SleepManager.h

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#pragma once
 
#include "cdc_hal/ISleepController.h"
#include <cstdint>
 
// Forward declarations
namespace cdc::ui {
class LockScreenView;
}
namespace cdc::hal {
class IPowerManager;
}
 
namespace cdc::ui {
 
// Light sleep timeout (seconds after which lock screen enters light sleep)
static constexpr uint32_t LIGHT_SLEEP_TIMEOUT_MS = 120 * 1000;
 
// Maximum number of sleep inhibitors
static constexpr uint8_t MAX_SLEEP_INHIBITORS = 8;
 
// Light sleep management for lock screen
class SleepManager {
public:
    static SleepManager& instance();
 
    // Initialize with dependencies
    void init(hal::ISleepController* sleep, hal::IPowerManager* power, LockScreenView* lockScreen);
 
    // Check if should enter sleep (call from ui_process when on lock screen)
    void checkLockScreenSleep(uint32_t nowMs);
 
    // Reset the sleep timer (on key press or activity)
    void resetTimer(uint32_t nowMs);
 
    // Reset timer to current time
    void resetTimer();
 
    // Check if currently in light sleep
    bool isInLightSleep() const { return inLightSleep_; }
 
    // === Sleep Inhibitor API ===

    bool addSleepInhibitor(const char* reason);

    bool removeSleepInhibitor(const char* reason);

    bool isSleepInhibited() const { return inhibitorCount_ > 0; }

    uint8_t getInhibitorCount() const { return inhibitorCount_; }
 
private:
    SleepManager() = default;
 
    void enterLockScreenSleep();
    bool handleWakeup();
    void updateCaffeinatedIcon();
 
    hal::ISleepController* sleep_ = nullptr;
    hal::IPowerManager* power_ = nullptr;
    LockScreenView* lockScreen_ = nullptr;
 
    uint32_t lockScreenEnteredMs_ = 0;
    bool inLightSleep_ = false;
 
    // Sleep inhibitors
    const char* inhibitors_[MAX_SLEEP_INHIBITORS] = {};
    uint8_t inhibitorCount_ = 0;
};
 
} // namespace cdc::ui