import { HistoryVisibility, JoinRule } from 'matrix-js-sdk';

/**
 * [Gitea #133] One sentence for Room Settings → General, under the name:
 * "Encrypted · Invite only · History visible to members since they joined".
 * Wording mirrors the room preview card chips and the history-visibility
 * setting so the same words mean the same thing everywhere.
 */
export function describeRoomVisibility(input: {
  encrypted: boolean;
  joinRule?: string;
  historyVisibility?: string;
}): string {
  const parts: string[] = [input.encrypted ? 'Encrypted' : 'Not encrypted'];
  switch (input.joinRule) {
    case JoinRule.Public:
      parts.push('Anyone can join');
      break;
    case JoinRule.Knock:
    case 'knock_restricted':
      parts.push('Ask to join');
      break;
    case JoinRule.Restricted:
      parts.push('Restricted');
      break;
    case JoinRule.Private:
      parts.push('Private');
      break;
    case JoinRule.Invite:
    default:
      parts.push('Invite only');
  }
  switch (input.historyVisibility) {
    case HistoryVisibility.WorldReadable:
      parts.push('History visible to anyone, even guests');
      break;
    case HistoryVisibility.Invited:
      parts.push('History visible to members since they were invited');
      break;
    case HistoryVisibility.Joined:
      parts.push('History visible to members since they joined');
      break;
    case HistoryVisibility.Shared:
    default:
      // "shared" is also the spec default when the state event is absent.
      parts.push('History visible to members, including before they joined');
  }
  return parts.join(' · ');
}