// Generated by CoffeeScript 1.4.0
(function() {
  var $, cardFromNumber, cardFromType, cards, defaultFormat, formatBackCardNumber, formatBackExpiry, formatCardNumber, formatExpiry, formatForwardExpiry, formatForwardSlash, hasTextSelected, luhnCheck, reFormatCardNumber, restrictCVC, restrictCardNumber, restrictExpiry, restrictNumeric, setCardType,
    __slice = [].slice,
    __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; },
    _this = this;

  $ = jQuery;

  $.payment = {};

  $.payment.fn = {};

  $.fn.payment = function() {
    var args, method;
    method = arguments[0], args = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
    return $.payment.fn[method].apply(this, args);
  };

  defaultFormat = /(\d{1,4})/g;

  cards = [
    // {
    //   type: 'maestro',
    //   pattern: /^(5018|5020|5038|6304|6759|676[1-3])/,
    //   format: defaultFormat,
    //   length: [12, 13, 14, 15, 16, 17, 18, 19],
    //   cvcLength: [3],
    //   luhn: true
    // }, {
    //   type: 'dinersclub',
    //   pattern: /^(36|38|30[0-5])/,
    //   format: defaultFormat,
    //   length: [14],
    //   cvcLength: [3],
    //   luhn: true
    // }, {
    //   type: 'laser',
    //   pattern: /^(6706|6771|6709)/,
    //   format: defaultFormat,
    //   length: [16, 17, 18, 19],
    //   cvcLength: [3],
    //   luhn: true
    // }, {
    //   type: 'jcb',
    //   pattern: /^35/,
    //   format: defaultFormat,
    //   length: [16],
    //   cvcLength: [3],
    //   luhn: true
    // }, {
    //   type: 'unionpay',
    //   pattern: /^62/,
    //   format: defaultFormat,
    //   length: [16, 17, 18, 19],
    //   cvcLength: [3],
    //   luhn: false
    // }, 
    {
      type: 'discover',
      pattern: /^(6011|65|64[4-9]|622)/,
      format: defaultFormat,
      length: [16],
      cvcLength: [3],
      luhn: true
    }, {
      type: 'mastercard',
      pattern: /^5/,
      format: defaultFormat,
      length: [16],
      cvcLength: [3],
      luhn: true
    }, {
      type: 'amex',
      pattern: /^3[47]/,
      format: /(\d{1,4})(\d{1,6})?(\d{1,5})?/,
      length: [15],
      cvcLength: [3, 4],
      luhn: true
    }, {
      type: 'visa',
      pattern: /^4/,
      format: defaultFormat,
      length: [13, 14, 15, 16],
      cvcLength: [3],
      luhn: true
    }
  ];

  cardFromNumber = function(num) {
    var card, _i, _len;
    num = (num + '').replace(/\D/g, '');
    for (_i = 0, _len = cards.length; _i < _len; _i++) {
      card = cards[_i];
      if (card.pattern.test(num)) {
        return card;
      }
    }
  };

  cardFromType = function(type) {
    var card, _i, _len;
    for (_i = 0, _len = cards.length; _i < _len; _i++) {
      card = cards[_i];
      if (card.type === type) {
        return card;
      }
    }
  };

  luhnCheck = function(num) {
    var digit, digits, odd, sum, _i, _len;
    odd = true;
    sum = 0;
    digits = (num + '').split('').reverse();
    for (_i = 0, _len = digits.length; _i < _len; _i++) {
      digit = digits[_i];
      digit = parseInt(digit, 10);
      if ((odd = !odd)) {
        digit *= 2;
      }
      if (digit > 9) {
        digit -= 9;
      }
      sum += digit;
    }
    return sum % 10 === 0;
  };

  hasTextSelected = function($target) {
    var _ref;
    if (($target.prop('selectionStart') != null) && $target.prop('selectionStart') !== $target.prop('selectionEnd')) {
      return true;
    }
    if (typeof document !== "undefined" && document !== null ? (_ref = document.selection) != null ? typeof _ref.createRange === "function" ? _ref.createRange().text : void 0 : void 0 : void 0) {
      return true;
    }
    return false;
  };

  reFormatCardNumber = function(e) {
    var _this = this;
    return setTimeout(function() {
      var $target, value;
      $target = $(e.currentTarget);
      value = $target.val();
      value = $.payment.formatCardNumber(value);
      return $target.val(value);
    });
  };

