/**
* ÆÄÀϸí: common.validate.js
* ¼³  ¸í: Æû üũ, °ª Ç¥ÁØÈ­
* ÀÛ¼ºÀÚ: jstoy project
* ³¯  Â¥: 2003-10-24
	- 2004.02.18 setValue, getValue Æû.values ±â´É Ãß°¡
	- 2004.02.20 ±×·ìÈ­ Çʼö±â´É Ãß°¡ ex) required="test" requirenum="2"
	- 2004.02.25 onsubmit="return validate(this)" ±â´ÉÀ» ´Ù½Ã ³Ö¾ú½À´Ï´Ù..
	- 2004.02.26 °£´ÜÇÑ debugging ±â´É Ãß°¡ (try..catch..±¸¹® »ç¿ë)
***********************************************
*/

var FormCheckerObject = null;
var FormCheckerLoadAction = window.onload;
window.onload = function() {
	try {
		FormCheckerLoadAction();
	} catch (e) {
		// null
	}
	FormCheckerObject = new FormChecker;
}

function validate(form)
{
	try {
		return FormCheckerObject.validate(form);
	} catch (e) {
		alert(e);
		return false;
	}
}

FormChecker = function() {
	var classObj = this;

	// ¹Ì¸® Á¤ÀÇµÈ ¿¡·¯ ¸Þ½ÃÁöµé
	this.FORM_ERROR_MSG = {
	   common   : "ÀÔ·ÂÇϽŠ³»¿ëÀÌ ±ÔÄ¢¿¡ ¾î±ß³³´Ï´Ù.\n±ÔÄ¢¿¡ ¾î±ß³ª´Â ³»¿ëÀ» ¹Ù·ÎÀâ¾ÆÁÖ¼¼¿ä.",

	   required : "¹Ýµå½Ã ÀÔ·ÂÇÏ¼Å¾ß ÇÏ´Â »çÇ×ÀÔ´Ï´Ù.",
	   required_group : "ÀÌ Ç׸ñµé Áß¿¡ {requirenum} °³ ÀÌ»óÀÇ Ç׸ñÀÌ ÀԷµǾî¾ß ÇÕ´Ï´Ù.",
	   notequal : "ÀÔ·ÂµÈ ³»¿ëÀÌ ÀÏÄ¡ÇÏÁö ¾Ê½À´Ï´Ù.",
	   invalid  : "ÀÔ·ÂµÈ ³»¿ëÀÌ Çü½Ä¿¡ ¾î±ß³³´Ï´Ù.",
	   minbyte  : "ÀÔ·ÂµÈ ³»¿ëÀÇ ±æÀÌ°¡ {minbyte} Byte ÀÌ»óÀ̾î¾ß ÇÕ´Ï´Ù.",
	   maxbyte  : "ÀÔ·ÂµÈ ³»¿ëÀÇ ±æÀÌ°¡ {maxbyte} Byte¸¦ ÃÊ°úÇÒ ¼ö ¾ø½À´Ï´Ù."
	}
	// Æû üũ ÇÔ¼ö ¸ÅÇÎ
	this.VALIDATE_FUNCTION = {
	   email   : this.func_isValidEmail,
	   phone   : this.func_isValidPhone,
	   userid  : this.func_isValidUserid,
	   hangul  : this.func_hasHangul,
	   number  : this.func_isNumeric,
	   engonly : this.func_alphaOnly,
	   jumin   : this.func_isValidJumin,
	   bizno   : this.func_isValidBizNo
	}
	/**
	* ¿¡·¯ Ãâ·Â Ç÷¡±×
	* all : 1, one : 2, one per object : 3
	*/
	this.ERROR_MODE = 1;

