[Liam Van] IP

src/main/java/Duke.java

@@ -1,10 +1,107 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+
 public class Duke {
+
+    public Duke() {
+
+    }
+
     public static void main(String[] args) {
+
+        Duke duke = new Duke();
+        ArrayList<String> userInputs = new ArrayList<>();
+        boolean isRun = true;
+        Scanner scan = new Scanner(System.in);
         String logo = " ____        _        \n"
                 + "|  _ \\ _   _| | _____ \n"
                 + "| | | | | | | |/ / _ \\\n"
                 + "| |_| | |_| |   <  __/\n"
                 + "|____/ \\__,_|_|\\_\\___|\n";
         System.out.println("Hello from\n" + logo);
+
+        greetUser();
+
+        while (true) {
+            String input = scan.nextLine();
+            if (input.equals("bye")) {
+                break;
+            }
+            if (input.equals("list")) {
+                listOut(userInputs);
+            } else if (input.length() >= 4 && input.substring(0, 4).equals("mark")) {
+                String[] tmpArr = input.split(" ");
+                markDone(Integer.parseInt(tmpArr[1]), userInputs, true);
+            } else if (input.length() >= 6 && input.substring(0, 6).equals("unmark")) {
+                String[] tmpArr = input.split(" ");
+                markDone(Integer.parseInt(tmpArr[1]), userInputs, false);
+            } else {
+                addToList(input, userInputs);
+            }
+            //echoCmd(input);
+
+
+        }
+        exit();
+    }
+    public static void markDone(int index, ArrayList<String> userInputs, boolean isMark) {
+        if (isMark) {
+            String org = userInputs.get(index - 1);
+            String newStr = org.replace("[ ]", "[X]");
+            System.out.println(newStr);
+            userInputs.set(index - 1, newStr);
+        } else {
+            String org = userInputs.get(index - 1);
+            String newStr = org.replace("[X]", "[ ]");
+            System.out.println(newStr);
+            userInputs.set(index - 1, newStr);
+        }
+        System.out.println("\t____________________________________________________________");
+        if (isMark) {
+            System.out.println("\t Nice! I've marked this task as done:");
+        } else {
+            System.out.println("\t OK, I've marked this task as not done yet:");
+        }
+        int idx = userInputs.get(index - 1).indexOf("[");
+        System.out.println("\t" + "  " + userInputs.get(index - 1).substring(idx));
+        System.out.println("\t____________________________________________________________");
+    }
+    public static void addToList(String cmd, ArrayList<String> userInputs) {
+        System.out.println("\t____________________________________________________________");
+        System.out.println("\tadded: " + cmd);
+        System.out.println("\t____________________________________________________________");
+        userInputs.add(cmd);
+        userInputs.set(userInputs.size() - 1, userInputs.size() + ". [ ] " + userInputs.get(userInputs.size() - 1));
+    }
+
+    public static void listOut(ArrayList<String> userInputs) {
+        System.out.println("\t____________________________________________________________");
+        for (int i = 0; i < userInputs.size(); i++) {
+            System.out.println("\t" + userInputs.get(i));
+        }
+        System.out.println("\t____________________________________________________________");
+
+    }
+    public static void echoCmd(String cmd) {
+        System.out.println("\t____________________________________________________________");
+        System.out.println("\t " + cmd);
+        System.out.println("\t____________________________________________________________");
+
+    }
+
+    public static void greetUser() {
+        System.out.println("\t____________________________________________________________");
+        System.out.println("\tHello! I'm Duke");
+        System.out.println("\tWhat can I do for you?");
+        System.out.println("\t____________________________________________________________");
+
+    }
+
+    public static void exit() {
+        System.out.println("\t____________________________________________________________");
+        System.out.println("\tBye. Hope to see you again soon!");
+        System.out.println("\t____________________________________________________________");
+
     }
+
 }