/*************************************************************************************
程式功能		:	表單驗證
建置日期		:	2011-06-02
版本			:	1.0
版權所有		:	尚峪資訊科技有限公司 http://www.shang-yu.com.tw
--------------------------------------------------------------------------------------
表單元件驗證參數(fun)
checkNull			:	驗證空白
checkNum			:	驗證數字
checkNumNull		:	驗證數字必填
checkEnNum			:	驗證英文數字
checkEnNumNull		:	驗證英文數字必填
checkPersonID		:	驗證身份證字號
checkPersonIDNull	:	驗證身份證字號必填
checkEmail			:	驗證電子信箱
checkEmailNull		:	驗證電子信箱必填
checkItems			:	驗證核選方塊及選項方塊
checkSame			:	驗證和checkSame欄位的值是否相同
checkSameNull		:	驗證和checkSame欄位的值是否相同必填
checkExt			:	驗證上傳格式(屬性ext="jpg,xls....")
*************************************************************************************/
(function ($){
	jQuery.fn.extend ({	
		form_check: function(option){
			return this.each(function(){			
				var settings = {};
				$.extend(settings, option);
				
				//綁定事件-送出表單
				$(this).submit(function(){
					var $_this = $(this);
					
					var start_check = (function(){
						var message = "";						
												
						//驗證工具						
						var check_tools = {
							checkNull		:	function($this){	//驗證空白
								if($this.val() == ''){
									return $this.attr('des') + " - 必填\n";	
								}
								return "";
							},
							checkNum		:	function($this){	//驗證數字
								var number = "0123456789";
								var string;	
								for(var i = 0;i <= $this.val().length - 1;i++) {
									string = $this.val().substring(i,i + 1);
									if(number.indexOf(string) == -1) {
										return $this.attr('des') + " - 只能輸入0~9的數字\n";
									}
								}
								return "";
							},
							checkNumNull	:	function($this){	//驗證數字必填
								//驗證空白
								var msg = check_tools.checkNull($this);
								if(msg)return msg;
								
								var number = "0123456789";
								var string;	
								for(var i = 0;i <= $this.val().length - 1;i++) {
									string = $this.val().substring(i,i + 1);
									if(number.indexOf(string) == -1) {
										return $this.attr('des') + " - 只能輸入0~9的數字\n";
									}
								}
								return "";
							},
							checkEnNum		:	function($this){	//驗證英文數字
								var number = "00123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-";
								var string;	
								for(var i = 0;i <= $this.val().length - 1;i++) {
									string = $this.val().substring(i,i + 1);
									if(number.indexOf(string) == -1) {
										return $this.attr("des") + " - 只能輸入數字、大小寫英文字母及-符號\n";
									}
								}
								return "";
							}, 
							checkEnNumNull	:	function($this){	//驗證英文數字必填	
								//驗證空白
								var msg = check_tools.checkNull($this);
								if(msg)return msg;
								
								var number = "00123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-";
								var string;	
								for(var i = 0;i <= $this.val().length - 1;i++) {
									string = $this.val().substring(i,i + 1);
									if(number.indexOf(string) == -1) {
										return $this.attr("des") + " - 只能輸入數字、大小寫英文字母及-符號\n";
									}
								}
								return "";
							}, 
							checkPersonID	:	function($this){	//驗證身份證字號
								if($this.val()){
									var c, n, i;
									var t = "ABCDEFGHJKLMNPQRSTUVXYWZIO";
									c = $this.val().substring(0,1);
									c = t.indexOf(c.toUpperCase());
									if (($this.val().length != 10) || (c < 0)) {
										return $this.attr('des') + " - 身份證號格式不正確\n";
									}
									n = parseInt(c/10) + c%10*9 + 1;
									for (i = 1; i<9; i++) n = n + parseInt($this.val().substring(i, i+1)) * (9-i);
									n = (10 - (n % 10)) % 10;
									if (n != parseInt($this.val().substring(9, 10))) {
										return $this.attr('des') + " - 身份證號格式不正確\n";
									}
								}
								return "";
							},
							checkPersonIDNull	:	function($this){	//驗證身份證字號必填	
								//驗證空白
								var msg = check_tools.checkNull($this);
								if(msg)return msg;
								
