IP Location Alexa Skill

'use strict';
var http = require('http');

function buildSpeechletResponseWithCard(title, output, cardOutput, reprompt, shouldEndSession) {
    return {
        outputSpeech:{
            type: 'PlainText',
            text: output,
        },
        card: {
            type: 'Simple',
            title: title,
            content: cardOutput,
        },
        reprompt: {
            outputSpeech: {
                type: 'PlainText',
                text: reprompt,
            },       
        },
        shouldEndSession,
    };
}

function buildSpeechletResponse(output, reprompt, shouldEndSession) {
    return {
        outputSpeech:{
            type: 'PlainText',
            text: output,
        },
        reprompt: {
            outputSpeech: {
                type: 'PlainText',
                text: reprompt,
            },       
        },
        shouldEndSession,
    };    
}

function buildResponse(attributes, response) {
    return {
      version: '1.0',
      attributes,
      response: response,
    };
}

//Json doc for country codes to name from country.io!! Thanks guys!!
function getCountryFromCode(code) {
    var countries = JSON.parse("{\"BD\": \"Bangladesh\", \"BE\": \"Belgium\", \"BF\": \"Burkina Faso\", \"BG\": \"Bulgaria\", \"BA\": \"Bosnia and Herzegovina\", \"BB\": \"Barbados\", \"WF\": \"Wallis and Futuna\", \"BL\": \"Saint Barthelemy\", \"BM\": \"Bermuda\", \"BN\": \"Brunei\", \"BO\": \"Bolivia\", \"BH\": \"Bahrain\", \"BI\": \"Burundi\", \"BJ\": \"Benin\", \"BT\": \"Bhutan\", \"JM\": \"Jamaica\", \"BV\": \"Bouvet Island\", \"BW\": \"Botswana\", \"WS\": \"Samoa\", \"BQ\": \"Bonaire, Saint Eustatius and Saba \", \"BR\": \"Brazil\", \"BS\": \"Bahamas\", \"JE\": \"Jersey\", \"BY\": \"Belarus\", \"BZ\": \"Belize\", \"RU\": \"Russia\", \"RW\": \"Rwanda\", \"RS\": \"Serbia\", \"TL\": \"East Timor\", \"RE\": \"Reunion\", \"TM\": \"Turkmenistan\", \"TJ\": \"Tajikistan\", \"RO\": \"Romania\", \"TK\": \"Tokelau\", \"GW\": \"Guinea-Bissau\", \"GU\": \"Guam\", \"GT\": \"Guatemala\", \"GS\": \"South Georgia and the South Sandwich Islands\", \"GR\": \"Greece\", \"GQ\": \"Equatorial Guinea\", \"GP\": \"Guadeloupe\", \"JP\": \"Japan\", \"GY\": \"Guyana\", \"GG\": \"Guernsey\", \"GF\": \"French Guiana\", \"GE\": \"Georgia\", \"GD\": \"Grenada\", \"GB\": \"United Kingdom\", \"GA\": \"Gabon\", \"SV\": \"El Salvador\", \"GN\": \"Guinea\", \"GM\": \"Gambia\", \"GL\": \"Greenland\", \"GI\": \"Gibraltar\", \"GH\": \"Ghana\", \"OM\": \"Oman\", \"TN\": \"Tunisia\", \"JO\": \"Jordan\", \"HR\": \"Croatia\", \"HT\": \"Haiti\", \"HU\": \"Hungary\", \"HK\": \"Hong Kong\", \"HN\": \"Honduras\", \"HM\": \"Heard Island and McDonald Islands\", \"VE\": \"Venezuela\", \"PR\": \"Puerto Rico\", \"PS\": \"Palestinian Territory\", \"PW\": \"Palau\", \"PT\": \"Portugal\", \"SJ\": \"Svalbard and Jan Mayen\", \"PY\": \"Paraguay\", \"IQ\": \"Iraq\", \"PA\": \"Panama\", \"PF\": \"French Polynesia\", \"PG\": \"Papua New Guinea\", \"PE\": \"Peru\", \"PK\": \"Pakistan\", \"PH\": \"Philippines\", \"PN\": \"Pitcairn\", \"PL\": \"Poland\", \"PM\": \"Saint Pierre and Miquelon\", \"ZM\": \"Zambia\", \"EH\": \"Western Sahara\", \"EE\": \"Estonia\", \"EG\": \"Egypt\", \"ZA\": \"South Africa\", \"EC\": \"Ecuador\", \"IT\": \"Italy\", \"VN\": \"Vietnam\", \"SB\": \"Solomon Islands\", \"ET\": \"Ethiopia\", \"SO\": \"Somalia\", \"ZW\": \"Zimbabwe\", \"SA\": \"Saudi Arabia\", \"ES\": \"Spain\", \"ER\": \"Eritrea\", \"ME\": \"Montenegro\", \"MD\": \"Moldova\", \"MG\": \"Madagascar\", \"MF\": \"Saint