[
{
"path": "D1/Sequence Diagram/Sequence1.drawio",
"content": "\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n"
},
{
"path": "D1/Sequence Diagram/Sequence2.drawio",
"content": "\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n"
},
{
"path": "D1/Sequence Diagram/sequence3.drawio",
"content": "\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n"
},
{
"path": "D2/.vscode/settings.json",
"content": "{\n \"java.project.referencedLibraries\": [\n \"lib/**/*.jar\"\n ]\n}"
},
{
"path": "D2/data/bookings.csv",
"content": "bookingID,userID,equipmentID,startTime,endTime,status,depositAmount,depositForfeited,paymentMethod,isExtended\nB001,U001,EQ001,2026-03-20 09:00,2026-03-20 11:00,CONFIRMED,10.0,false,CREDIT,false\nB002,U002,EQ004,2026-03-21 14:00,2026-03-21 16:00,CONFIRMED,15.0,false,INSTITUTIONAL,false\n"
},
{
"path": "D2/data/equipment.csv",
"content": "equipmentID,name,description,type,status,buildingName,roomNumber\nEQ001,Oscilloscope,Digital oscilloscope 200MHz,Electronics,AVAILABLE,Lassonde,101\nEQ002,3D Printer,FDM 3D printer,Fabrication,AVAILABLE,Bergeron,202\nEQ003,Laser Cutter,CO2 laser cutter,Fabrication,MAINTENANCE,Lassonde,103\nEQ004,Spectrometer,UV-Vis spectrometer,Optics,AVAILABLE,Petrie,305\nEQ005,CNC Machine,3-axis CNC milling machine,Fabrication,DISABLED,Bergeron,204\n"
},
{
"path": "D2/data/users.csv",
"content": "userID,name,email,password,userType,staffID,status,department\nU001,Alice Student,alice@yorku.ca,pass123,STUDENT,S12345,ACTIVE,Engineering\nU002,Bob Faculty,bob@yorku.ca,pass123,FACULTY,F67890,ACTIVE,Science\nU003,Carol Researcher,carol@yorku.ca,pass123,RESEARCHER,R11111,ACTIVE,Research\nU004,Dave Guest,dave@example.com,pass123,GUEST,CERT-999,ACTIVE,External\nM001,Manager Mike,manager@yorku.ca,manager123,MANAGER,MGR-001,ACTIVE,Engineering\nC001,Coordinator Carol,coord@yorku.ca,coord123,COORDINATOR,COORD-001,ACTIVE,Administration\nU1773892952781,shiah,shiah@gmail.com,Ilham123,STUDENT,123,PENDING,eecs\nU1773922455105,Jane Doe,jane@yorku.ca,pass123,FACULTY,S12345,PENDING,Engineering\n"
},
{
"path": "D2/src/Main.java",
"content": "import javax.swing.SwingUtilities;\nimport gui.MainFrame;\n\npublic class Main {\n public static void main(String[] args) {\n SwingUtilities.invokeLater(() -> {\n MainFrame.getInstance().setVisible(true);\n });\n }\n}\n"
},
{
"path": "D2/src/data/.gitkeep",
"content": ""
},
{
"path": "D2/src/data/BookingDAO.java",
"content": "package data;\n\nimport com.csvreader.CsvReader;\nimport com.csvreader.CsvWriter;\nimport model.Reservation;\n\nimport java.io.FileWriter;\nimport java.util.ArrayList;\nimport java.util.List;\n\n/**\n * BookingDAO - loads and saves reservations from/to bookings.csv\n * CSV columns: bookingID,userID,equipmentID,startTime,endTime,status,depositAmount,depositForfeited,paymentMethod,isExtended\n */\npublic class BookingDAO {\n\n private String path;\n private List bookings = new ArrayList<>();\n\n public BookingDAO(String path) {\n this.path = path;\n }\n\n public void load() throws Exception {\n bookings.clear();\n CsvReader reader = new CsvReader(path);\n reader.readHeaders();\n\n while (reader.readRecord()) {\n Reservation r = new Reservation();\n r.setBookingID(reader.get(\"bookingID\"));\n r.setUserID(reader.get(\"userID\"));\n r.setEquipmentID(reader.get(\"equipmentID\"));\n r.setStartTime(reader.get(\"startTime\"));\n r.setEndTime(reader.get(\"endTime\"));\n r.setStatus(reader.get(\"status\"));\n r.setDepositAmount(Double.parseDouble(reader.get(\"depositAmount\")));\n r.setDepositForfeited(Boolean.parseBoolean(reader.get(\"depositForfeited\")));\n r.setPaymentMethod(reader.get(\"paymentMethod\"));\n r.setExtended(Boolean.parseBoolean(reader.get(\"isExtended\")));\n bookings.add(r);\n }\n reader.close();\n }\n\n public void save() throws Exception {\n CsvWriter writer = new CsvWriter(new FileWriter(path, false), ',');\n\n writer.write(\"bookingID\");\n writer.write(\"userID\");\n writer.write(\"equipmentID\");\n writer.write(\"startTime\");\n writer.write(\"endTime\");\n writer.write(\"status\");\n writer.write(\"depositAmount\");\n writer.write(\"depositForfeited\");\n writer.write(\"paymentMethod\");\n writer.write(\"isExtended\");\n writer.endRecord();\n\n for (Reservation r : bookings) {\n writer.write(r.getBookingID());\n writer.write(r.getUserID());\n writer.write(r.getEquipmentID());\n writer.write(r.getStartTime());\n writer.write(r.getEndTime());\n writer.write(r.getStatus());\n writer.write(String.valueOf(r.getDepositAmount()));\n writer.write(String.valueOf(r.isDepositForfeited()));\n writer.write(r.getPaymentMethod());\n writer.write(String.valueOf(r.isExtended()));\n writer.endRecord();\n }\n writer.close();\n }\n\n public void addBooking(Reservation r) {\n bookings.add(r);\n }\n\n public Reservation findByID(String bookingID) {\n for (Reservation r : bookings) {\n if (r.getBookingID().equals(bookingID)) return r;\n }\n return null;\n }\n\n public List getBookingsByUser(String userID) {\n List result = new ArrayList<>();\n for (Reservation r : bookings) {\n if (r.getUserID().equals(userID)) result.add(r);\n }\n return result;\n }\n\n public List getBookingsByEquipment(String equipmentID) {\n List result = new ArrayList<>();\n for (Reservation r : bookings) {\n if (r.getEquipmentID().equals(equipmentID)) result.add(r);\n }\n return result;\n }\n\n public List getAllBookings() {\n return bookings;\n }\n\n public void updateBooking(Reservation updated) {\n for (int i = 0; i < bookings.size(); i++) {\n if (bookings.get(i).getBookingID().equals(updated.getBookingID())) {\n bookings.set(i, updated);\n return;\n }\n }\n }\n}\n"
},
{
"path": "D2/src/data/EquipmentDAO.java",
"content": "package data;\n\nimport com.csvreader.CsvReader;\nimport com.csvreader.CsvWriter;\nimport model.Equipment;\n\nimport java.io.FileWriter;\nimport java.util.ArrayList;\nimport java.util.List;\n\n/**\n * EquipmentDAO - loads and saves equipment from/to equipment.csv\n * CSV columns: equipmentID,name,description,type,status,buildingName,roomNumber\n */\npublic class EquipmentDAO {\n\n private String path;\n private List equipmentList = new ArrayList<>();\n\n public EquipmentDAO(String path) {\n this.path = path;\n }\n\n public void load() throws Exception {\n equipmentList.clear();\n CsvReader reader = new CsvReader(path);\n reader.readHeaders();\n\n while (reader.readRecord()) {\n Equipment e = new Equipment();\n e.setEquipmentID(reader.get(\"equipmentID\"));\n e.setName(reader.get(\"name\"));\n e.setDescription(reader.get(\"description\"));\n e.setType(reader.get(\"type\"));\n e.setStatus(reader.get(\"status\"));\n e.setBuildingName(reader.get(\"buildingName\"));\n e.setRoomNumber(reader.get(\"roomNumber\"));\n equipmentList.add(e);\n }\n reader.close();\n }\n\n public void save() throws Exception {\n CsvWriter writer = new CsvWriter(new FileWriter(path, false), ',');\n\n writer.write(\"equipmentID\");\n writer.write(\"name\");\n writer.write(\"description\");\n writer.write(\"type\");\n writer.write(\"status\");\n writer.write(\"buildingName\");\n writer.write(\"roomNumber\");\n writer.endRecord();\n\n for (Equipment e : equipmentList) {\n writer.write(e.getEquipmentID());\n writer.write(e.getName());\n writer.write(e.getDescription());\n writer.write(e.getType());\n writer.write(e.getStatus());\n writer.write(e.getBuildingName());\n writer.write(e.getRoomNumber());\n writer.endRecord();\n }\n writer.close();\n }\n\n public void addEquipment(Equipment e) {\n equipmentList.add(e);\n }\n\n public Equipment findByID(String equipmentID) {\n for (Equipment e : equipmentList) {\n if (e.getEquipmentID().equals(equipmentID)) return e;\n }\n return null;\n }\n\n public List getAllEquipment() {\n return equipmentList;\n }\n\n public List getAvailableEquipment() {\n List available = new ArrayList<>();\n for (Equipment e : equipmentList) {\n if (e.isAvailable()) available.add(e);\n }\n return available;\n }\n\n public void updateEquipment(Equipment updated) {\n for (int i = 0; i < equipmentList.size(); i++) {\n if (equipmentList.get(i).getEquipmentID().equals(updated.getEquipmentID())) {\n equipmentList.set(i, updated);\n return;\n }\n }\n }\n}\n"
