const tool = {
	/* localStorage */
	data: {
		set(table, settings) {
			var _set = JSON.stringify(settings)
			return localStorage.setItem(table, _set);
		},
		get(table) {
			var data = localStorage.getItem(table);
			try {
				data = JSON.parse(data)
			} catch (err) {
				return null
			}
			return data;
		},
		remove(table) {
			return localStorage.removeItem(table);
		},
		clear() {
			return localStorage.clear();
		}
	},
	/* Fullscreen */
	screen(element){
		var isFull = !!(document.webkitIsFullScreen || document.mozFullScreen || document.msFullscreenElement || document.fullscreenElement);
		if(isFull){
			if(document.exitFullscreen) {
				document.exitFullscreen();
			}else if (document.msExitFullscreen) {
				document.msExitFullscreen();
			}else if (document.mozCancelFullScreen) {
				document.mozCancelFullScreen();
			}else if (document.webkitExitFullscreen) {
				document.webkitExitFullscreen();
			}
		}else{
			if(element.requestFullscreen) {
				element.requestFullscreen();
			}else if(element.msRequestFullscreen) {
				element.msRequestFullscreen();
			}else if(element.mozRequestFullScreen) {
				element.mozRequestFullScreen();
			}else if(element.webkitRequestFullscreen) {
				element.webkitRequestFullscreen();
			}
		}
	},
	/* 复制对象 */
	objCopy(obj){
		return JSON.parse(JSON.stringify(obj));
	},
	/* 日期格式化 */
	dateFormat(date, fmt='yyyy-MM-dd'){
		date = new Date(date)
		var o = {
			"M+" : date.getMonth()+1,                 //月份
			"d+" : date.getDate(),                    //日
			"h+" : date.getHours(),                   //小时
			"m+" : date.getMinutes(),                 //分
			"s+" : date.getSeconds(),                 //秒
			"q+" : Math.floor((date.getMonth()+3)/3), //季度
			"S"  : date.getMilliseconds()             //毫秒
		};
		if(/(y+)/.test(fmt)) {
			fmt=fmt.replace(RegExp.$1, (date.getFullYear()+"").substr(4 - RegExp.$1.length));
		}
		for(var k in o) {
			if(new RegExp("("+ k +")").test(fmt)){
				fmt = fmt.replace(RegExp.$1, (RegExp.$1.length==1) ? (o[k]) : (("00"+ o[k]).substr((""+ o[k]).length)));
			}
		}
		return fmt;
	}
}

export default tool