#ifndef DATAMANAGER_H
#define DATAMANAGER_H

#include <QObject>
#include <QMessageBox>
#include <QJsonDocument>

#include "protocol.h"
#include "tcpclient.h"

class DataManager : public QObject
{
    Q_OBJECT
public:
    static DataManager* getInstance();

private:
    explicit DataManager(QObject *parent = nullptr);
    //static void recv_from_server(QString &peerAddress,quint16 peerPort,QByteArray &data);
    //static Protocol *protocol;
    //static DataManager *p_this;
    Protocol *protocol;
    TCPClient *tcpclient;
    bool connect_flag = false;

signals:
    void connect_to_server();
    void disconnect_from_server();
    void new_message();
    void signin_response(bool result);
    void signup_response(bool result);
    void update_text(QString sendname,QString data);
    void update_file(QString sendname,QString filename,QString file_data);
    void update_file_private(QString sendname,QString filename,QString file_data);
    void update_users(int count,QList<QString>online_users);


public slots:
    /*******ui界面********/
    void Register(QString username,QString password);
    void signin_request(QString username,QString password);

    /******MAINWIDGET*****/
    void send_text(QString sendname,QString text);
    void send_to_user(QString sendname,QString to_user,QString text);
    void send_file_to_all(QString sendname,QString filename,QByteArray file);
    void send_file_private(QString sendname,QString filename,QByteArray file,QString name);
    void update_namelist(QString username);
    void account_cancellation(QString username);

    /******TCPClient******/
    void TCPClientConnected();
    void TCPClientDisconnected();
    void recv_from_server(QByteArray data);

};

#endif // DATAMANAGER_H