jQuery.webshims.register('form-number-date-api', function($, webshims, window, document, undefined){
	"use strict";
	
	//ToDo
	if(!webshims.getStep){
		webshims.getStep = function(elem, type){
			var step = $.attr(elem, 'step');
			if(step === 'any'){
				return step;
			}
			type = type || getType(elem);
			if(!typeModels[type] || !typeModels[type].step){
				return step;
			}
			step = typeProtos.number.asNumber(step);
			return ((!isNaN(step) && step > 0) ? step : typeModels[type].step) * typeModels[type].stepScaleFactor;
		};
	}
	if(!webshims.addMinMaxNumberToCache){
		webshims.addMinMaxNumberToCache = function(attr, elem, cache){
			if (!(attr+'AsNumber' in cache)) {
				cache[attr+'AsNumber'] = typeModels[cache.type].asNumber(elem.attr(attr));
				if(isNaN(cache[attr+'AsNumber']) && (attr+'Default' in typeModels[cache.type])){
					cache[attr+'AsNumber'] = typeModels[cache.type][attr+'Default'];
				}
			}
		};
	}
	
	var nan = parseInt('NaN', 10),
		doc = document,
		typeModels = webshims.inputTypes,
		isNumber = function(string){
			return (typeof string == 'number' || (string && string == string * 1));
		},
		supportsType = function(type){
			return ($('<input type="'+type+'" />').prop('type') === type);
		},
		getType = function(elem){
			return (elem.getAttribute('type') || '').toLowerCase();
		},
		isDateTimePart = function(string){
			return (isNumber(string) || (string && string == '0' + (string * 1)));
		},
		addMinMaxNumberToCache = webshims.addMinMaxNumberToCache,
		addleadingZero = function(val, len){
			val = ''+val;
			len = len - val.length;
			for(var i = 0; i < len; i++){
				val = '0'+val;
			}
			return val;
		},
		EPS = 1e-7,
		typeBugs = webshims.bugs.valueAsNumberSet || webshims.bugs.bustedValidity
	;
	
	webshims.addValidityRule('stepMismatch', function(input, val, cache, validityState){
		if(val === ''){return false;}
		if(!('type' in cache)){
			cache.type = getType(input[0]);
		}
		//stepmismatch with date is computable, but it would be a typeMismatch (performance)
		if(cache.type == 'date'){
			return false;
		}
		var ret = (validityState || {}).stepMismatch, base;
		if(typeModels[cache.type] && typeModels[cache.type].step){
			if( !('step' in cache) ){
				cache.step = webshims.getStep(input[0], cache.type);
			}
			
			if(cache.step == 'any'){return false;}
			
			if(!('valueAsNumber' in cache)){
				cache.valueAsNumber = typeModels[cache.type].asNumber( val );
			}
			if(isNaN(cache.valueAsNumber)){return false;}
			
			addMinMaxNumberToCache('min', input, cache);
			base = cache.minAsNumber;
			if(isNaN(base)){
				base = typeModels[cache.type].stepBase || 0;
			}
			
			ret =  Math.abs((cache.valueAsNumber - base) % cache.step);
							
			ret = !(  ret <= EPS || Math.abs(ret - cache.step) <= EPS  );
		}
		return ret;
	});
	
	
	
	[{name: 'rangeOverflow', attr: 'max', factor: 1}, {name: 'rangeUnderflow', attr: 'min', factor: -1}].forEach(function(data, i){
		webshims.addValidityRule(data.name, function(input, val, cache, validityState) {
			var ret = (validityState || {})[data.name] || false;
			if(val === ''){return ret;}
			if (!('type' in cache)) {
				cache.type = getType(input[0]);
			}
			if (typeModels[cache.type] && typeModels[cache.type].asNumber) {
				if(!('valueAsNumber' in cache)){
					cache.valueAsNumber = typeModels[cache.type].asNumber( val );
				}
				if(isNaN(cache.valueAsNumber)){
					return false;
				}
				
				addMinMaxNumberToCache(data.attr, input, cache);
				
				if(isNaN(cache[data.attr+'AsNumber'])){
					return ret;
				}
				ret = ( cache[data.attr+'AsNumber'] * data.factor <  cache.valueAsNumber * data.factor - EPS );
			}
			return ret;
		});
	});
	
	webshims.reflectProperties(['input'], ['max', 'min', 'step']);
	
