Add clone support for scene and automation cards, update sync clock descriptions

- Scene clone: opens capture modal with prefilled name/description/targets
  instead of server-side duplication; removed backend clone endpoint
- Automation clone: opens editor with prefilled conditions, scene, logic,
  deactivation mode (webhook tokens stripped for uniqueness)
- Updated sync clock i18n descriptions to reflect speed-only-on-clock model
- Added entity card clone pattern documentation to server/CLAUDE.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/CLAUDE.md

@@ -130,6 +130,31 @@ After restarting the server with new code:
 
 ## Frontend UI Patterns
 
+### Entity Cards
+
+All entity cards (devices, targets, CSS sources, streams, scenes, automations, etc.) **must support clone functionality**. Clone buttons use the `ICON_CLONE` (📋) icon in `.card-actions`.
+
+**Clone pattern**: Clone must open the entity's add/create modal with fields prefilled from the cloned item. It must **never** silently create a duplicate — the user should review and confirm.
+
+Implementation:
+
+1. Export a `cloneMyEntity(id)` function that fetches (or finds in cache) the entity data
+2. Call the add/create modal function, passing the entity data as `cloneData`
+3. In the modal opener, detect clone mode (no ID + cloneData present) and prefill all fields
+4. Append `' (Copy)'` to the name
+5. Set the modal title to the "add" variant (not "edit")
+6. The save action creates a new entity (POST), not an update (PUT)
+
+```javascript
+export async function cloneMyEntity(id) {
+    const entity = myCache.data.find(e => e.id === id);
+    if (!entity) return;
+    showMyEditor(null, entity);  // null id = create mode, entity = cloneData
+}
+```
+
+Register the clone function in `app.js` window exports so inline `onclick` handlers can call it.
+
 ### Modal Dialogs
 
 **IMPORTANT**: All modal dialogs must follow these standards for consistent UX:

server/src/wled_controller/api/routes/scene_presets.py

@@ -164,27 +164,6 @@ async def delete_scene_preset(
         raise HTTPException(status_code=404, detail=str(e))
 
 
-# ===== Clone =====
-
-@router.post(
-    "/api/v1/scene-presets/{preset_id}/clone",
-    response_model=ScenePresetResponse,
-    tags=["Scene Presets"],
-    status_code=201,
-)
-async def clone_scene_preset(
-    preset_id: str,
-    _auth: AuthRequired,
-    store: ScenePresetStore = Depends(get_scene_preset_store),
-):
-    """Duplicate a scene preset with all its stored target snapshots."""
-    try:
-        cloned = store.clone_preset(preset_id)
-    except ValueError as e:
-        raise HTTPException(status_code=404, detail=str(e))
-
-    return _preset_to_response(cloned)
-
 
 # ===== Recapture =====
 

server/src/wled_controller/static/js/app.js

@@ -80,7 +80,7 @@ import {
 import {
     loadAutomations, openAutomationEditor, closeAutomationEditorModal,
     saveAutomationEditor, addAutomationCondition,
-    toggleAutomationEnabled, deleteAutomation, copyWebhookUrl,
+    toggleAutomationEnabled, cloneAutomation, deleteAutomation, copyWebhookUrl,
     expandAllAutomationSections, collapseAllAutomationSections,
 } from './features/automations.js';
 import {
@@ -315,6 +315,7 @@ Object.assign(window, {
     saveAutomationEditor,
     addAutomationCondition,
     toggleAutomationEnabled,
+    cloneAutomation,
     deleteAutomation,
     copyWebhookUrl,
     expandAllAutomationSections,

server/src/wled_controller/static/js/features/automations.js

@@ -185,6 +185,7 @@ function createAutomationCard(automation, sceneMap = new Map()) {
             </div>
             <div class="stream-card-props">${condPills}</div>`,
         actions: `
+                <button class="btn btn-icon btn-secondary" onclick="cloneAutomation('${automation.id}')" title="${t('common.clone')}">${ICON_CLONE}</button>
                 <button class="btn btn-icon btn-secondary" onclick="openAutomationEditor('${automation.id}')" title="${t('automations.edit')}">${ICON_SETTINGS}</button>
                 <button class="btn btn-icon ${automation.enabled ? 'btn-warning' : 'btn-success'}" onclick="toggleAutomationEnabled('${automation.id}', ${!automation.enabled})" title="${automation.enabled ? t('automations.action.disable') : t('automations.status.active')}">
                     ${automation.enabled ? ICON_PAUSE : ICON_START}
@@ -192,7 +193,7 @@ function createAutomationCard(automation, sceneMap = new Map()) {
     });
 }
 
