From b0eecb708acb091048ba6ffee15a4cecab8aaba9 Mon Sep 17 00:00:00 2001
From: ScarletRedMan <terentev.andrey.2002@gmail.com>
Date: Thu, 16 Nov 2023 21:03:11 +0700
Subject: [PATCH] Added search field

---
 .../loadbalancer/web/component/NodeList.java  | 33 +++++++++++++++----
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/LoadBalancerWeb/src/main/java/ru/dragonestia/loadbalancer/web/component/NodeList.java b/LoadBalancerWeb/src/main/java/ru/dragonestia/loadbalancer/web/component/NodeList.java
index efaaa50..61d7a6b 100644
--- a/LoadBalancerWeb/src/main/java/ru/dragonestia/loadbalancer/web/component/NodeList.java
+++ b/LoadBalancerWeb/src/main/java/ru/dragonestia/loadbalancer/web/component/NodeList.java
@@ -2,7 +2,10 @@ package ru.dragonestia.loadbalancer.web.component;
 
 import com.vaadin.flow.component.grid.Grid;
 import com.vaadin.flow.component.html.H2;
+import com.vaadin.flow.component.icon.Icon;
+import com.vaadin.flow.component.icon.VaadinIcon;
 import com.vaadin.flow.component.orderedlayout.VerticalLayout;
+import com.vaadin.flow.component.textfield.TextField;
 import ru.dragonestia.loadbalancer.web.model.Node;
 
 import java.util.List;
@@ -10,16 +13,38 @@ import java.util.List;
 public class NodeList extends VerticalLayout {
 
     private final Grid<Node> nodesGrid;
+    private final TextField searchField;
+    private List<Node> cachedNodes;
 
     public NodeList(List<Node> nodes) {
         super();
 
+        cachedNodes = nodes;
+
         add(new H2("Nodes"));
+        add(searchField = createSearchField());
         add(nodesGrid = createGrid());
 
         update(nodes);
     }
 
+    private TextField createSearchField() {
+        var field = new TextField("Search node");
+        field.setPrefixComponent(new Icon(VaadinIcon.SEARCH));
+        field.setClearButtonVisible(true);
+        field.setHelperText("Press Enter to search");
+        field.addValueChangeListener(event -> applySearch(event.getValue()));
+        return field;
+    }
+
+    private void applySearch(String input) {
+        var temp = input.trim();
+
+        nodesGrid.setItems(cachedNodes.stream()
+                .filter(node -> node.identifier().startsWith(temp))
+                .toList());
+    }
+
     private Grid<Node> createGrid() {
         var grid = new Grid<>(Node.class, false);
         grid.addColumn(Node::identifier).setHeader("Identifier");
@@ -28,7 +53,8 @@ public class NodeList extends VerticalLayout {
     }
 
     public void update(List<Node> nodes) {
-        nodesGrid.setItems(nodes);
+        cachedNodes = nodes;
+        applySearch(searchField.getValue());
     }
 
     private void registerNode(Node node) {
@@ -36,9 +62,4 @@ public class NodeList extends VerticalLayout {
 
         update(List.of(node));
     }
-
-    public interface OnRegister {
-
-        List<Node> register(Node node);
-    }
 }