added more sided dialog, added api and added PlayerHandler

src/main/java/eu/mhsl/craftattack/loginServer/DialogState.java

@@ -0,0 +1,61 @@
+package eu.mhsl.craftattack.loginServer;
+
+import java.util.List;
+
+public final class DialogState {
+    public enum Page { secret, data, consent }
+
+    private final List<Page> pages;
+    private int pageIndex = 0;
+
+    String secret = "";
+    String firstName = "";
+    String secondName = "";
+    String birthday = "";
+    String phoneNumber = "";
+    boolean privacyAccepted = false;
+    boolean logsAccepted = false;
+    boolean rulesAccepted = false;
+
+    private DialogState(List<Page> pages) {
+        this.pages = pages;
+    }
+
+    public static DialogState create() {
+        boolean isAfterStart = Main.globalConfig
+                .node("server", "is-after-start")
+                .getBoolean(false);
+
+        return new DialogState(isAfterStart
+                ? List.of(Page.secret, Page.data, Page.consent)
+                : List.of(Page.data, Page.consent));
+    }
+
+    public Page currentPage() {
+        return pages.get(pageIndex);
+    }
+
+    public int pageNumber() {
+        return pageIndex + 1;
+    }
+
+    public int pageCount() {
+        return pages.size();
+    }
+
+    public boolean isFirstPage() {
+        return pageIndex == 0;
+    }
+
+    public boolean isLastPage() {
+        return pageIndex == pages.size() - 1;
+    }
+
+    public void nextPage() {
+        pageIndex = Math.min(pages.size() - 1, pageIndex + 1);
+    }
+
+    public void previousPage() {
+        pageIndex = Math.max(0, pageIndex - 1);
+    }
+}