#include <cstdlib>
#include <cstdio>
#include <memory>

#include "backend/print.h"
#include "backend/Dungeon.h"

#include "GameData.h"
#include "Player.h"
#include "Exception.h"
#include "load_dungeon.h"
#include "generate_dungeon.h"
#include "rl.h"
#include "strings.h"

using namespace std;

static unique_ptr<Dungeon> make_dungeon() noexcept {
	while (1) {
		str_print(strings::INTRO);
		string filename = rl();
		try {
			if (filename.size() == 0) {
				return generate_dungeon();
			} else {
				return load_dungeon(filename);
			}
		} catch (Exception & e) {
			lprtf("FOUT: %s\n", e.what());
		}
	}
}

FollowupAction game_main() {
	unique_ptr<Dungeon> dungeon = make_dungeon();
	Player player { *dungeon };

	while (1) {
		string line = rl();
		if (line.length() == 0) continue;
		FollowupAction action = player.cmd(line);

		switch (action) {
			case NONE: break;
			case UPDATE: {
				dungeon->update(&player.get_location());
				break;
			}
			default: return action;
		}
	}
}

int main() {
	try {
		GameData::get_instance(); // pre-load DB
	} catch (Exception & e) {
		lprtf("FOUT: %s\n", e.what());
		return EXIT_FAILURE;
	}

	FollowupAction action;
	do {
		action = game_main();
		if (action == EXIT) break;
	} while (action == RESTART);

	return EXIT_SUCCESS;
}