add comparators

src/main/java/seedu/address/logic/commands/SortCommand.java

@@ -9,7 +9,11 @@
 import static seedu.address.logic.parser.CliSyntax.PREFIX_NAME;
 import static seedu.address.logic.parser.CliSyntax.PREFIX_SALARY;
 
+import seedu.address.model.person.PersonCompanyNameComparator;
+import seedu.address.model.person.PersonInterviewTimeComparator;
+import seedu.address.model.person.PersonNameComparator;
 import seedu.address.model.person.PersonPriorityComparator;
+import seedu.address.model.person.PersonSalaryComparator;
 
 public class SortCommand extends Command {
 
@@ -36,7 +40,15 @@ public CommandResult execute(Model model) throws CommandException {
         switch (info) {
         case 0:
             model.updateSortedPersonList(new PersonPriorityComparator());
+        case 1:
+            model.updateSortedPersonList(new PersonCompanyNameComparator());
+        case 2:
+            model.updateSortedPersonList(new PersonNameComparator());
+        case 3:
+            model.updateSortedPersonList(new PersonInterviewTimeComparator());
+        case 4:
+            model.updateSortedPersonList(new PersonSalaryComparator());
         }
-        return new CommandResult("SORRRRTEEEDDDD TEEHEEE GG EZ");
+        return new CommandResult("List Sorted");
     }
 }

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

@@ -0,0 +1,10 @@
+package seedu.address.model.person;
+
+import java.util.Comparator;
+
+public class PersonCompanyNameComparator implements Comparator<Person> {
+    @Override
+    public int compare(Person p1, Person p2) {
+        return p1.getCompanyName().companyName.compareTo(p2.getCompanyName().companyName);
+    }
+}

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

@@ -0,0 +1,20 @@
+package seedu.address.model.person;
+
+import java.util.Comparator;
+
+public class PersonInterviewTimeComparator implements Comparator<Person> {
+    @Override
+    public int compare(Person p1, Person p2) {
+        if (p1.getDateTime().dateTime == null && p2.getDateTime().dateTime == null) {
+            return 0; // Both dates are null, retain the order
+        } else if (p1.getDateTime().dateTime == null) {
+            return 1; // p1 has null date, so it should come after p2
+        } else if (p2.getDateTime().dateTime == null) {
+            return -1; // p2 has null date, so it should come after p1
+        } else {
+            // Compare non-null dates
+            return p1.getDateTime().dateTime.compareTo(p2.getDateTime().dateTime);
+        }
+    }
+}
+

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

@@ -0,0 +1,10 @@
+package seedu.address.model.person;
+
+import java.util.Comparator;
+
+public class PersonNameComparator implements Comparator<Person> {
+    @Override
+    public int compare(Person p1, Person p2) {
+        return p1.getName().fullName.compareTo(p2.getName().fullName);
+    }
+}

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

@@ -0,0 +1,11 @@
+package seedu.address.model.person;
+
+import java.util.Comparator;
+
+public class PersonSalaryComparator implements Comparator<Person> {
+    @Override
+    public int compare(Person p1, Person p2) {
+
+        return Double.compare(p2.getSalary().getSalary1(), p1.getSalary().getSalary1());
+    }
+}