MinePriceCalc/selllistwidget.cpp at master · GabR36/MinePriceCalc · GitHub

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#include "selllistwidget.h"
#include "database.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QPushButton>
#include <QHeaderView>

SellListWidget::SellListWidget(QWidget* parent) : QWidget(parent) {
    auto* layout = new QVBoxLayout(this);

    auto* top = new QHBoxLayout;
    top->addWidget(new QLabel("<b>Items I can sell</b>"));
    top->addStretch();
    m_lbl_count = new QLabel;
    top->addWidget(m_lbl_count);
    auto* btn_refresh = new QPushButton("Refresh");
    top->addWidget(btn_refresh);
    layout->addLayout(top);

    m_table = new QTableWidget(0, 5);
    m_table->setHorizontalHeaderLabels({"Item", "Technique", "Production Price", "Market Price", "Difference"});
    m_table->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Stretch);
    m_table->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
    m_table->setEditTriggers(QAbstractItemView::NoEditTriggers);
    m_table->setAlternatingRowColors(true);
    m_table->setSortingEnabled(true);
    layout->addWidget(m_table, 1);

    connect(btn_refresh, &QPushButton::clicked, this, &SellListWidget::refresh);

    refresh();
}

void SellListWidget::refresh() {
    m_table->setSortingEnabled(false);
    m_table->setRowCount(0);

    const auto items = Database::instance().getSellableItems();

    for (const auto& si : items) {
        int row = m_table->rowCount();
        m_table->insertRow(row);

        m_table->setItem(row, 0, new QTableWidgetItem(si.item_name));
        m_table->setItem(row, 1, new QTableWidgetItem(si.technique_name));

        auto* own_item = new QTableWidgetItem;
        own_item->setData(Qt::DisplayRole, QString::number(si.own_price, 'f', 4));
        own_item->setData(Qt::UserRole, si.own_price);
        m_table->setItem(row, 2, own_item);

        auto* mkt_item = new QTableWidgetItem;
        if (si.market_price >= 0) {
            mkt_item->setData(Qt::DisplayRole, QString::number(si.market_price, 'f', 4));
            mkt_item->setData(Qt::UserRole, si.market_price);
        } else {
            mkt_item->setText("—");
        }
        m_table->setItem(row, 3, mkt_item);

        auto* diff_item = new QTableWidgetItem;
        if (si.market_price > 0) {
            double diff_pct = ((si.own_price - si.market_price) / si.market_price) * 100.0;
            diff_item->setData(Qt::DisplayRole, QString("%1%").arg(diff_pct, 0, 'f', 1));
            diff_item->setData(Qt::UserRole, diff_pct);
            if (diff_pct < 0)
                diff_item->setForeground(QColor(0, 150, 0));   // green: production cheaper than market (good margin)
            else if (diff_pct > 0)
                diff_item->setForeground(QColor(200, 0, 0));   // red: production more expensive than market
        } else {
            diff_item->setText("—");
        }
        m_table->setItem(row, 4, diff_item);
    }

    m_table->setSortingEnabled(true);
    m_lbl_count->setText(QString("%1 item(s)").arg(items.size()));
}