index.js

//------->>SEXUAL ASSAULT HELPLINE: +1336-593-6477<<--------

//CODE CHECKING:
//	-date(Is it in the body of all functions? All called date?), callerId
//	-data base for the global variables


var Bandwidth = require("node-bandwidth");
var express = require("express");
var app = express();
var bodyParser = require("body-parser");
var http = require("http").Server(app);

var client = new Bandwidth({
	userId    : process.env.BANDWIDTH_USER_ID,  //<-- note, this is not the same as the username you used to login to the portal
	apiToken  : process.env.BANDWIDTH_API_TOKEN,
	apiSecret : process.env.BANDWIDTH_API_SECRET
});

app.use(bodyParser.json());
app.set('port', (process.env.PORT || 3000));

app.get("/", function(req, res){				//at certain address, takes in request and response
	console.log(req);							//listening FOR a GET request at the '/' (root domain)
	res.send("SEXUAL ASSAULT HELPLINE");
});

http.listen(app.get('port'), function(){
	console.log('listening on *:' + app.get('port'));
});

var callerId;
var i = 0;
var db = {};

app.post("/call-callback", function (req, result){

	var body = req.body;
	result.sendStatus(200); 						//letting the invoker sending the push request say 'we're good' 

	var numbers = {
	to   : callerId,
	from : "+13365936477"
	};

	//1 sentences
	var sentence = [
		'This is a hotline number for sexual assault cases.  Our aim is to help collect evidence. A transciription of the call will be sent to you when you hang up. Please answer the questions as descriptively as you can. Please state your full name, and a number to reach you by. When finished, please press 1.',
		
		'Where did the assault occur? When finished, please press 1',
		
		'What happened? This is the final question. When finished, please press 1.'
	]


	if(body.eventType === "incomingcall"){
		callerId = body.from;
		db[body.callId] = {};
		db[body.callId].from = body.from;
		db[body.callId].recordings = [];
		console.log(db);
	}
	else if (body.eventType === "answer"){
		client.Call.speakSentence(body.callId, sentence[i])
		.then(function (res) {
			console.log(body);
			console.log(res);
 			console.log("------Introduction sentence spoken----");
 			i++;
		})
		.catch(function (err){
			console.log(err);
			console.log("Couldn't speak intro sentence")
		});
	}
	else if (body.eventType === "speak" && body.state === "PLAYBACK_STOP"){
		
		return client.Call.enableRecording(body.callId)
		.then(function (res) {
			console.log("---------Recording---------");
		})
		.catch(function(err){
			console.log(err);
			console.log("Wasn't able to start recording");
		});
	}
	else if (body.eventType === "dtmf" && body.dtmfDigit === "1" && i<sentence.length){
		return client.Call.disableRecording(body.callId)			//returns res
		.then(function (res) {										//res then get inputted into this anonymous function
			console.log(body);
			console.log(res);
			console.log("-----Recording disabled and ended----")
			return res;												//need to return res so it can be used in the .next function
		})
		.catch(function(err){
			console.log("Recording not turned off, still running")
		});
	}	
	else if (body.eventType === "recording" && body.state === "complete"){
			var dbRecording = {
				id: body.recordingId,
				transcriptionId: undefined
			}
			db[body.callId].recordings.push(dbRecording);
			console.log(db);
			console.log(body);
			console.log("----Recording pushed onto recording array---");
			
			if(i !== sentence.length){
			client.Call.speakSentence(body.callId, sentence[i])
			.then(function (res) {
				console.log(body);
				console.log(res);
	 			console.log("------Introduction sentence spoken----");
	 			i++;
			})
			.catch(function (err){
				console.log(err);
				console.log("Couldn't speak sentence")
			});
			}
	}
	else if (body.eventType === "dtmf" && body.dtmfDigit === "1"){
		client.Call.hangup(body.callId)
		.then(function () {
			console.log("----Call has been hungup---")
		})
		.then(function(res){
			return client.Call.getRecordings(body.callId)
			.then(function (recordings) {
				console.log("-----Printing the list of Recordings----")
				console.log(recordings);
				console.log("-----Done Printing the list of Recordings----")
				var transcriptionIdPromises = [];
				if(recordings.length > 1){
					for(var i=1; i<recordings.length; i++){
						for(var j=0; j<i; j++){
							var hold = recordings[j];
							if(recordings[i].endTime<recordings[j].endTime){
								recording[i] = recording[j];
								for(var k = i; k<j+1; k--){
									recordings[k] = recordings[k-1];
								}
								recordings[j+1]=hold;
							}
							break;
						}
					}
				}
				for (var i=0; i < recordings.length; i++){
					var recordingId = recordings[i].id;
					var myTranscriptionPromise = client.Recording.createTranscription(recordingId);
					transcriptionIdPromises.push(myTranscriptionPromise)
				}
				return Promise.all(transcriptionIdPromises);
			})
			.then(function(listOfTranscriptionIds) {
				console.log("-----Printing the list of transcription ids----")
				for (var i = 0; i< listOfTranscriptionIds.length; i++) {
					console.log(listOfTranscriptionIds[i]);
				}
				console.log("-----Done Printing the list of transcription ids----")
			})
			.then(function(){
				console.log("----Printing list of transcriptions-----");
				for (var i = 0; i < recordings.length; i++){
					var recordingId = recordings[id].id;
					client.Recording.getTranscriptions(recordingId)
					.then(function(transcriptions){
					});
				}
			})
	
		})
		.catch(function(err){
			console.log("Call could not be hung up")
		});
	}
	// else if (body.eventType === "recording" && body.state === "complete"){
	// 	client.Recording.createTranscription(body.recordingId)
	// 	.then(function(transcription){
	// 		console.log("-----Transcribing-----");
	// 	})
	// 	.catch(function(err){
	// 		console.log(err);
	// 		console.log("Sorry, something went wrong with the transcription");
	// 	});
	// }
	else if(body.eventType === "hangup"){
		numbers.text = numbers.text + "\n Date: " + body.time;			//+ "\n Date: " + date
		sendMessage(numbers); 											// to get the date and time for the text message
	}
	else if(body.direction === "out" && body.state === "sending"){
		numbers.text = "Would you like to send this transcript to the police? \n yes/no";
		sendMessage(numbers);
	}
	
	else{
		console.log(body);
		console.log("------JUST PRINTED BODY--------");
	}
});

var messagePrinter = function (message){
	console.log('Using the message printer');
	console.log(message);
}

var sendMessage = function(params){
	return client.Message.send({
		from : params.from,
		to   : params.to,
		text : params.text
	})
	.then(function(message){
		messagePrinter(message);				//print message sent
		return client.Message.get(message.id); 	//get message id
	})
	.then(messagePrinter)						//else, print error message
	.catch(function(err){
		console.log(err);
	});
}