feat: Add XML file management functionality

- Created XmlFiles control class for handling XML file views and regeneration.
- Implemented method to retrieve clients with XML feeds in the factory class.
- Added database migration to include google_merchant_account_id in clients table.
- Created migrations for products_keyword_planner_terms and products_merchant_sync_log tables.
- Added campaign_keywords table migration for managing campaign keyword data.
- Developed main view template for displaying XML files and their statuses.
- Introduced a debug script for analyzing product URLs and their statuses.

templates/products/main_view.php

@@ -56,6 +56,7 @@
           <th>Id oferty</th>
           <th>Kampania</th>
           <th>Grupa reklam</th>
+          <th>URL</th>
           <th>Nazwa produktu</th>
           <th>Wyśw.</th>
           <th>Wyśw. (30d)</th>
@@ -83,63 +84,11 @@
   $openai_enabled = \services\GoogleAdsApi::get_setting( 'openai_enabled' ) !== '0';
   $claude_enabled = \services\GoogleAdsApi::get_setting( 'claude_enabled' ) !== '0';
 ?>
-<style>
-.products-page .products-filters .filter-group.filter-group-columns {
-  min-width: 240px;
-}
-.products-columns-control {
-  border: 1px solid #E2E8F0;
-  border-radius: 6px;
-  background: #FFFFFF;
-  overflow: hidden;
-}
-.products-columns-control summary {
-  cursor: pointer;
-  padding: 8px 10px;
-  font-size: 12px;
-  font-weight: 600;
-  color: #334155;
-  list-style: none;
-}
-.products-columns-control summary::-webkit-details-marker {
-  display: none;
-}
-.products-columns-control summary::after {
-  content: '\25BC';
-  float: right;
-  font-size: 10px;
-  color: #64748B;
-  margin-top: 2px;
-}
-.products-columns-control[open] summary::after {
-  content: '\25B2';
-}
-.products-columns-list {
-  border-top: 1px solid #EEF2F7;
-  padding: 8px 10px;
-  max-height: 220px;
-  overflow-y: auto;
-}
-.products-columns-list .products-col-item {
-  display: flex;
-  align-items: center;
-  gap: 8px;
-  font-size: 12px;
-  color: #334155;
-  margin-bottom: 6px;
-}
-.products-columns-list .products-col-item:last-child {
-  margin-bottom: 0;
-}
-.products-columns-list .products-col-item input[type=checkbox] {
-  margin: 0;
-}
-</style>
 <script type="text/javascript">
 var AI_OPENAI_ENABLED = <?= $openai_enabled ? 'true' : 'false'; ?>;
 var AI_CLAUDE_ENABLED = <?= $claude_enabled ? 'true' : 'false'; ?>;
 var PRODUCTS_COLUMNS_STORAGE_KEY = 'products.columns.visibility';
-var PRODUCTS_LOCKED_COLUMNS = [ 0, 19 ];
+var PRODUCTS_LOCKED_COLUMNS = [ 0, 20 ];
 
 function show_toast( message, type )
 {
@@ -160,6 +109,11 @@ function show_toast( message, type )
   }, 3000 );
 }
 
+function escape_html( value )
+{
+  return $( '<div>' ).text( value == null ? '' : String( value ) ).html();
+}
+
 var GOOGLE_TAXONOMY_ENDPOINT = '/tools/google-taxonomy.php';
 var googleCategories = [];
 
@@ -317,7 +271,8 @@ function products_render_columns_picker( table_instance )
     }
 
     var id = 'products-col-toggle-' + i;
-    var th = $( '#products thead th' ).eq( i );
+    var header_node = table_instance.column( i ).header();
+    var th = header_node ? $( header_node ) : $();
     var title = $.trim( th.find( '.dt-column-title' ).first().text() || th.text() ) || ( 'Kolumna ' + i );
     var checked = table_instance.column( i ).visible() ? ' checked' : '';
 