},
{
"path": "D2/src/data/UserDAO.java",
"content": "package data;\n\nimport com.csvreader.CsvReader;\nimport com.csvreader.CsvWriter;\nimport model.*;\n\nimport java.io.FileWriter;\nimport java.util.ArrayList;\nimport java.util.List;\n\n/**\n * UserDAO - loads and saves users from/to users.csv\n * CSV columns: userID,name,email,password,userType,staffID,status,department\n */\npublic class UserDAO {\n\n private String path;\n private List users = new ArrayList<>();\n\n public UserDAO(String path) {\n this.path = path;\n }\n\n public void load() throws Exception {\n users.clear();\n CsvReader reader = new CsvReader(path);\n reader.readHeaders();\n\n while (reader.readRecord()) {\n String userType = reader.get(\"userType\");\n User user = createUser(userType);\n\n user.setUserID(reader.get(\"userID\"));\n user.setName(reader.get(\"name\"));\n user.setEmail(reader.get(\"email\"));\n user.setPassword(reader.get(\"password\"));\n user.setUserType(userType);\n user.setStaffID(reader.get(\"staffID\"));\n user.setStatus(reader.get(\"status\"));\n user.setDepartment(reader.get(\"department\"));\n\n users.add(user);\n }\n reader.close();\n }\n\n public void save() throws Exception {\n CsvWriter writer = new CsvWriter(new FileWriter(path, false), ',');\n\n // Write headers\n writer.write(\"userID\");\n writer.write(\"name\");\n writer.write(\"email\");\n writer.write(\"password\");\n writer.write(\"userType\");\n writer.write(\"staffID\");\n writer.write(\"status\");\n writer.write(\"department\");\n writer.endRecord();\n\n // Write each user\n for (User u : users) {\n writer.write(u.getUserID());\n writer.write(u.getName());\n writer.write(u.getEmail());\n writer.write(u.getPassword());\n writer.write(u.getUserType());\n writer.write(u.getStaffID());\n writer.write(u.getStatus());\n writer.write(u.getDepartment());\n writer.endRecord();\n }\n writer.close();\n }\n\n public void addUser(User user) {\n users.add(user);\n }\n\n public User findByEmail(String email) {\n for (User u : users) {\n if (u.getEmail().equalsIgnoreCase(email)) return u;\n }\n return null;\n }\n\n public User findByID(String userID) {\n for (User u : users) {\n if (u.getUserID().equals(userID)) return u;\n }\n return null;\n }\n\n public boolean emailExists(String email) {\n return findByEmail(email) != null;\n }\n\n public List getAllUsers() {\n return users;\n }\n\n public void updateUser(User updated) {\n for (int i = 0; i < users.size(); i++) {\n if (users.get(i).getUserID().equals(updated.getUserID())) {\n users.set(i, updated);\n return;\n }\n }\n }\n\n // Factory helper - creates the right subclass based on userType string\n private User createUser(String userType) {\n switch (userType.toUpperCase()) {\n case \"STUDENT\": return new Student();\n case \"FACULTY\": return new Faculty();\n case \"RESEARCHER\": return new Researcher();\n case \"GUEST\": return new Guest();\n case \"MANAGER\": return new LabManager();\n case \"COORDINATOR\": return new HeadLabCoordinator();\n default: return new Student();\n }\n }\n}\n"
},
{
"path": "D2/src/gui/.gitkeep",
"content": ""
},
{
"path": "D2/src/gui/CoordinatorDashboardPanel.java",
"content": "package gui;\n\nimport javax.swing.*;\nimport javax.swing.table.*;\nimport java.awt.*;\nimport data.UserDAO;\nimport model.*;\nimport pattern.singleton.HeadLabCoordinatorSingleton;\n\npublic class CoordinatorDashboardPanel extends ManagerDashboardPanel {\n private static final long serialVersionUID = 1L;\n\n private DefaultTableModel allUsersModel;\n private JTable allUsersTable;\n private JTextField genID, genName, genEmail, genDept;\n private JLabel coordInfo;\n\n public CoordinatorDashboardPanel(MainFrame frame) {\n super(frame, false); // don't call build() yet\n build();\n }\n\n @Override\n public void refresh() {\n try { equipDAO.load(); userDAO.load(); bookDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n if (currentUser != null && coordInfo != null)\n coordInfo.setText(\" Head Lab Coordinator | \" + currentUser.getName());\n refreshEquip();\n refreshPending();\n refreshAllBookings();\n refreshAllUsers();\n }\n\n @Override\n protected void build() {\n setBackground(UI.BG);\n setLayout(new BorderLayout());\n\n JButton logout = UI.button(\"Logout\", UI.DANGER);\n logout.addActionListener(e -> getFrame().showPanel(MainFrame.LOGIN));\n coordInfo = new JLabel(\" \");\n coordInfo.setForeground(new Color(148,163,184));\n coordInfo.setFont(new Font(\"SansSerif\", Font.PLAIN, 12));\n JPanel nav = UI.navBar(\"👑 Coordinator Console\", \"\", logout);\n nav.add(coordInfo, BorderLayout.CENTER);\n add(nav, BorderLayout.NORTH);\n\n JTabbedPane tabs = new JTabbedPane();\n tabs.setFont(new Font(\"SansSerif\", Font.BOLD, 12));\n tabs.addTab(\"⚠ Pending Approvals\", buildPendingTab());\n tabs.addTab(\"🔬 Equipment\", buildEquipTab());\n tabs.addTab(\"➕ Add Equipment\", buildAddTab());\n tabs.addTab(\"📋 All Bookings\", buildBookingsTab());\n tabs.addTab(\"👥 All Users\", buildAllUsersTab());\n tabs.addTab(\"🔑 Generate Manager\", buildGenerateTab());\n add(tabs, BorderLayout.CENTER);\n\n status = UI.statusBar();\n add(status, BorderLayout.SOUTH);\n }\n\n private JPanel buildAllUsersTab() {\n JPanel p = new JPanel(new BorderLayout(10, 10));\n p.setBackground(UI.BG);\n p.setBorder(BorderFactory.createEmptyBorder(14, 14, 14, 14));\n p.add(UI.heading(\"All Registered Users\"), BorderLayout.NORTH);\n\n allUsersModel = UI.tableModel(\"User ID\",\"Name\",\"Email\",\"Type\",\"Staff ID\",\"Department\",\"Status\");\n allUsersTable = UI.styledTable(allUsersModel);\n p.add(new JScrollPane(allUsersTable), BorderLayout.CENTER);\n\n JPanel btns = new JPanel(new FlowLayout(FlowLayout.LEFT, 8, 8));\n btns.setBackground(UI.BG);\n JButton refresh = UI.button(\"↻ Refresh\", UI.YORKU_RED);\n refresh.addActionListener(e -> refreshAllUsers());\n\n JButton approve = UI.button(\"✔ Approve Selected\", UI.SUCCESS);\n approve.addActionListener(e -> approveFromAllUsers());\n\n JButton reject = UI.button(\"✘ Reject Selected\", UI.DANGER);\n reject.addActionListener(e -> rejectFromAllUsers());\n\n btns.add(refresh); btns.add(approve); btns.add(reject);\n p.add(btns, BorderLayout.SOUTH);\n return p;\n }\n\n private JPanel buildGenerateTab() {\n JPanel outer = new JPanel(new GridBagLayout());\n outer.setBackground(UI.BG);\n\n JPanel form = UI.card(\"Generate Lab Manager Account (Req2)\");\n\n JLabel note = new JLabel(\"Only the Head Lab Coordinator can perform this action (Req2).