	
	//IDLs and methods, that aren't part of constrain validation, but strongly tight to it
	var valueAsNumberDescriptor = webshims.defineNodeNameProperty('input', 'valueAsNumber', {
		prop: {
			get: function(){
				var elem = this;
				var type = getType(elem);
				var ret = (typeModels[type] && typeModels[type].asNumber) ? 
					typeModels[type].asNumber($.prop(elem, 'value')) :
					(valueAsNumberDescriptor.prop._supget && valueAsNumberDescriptor.prop._supget.apply(elem, arguments));
				if(ret == null){
					ret = nan;
				}
				return ret;
			},
			set: function(val){
				var elem = this;
				var type = getType(elem);
				if(typeModels[type] && typeModels[type].numberToString){
					//is NaN a number?
					if(isNaN(val)){
						$.prop(elem, 'value', '');
						return;
					}
					var set = typeModels[type].numberToString(val);
					if(set !==  false){
						$.prop(elem, 'value', set);
					} else {
						webshims.warn('INVALID_STATE_ERR: DOM Exception 11');
					}
				} else {
					valueAsNumberDescriptor.prop._supset && valueAsNumberDescriptor.prop._supset.apply(elem, arguments);
				}
			}
		}
	});
	
	var valueAsDateDescriptor = webshims.defineNodeNameProperty('input', 'valueAsDate', {
		prop: {
			get: function(){
				var elem = this;
				var type = getType(elem);
				return (typeModels[type] && typeModels[type].asDate && !typeModels[type].noAsDate) ? 
					typeModels[type].asDate($.prop(elem, 'value')) :
					valueAsDateDescriptor.prop._supget && valueAsDateDescriptor.prop._supget.call(elem) || null;
			},
			set: function(value){
				var elem = this;
				var type = getType(elem);
				if(typeModels[type] && typeModels[type].dateToString && !typeModels[type].noAsDate){
					
					if(value === null){
						$.prop(elem, 'value', '');
						return '';
					}
					var set = typeModels[type].dateToString(value);
					if(set !== false){
						$.prop(elem, 'value', set);
						return set;
					} else {
						webshims.warn('INVALID_STATE_ERR: DOM Exception 11');
					}
				} else {
					return valueAsDateDescriptor.prop._supset && valueAsDateDescriptor.prop._supset.apply(elem, arguments) || null;
				}
			}
		}
	});
	
	var typeProtos = {
		
		number: {
			mismatch: function(val){
				return !(isNumber(val));
			},
			step: 1,
			//stepBase: 0, 0 = default
			stepScaleFactor: 1,
			asNumber: function(str){
				return (isNumber(str)) ? str * 1 : nan;
			},
			numberToString: function(num){
				return (isNumber(num)) ? num : false;
			}
		},
		
