SessionHistoryDialog.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2025 Marco Craveiro <marco.craveiro@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */
#ifndef ORES_QT_SESSION_HISTORY_DIALOG_HPP
#define ORES_QT_SESSION_HISTORY_DIALOG_HPP
 
#include <QIcon>
#include <QTimer>
#include <QWidget>
#include <QTableView>
#include <QVBoxLayout>
#include <QSplitter>
#include <QAbstractTableModel>
#include <QFutureWatcher>
#include <QItemSelection>
#include <QtCharts/QChartView>
#include <memory>
#include <boost/uuid/uuid.hpp>
#include "ores.qt/ClientManager.hpp"
#include "ores.logging/make_logger.hpp"
#include "ores.iam.api/domain/session.hpp"
#include "ores.iam.api/messaging/session_samples_protocol.hpp"
 
namespace ores::qt {
 
class SessionHistoryModel : public QAbstractTableModel {
    Q_OBJECT
 
public:
    explicit SessionHistoryModel(QObject* parent = nullptr);
 
    int rowCount(const QModelIndex& parent = QModelIndex()) const override;
    int columnCount(const QModelIndex& parent = QModelIndex()) const override;
    QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
    QVariant headerData(int section, Qt::Orientation orientation,
        int role = Qt::DisplayRole) const override;
 
    void setSessions(const std::vector<iam::domain::session>& sessions);
    void clear();
 
    void updateActiveBytesFromClient(std::uint64_t bytes_sent,
                                     std::uint64_t bytes_received);
 
    const std::vector<iam::domain::session>& sessions() const { return sessions_; }
 
private:
    enum Column {
        StartTime,
        EndTime,
        Duration,
        ClientIP,
        Country,
        BytesSent,
        BytesReceived,
        ClientVersion,
        ColumnCount
    };
 
    std::vector<iam::domain::session> sessions_;
    QIcon activeIcon_;
    QIcon historyIcon_;
};
 
class SessionHistoryDialog : public QWidget {
    Q_OBJECT
 
private:
    inline static std::string_view logger_name =
        "ores.qt.session_history_dialog";
 
    [[nodiscard]] static auto& lg() {
        using namespace ores::logging;
        static auto instance = make_logger(logger_name);
        return instance;
    }
 
public:
    explicit SessionHistoryDialog(ClientManager* clientManager,
                                  QWidget* parent = nullptr);
    ~SessionHistoryDialog() override;
 
    void setAccount(const boost::uuids::uuid& accountId,
                    const QString& username);
 
    void refresh();
 
signals:
    void statusMessage(const QString& message);
    void errorMessage(const QString& message);
 
private slots:
    void onSessionsLoaded();
    void onSamplesLoaded();
    void onSessionSelectionChanged(const QItemSelection& selected,
                                   const QItemSelection& deselected);
    void onSampleRefreshTimeout();
 
private:
    void setupUi();
 
    QTableView* tableView_;
    SessionHistoryModel* model_;
    QSplitter* splitter_;
    QChartView* chartView_;
    ClientManager* clientManager_;
    boost::uuids::uuid accountId_;
    QString username_;
 
    struct FetchResult {
        bool success;
        std::vector<iam::domain::session> sessions;
        std::uint32_t total_count;
    };
 
    struct FetchSamplesResult {
        bool success;
        bool is_active = false;  // true if the session is still running
        boost::uuids::uuid session_id;
        QString session_label;
        std::vector<iam::messaging::session_sample_dto> samples;
    };
 
    QFutureWatcher<FetchResult>* watcher_;
    QFutureWatcher<FetchSamplesResult>* samplesWatcher_;
    QTimer* sampleRefreshTimer_;
 
    // Currently selected session state (for auto-refresh)
    bool hasSelectedSession_ = false;
    boost::uuids::uuid selectedSessionId_ = {};
    QString selectedSessionLabel_;
    bool selectedSessionActive_ = false;
};
 
}
 
#endif