<!--
Copyright (C) 2019-2023 Nicola Murino

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, version 3.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
-->
{{template "base" .}}

{{define "title"}}{{.Title}}{{end}}

{{define "extra_css"}}
<link href="{{.StaticURL}}/vendor/datatables/dataTables.bootstrap4.min.css" rel="stylesheet">
<link href="{{.StaticURL}}/vendor/datatables/buttons.bootstrap4.min.css" rel="stylesheet">
<link href="{{.StaticURL}}/vendor/datatables/fixedHeader.bootstrap4.min.css" rel="stylesheet">
<link href="{{.StaticURL}}/vendor/datatables/responsive.bootstrap4.min.css" rel="stylesheet">
<link href="{{.StaticURL}}/vendor/datatables/dataTables.checkboxes.css" rel="stylesheet">
<link href="{{.StaticURL}}/vendor/filepond/filepond.min.css" rel="stylesheet" />
<style>
    div.dataTables_wrapper span.selected-info,
    div.dataTables_wrapper span.selected-item {
        margin-left: 0.5em;
    }
</style>
{{end}}

{{define "page_body"}}
<div class="card shadow my-4">
    <div class="card-header py-3">
        <h6 class="m-0 font-weight-bold"><a href="{{.FilesURL}}?path=%2F"><i class="fas fa-home"></i>&nbsp;Home</a>&nbsp;{{range .Paths}}{{if eq .Href ""}}/{{.DirName}}{{else}}<a href="{{.Href}}">/{{.DirName}}</a>{{end}}{{end}}</h6>
    </div>
    <div class="card-body">
        {{if .Error}}
        <div class="alert alert-warning alert-dismissible fade show" role="alert">
            {{.Error}}
            <button type="button" class="close" data-dismiss="alert" aria-label="Close">
                <span aria-hidden="true">&times;</span>
            </button>
        </div>
        {{end}}
        <div id="errorMsg" class="alert alert-warning fade show" style="display: none;" role="alert">
            <span id="errorTxt"></span>
            <button type="button" class="close" aria-label="Close" onclick="dismissErrorMsg();">
              <span aria-hidden="true">&times;</span>
            </button>
        </div>
        <script type="text/javascript">
            function dismissErrorMsg(){
                $('#errorMsg').hide();
            }
        </script>
        <div id="tableContainer" class="table-responsive">
            <table class="table table-hover nowrap" id="dataTable" width="100%" cellspacing="0">
                <thead>
                    <tr>
                        <th></th>
                        <th>Type</th>
                        <th>Name</th>
                        <th>Size</th>
                        <th>Last modified</th>
                    </tr>
                </thead>
            </table>
        </div>
    </div>
</div>
{{end}}
{{define "dialog"}}
<div class="modal fade" id="uploadFilesModal" tabindex="-1" role="dialog" aria-labelledby="uploadFilesModalLabel"
    aria-hidden="true">
    <div class="modal-dialog" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="uploadFilesModalLabel">
                    Upload one or more files
                </h5>
                <button class="close" type="button" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">&times;</span>
                </button>
            </div>
            <form id="upload_files_form" action="{{.FilesURL}}?path={{.CurrentDir}}" method="POST" enctype="multipart/form-data">
                 <div class="modal-body">
                    <div id="uploadErrorMsg" class="card mb-4 border-left-warning" style="display: none;">
                        <div id="uploadErrorTxt" class="card-body text-form-error"></div>
                    </div>
                    <input type="file" id="files_name" name="filenames" required multiple>
                </div>
                <div class="modal-footer">
                    <button class="btn btn-secondary" type="button" data-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-primary">Submit</button>
                </div>
            </form>
        </div>
    </div>
</div>
<div class="modal fade" id="spinnerModal" tabindex="-1" role="dialog" data-keyboard="false" data-backdrop="static">
    <div class="modal-dialog modal-dialog-centered justify-content-center" role="document">
        <span style="color: #333333;" class="fa fa-spinner fa-spin fa-3x"></span>
    </div>
</div>
{{end}}

