var speechOutput;
var reprompt;

var myURL = 'https://sub.meinServer.de/';
var myWLAN = 'WLAN NAME';
var myPass = "<break time='500ms'/>großes P<break time='1s'/>kleines a<break time='1s'/>kleines s<break time='1s'/>kleines s<break time='1s'/>kleines w<break time='1s'/>kleines o<break time='1s'/>kleines r<break time='1s'/>kleines t<break time='1s'/>";

var welcomeOutput = "Hallo! Womit kann behilflich sein? Für einen Überblick, was ich erledigen kann, sage Menü oder Liste.";
var welcomeReprompt = "Wie kann ich helfen? Sage z.B. Menü";

 // 2. Skill Code =======================================================================================================
"use strict";
var Alexa = require('alexa-sdk');
var APP_ID = '';  // TODO replace with your app ID (OPTIONAL).
var speechOutput = '';
var handlers = {
    'LaunchRequest': function () {
          this.emit(':ask', welcomeOutput, welcomeReprompt);
    },
	'AMAZON.HelpIntent': function () {
        speechOutput = 'Dieser Skill kann dir z.B. das Passwort zum Gäste WLAN vorlesen. Sage dazu, Alexa frage Gäste WLAN, wie lautet das Passwort?';
        reprompt = 'probiere es mit nenne mir das Passwort';
        this.emit(':ask', speechOutput, reprompt);
    },
    'AMAZON.CancelIntent': function () {
        speechOutput = 'ok';
        this.emit(':tell', speechOutput);
    },
    'AMAZON.StopIntent': function () {
        speechOutput = 'ok';
        this.emit(':tell', speechOutput);
    },
    'SessionEndedRequest': function () {
        speechOutput = '';
        //this.emit(':saveState', true);
        this.emit(':tell', speechOutput);
    },
     'AMAZON.YesIntent': function () {
        speechOutput = "OK ich wiederhole. " + myPass + " Soll ich es noch einmal wiederholen?";
        this.emit(':ask', speechOutput, speechOutput);
    },
     'AMAZON.NoIntent': function () {
        speechOutput = 'OK dann wünsche ich deinen Gästen viel Spaß beim surfen im Internet';
        this.emit(':tell', speechOutput);
    },
	"MenuIntent": function () {
	speechOutput = "Sage z.B. Gäste WLAN ein oder ausschalten. Du kannst mich auch fragen, wie ist das Passwort. Womit kann ich dir nun dienen?";
        this.emit(":ask", speechOutput, speechOutput);
    },
	"WLANIntent": function () {
	speechOutput = "Das Passwort lautet" + myPass +" Soll ich es noch einmal wiederholen?";
        this.emit(":ask", speechOutput, speechOutput);
    },
	"WLANOnIntent": function () {
		speechOutput = "Ok, ich habe das Gäste WLAN aktiviert. Der Name lautet " + myWLAN + ". Frage mich nun z.B. nach dem Passwort";
        
        var url = 'wlan_ein.php';
        getValue(url,(result)=>{
            this.emit(":ask", speechOutput, speechOutput);
        });
    
    },
    "WLANOffIntent": function () {	
	speechOutput = "Ok, ich habe nun das Gäste WLAN deaktiviert";
        var url = 'wlan_aus.php';
        getValue(url,(result)=>{
    
            this.emit(":tell", speechOutput);
        });
    },
	'Unhandled': function () {
        speechOutput = "Ich habe dich leider nicht verstanden. Kannst du das Bitte noch einmal wiederholen?";
        this.emit(':ask', speechOutput, speechOutput);
    }
};

function getValue(loc,cb) {
    var https = require('https');
    let endpoint = myURL + loc;
    let something = "";
    let body = "";
    https.get(endpoint, (response) => {
        response.on('data', (chunk) => {
            body += chunk;
        });
        response.on('end', () => {
            //data = JSON.parse(body);
            cb(null);
        });
    });
}

exports.handler = (event, context) => {
    var alexa = Alexa.handler(event, context);
    alexa.APP_ID = APP_ID;
    alexa.registerHandlers(handlers);
    alexa.execute();
};


function resolveCanonical(slot){
	//this function looks at the entity resolution part of request and returns the slot value if a synonyms is provided
   var canonical = '';
    try{
		canonical = slot.resolutions.resolutionsPerAuthority[0].values[0].value.name;
	}catch(err){
	    console.log(err.message);
	    canonical = slot.value;
	}
	return canonical;
}

function delegateSlotCollection(){
  console.log("in delegateSlotCollection");
  console.log("current dialogState: "+this.event.request.dialogState);
    if (this.event.request.dialogState === "STARTED") {
      console.log("in Beginning");
	  var updatedIntent= null;
	  // updatedIntent=this.event.request.intent;
      //optionally pre-fill slots: update the intent object with slot values for which
      //you have defaults, then return Dialog.Delegate with this updated intent
      // in the updatedIntent property
      //this.emit(":delegate", updatedIntent); //uncomment this is using ASK SDK 1.0.9 or newer
	  
