[Truong Minh Duong] iP

src/main/java/ChatBot.java

@@ -0,0 +1,51 @@
+public class ChatBot {
+    private TodoList todoList;
+
+    private enum Instructions {todo, deadline, event, mark, unmark, delete}
+
+    public ChatBot(TodoList todoList) {
+        this.todoList = todoList;
+    }
+
+    public void execute(String command) throws DukeExceptions {
+        String[] split_command = command.split(" ", 2);
+        String instruction = split_command[0];
+
+        if (instruction.equals("list")) {
+            if (split_command.length == 1) {
+                String shown_list = todoList.toString();
+                System.out.println(shown_list);
+                return;
+            } else {
+                throw new DukeExceptions("OOPS!!! The description of a list cannot have other parameters");
+            }
+        }
+
+        //check for valid instructions
+        for (Instructions validInstruction : Instructions.values()) {
+            if (validInstruction.name().equals(instruction)) {
+                if (split_command.length == 1) {
+                    throw new DukeExceptions(String.format("OOPS!!! The description of a %s cannot be empty.", instruction));
+                } else if (instruction.equals("mark")) {
+                    int digit = Integer.parseInt(split_command[1]);
+                    todoList.mark(digit);
+                    return;
+                } else if (instruction.equals("unmark")) {
+                    int digit = Integer.parseInt(split_command[1]);
+                    todoList.unmark(digit);
+                    return;
+                } else if (instruction.equals("delete")) {
+                    int digit = Integer.parseInt(split_command[1]);
+                    todoList.delete(digit);
+                    System.out.println(String.format("Now I have %d tasks in the list.", todoList.number_of_tasks()));
+                    return;
+                } else {
+                    todoList.add(instruction, split_command[1]);
+                    System.out.println(String.format("Now I have %d tasks in the list.", todoList.number_of_tasks()));
+                    return;
+                }
+            }
+        }
+        throw new DukeExceptions("OOPS!!! I'm sorry, but I don't know what that means.");
+    }
+}

src/main/java/Duke.java

@@ -1,10 +1,47 @@
+import java.util.Scanner;
+
 public class Duke {
+
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+
+
+        begin();
+
+        TodoList todoList = new TodoList();
+        ChatBot bot = new ChatBot(todoList);
+
+        Scanner scanner = new Scanner(System.in);
+        String input = scanner.nextLine();
+
+        while (!input.equals("bye")) {
+            try {
+                bot.execute(input);
+            } catch (DukeExceptions error) {
+                System.out.println(error.getErrorMessage());
+            }
+            endCommand();
+            input = scanner.nextLine(); //ready for next input
+        }
+        scanner.close();
+        bye();
+    }
+
+    private static void begin() {
+        endCommand();
+
+        System.out.println("Hello from Duke");
+        System.out.println("What can I do for you?");
+
+        endCommand();
+    }
+
+    private static void endCommand() {
+        System.out.println("____________________________________________________________");
+    }
+
+    private static void bye() {
+        System.out.println("Bye. Hope to see you again soon!");
+        endCommand();
     }
 }

src/main/java/DukeExceptions.java

@@ -0,0 +1,10 @@
+public class DukeExceptions extends Exception{
+    private String error;
+    public DukeExceptions(String error) {
+        this.error = error;
+    }
+
+    public String getErrorMessage() {
+        return this.error;
+    }
+}