@@ -356,6 +311,7 @@ $( function()
       { width: '80px', name: 'offer_id' },
       { width: '200px', name: 'campaign_name' },
       { width: '200px', name: 'ad_group_name' },
+      { width: '120px', orderable: false, searchable: false },
       { name: 'name' },
       { width: '50px', name: 'impressions' },
       { width: '80px', name: 'impressions_30' },
@@ -370,12 +326,12 @@ $( function()
       { width: '70px', name: 'min_roas' },
       { width: '50px', name: 'cl3', orderable: false },
       { width: '120px', orderable: false },
-      { width: '50px', orderable: false, className: 'dt-center' }
+      { width: '190px', orderable: false, className: 'dt-center' }
     ],
-    order: [ [ 8, 'desc' ] ],
+    order: [ [ 9, 'desc' ] ],
     language: {
-      processing: '£adowanie...',
-      emptyTable: 'Brak produktów do wyœwietlenia',
+      processing: 'Ładowanie...',
+      emptyTable: 'Brak produktów do wyświetlenia',
       info: 'Produkty _START_ - _END_ z _TOTAL_',
       infoEmpty: '',
       paginate: {
@@ -466,6 +422,308 @@ $( function()
     } );
   }
 
+  $( 'body' ).on( 'click', '.assign-product-scope', function( e )
+  {
+    e.preventDefault();
+
+    var product_id = $( this ).attr( 'product_id' );
+    var client_id = $( '#client_id' ).val() || '';
+
+    if ( !client_id )
+    {
+      $.alert({ title: 'Brak klienta', content: 'Najpierw wybierz klienta, aby przypisać produkt do kampanii i grupy reklam.', type: 'orange' });
+      return;
+    }
+
+    $.confirm({
+      title: 'Dodaj produkt do kampanii/grupy',
+      content: '' +
+        '<form class="assign-product-form">' +
+          '<div class="assign-step assign-step-1">' +
+            '<h4 style="margin-top:0">Krok 1 z 2: Kampania</h4>' +
+            '<div class="form-group">' +
+              '<label style="display:block"><input type="radio" name="campaign_mode" value="existing" checked> Istniejąca kampania</label>' +
+              '<select class="form-control assign-campaign-id" style="margin-top:8px"><option value="">— wybierz kampanię —</option></select>' +
+            '</div>' +
+            '<div class="form-group">' +
+              '<label style="display:block"><input type="radio" name="campaign_mode" value="new"> Nowa kampania</label>' +
+              '<input type="text" class="form-control assign-campaign-name" placeholder="Nazwa nowej kampanii" style="margin-top:8px;display:none">' +
+              '<div class="assign-new-campaign-options" style="display:none;margin-top:8px">' +
+                '<div style="display:flex;gap:8px">' +
+                  '<input type="number" min="1" step="0.01" class="form-control assign-campaign-budget" value="50.00" placeholder="Budżet dzienny (np. 50.00 PLN)">' +
+                  '<input type="number" min="0.1" step="0.01" class="form-control assign-default-cpc" value="1.00" placeholder="Domyślne CPC (np. 1.00 PLN)">' +
+                '</div>' +
+                '<small class="text-muted">Dotyczy tylko tworzenia nowej kampanii Standard Shopping.</small>' +
+              '</div>' +
+            '</div>' +
+          '</div>' +
+          '<div class="assign-step assign-step-2" style="display:none">' +
+            '<h4 style="margin-top:0">Krok 2 z 2: Grupa reklam</h4>' +
+            '<div class="form-group">' +
+              '<label style="display:block"><input type="radio" name="ad_group_mode" value="existing" checked> Istniejąca grupa reklam</label>' +
+              '<select class="form-control assign-ad-group-id" style="margin-top:8px"><option value="">— wybierz grupę reklam —</option></select>' +
+            '</div>' +
+            '<div class="form-group">' +
+              '<label style="display:block"><input type="radio" name="ad_group_mode" value="new"> Nowa grupa reklam</label>' +
+              '<input type="text" class="form-control assign-ad-group-name" placeholder="Nazwa nowej grupy reklam" style="margin-top:8px;display:none">' +
+            '</div>' +
+          '</div>' +
+        '</form>',
+      useBootstrap: false,
+      boxWidth: '720px',
+      theme: 'modern',
+      buttons: {
+        back: {
+          text: 'Wstecz',
+          isHidden: true,
+          action: function() {
+            this.$content.find( '.assign-step-1' ).show();
+            this.$content.find( '.assign-step-2' ).hide();
+            this.$$back.hide();
+            this.$$next.show();
+            this.$$save.hide();
+            return false;
+          }
+        },
+        next: {
+          text: 'Dalej',
