#pragma once

#include <functional>

#include "event_bus.h"
#include "settings.h"
#include "toast_queue.h"

namespace roro {

// Presents Notifications as Toasts. Each Toast gets a short beep and LED flash (when Sound is on)
// as it appears, so a burst of Notifications alerts once per Toast, not all at once.
class Notifier {
   public:
    Notifier(EventBus& bus, const Settings& settings);
    void update(uint32_t nowMs);  // alerts for a newly shown Toast, ends the LED flash
    ToastQueue& toasts() { return toasts_; }

    // Called when a Toast appears, with the time it will disappear (e.g. to light the screen).
    std::function<void(uint32_t nowMs, uint32_t untilMs)> onShow;

   private:
    void alert(NotificationLevel level, uint32_t nowMs);

    const Settings& settings_;
    static constexpr uint32_t kToastMs = 3000;
    ToastQueue toasts_{kToastMs, 8};
    uint32_t ledOffAtMs_ = 0;
    bool ledOn_ = false;
    uint32_t alertedId_ = 0;
};

}  // namespace roro