-export async function openAutomationEditor(automationId) {
+export async function openAutomationEditor(automationId, cloneData) {
     const modal = document.getElementById('automation-editor-modal');
     const titleEl = document.getElementById('automation-editor-title');
     const idInput = document.getElementById('automation-editor-id');
@@ -241,6 +242,26 @@ export async function openAutomationEditor(automationId) {
             showToast(e.message, 'error');
             return;
         }
+    } else if (cloneData) {
+        // Clone mode — create with prefilled data
+        titleEl.innerHTML = `${ICON_AUTOMATION} ${t('automations.add')}`;
+        idInput.value = '';
+        nameInput.value = (cloneData.name || '') + ' (Copy)';
+        enabledInput.checked = cloneData.enabled !== false;
+        logicSelect.value = cloneData.condition_logic || 'or';
+
+        // Clone conditions (strip webhook tokens — they must be unique)
+        for (const c of (cloneData.conditions || [])) {
+            const clonedCond = { ...c };
+            if (clonedCond.condition_type === 'webhook') delete clonedCond.token;
+            addAutomationConditionRow(clonedCond);
+        }
+
+        _initSceneSelector('automation-scene', cloneData.scene_preset_id);
+
+        document.getElementById('automation-deactivation-mode').value = cloneData.deactivation_mode || 'none';
+        _onDeactivationModeChange();
+        _initSceneSelector('automation-fallback-scene', cloneData.deactivation_scene_preset_id);
     } else {
         titleEl.innerHTML = `${ICON_AUTOMATION} ${t('automations.add')}`;
         idInput.value = '';
@@ -729,6 +750,18 @@ export function copyWebhookUrl(btn) {
     });
 }
 
+export async function cloneAutomation(automationId) {
+    try {
+        const resp = await fetchWithAuth(`/automations/${automationId}`);
+        if (!resp.ok) throw new Error('Failed to load automation');
+        const automation = await resp.json();
+        openAutomationEditor(null, automation);
+    } catch (e) {
+        if (e.isAuth) return;
+        showToast(t('automations.error.clone_failed'), 'error');
+    }
+}
+
 export async function deleteAutomation(automationId, automationName) {
     const msg = t('automations.delete.confirm').replace('{name}', automationName);
     const confirmed = await showConfirm(msg);

server/src/wled_controller/static/js/features/scene-presets.js

@@ -308,21 +308,49 @@ export async function recaptureScenePreset(presetId) {
 // ===== Clone =====
 
