[Tan Hong Liang] iP

src/main/java/Deadline.java

@@ -0,0 +1,14 @@
+public class Deadline extends Task{
+
+    protected String dateTime;
+
+    public Deadline(String description, String dateTime) {
+        super(description);
+        this.dateTime = dateTime;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("[D]%s (by:%s)", super.toString(), this.dateTime);
+    }
+}

src/main/java/Duke.java

@@ -1,10 +1,118 @@
+import java.util.Scanner;
+import java.util.ArrayList;
+
 public class Duke {
+    private static ArrayList<Task> tasks = new ArrayList<Task>();
+    private static boolean isEnd = false;
+
+    private static final String UI_LINE_SPACING = "----------------------------------------\n";
+
+    private static final String COMMAND_LIST = "list";
+    private static final String COMMAND_BYE = "bye";
+    private static final String COMMAND_TODO = "todo";
+    private static final String COMMAND_DEADLINE = "deadline";
+    private static final String COMMAND_EVENT = "event";
+    private static final String COMMAND_MARK = "mark";
+    private static final String COMMAND_UNMARK = "unmark";
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+        String greeting = "Hello! I'm Duke  \n" + "What can I do for you?\n";
+        Scanner userInput = new Scanner(System.in);
+        chat(greeting);
+        while (!isEnd) {
+            String userStatement = userInput.nextLine();
+            String splitUserStatement[] = userStatement.split(" ", 2);
+            String command = splitUserStatement[0];
+            String userArgs = "";
+            if (splitUserStatement.length > 1) {
+                userArgs = splitUserStatement[1];
+            }
+            /*String[] splitUserArgs = userArgs.split("/by", 2);
+            String dateTime = "";
+            String description = splitUserArgs[0];
+            if (splitUserArgs.length > 1) {
+                dateTime = splitUserArgs[1]; 
+            } */
+            switch(command) {
+            case COMMAND_LIST:
+                chat("Here are the tasks in your list: \n" + list());
+                break;
+            case COMMAND_BYE:
+                chat("Bye! Hope to see you again!\n");
+                isEnd = true;
+                break;
+            case COMMAND_TODO:
+                ToDo toDoToAdd = new ToDo(userArgs);
+                tasks.add(toDoToAdd);
+                chat("Got it, I've added this task:\n " + toDoToAdd + "\n" + outputNumOfTasks());
+                break;
+            case COMMAND_DEADLINE:  
+                String[] splitUserArgs = userArgs.split("/by", 2);
+                String dateTime = "";
+                String description = splitUserArgs[0];
+                if (splitUserArgs.length > 1) {
+                    dateTime = splitUserArgs[1]; 
+                }           
+                Deadline deadlineToAdd = new Deadline(description, dateTime);
+                tasks.add(deadlineToAdd);
+                chat("Got it, I've added this task:\n " + deadlineToAdd + "\n" + outputNumOfTasks());
+                break;
+            case COMMAND_EVENT: 
+                String[] splitUserArgs2 = userArgs.split("/at", 2);
+                String dateTime2 = "";
+                String description2 = splitUserArgs2[0];
+                if (splitUserArgs2.length > 1) {
+                    dateTime2 = splitUserArgs2[1]; 
+                }              
+                Event eventToAdd = new Event(description2, dateTime2);
+                tasks.add(eventToAdd);
+                chat("Got it, I've added this task:\n " + eventToAdd + "\n" + outputNumOfTasks());
+                break;
+            case COMMAND_MARK:
+                mark(Integer.parseInt(userArgs));
+                break;
+            case COMMAND_UNMARK:
+                unmark(Integer.parseInt(userArgs));
+                break;
+            default:
+                chat("Not a command, just wanna chat?");
+            }
+        }
+    }
+
+    public static String list() {
+        String output = "";
+        int count = 1;
+        for (Task task : tasks) {
+            output += String.valueOf(count) + ". " + task + "\n";
+            count += 1;
+        }
+        return output;
+    }
+
+    public static void mark(int taskNum) {
+        Task targetTask = tasks.get(taskNum-1);
+        targetTask.mark();
+        System.out.println(UI_LINE_SPACING + "Nice! I've marked this task as done:\n" + targetTask + "\n" + UI_LINE_SPACING);
+
+    }
+
+    public static void unmark(int taskNum) {
+        Task targetTask = tasks.get(taskNum-1);
+        targetTask.unmark();
+        System.out.println(UI_LINE_SPACING + "OK, I've marked this task as not done yet:\n" + targetTask + "\n" + UI_LINE_SPACING);
+    }
+
+    public static String outputNumOfTasks() {
+        return String.format("Now you have %d tasks in the list \n", tasks.size());
+    }
+
+    public static void chat(String message) {
+        System.out.println(UI_LINE_SPACING + message + UI_LINE_SPACING);
+    }
+
+    public static void end() {
+        System.out.println(UI_LINE_SPACING + "Bye! Hope to see you again!" + UI_LINE_SPACING);
+        isEnd = true;
     }
 }

src/main/java/Event.java

@@ -0,0 +1,14 @@
+public class Event extends Task{
+
+    protected String duration;
+
+    public Event(String description, String duration) {
+        super(description);
+        this.duration = duration;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("[E]%s (at:%s)", super.toString(), this.duration);
+    }
+}

src/main/java/Task.java

@@ -0,0 +1,36 @@
+public class Task {
+    protected String description;
+    protected   boolean isDone;
+
+    Task (String description) {
+        this.description = description;
+        this.isDone = false;
+    }
+    Task (String description, boolean isDone) {
+        this.description = description;
+        this.isDone = isDone;
+    }
+
+    public String getDescription() {
+        return this.description;
+    }
+
+    public void mark() {
+        this.isDone = true;
+    }
+
+    public void unmark() {
+        this.isDone = false;
+    }
+
+    @Override
+    public String toString() {
+        char mark;
+        if (this.isDone) {
+            mark = 'X';
+        } else {
+            mark = ' ';
+        }
+        return ("[" + mark + "] " + this.getDescription());
+    }
+}

src/main/java/TaskType.java

@@ -0,0 +1,5 @@
+enum TaskType {
+    TODO,
+    DEADLINE,
+    EVENT
+}

src/main/java/ToDo.java

@@ -0,0 +1,11 @@
+public class ToDo extends Task{
+
+    public ToDo(String description) {
+        super(description);
+    }
+
+    @Override
+    public String toString() {
+        return String.format("[T]%s", super.toString());
+    }
+}