Add download client ordering and filtering to active downloads list

public/app.js

@@ -1,6 +1,8 @@
 // Copyright (c) 2026 Gordon Bolton. MIT License.
 let currentUser = null;
 let downloads = [];
+let downloadClients = []; // List of download clients from server (for ordering/filtering)
+let selectedDownloadClient = localStorage.getItem('sofarr-download-client') || 'all'; // Selected client filter
 let isAdmin = false;
 let showAll = false;
 let csrfToken = null; // double-submit CSRF token, sent as X-CSRF-Token on mutating requests
@@ -30,6 +32,7 @@ document.addEventListener('DOMContentLoaded', () => {
   initThemeSwitcher();
   initTabs();
   initHistoryControls();
+  initDownloadClientFilter();
   initWebhooks();
   loadAppVersion();
 
@@ -118,6 +121,11 @@ function startSSE() {
       currentUser = data.user;
       isAdmin = !!data.isAdmin;
       downloads = data.downloads;
+      // Store download clients and update filter dropdown
+      if (data.downloadClients) {
+        downloadClients = data.downloadClients;
+        updateDownloadClientFilter();
+      }
       document.getElementById('currentUser').textContent = currentUser || '-';
       renderDownloads();
       hideError();
@@ -352,28 +360,44 @@ function formatEpisodeInfo(episodes) {
 function renderDownloads() {
   const downloadsList = document.getElementById('downloads-list');
   const noDownloads = document.getElementById('no-downloads');
-  
-  if (downloads.length === 0) {
+
+  // Filter downloads by selected client
+  let filteredDownloads = downloads;
+  if (selectedDownloadClient !== 'all') {
+    filteredDownloads = downloads.filter(d => d.instanceId === selectedDownloadClient);
+  }
+
+  // Sort downloads by client order (matching the order in downloadClients)
+  if (downloadClients.length > 0) {
+    const clientOrder = new Map(downloadClients.map((c, idx) => [c.id, idx]));
+    filteredDownloads = [...filteredDownloads].sort((a, b) => {
+      const orderA = clientOrder.get(a.instanceId) ?? Infinity;
+      const orderB = clientOrder.get(b.instanceId) ?? Infinity;
+      return orderA - orderB;
+    });
+  }
+
+  if (filteredDownloads.length === 0) {
     noDownloads.style.display = 'block';
     downloadsList.innerHTML = '';
     return;
   }
-  
+
   noDownloads.style.display = 'none';
-  
+
   // Get existing cards
   const existingCards = new Map();
   downloadsList.querySelectorAll('.download-card').forEach(card => {
     existingCards.set(card.dataset.id, card);
   });
-  
+
   // Track which downloads we've processed
   const processedIds = new Set();
-  
-  downloads.forEach(download => {
+
+  filteredDownloads.forEach(download => {
     const id = download.title;
     processedIds.add(id);
-    
+
     const existingCard = existingCards.get(id);
     if (existingCard) {
       // Update existing card
@@ -384,7 +408,7 @@ function renderDownloads() {
       downloadsList.appendChild(card);
     }
   });
-  
+
   // Remove cards for downloads that no longer exist
   existingCards.forEach((card, id) => {
     if (!processedIds.has(id)) {
@@ -1022,6 +1046,51 @@ function initHistoryControls() {
   }
 }
 
+// =============================================================================
+// Download Client Filter
+// =============================================================================
+
+function initDownloadClientFilter() {
+  const filterSelect = document.getElementById('download-client-filter');
+  if (filterSelect) {
+    // Set initial value from localStorage
+    filterSelect.value = selectedDownloadClient;
+    filterSelect.addEventListener('change', () => {
+      selectedDownloadClient = filterSelect.value;
+      localStorage.setItem('sofarr-download-client', selectedDownloadClient);
+      renderDownloads();
+    });
+  }
+}
+
+function updateDownloadClientFilter() {
+  const filterSelect = document.getElementById('download-client-filter');
+  if (!filterSelect || downloadClients.length === 0) return;
+
+  // Save current selection
+  const currentValue = filterSelect.value;
+
+  // Clear existing options (except "All clients")
+  filterSelect.innerHTML = '<option value="all">All clients</option>';
+
+  // Add options for each download client
+  downloadClients.forEach(client => {
+    const option = document.createElement('option');
+    option.value = client.id;
+    option.textContent = client.name;
+    filterSelect.appendChild(option);
+  });
+
+  // Restore selection if still valid, otherwise default to 'all'
+  if (currentValue && (currentValue === 'all' || downloadClients.some(c => c.id === currentValue))) {
+    filterSelect.value = currentValue;
+  } else {
+    filterSelect.value = 'all';
+    selectedDownloadClient = 'all';
+    localStorage.setItem('sofarr-download-client', 'all');
+  }
+}
+
 function startHistoryRefresh() {
   stopHistoryRefresh();
   historyRefreshHandle = setInterval(() => loadHistory(), HISTORY_REFRESH_MS);