\");\n note.setFont(new Font(\"SansSerif\", Font.ITALIC, 12));\n note.setForeground(UI.TEXT_MUTED);\n note.setAlignmentX(Component.LEFT_ALIGNMENT);\n form.add(note);\n form.add(Box.createVerticalStrut(12));\n\n genID = addField(form, \"Manager ID (e.g. M002)\");\n genName = addField(form, \"Full Name\");\n genEmail = addField(form, \"Email Address\");\n genDept = addField(form, \"Department\");\n\n form.add(Box.createVerticalStrut(8));\n JButton gen = UI.button(\"Generate Manager Account\", UI.YORKU_RED);\n gen.setAlignmentX(Component.LEFT_ALIGNMENT);\n gen.addActionListener(e -> generateManager());\n form.add(gen);\n\n JPanel wrap = new JPanel(new BorderLayout());\n wrap.setBackground(UI.CARD);\n wrap.setBorder(BorderFactory.createLineBorder(UI.BORDER));\n wrap.add(form, BorderLayout.CENTER);\n outer.add(wrap);\n return outer;\n }\n\n private void refreshAllUsers() {\n if (allUsersModel == null) return;\n try { userDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n allUsersModel.setRowCount(0);\n for (User u : userDAO.getAllUsers())\n allUsersModel.addRow(new Object[]{\n u.getUserID(), u.getName(), u.getEmail(),\n u.getUserType(), u.getStaffID(), u.getDepartment(), u.getStatus()\n });\n }\n\n private void approveFromAllUsers() {\n int row = allUsersTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a user.\", true); return; }\n String uid = (String) allUsersModel.getValueAt(row, 0);\n String name = (String) allUsersModel.getValueAt(row, 1);\n User u = userDAO.findByID(uid);\n if (u == null) return;\n u.setStatus(\"ACTIVE\");\n userDAO.updateUser(u);\n try { userDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"✔ Approved: \" + name, false);\n refreshAllUsers(); refreshPending();\n }\n\n private void rejectFromAllUsers() {\n int row = allUsersTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a user.\", true); return; }\n String uid = (String) allUsersModel.getValueAt(row, 0);\n String name = (String) allUsersModel.getValueAt(row, 1);\n User u = userDAO.findByID(uid);\n if (u == null) return;\n u.setStatus(\"REJECTED\");\n userDAO.updateUser(u);\n try { userDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"✘ Rejected: \" + name, false);\n refreshAllUsers(); refreshPending();\n }\n\n private void generateManager() {\n if (currentUser == null || !\"COORDINATOR\".equals(currentUser.getUserType())) {\n UI.setStatus(status, \"Only the Head Lab Coordinator can do this (Req2).\", true); return;\n }\n String id = genID.getText().trim();\n String name = genName.getText().trim();\n String email = genEmail.getText().trim();\n String dept = genDept.getText().trim();\n if (id.isEmpty() || name.isEmpty() || email.isEmpty()) {\n UI.setStatus(status, \"All fields required.\", true); return;\n }\n try { userDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n if (userDAO.emailExists(email)) {\n UI.setStatus(status, \"Email already exists.\", true); return;\n }\n\n String tempPass = \"temp\" + id;\n LabManager mgr = HeadLabCoordinatorSingleton.getInstance()\n .generateManagerAccount(id, name, email, tempPass, dept);\n userDAO.addUser(mgr);\n try { userDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n\n UI.setStatus(status,\n \"✔ Manager account created! Email: \" + email + \" | Temp Password: \" + tempPass, false);\n genID.setText(\"\"); genName.setText(\"\"); genEmail.setText(\"\"); genDept.setText(\"\");\n refreshAllUsers();\n }\n\n private MainFrame getFrame() {\n Container c = getParent();\n while (c != null && !(c instanceof MainFrame)) c = c.getParent();\n return (MainFrame) c;\n }\n}\n"
},
{
"path": "D2/src/gui/LoginPanel.java",
"content": "package gui;\n\nimport javax.swing.*;\nimport javax.swing.border.*;\nimport java.awt.*;\nimport data.UserDAO;\nimport model.User;\nimport pattern.factory.UserFactory;\n\npublic class LoginPanel extends JPanel {\n private static final long serialVersionUID = 1L;\n private MainFrame frame;\n private UserDAO userDAO = new UserDAO(\"data/users.csv\");\n private JTextField emailField;\n private JPasswordField passField;\n private JTextField regName, regEmail, regStaffID, regDept;\n private JPasswordField regPass;\n private JComboBox regType;\n private JLabel status;\n\n public LoginPanel(MainFrame frame) {\n this.frame = frame;\n try { userDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n build();\n }\n\n private void build() {\n setBackground(UI.BG);\n setLayout(new BorderLayout());\n\n // Nav bar\n JPanel nav = new JPanel(new BorderLayout());\n nav.setBackground(UI.NAV_BG);\n nav.setBorder(BorderFactory.createMatteBorder(0, 0, 4, 0, UI.YORKU_RED));\n JPanel navLeft = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));\n navLeft.setBackground(UI.NAV_BG);\n JLabel badge = new JLabel(\" Y \");\n badge.setFont(new Font(\"Segoe UI\", Font.BOLD, 15));\n badge.setForeground(Color.WHITE); badge.setBackground(UI.YORKU_RED); badge.setOpaque(true);\n badge.setBorder(BorderFactory.createEmptyBorder(13,14,13,14));\n JLabel title = new JLabel(\" YorkU Lab Equipment Reservation System\");\n title.setFont(UI.F_HEAD); title.setForeground(UI.NAV_FG);\n navLeft.add(badge); navLeft.add(title);\n nav.add(navLeft, BorderLayout.WEST);\n add(nav, BorderLayout.NORTH);\n\n // Cards\n JPanel centre = new JPanel(new GridBagLayout());\n centre.setBackground(UI.BG);\n JPanel cards = new JPanel(new GridLayout(1, 2, 24, 0));\n cards.setBackground(UI.BG);\n cards.setPreferredSize(new Dimension(940, 560));\n cards.add(buildLoginCard());\n cards.add(buildRegCard());\n centre.add(cards);\n add(centre, BorderLayout.CENTER);\n\n // Status\n status = UI.statusBar();\n status.setText(\" Welcome — please sign in or create an account.\");\n add(status, BorderLayout.SOUTH);\n }\n\n private JPanel buildLoginCard() {\n JPanel inner = UI.card(\"Sign In\");\n inner.add(UI.label(\"Email address\")); inner.add(Box.createVerticalStrut(4));\n emailField = UI.field(\"alice@yorku.ca\"); inner.add(emailField);\n inner.add(Box.createVerticalStrut(14));\n inner.add(UI.label(\"Password\")); inner.add(Box.createVerticalStrut(4));\n passField = UI.password();\n passField.setMaximumSize(new Dimension(Integer.MAX_VALUE, 36));\n passField.setAlignmentX(Component.LEFT_ALIGNMENT);\n inner.add(passField); inner.add(Box.createVerticalStrut(22));\n\n JButton btn = UI.primary(\"Login\");\n btn.setMaximumSize(new Dimension(Integer.MAX_VALUE, 42));\n btn.setAlignmentX(Component.LEFT_ALIGNMENT);\n btn.addActionListener(e -> handleLogin());\n inner.add(btn); inner.add(Box.createVerticalStrut(20));\n\n // Red hint box\n JPanel hint = new JPanel();\n hint.setLayout(new BoxLayout(hint, BoxLayout.Y_AXIS));\n hint.setBackground(new Color(0xfb, 0xe9, 0xec));\n hint.setBorder(BorderFactory.createCompoundBorder(\n new LineBorder(new Color(0xe3,0x18,0x37,80), 1, true),\n BorderFactory.createEmptyBorder(10,12,10,12)));\n hint.setAlignmentX(Component.LEFT_ALIGNMENT);\n hint.setMaximumSize(new Dimension(Integer.MAX_VALUE, 130));\n JLabel ht = new JLabel(\"Test Accounts\"); ht.setFont(UI.F_SUB);\n ht.setForeground(UI.YORKU_DARK); ht.setAlignmentX(Component.LEFT_ALIGNMENT);\n hint.add(ht); hint.add(Box.createVerticalStrut(6));\n for (String line : new