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83 lines
2.2 KiB
TypeScript
83 lines
2.2 KiB
TypeScript
import { getReduxStore, isValidStr } from '..';
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import { getCachedConverseInfo, getCachedUserInfo } from '../cache/cache';
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import { t } from '../i18n';
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import type { ChatConverseInfo } from '../model/converse';
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import { appendUserDMConverse } from '../model/user';
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import type { FriendInfo } from '../redux/slices/user';
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/**
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* 确保私信会话存在
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*/
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export async function ensureDMConverse(
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converseId: string,
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currentUserId: string
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): Promise<ChatConverseInfo> {
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const converse = await getCachedConverseInfo(converseId);
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if (converse === null) {
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// TODO
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throw new Error(t('找不到私信会话'));
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}
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if (!converse.members.includes(currentUserId)) {
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throw new Error(t('会话没有权限'));
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}
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await appendUserDMConverse(converseId); // 添加到私人会话列表
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return converse;
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}
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export function buildFriendNicknameMap(
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friends: FriendInfo[]
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): Record<string, string> {
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const friendNicknameMap: Record<string, string> = friends.reduce(
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(prev, curr) => {
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return {
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...prev,
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[curr.id]: curr.nickname,
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};
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},
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{}
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);
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return friendNicknameMap;
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}
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/**
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* 获取私信会话的会话名
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* @param userId 当前用户的ID(即自己)
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* @param converse 会话信息
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*/
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export async function getDMConverseName(
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userId: string,
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converse: Pick<ChatConverseInfo, 'name' | 'members'>
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): Promise<string> {
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if (isValidStr(converse.name)) {
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return converse.name;
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}
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const otherConverseMembers = converse.members.filter((m) => m !== userId); // 成员Id
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const otherMembersInfo = await Promise.all(
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otherConverseMembers.map((memberId) => getCachedUserInfo(memberId))
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);
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const friends = getReduxStore().getState().user.friends;
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const friendNicknameMap = buildFriendNicknameMap(friends);
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const memberNicknames = otherMembersInfo.map((m) => {
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if (friendNicknameMap[m._id]) {
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return friendNicknameMap[m._id];
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}
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return m.nickname ?? '';
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});
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const len = memberNicknames.length;
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if (len === 1) {
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return memberNicknames[0] ?? '';
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} else if (len === 2) {
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return `${memberNicknames[0]}, ${memberNicknames[1]}`;
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} else {
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return `${memberNicknames[0]}, ${memberNicknames[1]} ...`;
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}
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}
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