export report as csv file implemented

src/core/marketplace.cpp

@@ -2,6 +2,7 @@
 #include "database.h"
 
 #include <algorithm>
+#include <fstream>
 #include <iomanip>
 #include <numeric>
 #include <sstream>
@@ -133,6 +134,27 @@ void Marketplace::removeSale(boost::uuids::uuid uuid)
                  sales_.end());
 }
 
+void Marketplace::exportReportToCSV(const std::string& filename, int feeInPercent, int maxFeeInEuro)
+{
+    const unsigned char delimiter = ',';
+    std::ofstream file(filename);
+
+    file << "Verk.Nr." << delimiter << "Nachname" << delimiter << "Vorname" << delimiter
+         << "Anz. gemeldet" << delimiter << "Anz. verkauft" << delimiter << "Umsatz" << delimiter
+         << "Auszahlung\n";
+
+    for (const auto& seller : sellers_) {
+        file << seller->getSellerNo() << delimiter
+             << escapeCsvValue(seller->getLastName(), delimiter) << delimiter
+             << escapeCsvValue(seller->getFirstName(), delimiter) << delimiter
+             << seller->numArticlesOffered() << delimiter << seller->numArticlesSold() << delimiter
+             << escapeCsvValue(seller->sumAsString(), delimiter) << delimiter
+             << escapeCsvValue(paymentAsString(seller->sumInCents(), feeInPercent, maxFeeInEuro),
+                               delimiter)
+             << "\n";
+    }
+}
+
 double marketFee(int sum, int percent, int maxFee)
 {
     int fee = (sum * percent) / 100.0L;
@@ -156,4 +178,29 @@ std::string paymentAsString(int sumInCent, int percent, int maxFeeInCent)
     feeStream << std::right << std::setw(10) << std::showbase
               << std::put_money(sumInCent - marketFee(sumInCent, percent, maxFeeInCent), false);
     return feeStream.str();
+}
+
+std::string escapeCsvValue(const std::string& value, const char delimiter)
+{
+    std::stringstream output;
+    bool containsDelim{false};
+
+    if (value.find(delimiter) != std::string::npos || value.find('"') != std::string::npos) {
+        containsDelim = true;
+        output << '"';
+    }
+
+    for (auto& symbol : value) {
+        if (symbol == '"') {
+            output << '"' << symbol;
+        } else {
+            output << symbol;
+        }
+    }
+
+    if (containsDelim) {
+        output << '"';
+    }
+
+    return output.str();
 }

src/core/marketplace.h

@@ -41,6 +41,8 @@ class Marketplace
     void finishCurrentSale(std::unique_ptr<Sale> sale);
     void removeSale(boost::uuids::uuid uuid);
 
+    void exportReportToCSV(const std::string& filename, int feeInPercent, int maxFeeInEuro);
+
   private:
     SellersVec sellers_;
     SalesVec sales_;
@@ -50,5 +52,6 @@ class Marketplace
 double marketFee(int sumInCent, int percent, int maxFeeInCent);
 std::string marketFeeAsString(int sumInCent, int percent, int maxFeeInCent);
 std::string paymentAsString(int sumInCent, int percent, int maxFeeInCent);
+std::string escapeCsvValue(const std::string& value, const char delimiter);
 
 #endif

src/gui/reportdialog.cpp

@@ -2,6 +2,9 @@
 
 #include "mainwindow.h"
 
+#include <QFileDialog>
+#include <QSettings>
+
 ReportDialog::ReportDialog(QWidget* parent, Qt::WindowFlags f) : QDialog(parent, f)
 {
     ui_.setupUi(this);
@@ -9,4 +12,21 @@ ReportDialog::ReportDialog(QWidget* parent, Qt::WindowFlags f) : QDialog(parent,
     model_ = std::make_unique<ReportModel>(market_, ui_.reportView);
     ui_.reportView->setModel(model_.get());
     ui_.reportView->hideColumn(0);
+
+    connect(ui_.exportCsvButton, &QPushButton::clicked, this, &ReportDialog::onExportCsvButtonClicked);
+}
+
+void ReportDialog::onExportCsvButtonClicked()
+{
+    QSettings settings;
+    int feeInPercent = settings.value("global/feeInPercent").toInt();
+    int maxFeeInEuro = settings.value("global/maxFeeInEuro").toInt();
+
+    QFileDialog fileDialog(this);
+    fileDialog.setFileMode(QFileDialog::AnyFile);
+    fileDialog.setNameFilter("CSV Files (*.csv)");
+    fileDialog.setAcceptMode(QFileDialog::AcceptSave);
+    if (fileDialog.exec()) {
+        market_->exportReportToCSV(fileDialog.selectedFiles().at(0).toStdString(), feeInPercent, maxFeeInEuro);
+    }
 }

src/gui/reportdialog.h

@@ -17,7 +17,10 @@ class ReportDialog : public QDialog
     ReportDialog(QWidget* parent = nullptr,
                  Qt::WindowFlags f = Qt::WindowTitleHint | Qt::WindowSystemMenuHint);
 
-    private:
+  private slots:
+    void onExportCsvButtonClicked();
+
+  private:
     Ui::ReportDialog ui_;
     Marketplace* market_;
     std::unique_ptr<ReportModel> model_;

src/gui/reportdialog.ui

@@ -39,7 +39,7 @@
         </widget>
        </item>
        <item>
-        <widget class="QPushButton" name="pushButton_2">
+        <widget class="QPushButton" name="exportCsvButton">
          <property name="text">
           <string>Exportieren (.csv)</string>
          </property>