String[]{\n \"alice@yorku.ca / pass123 → Student\",\n \"bob@yorku.ca / pass123 → Faculty\",\n \"manager@yorku.ca / manager123 → Manager\",\n \"coord@yorku.ca / coord123 → Coordinator\"}) {\n JLabel l = new JLabel(line); l.setFont(UI.F_SMALL); l.setForeground(UI.TEXT_MUTED);\n l.setAlignmentX(Component.LEFT_ALIGNMENT); hint.add(l);\n }\n inner.add(hint);\n return wrapCard(inner);\n }\n\n private JPanel buildRegCard() {\n JPanel inner = UI.card(\"Create Account\");\n regName = UI.formField(inner, \"Full Name\");\n regEmail = UI.formField(inner, \"Email Address\");\n regPass = UI.formPassword(inner, \"Password (min 6 characters)\");\n regType = UI.formCombo(inner, \"User Type\", \"STUDENT\",\"FACULTY\",\"RESEARCHER\",\"GUEST\");\n regStaffID = UI.formField(inner, \"Staff / Student ID or Certification Number (Req8)\");\n regDept = UI.formField(inner, \"Department\");\n JButton btn = UI.primary(\"Create Account\");\n btn.setMaximumSize(new Dimension(Integer.MAX_VALUE, 42));\n btn.setAlignmentX(Component.LEFT_ALIGNMENT);\n btn.addActionListener(e -> handleRegister());\n inner.add(btn);\n return wrapCard(inner);\n }\n\n private JPanel wrapCard(JPanel inner) {\n JPanel w = new JPanel(new BorderLayout());\n w.setBackground(UI.CARD);\n w.setBorder(BorderFactory.createCompoundBorder(\n new LineBorder(UI.BORDER, 1, true),\n BorderFactory.createEmptyBorder(26, 30, 26, 30)));\n w.add(inner); return w;\n }\n\n private void handleLogin() {\n String email = emailField.getText().trim();\n String pass = new String(passField.getPassword()).trim();\n if (email.isEmpty() || pass.isEmpty()) { setStatus(\"Please enter your email and password.\", true); return; }\n try { userDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n User user = userDAO.findByEmail(email);\n if (user == null || !user.getPassword().equals(pass)) { setStatus(\"Invalid email or password.\", true); return; }\n if (\"PENDING\".equals(user.getStatus())) { setStatus(\"Account is pending departmental approval.\", true); return; }\n if (\"REJECTED\".equals(user.getStatus())) { setStatus(\"Account was rejected. Contact the coordinator.\", true); return; }\n setStatus(\"Welcome, \" + user.getName() + \"!\", false);\n frame.onLoginSuccess(user);\n }\n\n private void handleRegister() {\n String name=regName.getText().trim(), email=regEmail.getText().trim();\n String pass=new String(regPass.getPassword()).trim(), type=(String)regType.getSelectedItem();\n String staffID=regStaffID.getText().trim(), dept=regDept.getText().trim();\n if (name.isEmpty()||email.isEmpty()||pass.isEmpty()||staffID.isEmpty()) { setStatus(\"All fields are required.\", true); return; }\n if (pass.length()<6) { setStatus(\"Password must be at least 6 characters.\", true); return; }\n try { userDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n if (userDAO.emailExists(email)) { setStatus(\"Email is already registered.\", true); return; }\n UserFactory factory = new UserFactory();\n User u = factory.getUserType(type);\n u.setUserID(\"U\"+System.currentTimeMillis()); u.setName(name); u.setEmail(email);\n u.setPassword(pass); u.setUserType(type); u.setStaffID(staffID); u.setDepartment(dept);\n u.setStatus(\"GUEST\".equals(type)?\"ACTIVE\":\"PENDING\");\n userDAO.addUser(u);\n try { userDAO.save(); } catch (Exception e) { setStatus(\"Error saving account.\",true); return; }\n setStatus(\"GUEST\".equals(type)?\"Account created! You can now sign in.\":\"Registration submitted — awaiting departmental approval.\", false);\n regName.setText(\"\"); regEmail.setText(\"\"); regPass.setText(\"\"); regStaffID.setText(\"\"); regDept.setText(\"\");\n }\n\n private void setStatus(String msg, boolean error) {\n status.setText(\" \"+msg);\n status.setForeground(error ? UI.DANGER : UI.SUCCESS);\n }\n}\n"
},
{
"path": "D2/src/gui/MainFrame.java",
"content": "package gui;\n\nimport javax.swing.*;\nimport java.awt.*;\nimport model.User;\n\npublic class MainFrame extends JFrame {\n\n private static final long serialVersionUID = 1L;\n private static MainFrame instance;\n\n private CardLayout cardLayout;\n private JPanel mainPanel;\n\n private LoginPanel loginPanel;\n private UserDashboardPanel userDashboard;\n private ManagerDashboardPanel managerDashboard;\n private CoordinatorDashboardPanel coordinatorDashboard;\n\n public static final String LOGIN = \"LOGIN\";\n public static final String USER = \"USER\";\n public static final String MANAGER = \"MANAGER\";\n public static final String COORDINATOR = \"COORDINATOR\";\n\n public static MainFrame getInstance() {\n if (instance == null) instance = new MainFrame();\n return instance;\n }\n\n private MainFrame() {\n super(\"Lab Equipment Reservation System — York University\");\n setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);\n setSize(1100, 700);\n setLocationRelativeTo(null);\n\n cardLayout = new CardLayout();\n mainPanel = new JPanel(cardLayout);\n\n loginPanel = new LoginPanel(this);\n userDashboard = new UserDashboardPanel(this);\n managerDashboard = new ManagerDashboardPanel(this);\n coordinatorDashboard = new CoordinatorDashboardPanel(this);\n\n mainPanel.add(loginPanel, LOGIN);\n mainPanel.add(userDashboard, USER);\n mainPanel.add(managerDashboard, MANAGER);\n mainPanel.add(coordinatorDashboard, COORDINATOR);\n\n add(mainPanel);\n showPanel(LOGIN);\n }\n\n public void showPanel(String name) {\n cardLayout.show(mainPanel, name);\n }\n\n public void onLoginSuccess(User user) {\n String type = user.getUserType().toUpperCase();\n switch (type) {\n case \"COORDINATOR\":\n coordinatorDashboard.setCurrentUser(user);\n coordinatorDashboard.refresh();\n showPanel(COORDINATOR);\n break;\n case \"MANAGER\":\n managerDashboard.setCurrentUser(user);\n managerDashboard.refresh();\n showPanel(MANAGER);\n break;\n default: // STUDENT, FACULTY, RESEARCHER, GUEST\n userDashboard.setCurrentUser(user);\n userDashboard.refresh();\n showPanel(USER);\n break;\n }\n }\n\n public static void main(String[] args) {\n SwingUtilities.invokeLater(() -> MainFrame.getInstance().setVisible(true));\n }\n}\n"
},
{
"path": "D2/src/gui/ManagerDashboardPanel.java",
"content": "package gui;\n\n// pre determined login\nimport javax.swing.*;\nimport javax.swing.table.*;\nimport java.awt.*;\nimport java.util.List;\nimport data.*;\nimport model.*;\nimport pattern.observer.*;\nimport pattern.state.