Add Javadocs and refactor code to improve readability

README.md

@@ -11,6 +11,6 @@ Example usage:
 The project is built upon an ongoing software project for a desktop application (called _AddressBook_) used for managing contact details.
   * It is **written in OOP fashion**. It provides a **reasonably well-written** code base **bigger** (around 6 KLoC) than what students usually write in beginner-level SE modules, without being overwhelmingly big.
   * It comes with a **reasonable level of user and developer documentation**.
-* It is named `AddressBook Level 3` (`AB3` for short) because it was initially created as a part of a series of `AddressBook` projects (`Level 1`, `Level 2`, `Level 3` ...).
+* It is named `AddressBook Level 3` (`AB3` for short) because it was initially created as a part of a series of `AddressBook` projects (`Level 1`, `Level 2`, `Level 3` ....)
 * For the detailed documentation of this project, see the **[Address Book Product Website](https://se-education.org/addressbook-level3)**.
 * This project is a **part of the se-education.org** initiative. If you would like to contribute code to this project, see [se-education.org](https://se-education.org#https://se-education.org/#contributing) for more info.

docs/team/atyhamos.md

@@ -31,16 +31,16 @@ Given below are my contributions to the project.
   * Highlights: This enhancement did not affect existing commands and commands to be added in the future, but did affect code coverage which required the creation of a `TuteeCardTest` class. Most of the changes were applied to .fxml and .css files which were mostly independent from the logic of the application.
   * Credits: *-*
 
-  * **Code contributed**: [RepoSense link](https://nus-cs2103-ay2122s1.github.io/tp-dashboard/?search=&sort=groupTitle&sortWithin=title&timeframe=commit&mergegroup=&groupSelect=groupByRepos&breakdown=true&checkedFileTypes=docs~functional-code~test-code~other&since=2021-09-17&tabOpen=true&tabType=authorship&tabAuthor=atyhamos&tabRepo=AY2122S1-CS2103T-F12-3%2Ftp%5Bmaster%5D&authorshipIsMergeGroup=false&authorshipFileTypes=docs~functional-code~test-code~other&authorshipIsBinaryFileTypeChecked=false)
+ * **Code contributed**: [RepoSense link](https://nus-cs2103-ay2122s1.github.io/tp-dashboard/?search=&sort=groupTitle&sortWithin=title&timeframe=commit&mergegroup=&groupSelect=groupByRepos&breakdown=true&checkedFileTypes=docs~functional-code~test-code~other&since=2021-09-17&tabOpen=true&tabType=authorship&tabAuthor=atyhamos&tabRepo=AY2122S1-CS2103T-F12-3%2Ftp%5Bmaster%5D&authorshipIsMergeGroup=false&authorshipFileTypes=docs~functional-code~test-code~other&authorshipIsBinaryFileTypeChecked=false)
 
-  * **Project management**:
-    * Managed releases `v1.3` and `v1.3.1` (2 releases) on GitHub
+ * **Project management**:
+   * Managed releases `v1.3` and `v1.3.1` (2 releases) on GitHub
 
-  * **Enhancements to existing features**:
-    * Updated the GUI color scheme (Pull request [\#36](https://github.com/AY2122S1-CS2103T-F12-3/tp/pull/36))
-    * Added test cases for `TuteeCard` to improve code coverage.
-      * Created `TuteeCardTest` to improve code coverage and testing for the `TuteeCard` class. Difficulties arose as testing the `TuteeCard` class required JavaFX toolkit to be initialised, but a workaround was used after researching on the Internet.
-      * Credits: *https://stackoverflow.com/a/53760312*
+ * **Enhancements to existing features**:
+   * Updated the GUI color scheme (Pull request [\#36](https://github.com/AY2122S1-CS2103T-F12-3/tp/pull/36))
+   * Added test cases for `TuteeCard` to improve code coverage.
+     * Created `TuteeCardTest` to improve code coverage and testing for the `TuteeCard` class. Difficulties arose as testing the `TuteeCard` class required JavaFX toolkit to be initialised, but a workaround was used after researching on the Internet.
+     * Credits: *https://stackoverflow.com/a/53760312*
 
