devices.php

<!--
#---------------------------------------------------------------------------------#
#  NetAlertX                                                                      #
#  Open Source Network Guard / WIFI & LAN intrusion detector                      #
#                                                                                 #
#  devices.php - Front module. Devices list page                                  #
#---------------------------------------------------------------------------------#
#    Puche      2021        pi.alert.application@gmail.com   GNU GPLv3            #
#    jokob-sk   2022        jokob.sk@gmail.com               GNU GPLv3            #
#    leiweibau  2022        https://github.com/leiweibau     GNU GPLv3            #
#    cvc90      2023        https://github.com/cvc90         GNU GPLv3            #
#---------------------------------------------------------------------------------#
-->

<?php

  require 'php/templates/header.php';

  // check permissions
  // Use environment-aware paths with fallback to legacy locations
  $dbFolderPath = rtrim(getenv('NETALERTX_DB') ?: '/data/db', '/');
  $configFolderPath = rtrim(getenv('NETALERTX_CONFIG') ?: '/data/config', '/');

  $dbPath = $dbFolderPath . '/app.db';
  $confPath = $configFolderPath . '/app.conf';

  // Fallback to legacy paths if new locations don't exist
  if (!file_exists($dbPath) && file_exists('../db/app.db')) {
      $dbPath = '../db/app.db';
  }
  if (!file_exists($confPath) && file_exists('../config/app.conf')) {
      $confPath = '../config/app.conf';
  }
?>

<!-- ----------------------------------------------------------------------- -->


<!-- Page ------------------------------------------------------------------ -->
  <div class="content-wrapper">

<!-- Main content ---------------------------------------------------------- -->
    <section class="content">

      <!-- Tile toggle cards ------------------------------------------------------- -->
      <div class="row " id="TileCards">
        <!-- Placeholder ------------------------------------------------------- -->
      </div>

<!-- Device presence / Activity Chart ------------------------------------------------------- -->

      <div class="row" id="DevicePresence">
          <div class="col-md-12">
            <div class="box" id="clients">
              <div class="box-header ">
                <h3 class="box-title"><?= lang('Device_Shortcut_OnlineChart');?> </h3>
                <div class="box-tools pull-right">
                  <button type="button" class="btn btn-box-tool" data-widget="collapse">
                    <i class="fa fa-minus"></i>
                  </button>
                </div>
              </div>
              <div class="box-body">
                <div class="chart">
                  <script src="lib/chart.js/Chart.js"></script>
                  <!-- presence chart -->
                  <?php
                      require 'php/components/graph_online_history.php';
                  ?>
                </div>
              </div>
              <!-- /.box-body -->
            </div>
          </div>
      </div>

      <!-- Device Filters ------------------------------------------------------- -->
      <div class="box box-aqua hidden" id="columnFiltersWrap">
        <div class="box-header ">
          <h3 class="box-title"><?= lang('Devices_Filters');?> </h3>
          <div class="box-tools pull-right">
            <button type="button" class="btn btn-box-tool" data-widget="collapse">
              <i class="fa fa-minus"></i>
            </button>
          </div>
        </div>
        <!-- Placeholder ------------------------------------------------------- -->
        <div class="box-body" id="columnFilters"></div>
      </div>

<!-- datatable ------------------------------------------------------------- -->
      <div class="row">
        <div class="col-xs-12">
          <div id="tableDevicesBox" class="box">

            <!-- box-header -->
            <div class="box-header">
              <div class=" col-sm-8 ">
                <h3 id="tableDevicesTitle" class="box-title text-gray "></h3>
              <!-- Next scan ETA — populated by sse_manager.js via nax:scanEtaUpdate -->
              <small id="nextScanEta" class="text-muted" style="display:none;margin-left:8px;font-weight:normal;font-size:0.75em;"></small>
              </div>
              <div  class="dummyDevice col-sm-4 ">
                <span id="multiEditPlc">
                  <!-- multi edit button placeholder -->
                </span>
                <span>
                  <a href="deviceDetails.php?mac=new"><i title="<?= lang('Gen_create_new_device');?>" class="fa fa-square-plus"></i> <?= lang('Gen_create_new_device');?></a>
                </span>
              </div>
            </div>

            <!-- table -->
            <div class="box-body table-responsive">
              <table id="tableDevices" class="table table-bordered table-hover table-striped">
                <thead>
                <tr>

                </tr>
                </thead>
              </table>
            </div>
            <!-- /.box-body -->

          </div>
          <!-- /.box -->
        </div>
        <!-- /.col -->
      </div>
      <!-- /.row -->

<!-- ----------------------------------------------------------------------- -->
    </section>
    <!-- /.content -->

  </div>
  <!-- /.content-wrapper -->


<!-- ----------------------------------------------------------------------- -->
<?php
  require 'php/templates/footer.php';
?>


<!-- page script ----------------------------------------------------------- -->
<script>
  var deviceStatus    = 'all';

  var tableOrder      = getCache ("nax_parTableOrder") == "" ? [[3,'desc'], [0,'asc']] : JSON.parse(getCache ("nax_parTableOrder")) ;

  var tableColumnHide = [];
  var tableColumnOrder = [];
  var tableColumnVisible = [];
  headersDefaultOrder = [];
  missingNumbers = [];

  // DEVICE_COLUMN_FIELDS, COL, NUMERIC_DEFAULTS, GRAPHQL_EXTRA_FIELDS, COLUMN_NAME_MAP
  // are all defined in js/device-columns.js — edit that file to add new columns.

