import { connectionMongo, type Model } from '../../common/mongo';
const { Schema, model, models } = connectionMongo;
import { ChatSchema as ChatType } from '@fastgpt/global/core/chat/type.d';
import { ChatSourceMap } from '@fastgpt/global/core/chat/constants';
import {
  TeamCollectionName,
  TeamMemberCollectionName
} from '@fastgpt/global/support/user/team/constant';
import { appCollectionName } from '../app/schema';

export const chatCollectionName = 'chat';

const ChatSchema = new Schema({
  chatId: {
    type: String,
    require: true
  },
  userId: {
    type: Schema.Types.ObjectId,
    ref: 'user'
  },
  teamId: {
    type: Schema.Types.ObjectId,
    ref: TeamCollectionName,
    required: true
  },
  tmbId: {
    type: Schema.Types.ObjectId,
    ref: TeamMemberCollectionName,
    required: true
  },
  appId: {
    type: Schema.Types.ObjectId,
    ref: appCollectionName,
    required: true
  },
  updateTime: {
    type: Date,
    default: () => new Date()
  },
  title: {
    type: String,
    default: '历史记录'
  },
  customTitle: {
    type: String,
    default: ''
  },
  top: {
    type: Boolean,
    default: false
  },
  source: {
    type: String,
    enum: Object.keys(ChatSourceMap),
    required: true
  },
  shareId: {
    type: String
  },
  outLinkUid: {
    type: String
  },
  variables: {
    type: Object,
    default: {}
  },
  metadata: {
    //For special storage
    type: Object,
    default: {}
  }
});

try {
  ChatSchema.index({ chatId: 1 }, { background: true });
  // get user history
  ChatSchema.index({ tmbId: 1, appId: 1, top: -1, updateTime: -1 }, { background: true });
  // delete by appid; clear history; init chat; update chat; auth chat; get chat;
  ChatSchema.index({ appId: 1, chatId: 1 }, { background: true });

  // get chat logs;
  ChatSchema.index({ teamId: 1, appId: 1, updateTime: -1 }, { background: true });
  // get share chat history
  ChatSchema.index({ shareId: 1, outLinkUid: 1, updateTime: -1, source: 1 }, { background: true });
} catch (error) {
  console.log(error);
}

export const MongoChat: Model<ChatType> =
  models[chatCollectionName] || model(chatCollectionName, ChatSchema);
MongoChat.syncIndexes();
