//
// Created by selim on 9/16/23.
//

#include "Logger.h"

#include <cstring>
#include <fstream>
#include <format>

namespace nes {

    Logger::Logger(size_t size): _size{size}, _offset{0} {
        _data = std::make_unique<uint8_t[]>(size);
    }

    void Logger::addLine(uint64_t cycle, std::string_view line) {
        if((_offset + line.size() + 10) >= _size) {
            return;
        }

        std::string cycleString = std::format("[{:06d}] ", cycle);
        std::memcpy(_data.get() + _offset, cycleString.data(), cycleString.size());
        _offset += cycleString.size();

        std::memcpy(_data.get() + _offset, line.data(), line.size());
        _offset += line.size();
        _data[_offset++] = '\n';
    }

    void Logger::dump(const fs::path &path) {
        std::ofstream file(path, std::ios::binary);
        file.write(reinterpret_cast<char*>(_data.get()), static_cast<std::streamsize>(_offset));
    }
}