  // Collapse DevicePresence and Filters sections by default on small/mobile screens
  (function collapseOnMobile() {
    if (window.innerWidth < 768) {
      ['#clients', '#columnFiltersWrap'].forEach(function(sel) {
        var $box = $(sel);
        if ($box.length) {
          $box.addClass('collapsed-box');
          $box.find('.box-body, .box-footer').hide();
          $box.find('[data-widget="collapse"] i').removeClass('fa-minus').addClass('fa-plus');
        }
      });
    }
  })();

  // Read parameters & Initialize components
  callAfterAppInitialized(main)
  showSpinner();

// -----------------------------------------------------------------------------
function main () {

  showSpinner();

  initFilters();

  // render tiles
  getDevicesTotals();

  //initialize the table headers in the correct order
  var availableColumns = getSettingOptions("UI_device_columns").split(",");
  headersDefaultOrder = availableColumns.map(val => getString(val));

  var selectedColumns = JSON.parse(getSetting("UI_device_columns").replace(/'/g, '"'));

  // generate default order lists of given length
  var columnsStr = JSON.stringify(Array.from({ length: headersDefaultOrder.length }, (_, i) => i));
  tableColumnOrder = Array.from({ length: headersDefaultOrder.length }, (_, i) => i);
  tableColumnVisible = [];

  // Initialize tableColumnVisible by including all columns from selectedColumns, preserving their order.
  tableColumnVisible = selectedColumns.map(column => availableColumns.indexOf(column)).filter(index => index !== -1);

  // Add any columns from availableColumns that are not in selectedColumns to the end.
  const remainingColumns = availableColumns.map((column, index) => index).filter(index => !tableColumnVisible.includes(index));

  // Combine both arrays.
  tableColumnOrder = tableColumnVisible.concat(remainingColumns);

  // Generate the full array of numbers from 0 to totalLength - 1 of tableColumnOrder
  const fullArray = Array.from({ length: tableColumnOrder.length }, (_, i) => i);

  // Filter out the elements already present in inputArray
  missingNumbers = fullArray.filter(num => !tableColumnVisible.includes(num));

  // Concatenate the inputArray with the missingNumbers
  tableColumnOrder = [...tableColumnVisible, ...missingNumbers];

  // Initialize components with parameters
  initializeDatatable(getUrlAnchor('my_devices'));

  // check if data outdated and show spinner if so
  handleLoadingDialog()

}

// -----------------------------------------------------------------------------
// mapping the default order to the user specified one
function mapIndx(oldIndex)
{
  // console.log(oldIndex);
  // console.log(tableColumnOrder);

  for(i=0;i<tableColumnOrder.length;i++)
  {
    if(tableColumnOrder[i] == oldIndex)
    {
      return i;
    }
  }
}

//------------------------------------------------------------------------------
//  Query total numbers of Devices by status
//------------------------------------------------------------------------------
function getDevicesTotals() {
    maxDelay = 180; //cap at 180 seconds

    let maxRetries = Math.ceil(Math.log2(maxDelay)); // Calculate maximum retries to cap at maxDelay seconds
    let attempt = 0;
    let calledUpdateAPI = false;

    function fetchDataWithBackoff() {
        // Calculate the delay (2^attempt seconds, capped at maxDelay seconds)
        const delay = Math.min(2 ** attempt, maxDelay) * 1000;

        // Attempt to fetch data
        $.ajax({
            url: 'php/server/query_json.php',
            type: "GET",
            dataType: "json",
            data: {
                file: 'table_devices_tiles.json', // Pass the file parameter
                nocache: Date.now() // Prevent caching with a timestamp
            },
            success: function(response) {
                if (response && response.data) {
                    const resultJSON = response.data[0]; // Assuming the structure {"data": [ ... ]}

                    // Save the result to cache
                    setCache("getDevicesTotals", JSON.stringify(resultJSON));

                    // Process the fetched data
                    processDeviceTotals(resultJSON);
                } else {
                    console.error("Invalid response format from API");
                }
            },
            error: function(xhr, status, error) {
                console.error("Failed to fetch devices data (Attempt " + (attempt + 1) + "):", error);

                //  try updating the API once
                if(calledUpdateAPI == false)
                {
                  calledUpdateAPI = true;
                  updateApi("devices_tiles");
                }

                // Retry logic
                if (attempt < maxRetries) {
                    attempt++;
                    setTimeout(fetchDataWithBackoff, delay);
                } else {
                    console.error("Maximum retries reached. Unable to fetch devices data.");
                }
            }
        });
    }

    // Start the first fetch attempt
    fetchDataWithBackoff();
}

function processDeviceTotals(devicesData) {
  // Define filter conditions and corresponding objects
  const filters = [
    { status: 'my_devices',         color: 'bg-aqua',   label: getString('Device_Shortcut_AllDevices'), icon: 'fa-laptop' },
    { status: 'all',                color: 'bg-aqua',   label: getString('Gen_All_Devices'),            icon: 'fa-laptop' },
    { status: 'connected',          color: 'bg-green',  label: getString('Device_Shortcut_Connected'),  icon: 'fa-plug' },
    { status: 'favorites',          color: 'bg-yellow', label: getString('Device_Shortcut_Favorites'),  icon: 'fa-star' },
    { status: 'new',                color: 'bg-yellow', label: getString('Device_Shortcut_NewDevices'), icon: 'fa-plus' },
    { status: 'down',               color: 'bg-red',    label: getString('Device_Shortcut_DownOnly'),   icon: 'fa-warning' },
    { status: 'archived',           color: 'bg-gray',   label: getString('Device_Shortcut_Archived'),   icon: 'fa-eye-slash' },
    { status: 'offline',            color: 'bg-gray',   label: getString('Gen_Offline'),                icon: 'fa-xmark' },
    { status: 'all_devices',        color: 'bg-gray',   label: getString('Gen_All_Devices'),            icon: 'fa-laptop' },
    { status: 'network_devices',    color: 'bg-aqua',   label: getString('Network_Devices'),            icon: 'fa-sitemap fa-rotate-270' }
  ];

