var cid
function isWeChat() {
    let ua = window.navigator.userAgent.toLowerCase();
    if (ua.match(/MicroMessenger/i) == "micromessenger") {
        return true;// 是微信浏览器
    } else {
        return false;// 不是
    }
}


//返回按钮绑定  页面滚动过度处理
function backCut() {
    $('.gameDetailPageContent').on('scroll', function (e) {
        let scrollTop = +e.target.scrollTop
        $('.backContent').css("background", `rgba(0, 0, 0, ${(Math.abs(scrollTop) / 20) > 0.4 ? 0.4 : Math.abs(scrollTop) / 20})`);
    })
    $('.backContent')[0].onclick = function () {
        window.location.href = '/game/index.html?&cid='+cid
    }
}



//微信下载提示
function weixinHint() {
    let isWeixin = isWeChat();

    if (isWeixin) {
        $('.weixinHint').show();
    }

    if (!isWeixin) {
        $('.weixinHint').hide();
    }
}

//微信提示点击关闭提示
function weixinHintBundClick() {
    $('.weixinHint')[0].onclick = function () {
        $('.weixinHint').hide();
    }
}



//图片预览
let previewImg = ''

//图片预览初始化
function imgViewInit() {

    previewImg = new Viewer(document.getElementById('viewer'), {
        url: 'data-original',
        movable: false,
        toolbar: false,
        title: false,

    });
}


//查看更多绑定预览
function moreView() {
    $('.moreCut')[0].onclick = function () {
        console.log(previewImg)
        if (previewImg) {

            //预览指定索引图片
            previewImg.view(0)
        }
    }
}



let imgTimer = ""
//开启自动播放
function openImgViewTimer() {
    let len = $('.navContent .nav_item').length
    if (!len) return;
    clearImgTimer();
    let index = $('.navContent .active').index() + 1
    imgTimer = setInterval(() => {
        if (index > len - 1) {
            index = 0
        }
        $('.navContent .nav_item').removeClass("active");
        $('.navContent .nav_item').eq(index).addClass('active')

        $('.swiperContent .swiperItem').removeClass('active')
        $('.swiperContent .swiperItem').eq(index).addClass('active')
        index++;
    }, 5000)
}


//清除计时器
function clearImgTimer() {
    clearInterval(imgTimer);
    imgTimer = ''
}


//图片切换
function navCutInit() {
    // 默认初始化
    if ($('.navContent .nav_item').length) {
        $('.navContent .nav_item').removeClass('active')
        $('.navContent .nav_item').eq(0).addClass('active')
    }
    if ($('.swiperContent .swiperItem').length) {
        $('.swiperContent .swiperItem').removeClass('active')
        $('.swiperContent .swiperItem').eq(0).addClass('active')
    }


    //右侧图片总数统计显示
    $('.moreCut span').text($('.navContent .nav_item').length)




    //切换增加
    $('.navContent .nav_item').click(function (e) {
        $('.navContent .nav_item').removeClass("active");
        $(this).addClass("active");

        //顶部展示同步
        $('.swiperContent .swiperItem').removeClass('active')
        $('.swiperContent .swiperItem').eq($(this).index()).addClass('active')
        openImgViewTimer();

    })

    console.log($('.navContent .active').index())

}








function init() {
    cid = getQueryString('cid')
    //微信浏览器提示开启
    weixinHint()
    //微信提示点击关闭
    weixinHintBundClick()
    //返回按钮
    backCut()


    // 图片预览初始化
    imgViewInit()
    //更多图片预览
    moreView()

    //图片切换
    navCutInit();

    //开启自动播放
    openImgViewTimer();


}
function getQueryString(name) {
    var reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i');
    var r = window.location.search.substr(1).match(reg);
    if (r != null) {
        return unescape(r[2]);
    }
    return null;
}


init()