const express = require('express');
const app = express.Router();
const expressWs = require('express-ws')(app);

const sqlite = require('better-sqlite3');
const db = new sqlite('the_big_db.db', { verbose: console.log });

const { loginRequired } = require('../authStuff.js');

const { interpret, sockets, lookUpObject, 
  getAttribute, setAttribute, hasOwnAttribute, deleteAttribute,
  findAllVerbsInArea } = require('../interpreter.js');

app.ws('/embody', (ws, req) => {
  const character = req.session.characterId;
  if (!character) {
    ws.send(`user ${req.session.userId} does not have an associated character object`);
    ws.close();
    return;
  }

	sockets.set(character, ws);
  console.log("sending location change, should get attribute for 30");
  ws.send(JSON.stringify({setPageNumber: getAttribute(character, "location")}));

  ws.on('message', async (msg) => { 
    console.log("received message: ", msg);
  	const location = getAttribute(character, "location");

    ws.send(JSON.stringify({"result": await interpret(location, character, msg)}));
  });

  ws.on('close', () => sockets.delete(character));
});

app.get('/embody/verbs', loginRequired, (req, res) => {
  const location = getAttribute(req.session.characterId, "location");
  const verbs = findAllVerbsInArea(location, req.session.characterId);

  const verbWords = Array.from(verbs.map((v) => lookUpObject(v).title));

  res.status(200).json(verbWords);
});


module.exports = app;