  // Initialize an empty array to store the final objects
  let dataArray = [];

  // Loop through each filter condition
  filters.forEach(filter => {
    // Get count directly from API response data
    let count = devicesData[filter.status] || 0;

    // Check any condition to skip adding the object to dataArray
    if (
      (['', 'False'].includes(getSetting('UI_hide_empty')) || (getSetting('UI_hide_empty') == "True" && count > 0)) &&
      (getSetting('UI_shown_cards') == "" || getSetting('UI_shown_cards').includes(filter.status))
    ) {
      dataArray.push({
        onclickEvent: `forceLoadUrl('devices.php#${filter.status}')`,
        color: filter.color,
        title: count,
        label: filter.label,
        icon: filter.icon
      });
    }
  });

  // Render info boxes/tile cards
  renderInfoboxes(dataArray);
}

//------------------------------------------------------------------------------
//  Render the info boxes/tiles on top
function renderInfoboxes(customData) {
  if(customData.length > 0)
  {
    $.ajax({
      url: 'php/components/tile_cards.php', // PHP script URL
      type: 'POST', // Use POST method to send data
      dataType: 'html', // Expect HTML response
      data: { items: JSON.stringify(customData) }, // Send customData as JSON
      success: function(response) {
        $('#TileCards').html(response); // Replace container content with fetched HTML
      },
      error: function(xhr, status, error) {
        console.error('Error fetching infoboxes:', error);
      }
    });
  }
}

// -----------------------------------------------------------------------------
//Render filters if specified
let columnFilters = [];

function initFilters() {
    // Attempt to fetch data
    $.ajax({
        url: 'php/server/query_json.php',
        type: "GET",
        dataType: "json",
        data: {
            file: 'table_devices_filters.json', // Pass the file parameter
            nocache: Date.now() // Prevent caching with a timestamp
        },
        success: function(response) {
            if (response && response.data) {

                let resultJSON = response.data;

                // Save the result to cache
                setCache("devicesFilters", JSON.stringify(resultJSON));

                // Get the displayed filters from settings
                const displayedFilters = createArray(getSetting("UI_columns_filters"));

                // Clear any existing filters in the DOM
                $('#columnFilters').empty();

                // Ensure displayedFilters is an array and not empty
                if (Array.isArray(displayedFilters) && displayedFilters.length > 0) {
                    $('#columnFiltersWrap').removeClass("hidden");

                    displayedFilters.forEach(columnHeaderStringKey => {
                      // Get the column name using the mapping function
                      const columnName = getColumnNameFromLangString(columnHeaderStringKey);

                      // Ensure columnName is valid before proceeding
                      if (columnName) {
                          // Add the filter to the columnFilters array as [columnName, columnHeaderStringKey]
                          columnFilters.push([columnName, columnHeaderStringKey]);
                      } else {
                          console.warn(`Invalid column header string key: ${columnHeaderStringKey}`);
                      }
                    });

                    // Filter resultJSON to include only entries with columnName in columnFilters
                    resultJSON = resultJSON.filter(entry =>
                        columnFilters.some(filter => filter[0] === entry.columnName)
                    );

                    // Expand resultJSON to include the columnHeaderStringKey
                    resultJSON.forEach(entry => {
                        // Find the matching columnHeaderStringKey from columnFilters
                        const matchingFilter = columnFilters.find(filter => filter[0] === entry.columnName);

                        // Add the columnHeaderStringKey to the entry
                        if (matchingFilter) {
                            entry['columnHeaderStringKey'] = matchingFilter[1];
                        }
                    });

                    console.log(resultJSON);

                    // Transforming the data
                    const transformed = {
                      filters: []
                    };

                    // Group data by columnName
                    resultJSON.forEach(entry => {
                      const existingFilter = transformed.filters.find(filter => filter.column === entry.columnName);

                      if (existingFilter) {
                        // Add the unique columnValue to options if not already present
                        if (!existingFilter.options.some(opt => opt.value === entry.columnValue)) {
                          existingFilter.options.push({
                            value: entry.columnValue,
                            label: entry.columnLabel || entry.columnValue
                          });
                        }
                      } else {
                        // Create a new filter entry
                        transformed.filters.push({
                          column: entry.columnName,
                          headerKey: entry.columnHeaderStringKey,
                          options: [{
                            value: entry.columnValue,
                            label: entry.columnLabel || entry.columnValue
                          }]
                        });
                      }
                    });

                    // Sort options alphabetically by label for better readability
                    transformed.filters.forEach(filter => {
                      filter.options.sort((a, b) => a.label.localeCompare(b.label));
                    });

                    // Output the result
                    transformedJson =  transformed

                    // Process the fetched data
                    renderFilters(transformedJson);
                } else {
                    console.log("No filters to display.");
                }
            } else {
                console.error("Invalid response format from API");
            }
        },
        error: function(xhr, status, error) {
            console.error("Failed to fetch devices data 'table_devices_filters.json':", error);
        }
    });
}


// -------------------------------------------
// Server side component
function renderFilters(customData) {

  // console.log(JSON.stringify(customData));

  // Load filter data from the JSON file
  $.ajax({
    url: 'php/components/devices_filters.php', // PHP script URL
    data: { filterObject: JSON.stringify(customData) }, // Send customData as JSON
    type: 'POST',
    dataType: 'html',
    success: function(response) {
      // console.log(response);

      $('#columnFilters').html(response); // Replace container content with fetched HTML
      $('#columnFilters').removeClass('hidden'); // Show the filters container

      // Trigger the draw after select change
      $('.filter-dropdown').on('change', function() {
          // Collect filters
          const columnFilters = collectFilters();

          // Apply column filters then draw once (previously drew twice — bug fixed).
          const table = $('#tableDevices').DataTable();
          table.columnFilters = columnFilters;
          table.draw();
      });

