1 files changed, 102 insertions, 0 deletions
diff --git a/src/net/nettcpconnection.cpp b/src/net/nettcpconnection.cpp
new file mode 100644
index 00000000..744eed9e
--- /dev/null
+++ b/src/net/nettcpconnection.cpp
@@ -0,0 +1,102 @@
+#include "nettcpconnection.h"
+
+NetTcpConnection::NetTcpConnection(QObject *parent)
+    : NetConnection(parent)
+    , m_socket(new QTcpSocket(this))
+    , m_last_state(QAbstractSocket::UnconnectedState)
+{
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
+  connect(m_socket, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::error), this, &NetTcpConnection::onErrorOccurred);
+#else
+  connect(m_socket, &QTcpSocket::errorOccurred, this, &NetTcpConnection::onErrorOccurred);
+#endif
+  connect(m_socket, &QTcpSocket::stateChanged, this, &NetTcpConnection::onStateChanged);
+  connect(m_socket, &QTcpSocket::readyRead, this, &NetTcpConnection::onReadyRead);
+}
+
+NetTcpConnection::~NetTcpConnection()
+{
+  m_socket->disconnect(this);
+  disconnectFromServer();
+}
+
+bool NetTcpConnection::isConnected()
+{
+  return m_last_state == QAbstractSocket::ConnectedState;
+}
+
+void NetTcpConnection::connectToServer(ServerInfo &server)
+{
+  disconnectedFromServer();
+  m_socket->connectToHost(server.ip, server.port);
+}
+
+void NetTcpConnection::disconnectFromServer()
+{
+  m_socket->abort();
+}
+
+void NetTcpConnection::sendPacket(AOPacket packet)
+{
+  if (!isConnected())
+  {
+    qWarning().noquote() << QObject::tr("Cannot send packet, not connected to server");
+    return;
+  }
+  m_socket->write(packet.toString(true).toUtf8());
+}
+
+void NetTcpConnection::onErrorOccurred()
+{
+  Q_EMIT errorOccurred(m_socket->errorString());
+}
+
+void NetTcpConnection::onStateChanged(QAbstractSocket::SocketState state)
+{
+  m_last_state = state;
+  switch (state)
+  {
+  default:
+    break;
+
+  case QAbstractSocket::ConnectedState:
+    m_cached_data.clear();
+    Q_EMIT connectedToServer();
+    break;
+
+  case QAbstractSocket::UnconnectedState:
+    Q_EMIT disconnectFromServer();
+    break;
+  }
+}
+
+void NetTcpConnection::onReadyRead()
+{
+  m_cached_data += QString::fromUtf8(m_socket->readAll());
+  if (!m_cached_data.endsWith('%'))
+  {
+    return;
+  }
+
+  QStringList raw_packet_list = m_cached_data.split('%', AOSplitBehaviorFlags::SkipEmptyParts);
+  m_cached_data.clear();
+  for (QString raw_packet : raw_packet_list)
+  {
+    if (!raw_packet.endsWith('#'))
+    {
+      Q_EMIT errorOccurred(QObject::tr("Malformed packet received %1").arg(raw_packet));
+      continue;
+    }
+    raw_packet.chop(1);
+
+    QStringList raw_content = raw_packet.split('#');
+
+    const QString header = raw_content.takeFirst();
+    for (QString &data : raw_content)
+    {
+      data = AOPacket::decode(data);
+    }
+
+    Q_EMIT receivedPacket(AOPacket(header, raw_content));
+  }
+}