server.js

// All required utils for the app 
var express    = require('express');
var bodyParser = require('body-parser');
var Postmates = require('postmates');
var postmates = new Postmates('cus_KeAkAy7GIWj1lF', '51a61f0e-4833-4745-9f3d-c48853e76a71');
var app        = express();
var Parse = require('node-parse-api').Parse;
var unirest = require('unirest');
var CronJob = require('cron').CronJob;

var USER_CELL = "2069138297";
var MSGSRVC_NUM = "+14253104166";


// Parse Credentials
var options = {
	app_id : "2TEGFm48tpsJ7Ki02AbOsXKTbQZKzhc4RFhR7S7p",
	api_key : "tFMOzm7J01GxnoPbGrHDAXGCsrGoeGrZR0Sao7Ny"
};

// Twilio Credentials 
var accountSid = 'AC5924461284cb120e61dc3e381b7ef790'; 
var authToken = '978880b8a6da831e6c982e6bf98b839d'; 

//require the Twilio module and create a REST client 
var client = require('twilio')(accountSid, authToken); 
 
// e... credentials 
var eapp_id = "a750fdb2";
var eapp_key = "143b365c3f4cf72c75d73802ce735614";

var parse = new Parse(options);

// In memory databases
var groceries = {
	"beef" : [2,3],
	"milk" : [5, 7],
	"chicken" : [2,3],
	"bacon" : [7, 14],
	"salmon" : [2, 3],
	"apples" : [10, 14],
	"oranges" : [14, 21],
	"potatoes" : [21, 35],
	"broccoli" : [2, 3],
	"bread" : [5, 7],
	"eggs" : [30,30]
};

var cats = {
	"beef" : "meat",
	"milk" : "dairy",
	"chicken" : "poultry",
	"bacon" : "meat",
	"salmon" : "fish",
	"apples" : "fruits",
	"oranges" : "fruits",
	"potatoes" : "vegetables",
	"broccoli" : "vegetables",
	"bread" : "bakedGoods",
	"eggs" : "eggs"
};

var descriptions = {
	"beef" : "8 oz",
	"milk" : "1 gallons",
	"chicken" : "16 oz",
	"bacon" : "16 oz",
	"salmon" : "9 oz",
	"apples" : "10 ct",
	"oranges" : "10 ct",
	"potatoes" : "1 sack",
	"broccoli" : "4 bunches",
	"bread" : "1 loaf",
	"eggs" : "1 dozen"
};

var abrv = {'bf' : 'beef',
  'mlk' : 'milk',
  'chckn': 'chicken',
  'bcn': 'bacon',
  'slmn': 'salmon',
  'ppls' : 'apples',
  'rngs' : 'oranges',
  'ptts' : 'potatoes',
  'brccl' : 'broccoli',
  'brd' : 'bread',
  "ggs" : "eggs"
};

var price = {
	"beef" : 10.49,
	"milk" : 8.29,
	"chicken" : 6.98,
	"bacon" : 6.99,
	"salmon" : 8.98,
	"apples" : 11.99,
	"oranges" : 5.99,
	"potatoes" : 8.98,
	"broccoli" : 10.99,
	"bread" : 5.99,
	"eggs" : 4.5
};

app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());

var port     = process.env.PORT || 8080; // set our port

var router = express.Router();


var path    = require("path");

app.use(express.static(path.join(__dirname, './')));

app.use("/styles",  express.static(__dirname + '/styles'));
app.use("/js", express.static(__dirname + '/js'));
app.use("/images",  express.static(__dirname + '/images'));

app.get('/',function(req,res){
   res.sendfile(path.join(__dirname + '/index.html'));
});


// middleware to use for all requests
router.use(function(req, res, next) {
	// do logging
	res.header("Access-Control-Allow-Origin", "*");
	res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
  	res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
	console.log('API Being Accessed');
	next();
});

var path    = require("path");

app.use(express.static(path.join(__dirname, './')));

app.use("/styles",  express.static(__dirname + '/styles'));
app.use("/js", express.static(__dirname + '/js'));
app.use("/images",  express.static(__dirname + '/images'));

app.get('/',function(req,res){
	res.sendfile(path.join(__dirname + '/index.html'));
});

app.use('/api', router);

// needs an abreviation to look up (:abrv)
router.route('/abrv/:abrv')
	.get(function(req, res){
		var result = (match(req.params.abrv));
		if (result == null) {
			res.json("No Match found");
		} else {
			res.json(result + " and the expiration date is in " + groceries[result][0] + " day(s)");
		}
	});

