Add private evidence autosaving into inventories/autosave.ini (#778)

* Add private evidence autosaving into inventories/autosave.ini

* Make evidence autosave more robust by accounting for evidence transfers and deleteions
Fix the ini not using UTF-8 codec
Correct save/load functions working on local evidence list (displayed) rather than the proper private one

* set ini codec

Co-authored-by: oldmud0 <oldmud0@users.noreply.github.com>

Co-authored-by: Salanto <62221668+Salanto@users.noreply.github.com>
Co-authored-by: stonedDiscord <Tukz@gmx.de>
Co-authored-by: oldmud0 <oldmud0@users.noreply.github.com>

2 files changed, 61 insertions, 29 deletions

diff --git a/include/courtroom.h b/include/courtroom.h
index d2d4107f..d981bffd 100644
--- a/include/courtroom.h
+++ b/include/courtroom.h
@@ -986,6 +986,8 @@ private slots:
   void evidence_switch(bool global);
   void on_evidence_save_clicked();
   void on_evidence_load_clicked();
+  void evidence_save(QString filename);
+  void evidence_load(QString filename);
   bool compare_evidence_changed(evi_type evi_a, evi_type evi_b);
 
   void on_back_to_lobby_clicked();
diff --git a/src/evidence.cpp b/src/evidence.cpp
index 13634ec0..7fcad61b 100644
--- a/src/evidence.cpp
+++ b/src/evidence.cpp
@@ -103,6 +103,7 @@ void Courtroom::initialize_evidence()
           &Courtroom::on_evidence_edited);
 
   ui_evidence->hide();
+  evidence_load("inventories/autosave.ini");
 }
 
 void Courtroom::refresh_evidence()
@@ -571,6 +572,9 @@ void Courtroom::on_evidence_delete_clicked()
     local_evidence_list.remove(current_evidence);
     private_evidence_list = local_evidence_list;
     set_evidence_page();
+
+    // Autosave private evidence
+    evidence_save("inventories/autosave.ini");
   }
 
   current_evidence = 0;
@@ -634,6 +638,11 @@ void Courtroom::on_evidence_ok_clicked()
       set_evidence_page();
     }
   }
+
+  // Autosave private evidence
+  if (!current_evidence_global) {
+    evidence_save("inventories/autosave.ini");
+  }
 }
 
 void Courtroom::on_evidence_switch_clicked()
@@ -664,6 +673,9 @@ void Courtroom::on_evidence_transfer_clicked()
     evi_type f_evi = local_evidence_list.at(current_evidence);
     name = f_evi.name;
     private_evidence_list.append(f_evi);
+
+    // Autosave private evidence
+    evidence_save("inventories/autosave.ini");
   }
 
   QMessageBox *msgBox = new QMessageBox;
@@ -743,25 +755,19 @@ void Courtroom::on_evidence_save_clicked()
     return; // Don't allow saving/loading operations when in global inventory
             // mode for now
 
+  // "Inventories" dir keeps our private evidence data
+  if (!dir_exists("inventories")) {
+    // Create one if it doesn't yet exist
+    QDir("inventories").mkdir("inventories");
+  }
+
   QString p_path = QFileDialog::getSaveFileName(
-      this, tr("Save Inventory"), "base/inventories/", tr("Ini Files (*.ini)"));
-  if (p_path.isEmpty())
-    return;
+      this, tr("Save Inventory"), "inventories/", tr("Ini Files (*.ini)"));
 
   evidence_close();
   ui_evidence_name->setText("");
 
-  QSettings inventory(p_path, QSettings::IniFormat);
-  inventory.setIniCodec("UTF-8");
-  inventory.clear();
-  for (int i = 0; i < local_evidence_list.size(); i++) {
-    inventory.beginGroup(QString::number(i));
-    inventory.setValue("name", local_evidence_list[i].name);
-    inventory.setValue("description", local_evidence_list[i].description);
-    inventory.setValue("image", local_evidence_list[i].image);
-    inventory.endGroup();
-  }
-  inventory.sync();
+  evidence_save(p_path);
 }
 
 void Courtroom::on_evidence_load_clicked()
@@ -771,35 +777,59 @@ void Courtroom::on_evidence_load_clicked()
             // mode for now
 
   QString p_path = QFileDialog::getOpenFileName(
-      this, tr("Open Inventory"), "base/inventories/", tr("Ini Files (*.ini)"));
+      this, tr("Open Inventory"), "inventories/", tr("Ini Files (*.ini)"));
   if (p_path.isEmpty())
     return;
 
   evidence_close();
   ui_evidence_name->setText("");
+  evidence_load(p_path);
+  local_evidence_list = private_evidence_list;
+  set_evidence_page();
+}
 
-  QSettings inventory(p_path, QSettings::IniFormat);
-  inventory.setIniCodec("UTF-8");
-  local_evidence_list.clear();
-  QMap<int, QString> sorted_evi;
-  for (const auto &s : inventory.childGroups()) {
-    sorted_evi[s.toInt()] = s;
+void Courtroom::evidence_load(QString filename)
+{
+  if (!file_exists(filename)) {
+    qWarning() << "Trying to load a non-existant evidence save file:" << filename;
+    return;
   }
-  QStringList evilist(sorted_evi.values());
-  for (const QString &evi : evilist) {
+  QSettings inventory(filename, QSettings::IniFormat);
+  inventory.setIniCodec("UTF-8");
+  private_evidence_list.clear();
+  foreach (QString evi, inventory.childGroups()) {
     if (evi == "General")
       continue;
 
     evi_type f_evi;
-    f_evi.name = inventory.value(evi + "/name", tr("UNKNOWN")).value<QString>();
+    f_evi.name = inventory.value(evi + "/name", "<name>").value<QString>();
     f_evi.description =
-        inventory.value(evi + "/description", tr("UNKNOWN")).value<QString>();
+        inventory.value(evi + "/description", "<description>").value<QString>();
     f_evi.image =
-        inventory.value(evi + "/image", "UNKNOWN.png").value<QString>();
-    local_evidence_list.append(f_evi);
+        inventory.value(evi + "/image", "empty.png").value<QString>();
+    private_evidence_list.append(f_evi);
   }
-  private_evidence_list = local_evidence_list;
-  set_evidence_page();
+}
+
+void Courtroom::evidence_save(QString filename)
+{
+  // "Inventories" dir keeps our private evidence data
+  if (!dir_exists("inventories")) {
+    // Create one if it doesn't yet exist
+    QDir("inventories").mkdir("inventories");
+  }
+
+  QSettings inventory(filename, QSettings::IniFormat);
+  inventory.setIniCodec("UTF-8");
+  inventory.clear();
+  for (int i = 0; i < private_evidence_list.size(); i++) {
+    inventory.beginGroup(QString::number(i));
+    inventory.setValue("name", private_evidence_list[i].name);
+    inventory.setValue("description", private_evidence_list[i].description);
+    inventory.setValue("image", private_evidence_list[i].image);
+    inventory.endGroup();
+  }
+  inventory.sync();
 }
 
 bool Courtroom::compare_evidence_changed(evi_type evi_a, evi_type evi_b)