{{define "extra_js"}}
<script src="{{.StaticURL}}/vendor/datatables/jquery.dataTables.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/dataTables.bootstrap4.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/dataTables.buttons.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/buttons.bootstrap4.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/dataTables.fixedHeader.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/dataTables.responsive.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/responsive.bootstrap4.min.js"></script>
<script src="{{.StaticURL}}/vendor/datatables/dataTables.checkboxes.min.js"></script>
<script src="{{.StaticURL}}/vendor/filepond/filepond.min.js"></script>
<script type="text/javascript">
    var spinnerDone = false;

    function shortenData(d, cutoff) {
        if ( typeof d !== 'string' ) {
			return d;
		}

		if ( d.length <= cutoff ) {
			return escapeHTML(d);
		}

        var shortened = d.substr(0, cutoff-1);
        return escapeHTML(shortened)+'&#8230;';
    }

    function getIconForFile(filename) {
        var extension = filename.slice((filename.lastIndexOf(".") - 1 >>> 0) + 2).toLowerCase();
        switch (extension) {
            case "doc":
            case "docx":
            case "odt":
            case "wps":
                return "far fa-file-word";
            case "ppt":
            case "pptx":
                return "far fa-file-powerpoint";
            case "xls":
            case "xlsx":
            case "ods":
                return "far fa-file-excel";
            case "pdf":
                return "far fa-file-pdf";
            case "webm":
            case "mkv":
            case "flv":
            case "vob":
            case "ogv":
            case "ogg":
            case "avi":
            case "ts":
            case "mov":
            case "wmv":
            case "asf":
            case "mpeg":
            case "mpv":
            case "3gp":
            case "mp4":
                return "far fa-file-video";
            case "jpeg":
            case "jpg":
            case "png":
            case "gif":
            case "webp":
            case "tiff":
            case "psd":
            case "bmp":
            case "svg":
            case "jp2":
                return "far fa-file-image";
            case "go":
            case "sh":
            case "bat":
            case "java":
            case "php":
            case "cs":
            case "asp":
            case "aspx":
            case "css":
            case "html":
            case "xhtml":
            case "htm":
            case "js":
            case "jsp":
            case "py":
            case "rb":
            case "cgi":
            case "c":
            case "cpp":
            case "h":
            case "hpp":
            case "kt":
            case "ktm":
            case "kts":
            case "swift":
            case "r":
                return "far fa-file-code";
            case "zip":
            case "zipx":
            case "7z":
            case "rar":
            case "tar":
            case "gz":
            case "bz2":
            case "zstd":
            case "zst":
            case "sz":
            case "lz":
            case "lz4":
            case "xz":
            case "jar":
                return "far fa-file-archive";
            case "txt":
            case "rtf":
            case "json":
            case "xml":
            case "yaml":
            case "toml":
            case "log":
            case "csv":
            case "ini":
            case "cfg":
                return "far fa-file-alt";
            default:
                return "far fa-file";
        }
    }

    function getNameFromMeta(meta) {
        return meta.split('_').slice(1).join('_');
    }

    const isDirectoryEntry = item => isEntry(item) && (getAsEntry(item) || {}).isDirectory;
    const isEntry = item => 'webkitGetAsEntry' in item;
    const getAsEntry = item => item.webkitGetAsEntry();

    $(document).ready(function () {
        $('#spinnerModal').on('shown.bs.modal', function () {
            if (spinnerDone){
                $('#spinnerModal').modal('hide');
            }
        });

        {{if gt .Scope 1}}
        FilePond.create(document.getElementById("files_name"),{
            allowMultiple: true,
            name: 'filenames',
            maxFiles: 30,
            credits: false,
            required: true,
            onwarning: function(error){
                if (error.code == 0){
                    $('#uploadErrorTxt').text('You can upload a maximum of 30 files');
                    $('#uploadErrorMsg').show();
                    setTimeout(function () {
                        $('#uploadErrorMsg').hide();
                        }, 10000);
                }
            },
            beforeAddFile: (fileItem) => new Promise(resolve => {
                let num = 0;
                FilePond.find(document.getElementById("files_name")).getFiles().forEach(function(val){
                    if (val.filename == fileItem.filename){
                        num++;
                    }
                });
                resolve(num == 1);
            })
        });

        $('#tableContainer').on("dragover", function(ev){
            ev.preventDefault();
            $('#tableContainer').css('opacity','0.5');
        });

        $('#tableContainer').on("dragend dragleave", function(ev){
            ev.preventDefault();
            $('#tableContainer').css('opacity','1');
        });

