few fix and begin of cache module

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

@@ -1,17 +1,14 @@
 package dev.mateuszkowalczyk.ffm.app;
 
-import dev.mateuszkowalczyk.ffm.data.database.image.Photo;
+import dev.mateuszkowalczyk.ffm.data.database.photo.Photo;
-import dev.mateuszkowalczyk.ffm.data.database.image.PhotoDAO;
+import dev.mateuszkowalczyk.ffm.data.database.photo.PhotoDAO;
 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 java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.ArrayList;

src/main/java/dev/mateuszkowalczyk/ffm/app/cache/CacheService.java

@@ -0,0 +1,14 @@
+package dev.mateuszkowalczyk.ffm.app.cache;
+
+public class CacheService {
+    private static final CacheService instance = new CacheService();
+
+    private CacheService () {
+        CacheStructureChecker cacheStructureChecker = new CacheStructureChecker();
+        cacheStructureChecker.check();
+    }
+
+    public static CacheService getInstance() {
+        return instance;
+    }
+}

src/main/java/dev/mateuszkowalczyk/ffm/app/cache/CacheStructureChecker.java

@@ -0,0 +1,44 @@
+package dev.mateuszkowalczyk.ffm.app.cache;
+
+import dev.mateuszkowalczyk.ffm.utils.PropertiesLoader;
+import dev.mateuszkowalczyk.ffm.utils.Property;
+
+import java.io.File;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.List;
+
+public class CacheStructureChecker {
+    private String path = PropertiesLoader.getInstance().get(Property.PATH_TO_DIRECTORY) + "/.cache";
+    private List<String> listToCheck = new ArrayList<String>();
+
+    public void check() {
+        this.setupPathsToCheck();
+
+        this.listToCheck.forEach(s -> this.checkDirectory(s));
+    }
+
+    private void setupPathsToCheck() {
+        this.listToCheck.add(this.path);
+        this.listToCheck.add(this.path + "/thumbnails");
+    }
+
+
+    private void checkDirectory(String path) {
+        if (!this.directoryExists(path)) {
+            this.createDirectory(path);
+        }
+    }
+
+    private void createDirectory(String path) {
+        File file = new File(path);
+
+        file.mkdir();
+    }
+
+    private boolean directoryExists(String path) {
+        File file = new File(path);
+
+        return file.exists();
+    }
+}

src/main/java/dev/mateuszkowalczyk/ffm/data/DatabaseService.java

@@ -1,5 +1,6 @@
 package dev.mateuszkowalczyk.ffm.data;
 
+import dev.mateuszkowalczyk.ffm.data.database.utils.DatabaseCreator;
 import dev.mateuszkowalczyk.ffm.utils.ResourceLoader;
 
 import java.sql.Connection;

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

@@ -1,13 +1,13 @@
-package dev.mateuszkowalczyk.ffm.data.database.image;
+package dev.mateuszkowalczyk.ffm.data.database.photo;
 
 import dev.mateuszkowalczyk.ffm.data.database.annotation.Column;
 import dev.mateuszkowalczyk.ffm.data.database.annotation.PrimaryKey;
 import dev.mateuszkowalczyk.ffm.data.database.annotation.Table;
 
-@Table(name = "photo")
+@Table(name = "photos")
 public class Photo {
 
-    @Column
+    @Column(type = Column.Type.INT)
     @PrimaryKey
     private long id;
 

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

@@ -1,4 +1,4 @@
-package dev.mateuszkowalczyk.ffm.data.database.image;
+package dev.mateuszkowalczyk.ffm.data.database.photo;
 
 import dev.mateuszkowalczyk.ffm.data.DatabaseService;
 import dev.mateuszkowalczyk.ffm.data.database.Dao;

src/main/java/dev/mateuszkowalczyk/ffm/data/database/utils/DatabaseCreator.java

@@ -1,7 +1,6 @@
-package dev.mateuszkowalczyk.ffm.data;
+package dev.mateuszkowalczyk.ffm.data.database.utils;
 
-import dev.mateuszkowalczyk.ffm.data.database.image.Photo;
+import dev.mateuszkowalczyk.ffm.data.database.photo.Photo;
-import dev.mateuszkowalczyk.ffm.data.database.utils.TableCreator;
 import dev.mateuszkowalczyk.ffm.utils.ResourceLoader;
 
 import java.sql.Connection;
@@ -32,6 +31,6 @@ public class DatabaseCreator {
     private void createTables(Connection connection) {
         TableCreator creator = new TableCreator(connection);
 
-        creator.create("photos", new Photo());
+        creator.create(Photo.class);
     }
 }

src/main/java/dev/mateuszkowalczyk/ffm/data/database/utils/TableCreator.java

@@ -3,6 +3,7 @@ package dev.mateuszkowalczyk.ffm.data.database.utils;
 import dev.mateuszkowalczyk.ffm.data.DatabaseService;
 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.lang.reflect.Field;
 import java.lang.reflect.Type;
@@ -13,17 +14,17 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class TableCreator {
-
+    private TableMapper tableMapper = new TableMapper();
     private final Connection connection;
 
     public TableCreator(Connection connection) {
         this.connection = connection;
     }
 
-    public void create(String name, Object object) {
+    public void create(Class object) {
-        String sql = "CREATE TABLE IF NOT EXISTS " + name;
+        String sql = "CREATE TABLE IF NOT EXISTS " + this.tableMapper.getName(object);
 
-        Field[] fields = object.getClass().getDeclaredFields();
+        Field[] fields = object.getDeclaredFields();
 
         sql += this.addFields(fields);
 

src/main/java/dev/mateuszkowalczyk/ffm/data/database/utils/TableMapper.java

@@ -0,0 +1,18 @@
+package dev.mateuszkowalczyk.ffm.data.database.utils;
+
+import dev.mateuszkowalczyk.ffm.data.database.annotation.Table;
+
+public class TableMapper {
+
+    public String getName(Class object) {
+        if (object.isAnnotationPresent(Table.class)) {
+            Table annotation = (Table) object.getAnnotation(Table.class);
+            String name = annotation.name();
+            if (name.length() > 0) {
+                return name;
+            }
+        }
+
+        return object.getSimpleName().toLowerCase();
+    }
+}