Add controllers for models

- Add REST API controllers for all models
- Controllers use Microdot subroutes
- Support CRUD operations via HTTP endpoints
- Controllers: preset, profile, group, sequence, tab, palette

src/controllers/preset.py

@@ -0,0 +1,49 @@
+from microdot import Microdot
+from models.preset import Preset
+import json
+
+controller = Microdot()
+presets = Preset()
+
+@controller.get('')
+async def list_presets(request):
+    """List all presets."""
+    return json.dumps(presets), 200, {'Content-Type': 'application/json'}
+
+@controller.get('/<id>')
+async def get_preset(request, id):
+    """Get a specific preset by ID."""
+    preset = presets.read(id)
+    if preset:
+        return json.dumps(preset), 200, {'Content-Type': 'application/json'}
+    return json.dumps({"error": "Preset not found"}), 404
+
+@controller.post('')
+async def create_preset(request):
+    """Create a new preset."""
+    try:
+        data = request.json
+        preset_id = presets.create()
+        if presets.update(preset_id, data):
+            return json.dumps(presets.read(preset_id)), 201, {'Content-Type': 'application/json'}
+        return json.dumps({"error": "Failed to create preset"}), 400
+    except Exception as e:
+        return json.dumps({"error": str(e)}), 400
+
+@controller.put('/<id>')
+async def update_preset(request, id):
+    """Update an existing preset."""
+    try:
+        data = request.json
+        if presets.update(id, data):
+            return json.dumps(presets.read(id)), 200, {'Content-Type': 'application/json'}
+        return json.dumps({"error": "Preset not found"}), 404
+    except Exception as e:
+        return json.dumps({"error": str(e)}), 400
+
+@controller.delete('/<id>')
+async def delete_preset(request, id):
+    """Delete a preset."""
+    if presets.delete(id):
+        return json.dumps({"message": "Preset deleted successfully"}), 200
+    return json.dumps({"error": "Preset not found"}), 404