#ifndef IVRTCPCLIENT_H
#define IVRTCPCLIENT_H

#include <QObject>
#include <QByteArray>
#include <QHostAddress>

class IVrTcpClient : public QObject
{
    Q_OBJECT

public:
    explicit IVrTcpClient(QObject *parent = nullptr) : QObject(parent) {}
    virtual ~IVrTcpClient() {}

    // 连接服务器
    virtual bool connectToServer(const QString &host, quint16 port) = 0;
    virtual bool connectToServer(const QHostAddress &address, quint16 port) = 0;
    
    // 断开连接
    virtual void disconnectFromServer() = 0;
    
    // 发送数据
    virtual qint64 sendData(const QByteArray &data) = 0;
    virtual qint64 sendData(const char *data, qint64 size) = 0;
    
    // 获取连接状态
    virtual bool isConnected() const = 0;
    
    // 获取服务器地址和端口
    virtual QHostAddress serverAddress() const = 0;
    virtual quint16 serverPort() const = 0;

signals:
    // 连接状态变化信号
    void connected();
    void disconnected();
    void connectionError(const QString &errorString);
    
    // 数据接收信号
    void dataReceived(const QByteArray &data);
    
    // 数据发送信号
    void dataSent(qint64 bytesSent);

protected:
    // 设置连接状态（供子类使用）
    void setConnected(bool connected) { m_connected = connected; }
    
    bool m_connected = false;
    QHostAddress m_serverAddress;
    quint16 m_serverPort = 0;
};

#endif // IVRTCPCLIENT_H