		range: {
			minDefault: 0,
			maxDefault: 100
		},
		
		date: {
			mismatch: function(val){
				if(!val || !val.split || !(/\d$/.test(val))){return true;}
				var valA = val.split(/\u002D/);
				if(valA.length !== 3){return true;}
				var ret = false;
				$.each(valA, function(i, part){
					if(!isDateTimePart(part)){
						ret = true;
						return false;
					}
				});
				if(ret){return ret;}
				if(valA[0].length !== 4 || valA[1].length != 2 || valA[1] > 12 || valA[2].length != 2 || valA[2] > 33){
					ret = true;
				}
				return (val !== this.dateToString( this.asDate(val, true) ) );
			},
			step: 1,
			//stepBase: 0, 0 = default
			stepScaleFactor:  86400000,
			asDate: function(val, _noMismatch){
				if(!_noMismatch && this.mismatch(val)){
					return null;
				}
				return new Date(this.asNumber(val, true));
			},
			asNumber: function(str, _noMismatch){
				var ret = nan;
				if(_noMismatch || !this.mismatch(str)){
					str = str.split(/\u002D/);
					ret = Date.UTC(str[0], str[1] - 1, str[2]);
				}
				return ret;
			},
			numberToString: function(num){
				return (isNumber(num)) ? this.dateToString(new Date( num * 1)) : false;
			},
			dateToString: function(date){
				return (date && date.getFullYear) ? date.getUTCFullYear() +'-'+ addleadingZero(date.getUTCMonth()+1, 2) +'-'+ addleadingZero(date.getUTCDate(), 2) : false;
			}
		},
		time: {
			mismatch: function(val, _getParsed){
				if(!val || !val.split || !(/\d$/.test(val))){return true;}
				val = val.split(/\u003A/);
				if(val.length < 2 || val.length > 3){return true;}
				var ret = false,
					sFraction;
				if(val[2]){
					val[2] = val[2].split(/\u002E/);
					sFraction = parseInt(val[2][1], 10);
					val[2] = val[2][0];
				}
				$.each(val, function(i, part){
					if(!isDateTimePart(part) || part.length !== 2){
						ret = true;
						return false;
					}
				});
				if(ret){return true;}
				if(val[0] > 23 || val[0] < 0 || val[1] > 59 || val[1] < 0){
					return true;
				}
				if(val[2] && (val[2] > 59 || val[2] < 0 )){
					return true;
				}
				if(sFraction && isNaN(sFraction)){
					return true;
				}
				if(sFraction){
					if(sFraction < 100){
						sFraction *= 100;
					} else if(sFraction < 10){
						sFraction *= 10;
					}
				}
				return (_getParsed === true) ? [val, sFraction] : false;
			},
			step: 60,
			stepBase: 0,
			stepScaleFactor:  1000,
			asDate: function(val){
				val = new Date(this.asNumber(val));
				return (isNaN(val)) ? null : val;
			},
			asNumber: function(val){
				var ret = nan;
				val = this.mismatch(val, true);
				if(val !== true){
					ret = Date.UTC('1970', 0, 1, val[0][0], val[0][1], val[0][2] || 0);
					if(val[1]){
						ret += val[1];
					}
				}
				return ret;
			},
			dateToString: function(date){
				if(date && date.getUTCHours){
					var str = addleadingZero(date.getUTCHours(), 2) +':'+ addleadingZero(date.getUTCMinutes(), 2),
						tmp = date.getSeconds()
					;
					if(tmp != "0"){
						str += ':'+ addleadingZero(tmp, 2);
					}
					tmp = date.getUTCMilliseconds();
					if(tmp != "0"){
						str += '.'+ addleadingZero(tmp, 3);
					}
					return str;
				} else {
					return false;
				}
			}
		}
//		,'datetime-local': {
//			mismatch: function(val, _getParsed){
//				if(!val || !val.split || (val+'special').split(/\u0054/).length !== 2){return true;}
//				val = val.split(/\u0054/);
//				return ( typeProtos.date.mismatch(val[0]) || typeProtos.time.mismatch(val[1], _getParsed) );
//			},
//			noAsDate: true,
//			asDate: function(val){
//				val = new Date(this.asNumber(val));
//				
//				return (isNaN(val)) ? null : val;
//			},
//			asNumber: function(val){
//				var ret = nan;
//				var time = this.mismatch(val, true);
//				if(time !== true){
//					val = val.split(/\u0054/)[0].split(/\u002D/);
//					
//					ret = Date.UTC(val[0], val[1] - 1, val[2], time[0][0], time[0][1], time[0][2] || 0);
//					if(time[1]){
//						ret += time[1];
//					}
//				}
//				return ret;
//			},
//			dateToString: function(date, _getParsed){
//				return typeProtos.date.dateToString(date) +'T'+ typeProtos.time.dateToString(date, _getParsed);
//			}
//		}
	};
	
	if(typeBugs || !supportsType('range') || !supportsType('time')){
		typeProtos.range = $.extend({}, typeProtos.number, typeProtos.range);
		typeProtos.time = $.extend({}, typeProtos.date, typeProtos.time);
//		typeProtos['datetime-local'] = $.extend({}, typeProtos.date, typeProtos.time, typeProtos['datetime-local']);
	}
	
	if(typeBugs || !supportsType('number')){
		webshims.addInputType('number', typeProtos.number);
	}
	
	if(typeBugs || !supportsType('range')){
		webshims.addInputType('range', typeProtos.range);
	}
	if(typeBugs || !supportsType('date')){
		webshims.addInputType('date', typeProtos.date);
	}
	if(typeBugs || !supportsType('time')){
		webshims.addInputType('time', typeProtos.time);
	}

//	if(typeBugs || !supportsType('datetime-local')){
//		webshims.addInputType('datetime-local', typeProtos['datetime-local']);
//	}
		
});