// Copyright 2021 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library fuchsia.lightsensor;

/// `Sensor` will return calibrated readings from a product-configured light
/// sensor.
@discoverable
protocol Sensor {
    /// Gets the current [LightSensorData]. Returns immediately on first call;
    /// subsequent calls return when the value changes.
    Watch() -> (struct {
        data LightSensorData;
    });
};

type LightSensorData = table {
    /// Light intensities measured by the light sensor.
    1: rgbc Rgbc;

    /// A weighted sum of the RGBC intensities.
    2: calculated_lux float32;

    /// The color temperature of the measured light.
    3: correlated_color_temperature float32;
};