/*
https://github.com/stripe/jquery.payment

Copyright (c) 2012 Stripe (alex@stripe.com)

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

// 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[1-5]/,
      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);
