$(function(){
    let n = getN()
    if(n.u){
        getFileObj(n.u,function(obj){
            $(".name").html(obj.title)
            $(".size").html(obj.size)
            $(".btn").attr("data-url",obj.fileUrl).attr("data-name",obj.title)
        })
    }else if(n.file){
        let fileName = n.fileName || "未知文件名"
        fileName = decodeURIComponent(fileName)
        $(".name").html(fileName)
        $(".size").hide()
        $(".btn").attr("data-url",n.file).attr("data-name",fileName)
    }else{
        $(".name").html("无法识别文件")
        $(".size").hide()
        $(".btn").hide()
    }
    $("body").on("click",".btn",function(){
        let url = $(this).attr("data-url")
        let name = $(this).attr("data-name")
        if(url){
            fileDownloadFun(url,name,true)
        }
    })
})
function getFileObj(u,callback){
    let url = "/nportal/fwebapi/cms/lowcode/file/getFileById?id="+u
    timedGetText(url,function(res){
        res = JSON.parse(res)
        let fileObj = res.data.data
        if(fileObj){
            $require(["pl_util"], function () {
                fileObj.fileUrl = $.handleDataFile(fileObj.fileUrl)
                callback(fileObj)
            })
        }else{
            $(".name").html("无法识别文件")
            $(".btn").hide()
        }
    })
}
function timedGetText( url, callback ){
    var request = new XMLHttpRequest();
    request.open( "GET", url ,false);
    request.send( null );
    if(request.status===200){
        callback( request.responseText );
    } 
}
function getSearch(){
    let theRequest = new Object();
    let wholeUrl = decodeURIComponent(location.href)
    let cArr = wholeUrl.match(/c-.*?\.html/)
    if(cArr){
        let cc = cArr[0].substr(2)
        cc = cc.substring(0,cc.length-5)
        let ccs = cc.split("&")
        for (let i = 0; i < ccs.length; i++) {
			theRequest[ccs[i].split("=")[0]] = unescape(ccs[i].split("=")[1]);
		}
    }
    let url = decodeURI(location.search);
	if (url.indexOf("?") != -1) {
		let str = url.substr(1);
		let strs = str.split("&");
		for (let i = 0; i < strs.length; i++) {
			theRequest[strs[i].split("=")[0]] = unescape(strs[i].split("=")[1]);
		}
	}
	return theRequest
}
function getN(){
    let n = {
        file:"",
        u:"",
        fileName:""
    }
    let params = getSearch()
    if(!params.u && !params.file){
        let path = location.pathname
        path = location.pathname.replace("/npublic","")
        let arr = path.split("/")
        if(arr[2]=='h'){
            //file类型
            n.file = decodeURIComponent(arr[3])
            let farr = n.file.split("?")[0].split("/")
            n.fileName = farr[farr.length-1]
        }else{
            //u类型
            n.u = arr[2]
            n.fileName = arr[3]=='0.pdf'?"":arr[3]
        }
    }else if(params.u){
        n.u = params.u
        n.fileName = params.fileName
    }else if(params.file){
        n.file = params.file
    }
    return n
}
//截取地址中domain
function getDomain(file){
    let domain = file.split("//")[1].split("/")[0]
    var domainArr = domain.split(".");
    var preDomain=domainArr[domainArr.length - 2] + "." + domainArr[domainArr.length - 1];
    if(/(com|cn|org|net|xin|edu|ac)\..*/.test(preDomain)){
        preDomain=domainArr[domainArr.length - 3]+"."+domainArr[domainArr.length - 2] + "." + domainArr[domainArr.length - 1];
    }
    return preDomain
}
//文件下载方法
function fileDownloadFun(url,name,key){
    if(!url){
        return
    }
    let allowArr = ['site.cn','thefastfile.com','thefastvideo.com','thefastimg.com','yun300.cn','faststatics.com']
    allowArr.push(getDomain(location.href))
    if((/^http/.test(url) && allowArr.indexOf(getDomain(url))==-1) || /^ftp/.test(url)){
        console.log("非法文件")
        return
    }
    var a = document.createElement("a")
    if(key){
        url = decodeURIComponent(decodeURIComponent(url))
        let pp=""
        if(url.indexOf('?')>-1){
            let fa = url.split("?")
            url = fa[0]
            pp = fa[1]
        }
        let urlArr = url.split("/")
		urlArr[urlArr.length-1]=encodeURIComponent(urlArr[urlArr.length-1])
		let turl = urlArr.join("/")
        if(pp){ 
            turl = turl+"?"+pp
        }
        if(/^http:/.test(turl)){
            turl = turl.replace(/^http:/,"https:")
        }
        let nurl = `/downfilebizce/get?n=${encodeURIComponent(turl)}`
        a.href = nurl
    }else{
        a.download = name // 设置下载文件名
        a.href = url
    }
    a.target = "_blank"
    document.body.appendChild(a)
    a.click()
    document.body.removeChild(a) //释放标签
}