  formatCardNumber = function(e) {
    var $target, card, digit, length, re, upperLength, value;
    digit = String.fromCharCode(e.which);
    if (!/^\d+$/.test(digit)) {
      return;
    }
    $target = $(e.currentTarget);
    value = $target.val();
    card = cardFromNumber(value + digit);
    length = (value.replace(/\D/g, '') + digit).length;
    upperLength = 16;
    if (card) {
      upperLength = card.length[card.length.length - 1];
    }
    if (length >= upperLength) {
      return;
    }
    if (($target.prop('selectionStart') != null) && $target.prop('selectionStart') !== value.length) {
      return;
    }
    if (card && card.type === 'amex') {
      re = /^(\d{4}|\d{4}\s\d{6})$/;
    } else {
      re = /(?:^|\s)(\d{4})$/;
    }
    if (re.test(value)) {
      e.preventDefault();
      return $target.val(value + ' ' + digit);
    } else if (re.test(value + digit)) {
      e.preventDefault();
      return $target.val(value + digit + ' ');
    }
  };

  formatBackCardNumber = function(e) {
    var $target, value;
    $target = $(e.currentTarget);
    value = $target.val();
    if (e.meta) {
      return;
    }
    if (e.which !== 8) {
      return;
    }
    if (($target.prop('selectionStart') != null) && $target.prop('selectionStart') !== value.length) {
      return;
    }
    if (/\d\s$/.test(value)) {
      e.preventDefault();
      return $target.val(value.replace(/\d\s$/, ''));
    } else if (/\s\d?$/.test(value)) {
      e.preventDefault();
      return $target.val(value.replace(/\s\d?$/, ''));
    }
  };

  formatExpiry = function(e) {
    var $target, digit, val;
    digit = String.fromCharCode(e.which);
    if (!/^\d+$/.test(digit)) {
      return;
    }
    $target = $(e.currentTarget);
    val = $target.val() + digit;
    if (/^\d$/.test(val) && (val !== '0' && val !== '1')) {
      e.preventDefault();
      return $target.val("0" + val + " / ");
    } else if (/^\d\d$/.test(val)) {
      e.preventDefault();
      return $target.val("" + val + " / ");
    }
  };

  formatForwardExpiry = function(e) {
    var $target, digit, val;
    digit = String.fromCharCode(e.which);
    if (!/^\d+$/.test(digit)) {
      return;
    }
    $target = $(e.currentTarget);
    val = $target.val();
    if (/^\d\d$/.test(val)) {
      return $target.val("" + val + " / ");
    }
  };

  formatForwardSlash = function(e) {
    var $target, slash, val;
    slash = String.fromCharCode(e.which);
    if (slash !== '/') {
      return;
    }
    $target = $(e.currentTarget);
    val = $target.val();
    if (/^\d$/.test(val) && val !== '0') {
      return $target.val("0" + val + " / ");
    }
  };

  formatBackExpiry = function(e) {
    var $target, value;
    if (e.meta) {
      return;
    }
    $target = $(e.currentTarget);
    value = $target.val();
    if (e.which !== 8) {
      return;
    }
    if (($target.prop('selectionStart') != null) && $target.prop('selectionStart') !== value.length) {
      return;
    }
    if (/\d(\s|\/)+$/.test(value)) {
      e.preventDefault();
      return $target.val(value.replace(/\d(\s|\/)*$/, ''));
    } else if (/\s\/\s?\d?$/.test(value)) {
      e.preventDefault();
      return $target.val(value.replace(/\s\/\s?\d?$/, ''));
    }
  };

  restrictNumeric = function(e) {
    var input;
    if (e.metaKey || e.ctrlKey) {
      return true;
    }
    if (e.which === 32) {
      return false;
    }
    if (e.which === 0) {
      return true;
    }
    if (e.which < 33) {
      return true;
    }
    input = String.fromCharCode(e.which);
    return !!/[\d\s]/.test(input);
  };

  restrictCardNumber = function(e) {
    var $target, card, digit, value;
    $target = $(e.currentTarget);
    digit = String.fromCharCode(e.which);
    if (!/^\d+$/.test(digit)) {
      return;
    }
    if (hasTextSelected($target)) {
      return;
    }
    value = ($target.val() + digit).replace(/\D/g, '');
    card = cardFromNumber(value);
    if (card) {
      return value.length <= card.length[card.length.length - 1];
    } else {
      return value.length <= 16;
    }
  };

  restrictExpiry = function(e) {
    var $target, digit, value;
    $target = $(e.currentTarget);
    digit = String.fromCharCode(e.which);
    if (!/^\d+$/.test(digit)) {
      return;
    }
    if (hasTextSelected($target)) {
      return;
    }
    value = $target.val() + digit;
    value = value.replace(/\D/g, '');
    if (value.length > 6) {
      return false;
    }
  };

  restrictCVC = function(e) {
    var $target, digit, val;
    $target = $(e.currentTarget);
    digit = String.fromCharCode(e.which);
    if (!/^\d+$/.test(digit)) {
      return;
    }
    val = $target.val() + digit;
    return val.length <= 4;
  };

  setCardType = function(e) {
    var $target, allTypes, card, cardType, val;
    $target = $(e.currentTarget);
    val = $target.val();
    cardType = $.payment.cardType(val) || 'unknown';
    if (!$target.hasClass(cardType)) {
      allTypes = (function() {
        var _i, _len, _results;
        _results = [];
        for (_i = 0, _len = cards.length; _i < _len; _i++) {
          card = cards[_i];
          _results.push(card.type);
        }
        return _results;
      })();
      $target.removeClass('unknown');
      $target.removeClass(allTypes.join(' '));
      $target.addClass(cardType);
      $target.toggleClass('identified', cardType !== 'unknown');
      return $target.trigger('payment.cardType', cardType);
    }
  };

