feat(creation): complete random fill settings

app/src/main/java/ru/project/ui/creation/random/RandomDataSettingsWindow.java

@@ -15,6 +15,7 @@ public class RandomDataSettingsWindow extends BaseModalWindow {
   private final RandomFillSettings settings;
   private final Consumer<RandomFillSettings> onApply;
 
+  private final Label collectionSizeLabel;
   private final Label minGroupNumberLabel;
   private final Label maxGroupNumberLabel;
   private final Label minAverageGradeLabel;
@@ -32,6 +33,10 @@ public class RandomDataSettingsWindow extends BaseModalWindow {
     Panel panel = new Panel();
     panel.setLayoutManager(new LinearLayout());
 
+    collectionSizeLabel =
+        new Label("Размер коллекции: " + getValueOrDefault(settings.getCollectionSize()));
+
+    panel.addComponent(collectionSizeLabel);
     minGroupNumberLabel =
         new Label("Минимальный номер группы: " + getValueOrDefault(settings.getMinGroupNumber()));
 
@@ -61,6 +66,8 @@ public class RandomDataSettingsWindow extends BaseModalWindow {
     panel.addComponent(minRecordBookNumberLabel);
     panel.addComponent(maxRecordBookNumberLabel);
 
+    panel.addComponent(new Button("Задать размер коллекции...", this::setCollectionSize));
+
     panel.addComponent(new Button("Задать минимальный номер группы", this::setMinGroupNumber));
 
     panel.addComponent(new Button("Задать максимальный номер группы", this::setMaxGroupNumber));
@@ -82,6 +89,41 @@ public class RandomDataSettingsWindow extends BaseModalWindow {
     setComponent(panel);
   }
 
+  private void setCollectionSize() {
+    InputValueWindow window =
+        new InputValueWindow(
+            gui,
+            "Размер коллекции",
+            "Введите размер коллекции:",
+            settings.getCollectionSize() == null
+                ? null
+                : String.valueOf(settings.getCollectionSize()),
+            value -> {
+              try {
+                int collectionSize = Integer.parseInt(value);
+
+                if (collectionSize <= 0) {
+                  MessageWindow.showModal(gui, "Размер коллекции должен быть больше 0.");
+
+                  return false;
+                }
+
+                settings.setCollectionSize(collectionSize);
+
+                collectionSizeLabel.setText("Размер коллекции: " + collectionSize);
+
+                return true;
+
+              } catch (NumberFormatException e) {
+                MessageWindow.showModal(gui, "Введите целое число.");
+
+                return false;
+              }
+            });
+
+    window.showModal();
+  }
+
   private void setMinGroupNumber() {
     showGroupNumberInput(
         "Минимальный номер группы",
@@ -302,6 +344,12 @@ public class RandomDataSettingsWindow extends BaseModalWindow {
   }
 
   private void apply() {
+    if (settings.getCollectionSize() == null) {
+      MessageWindow.showModal(gui, "Сначала задайте размер коллекции.");
+
+      return;
+    }
+
     onApply.accept(settings);
 
     MessageWindow.showModal(gui, "Настройки создания коллекции случайно успешно применены.");

app/src/main/java/ru/project/ui/creation/random/RandomFillSettings.java

@@ -2,6 +2,8 @@ package ru.project.ui.creation.random;
 
 public class RandomFillSettings {
 
+  private Integer collectionSize;
+
   private String minGroupNumber;
   private String maxGroupNumber;
 
@@ -12,6 +14,8 @@ public class RandomFillSettings {
   private Integer maxRecordBookNumber;
 
   public RandomFillSettings() {
+    this.collectionSize = null;
+
     this.minGroupNumber = null;
     this.maxGroupNumber = null;
 
@@ -22,6 +26,14 @@ public class RandomFillSettings {
     this.maxRecordBookNumber = null;
   }
 
+  public Integer getCollectionSize() {
+    return collectionSize;
+  }
+
+  public void setCollectionSize(Integer collectionSize) {
+    this.collectionSize = collectionSize;
+  }
+
   public String getMinGroupNumber() {
     return minGroupNumber;
   }

app/src/main/java/ru/project/ui/creation/random/RandomFillStrategy.java

@@ -1,19 +1,46 @@
 package ru.project.ui.creation.random;
 
 import ru.project.collection.MyList;
+import ru.project.random.RandomStudentGenerator;
 import ru.project.student.Student;
 import ru.project.ui.creation.FillStrategy;
 
 public class RandomFillStrategy implements FillStrategy {
 
-  // private final RandomFillSettings settings;
+  private final RandomFillSettings settings;
 
   public RandomFillStrategy(RandomFillSettings settings) {
-    // this.settings = settings;
+    this.settings = settings;
   }
 
   @Override
   public MyList<Student> create() {
-    return null;
+    RandomStudentGenerator generator = new RandomStudentGenerator();
+
+    if (settings.getMinGroupNumber() != null) {
+      generator.setMinGroupNumber(settings.getMinGroupNumber());
+    }
+
+    if (settings.getMaxGroupNumber() != null) {
+      generator.setMaxGroupNumber(settings.getMaxGroupNumber());
+    }
+
+    if (settings.getMinAverageGrade() != null) {
+      generator.setMinAverageGrade(settings.getMinAverageGrade());
+    }
+
+    if (settings.getMaxAverageGrade() != null) {
+      generator.setMaxAverageGrade(settings.getMaxAverageGrade());
+    }
+
+    if (settings.getMinRecordBookNumber() != null) {
+      generator.setMinRecordBookNumber(settings.getMinRecordBookNumber());
+    }
+
+    if (settings.getMaxRecordBookNumber() != null) {
+      generator.setMaxRecordBookNumber(settings.getMaxRecordBookNumber());
+    }
+
+    return generator.generate(settings.getCollectionSize());
   }
 }