index.js

//Starting files to import Discord functionality and config files for bot.
const { Client } = require("discord.js");
const { config } = require("dotenv"); 

const client = new Client();


const fs = require('fs');
const Discord = require('discord.js');
const helper = require("./helper");
const setConstantReminder = require("./commands/setConstantReminder");
const constantRemind = require("./commands/constantRemind");
const { SSL_OP_SSLEAY_080_CLIENT_DH_BUG } = require("constants");
client.commands = new Discord.Collection();
const commandFiles = fs.readdirSync('./commands').filter(file => file.endsWith('.js'))

let boolean = 0;

//Path for token.
config({
    path: __dirname + "/.env"
});

//Turn the bot on and set presence. 
client.on("ready", () => {
    console.log("BBBE Bot is online!");

    client.user.setPresence({
        status: "online",
        game: {
            name: "our awesome group!",
            type: "WATCHING"
        }
    })
    todayschedule();
    schedule();
    console.log("Finished schedule");
    constantRe();
    schedule2();
    console.log("Finished Schedule2");
    notifyAssignments();
    timetest();
    console.log("Finished time test");
});

for (const file of commandFiles){
    const command = require(`./commands/${file}`);
    client.commands.set(command.name, command);
}


//Handles messages
client.on("message", async message => {
    //Prefix for all commands
    const prefix = "!";

    //If the message does not start with prefix ignore it.
    if(!message.content.startsWith(prefix) || message.author.bot) return; 

    //If message does have prefix splice it by spaces for analysis. We use regex to account for multiple spaces.
    const args = message.content.slice(prefix.length).trim().split(/ +/);
    const command = args.shift().toLowerCase();

    if (!client.commands.has(command)) return;
    try {
        client.commands.get(command).execute(message, args);
        //console.log(`${command}\t${message}\t${args}`)
    }
    catch(error){
        console.error(error);
        message.reply('Command error');
    }
    console.log(`${message.author.username} said: ${message.content}`);
});

client.login(process.env.TOKEN);



function timetest(){
    setTimeout(function(){
        notifyAssignments();
        timetest();
    }, 15*1000*60); //every 15 mins
}

function schedule(){
    setTimeout(function(){
        todayschedule();
        schedule();
    },300*1000*60);
}
function schedule2(){
    if(boolean==0){
        setTimeout(function(){
            constantRe();
            boolean = 1;
            schedule2();
        },1000)
    }
    else{
        setTimeout(function(){
            boolean = 0;
            schedule2();
        },1000*60*30)
    }
}
function constantRe(){
    let users = []; //array of users to notify
    if(fs.existsSync('usersToNotify.json'))  {
        const data = JSON.parse(fs.readFileSync('usersToNotify.json'));
        //get users to notify
        for (key in data){
            if (data[key] == "1") {
               users.push(key);
            }
        }

        for (let i = 0; i < users.length; i++){ //for every user
            console.log(users[i]);
            let uid = users[i].substring(2).slice(0, -1);
            if(!fs.existsSync('./constantReminders.json')){
                break;
            }
            const data = fs.readFileSync('./constantReminders.json');
            let objs = JSON.parse(data);
            if(objs[users[i]] == undefined){
                continue;
            }

            let promises = []
            promises.push(client.users.fetch(uid))
            Promise.all(promises).then((results) => {
                var today = new Date();
                var day = today.getDay();
                var daylist = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
                console.log("Today is : " + daylist[day] + ".");
                var hour = today.getHours();
                var minute = today.getMinutes();
                var second = today.getSeconds();
                var prepand = (hour >= 12)? "PM":"AM";
                hour = (hour >= 12)? hour - 12: hour;
                if (hour===0 && prepand==='PM') 
                { 
                if (minute===0 && second===0)
                { 
                hour=12;
                } 
                else
                { 
                hour=12;
                prepand='PM';
                } 
                } 
                if (hour===0 && prepand==='AM') 
                { 
                if (minute===0 && second===0)
                { 
                hour=12;
                } 
                else
                { 
                hour=12;
                } 
                } 
              console.log("Current Time : "+hour + prepand + " : " + minute + " : " + second);
                for(var j = 0; j < objs[users[i]].length; j++){
                    if(objs[users[i]][j].day===daylist[day]){
                        if(parseInt(objs[users[i]][j].hour)===hour){
                            client.users.cache.get(uid).send(`Remember:\n${objs[users[i]][j].name} at ${objs[users[i]][j].hour}:${objs[users[i]][j].minute}:${objs[users[i]][j].second} ${objs[users[i]][j].timeofday}\n`)
                            boolean = 1;
                            if(parseInt(objs[users[i]][j].minute)===minute){
                                if(objs[users[i]][j].timeofday===prepand){
                                    client.users.cache.get(uid).send(`Remember:\n${objs[users[i]][j].name} at ${objs[users[i]][j].hour}:${objs[users[i]][j].minute}:${objs[users[i]][j].second} ${objs[users[i]][j].timeofday}\n`)
                                }
                            }
                        }
                    }
                }
            })    
        }