    },
    error: function(xhr, status, error) {
      console.error('Error fetching filters:', error);
    }
  });
}

// -------------------------------------------
// Function to collect filters
function collectFilters() {
    const columnFilters = [];

    // Loop through each filter group
    document.querySelectorAll('.filter-group').forEach(filterGroup => {
        const dropdown = filterGroup.querySelector('.filter-dropdown');

        if (dropdown) {
            const filterColumn = dropdown.getAttribute('data-column');
            const filterValue = dropdown.value;

            if (filterValue && filterColumn) {
                columnFilters.push({
                    filterColumn: filterColumn,
                    filterValue: filterValue
                });
            }
        }
    });

    return columnFilters;
}


// -----------------------------------------------------------------------------
// Map column index to column name for GraphQL query
function mapColumnIndexToFieldName(index, tableColumnVisible) {
  // Derives field name from the authoritative DEVICE_COLUMN_FIELDS constant.
  return DEVICE_COLUMN_FIELDS[tableColumnOrder[index]] || null;
}


// ---------------------------------------------------------
// Status badge helper for DataTables rowData (positional array).
// Uses mapIndx(COL.*) for reordered display fields and COL_EXTRA.* for extra fields.
function badgeFromRowData(rowData) {
  return getStatusBadgeParts(
    rowData[mapIndx(COL.devPresentLastScan)],
    rowData[mapIndx(COL.devAlertDown)],
    rowData[mapIndx(COL.devFlapping)],
    rowData[mapIndx(COL.devMac)],
    '',
    rowData[COL_EXTRA.devIsSleeping] || 0,
    rowData[COL_EXTRA.devIsArchived] || 0,
    rowData[COL_EXTRA.devIsNew]      || 0
  );
}

// ---------------------------------------------------------
// Build the rich empty-table onboarding message (HTML).
// Used as the DataTables 'emptyTable' language option.
function buildEmptyDeviceTableMessage(nextScanLabel) {
  var etaLine = nextScanLabel
    ? '<small class="text-muted" style="margin-top:6px;display:block;">' + nextScanLabel + '</small>'
    : '';
  return '<div class="text-center" style="padding:20px;">' +
    '<i class="fa fa-search fa-2x text-muted" style="margin-bottom:10px;"></i><br>' +
    '<strong>' + getString('Device_NoData_Title') + '</strong><br>' +
    '<span class="text-muted">' + getString('Device_NoData_Scanning') + '</span><br>' +
    etaLine +
    '<small style="margin-top:6px;display:block;">' + getString('Device_NoData_Help') + '</small>' +
    '</div>';
}

// ---------------------------------------------------------
// Compute a live countdown label from an ISO next_scan_time string.
// next_scan_time is the earliest scheduled run time across enabled device_scanner plugins,
// computed by the backend and broadcast via SSE — no guesswork needed on the frontend.
function computeNextScanLabel(nextScanTime) {
  if (!nextScanTime) return getString('Device_NextScan_Imminent');
  // Append Z if no UTC offset marker present — backend may emit naive UTC ISO strings.
  var isoStr = /Z$|[+-]\d{2}:?\d{2}$/.test(nextScanTime.trim()) ? nextScanTime : nextScanTime + 'Z';
  var secsLeft = Math.round((new Date(isoStr).getTime() - Date.now()) / 1000);
  if (secsLeft <= 0) return getString('Device_NextScan_Imminent');
  if (secsLeft >= 60) {
    var m = Math.floor(secsLeft / 60);
    var s = secsLeft % 60;
    return getString('Device_NextScan_In') + m + 'm ' + s + 's';
  }
  return getString('Device_NextScan_In') + secsLeft + 's';
}

// Anchor for next scheduled scan time, ticker handle, plugins data, and current state — module-level.
var _nextScanTimeAnchor = null;
var _currentStateAnchor = null;
var _scanEtaTickerId    = null;
var _pluginsData        = null;
var _wasImminent        = false; // true once the countdown displayed "imminent"; gates the Scanning... label
var _imminentForTime    = null;  // the _nextScanTimeAnchor value that last set _wasImminent
                                 // prevents re-arming on the same (already-consumed) timestamp

// Returns true when the backend is actively scanning (not idle).
// Uses an exclusion approach — only "Process: Idle" and an empty/null state are non-scanning.
// This future-proofs against new states added to the scan pipeline (e.g. "Plugin: AVAHISCAN").
function isScanningState(state) {
  return !!state && state !== 'Process: Idle';
}

// Fetch plugins.json once on page load so we can guard ETA display to device_scanner plugins only.
$.get('php/server/query_json.php', { file: 'plugins.json', nocache: Date.now() }, function(res) {
  _pluginsData = res['data'] || [];
});

// Returns true only when at least one device_scanner plugin is loaded and not disabled.
function hasEnabledDeviceScanners() {
  if (!_pluginsData || !_pluginsData.length) return false;
  return getPluginsByType(_pluginsData, 'device_scanner', true).length > 0;
}

// ---------------------------------------------------------
// Update the title-bar ETA subtitle and the DataTables empty-state message.
// Called on every nax:scanEtaUpdate; the inner ticker keeps the title bar live between events.
function updateScanEtaDisplay(nextScanTime, currentState) {
  // Detect scan-finished transition BEFORE updating _currentStateAnchor.
  // justFinishedScanning is true only when the backend transitions scanning → idle.
  var justFinishedScanning = (currentState === 'Process: Idle') && isScanningState(_currentStateAnchor);

  // Prefer the backend-computed values; keep previous anchors if not yet received.
  _nextScanTimeAnchor = nextScanTime || _nextScanTimeAnchor;
  _currentStateAnchor = currentState || _currentStateAnchor;