*;\n\npublic class ManagerDashboardPanel extends JPanel {\n private static final long serialVersionUID = 1L;\n\n private MainFrame frame;\n protected User currentUser;\n\n protected EquipmentDAO equipDAO = new EquipmentDAO(\"data/equipment.csv\");\n protected UserDAO userDAO = new UserDAO(\"data/users.csv\");\n protected BookingDAO bookDAO = new BookingDAO(\"data/bookings.csv\");\n\n protected DefaultTableModel equipModel, pendModel, bookModel;\n protected JTable equipTable, pendTable, bookTable;\n private JTextField eqID, eqName, eqDesc, eqType, eqBuilding, eqRoom;\n protected JLabel status;\n private JLabel navInfo;\n\n public ManagerDashboardPanel(MainFrame frame) { this(frame, true); }\n\n protected ManagerDashboardPanel(MainFrame frame, boolean standalone) {\n this.frame = frame;\n if (standalone) build();\n }\n\n public void setCurrentUser(User u) { this.currentUser = u; }\n\n public void refresh() {\n try { equipDAO.load(); userDAO.load(); bookDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n if (currentUser != null && navInfo != null)\n navInfo.setText(\" Lab Manager | \" + currentUser.getName());\n refreshEquip();\n refreshPending();\n refreshAllBookings();\n }\n\n protected void build() {\n setBackground(UI.BG);\n setLayout(new BorderLayout());\n\n JButton logout = UI.button(\"Logout\", UI.DANGER);\n logout.addActionListener(e -> frame.showPanel(MainFrame.LOGIN));\n navInfo = new JLabel(\" \");\n navInfo.setForeground(new Color(148,163,184));\n navInfo.setFont(new Font(\"SansSerif\", Font.PLAIN, 12));\n JPanel nav = UI.navBar(\"🔧 Manager Console\", \"\", logout);\n nav.add(navInfo, BorderLayout.CENTER);\n add(nav, BorderLayout.NORTH);\n\n JTabbedPane tabs = buildTabs();\n add(tabs, BorderLayout.CENTER);\n\n status = UI.statusBar();\n add(status, BorderLayout.SOUTH);\n }\n\n protected JTabbedPane buildTabs() {\n JTabbedPane tabs = new JTabbedPane();\n tabs.setFont(new Font(\"SansSerif\", Font.BOLD, 12));\n tabs.addTab(\"⚠ Pending Approvals\", buildPendingTab());\n tabs.addTab(\"🔬 Equipment\", buildEquipTab());\n tabs.addTab(\"➕ Add Equipment\", buildAddTab());\n tabs.addTab(\"📋 All Bookings\", buildBookingsTab());\n return tabs;\n }\n\n protected JPanel buildPendingTab() {\n JPanel p = new JPanel(new BorderLayout(10, 10));\n p.setBackground(UI.BG);\n p.setBorder(BorderFactory.createEmptyBorder(14,14,14,14));\n p.add(UI.heading(\"Pending Account Approvals (Req1)\"), BorderLayout.NORTH);\n\n pendModel = UI.tableModel(\"User ID\",\"Name\",\"Email\",\"Type\",\"Staff/Cert ID\",\"Department\",\"Status\");\n pendTable = UI.styledTable(pendModel);\n pendTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);\n p.add(new JScrollPane(pendTable), BorderLayout.CENTER);\n\n JPanel btns = new JPanel(new FlowLayout(FlowLayout.LEFT, 8, 8));\n btns.setBackground(UI.BG);\n JButton approve = UI.button(\"✔ Approve\", UI.SUCCESS);\n JButton reject = UI.button(\"✘ Reject\", UI.DANGER);\n JButton refresh = UI.button(\"↻ Refresh\", UI.YORKU_RED);\n approve.addActionListener(e -> approve());\n reject.addActionListener(e -> reject());\n refresh.addActionListener(e -> refreshPending());\n btns.add(approve); btns.add(reject); btns.add(refresh);\n p.add(btns, BorderLayout.SOUTH);\n return p;\n }\n\n protected JPanel buildEquipTab() {\n JPanel p = new JPanel(new BorderLayout(10, 10));\n p.setBackground(UI.BG);\n p.setBorder(BorderFactory.createEmptyBorder(14,14,14,14));\n p.add(UI.heading(\"Equipment Management (Req6)\"), BorderLayout.NORTH);\n\n equipModel = UI.tableModel(\"ID\",\"Name\",\"Description\",\"Type\",\"Status\",\"Building\",\"Room\");\n equipTable = UI.styledTable(equipModel);\n equipTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);\n p.add(new JScrollPane(equipTable), BorderLayout.CENTER);\n\n JPanel btns = new JPanel(new FlowLayout(FlowLayout.LEFT, 8, 8));\n btns.setBackground(UI.BG);\n JButton enable = UI.button(\"✔ Enable\", UI.SUCCESS);\n JButton disable = UI.button(\"✘ Disable\", UI.WARNING);\n JButton maint = UI.button(\"🔧 Maintenance\", UI.DANGER);\n enable.addActionListener(e -> changeStatus(\"AVAILABLE\"));\n disable.addActionListener(e -> changeStatus(\"DISABLED\"));\n maint.addActionListener(e -> changeStatus(\"MAINTENANCE\"));\n btns.add(enable); btns.add(disable); btns.add(maint);\n p.add(btns, BorderLayout.SOUTH);\n return p;\n }\n\n protected JPanel buildAddTab() {\n JPanel outer = new JPanel(new GridBagLayout());\n outer.setBackground(UI.BG);\n\n JPanel form = UI.card(\"Add New Equipment (Req6, Req7)\");\n eqID = addField(form, \"Equipment ID (required — Req7)\");\n eqName = addField(form, \"Name\");\n eqDesc = addField(form, \"Description (required — Req7)\");\n eqType = addField(form, \"Type\");\n eqBuilding = addField(form, \"Building Name (required — Req7)\");\n eqRoom = addField(form, \"Room Number (required — Req7)\");\n form.add(Box.createVerticalStrut(12));\n JButton add = UI.button(\"Add Equipment\", UI.YORKU_RED);\n add.setAlignmentX(Component.LEFT_ALIGNMENT);\n add.addActionListener(e -> addEquipment());\n form.add(add);\n\n JPanel wrap = new JPanel(new BorderLayout());\n wrap.setBackground(UI.CARD);\n wrap.setBorder(BorderFactory.createLineBorder(UI.BORDER));\n wrap.add(form, BorderLayout.CENTER);\n outer.add(wrap);\n return outer;\n }\n\n protected JPanel buildBookingsTab() {\n JPanel p = new JPanel(new BorderLayout(10, 10));\n p.setBackground(UI.BG);\n p.setBorder(BorderFactory.createEmptyBorder(14,14,14,14));\n p.add(UI.heading(\"All Bookings / Usage Report (Req5, Req8)\"), BorderLayout.NORTH);\n\n bookModel = UI.tableModel(\"Booking ID\",\"User\",\"Equipment\",\"Start\",\"End\",\"Status\",\"Deposit\",\"Payment\");\n bookTable = UI.styledTable(bookModel);\n p.add(new JScrollPane(bookTable), BorderLayout.CENTER);\n\n JButton refresh = UI.button(\"↻ Refresh\", UI.YORKU_RED);\n refresh.addActionListener(e -> refreshAllBookings());\n JPanel btns = new JPanel(new FlowLayout(FlowLayout.LEFT, 8, 8));\n btns.setBackground(UI.BG);\n btns.add(refresh);\n p.add(btns, BorderLayout.SOUTH);\n return p;\n }\n\n protected void refreshEquip() {\n if (equipModel == null) return;\n equipModel.setRowCount(0);\n for (Equipment eq : equipDAO.getAllEquipment())\n equipModel.addRow(new Object[]{\n eq.getEquipmentID(), eq.getName(), eq.getDescription(),\n eq.getType(), eq.getStatus(), eq.getBuildingName(), eq.getRoomNumber()\n });\n }\n\n protected void refreshPending() {\n if (pendModel == null) return;\n try { userDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n pendModel.setRowCount(0);\n int count = 0;\n for (User u : userDAO.getAllUsers()) {\n if (\"PENDING\".equals(u.getStatus())) {\n pendModel.addRow(new Object[]{\n u.getUserID(), u.getName(), u.getEmail(),\n u.getUserType(), u.getStaffID(), u.getDepartment(), u.getStatus()\n });\n count++;\n }\n }\n if (status != null)\n UI.setStatus(status, count > 0 ? count + \" pending approval(s)\" : \"No pending approvals\", count > 0);\n }\n\n protected void refreshAllBookings() {\n if (bookModel == null) return;\n try { bookDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n bookModel.setRowCount(0);\n for (Reservation r : bookDAO.getAllBookings())\n bookModel.addRow(new Object[]{\n r.getBookingID(), r.getUserID(), r.getEquipmentID(),\n r.getStartTime(), r.getEndTime(), r.getStatus(),\n \"$\"+r.getDepositAmount(), r.getPaymentMethod()\n });\n }\n\n private void approve() {\n int row = pendTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a user to approve.\", true); return; }\n String uid = (String) pendModel.getValueAt(row, 0);\n String name = (String) pendModel.getValueAt(row, 1);\n User u = userDAO.findByID(uid);\n if (u == null) return;\n u.setStatus(\"ACTIVE\");\n userDAO.updateUser(u);\n try { userDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"✔ Approved: \" + name + \". They can now log in.\", false);\n refreshPending();\n }\n\n private void reject() {\n int row = pendTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a user to reject.