Digital.hpp

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#pragma once
 
#include <memory>
#include <vector>
 
#include "hal/PortRegistry.hpp"
 
namespace libstp::hal::digital
{
    class DigitalSensor
    {
#ifdef SAFETY_CHECKS_ENABLED
        static inline detail::PortRegistry registry_{};
        static void registerDigitalPort(int port);
        static void unregisterDigitalPort(int port);
#endif
    public:
        int port;

        explicit DigitalSensor(int port);
 
        virtual ~DigitalSensor();

        virtual bool read() const;
    };

    class ButtonGroup final : public DigitalSensor
    {
    public:
        explicit ButtonGroup(std::vector<int> ports);

        bool read() const override;

        const std::vector<int>& ports() const { return ports_; }
 
    private:
        std::vector<int> ports_;
        // Owns sensors for ports_[1..]; ports_[0] is the inherited base.
        std::vector<std::unique_ptr<DigitalSensor>> extra_;
    };
}