add skip process image when in known

src/main/java/dev/mateuszkowalczyk/ffm/app/DirectoryScanner.java

@@ -7,6 +7,7 @@ import dev.mateuszkowalczyk.ffm.image.ThumbnailService;
 import dev.mateuszkowalczyk.ffm.utils.PropertiesLoader;
 import dev.mateuszkowalczyk.ffm.utils.Property;
 import javafx.application.Platform;
+import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.image.PixelWriter;
 import javafx.scene.image.WritableImage;
@@ -36,8 +37,16 @@ public class DirectoryScanner implements Runnable {
                     .filter(Files::isRegularFile)
                     .forEach(path -> {
                         String filename = path.getFileName().toString();
+                        ImageView imageView;
+
                         if(this.isImagePath(filename) && !path.toString().contains(".cache")) {
-                            Photo photo = new Photo();
+                            Photo photo;
+
+                            photo = this.photoDAO.findByPath(path.toString());
+
+                            if (photo == null) {
+                                photo = new Photo();
+
                                 photo.setPath(path.toString());
                                 photo.setFileName(filename);
 
@@ -61,9 +70,13 @@ public class DirectoryScanner implements Runnable {
 
                                 new FaceDetector(photo).run();
 
-                            ImageView imageView = new ImageView(wr);
+                                imageView = new ImageView(wr);
                                 imageViews.add(imageView);
 
+                            } else {
+                                Image image = new Image("file:" + photo.getCachedPath());
+                                imageView = new ImageView(image);
+                            }
                             Platform.runLater(() -> WorkspaceService.getInstance().getMainPageController().addImage(imageView));
                         }
                     });

src/main/java/dev/mateuszkowalczyk/ffm/data/database/photo/Photo.java

@@ -4,6 +4,9 @@ import dev.mateuszkowalczyk.ffm.data.database.annotation.Column;
 import dev.mateuszkowalczyk.ffm.data.database.annotation.PrimaryKey;
 import dev.mateuszkowalczyk.ffm.data.database.annotation.Table;
 
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
 @Table(name = "photos")
 public class Photo {
 
@@ -17,6 +20,17 @@ public class Photo {
     @Column
     private String cachedPath;
 
+    public Photo() {
+
+    }
+
+    public Photo(ResultSet resultSet) throws SQLException {
+        this.id = resultSet.getInt("id");
+        this.path = resultSet.getString("path");
+        this.fileName = resultSet.getString("fileName");
+        this.cachedPath = resultSet.getString("cachedPath");
+    }
+
     public String getFileName() {
         return fileName;
     }

src/main/java/dev/mateuszkowalczyk/ffm/data/database/photo/PhotoDAO.java

@@ -53,6 +53,26 @@ public class PhotoDAO implements Dao<Photo> {
 
     }
 
+    public Photo findByPath(String path) {
+        String sql = "SELECT * FROM photos WHERE path = ?";
+        Photo photo = null;
+
+        try {
+            PreparedStatement preparedStatement = this.databaseService.getConnection().prepareStatement(sql);
+            preparedStatement.setString(1, path);
+            ResultSet resultSet = preparedStatement.executeQuery();
+
+            while (resultSet.next()) {
+                photo = new Photo(resultSet);
+            }
+
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        return photo;
+    }
+
     @Override
     public void update(Photo photo) {