Merge pull request #44 from yijiano/dev/UiParser

Refactor exit command handling

src/main/java/seedu/pill/Pill.java

@@ -7,15 +7,16 @@
 
 public final class Pill {
     private static final Ui ui = new Ui();
+    private static final Parser parser = new Parser();
 
     /**
      * Runs the main loop of the Pill chatbot.
      */
     public void run() throws PillException {
         Printer.printInitMessage();
         String line = ui.getInput();
-        while (!line.equalsIgnoreCase("exit")) {
-            Parser.parseCommand(line);
+        while (parser.getExitFlag()) {
+            parser.parseCommand(line);
             line = ui.getInput();
         }
         Printer.printExitMessage();

src/main/java/seedu/pill/util/Parser.java

@@ -4,6 +4,7 @@
 import seedu.pill.exceptions.PillException;
 
 public class Parser {
+    private boolean exitFlag = false;
 
     /**
      * Public constructor for Parser.
@@ -18,12 +19,15 @@ public Parser() {
      * @param input The user's input command from the scanner.
      * @throws PillException If command is invalid
      */
-    public static void parseCommand(String input) throws PillException {
+    public void parseCommand(String input) throws PillException {
         String[] splitInput = input.split(" ", 2);
         String commandString = splitInput[0].toLowerCase();
 
         try {
             switch (commandString) {
+            case "exit":
+                this.exitFlag = true;
+                break;
             case "help":
                 // TODO: Add "help" command
                 break;
@@ -46,4 +50,13 @@ public static void parseCommand(String input) throws PillException {
             PillException.printException(e);
         }
     }
+
+    /**
+     * Returns an exit flag for the Pill bot to exit.
+     *
+     * @return The state of exit flag.
+     */
+    public boolean getExitFlag() {
+        return this.exitFlag;
+    }
 }