/*jslint unparam: true, browser: true, indent: 2 */

;(function ($, window, document, undefined) {
  'use strict';

  Foundation.libs.abide = {
    name : 'abide',

    version : '4.3.0',

    settings : {
      live_validate : true,
      focus_on_invalid : true,
      timeout : 1000,
      patterns : {
        alpha: /[a-zA-Z]+/,
        alpha_numeric : /[a-zA-Z0-9]+/,
        integer: /-?\d+/,
        number: /-?(?:\d+|\d{1,3}(?:,\d{3})+)?(?:\.\d+)?/,

        // generic password: upper-case, lower-case, number/special character, and min 8 characters
        password : /(?=^.{8,}$)((?=.*\d)|(?=.*\W+))(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$/,

        // amex, visa, diners
        card : /^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6(?:011|5[0-9][0-9])[0-9]{12}|3[47][0-9]{13}|3(?:0[0-5]|[68][0-9])[0-9]{11}|(?:2131|1800|35\d{3})\d{11})$/,
        cvv : /^([0-9]){3,4}$/,

        // http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#valid-e-mail-address
        email : /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,

        url: /(https?|ftp|file|ssh):\/\/(((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?/,
        // abc.de
        domain: /^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}$/,

        datetime: /([0-2][0-9]{3})\-([0-1][0-9])\-([0-3][0-9])T([0-5][0-9])\:([0-5][0-9])\:([0-5][0-9])(Z|([\-\+]([0-1][0-9])\:00))/,
        // YYYY-MM-DD
        date: /(?:19|20)[0-9]{2}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))/,
        // HH:MM:SS
        time : /(0[0-9]|1[0-9]|2[0-3])(:[0-5][0-9]){2}/,
        dateISO: /\d{4}[\/\-]\d{1,2}[\/\-]\d{1,2}/,
        // MM/DD/YYYY
        month_day_year : /(0[1-9]|1[012])[- \/.](0[1-9]|[12][0-9]|3[01])[- \/.](19|20)\d\d/,

        // #FFF or #FFFFFF
        color: /^#?([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$/
      }
    },

    timer : null,

    init : function (scope, method, options) {
      if (typeof method === 'object') {
        $.extend(true, this.settings, method);
      }

      if (typeof method !== 'string') {
        if (!this.settings.init) { this.events(); }

      } else {
        return this[method].call(this, options);
      }
    },

    events : function () {
      var self = this,
          forms = $('form[data-abide]', this.scope).attr('novalidate', 'novalidate');

      forms
        .on('submit validate', function (e) {
          return self.validate($(this).find('input, textarea, select').get(), e);
        });

      this.settings.init = true;

      if (!this.settings.live_validate) return;

      forms
        .find('input, textarea, select')
        .on('blur change', function (e) {
          self.validate([this], e);
        })
        .on('keydown', function (e) {
          clearTimeout(self.timer);
          self.timer = setTimeout(function () {
            self.validate([this], e);
          }.bind(this), self.settings.timeout);
        });
    },

    validate : function (els, e) {
      var validations = this.parse_patterns(els),
          validation_count = validations.length,
          form = $(els[0]).closest('form');

      while (validation_count--) {
        if (!validations[validation_count] && /submit/.test(e.type)) {
          if (this.settings.focus_on_invalid) els[validation_count].focus();
          form.trigger('invalid');
          $(els[validation_count]).closest('form').attr('data-invalid', '');
          return false;
        }
      }

      if (/submit/.test(e.type)) {
        form.trigger('valid');
      }

      form.removeAttr('data-invalid');

      return true;
    },

    parse_patterns : function (els) {
      var count = els.length,
          el_patterns = [];

      for (var i = count - 1; i >= 0; i--) {
        el_patterns.push(this.pattern(els[i]));
      }

      return this.check_validation_and_apply_styles(el_patterns);
    },

    pattern : function (el) {
      var type = el.getAttribute('type'),
          required = typeof el.getAttribute('required') === 'string';

      if (this.settings.patterns.hasOwnProperty(type)) {
        return [el, this.settings.patterns[type], required];
      }

      var pattern = el.getAttribute('pattern') || '';

      if (this.settings.patterns.hasOwnProperty(pattern) && pattern.length > 0) {
        return [el, this.settings.patterns[pattern], required];
      } else if (pattern.length > 0) {
        return [el, new RegExp(pattern), required];
      }

      pattern = /.*/;

      return [el, pattern, required];
    },

    check_validation_and_apply_styles : function (el_patterns) {
      var count = el_patterns.length,
          validations = [];

      for (var i = count - 1; i >= 0; i--) {
        var el = el_patterns[i][0],
            required = el_patterns[i][2],
            value = el.value,
            is_radio = el.type === "radio",
            valid_length = (required) ? (el.value.length > 0) : true;

        if (is_radio && required) {
          validations.push(this.valid_radio(el, required));
        } else {
          if (el_patterns[i][1].test(value) && valid_length ||
            !required && el.value.length < 1) {
            $(el).removeAttr('data-invalid').parent().removeClass('error');
            validations.push(true);
          } else {
            $(el).attr('data-invalid', '').parent().addClass('error');
            validations.push(false);
          }
        }
      }

      return validations;
    },

    valid_radio : function (el, required) {
      var name = el.getAttribute('name'),
          group = document.getElementsByName(name),
          count = group.length,
          valid = false;

      for (var i=0; i < count; i++) {
        if (group[i].checked) valid = true;
      }

      for (var i=0; i < count; i++) {
        if (valid) {
          $(group[i]).removeAttr('data-invalid').parent().removeClass('error');
        } else {
          $(group[i]).attr('data-invalid', '').parent().addClass('error');
        }
      }

      return valid;
    }
  };
}(Foundation.zj, this, this.document));