\", true); return; }\n String uid = (String) pendModel.getValueAt(row, 0);\n String name = (String) pendModel.getValueAt(row, 1);\n User u = userDAO.findByID(uid);\n if (u == null) return;\n u.setStatus(\"REJECTED\");\n userDAO.updateUser(u);\n try { userDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"✘ Rejected: \" + name, false);\n refreshPending();\n }\n\n protected void changeStatus(String newStatus) {\n int row = equipTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select equipment.\", true); return; }\n String eqid = (String) equipModel.getValueAt(row, 0);\n Equipment eq = equipDAO.findByID(eqid);\n if (eq == null) return;\n\n EquipmentContext ctx = new EquipmentContext(eqid, eq.getStatus());\n List affected = new java.util.ArrayList<>();\n for (Reservation r : bookDAO.getBookingsByEquipment(eqid))\n if (\"CONFIRMED\".equals(r.getStatus())) {\n User u = userDAO.findByID(r.getUserID());\n if (u != null) affected.add(u);\n }\n UserNotificationObserver notifier = new UserNotificationObserver(affected);\n ctx.registerObserver(notifier);\n\n switch (newStatus) {\n case \"AVAILABLE\": ctx.enable(); break;\n case \"DISABLED\": ctx.disable(); break;\n case \"MAINTENANCE\": ctx.markUnderMaintenance(); break;\n }\n eq.setStatus(ctx.getStatusString());\n equipDAO.updateEquipment(eq);\n try { equipDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n\n String log = notifier.getNotificationLog();\n UI.setStatus(status, eqid + \" → \" + newStatus\n + (log.isEmpty() ? \"\" : \" | Notified \" + affected.size() + \" user(s)\"), false);\n refreshEquip();\n }\n\n private void addEquipment() {\n String id = eqID.getText().trim(), name = eqName.getText().trim();\n String desc = eqDesc.getText().trim(), type = eqType.getText().trim();\n String bld = eqBuilding.getText().trim(), room = eqRoom.getText().trim();\n if (id.isEmpty() || name.isEmpty() || desc.isEmpty() || bld.isEmpty() || room.isEmpty()) {\n UI.setStatus(status, \"ID, Name, Description, Building and Room are required (Req7).\", true); return;\n }\n if (equipDAO.findByID(id) != null) { UI.setStatus(status, \"Equipment ID already exists.\", true); return; }\n equipDAO.addEquipment(new Equipment(id, name, desc, type, \"AVAILABLE\", bld, room));\n try { equipDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"Equipment \" + id + \" added.\", false);\n refreshEquip();\n eqID.setText(\"\"); eqName.setText(\"\"); eqDesc.setText(\"\"); eqType.setText(\"\"); eqBuilding.setText(\"\"); eqRoom.setText(\"\");\n }\n\n protected JTextField addField(JPanel form, String labelText) {\n form.add(UI.label(labelText));\n form.add(Box.createVerticalStrut(2));\n JTextField f = UI.field(\"\");\n f.setMaximumSize(new Dimension(380, 34));\n form.add(f);\n form.add(Box.createVerticalStrut(10));\n return f;\n }\n}\n"
},
{
"path": "D2/src/gui/UI.java",
"content": "package gui;\n\nimport javax.swing.*;\nimport javax.swing.border.*;\nimport javax.swing.table.*;\nimport java.awt.*;\nimport java.awt.event.*;\n\npublic class UI {\n public static final Color YORKU_RED = new Color(0xe3, 0x18, 0x37);\n public static final Color YORKU_DARK = new Color(0xb8, 0x10, 0x2a);\n public static final Color BG = new Color(0xf5, 0xf6, 0xf8);\n public static final Color CARD = Color.WHITE;\n public static final Color NAV_BG = new Color(0x1a, 0x1a, 0x2e);\n public static final Color NAV_FG = new Color(0xe8, 0xe8, 0xf0);\n public static final Color HEADER_BG = new Color(0xf8, 0xf9, 0xfa);\n public static final Color BORDER = new Color(0xd8, 0xda, 0xde);\n public static final Color ROW_ALT = new Color(0xfa, 0xfb, 0xfc);\n public static final Color ROW_SEL_BG = new Color(0xfb, 0xe9, 0xec);\n public static final Color ROW_SEL_FG = new Color(0x8c, 0x0b, 0x1e);\n public static final Color TEXT = new Color(0x1a, 0x1a, 0x2e);\n public static final Color TEXT_MUTED = new Color(0x6c, 0x75, 0x7d);\n public static final Color SUCCESS = new Color(0x19, 0x87, 0x54);\n public static final Color DANGER = new Color(0xdc, 0x35, 0x45);\n public static final Color WARNING = new Color(0xd9, 0x73, 0x06);\n public static final Color INFO = new Color(0x0d, 0x6e, 0xfd);\n public static final Color SECONDARY = new Color(0x6c, 0x75, 0x7d);\n\n public static final Font F_TITLE = new Font(\"Segoe UI\", Font.BOLD, 22);\n public static final Font F_HEAD = new Font(\"Segoe UI\", Font.BOLD, 16);\n public static final Font F_SUB = new Font(\"Segoe UI\", Font.BOLD, 13);\n public static final Font F_BODY = new Font(\"Segoe UI\", Font.PLAIN, 13);\n public static final Font F_SMALL = new Font(\"Segoe UI\", Font.PLAIN, 11);\n public static final Font F_LABEL = new Font(\"Segoe UI\", Font.BOLD, 11);\n\n public static JButton button(String text, Color bg) {\n Color hover = bg.darker();\n JButton b = new JButton(text);\n b.setFont(F_SUB); b.setForeground(Color.WHITE); b.setBackground(bg);\n b.setOpaque(true); b.setBorderPainted(false); b.setFocusPainted(false);\n b.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));\n b.setBorder(BorderFactory.createEmptyBorder(8, 16, 8, 16));\n b.addMouseListener(new MouseAdapter() {\n public void mouseEntered(MouseEvent e) { b.setBackground(hover); }\n public void mouseExited(MouseEvent e) { b.setBackground(bg); }\n });\n return b;\n }\n\n public static JButton primary(String t) { return button(t, YORKU_RED); }\n public static JButton secondary(String t) { return button(t, SECONDARY); }\n public static JButton success(String t) { return button(t, SUCCESS); }\n public static JButton danger(String t) { return button(t, DANGER); }\n public static JButton warning(String t) { return button(t, WARNING); }\n public static JButton info(String t) { return button(t, INFO); }\n\n public static JTextField field(String placeholder) {\n JTextField f = new JTextField(placeholder);\n styleInput(f); return f;\n }\n public static JPasswordField password() {\n JPasswordField f = new JPasswordField();\n styleInput(f); return f;\n }\n public static JComboBox combo(String... items) {\n JComboBox c = new JComboBox<>(items);\n c.setFont(F_BODY); c.setBackground(CARD);\n c.setBorder(inputBorder());\n c.setMaximumSize(new Dimension(Integer.MAX_VALUE, 36));\n c.setAlignmentX(Component.LEFT_ALIGNMENT);\n return c;\n }\n private static void styleInput(JTextField f) {\n f.setFont(F_BODY); f.setBackground(CARD);\n f.setMaximumSize(new Dimension(Integer.MAX_VALUE, 36));\n f.setAlignmentX(Component.LEFT_ALIGNMENT);\n f.setBorder(inputBorder());\n f.addFocusListener(new FocusAdapter() {\n public void focusGained(FocusEvent e) {\n f.setBorder(BorderFactory.createCompoundBorder(\n new LineBorder(YORKU_RED, 2, true),\n BorderFactory.createEmptyBorder(5, 9, 5, 9)));\n }\n public void focusLost(FocusEvent e) { f.setBorder(inputBorder()); }\n });\n }\n private static Border inputBorder() {\n return BorderFactory.createCompoundBorder(\n new LineBorder(BORDER, 1, true),\n BorderFactory.createEmptyBorder(6, 10, 6, 10));\n }\n\n public static JLabel heading(String t) {\n JLabel l = new JLabel(t); l.setFont(F_HEAD); l.setForeground(TEXT); return l;\n }\n public static JLabel label(String t) {\n JLabel l = new JLabel(t); l.setFont(F_LABEL); l.setForeground(TEXT_MUTED);\n l.setAlignmentX(Component.LEFT_ALIGNMENT);\n l.setBorder(BorderFactory.createEmptyBorder(0,0,2,0)); return l;\n }\n\n public static JPanel navBar(String appTitle, String userInfo, JButton... actions) {\n JPanel bar = new JPanel(new BorderLayout());\n bar.setBackground(NAV_BG);\n bar.setBorder(BorderFactory.createMatteBorder(0, 