	for (var i=0,s=document.forms.length; i<s; i++) {
		var form = document.forms[i];
		form.getValue = function(elName) {
			var el = this.elements[elName];
			var ret = new Array();
			if (typeof el == 'undefined') {
				return null;
			} else if (typeof el.length != 'undefined') {
				if (el.type == 'select-one') {
					return el.options[el.selectedIndex].value;
				} else {
					for (var j=0,t=el.length; j<t; j++) {
						if (el[j].checked) {
							if (el[j].getAttribute('TYPE') == 'radio') return el[j].value;
							if (el[j].getAttribute('TYPE') == 'checkbox') ret[ret.length] = el[j].value;
						}
					}
					return ret;
				}
				return null;
			} else {
				return el.value;
			}
			return null;
		}
		form.setValue = function(elName, value) {
			var el = this.elements[elName];
			if (typeof el.length != 'undefined') {
				if (el.type == 'select-one') {
					for (var j=0,t=el.length; j<t; j++) {
						if (el.options[j].value == value)
							el.selectedIndex = j;
					}
				} else {
					for (var j=0,t=el.length; j<t; j++) {
						if (el[j].getAttribute('TYPE') == 'radio')
							if (el[j].value == value) el[j].checked = true;
						if (el[j].getAttribute('TYPE') == 'checkbox') {
							if (value.length != undefined) {
								for (var k=0,cnt=value.length; k<cnt; j++)
									el[j].checked = (el[j].value == value[k]);
							} else {
								el[j].checked = (el[j].value == value);
							}
						}
					}
				}
			} else if (typeof el != 'undefined') {
				el.value = value;
			}
		}
		if (form.getAttribute("VALIDATE") !== null) {
			form.submitAction = form.onsubmit;
			form.onsubmit = function() {
				if(typeof this.submitAction != 'undefined') this.submitAction();
				try {
					return classObj.validate(this);
				} catch (e) {
					alert(e);
					return false;
				}
			}
		}

		//==-- ±âº»°ª ¼¼Æà --==//
		var fl_values = typeof form.values == 'object' ? true : false;
		for (var e = 0; e < form.elements.length; e++) {
			var el = form.elements[e];
			if (fl_values) {
				if (!this.isValidateElement(el)) continue;
				var key = el.name.replace(/\[\]$/,'');
				var value = form.values[key];
				if (value) form.setValue(el.name,value);
			}
			if (el.getAttribute("HNAME") == null || el.getAttribute("HNAME") == "")
				el.setAttribute("HNAME", el.getAttribute("NAME"));
		}
	}
}

FormChecker.prototype.isValidateElement = function(el) {
	return (el.tagName.toLowerCase() == "fieldset" || el.tagName.toLowerCase() == "object" ||
		el.name == null || el.name == "")
		? false : true;
}

FormChecker.prototype.validate = function(form) {
	this.isErr	  = false;
	this.errMsg	 = this.FORM_ERROR_MSG["common"] ? this.FORM_ERROR_MSG["common"] + "\n\n" : "";
	this.errObj	 = null;
	this.curObj	 = null;

	var old_required = new Array;
	for (var i=0, s=form.elements.length; i<s; i++) {
		var el = form.elements[i];
		if (!this.isValidateElement(el)) continue;

		var required   = el.getAttribute("REQUIRED");
		var requirenum = el.getAttribute("REQUIRENUM");
		var trim	= el.getAttribute("TRIM");
		var minbyte = el.getAttribute("MINBYTE");
		var maxbyte = el.getAttribute("MAXBYTE");
		var option  = el.getAttribute("OPTION");
		var match   = el.getAttribute("MATCH");
		var span	= el.getAttribute("SPAN");
		var glue	= el.getAttribute("GLUE");
		var pattern = el.getAttribute("PATTERN");
		var elValue = form.getValue(el.name);

		if (el.type.toLowerCase() == "radio" || el.type.toLowerCase() == "checkbox") {
			var elType = "check";
		} else if (el.type.toLowerCase() == "file") {
			var elType = "file";
		} else if (el.tagName.toLowerCase() == "select") {
			var elType = "select";
		} else if (el.tagName.toLowerCase() == "input" || el.tagName.toLowerCase() == "textarea") {
			var elType = "text";
		}
		if (elType == "text") {
			switch (trim) {
				case "ltrim": el.value = el.value.ltrim(); break;
				case "rtrim": el.value = el.value.rtrim(); break;
				case "notrim": break;
				default: el.value = el.value.trim();  break;
			}		
		}

		if (required !== null) {
			if (required == "") {
				if (elValue == null || elValue == "")
					this.addError(el,"required");
			} else {
				var fl_old_required = false;
				for (var j=0; j<old_required.length; j++)
					if (old_required[j] == required) fl_old_required = true;

