Implement multiple saves import

https://bugs.dolphin-emu.org/issues/12887

Source/Core/DolphinQt/MenuBar.cpp

@@ -9,6 +9,7 @@
 #include <QAction>
 #include <QActionGroup>
 #include <QDesktopServices>
+#include <QDirIterator>
 #include <QFileDialog>
 #include <QFontDialog>
 #include <QInputDialog>
@@ -334,6 +335,8 @@ void MenuBar::AddToolsMenu()
 
   m_import_wii_save =
       tools_menu->addAction(tr("Import Wii Save..."), this, &MenuBar::ImportWiiSave);
+  m_import_wii_saves =
+      tools_menu->addAction(tr("Import Wii Saves..."), this, &MenuBar::ImportWiiSaves);
   m_export_wii_saves =
       tools_menu->addAction(tr("Export All Wii Saves"), this, &MenuBar::ExportWiiSaves);
 
@@ -1085,6 +1088,7 @@ void MenuBar::UpdateToolsMenu(const Core::State state)
   m_import_backup->setEnabled(is_uninitialized);
   m_check_nand->setEnabled(is_uninitialized);
   m_import_wii_save->setEnabled(is_uninitialized);
+  m_import_wii_saves->setEnabled(is_uninitialized);
   m_export_wii_saves->setEnabled(is_uninitialized);
 
   if (is_uninitialized)
@@ -1156,7 +1160,8 @@ void MenuBar::ImportWiiSave()
     return ModalMessageBox::question(
                this, tr("Save Import"),
                tr("Save data for this title already exists in the NAND. Consider backing up "
-                  "the current data before overwriting.\nOverwrite now?")) == QMessageBox::Yes;
+                  "the current data before overwriting.\n\nOverwrite existing save data?")) ==
+           QMessageBox::Yes;
   };
 
   const auto result = WiiSave::Import(file.toStdString(), can_overwrite);
@@ -1187,6 +1192,95 @@ void MenuBar::ImportWiiSave()
   }
 }
 
+void MenuBar::ImportWiiSaves()
+{
+  QString folder =
+      DolphinFileDialog::getExistingDirectory(this, tr("Select Save Folder"), QDir::currentPath());
+
+  if (folder.isEmpty())
+    return;
+
+  QDirIterator it(folder, QStringList(QStringLiteral("*.bin")), QDir::Files,
+                  QDirIterator::Subdirectories);
+  QStringList failure_details;
+  size_t success_count = 0;
+  size_t fail_count = 0;
+  bool yes_all = false;
+  bool no_all = false;
+
+  while (it.hasNext())
+  {
+    const QString file = it.next();
+
+    auto can_overwrite = [&] {
+      if (yes_all)
+        return true;
+      if (no_all)
+        return false;
+
+      auto response = ModalMessageBox::question(
+          this, tr("Save Import"),
+          tr("%1: Save data for this title already exists in the NAND. Consider backing up "
+             "the current data before overwriting.\n\nOverwrite existing save data?")
+              .arg(file),
+          QMessageBox::StandardButton::YesAll | QMessageBox::StandardButton::Yes |
+              QMessageBox::StandardButton::No | QMessageBox::StandardButton::NoAll);
+
+      if (response == QMessageBox::YesAll)
+      {
+        yes_all = true;
+        return true;
+      }
+      else if (response == QMessageBox::NoAll)
+      {
+        no_all = true;
+        return false;
+      }
+      return response == QMessageBox::Yes;
+    };
+
+    const auto result = WiiSave::Import(file.toStdString(), can_overwrite);
+    switch (result)
+    {
+    case WiiSave::CopyResult::Success:
+      success_count++;
+      break;
+    case WiiSave::CopyResult::CorruptedSource:
+      fail_count++;
+      failure_details.append(tr("%1: Failed to import save file. The given file appears to be "
+                                "corrupted or is not a valid Wii save.")
+                                 .arg(file));
+      break;
+    case WiiSave::CopyResult::TitleMissing:
+      fail_count++;
+      failure_details.append(
+          tr("%1: Failed to import save file. Please launch the game once, then try again.")
+              .arg(file));
+      break;
+    case WiiSave::CopyResult::Cancelled:
+      break;
+    default:
+      fail_count++;
+      failure_details.append(
+          tr("%1: Failed to import save file. Your NAND may be corrupt, or something is preventing "
+             "access to files within it. Try repairing your NAND (Tools -> Manage NAND -> Check "
+             "NAND...), then import the save again.")
+              .arg(file));
+      break;
+    }
+  }
+
+  if (success_count == 0 && fail_count == 0)
+    return;
+
+  ModalMessageBox::information(this, tr("Save Import"),
+                               tr("Successfully imported %1 save file(s) with %2 failure(s)")
+                                   .arg(success_count)
+                                   .arg(fail_count),
+                               QMessageBox::Ok, QMessageBox::NoButton, Qt::WindowModal,
+                               failure_details.join(QStringLiteral("\n\n")));
+}
+
 void MenuBar::ExportWiiSaves()
 {
   const QString export_dir = DolphinFileDialog::getExistingDirectory(