+          btnClass: 'btn-blue',
+          action: function() {
+            var $content = this.$content;
+            var campaign_mode = $content.find( 'input[name="campaign_mode"]:checked' ).val();
+            var campaign_id = $content.find( '.assign-campaign-id' ).val();
+            var campaign_name = $.trim( $content.find( '.assign-campaign-name' ).val() );
+            var campaign_daily_budget = parseFloat( $content.find( '.assign-campaign-budget' ).val() || '0' );
+            var default_cpc = parseFloat( $content.find( '.assign-default-cpc' ).val() || '0' );
+
+            if ( campaign_mode === 'existing' && !campaign_id )
+            {
+              $.alert( 'Wybierz kampanię.' );
+              return false;
+            }
+
+            if ( campaign_mode === 'new' && !campaign_name )
+            {
+              $.alert( 'Podaj nazwę nowej kampanii.' );
+              return false;
+            }
+
+            if ( campaign_mode === 'new' && ( isNaN( campaign_daily_budget ) || campaign_daily_budget <= 0 ) )
+            {
+              $.alert( 'Podaj poprawny budżet dzienny (większy od 0).' );
+              return false;
+            }
+
+            if ( campaign_mode === 'new' && ( isNaN( default_cpc ) || default_cpc <= 0 ) )
+            {
+              $.alert( 'Podaj poprawne domyślne CPC (większe od 0).' );
+              return false;
+            }
+
+            this.$content.find( '.assign-step-1' ).hide();
+            this.$content.find( '.assign-step-2' ).show();
+            this.$$back.show();
+            this.$$next.hide();
+            this.$$save.show();
+            return false;
+          }
+        },
+        save: {
+          text: 'Zapisz',
+          btnClass: 'btn-green',
+          isHidden: true,
+          action: function() {
+            var jc = this;
+            var $content = jc.$content;
+
+            var campaign_mode = $content.find( 'input[name="campaign_mode"]:checked' ).val();
+            var campaign_id = $content.find( '.assign-campaign-id' ).val() || '';
+            var campaign_name = $.trim( $content.find( '.assign-campaign-name' ).val() );
+            var campaign_daily_budget = parseFloat( $content.find( '.assign-campaign-budget' ).val() || '0' );
+            var default_cpc = parseFloat( $content.find( '.assign-default-cpc' ).val() || '0' );
+
+            var ad_group_mode = $content.find( 'input[name="ad_group_mode"]:checked' ).val();
+            var ad_group_id = $content.find( '.assign-ad-group-id' ).val() || '';
+            var ad_group_name = $.trim( $content.find( '.assign-ad-group-name' ).val() );
+
+            if ( campaign_mode === 'existing' && !campaign_id )
+            {
+              $.alert( 'Wybierz kampanię.' );
+              return false;
+            }
+
+            if ( campaign_mode === 'new' && !campaign_name )
+            {
+              $.alert( 'Podaj nazwę nowej kampanii.' );
+              return false;
+            }
+
+            if ( campaign_mode === 'new' && ( isNaN( campaign_daily_budget ) || campaign_daily_budget <= 0 ) )
+            {
+              $.alert( 'Podaj poprawny budżet dzienny (większy od 0).' );
+              return false;
+            }
+
+            if ( campaign_mode === 'new' && ( isNaN( default_cpc ) || default_cpc <= 0 ) )
+            {
+              $.alert( 'Podaj poprawne domyślne CPC (większe od 0).' );
+              return false;
+            }
+
+            if ( ad_group_mode === 'existing' && !ad_group_id )
+            {
+              $.alert( 'Wybierz grupę reklam.' );
+              return false;
+            }
+
+            if ( ad_group_mode === 'new' && !ad_group_name )
+            {
+              $.alert( 'Podaj nazwę nowej grupy reklam.' );
+              return false;
+            }
+
+            jc.showLoading( true );
+
+            $.ajax({
+              url: '/products/assign_product_scope/',
+              type: 'POST',
+              dataType: 'json',
+              data: {
+                product_id: product_id,
+                campaign_mode: campaign_mode,
+                campaign_id: campaign_id,
+                campaign_name: campaign_name,
+                campaign_daily_budget: campaign_daily_budget,
+                default_cpc: default_cpc,
+                ad_group_mode: ad_group_mode,
+                ad_group_id: ad_group_id,
+                ad_group_name: ad_group_name
+              },
+              success: function( res ) {
+                jc.hideLoading();