  // Reset the imminent gate when the scan finishes back to idle so the next cycle starts clean.
  if (currentState === 'Process: Idle') { _wasImminent = false; }

  // Restart the per-second title-bar ticker
  if (_scanEtaTickerId !== null) { clearInterval(_scanEtaTickerId); }

  function getEtaLabel() {
    if (!hasEnabledDeviceScanners()) return '';
    if (isScanningState(_currentStateAnchor) && _wasImminent) return getString('Device_Scanning');
    var label = computeNextScanLabel(_nextScanTimeAnchor);
    // Arm _wasImminent only for a NEW next_scan_time anchor — not the already-consumed one.
    // This prevents the ticker from re-arming immediately after "Process: Idle" resets the flag
    // while _nextScanTimeAnchor still holds the now-past timestamp.
    if (label === getString('Device_NextScan_Imminent') && _nextScanTimeAnchor !== _imminentForTime) {
      _wasImminent = true;
      _imminentForTime = _nextScanTimeAnchor;
    }
    return label;
  }

  function tickTitleBar() {
    var eta = document.getElementById('nextScanEta');
    if (!eta) return;
    var label = getEtaLabel();
    if (!label) { eta.style.display = 'none'; return; }
    eta.textContent = label;
    eta.style.display = '';
  }

  // Update DataTables empty message once per SSE event.
  // NOTE: Do NOT call dt.draw() here — on page load the SSE queue replays all
  // accumulated events at once, causing a draw() (= GraphQL AJAX call) per event.
  // Instead, update the visible empty-state DOM cell directly.
  var label = getEtaLabel();
  if ($.fn.DataTable.isDataTable('#tableDevices')) {
    var dt = $('#tableDevices').DataTable();
    var newEmptyMsg = buildEmptyDeviceTableMessage(label);
    dt.settings()[0].oLanguage.sEmptyTable = newEmptyMsg;
    if (dt.page.info().recordsTotal === 0) {
      // Patch the visible cell text without triggering a server-side AJAX reload.
      $('#tableDevices tbody .dataTables_empty').html(newEmptyMsg);
    }

    // When scanning just finished and the table is still empty, reload data so
    // newly discovered devices appear automatically. Skip reload if there are
    // already rows — no need to disturb the user's current view.
    if (justFinishedScanning && dt.page.info().recordsTotal === 0) {
      dt.ajax.reload(null, false); // false = keep current page position
    }
  }

  tickTitleBar();
  _scanEtaTickerId = setInterval(tickTitleBar, 1000);
}

// Listen for scan ETA updates dispatched by sse_manager.js (SSE push or poll fallback)
document.addEventListener('nax:scanEtaUpdate', function(e) {
  updateScanEtaDisplay(e.detail.nextScanTime, e.detail.currentState);
});

// ---------------------------------------------------------
// Initializes the main devices list datatable
function initializeDatatable (status) {

  if(!status)
  {
    status = 'my_devices'
  }

  // retrieve page size
  var tableRows       = getCache ("nax_parTableRows") == "" ? parseInt(getSetting("UI_DEFAULT_PAGE_SIZE")) : getCache ("nax_parTableRows") ;

  // Save status selected
  deviceStatus = status;

  // Define color & title for the status selected
  switch (deviceStatus) {
    case 'my_devices':      tableTitle = getString('Device_Shortcut_AllDevices');  color = 'aqua';    break;
    case 'connected':       tableTitle = getString('Device_Shortcut_Connected');   color = 'green';   break;
    case 'all':             tableTitle = getString('Gen_All_Devices');             color = 'aqua';    break;
    case 'favorites':       tableTitle = getString('Device_Shortcut_Favorites');   color = 'yellow';  break;
    case 'new':             tableTitle = getString('Device_Shortcut_NewDevices');  color = 'yellow';  break;
    case 'down':            tableTitle = getString('Device_Shortcut_DownOnly');    color = 'red';     break;
    case 'archived':        tableTitle = getString('Device_Shortcut_Archived');    color = 'gray';    break;
    case 'offline':         tableTitle = getString('Gen_Offline');                 color = 'gray';    break;
    case 'all_devices':     tableTitle = getString('Gen_All_Devices');             color = 'gray';    break;
    case 'network_devices': tableTitle = getString('Network_Devices');             color = 'aqua';    break;
    default:                tableTitle = getString('Device_Shortcut_Devices');     color = 'gray';    break;
  }

  // Set title and color
  $('#tableDevicesTitle')[0].className = 'box-title text-'+ color;
  $('#tableDevicesBox')[0].className = 'box box-'+ color;
  $('#tableDevicesTitle').html (tableTitle);

  // render table headers
  html = '';

  for(index = 0; index < tableColumnOrder.length; index++)
  {
    html += '<th>' + headersDefaultOrder[tableColumnOrder[index]] + '</th>';
  }

  $('#tableDevices tr').html(html);

  hideUIelements("UI_DEV_SECTIONS")

  for(i = 0; i < tableColumnOrder.length; i++)
  {
    // hide this column if not in the tableColumnVisible variable (we need to keep the MAC address (index 11) for functionality reasons)
    if(tableColumnVisible.includes(tableColumnOrder[i]) == false)
    {
      tableColumnHide.push(mapIndx(tableColumnOrder[i]));
    }
  }

  var table = $('#tableDevices').DataTable({
    "serverSide": true,
    "processing": true,
    "ajax": {
      "url": 'php/server/query_graphql.php',  // PHP endpoint that proxies to the GraphQL server
      "type": "POST",
      "contentType": "application/json",
      "data": function (d) {
        // GraphQL fields are derived from DEVICE_COLUMN_FIELDS + GRAPHQL_EXTRA_FIELDS
        // (both defined in js/device-columns.js). No manual field list to maintain.
        const _gqlFields = [...new Set([...DEVICE_COLUMN_FIELDS, ...GRAPHQL_EXTRA_FIELDS])]
          .join('\n                ');
        let graphqlQuery = `
          query devices($options: PageQueryOptionsInput) {
            devices(options: $options) {
              devices {
                ${_gqlFields}
              }
              count
              dbCount
            }
          }
        `;

        console.log(d);

