#include "watchos.h"
#include "Module_UI.h"
#include "Module_RTC.h"

class Task_Clock : public IRunnable, public IDrawable, public Task, public EventListener
{
	Module_UI* ui = nullptr;
	kernel_handle_t window_handle;
	bool read_rtc = false;
	byte hour, minute;

public:
	void start()
	{
		watchos::subscribe(this, WATCHOS_MODULE_RTC, WATCHOS_EVENT_TYPE_RTC_MINUTE);

		ui = static_cast<Module_UI*>(watchos::module(WATCHOS_MODULE_UI));

		window_handle = ui->createWindow(this, ui->getRoot());
		ui->setAbsolutePosition(window_handle, 0, 0, 200, 96);
	}
	void tick()
	{
		Event* e;
		while (this->hasEvent())
		{
			e = this->getEvent();

			if (e->source == WATCHOS_MODULE_RTC && e->event == WATCHOS_EVENT_TYPE_RTC_MINUTE)
			{
				if (!read_rtc || e->param1 != hour || e->param2 != minute)
				{
					hour = e->param1;
					minute = e->param2;
					read_rtc = true;
					ui->setDirty(window_handle);
				}
			}

			this->popEvent();
		}
	}
	void draw(kernel_handle_t handle)
	{
		if (!read_rtc)
		{
			Module_RTC* rtc = static_cast<Module_RTC*>(watchos::module(WATCHOS_MODULE_RTC));
			hour = rtc->getHour();
			minute = rtc->getMinute();
			read_rtc = true;
		}

		char time[6];
		sprintf(time, "%02d:%02d", hour, minute);

		ui->fill(COLOUR_SECONDARY);
		ui->print(0, ui->getHeight() - 8, time, COLOUR_PRIMARY, 1);
	}

};