// needs a data field in the body with the list from the OCR algorithm 
router.route('/add/multiple')
	.post(function(req, res) {
		var data = req.body.data;
		var prods = determineProducts(data);
		for (var prod in prods) {
			addItemToParse(prod);
		}
		res.json("done");
	});

router.route('/add/single')
	.post(function(req, res) {
		console.log(req.body.name);
		console.log(req.body.description);
		var name = match(req.body.name);
		if (name == null) {
			res.json("Provide a valid name");
			res.send();
		} else {
			var expirationd = getNDaysFromNow(groceries[name][0]);
			var lifetime = groceries[name][0];
			var descrp = req.body.description;
			var category = cats[name];
			var priceTag = price[name];
			var jsonObj = {
				"name" : name,
				"expDate" : expirationd,
				"lifetime" : lifetime,
				"description" : descrp,
				"category": category,
				"price" : priceTag
			};
			parse.insert('foodEntry', jsonObj, function (err, response) {
			  console.log(response);
			});
		}

		res.json("done");
	});
router.route('/add/newItem')
	.post(function(req, res){
		var name = req.body.name;
		groceries[name] = [req.body.lifetime,req.body.lifetime];
		cats[name] = req.body.category;
		description[name] = req.body.description;
		abrv[name] = removeVowels(name);
		addItemToParse(name);
	});

router.route('/delete')
	.post(function(req, res) {
		parse.delete('foodEntry', req.body.id, function (err, response) {
			if (err) {
				res.json({"err": err});
			} else {
				res.json({"success" : response});
			}
		})
	});


router.route('/expired')
	.get(function(req, res) {
		client.messages.create({ 
				to: USER_CELL, 
				from: MSGSRVC_NUM, 
				body: " An item is about to expire \n" + 
					 " reorder here: https://re-fresh1.herokuapp.com/",   
			}, function(err, message) {
				if (err) {
					console.log(err);
				} else {
					console.log(message.sid); 
				}
			});
		res.json("done");
	});

router.route('/postmates')
	.post(function(req, res) {
		console.log(req);
		console.log(req.body.product);
		console.log(req.body.descript);
		console.log("store: " + req.body.store);
		console.log(req.body.name);
		console.log(req.body.homeAddress);
		createDelivery(req.body.product, req.body.descript, req.body.stores,
				req.body.name, req.body.homeAddress, res);
	});

router.route('/postmatesQuote')
	.post(function(req, res) {
		console.log(req);
		//console.log("home: " + req.body.homeAddress);
		//console.log("store: " + req.body.store);
		console.log("pickup_address: " + req.body.pickup_address);
		console.log("dropoff_address: " + req.body.dropoff_address);
		createAndPostQuote(req.body.pickup_address, req.body.dropoff_address, res);
	});

router.route('/recommend/recipe')
	.get(function(req, res) {
		getRecipe(res);
	});

router.route('/recipe/:id')
	.get(function(req, res) {
		console.log("id is: " + req.params.id);
		getRecipeInfo(req.params.id, res);
	});

function match(text){
	var len=text.length;
	var minLength=100;
	var result="";
	var w = getClosestWord(text, groceries);
	var a = getClosestWord(text, abrv);
	var resultingClosestWord;
	
	if (w[1] < a[1]) {
		resultingClosestWord = w;
	} else {
		resultingClosestWord = [abrv[a[0]], a[1]];
	}

	if (resultingClosestWord[1] > Math.min(text.length / 2 , resultingClosestWord[0].length / 2 )) {
		return null;
	} else {

		return resultingClosestWord[0];
	}
}

function determineProducts(list) {
	var dict  = {};
	for (var i = 0; i < list.length; i++) {
		var item = list[i];
		var res = match(item);
		if (res != null) {
			console.log(item + " is also known as: " + res);
			if (res in dict) {
				dict[res]++;
			} else {
				dict[res] = 1;
			}
		}
	}

	return dict;
}

function getClosestWord(w, dict) {
	var minDis = -1;
	var minWord = "";                                                
	for (var grocery in dict) {
		var dis = getEditDistance(w.toLowerCase(), grocery.toLowerCase());
		//console.log(grocery + " the dist is " + dis);
		if (minDis == -1 || minDis > dis) {
			minDis = dis;
			minWord = grocery;
		}
	}

	return [minWord, minDis];
}

function levenshteinDistance (s, t) {
    if (!s.length) return t.length;
    if (!t.length) return s.length;

    return Math.min(
        levenshteinDistance(s.substr(1), t) + 1,
        levenshteinDistance(t.substr(1), s) + 1,
        levenshteinDistance(s.substr(1), t.substr(1)) + (s[0] !== t[0] ? 1 : 0)
    ) + 1;
}

function getEditDistance(a, b){
  if(a.length == 0) return b.length; 
  if(b.length == 0) return a.length; 

  var matrix = [];

