## classes_table: str


<!-- Tab content -->
<div id="Classes" class="tabcontent">
  <div id="clas.actions" class="actions">
    <!-- Trigger/Open The Modal -->
    <button id="cls.myBtnReload" onclick="cls_update()">Reload</button>
    <button id="cls.myBtnImport" onclick="cls_myImport()">Import ...</button>
    <button id="cls.myBtnExport" onclick="cls_myExport()">Export ...</button>
    <button id="cls.myBtnAdd" onclick="cls_myAdd()">Add class ...</button>
    <button id="cls.myBtnEdit" disabled onclick="cls_myEdit()">Edit class ...</button>
    <button id="cls.myBtnDelete" disabled onclick="cls_myDelete()">Delete class</button>
  </div>

  <div id=cls.data class="data">
    ${classes_table | n}
  </div>

  <div class="modal" id="cls.importDialog">
    <!-- Modal content -->
    <div class="modal-content">
      <span class="close" onclick="document.getElementById('cls.importDialog').style.display='none'">&times;</span>
      <form id="cls.import.form" class="form-container" onsubmit="cls_submitImport(); return false;">
        <p>Format</p>
        <div>
          <input id="cls_radio_import_1" name="cls_import" type="radio" value="cls.import.1"
                 onchange="updateDisplayedParams('cls_import_1')" required checked/>
          <label for="cls_radio_import_1">IOF Interface Standard 3.0 Class List</label>
        </div>
        <p>Settings</p>
        <div id="cls_import">
          <div id="cls_import_1" class="params">
            <table>
              <tr>
                <th class="input-header"><label for="file1">File</label></th>
                <td><input id="file1" name="browse1" type="file" class="required" accept=".xml"/></td>
              </tr>
            </table>
          </div>
        </div>
        <p></p>
        <p></p>
        <button type="submit" class="btn">Import</button>
        <button type="button" class="btn cancel" onclick="document.getElementById('cls.importDialog').style.display='none'">Cancel</button>
      </form>
    </div>
  </div>

  <!-- The Modal -->
  <div class="modal" id="cls.exportDialog">
    <!-- Modal content -->
    <div class="modal-content">
      <span class="close" onclick="document.getElementById('cls.exportDialog').style.display='none'">&times;</span>
      <form id="cls.export.form" class="form-container" onsubmit="cls_submitExport(); return false;">
        <p>Format</p>
         <div>
          <input id="cls_radio_export_1" name="cls_export" type="radio" value="cls.export.1"
                 onchange="updateDisplayedParams('cls_export_1')" required checked/>
          <label for="cls_radio_export_1">IOF Interface Standard 3.0 Class List</label>
        </div>
        <p>Settings</p>
        <div id="cls_export">
          <div id="cls_export_1" class="params">
          </div>
        </div>
        <p></p>
        <p></p>
        <button type="submit" class="btn">Export</button>
        <button type="button" class="btn cancel" onclick="document.getElementById('cls.exportDialog').style.display='none'">Cancel</button>
      </form>
    </div>
  </div>

  <!-- The Modal -->
  <div class="modal" id="cls.addDialog">
  </div> 

  <!-- The Modal -->
  <div class="modal" id="cls.deleteDialog">
    <!-- Modal content -->
    <div class="modal-content">
      <span class="close" onclick="document.getElementById('cls.deleteDialog').style.display='none'">&times;</span>
      <form id="cls.formDelete" class="form-container" onsubmit="cls_submitDelete(); return false;">
        <input id="cls.deleteId" name="id" type="text" hidden/>
        <p>Confirm: Delete the selected class?</p>
        <button type="submit" class="btn">Delete</button>
        <button type="button" class="btn cancel" onclick="document.getElementById('cls.deleteDialog').style.display='none'">Cancel</button>
      </form>
    </div>
  </div>
</div>


<script>
    var cls_selected = document.getElementById('cls.table').getElementsByClassName('selected')[0];

    function cls_highlight(e) {
        if (e.target.tagName == "TD") {
            if (cls_selected) cls_selected.className = '';
            cls_selected = e.target.parentNode;
            cls_selected.className = 'selected';
            document.getElementById('cls.myBtnEdit').disabled = false;
            document.getElementById('cls.myBtnDelete').disabled = false;
            if (e.type == "dblclick") {
                cls_myEdit();
            }
        }
    }

    function cls_myImport() {
        document.getElementById('cls.importDialog').style.display = 'block';
        document.getElementById('cls_radio_import_1').checked = true;
        updateDisplayedParams("cls_import_1");
    }

    function cls_myExport() {
        document.getElementById('cls.exportDialog').style.display = 'block';
        document.getElementById('cls_radio_export_1').checked = true;
        updateDisplayedParams("cls_export_1");
    }

    function cls_myAdd() {
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                document.getElementById('cls.addDialog').innerHTML = this.responseText;
                document.getElementById('cls.addDialog').style.display='block';
                align_form_table('cls.addFormTable');
            }
            if (this.readyState == 4 && this.status == 409) {
                window.alert(this.responseText);
            }
            if (this.readyState == 4 && this.status == 500) {
                window.alert(this.responseText);
            }
        };
        xhr.onerror = function() {
            window.alert("Network error");
        };
        xhr.open("POST", "class/fill_edit_form", true);
        var data = new FormData();
        data.append('event_id', window.event_id);
        data.append('id', '');
        xhr.send(data);
    }