   * **Documentation**:
     * User Guide:
@@ -63,7 +63,7 @@ Given below are my contributions to the project.
   [\#88](https://github.com/AY2122S1-CS2103T-F12-3/tp/pull/88),
   [\#90](https://github.com/AY2122S1-CS2103T-F12-3/tp/pull/90),
   [\#163](https://github.com/AY2122S1-CS2103T-F12-3/tp/pull/163).
-  
+
   * Designed team's application icon:
     * For Application tray and window: <br> <img width="20%" alt="Application tray" src="../../src/main/resources/images/tracko_logo.png"/>
     * For User Guide:<br><img width="20%" alt="For website" src="../images/tracko_logo_docs.png"/>

src/main/java/seedu/address/logic/parser/ParserUtil.java

@@ -314,12 +314,12 @@ public static String parsePaymentValue(String paymentValue) throws ParseExceptio
         requireNonNull(paymentValue);
         String trimmedPayment = paymentValue.trim();
         if (!Payment.isNumberWithAnyDecimals(trimmedPayment)) {
-            throw new ParseException(Payment.MESSAGE_CONSTRAINTS);
+            throw new ParseException(Payment.FORMAT_CONSTRAINTS_MESSAGE);
         } else if (!Payment.isValidPaymentFormat(trimmedPayment)) {
-            throw new ParseException(Payment.DECIMAL_CONSTRAINTS);
+            throw new ParseException(Payment.DECIMAL_CONSTRAINTS_MESSAGE);
         } else if (!Payment.isValidPaymentAmount(trimmedPayment)) {
             // Payment amount is greater than maximum allowed
-            throw new ParseException(Payment.AMOUNT_CONSTRAINTS);
+            throw new ParseException(Payment.AMOUNT_CONSTRAINTS_MESSAGE);
         } else {
             return trimmedPayment;
         }
@@ -365,17 +365,17 @@ public static LocalDate parsePayByDate(String payByDate) throws ParseException {
         }
 
         if (!Payment.isValidPayByDate(trimmedPayByDate)) {
-            throw new ParseException(Payment.DATE_CONSTRAINTS);
+            throw new ParseException(Payment.DATE_CONSTRAINTS_MESSAGE);
         }
 
         try {
             formattedPayByDate = LocalDate.parse(trimmedPayByDate, DateTimeFormatter.ofPattern("dd-MM-yyyy"));
         } catch (DateTimeParseException e) {
-            throw new ParseException(Payment.DATE_CONSTRAINTS);
+            throw new ParseException(Payment.DATE_CONSTRAINTS_MESSAGE);
         }
 
         if (!formattedPayByDate.isAfter(dateToday) && !formattedPayByDate.equals(dateToday)) {
-            throw new ParseException(Payment.DATE_CONSTRAINTS);
+            throw new ParseException(Payment.DATE_CONSTRAINTS_MESSAGE);
         }
         return formattedPayByDate;
     }

src/main/java/seedu/address/logic/parser/PaymentCommandParser.java

@@ -78,7 +78,7 @@ public PaymentCommand parse(String args) throws ParseException {
             String userInput = argMultimap.getValue(PREFIX_PAYMENT_DATE).get();
             LocalDate paymentPayByDateToSet = ParserUtil.parsePayByDate(userInput);
             if (paymentPayByDateToSet == null) {
-                throw new ParseException(Payment.DATE_CONSTRAINTS);
+                throw new ParseException(Payment.DATE_CONSTRAINTS_MESSAGE);
             }
             return new PaymentSetDateCommand(index, paymentPayByDateToSet);
         }

src/main/java/seedu/address/model/tutee/Payment.java

@@ -17,29 +17,54 @@
  */
 public class Payment {
 
-    public static final String MESSAGE_CONSTRAINTS =
+    /** Error message displayed when the payment is not a positive number. */
+    public static final String FORMAT_CONSTRAINTS_MESSAGE =
             "Payment values should only contain non-negative numbers with at least 1 digit, allowing 0 or 2 decimals "
                     + "i.e 0, 100 or 74.50";
-    public static final String DECIMAL_CONSTRAINTS =
+
+    /**  Error message displayed when the payment does not have valid decimal places. */
+    public static final String DECIMAL_CONSTRAINTS_MESSAGE =
             "Payment values must have either 0 or 2 decimal places. If it has 2 decimal places, it must "
                     + "end with either a 0 or 5, i.e 40.50 or 40.55.";
-    public static final String AMOUNT_CONSTRAINTS = "Payment value should not exceed $100,000";
-    public static final String DATE_CONSTRAINTS =
+
+    /** Error message displayed when the payment exceeds the maximum amount. */
+    public static final String AMOUNT_CONSTRAINTS_MESSAGE = "Payment value should not exceed $100,000";
+
+    /** Error message displayed when the payment due date is in the incorrect format. */
+    public static final String DATE_CONSTRAINTS_MESSAGE =
             "Payment due dates should be a valid date in the format of dd-MM-yyyy, i.e 20-10-2021 and"
                     + " must equal to or after today's date.";
-    public static final String PAYMENT_HISTORY_CONSTRAINTS =
+
+    /** Error message displayed when the payment history is in the incorrect format. */
+    public static final String PAYMENT_HISTORY_CONSTRAINTS_MESSAGE =
             "Payment history should only contain dates in the format of dd-MM-yyyy, i.e 20-10-2021, and 'Never'.";
+
+    /** The formatter used to format dates in the dd-MM-YYY pattern. */
     public static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("dd-MM-yyyy");
     public static final String TODAY_DATE_AS_STRING = LocalDate.now().format(FORMATTER);
+
+    /** The regex used to determine if a string is a valid non-negative number*/
     public static final String VALIDATION_REGEX_NUMERICAL_FRONT_ANY_DECIMALS = "^[0-9][\\d]*([.][0-9]+)?$"
             .replaceFirst("^0+", "");
+
+    /** The regex used to determine if a string is a valid non_negative number with strictly zero or two decimals. */
     public static final String VALIDATION_REGEX_PAYMENT_NO_OR_TWO_DECIMAL_PLACES = "^[0-9][\\d]*([.][0-9][0|5])?$"
             .replaceFirst("^0+", "");
+
+    /** The maximum amount that a tutee can owe. */
     public static final Double MAXIMUM_AMOUNT = 100000.00;
+
+    /** The payment amount due by the tutee. */
     public final String value;
+
+    /** The payment due date set for the tutee. */
     public final LocalDate payByDate;
     public final String payByDateAsString;
+
+    /** Whether the current date has exceeded the payment due date. */
     public final boolean isOverdue;
+
+    /** The previous payment dates of the tutee. */
     public final List<String> paymentHistory = new ArrayList<String>();
 