src/main/java/Task.java

@@ -0,0 +1,93 @@
+public class Task {
+    private Boolean isDone;
+
+    public Task() {
+        this.isDone = false;
+    }
+
+    public Task createNewTask(String type, String task) throws DukeExceptions{
+        if (type.equals("todo")) {
+            return new Todo(task);
+        } else if (type.equals("deadline")) {
+            return new Deadline(task);
+        } else if (type.equals("event")) {
+            return new Event(task);
+        } else {
+            System.out.println("unknown command! Please try again.");
+            return null;
+        }
+    }
+
+    public void markTask() {
+        this.isDone = true;
+    }
+
+    public void unmarkTask() {
+        this.isDone = false;
+    }
+
+
+    class Todo extends Task {
+        private String task;
+
+        public Todo(String task) {
+            super();
+            this.task = task;
+        }
+
+        @Override
+        public String toString() {
+            String name = super.isDone ? "[T][X] " + task : "[T][ ] " + task;
+            return name;
+        }
+    }
+
+    class Deadline extends Task {
+        private String task;
+        private String deadline;
+
+        public Deadline(String task) throws DukeExceptions {
+            super();
+            String[] commands = task.split(" /by ");
+            if (commands.length == 1) {
+                throw new DukeExceptions("OOPS!!! Looks like someone forget his/her deadline :)\n Please use /by to indicate deadline");
+            }
+            this.task = commands[0];
+            this.deadline = commands[1];
+        }
+
+        @Override
+        public String toString() {
+            String name = super.isDone ? "[D][X] " + task + " (by: " + this.deadline +")" : "[D][ ] " + task + " (by: " + this.deadline +")";
+            return name;
+        }
+    }
+
+    class Event extends Task {
+        private String task;
+        private String from;
+        private String to;
+
+        public Event(String task) throws DukeExceptions {
+            super();
+            String[] commands = task.split(" /from ");
+            if (commands.length == 1) {
+                throw new DukeExceptions("OOPS!!! Looks like someone forget when the event begins :)\n Please use /from to indicate begin time");
+            }
+            this.task = commands[0];
+            String[] from_to_timeline = commands[1].split(" /to ");
+            if (from_to_timeline.length == 1) {
+                throw new DukeExceptions("OOPS!!! Looks like someone forget when the event ends :)\n Please use /to to indicate end time");
+            }
+            this.from = from_to_timeline[0];
+            this.to = from_to_timeline[1];
+        }
+
+        @Override
+        public String toString() {
+            String name = super.isDone ? "[E][X] " + task + " (from: " + this.from +" to: " + this.to + ")"
+                    : "[E][ ] " + task + " (from: " + this.from +" to: " + this.to + ")";
+            return name;
+        }
+    }
+}

src/main/java/TodoList.java

@@ -0,0 +1,64 @@
+import java.util.ArrayList;
+
+public class TodoList {
+    private ArrayList<Task> todo_list;
+
+    public TodoList() {
+        this.todo_list = new ArrayList<>(100);
+    }
+
+    public void add(String type, String task) throws DukeExceptions{
+        Task taskObject = new Task();
+        Task newTask = taskObject.createNewTask(type, task);
+        System.out.println("Got it. I've added this task:");
+        todo_list.add(newTask);
+        System.out.println(newTask);
+    }
+
+    public void mark(int index) throws DukeExceptions{
+        int todo_list_length = todo_list.size();
+        if (index < 0 || index > todo_list_length) {
+            throw new DukeExceptions("Please use list command to check the index!");
+        }
+        Task task = todo_list.get(index - 1);
+        task.markTask();
+        System.out.println("Nice! I've marked this task as done:");
+        System.out.println(todo_list.get(index-1));
+    }
+
+    public void unmark(int index) throws DukeExceptions{
+        int todo_list_length = todo_list.size();
+        if (index < 0 || index > todo_list_length) {
+            throw new DukeExceptions("Please use list command to check the index!");
+        }
+        Task task = todo_list.get(index - 1);
+        task.unmarkTask();
+        System.out.println("OK, I've marked this task as not done yet:");
+        System.out.println(todo_list.get(index-1));
+
+    }
+
+    public void delete(int index) throws DukeExceptions {
+        int todo_list_length = todo_list.size();
+        if (index < 0 || index > todo_list_length) {
+            throw new DukeExceptions("Please use list command to check the index!");
+        }
+        Task task = todo_list.remove(index - 1);
+        System.out.println("Noted. I've removed this task:");
+        System.out.println(task);
+    }
+
+    public int number_of_tasks() {
+        return todo_list.size();
+    }
+
+    @Override
+    public String toString() {
+        String shown_list = "";
+        int todo_list_length = todo_list.size();
+        for (int i = 1; i <= todo_list_length; i++) {
+            shown_list += String.format("%d. %s\n", i, todo_list.get(i-1));
+        }
+        return shown_list;
+    }
+}

