openai-events.js

import {ask_gpt, initiate_gpt} from 'backend/openai.js';
import wixChatBackend from 'wix-chat-backend';
import wixData from 'wix-data';

export function wixChat_onMessage(event) {
  if(event.direction === 'VisitorToBusiness') {
    console.log('Chat was commenced');
    commence(event);
  }
}

const commence = (event) => {
  wixData.query('gpt_chat').eq('channelId', event.channelId).find()
  .then( async(res) => {
    console.log('Query comepleted');
    if(res.items.length > 0) {
      //Existing Chat
      let gpt_res = await ask_gpt(event.payload.text, event.sender.id)
      gpt_response(gpt_res, event.channelId, event.payload.text);
    } else {
      //New Chat
      let obj = {
        channelId: event.channelId,
        userId: event.sender.id
      };
      wixData.insert('gpt_chat', obj);
      let gpt_res = await initiate_gpt(event.sender.id)
      let gpt_res2 = await ask_gpt(event.payload.text, event.sender.id)
      gpt_response(gpt_res2, event.channelId, event.payload.text);
    }
  });
}

const gpt_response = (gpt, chid, prev) => {
  let obj = {
    "messageText": gpt.choices[0].text,
    "channelId": chid,
    "sendAsVisitor": false
  };
  console.log(obj);
  wixChatBackend.sendMessage(obj)
  .then( () => {
    console.log("Chat message sent");
  })
  .catch( (error) => {
    console.log(error);
  });
}

//Sample event VisitorToBusiness:
// {
//   "channelId":"0379888f-e5cb-30c4-86fc-4d0e1ce6a827",
//   "sequence":1676742002559626,
//   "type":"TEXT",
//   "summary":"Testing Again",
//   "participantId":"e2a75cd0-a60b-4d0a-abb5-279fc64a9f10",
//   "createdDate":"2023-02-18T17:40:02.559Z",
//   "metadata":{},
//   "payload":{
//     "text":"Testing Again"
//   },
//   "direction":"VisitorToBusiness",
//   "sender":{
//     "role":"Visitor",
//     "id":"e2a75cd0-a60b-4d0a-abb5-279fc64a9f10"
//   }
// }