#include "loginrpc.h"

#include <QtNetwork/QTcpServer>
#include <QtNetwork/QTcpSocket>
#include <QDebug>

LoginRpc::LoginRpc(int port, QObject *parent)
    : QObject(parent)
{
    QTcpServer *srv = new QTcpServer(this);
    srv->listen(QHostAddress::Any, port);
    connect(srv, &QTcpServer::newConnection, [=] {
        while (srv->hasPendingConnections()) {
            QTcpSocket *sock = srv->nextPendingConnection();
            handleIncoming(sock);
        }
    });
}

void LoginRpc::handleIncoming(QTcpSocket *sock) {
    connect(sock, &QTcpSocket::readyRead, [=] {
        QByteArray ba = sock->readAll(); // XXX We assume everything arrives in one packet
        if (ba.length() < 2) {
            sock->deleteLater();
            return;
        }
        int vers = (ba[0] << 8) + ba[1];
        ba = ba.mid(2);
        ba = QByteArray::fromBase64(ba);
        if (vers == 1) {
            handleCommandV1(QString::fromUtf8(ba));
        } else {
            qDebug() << "Ignoring unknown Login RPC version" << vers;
        }
    });
}

void LoginRpc::handleCommandV1(const QString &command)
{
    QStringList lines = command.split('\n');
    while (lines.count() < 3) {
        lines.append(QString());
    }
    emit loginRequest(lines[0], lines[1], lines[2]);
}