  // increment along the first column of each row
  var i;
  for(i = 0; i <= b.length; i++){
    matrix[i] = [i];
  }

  // increment each column in the first row
  var j;
  for(j = 0; j <= a.length; j++){
    matrix[0][j] = j;
  }

  // Fill in the rest of the matrix
  for(i = 1; i <= b.length; i++){
    for(j = 1; j <= a.length; j++){
      if(b.charAt(i-1) == a.charAt(j-1)){
        matrix[i][j] = matrix[i-1][j-1];
      } else {
        matrix[i][j] = Math.min(matrix[i-1][j-1] + 1, // substitution
                                Math.min(matrix[i][j-1] + 1, // insertion
                                         matrix[i-1][j] + 1)); // deletion
      }
    }
  }

  return matrix[b.length][a.length];
}

function removeAllVowels() {
	var arr = [];
	for (var g in groceries) {
		/*var res = "";
		for (var i = 0; i < g.length; i++) {
			//console.log(g[i]);
			var c = g[i];
			if (['a', 'e', 'i', 'o', 'u'].indexOf(c.toLowerCase()) == -1) {
				res += g[i];
			}
		}*/
		arr.push(removeVowels(g));
	}
	console.log(arr);
}

function removeVowels(g) {
	var res = "";
		for (var i = 0; i < g.length; i++) {
			//console.log(g[i]);
			var c = g[i];
			if (['a', 'e', 'i', 'o', 'u'].indexOf(c.toLowerCase()) == -1) {
				res += g[i];
			}
		}

		return res;
}

function addItemToParse(food) {
	var item = {
		"name" : food,
		"expDate" : getNDaysFromNow(groceries[food][0]),
		"lifetime" : groceries[food][0],
		"description" : descriptions[food],
		"category" : cats[food],
		"price" : price[food]
	};

	parse.insert('foodEntry', item, function (err, response) {
	  console.log(response);
	});
}

function getNDaysFromNow(n) {
	var a = new Date();
	a.setDate(a.getDate() + n);
	return a;
}

function getDayDifference(date) {
	date = new Date(date);
	var a = new Date();
	//console.log("the exp date is " + date);
	var timeDiff = date.getTime() - a.getTime();
	//console.log("The time diff is : " + timeDiff);
	var diffDays = Math.ceil(timeDiff / (1000 * 3600 * 24)); 
	return diffDays;

}

function getRecipe(res) {
	parse.find('foodEntry', '', function (err, response) {
		//console.log(response);
		var success = response;
		var arr = success["results"];
		arr.sort(function(x, y){ 
		    if (x.expDate < y.expDate) {
		        return -1;
		    }
		    if (x.expDate > y.expDate) {
		        return 1;
		    }
		    return 0;
		});

		recRecipe(arr, res);
	});
}

function recRecipe(ingreds, res) {
	//console.log(ingreds);
	var url = "";
	var usedIngreds = [];
	if (ingreds.length > 0 && getDayDifference(ingreds[0].expDate) <= 3) {
		url += ingreds[0].name.trim();
		usedIngreds.push(url);
		var count = 1;
		for (var i = 1; count < Math.min(3, ingreds.length) && i < ingreds.length; i++) {
			if (getDayDifference(ingreds[i].expDate) <= 3) {
				url += "," + ingreds[i].name.trim();
				count++;
				usedIngreds.push(ingreds[i].name.trim());
			}
		}
		console.log(encodeURIComponent(url)); 
		unirest.get("https://spoonacular-recipe-food-nutrition-v1.p.mashape.com/recipes/findByIngredients?ingredients=" + url + "&limitLicense=false&number=5&ranking=1")
		.header("X-Mashape-Key", "68sljwduiumshFCNWmjQRwB9a1T1p1sYYvNjsni2hRqvH6NZUe")
		.header("Accept", "application/json")
		.end(function (result) {
			//result.body.push({"usedIngreds" : usedIngreds});
			//console.log(result.body);
		  	res.json({data: result.body, usedIngreds: usedIngreds});
		});
	} else {
		res.json(null);
	}
	/*var host = "https://api.edamam.com/"
	var url = "search?q="
	if (ingreds.length > 0) {
		url += ingreds[0].name.trim();
		for (var i = 1; i < Math.min(3, ingres.length); i++) {
			url += "," + ingreds[i].name.trim();
		}
		url += "&app_id=" + eapp_id;
		url += "&app_key=" + eapp_key; 
		console.log(url);
		http.request( {"host" : host, "path": url}, callBack).end();
	}*/
}

