import json
import wifi
import ubinascii
import machine

class Settings(dict):
    SETTINGS_FILE = "/settings.json"

    def __init__(self):
        super().__init__()
        self.load()  # Load settings from file during initialization

    def set_defaults(self):
        self["num_leds"] = 50
        self["pattern"] = "on"
        self["color1"] = "#00ff00"
        self["color2"] = "#ff0000"
        self["delay"] = 100
        self["brightness"] = 10
        self["name"] = f"led-{ubinascii.hexlify(wifi.get_mac()).decode()}"
        self["ap_password"] = ""

    def save(self):
        try:
            j = json.dumps(self)
            with open(self.SETTINGS_FILE, 'w') as file:
                file.write(j)
            print("Settings saved successfully.")
        except Exception as e:
            print(f"Error saving settings: {e}")

    def load(self):
        try:
            with open(self.SETTINGS_FILE, 'r') as file:
                loaded_settings = json.load(file)
            self.update(loaded_settings)
            print("Settings loaded successfully.")
        except Exception as e:
            print(f"Error loading settings")
            self.set_defaults()

# Example usage
def main():
    settings = Settings()
    print(f"Number of LEDs: {settings['num_leds']}")
    settings['num_leds'] = 100
    print(f"Updated number of LEDs: {settings['num_leds']}")
    settings.save()

    # Create a new Settings object to test loading
    new_settings = Settings()
    print(f"Loaded number of LEDs: {new_settings['num_leds']}")
    print(settings)

def set_settings(raw_json, settings, patterns):
    try:
        data = json.loads(raw_json)
        print(data)
        for key, value in data.items():
            print(key, value)
            if key == "color1":
                patterns.set_color1(tuple(int(value[i:i+2], 16) for i in (1, 3, 5)))  # Convert hex to RGB
            elif key == "color2":
                patterns.set_color2(tuple(int(value[i:i+2], 16) for i in (1, 3, 5)))  # Convert hex to RGB
            elif key == "num_leds":
                patterns.update_num_leds(4, value)
            elif key ==  "pattern":
                if not patterns.select(value):
                    return "Pattern doesn't exist", 400
            elif key == "delay":
                delay = int(data["delay"])
                patterns.set_delay(delay)
            elif key == "brightness":
                brightness = int(data["brightness"])
                patterns.set_brightness(brightness)
            elif key == "name":
                settings[key] = value
                settings.save()
                machine.reset()
            elif key == "sync":
                patterns.sync()
                return "OK", 200
            else:
                return "Invalid key", 400
            settings[key] = value
            settings.save()
            return "OK", 200

    except (KeyError, ValueError):
        return "Bad request", 400

# Run the example
if __name__ == "__main__":
    main()