    function cls_myDelete() {
        var table = document.getElementById('cls.table');
        for (var i = 1; i < table.rows.length; i++) {
            if (table.rows[i].className == "selected") {
                document.getElementById('cls.deleteId').value=table.rows[i].dataset.id
                document.getElementById('cls.deleteDialog').style.display='block'
            }
        }
    }

    function cls_myEdit() {
        var table = document.getElementById('cls.table');
        for (var i = 1; i < table.rows.length; i++) {
            if (table.rows[i].className == "selected") { 
                var xhr = new XMLHttpRequest();
                xhr.onreadystatechange = function() {
                    if (this.readyState == 4 && this.status == 200) {
                        document.getElementById('cls.addDialog').innerHTML = this.responseText;
                        document.getElementById('cls.addDialog').style.display='block';
                        align_form_table('cls.addFormTable');
                    }
                    if (this.readyState == 4 && this.status == 409) {
                        window.alert(this.responseText);
                    }
                    if (this.readyState == 4 && this.status == 500) {
                        window.alert(this.responseText);
                    }
                };
                xhr.onerror = function() {
                    window.alert("Network error");
                };
                xhr.open("POST", "class/fill_edit_form", true);
                var data = new FormData();
                data.append('event_id', window.event_id);
                data.append('id', table.rows[i].dataset.id);
                xhr.send(data);
            }
        }
    }

    function cls_submitImport() {
        var form = document.getElementById('cls.import.form');
        var data = new FormData(form);
        data.append('event_id', window.event_id);
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                cls_updateTable(this.responseText)
            }
            if (this.readyState == 4 && this.status == 409) {
                window.alert(this.responseText);
            }
            if (this.readyState == 4 && this.status == 413) {
                window.alert(this.responseText);
            }
            if (this.readyState == 4 && this.status == 500) {
                window.alert(this.responseText);
            }
        };
        xhr.onerror = function() {
            window.alert("Network error");
        };
        xhr.open("POST", "class/import", true);
        xhr.send(data);
    }

    function cls_submitExport() {
        var filename = '';
        var form = document.getElementById('cls.export.form');
        var data = new FormData(form);
        data.append('event_id', window.event_id);
        var selected = document.querySelector('input[name="cls_export"]:checked').value;
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                download(filename, this.response, 'application/xml');
                document.getElementById('cls.exportDialog').style.display = "none";
            }
            if (this.readyState == 4 && this.status == 409) {
                window.alert(new TextDecoder().decode(this.response));
            }
            if (this.readyState == 4 && this.status == 500) {
                window.alert(new TextDecoder().decode(this.response));
            }
        };
        xhr.onerror = function() {
            window.alert("Network error");
        };
        xhr.open("POST", "class/export", true);
        xhr.responseType = "arraybuffer";
        if (selected == "cls.export.1") {
            filename = "ClassList.xml";
        }
        xhr.send(data);
    }

    function cls_submitAdd() {
        var form = document.getElementById('cls.formAdd');
        var data = new FormData(form);
        data.append('event_id', window.event_id);
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                cls_updateTable(this.responseText)
            }
            if (this.readyState == 4 && this.status == 409) {
                window.alert(this.responseText)
            }
            if (this.readyState == 4 && this.status == 500) {
                window.alert(this.responseText);
            }
        };
        xhr.onerror = function() {
            window.alert("Network error");
        };
        xhr.open("POST", "class/add", true);
        xhr.send(data);
    }

    function cls_submitDelete() {
        var form = document.getElementById('cls.formDelete');
        var data = new FormData(form);
        data.append('event_id', window.event_id);
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                cls_updateTable(this.responseText)
            }
            if (this.readyState == 4 && this.status == 409) {
                window.alert(this.responseText)
            }
            if (this.readyState == 4 && this.status == 500) {
                window.alert(this.responseText);
            }
        };
        xhr.onerror = function() {
            window.alert("Network error");
        };
        xhr.open("POST", "class/delete", true);
        xhr.send(data);
    }

    function cls_update() {
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                cls_updateTable(this.responseText)
            }
            if (this.readyState == 4 && this.status == 409) {
                window.alert(this.responseText);
                evnt_update();
                openTab(event, 'Events');
            }
            if (this.readyState == 4 && this.status == 500) {
                window.alert(this.responseText);
            }
        };
        xhr.onerror = function() {
            window.alert("Network error");
        };
        xhr.open("POST", "class/update", true);
        var data = new FormData();
        data.append('event_id', window.event_id);
        xhr.send(data);
    }

    function set_clas_table_header_top() {
        h = document.getElementById('clas.actions').offsetHeight;
        document.getElementById('clas.theader').style.top = h - 1;

    }

    new ResizeObserver(set_clas_table_header_top).observe(document.getElementById('clas.actions'));

    function cls_updateTable(content) {
        // Get all elements with class="modal" and hide them
        modal = document.getElementsByClassName("modal");
        for (i = 0; i < modal.length; i++) {
            modal[i].style.display = "none";
        }
        document.getElementById('cls.data').innerHTML = content;
        document.getElementById('cls.myBtnEdit').disabled = true;
        document.getElementById('cls.myBtnDelete').disabled = true;
        set_clas_table_header_top();
    }
</script>