feat: update

pom.xml

@@ -48,6 +48,13 @@
             <artifactId>jfreechart</artifactId>
             <version>1.5.1</version>
         </dependency>
+        <!-- https://mvnrepository.com/artifact/com.toedter/jcalendar -->
+        <dependency>
+            <groupId>com.toedter</groupId>
+            <artifactId>jcalendar</artifactId>
+            <version>1.4</version>
+        </dependency>
+
 
     </dependencies>
     <name>Quản lý quán trà sữa</name>

src/main/java/controllers/AdminDashboardController.java

@@ -168,6 +168,7 @@ private void onMenuChange(MenuItem item) {
             case "TK":
                 view.setPanel(statisticalView);
                 statisticalController.setView(statisticalView);
+                statisticalController.addEvent();
                 statisticalController.initData();
                 break;
             default:

src/main/java/controllers/admin/StatisticalController.java

@@ -1,7 +1,13 @@
 package controllers.admin;
 
 import dao.StatisticalDao;
+import java.beans.PropertyChangeListener;
+import java.sql.SQLException;
+import java.sql.Timestamp;
 import java.text.DecimalFormat;
+import java.util.Calendar;
+import java.util.Date;
+import utils.Debouncer;
 import utils.IntervalIncrease;
 import views.admin.StatisticalView;
 
@@ -15,6 +21,7 @@ public class StatisticalController {
     StatisticalView view;
     StatisticalDao statisticalDao = new StatisticalDao();
     DecimalFormat formatter = new DecimalFormat("###,###,###");
+    Debouncer debouncer = new Debouncer();
 
     public StatisticalController() {
     }
@@ -28,21 +35,42 @@ public void setView(StatisticalView view) {
     }
 
     public void addEvent() {
+        Runnable onDateChange = () -> {
+            Date startDate = view.getDateChooserStart().getDate();
+            Date endDate = view.getDateChooserEnd().getDate();
+            if (startDate.after(endDate)) {
+                view.showError("Ngày bắt đầu không thể sau ngày kết thúc");
+                return;
+            }
+            try {
+                renderData(new Timestamp(startDate.getTime()), new Timestamp(endDate.getTime()));
+            } catch (SQLException ex) {
+                view.showError(ex);
+            }
 
+        };
+        PropertyChangeListener eventListener = evt -> debouncer.debounce("date_change", onDateChange, 3000);//Chờ 3s không thay đổi mới hiển thị data
+
+        view.getDateChooserStart().addPropertyChangeListener(eventListener);
+        view.getDateChooserEnd().addPropertyChangeListener(eventListener);
     }
 
     public void initData() {
-        try {
-            int totalIncome = statisticalDao.getTotalIncome();
-            view.getLbTotalOrder().setText(statisticalDao.getTotalOrder() + "");
-            view.getLbTotalEmployee().setText(statisticalDao.getTotalEmployee() + "");
-            view.getLbTotalCustomer().setText(statisticalDao.getTotalCustomer() + "");
-            IntervalIncrease.create(totalIncome, 1500, 25, (i) -> {
-                view.getLbTotalIncome().setText(formatter.format(i));
-            });
-        } catch (Exception e) {
-            view.showError(e);
-        }
+        Calendar c = Calendar.getInstance();
+        c.setTime(new Date(System.currentTimeMillis()));
+        view.getDateChooserEnd().setCalendar(c);
+        c.add(Calendar.DATE, -30);
+        view.getDateChooserStart().setCalendar(c);
+    }
+
+    public void renderData(Timestamp start, Timestamp end) throws SQLException {
+        int totalIncome = statisticalDao.getTotalIncome(start, end);
+        view.getLbTotalOrder().setText(statisticalDao.getTotalOrder(start, end) + "");
+        view.getLbTotalEmployee().setText(statisticalDao.getTotalEmployee() + "");
+        view.getLbTotalCustomer().setText(statisticalDao.getTotalCustomer() + "");
+        IntervalIncrease.create(totalIncome, 1500, 25, (i) -> {
+            view.getLbTotalIncome().setText(formatter.format(i));
+        });
     }
 
 }

src/main/java/utils/Debouncer.java

@@ -0,0 +1,48 @@
+package utils;
+
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * createAt Jan 2, 2021
+ *
+ * @author Đỗ Tuấn Anh <[email protected]>
+ */
+public class Debouncer {
+
+    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();
+    private final ConcurrentHashMap<Object, Future<?>> delayedMap = new ConcurrentHashMap<>();
+
+    public void debounce(final Object key, final Runnable runnable, long delay) {
+        final Future<?> prev = delayedMap.put(key, scheduler.schedule(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    runnable.run();
+                } finally {
+                    delayedMap.remove(key);
+                }
+            }
+        }, delay, TimeUnit.MILLISECONDS));
+        if (prev != null) {
+            prev.cancel(true);
+        }
+    }
+
+    public void shutdown() {
+        scheduler.shutdownNow();
+    }
+
+    public static void main(String[] args) {
+        Debouncer debouncer = new Debouncer();
+        debouncer.debounce(Void.class, () -> {
+            System.out.println("123123");
+        }, 0);
+        debouncer.debounce(Void.class, () -> {
+            System.out.println("1231234");
+        }, 300);
+    }
+}