/**
 * @file
 * @brief GPIO pin interface definitions.
 */
#ifndef STA_CORE_GPIO_PIN_HPP
#define STA_CORE_GPIO_PIN_HPP


namespace sta
{
    /**
     * @defgroup sta_core_gpio GPIO
     * @ingroup sta_core
     * @brief GPIO pins.
     * @{
     */


    /**
     * @brief GPIO pin state.
     */
    enum class GpioPinState
    {
        GPIO_LOW,
        GPIO_HIGH
    };

    /**
     * @brief Interface for GPIO pins.
     */
    class GpioPin
    {
    public:
        /**
         * @brief Set pin output state.
         *
         * @param state     Output state
         */
        virtual void setState(GpioPinState state) = 0;

        /**
         * @brief Set the GPIO pin to high.
         * 
         */
        void setHigh();

        /**
         * @brief Set the GPIO pin to low.
         * 
         */
        void setLow();

        /**
         * @brief Set the GPIO pin to the opposite of the current state.
         * 
         */
        void toggle();

        /**
         * @brief Get pin input state.
         *
         * @param state     Input state
         */
        virtual GpioPinState getState() = 0;
    };


    /** @} */
} // namespace sta


#endif // STA_CORE_GPIO_PIN_HPP