session-desktop/ts/hooks/useParamSelector.ts

import { useSelector } from 'react-redux';
import { PubKey } from '../session/types';
import { UserUtils } from '../session/utils';
import { StateType } from '../state/reducer';

export function useAvatarPath(convoId: string | undefined) {
  const convoProps = useConversationPropsById(convoId);
  return convoProps?.avatarPath || null;
}

export function useOurAvatarPath() {
  return useAvatarPath(UserUtils.getOurPubKeyStrFromCache());
}

/**
 *
 * @returns convo.profileName || convo.name || convo.id or undefined if the convo is not found
 */
export function useConversationUsername(convoId?: string) {
  const convoProps = useConversationPropsById(convoId);

  return convoProps?.profileName || convoProps?.name || convoId;
}

/**
 * Returns either the nickname, profileName, or the shorten pubkey
 */
export function useConversationUsernameOrShorten(convoId?: string) {
  const convoProps = useConversationPropsById(convoId);

  return convoProps?.profileName || convoProps?.name || (convoId && PubKey.shorten(convoId));
}

/**
 * Returns either the nickname, the profileName, in '"' or the full pubkeys given
 */
export function useConversationsUsernameWithQuoteOrFullPubkey(pubkeys: Array<string>) {
  return useSelector((state: StateType) => {
    return pubkeys.map(pubkey => {
      if (pubkey === UserUtils.getOurPubKeyStrFromCache() || pubkey.toLowerCase() === 'you') {
        return window.i18n('you');
      }
      const convo = state.conversations.conversationLookup[pubkey];
      const nameGot = convo?.profileName || convo?.name;
      return nameGot?.length ? `"${nameGot}"` : pubkey;
    });
  });
}

export function useOurConversationUsername() {
  return useConversationUsername(UserUtils.getOurPubKeyStrFromCache());
}

export function useIsMe(pubkey?: string) {
  return pubkey && pubkey === UserUtils.getOurPubKeyStrFromCache();
}

export function useIsClosedGroup(convoId?: string) {
  const convoProps = useConversationPropsById(convoId);
  return (convoProps && convoProps.isGroup && !convoProps.isPublic) || false;
}

export function useIsPrivate(convoId?: string) {
  const convoProps = useConversationPropsById(convoId);
  return Boolean(convoProps && convoProps.isPrivate);
}

export function useIsPinned(convoId?: string) {
  const convoProps = useConversationPropsById(convoId);
  return Boolean(convoProps && convoProps.isPinned);
}

export function useConversationPropsById(convoId?: string) {
  return useSelector((state: StateType) => {
    if (!convoId) {
      return null;
    }
    const convo = state.conversations.conversationLookup[convoId];
    if (!convo) {
      return null;
    }
    return convo;
  });
}