<!DOCTYPE html>
<html>
<head>
    <title>SeaweedFS Filer</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="/seaweedfsstatic/bootstrap/3.3.1/css/bootstrap.min.css">
    <style>
        body {
            padding-bottom: 128px;
        }

        #drop-area {
            border: 1px transparent;
            margin-top: 5px;
        }

        #drop-area.highlight {
            border-color: purple;
            border: 2px dashed #ccc;
        }

        .button {
            display: inline-block;
            padding: 2px;
            background: #ccc;
            cursor: pointer;
            border-radius: 2px;
            border: 1px solid #ccc;
            float: right;
            margin-left: 2px;
            margin-bottom: 0;
        }

        label {
            font-weight: normal;
        }

        .button:hover {
            background: #ddd;
        }

        #fileElem {
            display: none;
        }

        td, th {
            vertical-align: bottom;
        }

        .table-hover > tbody > tr:hover > * > div.operations {
            display: block;
        }

        .table > tbody > tr {
            height: 39px;
        }

        div.operations {
            display: none;
        }

        .footer {
            position: absolute;
            bottom: 0px;
            right: 5%;
            min-width: 25%;
            border-left: 1px solid #ccc;
            border-right: 1px solid #ccc;
        }

        .add-files {
            font-size: 46px;
            text-align: center;
            border: 1px dashed #999;
            padding-bottom: 9px;
            margin: 0 2px;
        }
    </style>
</head>
<body>
<div class="container">
    <div class="page-header">
        <h1>
            <a href="https://github.com/chrislusf/seaweedfs"><img src="/seaweedfsstatic/seaweed50x50.png"></img></a>
            SeaweedFS Filer
        </h1>
    </div>
    <div class="row">
        <div>
            <div class="btn-group btn-group-sm pull-right" role="group" style="margin-top:3px;">
                <label class="btn btn-default" onclick="handleCreateDir()">
                    <span class="glyphicon glyphicon-plus" aria-hidden="true"></span> New Folder
                </label>
                <label class="btn btn-default" for="fileElem">
                    <span class="glyphicon glyphicon-cloud-upload" aria-hidden="true"></span> Upload
                </label>
            </div>
            <ol class="breadcrumb">
            {{ range $entry := .Breadcrumbs }}
            <li><a href="{{ printpath $entry.Link }}">
                {{ $entry.Name }}
            </li></a>
            {{ end }}
            </ol>
        </div>
    </div>

    <div class="row" id="drop-area">
        <form class="upload-form">
            <input type="file" id="fileElem" multiple onchange="handleFiles(this.files)">

            {{ if .EmptyFolder }}
            <div class="row add-files">
                +
            </div>
            {{ else }}
            <table width="100%" class="table table-hover">
                {{ $path := .Path }}
                {{ $showDirDel := .ShowDirectoryDelete }}
                {{ range $entry_index, $entry := .Entries }}
                <tr>
                    <td>
                        {{ if $entry.IsDirectory }}
                        <span class="glyphicon glyphicon-folder-open" aria-hidden="true"></span>&nbsp;
                        <a href="{{ printpath $path  "/" $entry.Name "/"}}" >
                        {{ $entry.Name }}
                        </a>
                        {{ else }}
                        <a href="{{ printpath $path  "/" $entry.Name }}" >
                        {{ $entry.Name }}
                        </a>
                        {{ end }}
                    </td>
                    <td align="right" nowrap>
                        {{ if not $entry.IsDirectory }}
                        {{ $entry.Mime }}&nbsp;
                        {{ end }}
                    </td>
                    <td align="right" nowrap>
                        {{ if not $entry.IsDirectory }}
                        {{ $entry.Size | humanizeBytes }}&nbsp;
                        {{ end }}
                    </td>
                    <td align="right" nowrap>
                        {{ $entry.Timestamp.Format "2006-01-02 15:04" }}
                    </td>
                    <td style="width:75px">
                        <div class="btn-group btn-group-xs pull-right operations" role="group">
                            <label class="btn" onclick="handleRename('{{ $entry.Name }}', '{{ printpath $path "/" }}')">
                                <span class="glyphicon glyphicon-edit" aria-hidden="true"></span>
                            </label>
                            {{ if and $entry.IsDirectory $showDirDel }}
                            <label class="btn" onclick="handleDelete('{{ printpath $path  "/" $entry.Name "/" }}')">
                                <span class="glyphicon glyphicon-trash" aria-hidden="true"></span>
                            </label>
                            {{ end }}
                            {{ if not $entry.IsDirectory }}
                            <label class="btn" onclick="handleDelete('{{ printpath $path  "/" $entry.Name }}')">
                                <span class="glyphicon glyphicon-trash" aria-hidden="true"></span>
                            </label>
                            {{ end }}
                        </div>
                    </td>
                </tr>
                {{ end }}
            </table>
            {{ end }}
        </form>
    </div>

    {{ if .ShouldDisplayLoadMore }}
    <div class="row">
        <a href={{ print .Path "?limit=" .Limit "&lastFileName=" .LastFileName }} >
        Load more
        </a>
    </div>
    {{ end }}

