// The Discord instance
const Discord = require("discord.js");
// Our configurations
const config = require("./config.json");
 
// Build LUIS's base url
const baseURL = `${config.LUIS.URL}luis/prediction/v3.0/apps/${config.LUIS.APP_ID}/slots/production`;
 
// Axios instance, for the requests
const axios = require('axios');
let myAxiosInstance = axios.create({
    baseURL: baseURL
});
 
// Creating the Discord client
const client = new Discord.Client();
 
client.on('ready', () => {
    console.info(`Beep boop, this is ${client.user.tag}! Boop Beep!`);
});
 
// The message listener
client.on('message', (message) => {
    // If the message was sent by the bot itself, ignore it. Otherwise, the bot will be in loop.
    if (message.author == client.user) {
        return;
    }
 
    // If the message has any content (panaroia check)
    if (message && message.content && message.content != '') {
 
        // Calls LUIS
        myAxiosInstance.get("/predict", {
            "params": {
                "subscription-key": config.LUIS.PRIMARY_KEY,
                "query": message.content
            }
        }).then(response => {
            // Handle the food request
            let responseMessage = handleFoodRequest(response.data);
            message.reply(responseMessage);
        }).catch(error => {
            // We don't want our bot to stop if something goes wrong
            console.log(error);
        });
    }
});
 
// Login in the client
client.login(config.BOT_TOKEN);
 
function handleFoodRequest(requestData) {
    let message = "I couldn't understand your request. Can you be more specific?";
    let prediction = requestData.prediction;
 
    try {
        if (prediction) {
            switch(prediction.topIntent){
                // Notice how my intent and entities have spaces.
                // Spaces on JSON properties are quite ugly but... bear with me on this one
                case "Ask for food":
                    let food = prediction.entities["Ask food action"][0].food[0];
                    let modifier = '';
 
                    if (prediction.entities["Ask food action"][0]['food modifier']) {
                        modifier = prediction.entities["Ask food action"][0]['food modifier'][0];
                    }
                    
                    message = `Sure! Here's a ${modifier} ${food}!`;
                    break;
            }
        }
    } catch (error) {
        console.log(error);
    }
 
    return message;

//
//
//
//
//
//