+
+                if ( res && res.status === 'ok' )
+                {
+                  jc.close();
+                  reload_products_table();
+                  show_toast( 'Produkt został przypisany do kampanii i grupy reklam.', 'success' );
+                }
+                else
+                {
+                  show_toast( ( res && res.message ) ? res.message : 'Nie udało się zapisać przypisania.', 'error' );
+                }
+              },
+              error: function() {
+                jc.hideLoading();
+                show_toast( 'Błąd połączenia podczas przypisywania produktu.', 'error' );
+              }
+            });
+
+            return false;
+          }
+        },
+        cancel: {
+          text: 'Anuluj'
+        }
+      },
+      onContentReady: function() {
+        var jc = this;
+        var $content = jc.$content;
+        var $campaignModeInputs = $content.find( 'input[name="campaign_mode"]' );
+        var $campaignSelect = $content.find( '.assign-campaign-id' );
+        var $campaignName = $content.find( '.assign-campaign-name' );
+        var $newCampaignOptions = $content.find( '.assign-new-campaign-options' );
+
+        var $adGroupModeInputs = $content.find( 'input[name="ad_group_mode"]' );
+        var $adGroupSelect = $content.find( '.assign-ad-group-id' );
+        var $adGroupName = $content.find( '.assign-ad-group-name' );
+
+        function loadCampaignsForStep()
+        {
+          $campaignSelect.empty().append( '<option value="">— wybierz kampanię —</option>' );
+
+          return $.ajax({
+            url: '/products/get_campaigns_list/client_id=' + client_id,
+            type: 'GET',
+            dataType: 'json'
+          }).done( function( res ) {
+            ( res.campaigns || [] ).forEach( function( row ) {
+              $campaignSelect.append( '<option value="' + row.id + '">' + escape_html( row.campaign_name || '' ) + '</option>' );
+            } );
+          } );
+        }
+
+        function loadAdGroupsForStep( campaign_id )
+        {
+          $adGroupSelect.empty().append( '<option value="">— wybierz grupę reklam —</option>' );
+
+          if ( !campaign_id )
+          {
+            return;
+          }
+
+          $.ajax({
+            url: '/products/get_campaign_ad_groups/campaign_id=' + campaign_id,
+            type: 'GET',
+            dataType: 'json',
+            success: function( res ) {
+              ( res.ad_groups || [] ).forEach( function( row ) {
+                $adGroupSelect.append( '<option value="' + row.id + '">' + escape_html( row.ad_group_name || '' ) + '</option>' );
+              } );
+            }
+          });
+        }
+
+        function toggleCampaignMode()
+        {
+          var mode = $campaignModeInputs.filter( ':checked' ).val();
+          var isExisting = mode === 'existing';
+
+          $campaignSelect.toggle( isExisting );
+          $campaignName.toggle( !isExisting );
+          $newCampaignOptions.toggle( !isExisting );
+
+          if ( isExisting )
+          {
+            $adGroupModeInputs.filter( '[value="existing"]' ).prop( 'disabled', false );
+            loadAdGroupsForStep( $campaignSelect.val() || '' );
+          }
+          else
+          {
+            $adGroupModeInputs.filter( '[value="existing"]' ).prop( 'disabled', true );
+            $adGroupModeInputs.filter( '[value="new"]' ).prop( 'checked', true );
+            $adGroupSelect.empty().append( '<option value="">— wybierz grupę reklam —</option>' );
+          }
+
+          toggleAdGroupMode();
+        }
+
+        function toggleAdGroupMode()
+        {
+          var mode = $adGroupModeInputs.filter( ':checked' ).val();
+          var isExisting = mode === 'existing';
+
+          $adGroupSelect.toggle( isExisting );
+          $adGroupName.toggle( !isExisting );
+        }
+
+        $campaignModeInputs.on( 'change', toggleCampaignMode );
+        $adGroupModeInputs.on( 'change', toggleAdGroupMode );
+
+        $campaignSelect.on( 'change', function() {
+          if ( $campaignModeInputs.filter( ':checked' ).val() === 'existing' )
+          {
+            loadAdGroupsForStep( $( this ).val() || '' );
+          }
+        } );
+
+        loadCampaignsForStep().always( function() {
+          toggleCampaignMode();
+        } );
+      }
+    });
+  });
+
   $( 'body' ).on( 'change', '#client_id', function()
   {
     var client_id = $( this ).val() || '';
@@ -516,6 +774,102 @@ $( function()
     } );
   });
 
