Add preset persistence and startup default.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/main.py

@@ -10,6 +10,11 @@ settings = Settings()
 print(settings)
 
 presets = Presets(settings["led_pin"], settings["num_leds"])
+presets.load()
+startup_preset = settings.get("startup_preset")
+if startup_preset:
+    presets.select(startup_preset)
+    print(f"Selected startup preset: {startup_preset}")
 
 wdt = WDT(timeout=10000)
 wdt.feed()
@@ -31,7 +36,7 @@ while True:
         # Only handle messages with the expected version.
         if data.get("v") != "1":
             continue
-        print(data)
+        # print(data)
         # Global brightness (0–255) for this device
         if "b" in data:
             try:
@@ -39,11 +44,12 @@ while True:
             except (TypeError, ValueError):
                 pass
         if "presets" in data:
-            for name, preset_data in data["presets"].items():
+            for id, preset_data in data["presets"].items():
                 # Convert hex color strings to RGB tuples and reorder based on device color order
                 if "c" in preset_data:
                     preset_data["c"] = convert_and_reorder_colors(preset_data["c"], settings)
-                presets.edit(name, preset_data)
+                presets.edit(id, preset_data)
+                print(f"Edited preset {id}: {preset_data.get('name', '')}")
         if settings.get("name") in data.get("select", {}):
             select_list = data["select"][settings.get("name")]
             # Select value is always a list: ["preset_name"] or ["preset_name", step]
@@ -51,3 +57,9 @@ while True:
                 preset_name = select_list[0]
                 step = select_list[1] if len(select_list) > 1 else None
                 presets.select(preset_name, step=step)
+        if "default" in data:
+            settings["startup_preset"] = data["default"]
+            print(f"Set startup preset to: {data['default']}")
+            settings.save()
+        if "save" in data:
+            presets.save()