				if (!fl_old_required) {
					old_required[old_required.length] = required;
					var reqNum = 0;
					var reqHname = new Array;
					for (var j=0; j<s; j++) {
						var reqEl = form.elements[j];
						if (!this.isValidateElement(reqEl)) continue;
						if (reqEl.getAttribute("REQUIRED") == required) {
							var reqElName = form.getValue(reqEl.name);
							if (reqElName != "" && reqElName != null) reqNum++;
							reqHname[reqHname.length] = reqEl.getAttribute("HNAME");
						}
					}
					if (reqNum < requirenum) {
						this.addError(el,"required_group",reqHname.join(", "));
					}
				}
			}
		}
		if (elType == "text") {
			if (minbyte != null) {
				if (elValue.bytes() < parseInt(minbyte,10)) this.addError(el,"minbyte");
			}
			if (maxbyte != null) {
				if (elValue.bytes() > parseInt(maxbyte,10)) this.addError(el,"maxbyte");
			}
			if (match != null) {
				if (typeof form.elements[match] == 'undefined')
					throw "Element '"+ match +"' is not found.";
				else if (elValue != form.elements[match].value)
					this.addError(el,"notequal");
			}
			if (elValue != "" && option !== null) {
				if (typeof this.VALIDATE_FUNCTION[option] == 'undefined') {
					throw "Function map '"+ option +"' is not found.";
				} else if (span !== null) {
					var _value = new Array();
					for (var j = 0; j < span; j++) {
						if (typeof form.elements[i+j] == 'undefined')
							throw (i+j) +"th Element is not found.";
						_value[j] = form.elements[i+j].value;
					}
					var value = _value.join(glue === null ? "" : glue);
					var tmp_msg = this.VALIDATE_FUNCTION[option](el, value);
					if (tmp_msg !== true) this.addError(el,tmp_msg);
				} else {
					var tmp_msg = this.VALIDATE_FUNCTION[option](el);
					if (tmp_msg !== true) this.addError(el,tmp_msg);
				}
			}
			if (elValue != "" && pattern !== null) {
				try {
					pattern = new RegExp(pattern);
				} catch (e) {
					throw "Invaild Regular Expression '"+ pattern +"'";
				}
				
			alert(typeof this.VALIDATE_FUNCTION[option]);
				if (!pattern.test(elValue)) this.addError(el,'invalid');
			}
		}
	}
	if (this.isErr == true) {
		alert(this.errMsg);
		if (this.errObj.getAttribute("delete") !== null)
			this.errObj.value = "";
		if (this.errObj.getAttribute("select") !== null)
			this.errObj.select();
		if (this.errObj.getAttribute("nofocus") === null)
			this.errObj.focus();
	}
	return !this.isErr;
}

FormChecker.prototype.addError = function(el, type, elName) {
	var pattern = /\{([a-zA-Z0-9_]+)\}/i;
	var msg = (this.FORM_ERROR_MSG[type]) ? this.FORM_ERROR_MSG[type] : type;
	var elName = elName ? elName : el.getAttribute("hname");

	if (el.getAttribute("errmsg") != null) msg = el.getAttribute("errmsg");

	if (pattern.test(msg) == true) {
		while (pattern.exec(msg)) msg = msg.replace(pattern, el.getAttribute(RegExp.$1));
	}
	if (!this.errObj || this.ERROR_MODE != 2) {
		if (this.curObj == el && el.getAttribute("errmsg") == null) {
			if (this.ERROR_MODE == 1)
				this.errMsg += "   - "+ msg +"\n";
			} else if (this.curObj != el) {
				if (this.curObj)
					this.errMsg += "\n";
			this.errMsg += "["+ elName +"]\n   - "+ msg +"\n";
		}
	}
	if (!this.errObj) this.errObj = el;
	this.curObj = el;
	this.isErr  = true;
	return;
}

/// ÆÐÅÏ °Ë»ç ÇÔ¼öµé ///
FormChecker.prototype.func_isValidEmail = function(el,value) {
   var value = value ? value : el.value;
   var pattern = /^[_a-zA-Z0-9-\.]+@[\.a-zA-Z0-9-]+\.[a-zA-Z]+$/;
   return (pattern.test(value)) ? true : "invalid";
}

