Merge pull request #66 from yadunut/add-module-search

Add module search

docs/UserGuide.md

@@ -283,7 +283,11 @@ Format: `list_modules m/MODULE_CODE`
 
 * The `MODULE_CODE` refers to the module code of the module you intend to add
 
+## Find friends with modules: `module_search`
 
+Finds friends who are taking the specified module.
+
+Format: `module_search m/MODULE_CODE`
 
 ## Deleting a student : `delete`
 

src/main/java/seedu/address/logic/commands/module/ModuleSearchCommand.java

@@ -0,0 +1,41 @@
+package seedu.address.logic.commands.module;
+
+import static java.util.Objects.requireNonNull;
+import static seedu.address.logic.parser.CliSyntax.PREFIX_MODULE_CODE;
+
+import seedu.address.logic.Messages;
+import seedu.address.logic.commands.Command;
+import seedu.address.logic.commands.CommandResult;
+import seedu.address.logic.commands.exceptions.CommandException;
+import seedu.address.model.Model;
+import seedu.address.model.module.ModuleCode;
+
+/**
+ * Searches for students with the specified module code.
+ */
+public class ModuleSearchCommand extends Command {
+    public static final String COMMAND_WORD = "module_search";
+    public static final String MESSAGE_USAGE = "Searches for students with the specified module code. "
+            + "Parameters: MODULE_CODE\n"
+            + "Example: " + COMMAND_WORD + " " + PREFIX_MODULE_CODE + "CS2103T";
+    private final ModuleCode moduleCode;
+
+    /**
+     * Creates a ModuleSearchCommand to search for students with the specified module code.
+     * @param moduleCode
+     */
+    public ModuleSearchCommand(ModuleCode moduleCode) {
+        requireNonNull(moduleCode);
+        this.moduleCode = moduleCode;
+    }
+
+    @Override
+    public CommandResult execute(Model model) throws CommandException {
+        requireNonNull(model);
+        model.updateFilteredStudentList(student -> student.hasModule(moduleCode));
+        StringBuilder sb = new StringBuilder();
+        sb.append("List of students with module: ").append(moduleCode).append("\n");
+        sb.append(String.format(Messages.MESSAGE_STUDENTS_LISTED_OVERVIEW, model.getFilteredStudentList().size()));
+        return new CommandResult(sb.toString());
+    }
+}

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

@@ -21,6 +21,7 @@
 import seedu.address.logic.commands.HelpCommand;
 import seedu.address.logic.commands.ListCommand;
 import seedu.address.logic.commands.module.ListModulesCommand;
+import seedu.address.logic.commands.module.ModuleSearchCommand;
 import seedu.address.logic.parser.exceptions.ParseException;
 
 /**
@@ -65,8 +66,11 @@ public Command parseCommand(String userInput) throws ParseException {
 
         case AddStudentModuleTimingCommand.COMMAND_WORD:
             return new AddStudentModuleTimingCommandParser().parse(arguments);
+
         case ListModulesCommand.COMMAND_WORD:
             return new ListModulesCommandParser().parse(arguments);
+        case ModuleSearchCommand.COMMAND_WORD:
+            return new ModuleSearchCommandParser().parse(arguments);
 
         case EditCommand.COMMAND_WORD:
             return new EditCommandParser().parse(arguments);

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

@@ -0,0 +1,30 @@
+package seedu.address.logic.parser;
+
+import static seedu.address.logic.Messages.MESSAGE_INVALID_COMMAND_FORMAT;
+import static seedu.address.logic.parser.CliSyntax.PREFIX_MODULE_CODE;
+
+import java.util.stream.Stream;
+
+import seedu.address.logic.commands.module.ModuleSearchCommand;
+import seedu.address.logic.parser.exceptions.ParseException;
+import seedu.address.model.module.ModuleCode;
+
+/**
+ * Parses input arguments and creates a new ModuleSearchCommand object
+ */
+public class ModuleSearchCommandParser implements Parser<ModuleSearchCommand> {
+    @Override
+    public ModuleSearchCommand parse(String userInput) throws ParseException {
+        ArgumentMultimap argumentMultimap = ArgumentTokenizer.tokenize(userInput, PREFIX_MODULE_CODE);
+        if (!arePrefixesPresent(argumentMultimap, PREFIX_MODULE_CODE) || !argumentMultimap.getPreamble().isEmpty()) {
+            throw new ParseException(String.format(MESSAGE_INVALID_COMMAND_FORMAT, ModuleSearchCommand.MESSAGE_USAGE));
+        }
+        argumentMultimap.verifyNoDuplicatePrefixesFor(PREFIX_MODULE_CODE);
+        ModuleCode moduleCode = ParserUtil.parseModule(argumentMultimap.getValue(PREFIX_MODULE_CODE).get());
+        return new ModuleSearchCommand(moduleCode);
+    }
+
+    private static boolean arePrefixesPresent(ArgumentMultimap argumentMultimap, Prefix... prefixes) {
+        return Stream.of(prefixes).allMatch(prefix -> argumentMultimap.getValue(prefix).isPresent());
+    }
+}

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

@@ -15,7 +15,7 @@
  */
 public class HelpWindow extends UiPart<Stage> {
 
-    public static final String USERGUIDE_URL = "https://se-education.org/addressbook-level3/UserGuide.html";
+    public static final String USERGUIDE_URL = "https://ay2324s2-cs2103t-w12-2.github.io/tp/UserGuide.html";
     public static final String HELP_MESSAGE = "Refer to the user guide: " + USERGUIDE_URL;
 
     private static final Logger logger = LogsCenter.getLogger(HelpWindow.class);