 
@@ -50,7 +75,7 @@ public class Payment {
      */
     public Payment(String payment, LocalDate payByDate) {
         requireNonNull(payment);
-        checkArgument(isValidPaymentFormat(payment), MESSAGE_CONSTRAINTS);
+        checkArgument(isValidPaymentFormat(payment), FORMAT_CONSTRAINTS_MESSAGE);
         value = payment;
         this.payByDate = payByDate;
         this.paymentHistory.add("Never");
@@ -59,15 +84,15 @@ public Payment(String payment, LocalDate payByDate) {
     }
 
     /**
-     * Initializes a standard payment sum starting from $0
+     * Initializes a standard payment sum starting from $0.
      * @return A payment of 0 without a last payment date.
      */
     public static Payment initializePayment() {
         return new Payment("0", null);
     }
 
     /**
-     * Returns true if a given string is a valid payment amount.
+     * Returns true if a given string has a valid payment format of a non-negative number with zero or two decimals.
      * @param test The string to test on
      * @return Whether the string matches the regex
      */
@@ -120,12 +145,15 @@ public static boolean isValidPayByDate(String payByDateAsString) {
      * @return Whether the given List follows the correct format for payment histories
      */
     public static boolean isValidPaymentHistory(List<String> paymentHistory) {
-        if (!paymentHistory.get(0).equals("Never")) {
+        String firstPaymentDate = paymentHistory.get(0);
+        if (!firstPaymentDate.equals("Never")) {
             return false;
-        }
-        for (int i = 1; i < paymentHistory.size(); i++) {
-            if (!isValidPayByDate(paymentHistory.get(i))) {
-                return false;
+        } else {
+            // Checks if all the entries are valid payment due dates
+            for (int i = 1; i < paymentHistory.size(); i++) {
+                if (!isValidPayByDate(paymentHistory.get(i))) {
+                    return false;
+                }
             }
         }
         return true;
@@ -139,6 +167,7 @@ public void copyPaymentHistory(List<String> historyToCopy) {
         if (!isValidPaymentHistory(historyToCopy)) {
             return;
         } else {
+            // Ensure current payment history is empty before copying over
             paymentHistory.clear();
             assert paymentHistory.isEmpty() : "paymentHistory should be empty";
             for (String payment : historyToCopy) {
@@ -149,8 +178,9 @@ public void copyPaymentHistory(List<String> historyToCopy) {
 
     @Override
     public String toString() {
+        String lastPaidDate = paymentHistory.get(paymentHistory.size() - 1);
         return String.format("$%s (Last paid on: %s)\nOverdue: %s",
-                value, paymentHistory.get(paymentHistory.size() - 1), getOverdueStatus());
+                getValue(), lastPaidDate, getOverdueStatus());
     }
 