 export async function cloneScenePreset(presetId) {
-    try {
+    const preset = scenePresetsCache.data.find(p => p.id === presetId);
-        const resp = await fetchWithAuth(`/scene-presets/${presetId}/clone`, {
+    if (!preset) return;
-            method: 'POST',
+
-        });
+    // Open the capture modal in create mode, prefilled from the cloned preset
-        if (resp.ok) {
+    _editingId = null;
-            showToast(t('scenes.cloned'), 'success');
+    document.getElementById('scene-preset-editor-id').value = '';
-            _reloadScenesTab();
+    document.getElementById('scene-preset-editor-name').value = (preset.name || '') + ' (Copy)';
-        } else {
+    document.getElementById('scene-preset-editor-description').value = preset.description || '';
-            const err = await resp.json().catch(() => ({}));
+    document.getElementById('scene-preset-editor-error').style.display = 'none';
-            showToast(err.detail || t('scenes.error.clone_failed'), 'error');
+
-        }
+    const titleEl = document.querySelector('#scene-preset-editor-title span[data-i18n]');
-    } catch (error) {
+    if (titleEl) { titleEl.setAttribute('data-i18n', 'scenes.add'); titleEl.textContent = t('scenes.add'); }
-        if (error.isAuth) return;
+
-        showToast(t('scenes.error.clone_failed'), 'error');
+    // Fetch targets and populate selector, then pre-add the cloned preset's targets
+    const selectorGroup = document.getElementById('scene-target-selector-group');
+    const targetList = document.getElementById('scene-target-list');
+    if (selectorGroup && targetList) {
+        selectorGroup.style.display = '';
+        targetList.innerHTML = '';
+        try {
+            const resp = await fetchWithAuth('/picture-targets');
+            if (resp.ok) {
+                const data = await resp.json();
+                _allTargets = data.targets || [];
+
+                // Pre-add targets from the cloned preset
+                const clonedTargetIds = (preset.targets || []).map(pt => pt.target_id || pt.id);
+                for (const tid of clonedTargetIds) {
+                    const tgt = _allTargets.find(t => t.id === tid);
+                    if (!tgt) continue;
+                    const item = document.createElement('div');
+                    item.className = 'scene-target-item';
+                    item.dataset.targetId = tid;
+                    item.innerHTML = `<span>${escapeHtml(tgt.name)}</span><button type="button" class="btn-remove-condition" onclick="removeSceneTarget(this)" title="Remove">&#x2715;</button>`;
+                    targetList.appendChild(item);
+                }
+                _refreshTargetSelect();
+            }
+        } catch { /* ignore */ }
     }
+
+    scenePresetModal.open();
+    scenePresetModal.snapshot();
 }
 
 // ===== Delete =====

server/src/wled_controller/static/locales/en.json

@@ -652,6 +652,7 @@
   "automations.created": "Automation created",
   "automations.deleted": "Automation deleted",
   "automations.error.name_required": "Name is required",
+  "automations.error.clone_failed": "Failed to clone automation",
   "scenes.title": "Scenes",
   "scenes.add": "Capture Scene",
   "scenes.edit": "Edit Scene",
@@ -1172,7 +1173,7 @@
   "sync_clock.name.placeholder": "Main Animation Clock",
   "sync_clock.name.hint": "A descriptive name for this synchronization clock",
   "sync_clock.speed": "Speed:",
-  "sync_clock.speed.hint": "Speed multiplier shared by all linked sources. 1.0 = normal speed.",
+  "sync_clock.speed.hint": "Animation speed multiplier for all linked sources. 1.0 = normal, 2.0 = double speed, 0.5 = half speed.",
   "sync_clock.description": "Description (optional):",
   "sync_clock.description.placeholder": "Optional description",
   "sync_clock.description.hint": "Optional notes about this clock's purpose",
@@ -1189,7 +1190,7 @@
   "sync_clock.paused": "Clock paused",
   "sync_clock.resumed": "Clock resumed",
   "sync_clock.reset_done": "Clock reset to zero",
-  "sync_clock.delete.confirm": "Delete this sync clock? Sources using it will revert to their own speed.",
+  "sync_clock.delete.confirm": "Delete this sync clock? Linked sources will lose synchronization and run at default speed.",
   "color_strip.clock": "Sync Clock:",
-  "color_strip.clock.hint": "Link to a sync clock for synchronized animation. When set, speed comes from the clock."
+  "color_strip.clock.hint": "Link to a sync clock to synchronize animation timing across sources. Speed is controlled on the clock."
 }