    }
}
function todayschedule(){
    let users = []; //array of users to notify
    if(fs.existsSync('usersToNotify.json'))  {
        const data = JSON.parse(fs.readFileSync('usersToNotify.json'));
        //get users to notify
        for (key in data){
            if (data[key] == "1") {
               users.push(key);
            }
        }

        for (let i = 0; i < users.length; i++){ //for every user
            console.log(users[i]);
            let uid = users[i].substring(2).slice(0, -1);
            if(!fs.existsSync('./constantReminders.json')){
                break;
            }
            const data = fs.readFileSync('./constantReminders.json');
            let objs = JSON.parse(data);
            if(objs[users[i]] == undefined){
                continue;
            }
            var today = new Date();
            var day = today.getDay();
            var daylist = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
            console.log("Today is : " + daylist[day] + ".");
            let promises = []
            promises.push(client.users.fetch(uid))
            Promise.all(promises).then((results) => {
                console.log(results[0].id)
                client.users.cache.get(results[0].id).send("Today you have:\n");
                for(var j = 0; j < objs[users[i]].length; j++){
                    if(objs[users[i]][j].day===daylist[day]){
                        client.users.cache.get(results[0].id).send(`${objs[users[i]][j].name} at ${objs[users[i]][j].hour}:${objs[users[i]][j].minute}:${objs[users[i]][j].second} ${objs[users[i]][j].timeofday}\n`)
                    }
                }  
            })    
        }



    }
}

function notifyAssignments(){

    let users = []; //array of users to notify
    if(fs.existsSync('usersToNotify.json'))  {
        const data = JSON.parse(fs.readFileSync('usersToNotify.json'));
        //get users to notify
        for (key in data){
            if (data[key] == "1") {
               users.push(key);
            }
        }

        for (let i = 0; i < users.length; i++){ //for every user
            //get access token
            let token = helper.getUserToken(users[i]);
            
            //get course ids
            let courseIDs = [];
            let uid = users[i].substring(2).slice(0, -1);
            let courses = helper.getUserCourses(uid);
            console.log(uid)
            for (key in courses){
                courseIDs.push(key);
                ///console.log(key);
            }

            let promises = []; //list of promises for assignments
            for (let j = 0; j < courseIDs.length; j++){
                //go through all courses and all assignments
                let url = "https://canvas.instructure.com/api/v1/courses/" + courseIDs[j] + "/assignments?per_page=50&access_token=" + token;
                promises.push(helper.httpsGetJSON2(url));
            }

            Promise.all(promises).then((results) => { //when all calls are made, print assignments
                //console.log(results[1][0].name);
                for (let j = 0; j < results.length; j++){
                    for (let k = 0; k < results[j].length; k++){
                        //if (helper.dateInFuture(results[i].due_at))
                        if (results[j][k] != undefined && results[j][k].due_at != null && helper.dateInFuture(results[j][k].due_at)){
                            //console.log(results[j][k].name)
                            if (helper.isDue(results[j][k].due_at, 1, 0, 0, 15))
                                client.users.cache.get(uid).send(results[j][k].name + "is due in 1 day.")
                            else if (helper.isDue(results[j][k].due_at, 0, 3, 0, 15))
                                client.users.cache.get(uid).send(results[j][k].name + "is due in 3 hours.")
                            else if (helper.isDue(results[j][k].due_at, 0, 1, 0, 15))
                                client.users.cache.get(uid).send(results[j][k].name + "is due in 1 hour.")
                            else if (helper.isDue(results[j][k].due_at, 0, 0, 30, 15))
                                client.users.cache.get(uid).send(results[j][k].name + "is due in 30 minutes.")
                        }
                    }
                }
                //console.log(results);
            });



        }



    }
}