feat(creation): add file-based fill settings and strategy

- add FileFillSettings and FileFillStrategy
- add file path type selection
- add FileDataSettingsWindow for file configuration

app/src/main/java/ru/project/ui/creation/file/FileDataSettingsWindow.java

@@ -0,0 +1,78 @@
+package ru.project.ui.creation.file;
+
+import com.googlecode.lanterna.gui2.Button;
+import com.googlecode.lanterna.gui2.Label;
+import com.googlecode.lanterna.gui2.LinearLayout;
+import com.googlecode.lanterna.gui2.Panel;
+import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
+import com.googlecode.lanterna.gui2.dialogs.FileDialog;
+import com.googlecode.lanterna.gui2.dialogs.FileDialogBuilder;
+import java.io.File;
+import java.util.function.Consumer;
+import ru.project.ui.base.BaseModalWindow;
+
+public class FileDataSettingsWindow extends BaseModalWindow {
+
+  // private final StudentBuilder studentBuilder;
+
+  private final FileFillSettings settings;
+  private final Consumer<FileFillSettings> onApply;
+
+  private final Label filePathLabel;
+
+  public FileDataSettingsWindow(WindowBasedTextGUI gui, Consumer<FileFillSettings> onApply) {
+
+    super("Данные из файла", gui);
+
+    this.onApply = onApply;
+
+    this.settings = new FileFillSettings();
+    // this.studentBuilder = new StudentBuilder();
+
+    Panel panel = new Panel();
+    panel.setLayoutManager(new LinearLayout());
+
+    filePathLabel = new Label("Абсолютный путь: " + getFilePathLabel());
+
+    panel.addComponent(filePathLabel);
+
+    panel.addComponent(new Button("Выбрать файл", this::selectFile));
+
+    panel.addComponent(new Button("Применить", this::apply));
+
+    panel.addComponent(new Button("Выйти", this::close));
+
+    setComponent(panel);
+  }
+
+  private void selectFile() {
+    FileDialog fileDialog =
+        new FileDialogBuilder()
+            .setTitle("Выбор файла")
+            .setDescription("Выберите файл:")
+            .setActionLabel("Открыть")
+            .build();
+
+    File selectedFile = fileDialog.showDialog(gui);
+
+    if (selectedFile == null) {
+      return;
+    }
+
+    settings.setAbsoluteFilePath(selectedFile.getAbsolutePath());
+
+    filePathLabel.setText("Абсолютный путь: " + settings.getAbsoluteFilePath());
+  }
+
+  private void apply() {
+    onApply.accept(settings);
+
+    close();
+  }
+
+  private String getFilePathLabel() {
+    String filePath = settings.getAbsoluteFilePath();
+
+    return filePath == null || filePath.isBlank() ? "не задан" : filePath;
+  }
+}

app/src/main/java/ru/project/ui/creation/file/FileFillSettings.java

@@ -0,0 +1,18 @@
+package ru.project.ui.creation.file;
+
+public class FileFillSettings {
+
+  private String absoluteFilePath;
+
+  public FileFillSettings() {
+    this.absoluteFilePath = null;
+  }
+
+  public String getAbsoluteFilePath() {
+    return absoluteFilePath;
+  }
+
+  public void setAbsoluteFilePath(String absoluteFilePath) {
+    this.absoluteFilePath = absoluteFilePath;
+  }
+}

app/src/main/java/ru/project/ui/creation/file/FileFillStrategy.java

@@ -0,0 +1,19 @@
+package ru.project.ui.creation.file;
+
+import ru.project.collection.MyList;
+import ru.project.student.Student;
+import ru.project.ui.creation.FillStrategy;
+
+public class FileFillStrategy implements FillStrategy {
+
+  // private final FileFillSettings settings;
+
+  public FileFillStrategy(FileFillSettings settings) {
+    // this.settings = settings;
+  }
+
+  @Override
+  public MyList<Student> create() {
+    return null;
+  }
+}

app/src/main/java/ru/project/ui/creation/file/FilePathType.java

@@ -0,0 +1,6 @@
+package ru.project.ui.creation.file;
+
+public enum FilePathType {
+  ABSOLUTE,
+  RELATIVE
+}

app/src/main/java/ru/project/ui/creation/file/FilePathTypeSelectionWindow.java

@@ -0,0 +1,34 @@
+package ru.project.ui.creation.file;
+
+import com.googlecode.lanterna.gui2.ActionListBox;
+import com.googlecode.lanterna.gui2.WindowBasedTextGUI;
+import java.util.function.Consumer;
+import ru.project.ui.base.BaseModalWindow;
+
+public class FilePathTypeSelectionWindow extends BaseModalWindow {
+
+  private final Consumer<FilePathType> onPathTypeSelected;
+
+  public FilePathTypeSelectionWindow(
+      WindowBasedTextGUI gui, Consumer<FilePathType> onPathTypeSelected) {
+
+    super("Выбор типа пути", gui);
+
+    this.onPathTypeSelected = onPathTypeSelected;
+
+    ActionListBox menu = new ActionListBox();
+
+    menu.addItem("Абсолютный", () -> selectPathType(FilePathType.ABSOLUTE));
+
+    menu.addItem("Относительный", () -> selectPathType(FilePathType.RELATIVE));
+
+    menu.addItem("Выйти", this::close);
+
+    setComponent(menu);
+  }
+
+  private void selectPathType(FilePathType pathType) {
+    onPathTypeSelected.accept(pathType);
+    close();
+  }
+}