soundbirder/controllers/api.js

require('dotenv').config();
const debug = require('debug')('soundbirder:api');
const debugLocale = require('debug')('soundbirder:locale');
const debugResponses = require('debug')('soundbirder:api:responses');
const quizzController = require('./quizz');
const { getRegion } = require('./region');

const QUIZZ_SIZE = process.env.QUIZZ_SIZE ? process.env.QUIZZ_SIZE : 5;

function getHome(req, res) {
    res.render('api', {
        title: "SoundBirder API",
        version: 0
    });
}

async function region(req, res) {
    let {lat, lon} = req.query;
    lat = parseFloat(lat);
    lon = parseFloat(lon);
    const region = await getRegion(lat, lon);
    res.json({
        region
    })
}

async function quizz(req, res) {
    debug('Generating quizz');
    const { region } = req.query;
    // debug(`Coordinates: ${lat}, ${lng}`);
    const locale = req.i18n.locale;
    debugLocale("Locale:", locale);
    quizzController.getQuizzCached(region, locale, QUIZZ_SIZE)
        .then(({ species, answer, audio }) => {
            req.session.answer = answer;
            res.json({ species, audio }).send();
            debug("Quizz sent");
            quizzController.cacheQuizz(); // Prepare the next question in advance.
            debug("New quizz cached");
        })
        .catch(error => {
            debug("Faced error while generating quizz");
            debug(error)
        });
}

function check(req, res) {
    let answer, correct;
    try {
        answer = req.query.species;
        correct = req.session.answer;
    } catch (error) {
        console.error(error);
    }
    let result = {};
    try {
        if (correct === undefined) {
            console.error("No answer found in session");
        } else if (answer === correct.speciesCode) {
            debug("Correct answer");
            result = {
                correct: true,
                message: req.i18n.__('Correct!'),
                answer: correct
            };
        } else {
            debug("Wrong answer");
            result = {
                correct: false,
                message: req.i18n.__('Wrong!'),
                answer: correct
            };
        }
    } catch (error) {
        console.error(error);
    }
    res.json(result);
}

const game = {
    check,
    quizz
}

module.exports = {
    getHome,
    game,
    region
}