  $.payment.fn.formatCardCVC = function() {
    this.payment('restrictNumeric');
    this.on('keypress', restrictCVC);
    return this;
  };

  $.payment.fn.formatCardExpiry = function() {
    this.payment('restrictNumeric');
    this.on('keypress', restrictExpiry);
    this.on('keypress', formatExpiry);
    this.on('keypress', formatForwardSlash);
    this.on('keypress', formatForwardExpiry);
    this.on('keydown', formatBackExpiry);
    return this;
  };

  $.payment.fn.formatCardNumber = function() {
    this.payment('restrictNumeric');
    this.on('keypress', restrictCardNumber);
    this.on('keypress', formatCardNumber);
    this.on('keydown', formatBackCardNumber);
    this.on('keyup', setCardType);
    this.on('paste', reFormatCardNumber);
    return this;
  };

  $.payment.fn.restrictNumeric = function() {
    this.on('keypress', restrictNumeric);
    return this;
  };

  $.payment.fn.cardExpiryVal = function() {
    return $.payment.cardExpiryVal($(this).val());
  };

  $.payment.cardExpiryVal = function(value) {
    var month, prefix, year, _ref;
    value = value.replace(/\s/g, '');
    _ref = value.split('/', 2), month = _ref[0], year = _ref[1];
    if ((year != null ? year.length : void 0) === 2 && /^\d+$/.test(year)) {
      prefix = (new Date).getFullYear();
      prefix = prefix.toString().slice(0, 2);
      year = prefix + year;
    }
    month = parseInt(month, 10);
    year = parseInt(year, 10);
    return {
      month: month,
      year: year
    };
  };

  $.payment.validateCardNumber = function(num) {
    var card, _ref;
    num = (num + '').replace(/\s+|-/g, '');
    if (!/^\d+$/.test(num)) {
      return false;
    }
    card = cardFromNumber(num);
    if (!card) {
      return false;
    }
    return (_ref = num.length, __indexOf.call(card.length, _ref) >= 0) && (card.luhn === false || luhnCheck(num));
  };

  $.payment.validateCardExpiry = function(month, year) {
    var currentTime, expiry, prefix, _ref;
    if (typeof month === 'object' && 'month' in month) {
      _ref = month, month = _ref.month, year = _ref.year;
    }
    if (!(month && year)) {
      return false;
    }
    month = $.trim(month);
    year = $.trim(year);
    if (!/^\d+$/.test(month)) {
      return false;
    }
    if (!/^\d+$/.test(year)) {
      return false;
    }
    if (!(parseInt(month, 10) <= 12)) {
      return false;
    }
    if (year.length === 2) {
      prefix = (new Date).getFullYear();
      prefix = prefix.toString().slice(0, 2);
      year = prefix + year;
    }
    expiry = new Date(year, month);
    currentTime = new Date;
    expiry.setMonth(expiry.getMonth() - 1);
    expiry.setMonth(expiry.getMonth() + 1, 1);
    return expiry > currentTime;
  };

  $.payment.validateCardCVC = function(cvc, type) {
    var _ref, _ref1;
    cvc = $.trim(cvc);
    if (!/^\d+$/.test(cvc)) {
      return false;
    }
    if (type) {
      return _ref = cvc.length, __indexOf.call((_ref1 = cardFromType(type)) != null ? _ref1.cvcLength : void 0, _ref) >= 0;
    } else {
      return cvc.length >= 3 && cvc.length <= 4;
    }
  };

  $.payment.cardType = function(num) {
    var _ref;
    if (!num) {
      return null;
    }
    return ((_ref = cardFromNumber(num)) != null ? _ref.type : void 0) || null;
  };

  $.payment.formatCardNumber = function(num) {
    var card, groups, upperLength, _ref;
    card = cardFromNumber(num);
    if (!card) {
      return num;
    }
    upperLength = card.length[card.length.length - 1];
    num = num.replace(/\D/g, '');
    num = num.slice(0, +upperLength + 1 || 9e9);
    if (card.format.global) {
      return (_ref = num.match(card.format)) != null ? _ref.join(' ') : void 0;
    } else {
      groups = card.format.exec(num);
      if (groups != null) {
        groups.shift();
      }
      return groups != null ? groups.join(' ') : void 0;
    }
  };

}).call(this);