From edd38beb67a91d616cb5640072c3b4320c4aba48 Mon Sep 17 00:00:00 2001
From: T-Midnight <belousovatanya1995@yandex.ru>
Date: Sun, 23 Dec 2018 02:22:06 +0400
Subject: [PATCH] Add function getNextDeadline()

---
 src/main/java/ru/ulstu/grant/model/Grant.java | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/src/main/java/ru/ulstu/grant/model/Grant.java b/src/main/java/ru/ulstu/grant/model/Grant.java
index 092317b..1bd7ff9 100644
--- a/src/main/java/ru/ulstu/grant/model/Grant.java
+++ b/src/main/java/ru/ulstu/grant/model/Grant.java
@@ -10,11 +10,7 @@ import ru.ulstu.user.model.User;
 
 import javax.persistence.*;
 import javax.validation.constraints.NotNull;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
+import java.util.*;
 
 @Entity
 public class Grant extends BaseEntity  {
@@ -103,4 +99,13 @@ public class Grant extends BaseEntity  {
     public void setProject(Project project) {
         this.project = project;
     }
+
+    public Optional<Deadline> getNextDeadline() {
+        return deadlines
+                .stream()
+                .filter(deadline -> deadline.getDate() != null)
+                .sorted(Comparator.comparing(Deadline::getDate))
+                .filter(d -> d.getDate().after(new Date()))
+                .findFirst();
+    }
 }