#include "WriteRegister.hpp"

#include "src/DebugServers/GdbRsp/GdbRspDebugServer.hpp"
#include "src/Exceptions/Exception.hpp"

namespace Bloom::DebugServers::Gdb::CommandPackets
{
    using namespace Bloom::Exceptions;

    void WriteRegister::dispatchToHandler(Gdb::GdbRspDebugServer& gdbRspDebugServer) {
        gdbRspDebugServer.handleGdbPacket(*this);
    }

    void WriteRegister::init() {
        // The P packet updates a single register
        auto packet = std::string(this->data.begin(), this->data.end());

        if (packet.size() < 4) {
            throw Exception("Invalid P command packet - insufficient data in packet.");
        }

        if (packet.find('=') == std::string::npos) {
            throw Exception("Invalid P command packet - unexpected format");
        }

        auto packetSegments = QString::fromStdString(packet).split("=");
        this->registerNumber = static_cast<int>(packetSegments.front().mid(1).toUInt(nullptr, 16));
        this->registerValue = Packet::hexToData(packetSegments.back().toStdString());
        std::reverse(this->registerValue.begin(), this->registerValue.end());
    }
}