// vim: set noet ts=4 sw=4:

#include "./kappl.h"
#include "../../syscall/stub.h"

#include "../../device/textstream.h"
extern TextStream kout;
#include "../../interrupt/guard.h"
extern Semaphore koutsem;

void KeyboardApplication::action() {  // NOLINT
	const unsigned line = 10 + 2;
	for (unsigned column = 0;; ++column) {
		Key key;
		{
			Guarded g = Guard::enter();
			g.vault().keys_sem.p(g.vault());
			assert(g.vault().keys.consume(key) && "No key but sem returned!");
		}
		if (key.valid()) {
			if (column >= CGA::COLUMNS - 1) {
				column = 0;
				koutsem.p(Guard::enter().vault());
				for (unsigned offset = 0; offset < 3; offset++) {
					for (unsigned column = 0; column < CGA::COLUMNS; ++column) {
						CGA::show(column, line + offset, ' ');
					}
				}
				koutsem.v(Guard::enter().vault());
			}
			koutsem.p(Guard::enter().vault());
			kout.setPos(column, line);
			kout << static_cast<char>(key.ascii());
			kout.flush();
			koutsem.v(Guard::enter().vault());
		}
		for (unsigned offset = 0; offset < 3; offset++) {
			{
				Guarded g = Guard::enter();
				g.vault().bellringer.sleep(g.vault(), 10);
				koutsem.p(g.vault());
			}
			kout.setPos(column, line + offset);
			kout << static_cast<char>(key.ascii());
			kout.flush();
			koutsem.v(Guard::enter().vault());
		}
	}
}