        $('#tableContainer').on("drop", function(ev){
            ev.preventDefault();
            $('#tableContainer').css('opacity','1');
            let filesDropped = false;

            if (ev.originalEvent.dataTransfer.items) {
                [...ev.originalEvent.dataTransfer.items].forEach((item, i) => {
                    if (item.kind === 'file') {
                        // if this is a directory just open the upload dialog
                        if (!isDirectoryEntry(item)){
                            FilePond.find(document.getElementById("files_name")).addFile(item.getAsFile());
                            filesDropped = true;
                        }
                    }
                });
            } else {
                [...ev.originalEvent.dataTransfer.files].forEach((file, i) => {
                    FilePond.find(document.getElementById("files_name")).addFile(file);
                    filesDropped = true;
                });
            }

            if (filesDropped && !$('#uploadFilesModal').hasClass('show')){
                $('#uploadFilesModal').modal('show');
            }
        });
        {{end}}

        $("#upload_files_form").submit(function (event){
            event.preventDefault();
            let files = FilePond.find(document.getElementById("files_name")).getFiles();
            let has_errors = false;
            let index = 0;
            let success = 0;
            spinnerDone = false;

            $('#uploadFilesModal').modal('hide');
            $('#spinnerModal').modal('show');
            $('#errorMsg').hide();

            function uploadFile() {
                if (index >= files.length || has_errors){
                    $('#spinnerModal').modal('hide');
                    spinnerDone = true;
                    if (!has_errors){
                        location.reload();
                    }
                    return;
                }

                async function saveFile() {
                    let errorMessage = "Error uploading files";
                    let response;
                    try {
                        let f = files[index].file;
                        let uploadPath = '{{.UploadBaseURL}}'+fixedEncodeURIComponent("/"+escapeHTML(f.name));
                        let lastModified;
                        try {
                            lastModified = f.lastModified;
                        } catch (e) {
                            console.log("unable to get last modified time from file: "+e.message);
                            lastModified = "";
                        }
                        response = await fetch(uploadPath, {
                            method: 'POST',
                            headers: {
                                'X-SFTPGO-MTIME': lastModified
                            },
                            credentials: 'same-origin',
                            redirect: 'error',
                            body: f
                        });
                    } catch (e){
                        throw Error(errorMessage+": " +e.message);
                    }
                    if (response.status == 201){
                        index++;
                        success++;
                        uploadFile();
                    } else {
                        let jsonResponse;
                        try {
                            jsonResponse = await response.json();
                        } catch(e){
                            throw Error(errorMessage);
                        }
                        if (jsonResponse.message) {
                            errorMessage = jsonResponse.message;
                        }
                        if (jsonResponse.error) {
                            errorMessage += ": " + jsonResponse.error;
                        }
                        throw Error(errorMessage);
                    }
                }

                saveFile().catch(function(error){
                    index++;
                    has_errors = true;
                    $('#errorTxt').text(error.message);
                    $('#errorMsg').show();
                    uploadFile();
                });
            }

            uploadFile();
        });

        $.fn.dataTable.ext.buttons.refresh = {
            text: '<i class="fas fa-sync-alt"></i>',
            name: 'refresh',
            titleAttr: "Refresh",
            action: function (e, dt, node, config) {
                location.reload();
            }
        };

        $.fn.dataTable.ext.buttons.download = {
            text: '<i class="fas fa-download"></i>',
            name: 'download',
            titleAttr: "Download zip",
            action: function (e, dt, node, config) {
                var filesArray = [];
                var selected = dt.column(0).checkboxes.selected();
                for (i = 0; i < selected.length; i++) {
                    filesArray.push(getNameFromMeta(selected[i]));
                }
                var files = encodeURIComponent(JSON.stringify(filesArray));
                var downloadURL = '{{.DownloadURL}}';
                var currentDir = '{{.CurrentDir}}';
                var ts = new Date().getTime().toString();
                window.open(`${downloadURL}?path=${currentDir}&files=${files}&_=${ts}`);
            },
            enabled: false
        };

