var comNpay = {};

// To replace with your identifiers
var serialNumber = null;

// To replace with the url of your website
var origin = "platform.chiringo.co";

// Generic settings
var homologation_url = "https://secure-homologation.comnpay.com:60000";
var production_url = "https://secure.comnpay.com:60000";
var api = "/rest/token/create";
var url = "";

//var cardType = "";

// Mask initialization for payment
comNpay.initMask = function(){
    // Card mask
    $('#card').mask('0000 0000 0000 0000 000');
    // Date mask
    $('#date').mask('00/00');
    // Cvv mask
    $('#cvv').mask('0000');
};

// Initialization of checks for input format checking
comNpay.initCheck = function(){

    // Card check
    $("#card").focusout(function() {
        comNpay.checkCard();
    });

    // Date check
    $("#date").focusout(function() {
        comNpay.checkDate();
    });

    // Cvv check
    $("#cvv").focusout(function() {
        comNpay.checkCvv();
    });
};


// Card check
comNpay.checkCard = function(){
    var card = $("#card");
    if(!isValidCard(card.val())){
        card.addClass('errorForm');
        return false;
    }else{
        card.removeClass('errorForm');
        return true;
    }
};

// Date check
comNpay.checkDate = function(){
    var re = new RegExp("0[1-9]|10|11|12/[0-9][0-9]");
    var date = $("#date");
    if(!re.test(date.val())){
        date.addClass('errorForm');
        return false;
    }else{
        date.removeClass('errorForm');
        return true;
    }
};

// Cvv check
comNpay.checkCvv = function(){
    var cvv = $("#cvv");
    if(cvv.val().length > 4 || cvv.val().length < 3){
        cvv.addClass('errorForm');
        return false;
    }else{
        cvv.removeClass('errorForm');
        return true;
    }
};


// Type check
/*
comNpay.checkType = function(){
    var cvv = $("#cvv");
    if(cardType === ''){
        $(".imgToSelect").each(function () {
            $(this).addClass("errorFormCard");
        });
        return false;
    }else{
        cvv.removeClass('errorForm');
        return true;
    }
};
*/


function getCardType(number) {
    // visa
    var re = new RegExp("^4");
    if (number.match(re) != null)
        return "Visa";

    // Mastercard 
    // Updated for Mastercard 2017 BINs expansion
     if (/^(5[1-5][0-9]{14}|2(22[1-9][0-9]{12}|2[3-9][0-9]{13}|[3-6][0-9]{14}|7[0-1][0-9]{13}|720[0-9]{12}))$/.test(number)) 
        return "Mastercard";

    // AMEX
    re = new RegExp("^3[47]");
    if (number.match(re) != null)
        return "AMEX";

    // Discover
    re = new RegExp("^(6011|622(12[6-9]|1[3-9][0-9]|[2-8][0-9]{2}|9[0-1][0-9]|92[0-5]|64[4-9])|65)");
    if (number.match(re) != null)
        return "Discover";

    // Diners
    re = new RegExp("^36");
    if (number.match(re) != null)
        return "Diners";

    // Diners - Carte Blanche
    re = new RegExp("^30[0-5]");
    if (number.match(re) != null)
        return "Diners - Carte Blanche";

    // JCB
    re = new RegExp("^35(2[89]|[3-8][0-9])");
    if (number.match(re) != null)
        return "JCB";

    // Visa Electron
    re = new RegExp("^(4026|417500|4508|4844|491(3|7))");
    if (number.match(re) != null)
        return "Visa Electron";

    return "CB";
}


// Initializing ComNpay settings
comNpay.init = function(plateform, canUseAmex, VADNumber){
    console.log('Initializing COMNPay for serial number: ' + VADNumber);
    serialNumber = VADNumber;
    if(plateform === "HOMOLOGATION"){
        url = homologation_url + api;
    }else{
        url = production_url + api;
    }

    if (!canUseAmex){
        $("#canUseAmex").remove();
    }




};

// Tokenization
comNpay.tokenize = function(cardNumber, cardExpirationDate, cvv){
    // $.ajax({
    //         type: "POST",
    //         url: url,
    //         data: {
    //             serialNumber: serialNumber,
    //             cardNumber: cardNumber.replace(/\s/g,''),
    //             cardExpirationDate: cardExpirationDate,
    //             cvv: cvv,
    //             cardType: cardType,
    //             origin: origin
    //         },
    //         dataType: "json"
    //     }) 
    //     .done(function (msg) {
    //         console.log('tokenize(): the tokenization result is ' + JSON.stringify(msg, null, 2));
    //         return msg.token;
    //     });

    // If all fields are filled correctly:
    //var typeOk = true;//comNpay.checkType();
    var cardOk = comNpay.checkCard();
    var dateOk = comNpay.checkDate();
    var cvvOk = comNpay.checkCvv();

    if(cardOk && dateOk && cvvOk){

        console.log('tokenize(): about to request with ' + serialNumber + ' - ' + origin);

        var sanitizedCardNumber = cardNumber.replace(/\s/g,'');

        var data = {
                serialNumber: serialNumber,
                cardNumber: sanitizedCardNumber,
                cardExpirationDate: cardExpirationDate,
                cvv: cvv,
                cardType: getCardType(sanitizedCardNumber),
                origin: origin
            };

        return request
                .post(url)
                .type('form')
                .send(data);
    }
    console.log('tokenize(): could not request token, some check failed: cardOk ' + cardOk + ', dateOk: ' + dateOk + ', cvvOk: ' + cvvOk);
    return null;
};


// Verification of the format of the card
function isValidCard(identifier) {
    identifier = identifier.replace(/\s/g,'');
    var sum     = 0,
        alt     = false,
        i       = identifier.length-1,
        num;
    if (identifier.length < 13 || identifier.length > 19){
        return false;
    }
    while (i >= 0){
        num = parseInt(identifier.charAt(i), 10);
        if (isNaN(num)){
            return false;
        }
        if (alt) {
            num *= 2;
            if (num > 9){
                num = (num % 10) + 1;
            }
        }
        alt = !alt;
        sum += num;
        i--;
    }
    return (sum % 10 == 0);
}


/*
$(document).ready(function() {
    // Select good card
    $(".imgToSelect").click(function () {
        $(".imgToSelect").each(function () {
            $(this).removeClass("selectedCard");
            $(this).removeClass("errorFormCard");
        });
        $(this).addClass("selectedCard");
        cardType = $(this).data("id");
    });
});
*/