        // Handle empty filters
        let columnFilters = collectFilters();
        if (columnFilters.length === 0) {
            columnFilters = [];
        }


        // Prepare query variables for pagination, sorting, and search
        let query = {
          "operationName": null,
          "query": graphqlQuery,
          "variables": {
            "options": {
              "page": Math.floor(d.start / d.length) + 1,  // Page number (1-based)
              "limit": parseInt(d.length, 10),  // Page size (ensure it's an integer)
              "sort": d.order && d.order[0] ? [{
                "field": mapColumnIndexToFieldName(d.order[0].column, tableColumnVisible),  // Sort field from DataTable column
                "order": d.order[0].dir.toUpperCase()  // Sort direction (ASC/DESC)
              }] : [],  // Default to an empty array if no sorting is defined
              "search": d.search.value,  // Search query
              "status": deviceStatus,
              "filters" : columnFilters
            }

          }
        };

        return JSON.stringify(query);  // Send the JSON request
      },
      "dataSrc": function (res) {

        console.log("Raw response:", res);
        const json = res["data"];

        // recordsTotal = raw DB count (before filters/search) so DataTables uses emptyTable
        // only when the DB is genuinely empty, and zeroRecords when a filter returns nothing.
        res.recordsTotal    = json.devices.dbCount || 0;
        res.recordsFiltered = json.devices.count    || 0;

        // console.log("recordsTotal:", res.recordsTotal, "recordsFiltered:", res.recordsFiltered);
        // console.log("tableRows:", tableRows);

        // Return only the array of rows for the table
        return json.devices.devices.map(device => {
            // Build positional row directly from DEVICE_COLUMN_FIELDS.
            // NUMERIC_DEFAULTS controls which fields default to 0 vs "".
            // Adding a new column: add to DEVICE_COLUMN_FIELDS (and NUMERIC_DEFAULTS
            // if needed) in js/device-columns.js — nothing to change here.
            const originalRow = DEVICE_COLUMN_FIELDS.map(
                field => device[field] ?? (NUMERIC_DEFAULTS.has(field) ? 0 : "")
            );

            const newRow = [];
            // Reorder data based on user-defined columns order
            for (let index = 0; index < tableColumnOrder.length; index++) {
                newRow.push(originalRow[tableColumnOrder[index]]);
            }
            // Append extra (non-display) fields after the display columns so
            // they are accessible in createdCell via COL_EXTRA.*
            GRAPHQL_EXTRA_FIELDS.forEach(field => {
                newRow.push(device[field] ?? (NUMERIC_DEFAULTS.has(field) ? 0 : ""));
            });
            return newRow;
        });
      }
    },
    'paging'       : true,
    'lengthChange' : true,
    'lengthMenu'   : getLengthMenu(parseInt(getSetting("UI_DEFAULT_PAGE_SIZE"))),
    'searching'    : true,

    'ordering'     : true,
    'info'         : true,
    'autoWidth'    : false,
    'dom': '<"top"f>rtl<"bottom"ip><"clear">',

    // Parameters
    'pageLength'   : tableRows,
    'order'        : tableOrder,
    'select'       : true, // Enable selection

    'fixedHeader': true,
    'fixedHeader': {
        'header': true,
        'footer': true
    },

    'columnDefs'   : [
      {visible:   false,         targets: tableColumnHide },
      {className: 'text-center', targets: [mapIndx(COL.devFavorite), mapIndx(COL.devIsRandomMac), mapIndx(COL.devStatus), mapIndx(COL.devParentChildrenCount), mapIndx(COL.devParentPort)] },
      {className: 'iconColumn text-center',  targets: [mapIndx(COL.devIcon)]},
      {width:     '80px',        targets: [mapIndx(COL.devFirstConnection), mapIndx(COL.devLastConnection), mapIndx(COL.devParentChildrenCount), mapIndx(COL.devFQDN)] },
      {width:     '85px',        targets: [mapIndx(COL.devIsRandomMac)] },
      {width:     '30px',        targets: [mapIndx(COL.devIcon), mapIndx(COL.devStatus), mapIndx(COL.rowid), mapIndx(COL.devParentPort)] },
      {orderData: [mapIndx(COL.devIpLong)],  targets: mapIndx(COL.devLastIP) },

      // Device Name and FQDN
      {targets: [mapIndx(COL.devName), mapIndx(COL.devFQDN)],
        'createdCell': function (td, cellData, rowData, row, col) {

            // console.log(cellData)

            var displayedValue = cellData;

            if(isEmpty(displayedValue))
            {
              displayedValue = "N/A"
            }
            $(td).html (
              `<b class="anonymizeDev "
              >
                <a href="deviceDetails.php?mac=${rowData[mapIndx(COL.devMac)]}" class="hover-node-info"
                  data-name="${displayedValue}"
                  data-ip="${rowData[mapIndx(COL.devLastIP)]}"
                  data-mac="${rowData[mapIndx(COL.devMac)]}"
                  data-vendor="${rowData[mapIndx(COL.devVendor)]}"
                  data-type="${rowData[mapIndx(COL.devType)]}"
                  data-firstseen="${rowData[mapIndx(COL.devFirstConnection)]}"
                  data-lastseen="${rowData[mapIndx(COL.devLastConnection)]}"
                  data-relationship="${rowData[mapIndx(COL.devParentRelType)]}"
                  data-status="${rowData[mapIndx(COL.devStatus)]}"
                  data-present="${rowData[mapIndx(COL.devPresentLastScan)]}"
                  data-alertdown="${rowData[mapIndx(COL.devAlertDown)]}"
                  data-flapping="${rowData[mapIndx(COL.devFlapping)]}"
                  data-sleeping="${rowData[COL_EXTRA.devIsSleeping] || 0}"
                  data-archived="${rowData[COL_EXTRA.devIsArchived] || 0}"
                  data-isnew="${rowData[COL_EXTRA.devIsNew]    || 0}"
                  data-icon="${rowData[mapIndx(COL.devIcon)]}">
                ${displayedValue}
                </a>
              </b>`
            );
      } },

