Implemented ability to add new loans using templates

src/main/java/eggventory/logic/commands/CommandDictionary.java

@@ -18,7 +18,7 @@ public CommandDictionary() {
         // Add Commands
         commandDict.add(new Pair<>("add stock", "<StockType> <StockCode> <Quantity> <Description>"));
         commandDict.add(new Pair<>("add stocktype", "<StockType>"));
-        commandDict.add(new Pair<>("add loan", "<StockCode> <Quantity>"));
+        commandDict.add(new Pair<>("add loan", "<MatricNo> <StockCode> <Quantity>"));
         commandDict.add(new Pair<>("add stocktype", "<StockType>"));
         commandDict.add(new Pair<>("add person", "<MatricNo> <Name>"));
         commandDict.add(new Pair<>("add template", "<TemplateName> {<StockCode>, <Quantity>}"));

src/main/java/eggventory/logic/commands/add/AddLoanByTemplateCommand.java

@@ -0,0 +1,45 @@
+package eggventory.logic.commands.add;
+
+import eggventory.commons.enums.CommandType;
+import eggventory.commons.exceptions.BadInputException;
+import eggventory.logic.commands.Command;
+import eggventory.model.LoanList;
+import eggventory.model.StockList;
+import eggventory.model.TemplateList;
+import eggventory.model.loans.Loan;
+import eggventory.storage.Storage;
+import eggventory.ui.Ui;
+
+import javax.imageio.ImageTranscoder;
+import java.util.ArrayList;
+
+public class AddLoanByTemplateCommand extends Command {
+
+    private String matricNo;
+    private String name;
+
+    /**
+     * Adds new loans to a matric using a loan template.
+     * @param matricNo Matric number of student to add the loans to.
+     * @param name Name of template to get loans from.
+     */
+    public AddLoanByTemplateCommand(CommandType type, String matricNo,  String name) {
+        super(type);
+        this.matricNo = matricNo;
+        this.name = name;
+    }
+
+    @Override
+    public String execute(StockList list, Ui ui, Storage storage) throws BadInputException {
+
+        String output = LoanList.addLoan(matricNo, name);
+
+        if (output == null) {
+            output = "OOPS! Template does not exist!";
+        }
+
+        ui.print(output);
+
+        return output;
+    }
+}

src/main/java/eggventory/logic/parsers/ParseAdd.java

@@ -7,9 +7,11 @@
 import eggventory.logic.commands.add.AddStockCommand;
 import eggventory.logic.commands.add.AddStockTypeCommand;
 import eggventory.logic.commands.add.AddTemplateCommand;
+import eggventory.logic.commands.add.AddLoanByTemplateCommand;
 import eggventory.commons.enums.CommandType;
 import eggventory.commons.exceptions.BadInputException;
 import eggventory.commons.exceptions.InsufficientInfoException;
+import eggventory.model.TemplateList;
 import javafx.util.Pair;
 
 import java.util.ArrayList;
@@ -81,12 +83,20 @@ private Command processAddTemplate(String input) throws BadInputException {
     }
 
     //@@author cyanoei
-    private Command processAddLoan(String input) throws BadInputException {
+    private Command processAddLoan(String input) throws BadInputException, InsufficientInfoException {
         String[] addInput = input.split(" +");
         if (Parser.isReserved(addInput[0])) {
             throw new BadInputException("'" + addInput[0] + "' is an invalid name as it is a keyword"
                     + " for an existing command.");
         }
+
+        if (TemplateList.templateExists(addInput[1])) {
+            return new AddLoanByTemplateCommand(CommandType.ADD, addInput[0], addInput[1]);
+        }
+
+        if (!Parser.isCommandComplete(input, 2)) {
+            throw new InsufficientInfoException(CommandDictionary.getCommandUsage("add loan"));
+        }
         return new AddLoanCommand(CommandType.ADD, addInput[0], addInput[1], Integer.parseInt(addInput[2]));
     }
 
@@ -122,7 +132,7 @@ public Command parse(String inputString) throws InsufficientInfoException, BadIn
             break;
 
         case "loan":
-            if (!Parser.isCommandComplete(inputString, 3)) {
+            if (!Parser.isCommandComplete(inputString, 2)) {
                 throw new InsufficientInfoException(CommandDictionary.getCommandUsage("add loan"));
             }
             addCommand = processAddLoan(addInput[1]);
@@ -151,8 +161,4 @@ public Command parse(String inputString) throws InsufficientInfoException, BadIn
 
     }
 
-    private void checkIfCommandComplete() {
-
-    }
-
 }

src/main/java/eggventory/model/LoanList.java

@@ -58,16 +58,23 @@ public static void addLoan(String stockCode, String matricNo, int quantity,
      * Add multiple loans using a template.
      * @param matricNo Matriculation number of student to assign loans to.
      * @param template Name of the template.
+     * @return String of the loans added.
      */
-    public static void addLoan(String matricNo, String template) {
+    public static String addLoan(String matricNo, String template) {
         Loan[] loans = TemplateList.getTemplateLoans(template);
         if (loans == null) {
-            return;
+            return null;
         }
 
+        StringBuilder output = new StringBuilder(String.format(
+                "The following loans have been added to %s:", matricNo));
+
         for (Loan loan : loans) {
             addLoan(loan.getStockCode(), matricNo, loan.getQuantity());
+            output.append(String.format("%s: %d", loan.getStockCode(), loan.getQuantity()));
         }
+
+        return output.toString();
     }
 
     //@@author cyanoei