function getRecipeInfo(id, res) {
	var resultJson = {};
	unirest.get("https://spoonacular-recipe-food-nutrition-v1.p.mashape.com/recipes/" + id + "/information")
	.header("X-Mashape-Key", "68sljwduiumshFCNWmjQRwB9a1T1p1sYYvNjsni2hRqvH6NZUe")
	.end(function (result) {
	  console.log(result.body.spoonacularSourceUrl);
	  resultJson.link = result.body.spoonacularSourceUrl;
	  resultJson.time = result.body.readyInMinutes;
	  resultJson.id = result.body.id;
	  resultJson.title = result.body.title;
	});

	  unirest.get("https://spoonacular-recipe-food-nutrition-v1.p.mashape.com/recipes/" + id + "/summary")
		.header("X-Mashape-Key", "68sljwduiumshFCNWmjQRwB9a1T1p1sYYvNjsni2hRqvH6NZUe")
		.end(function (result) {
			resultJson.summary = result.body.summary;
			console.log(resultJson);
			res.json(resultJson);
		});
}

function callBack(response) {
	console.log(response);
}


function postDelivery(quote_id, manifest,
					  manifest_reference, pickup_name, pickup_address, pickup_phone_number,
					  pickup_business_name, pickup_notes, dropoff_name, dropoff_address,
					  dropoff_phone_number, dropoff_business_name, dropoff_notes) {

	var delivery = {"quote_id" : quote_id, "manifest" : manifest,
		"manifest_reference" : manifest_reference, "pickup_name" : pickup_name,
		"pickup_address" : pickup_address, "pickup_phone_number" : pickup_phone_number,
		"pickup_business_name" : pickup_business_name, "pickup_notes" : pickup_notes,
		"dropoff_name" : dropoff_name, "dropoff_address" : dropoff_address,
		"dropoff_phone_number" : dropoff_phone_number,
		"dropoff_business_name" : dropoff_business_name, "dropoff_notes" : dropoff_notes
	};

	postmates.new(delivery, function(err, res) {
		if(!err) {
			console.log(res);
			//ETA PROCESSING HERE
			// SEND BACK TO CLIENT
			// also update parse

			//res2client.send(eta)
		}
		else {
			console.error(err);
		}
	});
}

function createDelivery(product, descript, stores, name, homeAddress) {
	var storeAddress = stores[Math.random() * stores.length + 1].formatted_address;
	//storeAddress = rmLastToken(storeAddress);
	console.log(storeAddress);
	//homeAddress = rmLastToken(homeAddress);
	//console.log(homeAddress);
	var dropoff_name = name ? name : "My Home";
	while (!homeAddress) {}
	postDelivery(null, null, null, "Grocery Store", storeAddress, "1231231234",
			null, descript, dropoff_name, homeAddress, "1231231234", dropoff_name, descript);
}

function createAndPostQuote(pick_up_address, dropoff_address, resp) {
	var delivery = {
		pickup_address: pick_up_address,
		dropoff_address: dropoff_address
	};
	postmates.quote(delivery, function(err, res) {
		if(res.body.dropoff_eta || res.body.created) {
			console.log("eta: " + res.body.dropoff_eta);
			console.log("created: " + res.body.created);

			client.messages.create({
				to: USER_CELL,
				from: MSGSRVC_NUM,
				body: "Your item will be ready at "+ res.body.dropoff_eta + "\nhttps://re-fresh1.herokuapp.com/",
			}, function(err, message) {
				if (err) {
					console.log(err);
				} else {
					console.log(message.sid);
				}
			});
			resp.json({"eta" : res.body.dropoff_eta, "created" : res.body.created});
			resp.send();
		}
		else {
			console.error("no eta or created");
		}
	});
}

function rmLastToken(obj) {
	var str = obj.split(' ').pop();
	return str.join(" ");
}

var job = new CronJob('00 30 11 * * 0-6', function() {
	parse.find('foodEntry', '', function (err, response) {
		var data = response.results;
		for (var i = 0; i < data.length; i++) {
			var item = data[i];
			if (getDayDifference(data.expired) <= 1 && !data.isNotified) {
				client.messages.create({ 
				to: USER_CELL, 
				from: MSGSRVC_NUM, 
				body: "Your item: "+ req.body.name + " has expired \n" + 
					 " reorder here: https://re-fresh1.herokuapp.com/",   
				}, function(err, message) {
					if (err) {
						console.log(err);
					} else {
						console.log(message.sid); 
					}
				});
				data.isNotified = true;
			}
		}
	});
  /*
   * Runs every day
   * at 11:30:00 AM. It does not run on Saturday
   * or Sunday.
   */
  }, function () {
    /* This function is executed when the job stops */
  },
  true, /* Start the job right now */
  'America/Los_Angeles' /* Time zone of this job. */
);

job.start();



// START THE SERVER
// =============================================================================
app.listen(port);
console.log('Server on: ' + port);