      // Connected Devices
      {targets: [mapIndx(COL.devParentChildrenCount)],
        'createdCell': function (td, cellData, rowData, row, col) {
          // check if this is a network device
          if(getSetting("NETWORK_DEVICE_TYPES").includes(`'${rowData[mapIndx(COL.devType)]}'`)   )
          {
            $(td).html ('<b><a href="./network.php?mac='+ rowData[mapIndx(COL.devMac)] +'" class="">'+ cellData +'</a></b>');
          }
          else
          {
            $(td).html (`<i class="fa-solid fa-xmark" title="${getString("Device_Table_Not_Network_Device")}"></i>`)
          }

      } },

      // Icon
      {targets: [mapIndx(COL.devIcon)],
        'createdCell': function (td, cellData, rowData, row, col) {

          if (!emptyArr.includes(cellData)){
            $(td).html (atob(cellData));
          } else {
            $(td).html ('');
          }
      } },

      // Full MAC
      {targets: [mapIndx(COL.devMac)],
        'createdCell': function (td, cellData, rowData, row, col) {
          if (!emptyArr.includes(cellData)){
            $(td).html ('<span class="anonymizeMac">'+cellData+'</span>');
          } else {
            $(td).html ('');
          }
      } },

      // IP address
      {targets: [mapIndx(COL.devLastIP)],
        'createdCell': function (td, cellData, rowData, row, col) {
            if (!emptyArr.includes(cellData)){
              $(td).html (`<span class="anonymizeIp">
                            <a href="http://${cellData}" class="pointer" target="_blank">
                                ${cellData}
                            </a>
                            <span class="alignRight lockIcon">
                              <a href="https://${cellData}" class="pointer" target="_blank">
                                <i class="fa fa-lock "></i>
                              </a>
                            <span>
                          <span>`);
            } else {
              $(td).html ('');
            }
        }
      },
      // IP address (orderable)
      {targets: [mapIndx(COL.devIpLong)],
        'createdCell': function (td, cellData, rowData, row, col) {
            if (!emptyArr.includes(cellData)){
              $(td).html (`<span class="anonymizeIp">${cellData}<span>`);
            } else {
              $(td).html ('');
            }
        }
      },

      // Custom Properties
      {targets: [mapIndx(COL.devCustomProps)],
        'createdCell': function (td, cellData, rowData, row, col) {
            if (!emptyArr.includes(cellData)){
              $(td).html (`<span>${renderCustomProps(cellData, rowData[mapIndx(COL.devMac)])}</span>`);
            } else {
              $(td).html ('');
            }
        }
      },

      // Favorite
      {targets: [mapIndx(COL.devFavorite)],
        'createdCell': function (td, cellData, rowData, row, col) {
          if (cellData == 1){
            $(td).html ('<i class="fa fa-star text-yellow" style="font-size:16px"></i>');
          } else {
            $(td).html ('');
          }
      } },

      // Dates
      {targets: [mapIndx(COL.devFirstConnection), mapIndx(COL.devLastConnection)],
        'createdCell': function (td, cellData, rowData, row, col) {
          var result = cellData.toString(); // Convert to string
          if (result.includes("+")) { // Check if timezone offset is present
              result = result.split('+')[0]; // Remove timezone offset
          }
          $(td).html (translateHTMLcodes (result));
      } },

      // Random MAC
      {targets: [mapIndx(COL.devIsRandomMac)],
        'createdCell': function (td, cellData, rowData, row, col) {
          // console.log(cellData)
          if (cellData == 1){
            $(td).html ('<i data-toggle="tooltip" data-placement="right" title="Random MAC" class="fa-solid fa-shuffle"></i>');
          } else {
            $(td).html ('');
          }
      } },

      // Parent Mac
      {targets: [mapIndx(COL.devParentMAC)],
        'createdCell': function (td, cellData, rowData, row, col) {
          if (!isValidMac(cellData)) {
            $(td).html('');
            return;
          }

          const data = {
            id: cellData,       // MAC address
            text: cellData      // Optional display text (you could use a name or something else)
          };

          spanWrap = $(`<span class="custom-badge text-white"></span>`)

          $(td).html(spanWrap);

          const chipHtml = renderDeviceLink(data, spanWrap, true); // pass the td as container

          $(spanWrap).append(chipHtml);
        }
      },
      // Status color
      {targets: [mapIndx(COL.devStatus)],
        'createdCell': function (td, cellData, rowData, row, col) {

          const badge = badgeFromRowData(rowData);

          $(td).html(`<a href="${badge.url}" class="badge ${badge.cssClass}">${badge.iconHtml} ${badge.label}</a>`);
      } },
    ],

    // Processing
    'processing'  : true,
    'language'    : {
      emptyTable:   buildEmptyDeviceTableMessage(getString('Device_NextScan_Imminent')),
      zeroRecords:  "<?= lang('Device_NoMatch_Title');?>",
      "lengthMenu": "<?= lang('Device_Tablelenght');?>",
      "search":     "<?= lang('Device_Searchbox');?>: ",
      "paginate": {
          "next":       "<?= lang('Device_Table_nav_next');?>",
          "previous":   "<?= lang('Device_Table_nav_prev');?>"
      },
      "info":           "<?= lang('Device_Table_info');?>",
    },
    initComplete: function (settings, devices) {
      // Handle any additional interactions or event listeners as required

