#include "SupportedFeaturesQuery.hpp"

#include <QtCore/QString>

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

namespace Bloom::DebugServers::Gdb::CommandPackets
{
    void SupportedFeaturesQuery::dispatchToHandler(Gdb::GdbRspDebugServer& gdbRspDebugServer) {
        gdbRspDebugServer.handleGdbPacket(*this);
    }

    void SupportedFeaturesQuery::init() {
        /*
         * For qSupported packets, supported and unsupported GDB features are reported in the packet
         * data, where each GDB feature is separated by a semicolon.
         */

        // The "qSupported:" prefix occupies 11 bytes
        if (data.size() > 11) {
            auto packetData = QString::fromLocal8Bit(
                reinterpret_cast<const char*>(this->data.data() + 11),
                static_cast<int>(this->data.size() - 11)
            );

            auto featureList = packetData.split(";");
            auto gdbFeatureMapping = getGdbFeatureToNameMapping();

            for (int i = 0; i < featureList.size(); i++) {
                auto featureString = featureList.at(i);

                // We only care about supported features. Supported features will precede a '+' character.
                if (featureString[featureString.size() - 1] == '+') {
                    featureString.remove('+');

                    auto feature = gdbFeatureMapping.valueAt(featureString.toStdString());
                    if (feature.has_value()) {
                        this->supportedFeatures.insert(static_cast<decltype(feature)::value_type>(feature.value()));
                    }
                }
            }
        }
    }
}