Source/Core/DolphinQt/MenuBar.h

@@ -153,6 +153,7 @@ private:
 
   void InstallWAD();
   void ImportWiiSave();
+  void ImportWiiSaves();
   void ExportWiiSaves();
   void CheckNAND();
   void NANDExtractCertificates();
@@ -214,6 +215,7 @@ private:
   QAction* m_extract_certificates;
   std::array<QAction*, 5> m_wii_remotes;
   QAction* m_import_wii_save;
+  QAction* m_import_wii_saves;
   QAction* m_export_wii_saves;
 
   // Emulation

Source/Core/DolphinQt/QtUtils/ModalMessageBox.cpp

@@ -21,7 +21,7 @@ ModalMessageBox::ModalMessageBox(QWidget* parent, Qt::WindowModality modality)
 static inline int ExecMessageBox(ModalMessageBox::Icon icon, QWidget* parent, const QString& title,
                                  const QString& text, ModalMessageBox::StandardButtons buttons,
                                  ModalMessageBox::StandardButton default_button,
-                                 Qt::WindowModality modality)
+                                 Qt::WindowModality modality, QString detailed_text)
 {
   ModalMessageBox msg(parent, modality);
   msg.setIcon(icon);
@@ -29,6 +29,7 @@ static inline int ExecMessageBox(ModalMessageBox::Icon icon, QWidget* parent, co
   msg.setText(text);
   msg.setStandardButtons(buttons);
   msg.setDefaultButton(default_button);
+  msg.setDetailedText(detailed_text);
 
   SetQWidgetWindowDecorations(&msg);
   return msg.exec();
@@ -36,32 +37,32 @@ static inline int ExecMessageBox(ModalMessageBox::Icon icon, QWidget* parent, co
 
 int ModalMessageBox::critical(QWidget* parent, const QString& title, const QString& text,
                               StandardButtons buttons, StandardButton default_button,
-                              Qt::WindowModality modality)
+                              Qt::WindowModality modality, const QString& detailedText)
 {
   return ExecMessageBox(QMessageBox::Critical, parent, title, text, buttons, default_button,
-                        modality);
+                        modality, detailedText);
 }
 
 int ModalMessageBox::information(QWidget* parent, const QString& title, const QString& text,
                                  StandardButtons buttons, StandardButton default_button,
-                                 Qt::WindowModality modality)
+                                 Qt::WindowModality modality, const QString& detailedText)
 {
   return ExecMessageBox(QMessageBox::Information, parent, title, text, buttons, default_button,
-                        modality);
+                        modality, detailedText);
 }
 
 int ModalMessageBox::question(QWidget* parent, const QString& title, const QString& text,
                               StandardButtons buttons, StandardButton default_button,
-                              Qt::WindowModality modality)
+                              Qt::WindowModality modality, const QString& detailedText)
 {
   return ExecMessageBox(QMessageBox::Warning, parent, title, text, buttons, default_button,
-                        modality);
+                        modality, detailedText);
 }
 
 int ModalMessageBox::warning(QWidget* parent, const QString& title, const QString& text,
                              StandardButtons buttons, StandardButton default_button,
-                             Qt::WindowModality modality)
+                             Qt::WindowModality modality, const QString& detailedText)
 {
   return ExecMessageBox(QMessageBox::Warning, parent, title, text, buttons, default_button,
-                        modality);
+                        modality, detailedText);
 }

Source/Core/DolphinQt/QtUtils/ModalMessageBox.h

@@ -13,14 +13,18 @@ public:
 
   static int critical(QWidget* parent, const QString& title, const QString& text,
                       StandardButtons buttons = Ok, StandardButton default_button = NoButton,
-                      Qt::WindowModality modality = Qt::WindowModal);
+                      Qt::WindowModality modality = Qt::WindowModal,
+                      const QString& detailed_text = QString());
   static int information(QWidget* parent, const QString& title, const QString& text,
                          StandardButtons buttons = Ok, StandardButton default_button = NoButton,
-                         Qt::WindowModality modality = Qt::WindowModal);
+                         Qt::WindowModality modality = Qt::WindowModal,
+                         const QString& detailedText = QString());
   static int question(QWidget* parent, const QString& title, const QString& text,
                       StandardButtons buttons = Yes | No, StandardButton default_button = NoButton,
-                      Qt::WindowModality modality = Qt::WindowModal);
+                      Qt::WindowModality modality = Qt::WindowModal,
+                      const QString& detailedText = QString());
   static int warning(QWidget* parent, const QString& title, const QString& text,
                      StandardButtons buttons = Ok, StandardButton default_button = NoButton,
-                     Qt::WindowModality modality = Qt::WindowModal);
+                     Qt::WindowModality modality = Qt::WindowModal,
+                     const QString& detailedText = QString());
 };