     /**
@@ -163,6 +193,7 @@ public String getOverdueStatus() {
         } else if (payByDateAsString.equals("-")) {
             return "No (Pay-by date not set)";
         } else {
+            // Payment is not overdue
             return "No (Next payment date by: " + payByDateAsString + ")";
         }
     }

src/main/java/seedu/address/storage/JsonAdaptedTutee.java

@@ -157,21 +157,21 @@ public Tutee toModelType() throws IllegalValueException, IOException {
             throw new IllegalValueException(String.format(MISSING_FIELD_MESSAGE_FORMAT, Payment.class.getSimpleName()));
         }
         if (!Payment.isValidPaymentFormat(payment)) {
-            throw new IllegalValueException(Payment.MESSAGE_CONSTRAINTS);
+            throw new IllegalValueException(Payment.FORMAT_CONSTRAINTS_MESSAGE);
         }
 
         if (payByDateAsString == null) {
             throw new IllegalValueException(String.format(MISSING_FIELD_MESSAGE_FORMAT, "payment pay-by date"));
         }
         if (!Payment.isValidPayByDate(payByDateAsString)) {
-            throw new IllegalValueException(Payment.DATE_CONSTRAINTS);
+            throw new IllegalValueException(Payment.DATE_CONSTRAINTS_MESSAGE);
         }
 
         if (paymentHistory == null) {
             throw new IllegalValueException(String.format(MISSING_FIELD_MESSAGE_FORMAT, "payment history"));
         }
         if (!Payment.isValidPaymentHistory(paymentHistory)) {
-            throw new IllegalValueException(Payment.PAYMENT_HISTORY_CONSTRAINTS);
+            throw new IllegalValueException(Payment.PAYMENT_HISTORY_CONSTRAINTS_MESSAGE);
         }
 
         final Address modelAddress = new Address(address);

src/main/java/seedu/address/ui/TuteeCard.java

@@ -52,14 +52,17 @@ public class TuteeCard extends UiPart<Region> {
     @FXML
     private FlowPane tags;
 
-    // A List of hexadecimal values of colors to choose from (Green, Pink, Orange, Purple, Cyan)
+    /** A List of five hexadecimal values of colors for subject labels (Green, Pink, Orange, Purple, Cyan). */
     private List<String> subjectColors = Arrays.asList("#35893b", "#d2729d", "#ae950c", "#5912b0",
             "#48ac9a");
-    // The index of the color to choose from
+
+    /** The index of the color to choose from. */
     private int colorIndex = 0;
 
     /**
-     * Creates a {@code TuteeCode} with the given {@code Tutee} and index to display.
+     * Creates a {@code TuteeCard} with the given {@code Tutee} and index to display.
+     * @param tutee The Tutee whose information is to be displayed
+     * @param displayedIndex The index to be displayed alongside the tutee's information
      */
     public TuteeCard(Tutee tutee, int displayedIndex) {
         super(FXML);
@@ -73,7 +76,7 @@ public TuteeCard(Tutee tutee, int displayedIndex) {
         school.setText(tutee.getSchool().value);
         level.setText(tutee.getLevel().stringRepresentation);
 
-        //Adds subject names as tags
+        // Adds subject names as tags
         tutee.getLessons().stream()
                 .sorted(Comparator.comparing(lesson -> lesson.getSubject().toString()))
                 .forEach(lesson -> addSubjectToTag(lesson.getSubject()));
@@ -84,19 +87,24 @@ public TuteeCard(Tutee tutee, int displayedIndex) {
     }
 
     /**
-     * Adds colored subject tags to Tutee Card
-     * @param subject The Lesson with the subject to be added
+     * Adds colored subject tags to a TuteeCard.
+     * @param subject The Subject to be added and displayed
      */
     public void addSubjectToTag(Subject subject) {
         Label subjectLabel = new Label(subject.toString());
+
+        // This sets the subject to be displayed as a tag with white font colour and a coloured background
         subjectLabel.setStyle(" -fx-text-fill: white;\n"
                 + "    -fx-background-color: " + this.subjectColors.get(colorIndex)
                 + ";\n"
                 + "    -fx-padding: 1 3 1 3;\n"
                 + "    -fx-border-radius: 2;\n"
                 + "    -fx-background-radius: 2;\n"
                 + "    -fx-font-size: 11;\n");
+
+        // Wrap-around if student has more than 5 subjects
         colorIndex = colorIndex == 4 ? 0 : colorIndex + 1;
+
         tags.getChildren().add(subjectLabel);
     }
 

src/main/java/seedu/address/ui/UiManager.java

@@ -66,7 +66,7 @@ void showAlertDialogAndWait(Alert.AlertType type, String title, String headerTex
     private static void showAlertDialogAndWait(Stage owner, AlertType type, String title, String headerText,
                                                String contentText) {
         final Alert alert = new Alert(type);
-        alert.getDialogPane().getStylesheets().add("view/NewTheme.css");
+        alert.getDialogPane().getStylesheets().add("view/Theme.css");
         alert.initOwner(owner);
         alert.setTitle(title);
         alert.setHeaderText(headerText);