feat: sendPackedMessage & getMessages

src/laana/action/message.ts

@@ -4,6 +4,7 @@ import { LaanaActionHandler } from '../action';
 import fs from 'fs';
 import { ForwardMessagePing_Operation } from '@laana-proto/def';
 
+// TODO: separate implementation and handler
 export class LaanaMessageActionHandler {
     constructor(
         public core: NapCatCore,
@@ -52,14 +53,31 @@ export class LaanaMessageActionHandler {
             };
         },
 
+        sendPackedMessages: async (params) => {
+            // first send every single message to self, then forward them to target peer
+
+            // send message one by one
+            const sendMsgIds: string[] = [];
+            for (const message of params.messages) {
+                sendMsgIds.push((await this.impl.sendMessage!({ targetPeer: params.targetPeer, message })).msgId);
+            }
+
+            await this.impl.forwardMessage!({
+                msgIds: sendMsgIds,
+                targetPeer: params.targetPeer,
+                operation: ForwardMessagePing_Operation.AS_PACKED,
+            });
+
+            return {
+                packedMsgId: '', // unimplemented
+                msgIds: sendMsgIds,
+            };
+        },
+
         getMessage: async (params) => {
             const { msgId, chatType, peerUid } = this.laana.utils.msg.decodeLaanaMsgId(params.msgId);
             const msgListWrapper = await this.core.apis.MsgApi.getMsgsByMsgId(
-                {
+                { chatType, peerUid, guildId: '' },
-                    chatType,
-                    peerUid,
-                    guildId: '',
-                },
                 [msgId],
             );
             if (msgListWrapper.msgList.length === 0) {
@@ -71,6 +89,46 @@ export class LaanaMessageActionHandler {
             };
         },
 
+        getMessages: async (params) => {
+            if (params.msgIds.length === 0) {
+                throw new Error('消息 ID 列表不能为空');
+            }
+
+            const msgIdWrappers = params.msgIds.map(msgId => this.laana.utils.msg.decodeLaanaMsgId(msgId));
+
+            // check whether chatType and peerUid for each message are the same
+            const firstMsg = msgIdWrappers[0];
+            if (msgIdWrappers.some(msg => msg.chatType !== firstMsg.chatType || msg.peerUid !== firstMsg.peerUid)) {
+                return {
+                    // one request per message
+                    messages: await Promise.all(
+                        params.msgIds.map(msgId => this.laana.utils.msg.decodeLaanaMsgId(msgId))
+                            .map(async ({ msgId, chatType, peerUid }) => {
+                                const msgListWrapper = await this.core.apis.MsgApi.getMsgsByMsgId(
+                                    { chatType, peerUid, guildId: '' },
+                                    [msgId],
+                                );
+                                if (msgListWrapper.msgList.length === 0) {
+                                    throw new Error('消息不存在');
+                                }
+                                return await this.laana.utils.msg.rawMessageToLaana(msgListWrapper.msgList[0]);
+                            })
+                    )
+                };
+            } else {
+                // a single request for all messages
+                const msgListWrapper = await this.core.apis.MsgApi.getMsgsByMsgId(
+                    { chatType: firstMsg.chatType, peerUid: firstMsg.peerUid, guildId: '' },
+                    msgIdWrappers.map(msg => msg.msgId),
+                );
+                return {
+                    messages: await Promise.all(
+                        msgListWrapper.msgList.map(msg => this.laana.utils.msg.rawMessageToLaana(msg)),
+                    ),
+                };
+            }
+        },
+
         getForwardedMessages: async (params) => {
             const { rootMsgLaanaId, currentMsgId } = this.laana.utils.msg.decodeLaanaForwardMsgRefId(params.refId);
             const decodedRootMsgId = this.laana.utils.msg.decodeLaanaMsgId(rootMsgLaanaId);