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/palette.py

@@ -0,0 +1,51 @@
+from microdot import Microdot
+from models.pallet import Palette
+import json
+
+controller = Microdot()
+palettes = Palette()
+
+@controller.get('')
+async def list_palettes(request):
+    """List all palettes."""
+    return json.dumps(palettes), 200, {'Content-Type': 'application/json'}
+
+@controller.get('/<id>')
+async def get_palette(request, id):
+    """Get a specific palette by ID."""
+    palette = palettes.read(id)
+    if palette:
+        return json.dumps(palette), 200, {'Content-Type': 'application/json'}
+    return json.dumps({"error": "Palette not found"}), 404
+
+@controller.post('')
+async def create_palette(request):
+    """Create a new palette."""
+    try:
+        data = request.json or {}
+        name = data.get("name", "")
+        colors = data.get("colors", None)
+        palette_id = palettes.create(name, colors)
+        if data:
+            palettes.update(palette_id, data)
+        return json.dumps(palettes.read(palette_id)), 201, {'Content-Type': 'application/json'}
+    except Exception as e:
+        return json.dumps({"error": str(e)}), 400
+
+@controller.put('/<id>')
+async def update_palette(request, id):
+    """Update an existing palette."""
+    try:
+        data = request.json
+        if palettes.update(id, data):
+            return json.dumps(palettes.read(id)), 200, {'Content-Type': 'application/json'}
+        return json.dumps({"error": "Palette not found"}), 404
+    except Exception as e:
+        return json.dumps({"error": str(e)}), 400
+
+@controller.delete('/<id>')
+async def delete_palette(request, id):
+    """Delete a palette."""
+    if palettes.delete(id):
+        return json.dumps({"message": "Palette deleted successfully"}), 200
+    return json.dumps({"error": "Palette not found"}), 404