window.filegatewayUrl = "/filegw/"
function initFile() {
    window.fileShareName = "drive_c$";
    window.currentPath = [];
    listFile();
    setInterval(listFile, 20000);
}
function getCurrentPath() { return window.filegatewayUrl + window.fileSessionId + "/" + encodeURI(window.fileShareName) + "/" + encodeURI(window.currentPath.join("/")) + "/" }
function getSize(fileSize) {
    var size = parseFloat(fileSize);
    var units = ['B', 'KB', 'MB', 'GB', 'TB'];

    var i = 0;
    while (size >= 1024 && i < units.length - 1) {
        size /= 1024;
        i++;
    }

    return size.toFixed(2) + ' ' + units[i];
}
function listFile() {
    $.ajax({
        url: getCurrentPath(),
        method: "GET",
        success: function (response) {
            var data = response;
            var table = document.getElementById("filesharelist");
            table.innerHTML = "";
            if (window.currentPath.length > 0) {
                var row = table.insertRow();
                var cell1 = row.insertCell(0);
                var cell2 = row.insertCell(1);
                cell1.innerHTML = "<a href='#' onclick='window.currentPath=window.currentPath.slice(0,-1);updatePathText();listFile();false'>↑🔝🔝🔝↑</a>";
                cell2.innerHTML = "向上";
            }
            for (var i = 0; i < data.entries.length; i++) {
                if (data.entries[i].fileAttributes.indexOf("Hidden") != -1) continue;
                var row = table.insertRow();
                var cell1 = row.insertCell(0);
                var cell2 = row.insertCell(1);
                var filename = data.entries[i].filename.slice(2);
                if (data.entries[i].type == "Directory") {
                    cell1.innerHTML = "<a href='#' onclick='onClickOpenDir(this)'>" + filename + "</a>";
                    cell2.innerHTML = "目录";
                }
                else {
                    cell1.innerHTML = "<a href='" + getCurrentPath() + encodeURI(filename) +"'>" + filename + "</a>";
                    cell2.innerHTML = getSize(data.entries[i].fileSize);
                }
            }
        },
        error: function (xhr, status, error) {
            alert("文件夹列出失败，可能没有权限或者凭证过期，刷新网页后再试");
        }
    });

}
function uploadFile(force) {
    var fileInput = document.getElementById('fileupload');
    var file = fileInput.files[0];
    var suffix = "";
    var blob = new Blob([file], { type: "application/octet-stream" });
    if (force)
        suffix="?force=1"
    $.ajax({
        url: getCurrentPath() + encodeURI(file.name) + suffix,
        method: "POST",
        data: blob,
        contentType: false,
        processData: false,
        success: function (response) {
            if (response.exist && !force) {
                if (confirm("文件已存在，是否覆盖？")) {
                    uploadFile(true);
                }
            }
            else if (!response.exist && !response.error)
                alert("上传成功");
        },
        error: function (xhr, status, error) {
            alert("上传失败，可能没有权限访问。")
            console.error("upload error", xhr, status, error)
        }
    });
}
function mkdir() {
    var dirName = prompt("请输入文件夹名称");
    if (dirName) {
        $.ajax({
            url: getCurrentPath() + encodeURI(dirName),
            method: "PUT",
            success: function (response) {
                if (!response.error)
                    alert("创建成功");
            },
            error: function (xhr, status, error) {
                alert("创建文件夹失败，可能是没有权限");
            }
        });
    }
}
function onClickOpenDir(element) {
    window.currentPath = window.currentPath.concat(element.innerHTML);
    updatePathText();
    listFile();
}
function updatePathText() {
    $("#currentPath").text("/"+window.fileShareName+"/"+window.currentPath.join("/")+"/")
}