bot.js

// Twitter library
var Twit = require('twit');
// Need to include configuration file
var T = new Twit(require('./config.js'));

var fs = require('fs');

var path = require('path');

var lovePhrases1 = [ "good morning ",
                    "my love! ",
                    "daily reminder: ",
                    "don't forget! ",
                   	"hey there girls and gays ",
                   	"PSA! ",
                   	"boys and gals! ",
                   	"yo! ",
                   	"hey man, ",
                   	"hello! ",
                   	"hey there friend, ",
                   	"important news!! ",
                   	"hey cutie ;) ",
                   	"*ryan gosling voice* hey girl - ",
                   	"hi :) ",
                   	"hello friend ",
                   	"don't worry - ",
                   	"a concept: " ];
                    //18 lovePhrases1's

var lovePhrases2 = [ "go get that bread",
                  	"i love you",
                  	"u look cute today",
                  	"u are loved",
                  	"you're doing your best",
                  	"your emotions are valid!",
                  	"it's ok to ask for help!",
                  	"stay hydrated",
                  	"kiss your homies goodnight",
                  	"check on your friends",
                  	"try not to compare yourself to others",
                  	"be kind to yourself",
                  	"self care is key",
                  	"be sure to compliment yourself today",
                  	"pat a nice dog today",
                  	"call your mom",
                  	"call your dad",
                  	"take a break",
                  	"u deserve to be loved",
                  	"tell your friends u love them",
                  	"u don't deserve your toxic relationship",
                  	"someone is starry-eyed for u",
                  	"trust the moon",
                  	"u are made of stars",
                  	"the planets believe in u",
                  	"don't give up!",
                  	"hope is powerful" ,
                  	"u don't have to be perfect",
                  	"take time to do what makes your soul happy",
                  	"surround yourself with people, color, sounds, and work that nourish you",
                  	"make your happiness a priority",
                  	"self-care is not selfish",
                  	"take the time to love yourself today",
                  	"pet a nice kitty today"];
                    //34 lovePhrases2's

function chooseRandom(myArray) {
  return myArray[Math.floor(Math.random() * myArray.length)];
}

//randomly select strings from arrays
function random_from_array(images){
	return images[Math.floor(Math.random() * images.length)];
}

var tweetInd = 1;

function upload_random_image(images){

  //combine the two randomly-selected strings for one full phrase
	var lovePhrase = chooseRandom(lovePhrases1) + chooseRandom(lovePhrases2);
  //612 possible phrases

	console.log('Opening an image...');
  var image_path = path.join(__dirname, '/images/' + random_from_array(images)),
  b64content = fs.readFileSync(image_path, { encoding: 'base64' });
  //media has to be in base 64 to be uploaded (according to Twitter)

  console.log('Uploading an image...');

  //media/upload and statuses/update are Twitter-specific functions
  //check Twitter developer site for more information or other function
  //(such as rewteeting and favoriting)
  T.post('media/upload', { media_data : b64content }, function (err, data, response) {
      if (err){
	      console.log('ERROR:');
	      console.log(err);
	    }
	    else{
	      console.log('Image uploaded!');
	      console.log('Now tweeting it...');
	      T.post('statuses/update', {
	        		status: lovePhrase,
	        		media_ids: new Array(data.media_id_string)
	      		}, //status: and media_ids: are also Twitter's own variable names
	        	function(err, data, response) {
	        		if (err){
	            		console.log('ERROR:');
	            		console.log(err);
	          		} else{
	            		console.log('Tweet #' + tweetInd + ' posted!');
                  tweetInd = tweetInd + 1;
                  //checking to see which tweets are successful
	          		}
	        	}
	     	);
    	}
  	});
}

//make sure that your images folder is in the same folder or change '/images'
//in order to reflect your name and location of your images
fs.readdir(__dirname + '/images', function(err, files) {
	if (err){
    	console.log(err);
  	}
  	else{
    	var images = [];
    	files.forEach(function(f) {
      		images.push(f);
    	});
  	}
    //initial post to start timer
  	upload_random_image(images);
    //setting timer after initial post for every 2 hours
  	setInterval(function(){
    	upload_random_image(images);
    	}, 2 * 1000 * 60 * 60);
      //1000 miliseconds -> seconds
      //seconds -> minutes -> 2 hours
});