import { parseVerstakUrl } from './markdown';

export type InternalLinkType = 'case' | 'note' | 'file' | 'secret' | 'unknown';

export interface InternalLinkInfo {
  type: InternalLinkType;
  id: string;
  label: string;
  icon: string;
}

/**
 * Parse a verstak:// href into structured info.
 */
export function getInternalLinkInfo(href: string): InternalLinkInfo | null {
  const parsed = parseVerstakUrl(href);
  if (!parsed) return null;

  const map: Record<string, { type: InternalLinkType; icon: string }> = {
    case:   { type: 'case',   icon: '📁' },
    note:   { type: 'note',   icon: '📄' },
    file:   { type: 'file',   icon: '📎' },
    secret: { type: 'secret', icon: '🔐' },
  };

  const entry = map[parsed.type];
  if (!entry) {
    return { type: 'unknown', id: parsed.id, label: parsed.id, icon: '🔗' };
  }

  return {
    type: entry.type,
    id: parsed.id,
    label: parsed.id,
    icon: entry.icon,
  };
}

/**
 * Get a human-readable label for an internal link type.
 * These should be overridden via i18n in the UI layer.
 */
export function getDefaultLabel(type: InternalLinkType, id: string): string {
  switch (type) {
    case 'secret': return 'Секрет';
    case 'case':   return 'Дело';
    case 'note':   return 'Заметка';
    case 'file':   return 'Файл';
    default:       return id;
  }
}