0, 3, 0, YORKU_RED));\n JPanel left = new JPanel(new FlowLayout(FlowLayout.LEFT, 0, 0));\n left.setBackground(NAV_BG);\n JLabel badge = new JLabel(\" Y \");\n badge.setFont(new Font(\"Segoe UI\", Font.BOLD, 14));\n badge.setForeground(Color.WHITE); badge.setBackground(YORKU_RED); badge.setOpaque(true);\n badge.setBorder(BorderFactory.createEmptyBorder(10,12,10,12));\n left.add(badge);\n JLabel title = new JLabel(\" \" + appTitle);\n title.setFont(F_HEAD); title.setForeground(NAV_FG);\n left.add(title);\n JLabel info = new JLabel(userInfo);\n info.setFont(F_SMALL); info.setForeground(new Color(0xa0,0xa8,0xb8));\n info.setHorizontalAlignment(SwingConstants.CENTER);\n JPanel right = new JPanel(new FlowLayout(FlowLayout.RIGHT, 8, 8));\n right.setBackground(NAV_BG);\n for (JButton a : actions) right.add(a);\n bar.add(left, BorderLayout.WEST);\n bar.add(info, BorderLayout.CENTER);\n bar.add(right, BorderLayout.EAST);\n return bar;\n }\n\n public static JPanel card(String title) {\n JPanel p = new JPanel();\n p.setLayout(new BoxLayout(p, BoxLayout.Y_AXIS));\n p.setBackground(CARD);\n if (title != null) {\n JLabel h = new JLabel(title); h.setFont(F_HEAD); h.setForeground(TEXT);\n h.setAlignmentX(Component.LEFT_ALIGNMENT);\n h.setBorder(BorderFactory.createEmptyBorder(0,0,10,0));\n p.add(h);\n JSeparator sep = new JSeparator();\n sep.setForeground(new Color(0xe3,0x18,0x37,60));\n sep.setMaximumSize(new Dimension(Integer.MAX_VALUE, 2));\n p.add(sep); p.add(Box.createVerticalStrut(14));\n }\n return p;\n }\n\n public static JLabel statusBar() {\n JLabel l = new JLabel(\" Ready\"); l.setFont(F_SMALL); l.setForeground(TEXT_MUTED);\n l.setBackground(HEADER_BG); l.setOpaque(true);\n l.setBorder(BorderFactory.createMatteBorder(1,0,0,0,BORDER));\n l.setPreferredSize(new Dimension(0, 28)); return l;\n }\n public static void setStatus(JLabel bar, String msg, boolean error) {\n bar.setText(\" \" + msg);\n bar.setForeground(error ? DANGER : SUCCESS);\n }\n\n public static DefaultTableModel tableModel(String... cols) {\n return new DefaultTableModel(cols, 0) {\n public boolean isCellEditable(int r, int c) { return false; }\n };\n }\n public static JTable styledTable(DefaultTableModel model) {\n JTable t = new JTable(model) {\n public Component prepareRenderer(TableCellRenderer r, int row, int col) {\n Component c = super.prepareRenderer(r, row, col);\n if (isRowSelected(row)) { c.setBackground(ROW_SEL_BG); c.setForeground(ROW_SEL_FG); }\n else { c.setBackground(row%2==0?CARD:ROW_ALT); c.setForeground(TEXT); }\n return c;\n }\n };\n t.setFont(F_BODY); t.setRowHeight(30); t.setShowVerticalLines(false);\n t.setShowHorizontalLines(true); t.setGridColor(new Color(0xee,0xee,0xf2));\n t.setIntercellSpacing(new Dimension(0,0));\n t.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);\n t.setFillsViewportHeight(true);\n JTableHeader hdr = t.getTableHeader();\n hdr.setFont(F_SUB); hdr.setForeground(TEXT_MUTED); hdr.setBackground(HEADER_BG);\n hdr.setBorder(BorderFactory.createMatteBorder(0,0,2,0,BORDER));\n hdr.setReorderingAllowed(false);\n hdr.setPreferredSize(new Dimension(hdr.getPreferredSize().width, 36));\n return t;\n }\n public static JScrollPane scroll(JTable t) {\n JScrollPane sp = new JScrollPane(t);\n sp.setBorder(BorderFactory.createLineBorder(BORDER));\n sp.getViewport().setBackground(CARD); return sp;\n }\n public static JTabbedPane tabs() {\n JTabbedPane tp = new JTabbedPane();\n tp.setFont(F_SUB); tp.setBackground(BG); tp.setBorder(null); return tp;\n }\n public static JTextField formField(JPanel form, String lbl) {\n form.add(label(lbl)); form.add(Box.createVerticalStrut(3));\n JTextField f = field(\"\"); f.setMaximumSize(new Dimension(400,36)); form.add(f);\n form.add(Box.createVerticalStrut(12)); return f;\n }\n public static JPasswordField formPassword(JPanel form, String lbl) {\n form.add(label(lbl)); form.add(Box.createVerticalStrut(3));\n JPasswordField f = password(); f.setMaximumSize(new Dimension(400,36)); form.add(f);\n form.add(Box.createVerticalStrut(12)); return f;\n }\n public static JComboBox formCombo(JPanel form, String lbl, String... items) {\n form.add(label(lbl)); form.add(Box.createVerticalStrut(3));\n JComboBox c = combo(items); c.setMaximumSize(new Dimension(400,36)); form.add(c);\n form.add(Box.createVerticalStrut(12)); return c;\n }\n public static JPanel tabContent() {\n JPanel p = new JPanel(new BorderLayout(0,10));\n p.setBackground(BG); p.setBorder(BorderFactory.createEmptyBorder(14,14,14,14)); return p;\n }\n public static JPanel buttonRow(JButton... buttons) {\n JPanel row = new JPanel(new FlowLayout(FlowLayout.LEFT, 8, 0));\n row.setBackground(BG); row.setBorder(BorderFactory.createEmptyBorder(0,0,10,0));\n for (JButton b : buttons) row.add(b); return row;\n }\n}\n"
},
{
"path": "D2/src/gui/UserDashboardPanel.java",
"content": "package gui;\n\nimport javax.swing.*;\nimport javax.swing.table.*;\nimport java.awt.*;\nimport data.*;\nimport model.*;\nimport pattern.command.*;\nimport pattern.singleton.BookingSystem;\nimport pattern.strategy.*;\n\npublic class UserDashboardPanel extends JPanel {\n private static final long serialVersionUID = 1L;\n\n private MainFrame frame;\n private User currentUser;\n\n private EquipmentDAO equipDAO = new EquipmentDAO(\"data/equipment.csv\");\n private BookingDAO bookDAO = new BookingDAO(\"data/bookings.csv\");\n private ReservationService svc = new ReservationService();\n\n private DefaultTableModel equipModel, bookModel;\n private JTable equipTable, bookTable;\n private JTextField startField, endField, extendField;\n private JComboBox payCombo;\n private JLabel status, userInfo;\n\n public UserDashboardPanel(MainFrame frame) {\n this.frame = frame;\n build();\n }\n\n public void setCurrentUser(User u) { this.currentUser = u; }\n\n public void refresh() {\n try { equipDAO.load(); bookDAO.load(); } catch (Exception e) { e.printStackTrace(); }\n if (currentUser != null)\n userInfo.setText(\" \" + currentUser.getUserType() + \" | \" + currentUser.getName()\n + \" | Fee: $\" + currentUser.getFeeRate() + \"/hr | ID: \" + currentUser.getStaffID());\n refreshEquip();\n refreshBookings();\n }\n\n private void build() {\n setBackground(UI.BG);\n setLayout(new BorderLayout());\n\n // Nav\n JButton logout = UI.button(\"Logout\", UI.DANGER);\n logout.addActionListener(e -> frame.showPanel(MainFrame.LOGIN));\n userInfo = new JLabel(\" \");\n userInfo.setFont(new Font(\"SansSerif\", Font.PLAIN, 12));\n userInfo.setForeground(new Color(148, 163, 184));\n JPanel nav = UI.navBar(\"🔬 Lab Equipment Reservation\", \"\", logout);\n nav.add(userInfo, BorderLayout.CENTER);\n add(nav, BorderLayout.NORTH);\n\n // Content\n JTabbedPane tabs = new JTabbedPane();\n tabs.setFont(new Font(\"SansSerif\", Font.BOLD, 12));\n tabs.setBackground(UI.BG);\n tabs.addTab(\"Browse & Reserve Equipment\", buildBrowseTab());\n tabs.addTab(\"My Bookings\", buildBookingsTab());\n add(tabs, BorderLayout.CENTER);\n\n // Status\n status = UI.statusBar();\n add(status, BorderLayout.SOUTH);\n }\n\n private JPanel buildBrowseTab() {\n JPanel p = new JPanel(new BorderLayout(10, 10));\n p.setBackground(UI.BG);\n p.setBorder(BorderFactory.createEmptyBorder(14, 14, 14, 14));\n\n // Equipment table\n