/**

 * DJM-Fix

 * Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 3 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */

#include <iostream>

#include <iomanip>

#include <thread>

#include <atomic>

#include <chrono>

#include <stdexcept>

#include "DJMFix.h"

namespace djmfix {

class DJMFixImpl : public DJMFix {

private:

	MidiSender* midiSender;

	std::thread keepAliveThread;

	std::atomic<bool> running{false};

	std::atomic<bool> stopped{false};

	void run() {

		while (!stopped) {

			std::cerr << "DJMFixImpl::run()" << std::endl; // TODO: do not mess STDIO

			// TODO: send keep-alive messages

			std::this_thread::sleep_for(std::chrono::milliseconds(200));

		}

	}

	// TODO: remove

	std::string toString(const MidiMessage& midiMessage) {

		std::stringstream result;

		for (uint8_t b : midiMessage) result << std::hex << std::setw(2) << std::setfill('0') << (int) b;

		return result.str();

	}

public:

	virtual ~DJMFixImpl() override {

		std::cerr << "~DJMFixImpl()" << std::endl; // TODO: do not mess STDIO

		if (running) stop();

	}

	void setMidiSender(MidiSender* midiSender) {

		std::cerr << "DJMFixImpl::setMidiSender()" << std::endl; // TODO: do not mess STDIO

		this->midiSender = midiSender;

	}

	virtual void receive(MidiMessage midiMessage) override {

		std::cerr << "DJMFixImpl::receive(): size = " << midiMessage.size() << " data = " << toString(midiMessage) << std::endl; // TODO: do not mess STDIO

		if (midiMessage.size() == 54 && midiMessage[9] == 0x13) {

			std::cerr << "DJMFixImpl::receive(): got message with HashA and SeedE" << std::endl; // TODO: do not mess STDIO

		}

	}

	void start() override {

		std::cerr << "DJMFixImpl::start()" << std::endl; // TODO: do not mess STDIO

		if (midiSender == nullptr) throw std::logic_error("need a midiSender when starting DJMFix");

		// TODO: methods for parsing and constructing messages from parts (TLV)

		midiSender->send({0xf0, 0x00, 0x40, 0x05, 0x00, 0x00, 0x00, 0x17, 0x00, 0x50, 0x01, 0xf7});

		std::this_thread::sleep_for(std::chrono::milliseconds(10));

		midiSender->send({0xf0, 0x00, 0x40, 0x05, 0x00, 0x00, 0x00, 0x17, 0x00, 0x12, 0x2a, 0x01, 0x0b, 0x50, 0x69, 0x6f, 0x6e, 0x65, 0x65, 0x72, 0x44, 0x4a, 0x02, 0x0b, 0x72, 0x65, 0x6b, 0x6f, 0x72, 0x64, 0x62, 0x6f, 0x78, 0x03, 0x12, 0x02, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x03, 0x04, 0x08, 0x00, 0x00, 0x00, 0x00, 0xf7});

		keepAliveThread = std::thread(&DJMFixImpl::run, this);

		running = true;

	}

	void stop() override {

		stopped = true;

		keepAliveThread.join();

		running = false;

		std::cerr << "DJMFixImpl::stop()" << std::endl; // TODO: do not mess STDIO

	}

};

DJMFix* create() {

	return new DJMFixImpl();

}

}