server/src/wled_controller/static/locales/ru.json

@@ -652,6 +652,7 @@
   "automations.created": "Автоматизация создана",
   "automations.deleted": "Автоматизация удалена",
   "automations.error.name_required": "Введите название",
+  "automations.error.clone_failed": "Не удалось клонировать автоматизацию",
   "scenes.title": "Сцены",
   "scenes.add": "Захватить сцену",
   "scenes.edit": "Редактировать сцену",
@@ -1172,7 +1173,7 @@
   "sync_clock.name.placeholder": "Основные часы анимации",
   "sync_clock.name.hint": "Описательное название для этих часов синхронизации",
   "sync_clock.speed": "Скорость:",
-  "sync_clock.speed.hint": "Множитель скорости, общий для всех привязанных источников. 1.0 = нормальная скорость.",
+  "sync_clock.speed.hint": "Множитель скорости анимации для всех привязанных источников. 1.0 = обычная, 2.0 = двойная, 0.5 = половинная.",
   "sync_clock.description": "Описание (необязательно):",
   "sync_clock.description.placeholder": "Необязательное описание",
   "sync_clock.description.hint": "Необязательные заметки о назначении этих часов",
@@ -1189,7 +1190,7 @@
   "sync_clock.paused": "Часы приостановлены",
   "sync_clock.resumed": "Часы возобновлены",
   "sync_clock.reset_done": "Часы сброшены на ноль",
-  "sync_clock.delete.confirm": "Удалить эти часы синхронизации? Источники, использующие их, вернутся к собственной скорости.",
+  "sync_clock.delete.confirm": "Удалить эти часы синхронизации? Привязанные источники потеряют синхронизацию и будут работать на скорости по умолчанию.",
   "color_strip.clock": "Часы синхронизации:",
-  "color_strip.clock.hint": "Привязка к часам синхронизации для синхронной анимации. При установке скорость берётся из часов."
+  "color_strip.clock.hint": "Привязка к часам для синхронизации анимации между источниками. Скорость управляется на часах."
 }

server/src/wled_controller/static/locales/zh.json

@@ -652,6 +652,7 @@
   "automations.created": "自动化已创建",
   "automations.deleted": "自动化已删除",
   "automations.error.name_required": "名称为必填项",
+  "automations.error.clone_failed": "克隆自动化失败",
   "scenes.title": "场景",
   "scenes.add": "捕获场景",
   "scenes.edit": "编辑场景",
@@ -1172,7 +1173,7 @@
   "sync_clock.name.placeholder": "主动画时钟",
   "sync_clock.name.hint": "此同步时钟的描述性名称",
   "sync_clock.speed": "速度：",
-  "sync_clock.speed.hint": "所有关联源共享的速度倍率。1.0 = 正常速度。",
+  "sync_clock.speed.hint": "所有关联源的动画速度倍率。1.0 = 正常，2.0 = 双倍，0.5 = 半速。",
   "sync_clock.description": "描述（可选）：",
   "sync_clock.description.placeholder": "可选描述",
   "sync_clock.description.hint": "关于此时钟用途的可选备注",
@@ -1189,7 +1190,7 @@
   "sync_clock.paused": "时钟已暂停",
   "sync_clock.resumed": "时钟已恢复",
   "sync_clock.reset_done": "时钟已重置为零",
-  "sync_clock.delete.confirm": "删除此同步时钟？使用它的源将恢复为各自的速度。",
+  "sync_clock.delete.confirm": "删除此同步时钟？关联的源将失去同步并以默认速度运行。",
   "color_strip.clock": "同步时钟：",
-  "color_strip.clock.hint": "关联同步时钟以实现同步动画。设置后，速度将来自时钟。"
+  "color_strip.clock.hint": "关联同步时钟以在多个源之间同步动画。速度在时钟上控制。"
 }

server/src/wled_controller/storage/scene_preset_store.py

@@ -117,25 +117,6 @@ class ScenePresetStore:
         logger.info(f"Recaptured scene preset: {preset_id}")
         return existing
 
-    def clone_preset(self, preset_id: str) -> ScenePreset:
-        """Duplicate an existing preset with a new ID and '(Copy)' suffix."""
-        if preset_id not in self._presets:
-            raise ValueError(f"Scene preset not found: {preset_id}")
-
-        source = self._presets[preset_id]
-        new_id = f"scene_{uuid.uuid4().hex[:8]}"
-        cloned = ScenePreset(
-            id=new_id,
-            name=f"{source.name} (Copy)",
-            description=source.description,
-            targets=[TargetSnapshot.from_dict(t.to_dict()) for t in source.targets],
-            order=source.order,
-        )
-        self._presets[new_id] = cloned
-        self._save()
-        logger.info(f"Cloned scene preset: {preset_id} -> {new_id}")
-        return cloned
-
     def delete_preset(self, preset_id: str) -> None:
         if preset_id not in self._presets:
             raise ValueError(f"Scene preset not found: {preset_id}")