduled: 'bg-emerald-500/15 text-emerald-400 border-emerald-500/20',
    imported: 'bg-violet-500/15 text-violet-400 border-violet-500/20',
    'pre-restore': 'bg-amber-500/15 text-amber-400 border-amber-500/20',
  };
  const cls = map[type ?? ''] || 'bg-muted text-muted-foreground border-border';

  return <Badge className={cls}>{type || 'backup'}</Badge>;
}