/**
 * 统一构造话柄的函数
 * @returns
 */
function pluploadCallbackFuncForCover() {
    return {
        FilesAdded: pluploadFuncFilesAddedForCover,
        UploadProgress: pluploadFuncUploadProgressForCover,
        FileUploaded: pluploadFuncFileUploadedForCover,
        UploadComplete: pluploadFuncUploadCompleteForCover,
        Error: pluploadFuncErrorForCover
    }
}

/**
 * 单个文件上传函数
 * @param string idName 标识
 * @param Object cbFuncObjs 回掉函数对象.
 * @returns
 */
function pluploadOneCover(idName, cbFuncObjs, type = 'image') {
    var isMulitSelection = false;   // 是否允许多选.
    var mimeTypes = pluploadSelectMime(type);  // 定义可选择的文件类型
    var multipartParams = {
        'upload_token': window._UPLOAD_TOKEN_, // 必写，通信token
        'receive_type': 'plupload',    // 必写. 接收响应格式.
        'ext_type': 'image',   // 必写. 后端允许的文件格式类型组，多个半角逗号分隔开.
        'module_id': "video",
        'related_id': GetQueryString('uid'),
        'max_width': "1024",
        'max_height': "2000"
    };
    var chunkMaxSizeKb = 10 * 1024; // 10M
    var uploadMaxSizeKb = 1000 * 1024;   //1000M
    return pluploadBase(idName, isMulitSelection, mimeTypes, multipartParams, chunkMaxSizeKb, uploadMaxSizeKb, true, cbFuncObjs);
}


/**
 * plupload选中文件后回调
 */
function pluploadFuncFilesAddedForCover(idName, up, files) {
    layui.use(['jquery', 'element', 'layer'], function () {
        let $ = layui.jquery;
        let element = layui.element;
        let layer = layui.layer;
        let previewId = 'pl_preview_' + idName;
        let file = files[0];
        pluploadPreviewImage(file, function (b64url) {
            $('#' + previewId).attr('src', b64url);
        });
        let progressId = 'pl_progress_' + idName;
        element.progress(progressId, '0%'); //进度条复位
        layer.msg('上传中', {icon: 16, time: 0, shade: 0.3, shadeClose: false});
    });
}

/**
 * plupload上传过程中回调
 */
function pluploadFuncUploadProgressForCover(idName, up, file) {
    layui.use(['jquery', 'element', 'layer'], function () {
        let $ = layui.jquery;
        let element = layui.element;
        let layer = layui.layer;
        // 隐藏按钮
        let btnId = 'pl_btn_select_' + idName;
        $('#' + btnId).hide();
        let progressId = 'pl_progress_' + idName;
        element.progress(progressId, file.percent + '%');
    });
}

/**
 * plupload单个文件上传完回调
 */
function pluploadFuncFileUploadedForCover(idName, up, file, info) {
    layui.use(['jquery', 'element', 'layer'], function () {
        let $ = layui.jquery;
        let element = layui.element;
        let layer = layui.layer;
        let previewId = 'pl_preview_' + idName;
        let obj = $.parseJSON(info.response);
        if (obj.hasOwnProperty('result')) {
            let result = obj.result;
            $('#' + idName).val(result.link_url);
            if (file.name.slice(-3) === 'ceb'){
                $('#' + previewId).attr('data-ceb-url', result.link_url);
                onceRender($('#' + previewId));
            }
        } else {
            if (obj.hasOwnProperty('error')) {
                let errorInfo = obj.error;
                let resultId = 'pl_result_' + idName;
                let hcode = '<span class="layui-font-red">[' + errorInfo.code + '错误信息]【' + file.name + '】' + errorInfo.message + '</span>';
                $('#' + resultId).html(hcode);
                let progressId = 'pl_progress_' + idName;
                element.progress(progressId, '0%'); //进度条复位
            }
        }
        // 显示按钮
        // let btnId = 'pl_btn_select_' + idName;
        // $('#' + btnId).show();
    });
}


/**
 * plupload所有文件上传完回调
 */
function pluploadFuncUploadCompleteForCover(idName, up, files) {
    layui.use(['jquery', 'element', 'layer'], function () {
        let $ = layui.jquery;
        let element = layui.element;
        let layer = layui.layer;
        let resultId = 'pl_result_' + idName;
        $('#' + resultId).empty();

        layer.close(layer.index);   // 关闭加载层，layer.index参数，自动找最新的层

        // 显示按钮
        let btnId = 'pl_btn_select_' + idName;
        $('#' + btnId).show();
    });
}


/**
 * plupload错误回调
 */
function pluploadFuncErrorForCover(idName, up, err) {
    layui.use(['jquery', 'element', 'layer'], function () {
        let $ = layui.jquery;
        let element = layui.element;
        let layer = layui.layer;
        // 显示按钮
        let btnId = 'pl_btn_select_' + idName;
        $('#' + btnId).show();
        let resultId = 'pl_result_' + idName;
        let hcode = '<span class="layui-font-red">[' + err.code + '错误信息]' + err.message + '</span>';
        $('#' + resultId).html(hcode);
        layer.close(layer.index);   // 关闭加载层，layer.index参数，自动找最新的层
    });
}