File input (#2270)

* doc

* feat: file upload  config

* perf: chat box file params

* feat: markdown show file

* feat: chat file store and clear

* perf: read file contentType

* feat: llm vision config

* feat: file url output

* perf: plugin error text

* perf: image load

* feat: ai chat document

* perf: file block ui

* feat: read file node

* feat: file read response field

* feat: simple mode support read files

* feat: tool call

* feat: read file histories

* perf: select file

* perf: select file config

* i18n

* i18n

* fix: ts; feat: tool response preview result

packages/service/core/chat/controller.ts

@@ -2,6 +2,9 @@ import type { ChatItemType, ChatItemValueItemType } from '@fastgpt/global/core/c
 import { MongoChatItem } from './chatItemSchema';
 import { addLog } from '../../common/system/log';
 import { ChatItemValueTypeEnum } from '@fastgpt/global/core/chat/constants';
+import { delFileByFileIdList, getGFSCollection } from '../../common/file/gridfs/controller';
+import { BucketNameEnum } from '@fastgpt/global/common/file/constants';
+import { MongoChat } from './chatSchema';
 
 export async function getChatItems({
   appId,
@@ -75,3 +78,40 @@ export const addCustomFeedbacks = async ({
     addLog.error('addCustomFeedbacks error', error);
   }
 };
+
+/* 
+  Delete chat files
+  1. ChatId: Delete one chat files
+  2. AppId: Delete all the app's chat files
+*/
+export const deleteChatFiles = async ({
+  chatIdList,
+  appId
+}: {
+  chatIdList?: string[];
+  appId?: string;
+}) => {
+  if (!appId && !chatIdList) return Promise.reject('appId or chatIdList is required');
+
+  const appChatIdList = await (async () => {
+    if (appId) {
+      const appChatIdList = await MongoChat.find({ appId }, { chatId: 1 });
+      return appChatIdList.map((item) => String(item.chatId));
+    } else if (chatIdList) {
+      return chatIdList;
+    }
+    return [];
+  })();
+
+  const collection = getGFSCollection(BucketNameEnum.chat);
+  const where = {
+    'metadata.chatId': { $in: appChatIdList }
+  };
+
+  const files = await collection.find(where, { projection: { _id: 1 } }).toArray();
+
+  await delFileByFileIdList({
+    bucketName: BucketNameEnum.chat,
+    fileIdList: files.map((item) => String(item._id))
+  });
+};