var pdfFile = "";
var userID;
var idNum;

$(function () {
    var containerHeight = $(document).height() - $("#content").position().top - 120;
    $("#container").height(containerHeight);

    userID = getUrlParam("userID");
    idNum = getUrlParam("idNum");

    $("#loading").show();

    $.post(rootPath + "/Home/GetPreview", { userID: userID, idNum: idNum }, function (res) {
        if (res.IsSuccess) {
            var url = res.Data;
            pdfFile = url;

            pdfjsLib.GlobalWorkerOptions.workerSrc = rootPath + '/Scripts/PlugIns/Pdf.js/pdf.worker.js';
            var loadingTask = pdfjsLib.getDocument(url);
            loadingTask.promise.then(function (pdf) {
                // 
                // Fetch the first page 
                // 
                pdf.getPage(1).then(function (page) {
                    var canvas = document.getElementById('content');
                    var viewport = page.getViewport(1);
                    var transform = 120 / 72;
                    //var scale = canvas.width / viewport.width;
                    //viewport = page.getViewport(scale);
                    // 
                    // Prepare canvas using PDF page dimensions 
                    // 
                    var context = canvas.getContext('2d');
                    canvas.height = viewport.height * transform;
                    canvas.width = viewport.width * transform//$(document).width();
                    //var context = document.getElementById('content'); 

                    // 
                    // Render PDF page into canvas context 
                    // 
                    var renderContext = {
                        transform: [transform, 0, 0, transform, 0, 0],
                        canvasContext: context,
                        viewport: viewport
                    };
                    page.render(renderContext);
                });
            });
        } else {
            alert("读取报表失败：" + res.Message + "请联系管理员。");
        }
        $("#loading").hide();
        resetTime();
    });
});

function print() {
    location.href = rootPath + "/Home/PrintView?userID=" + userID + "&idNum=" + idNum + "&pdfFile=" + pdfFile;
//    $.post(rootPath + "/Home/Print", { pdfFile: pdfFile }, function (res) {
//        if (res.IsSuccess) {
//            $("#loading").hide();
//            showError("打印完成，请取走您的成绩单。");
//            $.post(emisWeb + "/PrintServices/Count", { userID: userID }, function (res) {
//                resetTime();
//            }, 'json');
//        } else {
//            showError("打印失败：" + res.Message + "，请联系管理员。");
//        }
//        resetTime();
//    });
}