+  $( 'body' ).on( 'click', '.view-merchant-logs', function( e )
+  {
+    e.preventDefault();
+
+    var product_id = $( this ).attr( 'product_id' );
+
+    $.confirm({
+      title: 'Logi synchronizacji Merchant (produkt #' + product_id + ')',
+      content: '<div class="merchant-logs-wrap" style="max-height:460px;overflow:auto">Ładowanie logów...</div>',
+      useBootstrap: false,
+      boxWidth: '1100px',
+      theme: 'modern',
+      buttons: {
+        close: {
+          text: 'Zamknij',
+          btnClass: 'btn-blue'
+        }
+      },
+      onContentReady: function()
+      {
+        var jc = this;
+        var $wrap = jc.$content.find( '.merchant-logs-wrap' );
+
+        $.ajax({
+          url: '/products/get_product_merchant_sync_logs/',
+          type: 'POST',
+          data: { product_id: product_id, limit: 100 },
+          success: function( response )
+          {
+            var data;
+
+            try
+            {
+              data = JSON.parse( response );
+            }
+            catch ( err )
+            {
+              $wrap.html( '<div class="text-danger">Nie udało się odczytać odpowiedzi serwera.</div>' );
+              return;
+            }
+
+            if ( data.status !== 'ok' )
+            {
+              $wrap.html( '<div class="text-danger">' + escape_html( data.message || 'Błąd pobierania logów.' ) + '</div>' );
+              return;
+            }
+
+            if ( !data.logs || !data.logs.length )
+            {
+              $wrap.html( '<div class="text-muted">Brak logów synchronizacji dla tego produktu.</div>' );
+              return;
+            }
+
+            var rows_html = '';
+            $.each( data.logs, function( _, log ) {
+              var status_class = log.sync_status === 'success'
+                ? 'text-success'
+                : ( log.sync_status === 'error' ? 'text-danger' : 'text-muted' );
+
+              rows_html += '<tr>' +
+                '<td>' + escape_html( log.date_add || '' ) + '</td>' +
+                '<td>' + escape_html( log.field_name || '' ) + '</td>' +
+                '<td class="' + status_class + '"><b>' + escape_html( log.sync_status || '' ) + '</b></td>' +
+                '<td>' + escape_html( log.sync_source || '' ) + '</td>' +
+                '<td>' + escape_html( log.old_value || '' ) + '</td>' +
+                '<td>' + escape_html( log.new_value || '' ) + '</td>' +
+                '<td>' + escape_html( log.error_message || '' ) + '</td>' +
+              '</tr>';
+            } );
+
+            $wrap.html(
+              '<table class="table table-sm table-bordered table-striped" style="font-size:12px;">' +
+                '<thead>' +
+                  '<tr>' +
+                    '<th style="min-width:140px;">Data</th>' +
+                    '<th style="min-width:120px;">Pole</th>' +
+                    '<th style="min-width:90px;">Status</th>' +
+                    '<th style="min-width:110px;">Źródło</th>' +
+                    '<th style="min-width:180px;">Stara wartość</th>' +
+                    '<th style="min-width:180px;">Nowa wartość</th>' +
+                    '<th style="min-width:220px;">Błąd</th>' +
+                  '</tr>' +
+                '</thead>' +
+                '<tbody>' + rows_html + '</tbody>' +
+              '</table>'
+            );
+          },
+          error: function()
+          {
+            $wrap.html( '<div class="text-danger">Nie udało się pobrać logów synchronizacji.</div>' );
+          }
+        });
+      }
+    });
+  });
+
   // Usuwanie produktu
   $( 'body' ).on( 'click', '.delete-product', function( e )
   {
@@ -584,7 +938,34 @@ $( function()
     $.ajax({
       url: '/products/save_custom_label_4/',
       type: 'POST',
-      data: { product_id: product_id, custom_label_4: custom_label_4 }
+      data: { product_id: product_id, custom_label_4: custom_label_4 },
+      success: function( response )
+      {
+        var data;
+
+        try
+        {
+          data = JSON.parse( response );
+        }
+        catch ( e )
+        {
+          show_toast( 'Custom Label 4: nieprawidłowa odpowiedź serwera.', 'error' );
+          return;
+        }
+
+        if ( data.status === 'ok' )
+        {
+          show_toast( 'Custom Label 4 zapisany.', 'success' );
+        }
+        else
+        {
+          show_toast( 'Custom Label 4: zapis nie powiódł się.', 'error' );
+        }
+      },
+      error: function()
+      {
+        show_toast( 'Custom Label 4: błąd połączenia podczas zapisu.', 'error' );
+      }
     });
   });
 
