$.fn.ketchup.validation('required', function(element, value) {
  if(element.attr('type') == 'checkbox') {
    if(element.attr('checked') == true) return true;
    else return false;
  } else if (element.attr('type') == 'radio') {
    return $("input[" + element.attr('name') + "]").filter(function() { return $(this).attr('checked');}).length != 0;
  } else {
    if(value.length == 0) return false;
    else return true;
  }
});


$.fn.ketchup.validation('minlength', function(element, value, minlength) {
  if(value.length < minlength) return false;
  else return true;
});

$.fn.ketchup.validation('maxlength', function(element, value, maxlength) {
  if(value.length > maxlength) return false;
  else return true;
});

$.fn.ketchup.validation('rangelength', function(element, value, minlength, maxlength) {
  if(value.length >= minlength && value.length <= maxlength) return true;
  else return false;
});


$.fn.ketchup.validation('min', function(element, value, min) {
  if(parseInt(value) < min) return false;
  else return true;
});

$.fn.ketchup.validation('max', function(element, value, max) {
  if(parseInt(value) > max) return false;
  else return true;
});

$.fn.ketchup.validation('range', function(element, value, min, max) {
  if(parseInt(value) >= min && parseInt(value) <= max) return true;
  else return false;
});


$.fn.ketchup.validation('number', function(element, value) {
  if(/^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/.test(value)) return true;
  else return false;
});

$.fn.ketchup.validation('digits', function(element, value) {
  if(/^\d+$/.test(value)) return true;
  else return false;
});


$.fn.ketchup.validation('email', function(element, value) {
  if(/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i.test(value)) return true;
  else return false;
});


$.fn.ketchup.validation('url', function(element, value) {
  if(/^(https?|ftp):\/\/(((([a-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-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value)) return true;
  else return false;
});


$.fn.ketchup.validation('username', function(element, value) {
  if(/^([a-zA-Z])[a-zA-Z_-]*[\w_-]*[\S]$|^([a-zA-Z])[0-9_-]*[\S]$|^[a-zA-Z]*[\S]$/.test(value)) return true;
  else return false;
});


$.fn.ketchup.validation('match', function(element, value, match) {
  if($(match).val() != value) return false;
  else return true;
});


$.fn.ketchup.validation('date', function(element, value) {
  if(!/Invalid|NaN/.test(new Date(value))) return true;
  else return false;
});

// Custom Functions

$.fn.ketchup.validation('yesno', function(element, value, min, max) {
  if(parseInt(value) >= min && parseInt(value) <= max) return true;
  else return false;
});

$.fn.ketchup.validation('dateoptional', function(element, value) {
  return value.length == 0 || !/Invalid|NaN/.test(new Date(value));
});

// Ensures the date is in 99/99/9999 format.
$.fn.ketchup.validation('dateformat', function(element, value) {
   return value.length == 0 || /^\d{2}\/\d{2}\/\d{4}$/.test(value);
});

// Ensures the date entered is less than the current date.
$.fn.ketchup.validation('pastdate', function(element, value) {
   return value.length == 0 || (new Date(value) <= new Date());
});

// Ensures the social security number is in a valid format.
$.fn.ketchup.validation('ssn', function(element, value) {
   return value.length == 0 || /^\d{3}-\d{2}-\d{4}$/.test(value);
});

// Ensures the zip code is in a valid format of either 99999 or 99999-9999.
$.fn.ketchup.validation('zipcode', function(element, value) {
   return value.length == 0 || /^\d{5}(?:-\d{4})?$/.test(value);
});

// Ensures the phone number is in a valid format beginning with 999-9999 or 999-999-9999.
$.fn.ketchup.validation('phone', function(element, value, with_extension) {
   with_extension = (with_extension !== undefined) ? with_extension : false; // defaults to false if not specified.
   return value.length == 0 || /^\d{3}-(?:\d{4}|\d{3}-\d{4})$/.test(value) || (with_extension && /^\d{3}-(?:\d{4}|\d{3}-\d{4}) /.test(value));
});

// Only validates the email format if the user has entered a value.
$.fn.ketchup.validation('emailoptional', function(element, value) {
  return value.length == 0 || /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?$/i.test(value);
});

// if the cond element is not checked or a value has been provided, the element is valid.
$.fn.ketchup.validation('conditional', function(element, value, cond) {
  return !$(cond).attr("checked") || value.length != 0;
});

// loops through all of the checkboxes with a given name and requires the field if none of the checkboxes have been checked.
$.fn.ketchup.validation('conditionalMulti', function(element, value, cond) {
  var valid = false;
  $("input[name=" + cond + "]").each(function() {
     if ($(this).attr("checked")) {
        valid = true;
        return false; // breaks the 'loop' since at least one of the values has been checked.
     }
  });
  return value.length != 0 || valid;
});

/* compares the value of this element to another.  If it is a checkbox or radio, gets the element's value by the name
 to get the currently selected value.  The other_name argument is just for a suitable name to display in the error message
 for the other field. */
$.fn.ketchup.validation('notequal', function(element, value, other, other_name) {
  var real_value = value;
  var other_value = $(other).val();
  if (element.attr("type") == "radio" || element.attr("type") == "checkbox") {
     real_value = $("input[name=" + element.attr("name") + "]:checked").val();
  }
  if (($(other).attr("type") == "radio" || $(other).attr("type") == "checkbox") && !/:checked/.test(other)) {
     other_value = $(other + ":checked").val();
  }
  return real_value != other_value;
});

$.fn.ketchup.validation('conditionalS', function(element, value, cond) {
  return value.length != 0 || $(cond).val() != 1;
});

// Other Stuffs

function watchSelect(type) {
  $('input['+$.fn.ketchup.defaults.validationAttribute+'*="'+type+'"]').each(function() {
    var el = $(this);

    $('input[name="'+el.attr('name')+'"]').each(function() {
      var al = $(this);
      if(al.attr($.fn.ketchup.defaults.validationAttribute).indexOf(type) == -1) al.blur(function() { el.blur(); });
    });
  });
}

$(document).ready(function() {
  watchSelect('minselect');
  watchSelect('maxselect');
  watchSelect('rangeselect');
});

$.fn.ketchup.validation('minselect', function(element, value, min) {
  if($('input[name="'+element.attr('name')+'"]:checked').length >= min) return true;
  else return false;
});

$.fn.ketchup.validation('maxselect', function(element, value, max) {
  if($('input[name="'+element.attr('name')+'"]:checked').length <= max) return true;
  else return false;
});

$.fn.ketchup.validation('rangeselect', function(element, value, min, max) {
  var checked = $('input[name="'+element.attr('name')+'"]:checked');
  
  if(checked.length >= min && checked.length <= max) return true;
  else return false;
});