    <br/>
    <br/>
    <div id="progress-area" class="footer" style="display: none;">
    </div>
</div>
</body>
<script type="text/javascript">
    // ************************ Drag and drop ***************** //
    let dropArea = document.getElementById("drop-area");
    let progressArea = document.getElementById("progress-area");

// Prevent default drag behaviors
    ;['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
        dropArea.addEventListener(eventName, preventDefaults, false);
        document.body.addEventListener(eventName, preventDefaults, false);
    });

// Highlight drop area when item is dragged over it
    ;['dragenter', 'dragover'].forEach(eventName => {
        dropArea.addEventListener(eventName, highlight, false);
    });

    ;['dragleave', 'drop'].forEach(eventName => {
        dropArea.addEventListener(eventName, unhighlight, false);
    });

    // Handle dropped files
    dropArea.addEventListener('drop', handleDrop, false);

    function preventDefaults(e) {
        e.preventDefault();
        e.stopPropagation();
    }

    function highlight(e) {
        dropArea.classList.add('highlight');
    }

    function unhighlight(e) {
        dropArea.classList.remove('highlight');
    }

    function handleDrop(e) {
        var dt = e.dataTransfer;
        var files = dt.files;

        handleFiles(files);
    }

    function reloadPage() {
        window.location.reload(true);
    }

    var uploadList = {};

    function handleFiles(files) {
        files = [...files];
        files.forEach(startUpload);
        renderProgress();
        files.forEach(uploadFile);
    }

    function startUpload(file, i) {
        uploadList[file.name] = {'name': file.name, 'percent': 0, 'finish': false};
    }

    function renderProgress() {
        var values = Object.values(uploadList);
        var html = '<table class="table">\n<tr><th>Uploading</th><\/tr>\n';
        for (let i of values) {
            var progressBarClass = 'progress-bar-striped active';
            if (i.percent >= 100) {
                progressBarClass = 'progress-bar-success';
            }
            html += '<tr>\n<td>\n';
            html += '<div class="progress" style="margin-bottom: 2px;">\n';
            html += '<div class="progress-bar ' + progressBarClass + '" role="progressbar" aria-valuenow="' + '100" aria-valuemin="0" aria-valuemax="100" style="width:' + i.percent + '%;">';
            html += '<span style="margin-right: 10px;">' + i.name + '</span>' + i.percent + '%<\/div>';
            html += '<\/div>\n<\/td>\n<\/tr>\n';
        }
        html += '<\/table>\n';
        progressArea.innerHTML = html;
        if (values.length > 0) {
            progressArea.attributes.style.value = '';
        }
    }

    function reportProgress(file, percent) {
        var item = uploadList[file]
        item.percent = percent;
        renderProgress();
    }

    function finishUpload(file) {
        uploadList[file]['finish'] = true;
        renderProgress();
        var allFinish = true;
        for (let i of Object.values(uploadList)) {
            if (!i.finish) {
                allFinish = false;
                break;
            }
        }
        if (allFinish) {
            console.log('All Finish');
            reloadPage();
        }
    }

    function uploadFile(file, i) {
        var url = window.location.href;
        var xhr = new XMLHttpRequest();
        var fileName = file.name;
        xhr.upload.addEventListener('progress', function(e) {
            if (e.lengthComputable) {
                var percent = Math.ceil((e.loaded / e.total) * 100);
                reportProgress(fileName, percent)
            }
        });
        xhr.upload.addEventListener('loadend', function(e) {
            finishUpload(fileName);
        });
        var formData = new FormData();
        xhr.open('POST', url, true);
        formData.append('file', file);
        xhr.send(formData);
    }

    function handleCreateDir() {
        var dirName = prompt('Folder Name:', '');
        dirName = dirName.trim();
        if (dirName == null || dirName == '') {
            return;
        }
        var baseUrl = window.location.href;
        if (!baseUrl.endsWith('/')) {
            baseUrl += '/';
        }
        var url = baseUrl + dirName;
        if (!url.endsWith('/')) {
            url += '/';
        }
        var xhr = new XMLHttpRequest();
        xhr.open('POST', url, false);
        xhr.setRequestHeader('Content-Type', '');
        xhr.send();
        reloadPage();
    }

    function handleRename(originName, basePath) {
        var newName = prompt('New Name:', originName);
        if (newName == null || newName == '') {
            return;
        }
        var url = basePath + newName;
        var originPath = basePath + originName;
        url += '?mv.from=' + originPath;
        var xhr = new XMLHttpRequest();
        xhr.open('POST', url, false);
        xhr.setRequestHeader('Content-Type', '');
        xhr.send();
        reloadPage();
    }

    function handleDelete(path) {
        if (!confirm('Are you sure to delete ' + path + '?')) {
            return;
        }
        var url = path;
        if (url.endsWith('/')) {
            url += '?recursive=true';
        }

        var xhr = new XMLHttpRequest();
        xhr.open('DELETE', url, false);
        xhr.send();
        reloadPage();
    }
</script>
</html>