								var c, n, i;
								var t = "ABCDEFGHJKLMNPQRSTUVXYWZIO";
								c = $this.val().substring(0,1);
								c = t.indexOf(c.toUpperCase());
								if (($this.val().length != 10) || (c < 0)) {
									return $this.attr('des') + " - 身份證號格式不正確\n";
								}
								n = parseInt(c/10) + c%10*9 + 1;
								for (i = 1; i<9; i++) n = n + parseInt($this.val().substring(i, i+1)) * (9-i);
								n = (10 - (n % 10)) % 10;
								if (n != parseInt($this.val().substring(9, 10))) {
									return $this.attr('des') + " - 身份證號格式不正確\n";
								}						
								return "";
							},
							checkEmail		:	function($this){	//驗證電子信箱
								var str_pos = $this.val().indexOf("@");
								var str_pos1 = $this.val().indexOf(".");
								var str_len = $this.val().length;
								if(str_len <= 0) {
									return "";
								}
								var chk_str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_";
								if(str_pos != -1 && str_pos1 != -1) {
									for(var i= 0;i <= str_pos - 1;i++) {
										if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
											return $this.attr('des') + " - 格式錯誤\n";
										}
									}
									for(var i= str_pos + 1;i <= $this.val().length - 1;i++) {
										if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
											return $this.attr('des') + " - 格式錯誤\n";
										}
									}
									return "";
								}
								return $this.attr('des') + " - 格式錯誤\n";
							},
							checkEmailNull	:	function($this){	//驗證電子信箱必填
								//驗證空白
								var msg = check_tools.checkNull($this);
								if(msg)return msg;
								
								var str_pos = $this.val().indexOf("@");
								var str_pos1 = $this.val().indexOf(".");
								var str_len = $this.val().length;
								if(str_len <= 0) {
									return "";
								}
								var chk_str = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.-_";
								if(str_pos != -1 && str_pos1 != -1) {
									for(var i= 0;i <= str_pos - 1;i++) {
										if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
											return $this.attr('des') + " - 格式錯誤\n";
										}
									}
									for(var i= str_pos + 1;i <= $this.val().length - 1;i++) {
										if(chk_str.indexOf($this.val().substring(i,i+1)) == -1) {
											return $this.attr('des') + " - 格式錯誤\n";
										}
									}
									return "";
								}
								return $this.attr('des') + " - 格式錯誤\n";
							},
							checkItems		:	function($this){	//驗證核選方塊及選項方塊
								if($_this.find("[name=" + $this.attr('name') + "]:checked").size() == 0){
									return $this.attr('des') + " - 至少點選一個\n";		
								}
								return "";
							},
							checkSame		:	function($this){
								var msg = "";
								$_this.find("[checkSame = 'true']").each(function(){
									if($this.val() != $(this).val()){
										msg = $this.attr('des') + " - 與" + $(this).attr('des') + "的值不相同\n";	
									}
								});
								if(msg)return msg;
								return "";
							},
							checkSameNull	:	function($this){
								//驗證空白
								var msg = check_tools.checkNull($this);
								if(msg)return msg;
								
								$_this.find("[checkSame = 'true']").each(function(){
									if($this.val() != $(this).val()){
										msg = $this.attr('des') + " - 與" + $(this).attr('des') + "的值不相同\n";	
									}
								});
								if(msg)return msg;
								return "";
							},
							checkExt		:	function($this){
								if($this.val() && $this.attr('ext')){
									var msg = "";
									var ext = $this.attr('ext');
									var val = $this.val().split(".")[$this.val().split(".").length - 1];
									var ext_arr = ext.split(",");
									for(k in ext_arr){
										if(ext_arr[k] == val){
											var chk = true;
											break;	
										}
									}
									if(!chk)msg = $this.attr('des') + '檔案類型限定：' + ext + "格式\n";
								}																	
								if(msg)return msg;
								return "";
							},
							checkExtNull	:	function($this){
								var msg = check_tools.checkNull($this);
								if($this.val() && $this.attr('ext')){
									var ext = $this.attr('ext');
									var val = $this.val().split(".")[$this.val().split(".").length - 1];
									var ext_arr = ext.split(",");
									for(k in ext_arr){
										if(ext_arr[k] == val){
											var chk = true;
											break;	
										}
									}
									if(!chk)msg = $this.attr('des') + '檔案類型只能是' + ext;
								}																	
								if(msg)return msg;
								return "";
							}
						}
						
						
						$_this.find("[fun]").each(function(){	
							message += check_tools[$(this).attr('fun')]($(this));
						});
						
						if(message){
							alert(message);
							return false;
						}
						else{
							return true;	
						}			
					})();
					
					return start_check;
				});		
			});
		}
	});
})(jQuery);