#include <nlohmann/json.hpp>
#include <string>
#include <fstream>
#include <functional>
#include <signal.h>

#include "TAPIInlineQuery.h"
#include "TAPIMarkup.h"
#include "TAPIManager.h"

#include "Log.h"

#include "bot.h"
#include "config.h"

namespace tapi = TelegramAPI;

class CommandStart : public TelegramAPI::Command {
public:
	CommandStart(Bot& bot) : TelegramAPI::Command("/start", "Start the Bot"), bot(bot) {}
	virtual bool process(TelegramAPI::Manager* m, const TelegramAPI::Message& msg) {
		return bot.handleStart(m, msg);
	}
private:
	Bot& bot;
};

static bool run = true;

void sig_handler(int sig_num) {
	Log::info << "signalHandler triggered";
	run = false;
	(void) sig_num;
}

static bool loadConfig(Conf& out) {
	std::ifstream conf("tictactoebot.conf");
	if(!conf) {
		Log::error << "Could not open config file! tictactoebot.conf";
		return false;
	}
	while(conf && !conf.eof()) {
		std::string key, value;
		std::getline(conf, key, '=');
		std::getline(conf, value);

		if(key == "token") {
			out.token = value;
		} else if(key == "apiurl") {
			out.apiurl = value;
		}  else {
			Log::info << "unused config value: \"" << key << "\": \"" << value << '"';
		}
	}
	conf.close();
	return true;
}

int main(int argv, char** argc) {
	Log::init();
	Log::setConsoleLogLevel(Log::Level::TRACE);
	Log::setColoredOutput(true);

	Conf conf;
	if(!loadConfig(conf)) return 1;

	TelegramAPI::Manager tmgr(conf.token);

	Bot bot(&tmgr, conf);
	
	Log::info << "Starting.";
	
	tmgr.registerCommand(std::make_unique<CommandStart>(bot));
	namespace pl = std::placeholders;
	tmgr.setMessageHandler(std::bind(&Bot::handleMessage, &bot, pl::_1, pl::_2));
	tmgr.setCallbackQueryHandler(std::bind(&Bot::handleCallback, &bot, pl::_1, pl::_2));

	tmgr.setMyCommands();

	signal(SIGINT, sig_handler);
	signal(SIGTERM, sig_handler);

	while (run) {
		tmgr.getUpdates();
	}

	bot.stop();

	Log::stop();
	return 0;
}