ClientBusinessCentreModel.hpp

/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * Copyright (C) 2026 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_CLIENT_BUSINESS_CENTRE_MODEL_HPP
#define ORES_QT_CLIENT_BUSINESS_CENTRE_MODEL_HPP
 
#include <vector>
#include <cstdint>
#include <QSize>
#include <QFutureWatcher>
#include <QAbstractTableModel>
#include "ores.qt/AbstractClientModel.hpp"
#include "ores.qt/ClientManager.hpp"
#include "ores.qt/ColumnMetadata.hpp"
#include "ores.qt/ImageCache.hpp"
#include "ores.qt/RecencyPulseManager.hpp"
#include "ores.qt/RecencyTracker.hpp"
#include "ores.logging/make_logger.hpp"
#include "ores.refdata.api/domain/business_centre.hpp"
 
namespace ores::qt {
 
class ClientBusinessCentreModel final : public AbstractClientModel {
    Q_OBJECT
 
private:
    inline static std::string_view logger_name =
        "ores.qt.client_business_centre_model";
 
    [[nodiscard]] static auto& lg() {
        using namespace ores::logging;
        static auto instance = make_logger(logger_name);
        return instance;
    }
 
public:
    enum Column {
        CountryAlpha2,
        Code,
        City,
        Source,
        Description,
        CodingScheme,
        Version,
        ModifiedBy,
        RecordedAt,
        ColumnCount
    };
 
    static constexpr std::size_t kColumnCount = std::size_t(ColumnCount);
    static constexpr std::array<ColumnMetadata, kColumnCount> kColumns = {{
        {
            .column = CountryAlpha2,
            .header = std::string_view("Country"),
            .style = column_style::mono_bold_center,
            .hidden_by_default = false,
            .default_width = kColumnWidthAuto
        },
        {
            .column = Code,
            .header = std::string_view("Code"),
            .style = column_style::mono_bold_left,
            .hidden_by_default = false,
            .default_width = kColumnWidthAuto
        },
        {
            .column = City,
            .header = std::string_view("City"),
            .style = column_style::text_left,
            .hidden_by_default = false,
            .default_width = kColumnWidthAuto
        },
        {
            .column = Source,
            .header = std::string_view("Source"),
            .style = column_style::text_left,
            .hidden_by_default = false,
            .default_width = kColumnWidthAuto
        },
        {
            .column = Description,
            .header = std::string_view("Description"),
            .style = column_style::text_left,
            .hidden_by_default = true,
            .default_width = kColumnWidthAuto
        },
        {
            .column = CodingScheme,
            .header = std::string_view("Coding Scheme"),
            .style = column_style::mono_left,
            .hidden_by_default = true,
            .default_width = kColumnWidthAuto
        },
        {
            .column = Version,
            .header = std::string_view("Version"),
            .style = column_style::mono_center,
            .hidden_by_default = false,
            .default_width = 70
        },
        {
            .column = ModifiedBy,
            .header = std::string_view("Modified By"),
            .style = column_style::text_left,
            .hidden_by_default = false,
            .default_width = kColumnWidthAuto
        },
        {
            .column = RecordedAt,
            .header = std::string_view("Recorded At"),
            .style = column_style::mono_left,
            .hidden_by_default = false,
            .default_width = 155
        }
    }};
 
    inline static const QSize kDefaultWindowSize = {900, 400};
 
    static constexpr std::string_view kSettingsGroup = "BusinessCentreListWindow";
 
    static std::vector<column_style> const& columnStyles() {
        static std::vector<column_style> const kStylesVector = []() {
            std::vector<column_style> result;
            result.reserve(kColumnCount);
            for (std::size_t i = 0; i < kColumnCount; ++i)
                result.push_back(kColumns[i].style);
            return result;
        }();
        return kStylesVector;
    }
 
    static QVector<int> defaultHiddenColumns() {
        static QVector<int> const result =
            ::ores::qt::defaultHiddenColumns<kColumnCount>(kColumns);
        return result;
    }
 
    explicit ClientBusinessCentreModel(ClientManager* clientManager,
                                       ImageCache* imageCache,
                                       QObject* parent = nullptr);
    ~ClientBusinessCentreModel() override = default;
 
    // QAbstractTableModel interface
    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 refresh(bool replace = true);
 
    void load_page(std::uint32_t offset, std::uint32_t limit);
 
    const refdata::domain::business_centre* getBusinessCentre(int row) const;
 
    std::uint32_t page_size() const { return page_size_; }
    void set_page_size(std::uint32_t size);
    std::uint32_t total_available_count() const { return total_available_count_; }
 
signals:
private slots:
    void onBusinessCentresLoaded();
    void onPulseStateChanged(bool isOn);
    void onPulsingComplete();
 
private:
    QVariant recency_foreground_color(const std::string& code) const;
 
    struct FetchResult {
        bool success;
        std::vector<refdata::domain::business_centre> business_centres;
        std::uint32_t total_available_count;
        QString error_message;
        QString error_details;
    };
 
    void fetch_business_centres(std::uint32_t offset, std::uint32_t limit);
 
    ClientManager* clientManager_;
    ImageCache* imageCache_;
    std::vector<refdata::domain::business_centre> business_centres_;
    QFutureWatcher<FetchResult>* watcher_;
    std::uint32_t page_size_{100};
    std::uint32_t total_available_count_{0};
    bool is_fetching_{false};
 
    using BusinessCentreKeyExtractor = std::string(*)(const refdata::domain::business_centre&);
    RecencyTracker<refdata::domain::business_centre, BusinessCentreKeyExtractor> recencyTracker_;
    RecencyPulseManager* pulseManager_;
};
 
}
 
#endif