        $.fn.dataTable.ext.buttons.addFiles = {
            text: '<i class="fas fa-file-upload"></i>',
            name: 'addFiles',
            titleAttr: "Upload files",
            action: function (e, dt, node, config) {
                //FilePond.find(document.getElementById("files_name")).removeFiles();
                $('#uploadFilesModal').modal('show');
            },
            enabled: true
        };

        let table = $('#dataTable').DataTable({
            "ajax": {
                "url": "{{.DirsURL}}?path={{.CurrentDir}}",
                "dataSrc": "",
                "error": function ($xhr, textStatus, errorThrown) {
                    $(".dataTables_processing").hide();
                    let txt = "Failed to get directory listing";
                    if ($xhr) {
                        let json = $xhr.responseJSON;
                        if (json) {
                            if (json.message){
                                txt += ": " + json.message;
                            } else {
                                txt += ": " + json.error;
                            }
                        }
                    }
                    $('#errorTxt').text(txt);
                    $('#errorMsg').show();
                }
            },
            "deferRender": true,
            "processing": true,
            "lengthMenu": [ 10, 25, 50, 100, 250, 500 ],
            "stateSave": true,
            "stateDuration": 0,
            "stateSaveParams": function (settings, data) {
                data.sftpgo_dir = '{{.CurrentDir}}';
            },
            "stateLoadParams": function (settings, data) {
                if (!data.sftpgo_dir || data.sftpgo_dir != '{{.CurrentDir}}'){
                    data.start = 0;
                    data.search.search = "";
                }
                data.checkboxes = [];
            },
            "columns": [
                { "data": "meta" },
                { "data": "type" },
                {
                    "data": "name",
                    "render": function (data, type, row) {
                        if (type === 'display') {
                            var title = "";
                            var cssClass = "";
                            var shortened = shortenData(data, 70);
                            data = escapeHTML(data);
                            if (shortened != data){
                                title = escapeHTML(data);
                                cssClass = "ellipsis";
                            }

                            if (row["type"] == "1") {
                                return `<i class="fas fa-folder"></i>&nbsp;<a class="${cssClass}" href="${row['url']}" title="${title}">${shortened}</a>`;
                            }
                            if (row["size"] === "") {
                                return `<i class="fas fa-external-link-alt"></i>&nbsp;<a class="${cssClass}" href="${row['url']}" title="${title}">${shortened}</a>`;
                            }
                            var icon = getIconForFile(data);
                            return `<i class="${icon}"></i>&nbsp;<a class="${cssClass}" href="${row['url']}" title="${title}">${shortened}</a>`;
                        }
                        return data;
                    }
                },
                {
                    "data": "size",
                    "render": function (data, type, row) {
                        if (type === 'display') {
                            if (data || data === 0){
                                return fileSizeIEC(data);
                            }
                            return "";
                        }
                        return data;
                    }
                },
                { "data": "last_modified" }
            ],
            "buttons": [],
            "lengthChange": true,
            "columnDefs": [
                {
                    "targets": [0],
                    "checkboxes": {
                        "selectCallback": function (nodes, selected) {
                            var selectedItems = table.column(0).checkboxes.selected().length;
                            var selectedText = "";
                            if (selectedItems == 1) {
                                selectedText = "1 item selected";
                            } else if (selectedItems > 1) {
                                selectedText = `${selectedItems} items selected`;
                            }
                            table.button('download:name').enable(selectedItems > 0);
                            $('#dataTable_info').find('span').remove();
                            $("#dataTable_info").append('<span class="selected-info"><span class="selected-item">' + selectedText + '</span></span>');
                        }
                    },
                    "orderable": false,
                    "searchable": false
                },
                {
                    "targets": [1],
                    "visible": false,
                    "searchable": false
                },
                {
                    "targets": [3, 4],
                    "searchable": false
                }
            ],
            "scrollX": false,
            "scrollY": false,
            "responsive": true,
            "language": {
                "loadingRecords": "",
                "emptyTable": "No files or folders"
            },
            "initComplete": function (settings, json) {
                table.button().add(0, 'refresh');
                //table.button().add(0, 'pageLength');
                table.button().add(0, 'download');
                {{if gt .Scope 1}}
                table.button().add(0, 'addFiles');
                {{end}}
                table.buttons().container().appendTo('.col-md-6:eq(0)', table.table().container());
            },
            "orderFixed": [1, 'asc'],
            "order": [2, 'asc']
        });

        new $.fn.dataTable.FixedHeader(table);
        $.fn.dataTable.ext.errMode = 'none';
    });
</script>
{{end}}