function devicejudge() {
    /* 判断浏览器类型 */
    let useragent = navigator.useragent;
    /* android 终端 */
    let isandroid = useragent.indexof('android');
    /* ios终端 */
    let ios = (/(iphone|ipad|ipod|ios)/i.test(navigator.useragent))
    if (isandroid > -1) {
        return 'android';
    } else if (ios) {
        return 'ios';
    } else {
        return 'pc';
    }
}


function downloadstylereset() {
    const styles = `<style>
            .bottom-download-app-dom {
                clear:both;
                position:relative;
                display: block;
                width: 100%; 
                height: 55px;
            }
            .bottom-downloadapp {
                position: fixed;
                display: block;
                z-index: 2147483646;
                /*left: 12px;
                right: 12px;*/
                text-align: center;
                bottom: 0px;
                box-sizing: border-box;
            }
            
             .bottom-downloadapp-inner {
                display: inline-block;
                vertical-align: middle;
                width: 100%;
             }
             
             .bottom-downloadapp-a {
                margin: 0;
                padding: 0;
                border: 0;
                display: block;
                width: 100%;
                float: left;
                text-align: center;
                background-size: 100% auto !important;
                position: relative;
                background: url() rgba(0,0,0,0) no-repeat center;
             }
             
              .bottom-downloadapp-img {
                    width: 100%;
                    /*height: 52px;*/
                    object-fit: contain;
                    border: none !important;
              }
  </style>`;
    $('head').append(styles);
}

function todownapp(a) {
    downloadstylereset();
    let download_dom = `
    <div class="bottom-download-app-dom"></div>
    <div class="bottom-downloadapp">
        <div class="bottom-downloadapp-inner">
            <a onclick="open_play('`+a+`');return false" target="_blank" href="javascript:" class="bottom-downloadapp-a">
                <img src="/skins/images/dl.gif" class="bottom-downloadapp-img"/></a>
        </div>
    </div>`;
    $('body').append(download_dom);
}

function in_page_pic(a){
    let devicetype = devicejudge();
    if (devicetype === 'android' || devicetype === 'ios') {
        todownapp(a)
    }
}

// $(function() {
//     let devicetype = devicejudge();
//     if (devicetype === 'android' || devicetype === 'ios') {
//         todownapp()
//     }

// });


function open_play(a){
    random_str = generaterandomstring()
    var u = 'https://'+random_str+'.'+atob(a)
    window.open(u)
}


function generaterandomstring() {
    var chars = 'abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789';
    var result = '';
    for (var i = 0; i < 6; i++) {
      var randomindex = math.floor(math.random() * chars.length);
      result += chars.charat(randomindex);
    }
    return result;
  }