text-ui-test/EXPECTED.TXT

@@ -1,7 +1,90 @@
-Hello from
- ____        _        
-|  _ \ _   _| | _____ 
-| | | | | | | |/ / _ \
-| |_| | |_| |   <  __/
-|____/ \__,_|_|\_\___|
+____________________________________________________________
+Hello from Duke
+What can I do for you?
+____________________________________________________________
+OOPS!!! I'm sorry, but I don't know what that means.
+____________________________________________________________
+OOPS!!! The description of a todo cannot be empty.
+____________________________________________________________
+Got it. I've added this task:
+[T][ ] read book
+Now I have 1 tasks in the list.
+____________________________________________________________
+OOPS!!! The description of a list cannot have other parameters
+____________________________________________________________
+1. [T][ ] read book
 
+____________________________________________________________
+OOPS!!! The description of a deadline cannot be empty.
+____________________________________________________________
+OOPS!!! Looks like someone forget his/her deadline :)
+ Please use /by to indicate deadline
+____________________________________________________________
+Got it. I've added this task:
+[D][ ] return book (by: Sunday 2pm)
+Now I have 2 tasks in the list.
+____________________________________________________________
+1. [T][ ] read book
+2. [D][ ] return book (by: Sunday 2pm)
+
+____________________________________________________________
+OOPS!!! The description of a event cannot be empty.
+____________________________________________________________
+OOPS!!! Looks like someone forget when the event begins :)
+ Please use /from to indicate begin time
+____________________________________________________________
+OOPS!!! Looks like someone forget when the event ends :)
+ Please use /to to indicate end time
+____________________________________________________________
+Got it. I've added this task:
+[E][ ] programming study (from: 5pm to: 9pm)
+Now I have 3 tasks in the list.
+____________________________________________________________
+1. [T][ ] read book
+2. [D][ ] return book (by: Sunday 2pm)
+3. [E][ ] programming study (from: 5pm to: 9pm)
+
+____________________________________________________________
+Nice! I've marked this task as done:
+[T][X] read book
+____________________________________________________________
+1. [T][X] read book
+2. [D][ ] return book (by: Sunday 2pm)
+3. [E][ ] programming study (from: 5pm to: 9pm)
+
+____________________________________________________________
+Nice! I've marked this task as done:
+[D][X] return book (by: Sunday 2pm)
+____________________________________________________________
+1. [T][X] read book
+2. [D][X] return book (by: Sunday 2pm)
+3. [E][ ] programming study (from: 5pm to: 9pm)
+
+____________________________________________________________
+OK, I've marked this task as not done yet:
+[D][ ] return book (by: Sunday 2pm)
+____________________________________________________________
+1. [T][X] read book
+2. [D][ ] return book (by: Sunday 2pm)
+3. [E][ ] programming study (from: 5pm to: 9pm)
+
+____________________________________________________________
+OOPS!!! The description of a delete cannot be empty.
+____________________________________________________________
+Please use list command to check the index!
+____________________________________________________________
+1. [T][X] read book
+2. [D][ ] return book (by: Sunday 2pm)
+3. [E][ ] programming study (from: 5pm to: 9pm)
+
+____________________________________________________________
+Noted. I've removed this task:
+[T][X] read book
+Now I have 2 tasks in the list.
+____________________________________________________________
+1. [D][ ] return book (by: Sunday 2pm)
+2. [E][ ] programming study (from: 5pm to: 9pm)
+
+____________________________________________________________
+Bye. Hope to see you again soon!
+____________________________________________________________