      // Save cookie Rows displayed, and Parameters rows & order
      $('#tableDevices').on( 'length.dt', function ( e, settings, len ) {
            setCache ("nax_parTableRows", len, 129600); // save for 90 days
          } );

          $('#tableDevices').on( 'order.dt', function () {
            setCache ("nax_parTableOrder", JSON.stringify (table.order()), 129600); // save for 90 days
          } );

          // add multi-edit button
          $('#multiEditPlc').append(
              `<span type="submit" id="multiEdit" class="pointer " style="display:none" onclick="multiEditDevices();">
                <a href="#"><i class="fa fa-pencil " ></i>  ${getString("Device_MultiEdit")} </a>
              </span>`)

          // Event listener for row selection in DataTable
          $('#tableDevices').on('click', 'tr', function (e) {
            setTimeout(function(){
                // Check if any row is selected
                var anyRowSelected = $('#tableDevices tr.selected').length > 0;

                // Toggle visibility of element with ID 'multiEdit'
                $('#multiEdit').toggle(anyRowSelected);
            }, 100);

          });

          // search only after idle
          var typingTimer;  // Timer identifier
          var debounceTime = 750;  // Delay in milliseconds

          $('input[aria-controls="tableDevices"]').off().on('keyup', function () {
              clearTimeout(typingTimer);  // Clear the previous timer
              var searchValue = this.value;

              typingTimer = setTimeout(function () {
                  $('#tableDevices').DataTable().search(searchValue).draw();  // Trigger the search after delay
              }, debounceTime);
          });

          initHoverNodeInfo();
          hideSpinner();

    },
    createdRow: function(row, data, dataIndex) {
        // add devMac to the table row
        $(row).attr('my-devMac', data[mapIndx(COL.devMac)]);

    }

  });
}


// -----------------------------------------------------------------------------
function handleLoadingDialog(needsReload = false)
{
  // console.log(`needsReload: ${needsReload}`);

  $.get('php/server/query_logs.php?file=execution_queue.log&nocache=' + Date.now(), function(data) {

    if(data.includes("update_api|devices"))
    {
      showSpinner("devices_old")

      setTimeout(handleLoadingDialog(true), 1000);

    } else if (needsReload)
    {
      location.reload();
    }else
    {
      // hideSpinner();
    }

  })

}

// -----------------------------------------------------------------------------
// Function collects selected devices in the DataTable and redirects the user to
// the Miantenance section with a 'macs' query string identifying selected devices
function multiEditDevices()
{
  // get selected devices
  var selectedDevicesDataTableData = $('#tableDevices').DataTable().rows({ selected: true, page: 'current' }).data().toArray();

  console.log(selectedDevicesDataTableData);

  macs = ""

  for (var j = 0; j < selectedDevicesDataTableData.length; j++) {
    macs += selectedDevicesDataTableData[j][mapIndx(COL.devMac)] + ",";  // MAC
  }

  // redirect to the Maintenance section
  window.location.href = './maintenance.php#tab_multiEdit?macs=' + macs.slice(0, -1);
}


// -----------------------------------------------------------------------------
// Function collects shown devices from the DataTable
function getMacsOfShownDevices() {
  var table = $('#tableDevices').DataTable();

  var macs = [];

  // Get all row indexes on current page, in display order
  var allIndexes = table.rows({ page: 'current' }).indexes();

  allIndexes.each(function(idx) {
    var rowData = table.row(idx).data();
    if (rowData) {
      macs.push(rowData[mapIndx(COL.devMac)]);  // MAC column
    }
  });

  return macs;
}


// -----------------------------------------------------------------------------
// Handle custom actions/properties on a device
function renderCustomProps(custProps, mac) {
  // Decode and parse the custom properties

  if (!isBase64(custProps)) {

    console.error(`Unable to decode CustomProps for ${mac}`);
    console.error(custProps);

  } else{
    const props = JSON.parse(atob(custProps));
    let html = "";

    props.forEach((propGroup, index) => {
      const propMap = Object.fromEntries(
        propGroup.map(prop => Object.entries(prop)[0]) // Convert array of objects to key-value pairs
      );

      if (propMap["CUSTPROP_show"] === true) { // Render if visible
        let onClickEvent = "";

        switch (propMap["CUSTPROP_type"]) {
          case "show_notes":
            onClickEvent = `showModalOK('${propMap["CUSTPROP_name"]}','${propMap["CUSTPROP_notes"]}')`;
            break;
          case "link":
            onClickEvent = `window.location.href='${propMap["CUSTPROP_args"]}';`;
            break;
          case "link_new_tab":
            onClickEvent = `openInNewTab('${propMap["CUSTPROP_args"]}')`;
            break;
          case "run_plugin":
            onClickEvent = `alert('Not implemented')`;
            break;
          case "delete_dev":
            onClickEvent = `askDeleteDeviceByMac('${mac}')`;
            break;
          default:
            break;
        }

        html += `<div class="pointer devicePropAction" onclick="${onClickEvent}"  title="${propMap["CUSTPROP_name"]} ${propMap["CUSTPROP_args"]}">  ${atob(propMap["CUSTPROP_icon"])} </div>`;
      }
    });

    return html;
  }

  return "Error, check browser Console log"
}



// -----------------------------------------------------------------------------
// Update cache with shown devices before navigating away
window.addEventListener('beforeunload', function(event) {
    // Call your function here
    macs = getMacsOfShownDevices();

    setCache("ntx_visible_macs", macs)

});

</script>