feat: GUID

CarManagerV3/SafeManager.cs

@@ -17,6 +17,7 @@ namespace CarManagerV3
         /// </summary>
         private static readonly string recentPathsFile = "recent_paths.txt";
 
+
         /// <summary>
         /// Initializes a file at a specified path if it does not already exist.
         /// </summary>
@@ -52,6 +53,7 @@ namespace CarManagerV3
         {
             List<Car> cars = new List<Car>();
             List<string> failedLines = new List<string>();
+            bool isLegacy = false;
             try
             {
                 using (StreamReader reader = new StreamReader(@path))
@@ -61,17 +63,35 @@ namespace CarManagerV3
                     {
                         // Process the line
                         if (line == "") continue;
+                        if (Car.isLegacyCsvString(line))
+                        {
+                            if (!StateManager.askForMigration())
+                            {
+                                MessageBox.Show("The file you are trying to open is in an old format that is no longer supported. Please select a different file.", "Unsupported Format", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                                throw new LegacyException();
+                                //Environment.Exit(0);
+                            }
+                            else
+                            {
+                                isLegacy = true;
+                            }
+                        }
                         Car tmp = Car.FromCsvString(line);
                         if (tmp == null)
                         {
                             failedLines.Add(line);
                             continue;
-                        } 
+                        }
                         cars.Add(tmp);
                     }
                     reader.Close();
                 }
-            } catch (Exception ex)
+            }
+            catch (LegacyException ex)
+            {
+                throw ex;
+            }
+            catch (Exception ex)
             {
                 Console.Error.WriteLine($"Error reading cars from file: {ex.Message}");
             }
@@ -84,6 +104,11 @@ namespace CarManagerV3
                 }
                 MessageBox.Show($"Warning: {failedLines.Count} lines in the file could not be parsed and were skipped. Check the console for details.", "Parsing Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
             }
+            cars = cars.OrderBy(c => c.Order).ToList();
+            if(isLegacy)
+            {
+                SafeManager.SaveCars(path, cars);
+            }
             return cars;
         }
 
@@ -104,7 +129,8 @@ namespace CarManagerV3
                     }
                     writer.Close();
                 }
-            } catch (Exception ex)
+            }
+            catch (Exception ex)
             {
                 Console.Error.WriteLine($"Error saving cars to file: {ex.Message}");
                 MessageBox.Show($"Error saving cars to file: {ex.Message}", "Save Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
@@ -149,7 +175,8 @@ namespace CarManagerV3
                     }
                     writer.Close();
                 }
-            } catch (Exception ex)
+            }
+            catch (Exception ex)
             {
                 Console.Error.WriteLine($"Error managing recent paths: {ex.Message}");
             }
@@ -178,11 +205,14 @@ namespace CarManagerV3
                         reader.Close();
                     }
                 }
-            } catch (Exception ex)
+            }
+            catch (Exception ex)
             {
                 Console.Error.WriteLine($"Error reading recent paths: {ex.Message}");
             }
             return paths;
         }
+
+        
     }
 }