From 29866e100a22e435c13dc7dd8c95d062b1c12e9d Mon Sep 17 00:00:00 2001
From: A1WAYSD <yujl2004@163.com>
Date: Wed, 13 Sep 2023 16:24:16 +0800
Subject: [PATCH] Add reminder

---
 data/duke.txt                         |  6 +++-
 src/main/java/duke/Parser.java        |  4 ++-
 src/main/java/duke/task/Deadline.java |  4 +++
 src/main/java/duke/task/TaskList.java | 44 +++++++++++++++++++++++++++
 4 files changed, 56 insertions(+), 2 deletions(-)

diff --git a/data/duke.txt b/data/duke.txt
index 19b34ef450..5c0a00dab4 100644
--- a/data/duke.txt
+++ b/data/duke.txt
@@ -1,4 +1,8 @@
 TODO | 0 | hihi
 TODO | 0 | test
 TODO | 0 | test
-TODO | 0 | test??
\ No newline at end of file
+TODO | 0 | test??
+DEADLINE | 0 | test1 | hi
+DEADLINE | 0 | test2 | yes
+DEADLINE | 0 | test3 | 2023-12-12date 
+DEADLINE | 0 | test4 | 2004-01-20date 
\ No newline at end of file
diff --git a/src/main/java/duke/Parser.java b/src/main/java/duke/Parser.java
index c13de63777..6c95ccb318 100644
--- a/src/main/java/duke/Parser.java
+++ b/src/main/java/duke/Parser.java
@@ -59,8 +59,10 @@ public String parse(String... inputs) throws DukeException {
             return this.tasks.markTask(taskIndex, isDone);
         } else if (taskMatcher.matches()) {
             return this.tasks.addTask(TaskType.valueOf(taskMatcher.group(1).toUpperCase()), taskMatcher.group(2));
-        } else if (repeat.contains("list") || repeat.contains("List")) {
+        } else if (repeat.equals("list") || repeat.equals("List")) {
             return this.tasks.getTasks();
+        } else if (repeat.equals("reminder")) {
+            return this.tasks.getReminder();
         } else {
             throw new DukeException("undefined");
         }
diff --git a/src/main/java/duke/task/Deadline.java b/src/main/java/duke/task/Deadline.java
index df3641f3da..c7d4e3c522 100644
--- a/src/main/java/duke/task/Deadline.java
+++ b/src/main/java/duke/task/Deadline.java
@@ -66,4 +66,8 @@ public String toTxt() {
         return this.by != null ? super.toTxt() + this.description + " | " + this.by + this.byDescription : super.toTxt()
                 + this.description + " | " + this.byDescription;
     }
+
+    public LocalDate getByDate() {
+        return this.by;
+    }
 }
diff --git a/src/main/java/duke/task/TaskList.java b/src/main/java/duke/task/TaskList.java
index 3a732ec3d6..a2db85ccac 100644
--- a/src/main/java/duke/task/TaskList.java
+++ b/src/main/java/duke/task/TaskList.java
@@ -3,6 +3,8 @@
 import duke.DukeException;
 import java.time.format.DateTimeParseException;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -147,4 +149,46 @@ public String deleteTask(int taskIndex) throws DukeException {
         return "I've successfully deleted this task:\n" + task + "\nNow you have " + size + taskInTotal
                 + "\n\"Ride the waves.\"";
     }
+
+    /**
+     * Returns the reminder of upcoming deadlines.
+     * @return
+     */
+    public String getReminder() {
+        String result = "Upcoming deadlines:\n";
+        ArrayList<Deadline> deadlines = new ArrayList<>();
+        System.out.println(tasks);
+        for (int i = 0; i < tasks.size(); i++) {
+            if (tasks.get(i).taskType == TaskType.DEADLINE && !tasks.get(i).isDone) {
+                System.out.println("yes");
+                System.out.println(tasks.get(i));
+                Deadline task = (Deadline) tasks.get(i);
+                deadlines.add(task);
+            }
+        }
+
+        // Sort the deadlines list based on byDate
+        Collections.sort(deadlines, new Comparator<Deadline>() {
+            @Override
+            public int compare(Deadline d1, Deadline d2) {
+                if (d1.getByDate() == null && d2.getByDate() == null) {
+                    return 0;
+                } else if (d1.getByDate() == null) {
+                    return 1;
+                } else if (d2.getByDate() == null) {
+                    return -1;
+                } else {
+                    return d1.getByDate().compareTo(d2.getByDate());
+                }
+            }
+        });
+
+        System.out.println(deadlines);
+        System.out.println(deadlines.size());
+
+        for (int i = 0; i < deadlines.size(); i++) {
+            result += (i + 1) + " " + deadlines.get(i) + "\n";
+        }
+        return result + "\"One thing at a time.\"";
+    }
 }