聊天：最近私聊历史相关逻辑

game-server/app/services/chatService.ts

@@ -9,12 +9,13 @@ import { PrivateMessageModel, PrivateMessageParam, PrivateMessageType } from './
 import { GroupMessageParam, GroupMessageType } from '../db/GroupMessage';
 import { genCode, resResult } from '../pubUtils/util';
 import { pinus } from 'pinus';
-import { CHANNEL_PREFIX, MSG_CODE_LEN, MSG_SOURCE, MSG_STATUS, MSG_TYPE, ON_GROUP_MSG_ROUTE, ON_MSG_ROUTE, RICH_TEXT_TABLE } from '../consts';
+import { CHANNEL_PREFIX, MSG_CODE_LEN, MSG_SOURCE, MSG_STATUS, MSG_TYPE, ON_GROUP_MSG_ROUTE, ON_MSG_ROUTE, RICH_TEXT_TABLE, RECENT_PRIVATE_CHATS_CNT, MAX_PRIVATE_MSGS } from '../consts';
 import { addRedisChannel, getRoleOnlineInfo, redisChannelServer } from './redisService';
 import { crc32 } from 'crc';
 import { HeroType } from '../db/Hero';
 import { GuildType } from '../db/Guild';
 import { GuildTrainType } from '../db/GuildTrain';
+import { ChatInfoModel } from '../db/ChatInfo';
 
 /**
  * @description 生成私聊房间号
@@ -272,3 +273,37 @@ export async function pushGuildBossSucMsg(roleId: string, roleName: string, guil
     await pushGroupMsgToRoom(groupRoomId(CHANNEL_PREFIX.GUILD, guildCode), msgData);
     return msgData;
 }
+
+export async function roleChatInfos(roleId: string, roleName: string) {
+    let result = await ChatInfoModel.findInfo(roleId);
+    if (!result) {
+        result = await ChatInfoModel.createInfo({ roleId, roleName });
+    }
+    return result;
+}
+
+export async function recentPrivateChatInfos(roleId: string, roleName: string) {
+    const { recentPrivateChats } = await roleChatInfos(roleId, roleName);
+    const sortedChats = recentPrivateChats
+        .sort((a, b) => a.lastChatTime.getTime() - b.lastChatTime.getTime())
+        .splice(RECENT_PRIVATE_CHATS_CNT);
+    if (!sortedChats || !sortedChats.length) return null;
+
+    const unreadChats = sortedChats.filter(chat => { return chat.lastChatTime > chat.lastReadTime });
+    let unreadMsgs = {};
+    for (let { targetRoleId, lastReadTime } of unreadChats) {
+        const msgs = await PrivateMessageModel.getMsgsByTime(privateRoomId(roleId, targetRoleId), lastReadTime, MAX_PRIVATE_MSGS);
+        unreadMsgs[targetRoleId] = msgs;
+    }
+
+    const roleInfos = await RoleModel.findRoleByField('roleId', sortedChats.map(chat => { return chat.targetRoleId }));
+    const chatInfos = sortedChats.map( chat => {
+        for (let { roleId: targetRoleId, quitTime, roleName: targetRoleName, title, guildName, headHid, sHid, lv } of roleInfos) {
+            if (targetRoleId === chat.targetRoleId) {
+                const unreadCnt = unreadMsgs[targetRoleId] ? unreadMsgs[targetRoleId].length : 0;
+                return { ...chat, quitTime, targetRoleName, title, guildName, headHid, sHid, lv, unreadCnt };
+            }
+        }
+    });
+    return chatInfos;
+}