var ScrollBar = function(opts) {
	this.defaults = {
		'step': 0,
		'speed': 4,	// 滚动的速度
		'initData': [],
		'oldData':[],
		'newData': [],
		'lng': 10,	// 数据存储长度
		'times': 1000*60*30,	// 最新告警时间段
	};
	this.timer = null;
	
	this.opts = $.extend({}, this.defaults, opts);
	this.checkWidth();
	this.createScrollBar();
}

ScrollBar.prototype.startTimer = function () {
	var that = this;
	clearInterval(this.timer);
	this.timer = setInterval(function() {
		that.changeScrollBar();
	}, 100);
};

ScrollBar.prototype.stopTimer = function() {
	clearInterval(this.timer);
};

ScrollBar.prototype.changeScrollBar = function() {
	//console.info(this);
	var tab = $('.scroll-bar .scroll-content');
	var tab1 = $('.scroll-bar .scroll-content .list-one');
	var firstWidth = tab1.find('a').eq(0).width() - this.opts.speed + 26;
	if(tab.scrollLeft() >= firstWidth) {
		tab.scrollLeft(0);
		this.opts.step = 0;
		this.createScrollBar();
	}else {
		this.opts.step += this.opts.speed;
		tab.scrollLeft(this.opts.step);
	}
};
//  生成滚动块内容
ScrollBar.prototype.createScrollBar = function () {
	var tab = $('.scroll-bar .scroll-content')
	var tab1 = $('.scroll-bar .scroll-content .list-one');
	var aList = tab1.find('a');
	var aRemove = tab1.find('a').eq(0).next();
	tab1.find('a').eq(0).remove();
	var shiftWidth = tab1.width() - tab.width()-20;
	if(aRemove.width() < shiftWidth) {	// 容器内部内容达到规定值就不会添加数据
		return;
	}
	var $a = "";
	if(this.opts.newData.length> 0) {
		var newHData = this.opts.newData.splice(0, 1);
		$a = this.checkTime(newHData[0]); // 监测时间返回指定的字符串
		if(this.opts.oldData.length<this.opts.lng) {
			this.opts.oldData.push(newHData[0]);
		}else {
			this.opts.oldData.pop();
			this.opts.oldData.push(newHData[0]);
		}
		
	}else {
		if(this.opts.oldData != 0 && !aRemove.hasClass('no-content-scroll')) {
			var oldHdata = this.opts.oldData.shift();
			var dataJson = JSON.stringify(oldHdata);
			this.opts.oldData.push(oldHdata);
			$a = this.checkTime(oldHdata);	// 监测时间返回指定的字符串
		}
		
	}
	
	if($a != "") {
		tab1.append($a);
	}
	
	this.checkWidth();
};

// 检测容器内的长度是否足够的长，短就用空白块补齐
ScrollBar.prototype.checkWidth = function() {
	var tab = $('.scroll-bar .scroll-content')
	var tab1 = $('.scroll-bar .scroll-content .list-one');
	var aList = tab1.find('a');
	var realWidth = tab.width() + aList.eq(0).width()+20;
	if(realWidth > tab1.width()) {
		var $a = $('<a href="javascript:;" class="no-content-scroll"></a>');
		tab1.append($a);
		this.checkWidth();
	}
};

// 根据规定的时间返回特定的字符串
ScrollBar.prototype.checkTime = function(warnData) {
	var rs = "";
	var _nowDate = new Date();
	_nowDate = _nowDate.getTime();
	var warnDate = new Date(warnData.alm_start_time);
	
	var shiftTime = _nowDate - warnDate;
	
	if(shiftTime < this.opts.times) {	// 小于设置的时间段就是最新的告警
		if(warnData.num == 0) {
			rs = $('<a href="javascript:;" class="new ele-warn">'+warnData.note+'</a>');
			addAttrToEleWarn(rs, warnData);
		}else {
			rs = $('<a href="javascript:;" class="new equip-warn">'+warnData.note+'</a>');
			addAttrToEquipWarn(rs, warnData);
		}
	}else {
		if(warnData.num == 0) {
			rs = $('<a href="javascript:;" class="ele-warn">'+warnData.note+'</a>');
			addAttrToEleWarn(rs, warnData);
		}else {
			rs = $('<a href="javascript:;" class="equip-warn">'+warnData.note+'</a>');
			addAttrToEquipWarn(rs, warnData);
		}
	}
	
	return rs;
}



// 给电池告警添加属性
function addAttrToEleWarn(eleWarn, data) {
	eleWarn.attr('data-batt-group-id', data.BattGroupId);	// 电池组ID
	eleWarn.attr('data-alm-id', data.alm_id);	// 告警ID
	eleWarn.attr('data-alm-start-time', data.alm_start_time);	// 告警时间
	eleWarn.attr('data-mon-num', data.MonNum);	// 单体编号
}

// 给设备告警添加属性
function addAttrToEquipWarn(equipWarn, data) {
	equipWarn.attr('data-alm-id', data.alm_id);
	equipWarn.attr('data-alm-signal-id', data.alm_signal_id);
	equipWarn.attr('data-alm-start-time', data.alm_start_time);
}