EntryGateController.h

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#pragma once
 
#include "IEventBus.h"
#include "IGpioInput.h"
#include "IGate.h"
#include "ITicketService.h"
#include "freertos/FreeRTOS.h"
#include "freertos/timers.h"
#include <memory>
 
enum class EntryGateState {
    Idle,
    CheckingCapacity,
    IssuingTicket,
    OpeningBarrier,
    WaitingForCar,
    CarPassing,
    WaitingBeforeClose,
    ClosingBarrier
};
 
class EntryGateController {
  public:
    EntryGateController(
        IEventBus& eventBus,
        IGpioInput& button,
        IGate& gate,
        ITicketService& ticketService,
        uint32_t barrierTimeoutMs = 2000);
 
    ~EntryGateController();
 
    // Prevent copying
    EntryGateController(const EntryGateController&) = delete;
    EntryGateController& operator=(const EntryGateController&) = delete;
 
    [[nodiscard]] EntryGateState getState() const { return m_state; }
 
    [[nodiscard]] const char* getStateString() const;
 
    [[nodiscard]] IGate& getGate() { return *m_gate; }
 
    [[nodiscard]] IGpioInput& getButton() { return *m_button; }
 
    void setupGpioInterrupts();
 
    void reset();
 
#ifdef UNIT_TEST
    // Test helpers to simulate timer expirations without FreeRTOS timers
    void TEST_forceBarrierTimeout() {
        onBarrierTimeout();
    }
#endif
 
  private:
    void onButtonPressed(const Event& event);
    void onLightBarrierBlocked(const Event& event);
    void onLightBarrierCleared(const Event& event);
    void onBarrierTimeout();
 
    void setState(EntryGateState newState);
    void startBarrierTimer();
    void stopBarrierTimer();
 
    static void barrierTimerCallback(TimerHandle_t xTimer);
 
    IEventBus& m_eventBus;
    IGpioInput* m_button;
    IGate* m_gate;
    ITicketService& m_ticketService;
 
    EntryGateState m_state;
    uint32_t m_barrierTimeoutMs;
    uint32_t m_currentTicketId;
    TimerHandle_t m_barrierTimer;
};