FormChecker.prototype.func_isValidUserid = function(el) {
   var pattern = /^[a-zA-Z]{1}[a-zA-Z0-9_]{3,11}$/;
   return (pattern.test(el.value)) ? true : "4ÀÚÀÌ»ó 12ÀÚ ¹Ì¸¸,\n ¿µ¹®,¼ýÀÚ, _ ¹®ÀÚ¸¸ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù";
}

FormChecker.prototype.func_hasHangul = function(el) {
   var pattern = /[°¡-Èþ]/;
   return (pattern.test(el.value)) ? true : "¹Ýµå½Ã ÇѱÛÀ» Æ÷ÇÔÇØ¾ß ÇÕ´Ï´Ù";
}

FormChecker.prototype.func_alphaOnly = function(el) {
   var pattern = /^[a-zA-Z]+$/;
   return (pattern.test(el.value)) ? true : "invalid";
}

FormChecker.prototype.func_isNumeric = function(el) {
   var pattern = /^[0-9]+$/;
   return (pattern.test(el.value)) ? true : "¹Ýµå½Ã ¼ýÀڷθ¸ ÀÔ·ÂÇØ¾ß ÇÕ´Ï´Ù";
}

FormChecker.prototype.func_isValidJumin = function(el,value) {
	var pattern = /^([0-9]{6})-?([0-9]{7})$/;
	var num = value ? value : el.value;
	if (!pattern.test(num)) return "invalid";
	num = RegExp.$1 + RegExp.$2;

	var sum = 0;
	var last = num.charCodeAt(12) - 0x30;
	var bases = "234567892345";
	for (var i=0; i<12; i++) {
		if (isNaN(num.substring(i,i+1))) return "invalid";
		sum += (num.charCodeAt(i) - 0x30) * (bases.charCodeAt(i) - 0x30);
	}
	var mod = sum % 11;
	return ((11 - mod) % 10 == last) ? true : "invalid";
}

FormChecker.prototype.func_isValidBizNo = function(el,value) {
	var pattern = /([0-9]{3})-?([0-9]{2})-?([0-9]{5})/;
	var num = value ? value : el.value;
	if (!pattern.test(num)) return "invalid";
	num = RegExp.$1 + RegExp.$2 + RegExp.$3;
	var cVal = 0;
	for (var i=0; i<8; i++) {
		var cKeyNum = parseInt(((_tmp = i % 3) == 0) ? 1 : ( _tmp  == 1 ) ? 3 : 7);
		cVal += (parseFloat(num.substring(i,i+1)) * cKeyNum) % 10;
	}
	var li_temp = parseFloat(num.substring(i,i+1)) * 5 + "0";
	cVal += parseFloat(li_temp.substring(0,1)) + parseFloat(li_temp.substring(1,2));
	return (parseInt(num.substring(9,10)) == 10-(cVal % 10)%10) ? true : "invalid";
}

FormChecker.prototype.func_isValidPhone = function(el,value) {
	var pattern = /^([0]{1}[0-9]{1,2})-?([1-9]{1}[0-9]{2,3})-?([0-9]{4})$/;
	var num = value ? value : el.value;
	if (pattern.exec(num)) {
		if(RegExp.$1 == "011" || RegExp.$1 == "016" || RegExp.$1 == "017" || RegExp.$1 == "018" || RegExp.$1 == "019") {
			if(!el.getAttribute("span"))
				el.value = RegExp.$1 + "-" + RegExp.$2 + "-" + RegExp.$3;
		}
		return true;
	} else {
		return "invalid";
	}
}

/**
* common prototype functions
*/
String.prototype.trim = function(str) {
	str = this != window ? this : str;
	return str.ltrim().rtrim();
}

String.prototype.ltrim = function(str) {
	str = this != window ? this : str;
	return str.replace(/^\s+/g,"");
}

String.prototype.rtrim = function(str) {
	str = this != window ? this : str;
	return str.replace(/\s+$/g,"");
}

String.prototype.bytes = function(str) {
	var len = 0;
	str = this != window ? this : str;
	for (j=0; j<str.length; j++) {
		var chr = str.charAt(j);
		len += (chr.charCodeAt() > 128) ? 2 : 1;
	}
	return len;
}