Martin\", \"MA\": \"Morocco\", \"MC\": \"Monaco\", \"UZ\": \"Uzbekistan\", \"MM\": \"Myanmar\", \"ML\": \"Mali\", \"MO\": \"Macao\", \"MN\": \"Mongolia\", \"MH\": \"Marshall Islands\", \"MK\": \"Macedonia\", \"MU\": \"Mauritius\", \"MT\": \"Malta\", \"MW\": \"Malawi\", \"MV\": \"Maldives\", \"MQ\": \"Martinique\", \"MP\": \"Northern Mariana Islands\", \"MS\": \"Montserrat\", \"MR\": \"Mauritania\", \"IM\": \"Isle of Man\", \"UG\": \"Uganda\", \"TZ\": \"Tanzania\", \"MY\": \"Malaysia\", \"MX\": \"Mexico\", \"IL\": \"Israel\", \"FR\": \"France\", \"IO\": \"British Indian Ocean Territory\", \"SH\": \"Saint Helena\", \"FI\": \"Finland\", \"FJ\": \"Fiji\", \"FK\": \"Falkland Islands\", \"FM\": \"Micronesia\", \"FO\": \"Faroe Islands\", \"NI\": \"Nicaragua\", \"NL\": \"Netherlands\", \"NO\": \"Norway\", \"NA\": \"Namibia\", \"VU\": \"Vanuatu\", \"NC\": \"New Caledonia\", \"NE\": \"Niger\", \"NF\": \"Norfolk Island\", \"NG\": \"Nigeria\", \"NZ\": \"New Zealand\", \"NP\": \"Nepal\", \"NR\": \"Nauru\", \"NU\": \"Niue\", \"CK\": \"Cook Islands\", \"XK\": \"Kosovo\", \"CI\": \"Ivory Coast\", \"CH\": \"Switzerland\", \"CO\": \"Colombia\", \"CN\": \"China\", \"CM\": \"Cameroon\", \"CL\": \"Chile\", \"CC\": \"Cocos Islands\", \"CA\": \"Canada\", \"CG\": \"Republic of the Congo\", \"CF\": \"Central African Republic\", \"CD\": \"Democratic Republic of the Congo\", \"CZ\": \"Czech Republic\", \"CY\": \"Cyprus\", \"CX\": \"Christmas Island\", \"CR\": \"Costa Rica\", \"CW\": \"Curacao\", \"CV\": \"Cape Verde\", \"CU\": \"Cuba\", \"SZ\": \"Swaziland\", \"SY\": \"Syria\", \"SX\": \"Sint Maarten\", \"KG\": \"Kyrgyzstan\", \"KE\": \"Kenya\", \"SS\": \"South Sudan\", \"SR\": \"Suriname\", \"KI\": \"Kiribati\", \"KH\": \"Cambodia\", \"KN\": \"Saint Kitts and Nevis\", \"KM\": \"Comoros\", \"ST\": \"Sao Tome and Principe\", \"SK\": \"Slovakia\", \"KR\": \"South Korea\", \"SI\": \"Slovenia\", \"KP\": \"North Korea\", \"KW\": \"Kuwait\", \"SN\": \"Senegal\", \"SM\": \"San Marino\", \"SL\": \"Sierra Leone\", \"SC\": \"Seychelles\", \"KZ\": \"Kazakhstan\", \"KY\": \"Cayman Islands\", \"SG\": \"Singapore\", \"SE\": \"Sweden\", \"SD\": \"Sudan\", \"DO\": \"Dominican Republic\", \"DM\": \"Dominica\", \"DJ\": \"Djibouti\", \"DK\": \"Denmark\", \"VG\": \"British Virgin Islands\", \"DE\": \"Germany\", \"YE\": \"Yemen\", \"DZ\": \"Algeria\", \"US\": \"United States\", \"UY\": \"Uruguay\", \"YT\": \"Mayotte\", \"UM\": \"United States Minor Outlying Islands\", \"LB\": \"Lebanon\", \"LC\": \"Saint Lucia\", \"LA\": \"Laos\", \"TV\": \"Tuvalu\", \"TW\": \"Taiwan\", \"TT\": \"Trinidad and Tobago\", \"TR\": \"Turkey\", \"LK\": \"Sri Lanka\", \"LI\": \"Liechtenstein\", \"LV\": \"Latvia\", \"TO\": \"Tonga\", \"LT\": \"Lithuania\", \"LU\": \"Luxembourg\", \"LR\": \"Liberia\", \"LS\": \"Lesotho\", \"TH\": \"Thailand\", \"TF\": \"French Southern Territories\", \"TG\": \"Togo\", \"TD\": \"Chad\", \"TC\": \"Turks and Caicos Islands\", \"LY\": \"Libya\", \"VA\": \"Vatican\", \"VC\": \"Saint Vincent and the Grenadines\", \"AE\": \"United Arab Emirates\", \"AD\": \"Andorra\", \"AG\": \"Antigua and Barbuda\", \"AF\": \"Afghanistan\", \"AI\": \"Anguilla\", \"VI\": \"U.S. Virgin Islands\", \"IS\": \"Iceland\", \"IR\": \"Iran\", \"AM\": \"Armenia\", \"AL\": \"Albania\", \"AO\": \"Angola\", \"AQ\": \"Antarctica\", \"AS\": \"American Samoa\", \"AR\": \"Argentina\", \"AU\": \"Australia\", \"AT\": \"Austria\", \"AW\": \"Aruba\", \"IN\": \"India\", \"AX\": \"Aland Islands\", \"AZ\": \"Azerbaijan\", \"IE\": \"Ireland\", \"ID\": \"Indonesia\", \"UA\": \"Ukraine\", \"QA\": \"Qatar\", \"MZ\": \"Mozambique\"}");
    return countries[code];
}