@@ -673,6 +1054,7 @@ $( function()
                 jc.hideLoading();
                 if ( data.status == 'ok' ) {
                   jc.close();
+                  reload_products_table();
                   show_toast( 'Dane produktu zostały zapisane.', 'success' );
                 } else {
                   show_toast( 'Błąd: ' + response, 'error' );
@@ -789,10 +1171,18 @@ $( function()
                 }
                 if ( data.warning ) {
                   show_toast( providerLabel + ': ' + data.warning, 'error' );
-                } else if ( data.page_fetched ) {
-                  show_toast( providerLabel + ': Sugestia wygenerowana z treścią strony produktu', 'success' );
                 } else {
-                  show_toast( providerLabel + ': Sugestia wygenerowana', 'success' );
+                  var successMessage = data.page_fetched
+                    ? providerLabel + ': Sugestia wygenerowana z treścią strony produktu'
+                    : providerLabel + ': Sugestia wygenerowana';
+
+                  if ( ( field == 'title' || field == 'description' ) && data.keyword_planner_terms_used ) {
+                    var kwCount = parseInt( data.keyword_planner_terms_count || 0, 10 );
+                    var kwLabel = kwCount > 0 ? ' (' + kwCount + ' fraz)' : '';
+                    successMessage += '; użyto fraz z Keyword Planner' + kwLabel;
+                  }
+
+                  show_toast( successMessage, 'success' );
                 }
               } else {
                 show_toast( providerLabel + ': ' + ( data.message || 'Wystąpił błąd AI.' ), 'error' );