//==本JS是加载Lodop插件及CLodop服务的综合示例，可直接使用，建议看懂后融进自己页面程序==

var CreatedOKLodopObject, CLodopIsLocal, CLodopJsState;

//==判断是否需要CLodop(那些不支持插件的浏览器):==
function needCLodop() {
	try {
		var ua = navigator.userAgent;
		if (ua.match(/Windows\sPhone/i)) return true;
		if (ua.match(/iPhone|iPod|iPad/i)) return true;
		if (ua.match(/Android/i)) return true;
		if (ua.match(/Edge\D?\d+/i)) return true;

		var verTrident = ua.match(/Trident\D?\d+/i);
		var verIE = ua.match(/MSIE\D?\d+/i);
		var verOPR = ua.match(/OPR\D?\d+/i);
		var verFF = ua.match(/Firefox\D?\d+/i);
		var x64 = ua.match(/x64/i);
		if (!verTrident && !verIE && x64) return true;
		else if (verFF) {
			verFF = verFF[0].match(/\d+/);
			if (verFF[0] >= 41 || x64) return true;
		} else if (verOPR) {
			verOPR = verOPR[0].match(/\d+/);
			if (verOPR[0] >= 32) return true;
		} else if (!verTrident && !verIE) {
			var verChrome = ua.match(/Chrome\D?\d+/i);
			if (verChrome) {
				verChrome = verChrome[0].match(/\d+/);
				if (verChrome[0] >= 41) return true;
			}
		}
		return false;
	} catch (err) {
		return true;
	}
}

//==引用CLodop的主JS,用双端口8000和18000(以防其中一个被占):==
if (needCLodop()) {
	var head =
		document.head || document.getElementsByTagName('head')[0] || document.documentElement;

	var JS1 = document.createElement('script');
	JS1.src = 'http://localhost:8000/CLodopfuncs.js?priority=1';
	head.insertBefore(JS1, head.firstChild);

	var JS2 = document.createElement('script');
	JS2.src = 'http://localhost:18000/CLodopfuncs.js?priority=0';
	head.insertBefore(JS2, head.firstChild);

	CLodopIsLocal = !!(JS1.src + JS2.src).match(/\/\/localho|\/\/127.0.0./i);

	if (JS1.attachEvent) {
		CLodopJsState = 'loading';
		var onChange = function() {
			if (window.event.srcElement.readyState == 'loaded') CLodopJsState = 'complete';
		};
		JS1.attachEvent('onreadystatechange', onChange);
		JS2.attachEvent('onreadystatechange', onChange);
	}
}