function getCountry(intent, session, callback) {
    var attributes = {};
    var address = intent.slots.Address.value.replace(" point ", ".");   
    var address = address.replace(/ /g, "");
    var address = address.replace(/[^\d.]/g, "");
    var output = address;
    var repromptText = "I'm sorry, I didn't catch that.";
    var shouldEnd = false;
    http.get('http://ipinfo.io/' + address, function(res) {
        output = 'http://ipinfo.io/' + address + " - " + res.statusCode;
        if (res.statusCode === 200)
        {
            res.on('data', (chunk) => {
                var js = JSON.parse(chunk);
                var loc = js.city + " " + js.region + " " + getCountryFromCode(js.country);
                output = "That IP address is located in: " + loc.trim();
                repromptText = "Is there anything else I can do?";
                callback(attributes, buildSpeechletResponse(output, repromptText, shouldEnd));
            });
        }
        else
        {   
            output = "Sorry but there is a problem with the entered address. " + address;
            repromptText = "Is there anything else I can do?";
            callback(attributes, buildSpeechletResponse(output, repromptText, shouldEnd));
        }
    }).on('error', function(e) {
        output = "Sorry but there is a problem with the entered address. " + address;
        repromptText = "Is there anything else I can do?";
        callback(attributes, buildSpeechletResponse(output, repromptText, shouldEnd));
    });
}

function getHelpMessage(callback) {
    const attributes = {};
    const title = "Where is that IP Help?";
    const speechOutput = "Use Where is that IP to easily locate a city, region and country an IP address is located. To locate a country based on IP say, Locate 192 point 168 point 0 point 1. Remember to state point between the numbers to ensure the address is formatted correctly.";
    const repromptText = "Sorry I didnt get that, can you repeat the request?";
    const shouldEnd = false;
    callback(attributes, buildSpeechletResponseWithCard(title, speechOutput, speechOutput, repromptText, shouldEnd));
}

function getWelcomeMessage(callback) {
    const attributes = {};
    const speechOutput = "Hi and welcome to Where is that IP, your helpful IP locator tool. What can I do for you?";
    const repromptText = "What was that again?";
    const shouldEnd = false;
    callback(attributes, buildSpeechletResponse(speechOutput, repromptText, shouldEnd));
}

function getEndMessage(callback) {
    const attributes = {}; 
    const speechOutput = "Thank you for using Where is that IP.";
    const shouldEnd = true;
    callback(attributes, buildSpeechletResponse(speechOutput, null, shouldEnd));
}

function onLaunch(launchRequest, session, callback) {
    getWelcomeMessage(callback);
}
    
function onSessionEnded(request, session, callback) {
    getEndMessage(callback);
}

function onIntent(intentRequest, session, callback) {
    const intent = intentRequest.intent;
    const intentName = intentRequest.intent.name;
    
    if (intentName === "GetCountry") {
        return getCountry(intent, session, callback);
    } else if (intentName === "AMAZON.HelpIntent") {
        return getHelpMessage(callback);
    } else if (intentName === "AMAZON.CancelIntent") {
        return getEndMessage(callback);
    } else if (intentName === "AMAZON.StopIntent") {
        return getEndMessage(callback);
    } else {
        throw new Error('Invalid intent');
    }
}

exports.handler = (event, context, callback) => {
    try
    {
        if (event.session.application.applicationId != 'Add Your Own App ID here') {
             callback('Invalid Application ID');
        }
        if (event.request.type === 'LaunchRequest') {
            onLaunch(event.request,
                event.session,
                (sessionAttributes, speechletResponse) => {
                    callback(null, buildResponse(sessionAttributes, speechletResponse));
                });
        } else if (event.request.type === 'IntentRequest') {
            onIntent(event.request,
                event.session,
                (sessionAttributes, speechletResponse) => {
                    callback(null, buildResponse(sessionAttributes, speechletResponse));
                });
        } else if (event.request.type === 'SessionEndedRequest') {
            onSessionEnded(event.request, event.session);
            callback();
        }
    } catch (err) {
        callback(err);
    }
};