Level-9: Add find function

Michaeliaaa · Aug 25, 2020 · fbecf99 · fbecf99
1 parent 1f81aae
commit fbecf99
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Showing 8 changed files with 49 additions and 2 deletions.
diff --git a/data/listOfTasks.txt b/data/listOfTasks.txt
@@ -1,2 +1,2 @@
-T | 1 | hey
-E | 1 | hey  | 2020-09-09
+D | 0 | meeting agenda  | 2020-08-26
+E | 0 | meeting  | 2020-08-27
diff --git a/src/main/java/duke/CommandHandler.java b/src/main/java/duke/CommandHandler.java
@@ -130,6 +130,11 @@ public static void handleCommands(String input, DukeCommandType commandType, Tas
             case LIST:
                 tasks.getListOfTasks();
                 break;
+            case FIND:
+                String keyword = input.split(" ")[1];
+                System.out.println(keyword);
+                tasks.findTasks(keyword);
+                break;
             case DONE:
                 try {
                     int index = Integer.parseInt(input.split(" ")[1]);

diff --git a/src/main/java/duke/DukeCommandType.java b/src/main/java/duke/DukeCommandType.java
@@ -8,6 +8,7 @@ public enum DukeCommandType {
     DEADLINE,
     EVENT,
     LIST,
+    FIND,
     DONE,
     DELETE,
     HELP,

diff --git a/src/main/java/duke/DukeException.java b/src/main/java/duke/DukeException.java
@@ -49,6 +49,9 @@ public String toString(){
             case UNKNOWN:
                 error += "    I DON'T KNOW WHAT YOU MEAN :-(\n";
                 break;
+            case NO_MATCHING_FOUND:
+                error += "    NO MATCHES FOUND :-(\n";
+                break;
             case WRONG_FORMAT:
                 switch (commandType) {
                     case DEADLINE:

diff --git a/src/main/java/duke/DukeExceptionType.java b/src/main/java/duke/DukeExceptionType.java
@@ -8,6 +8,7 @@ public enum DukeExceptionType {
     MISSING_DESCRIPTION,
     MISSING_TIMING,
     INVALID_INDEX,
+    NO_MATCHING_FOUND,
     WRONG_FORMAT,
     UNKNOWN,
 }
diff --git a/src/main/java/duke/Parser.java b/src/main/java/duke/Parser.java
@@ -37,6 +37,8 @@ public static void parseInputs(TaskList tasks) throws DukeException {
                 CommandHandler.handleCommands(input, DukeCommandType.DELETE, tasks);
                 input = sc.nextLine();
                 continue;
+            } else if (input.startsWith("find")) {
+                CommandHandler.handleCommands(input, DukeCommandType.FIND, tasks);
             } else {
                 CommandHandler.handleCommands(input, DukeCommandType.UNKNOWN, tasks);
                 input = sc.nextLine();

diff --git a/src/main/java/duke/Task.java b/src/main/java/duke/Task.java
@@ -51,6 +51,15 @@ public void markAsDone() {
         this.isDone = true;
     }
 
+    /**
+     * Gets description of the task.
+     *
+     * @return
+     */
+    public String getDescription() {
+        return this.description;
+    }
+
     /**
      * Returns string format of task.
      *

diff --git a/src/main/java/duke/TaskList.java b/src/main/java/duke/TaskList.java
@@ -83,4 +83,30 @@ public static void delete(Integer index) {
                 + "\n   ____________________________________________________________\n";
         System.out.println(str);
     }
+
+    public static void findTasks(String keyword) {
+        ArrayList<Task> matchingTasks = new ArrayList<>();
+        for (Task task: tasks) {
+            if (task.getDescription().contains(keyword)) {
+                matchingTasks.add(task);
+            }
+        }
+        if (matchingTasks.isEmpty()) {
+            try {
+                throw new DukeException("", DukeExceptionType.NO_MATCHING_FOUND);
+            } catch (DukeException e) {
+                System.err.println(e);
+            }
+        } else {
+            int index = 1;
+            String str = "   ____________________________________________________________"
+                    + "\n    Here are the matching tasks in your list:";
+            for (Task task : matchingTasks) {
+                str += "\n     " + index + ". " + task;
+                index++;
+            }
+            str += "\n   ____________________________________________________________\n";
+            System.out.println(str);
+        }
+    }
 }