//==获取LODOP对象主过程,判断是否安装、需否升级:==
function getLodop(oOBJECT, oEMBED) {
	var strHtmInstall =
		"<br><font color='#FF00FF'>打印控件未安装!点击这里<a href='install_lodop32.exe' target='_self'>执行安装</a>,安装后请刷新页面或重新进入。</font>";
	var strHtmUpdate =
		"<br><font color='#FF00FF'>打印控件需要升级!点击这里<a href='install_lodop32.exe' target='_self'>执行升级</a>,升级后请重新进入。</font>";
	var strHtm64_Install =
		"<br><font color='#FF00FF'>打印控件未安装!点击这里<a href='install_lodop64.exe' target='_self'>执行安装</a>,安装后请刷新页面或重新进入。</font>";
	var strHtm64_Update =
		"<br><font color='#FF00FF'>打印控件需要升级!点击这里<a href='install_lodop64.exe' target='_self'>执行升级</a>,升级后请重新进入。</font>";
	var strHtmFireFox =
		"<br><br><font color='#FF00FF'>（注意：如曾安装过Lodop旧版附件npActiveXPLugin,请在【工具】->【附加组件】->【扩展】中先卸它）</font>";
	var strHtmChrome =
		"<br><br><font color='#FF00FF'>(如果此前正常，仅因浏览器升级或重安装而出问题，需重新执行以上安装）</font>";
	var strCLodopInstall_1 =
		"<br><font color='#FF00FF'>Web打印服务CLodop未安装启动，点击这里<a href='https://api.pt.huaml.com/soft/CLodop_Setup_for_Win32NT.exe' target='_self'>下载执行安装</a>";
	var strCLodopInstall_2 =
		"<br>（若此前已安装过，可<a href='CLodop.protocol:setup' target='_self'>点这里直接再次启动</a>）";
	var strCLodopInstall_3 = '，成功后请刷新本页面。</font>';
	var strCLodopUpdate =
		"<br><font color='#FF00FF'>Web打印服务CLodop需升级!点击这里<a href='CLodop_Setup_for_Win32NT.exe' target='_self'>执行升级</a>,升级后请刷新页面。</font>";
	var LODOP;
	try {
		var ua = navigator.userAgent;
		var isIE = !!ua.match(/MSIE/i) || !!ua.match(/Trident/i);
		if (needCLodop()) {
			try {
				LODOP = getCLodop();
			} catch (err) {}
			if (
				!LODOP &&
				(document.readyState !== 'complete' || (isIE && CLodopJsState == 'loading'))
			) {
				alert('网页还没下载完毕，请稍等一下再操作.');
				return;
			}
			if (!LODOP) {
				document.body.innerHTML =
					strCLodopInstall_1 +
					(CLodopIsLocal ? strCLodopInstall_2 : '') +
					strCLodopInstall_3 +
					document.body.innerHTML;
				return;
			} else {
				if (CLODOP.CVERSION < '3.0.9.3') {
					document.body.innerHTML = strCLodopUpdate + document.body.innerHTML;
				}
				if (oEMBED && oEMBED.parentNode) oEMBED.parentNode.removeChild(oEMBED);
				if (oOBJECT && oOBJECT.parentNode) oOBJECT.parentNode.removeChild(oOBJECT);
			}
		} else {
			var is64IE = isIE && !!ua.match(/x64/i);
			//==如果页面有Lodop就直接使用,否则新建:==
			if (oOBJECT || oEMBED) {
				if (isIE) LODOP = oOBJECT;
				else LODOP = oEMBED;
			} else if (!CreatedOKLodopObject) {
				LODOP = document.createElement('object');
				LODOP.setAttribute('width', 0);
				LODOP.setAttribute('height', 0);
				LODOP.setAttribute(
					'style',
					'position:absolute;left:0px;top:-100px;width:0px;height:0px;'
				);
				if (isIE)
					LODOP.setAttribute('classid', 'clsid:2105C259-1E0C-4534-8141-A753534CB4CA');
				else LODOP.setAttribute('type', 'application/x-print-lodop');
				document.documentElement.appendChild(LODOP);
				CreatedOKLodopObject = LODOP;
			} else LODOP = CreatedOKLodopObject;
			//==Lodop插件未安装时提示下载地址:==
			if (!LODOP || !LODOP.VERSION) {
				if (ua.indexOf('Chrome') >= 0)
					document.body.innerHTML = strHtmChrome + document.body.innerHTML;
				if (ua.indexOf('Firefox') >= 0)
					document.body.innerHTML = strHtmFireFox + document.body.innerHTML;
				document.body.innerHTML =
					(is64IE ? strHtm64_Install : strHtmInstall) + document.body.innerHTML;
				return LODOP;
			}
		}
		if (LODOP.VERSION < '6.2.2.6') {
			if (!needCLodop())
				document.body.innerHTML =
					(is64IE ? strHtm64_Update : strHtmUpdate) + document.body.innerHTML;
		}
		//===如下空白位置适合调用统一功能(如注册语句、语言选择等):==

		//=======================================================
		return LODOP;
	} catch (err) {
		alert('getLodop出错:' + err);
	}
}

export { needCLodop, getLodop };