	  //this code is necessary if using ASK SDK versions prior to 1.0.9 
	  if(this.isOverridden()) {
			return;
		}
		this.handler.response = buildSpeechletResponse({
			sessionAttributes: this.attributes,
			directives: getDialogDirectives('Dialog.Delegate', updatedIntent, null),
			shouldEndSession: false
		});
		this.emit(':responseReady', updatedIntent);
		
    } else if (this.event.request.dialogState !== "COMPLETED") {
      console.log("in not completed");
      // return a Dialog.Delegate directive with no updatedIntent property.
      //this.emit(":delegate"); //uncomment this is using ASK SDK 1.0.9 or newer
	  
	  //this code necessary is using ASK SDK versions prior to 1.0.9
		if(this.isOverridden()) {
			return;
		}
		this.handler.response = buildSpeechletResponse({
			sessionAttributes: this.attributes,
			directives: getDialogDirectives('Dialog.Delegate', updatedIntent, null),
			shouldEndSession: false
		});
		this.emit(':responseReady');
		
    } else {
      console.log("in completed");
      console.log("returning: "+ JSON.stringify(this.event.request.intent));
      // Dialog is now complete and all required slots should be filled,
      // so call your normal intent handler.
      return this.event.request.intent;
    }
}


function randomPhrase(array) {
    // the argument is an array [] of words or phrases
    var i = 0;
    i = Math.floor(Math.random() * array.length);
    return(array[i]);
}
function isSlotValid(request, slotName){
        var slot = request.intent.slots[slotName];
        //console.log("request = "+JSON.stringify(request)); //uncomment if you want to see the request
        var slotValue;

        //if we have a slot, get the text and store it into speechOutput
        if (slot && slot.value) {
            //we have a value in the slot
            slotValue = slot.value.toLowerCase();
            return slotValue;
        } else {
            //we didn't get a value in the slot.
            return false;
        }
}

//These functions are here to allow dialog directives to work with SDK versions prior to 1.0.9
//will be removed once Lambda templates are updated with the latest SDK

function createSpeechObject(optionsParam) {
    if (optionsParam && optionsParam.type === 'SSML') {
        return {
            type: optionsParam.type,
            ssml: optionsParam['speech']
        };
    } else {
        return {
            type: optionsParam.type || 'PlainText',
            text: optionsParam['speech'] || optionsParam
        };
    }
}

function buildSpeechletResponse(options) {
    var alexaResponse = {
        shouldEndSession: options.shouldEndSession
    };

    if (options.output) {
        alexaResponse.outputSpeech = createSpeechObject(options.output);
    }

    if (options.reprompt) {
        alexaResponse.reprompt = {
            outputSpeech: createSpeechObject(options.reprompt)
        };
    }

    if (options.directives) {
        alexaResponse.directives = options.directives;
    }

    if (options.cardTitle && options.cardContent) {
        alexaResponse.card = {
            type: 'Simple',
            title: options.cardTitle,
            content: options.cardContent
        };

        if(options.cardImage && (options.cardImage.smallImageUrl || options.cardImage.largeImageUrl)) {
            alexaResponse.card.type = 'Standard';
            alexaResponse.card['image'] = {};

            delete alexaResponse.card.content;
            alexaResponse.card.text = options.cardContent;

            if(options.cardImage.smallImageUrl) {
                alexaResponse.card.image['smallImageUrl'] = options.cardImage.smallImageUrl;
            }

            if(options.cardImage.largeImageUrl) {
                alexaResponse.card.image['largeImageUrl'] = options.cardImage.largeImageUrl;
            }
        }
    } else if (options.cardType === 'LinkAccount') {
        alexaResponse.card = {
            type: 'LinkAccount'
        };
    } else if (options.cardType === 'AskForPermissionsConsent') {
        alexaResponse.card = {
            type: 'AskForPermissionsConsent',
            permissions: options.permissions
        };
    }

    var returnResult = {
        version: '1.0',
        response: alexaResponse
    };

    if (options.sessionAttributes) {
        returnResult.sessionAttributes = options.sessionAttributes;
    }
    return returnResult;
}

function getDialogDirectives(dialogType, updatedIntent, slotName) {
    let directive = {
        type: dialogType
    };

    if (dialogType === 'Dialog.ElicitSlot') {
        directive.slotToElicit = slotName;
    } else if (dialogType === 'Dialog.ConfirmSlot') {
        directive.slotToConfirm = slotName;
    }

    if (updatedIntent) {
        directive.updatedIntent = updatedIntent;
    }
    return [directive];
}