Update Photo.java

src/main/java/seedu/address/model/person/Photo.java

@@ -1,4 +1,63 @@
 package seedu.address.model.person;
 
+import seedu.address.commons.exceptions.IllegalValueException;
+
+/**
+ * Represents a Person's display picture in the address book
+ * Guarantees: immutable; is valid as declared in (@Link #isValidImage(String))
+ */
 public class Photo {
+    public static final String MESSAGE_PHOTO_CONSTRAINTS =
+            "Person's photo should be in jpeg and be of 340px x 453px dimension";
+
+    /*
+     * The first character of the address must not be a whitespace,
+     * otherwise " " (a blank string) becomes a valid input.
+     */
+    public static final String PHOTO_VALIDATION_REGEX = "[^\\s].*"; //Yet to update
+
+    public final String value;
+
+    /**
+     * Validates given photo.
+     *
+     * @throws IllegalValueException if given photo string is invalid.
+     */
+    public Photo(String address) throws IllegalValueException {
+        if (address == null) {
+            address = "data/default.jpeg"; //Give a default profile picture
+        } else {
+            address = address.trim();
+        }
+        /*if (!isValidPhoto(address)) {
+            throw new IllegalValueException(MESSAGE_PHOTO_CONSTRAINTS);
+        }
+        */
+        this.value = address;
+    }
+
+    /**
+     * Returns true if a given string is a valid person email.
+     */
+    public static boolean isValidPhoto(String test) {
+        return test.matches(PHOTO_VALIDATION_REGEX);
+    }
+
+    @Override
+    public String toString() {
+        return value;
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        return other == this // short circuit if same object
+                || (other instanceof Address // instanceof handles nulls
+                && this.value.equals(((Address) other).value)); // state check
+    }
+
+    @Override
+    public int hashCode() {
+        return value.hashCode();
+    }
+
 }