equipModel = UI.tableModel(\"ID\", \"Name\", \"Description\", \"Type\", \"Status\", \"Location\");\n equipTable = UI.styledTable(equipModel);\n equipTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);\n JScrollPane scroll = new JScrollPane(equipTable);\n scroll.setBorder(BorderFactory.createTitledBorder(\n BorderFactory.createLineBorder(UI.BORDER), \"Available Equipment (Req3)\"));\n p.add(scroll, BorderLayout.CENTER);\n\n // Booking form\n JPanel form = new JPanel(new GridBagLayout());\n form.setBackground(UI.CARD);\n form.setBorder(BorderFactory.createCompoundBorder(\n BorderFactory.createTitledBorder(BorderFactory.createLineBorder(UI.BORDER),\n \"Make a Reservation (Req3, Req4, Req10)\"),\n BorderFactory.createEmptyBorder(10, 12, 10, 12)\n ));\n\n GridBagConstraints gc = new GridBagConstraints();\n gc.insets = new Insets(4, 6, 4, 6);\n gc.fill = GridBagConstraints.HORIZONTAL;\n\n gc.gridx=0; gc.gridy=0; form.add(new JLabel(\"Start (yyyy-MM-dd HH:mm):\"), gc);\n gc.gridx=1; startField = UI.field(\"2026-04-10 09:00\"); form.add(startField, gc);\n\n gc.gridx=2; form.add(new JLabel(\"End (yyyy-MM-dd HH:mm):\"), gc);\n gc.gridx=3; endField = UI.field(\"2026-04-10 11:00\"); form.add(endField, gc);\n\n gc.gridx=4; form.add(new JLabel(\"Payment Method (Req10):\"), gc);\n gc.gridx=5; payCombo = new JComboBox<>(new String[]{\"CREDIT\",\"DEBIT\",\"INSTITUTIONAL\",\"GRANT\"});\n payCombo.setFont(new Font(\"SansSerif\", Font.PLAIN, 12));\n form.add(payCombo, gc);\n\n gc.gridx=6;\n JButton resBtn = UI.button(\"Reserve Selected\", UI.YORKU_RED);\n resBtn.addActionListener(e -> reserve());\n form.add(resBtn, gc);\n\n p.add(form, BorderLayout.SOUTH);\n return p;\n }\n\n private JPanel buildBookingsTab() {\n JPanel p = new JPanel(new BorderLayout(10, 10));\n p.setBackground(UI.BG);\n p.setBorder(BorderFactory.createEmptyBorder(14, 14, 14, 14));\n\n bookModel = UI.tableModel(\"Booking ID\",\"Equipment\",\"Start\",\"End\",\"Status\",\"Deposit\",\"Payment\",\"Extended\");\n bookTable = UI.styledTable(bookModel);\n bookTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);\n JScrollPane scroll = new JScrollPane(bookTable);\n scroll.setBorder(BorderFactory.createTitledBorder(\n BorderFactory.createLineBorder(UI.BORDER), \"My Bookings\"));\n p.add(scroll, BorderLayout.CENTER);\n\n // Action buttons\n JPanel actions = new JPanel(new FlowLayout(FlowLayout.LEFT, 10, 8));\n actions.setBackground(UI.CARD);\n actions.setBorder(BorderFactory.createTitledBorder(\n BorderFactory.createLineBorder(UI.BORDER), \"Booking Actions (Req8, Req9, Req4)\"));\n\n JButton cancelBtn = UI.button(\"Cancel Booking (Req8)\", UI.DANGER);\n cancelBtn.addActionListener(e -> cancelBooking());\n actions.add(cancelBtn);\n\n actions.add(new JLabel(\" Extend to (yyyy-MM-dd HH:mm):\"));\n extendField = UI.field(\"2026-04-10 13:00\");\n extendField.setPreferredSize(new Dimension(160, 32));\n actions.add(extendField);\n\n JButton extBtn = UI.button(\"Extend Reservation (Req9)\", UI.YORKU_RED);\n extBtn.addActionListener(e -> extend());\n actions.add(extBtn);\n\n JButton forfeitBtn = UI.button(\"Simulate No-Show / Forfeit Deposit (Req4)\", UI.WARNING);\n forfeitBtn.addActionListener(e -> forfeit());\n actions.add(forfeitBtn);\n\n p.add(actions, BorderLayout.SOUTH);\n return p;\n }\n\n private void refreshEquip() {\n equipModel.setRowCount(0);\n for (Equipment eq : equipDAO.getAllEquipment())\n equipModel.addRow(new Object[]{\n eq.getEquipmentID(), eq.getName(), eq.getDescription(),\n eq.getType(), eq.getStatus(),\n eq.getBuildingName() + \" Rm \" + eq.getRoomNumber()\n });\n }\n\n private void refreshBookings() {\n bookModel.setRowCount(0);\n if (currentUser == null) return;\n for (Reservation r : bookDAO.getBookingsByUser(currentUser.getUserID()))\n bookModel.addRow(new Object[]{\n r.getBookingID(), r.getEquipmentID(),\n r.getStartTime(), r.getEndTime(), r.getStatus(),\n \"$\" + r.getDepositAmount(), r.getPaymentMethod(),\n r.isExtended() ? \"Yes\" : \"No\"\n });\n }\n\n private void reserve() {\n int row = equipTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select equipment first.\", true); return; }\n String eqID = (String) equipModel.getValueAt(row, 0);\n String eqStat = (String) equipModel.getValueAt(row, 4);\n if (!\"AVAILABLE\".equals(eqStat)) { UI.setStatus(status, \"Equipment is not available.\", true); return; }\n\n String start = startField.getText().trim();\n String end = endField.getText().trim();\n String pay = (String) payCombo.getSelectedItem();\n if (start.isEmpty() || end.isEmpty()) { UI.setStatus(status, \"Enter start and end times.\", true); return; }\n\n double deposit = currentUser.getFeeRate();\n PaymentStrategy strategy = payStrategy(pay);\n String bkID = \"B\" + System.currentTimeMillis();\n PaymentTransaction txn = new PaymentTransaction(\"T\" + System.currentTimeMillis(), bkID, deposit, pay);\n if (!new PaymentProcessor(strategy).processPayment(txn)) {\n UI.setStatus(status, \"Payment failed.\", true); return;\n }\n\n Reservation r = new Reservation(bkID, currentUser.getUserID(), eqID, start, end, pay, deposit);\n new ReserveCommand(svc, r).execute();\n bookDAO.addBooking(r);\n BookingSystem.getInstance().addBooking(r);\n try { bookDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n\n UI.setStatus(status, \"✔ Reserved \" + eqID + \" | Booking: \" + bkID + \" | Deposit: $\" + deposit + \" via \" + pay, false);\n refreshBookings();\n }\n\n private void cancelBooking() {\n int row = bookTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a booking to cancel.\", true); return; }\n String bkID = (String) bookModel.getValueAt(row, 0);\n Reservation r = bookDAO.findByID(bkID);\n if (r == null) return;\n new CancelCommand(svc, r).execute();\n bookDAO.updateBooking(r);\n try { bookDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"Booking \" + bkID + \" cancelled.\", false);\n refreshBookings();\n }\n\n private void extend() {\n int row = bookTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a booking to extend.\", true); return; }\n String bkID = (String) bookModel.getValueAt(row, 0);\n Reservation r = bookDAO.findByID(bkID);\n if (r == null || !\"CONFIRMED\".equals(r.getStatus())) {\n UI.setStatus(status, \"Cannot extend this booking.\", true); return;\n }\n String newEnd = extendField.getText().trim();\n if (newEnd.isEmpty()) { UI.setStatus(status, \"Enter new end time.\", true); return; }\n new ExtendCommand(svc, r, newEnd).execute();\n bookDAO.updateBooking(r);\n try { bookDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"Booking extended to \" + newEnd, false);\n refreshBookings();\n }\n\n private void forfeit() {\n int row = bookTable.getSelectedRow();\n if (row < 0) { UI.setStatus(status, \"Select a booking.\", true); return; }\n String bkID = (String) bookModel.getValueAt(row, 0);\n Reservation r = bookDAO.findByID(bkID);\n if (r == null) return;\n new ForfeitDepositCommand(svc, r).execute();\n bookDAO.updateBooking(r);\n try { bookDAO.save(); } catch (Exception e) { e.printStackTrace(); }\n UI.setStatus(status, \"Deposit forfeited. Amount lost: $\" + r.getDepositAmount(), false);\n refreshBookings();\n }\n\n private PaymentStrategy payStrategy(String m) {\n switch(m) {\n case \"DEBIT\": return new DebitPayment();\n case \"INSTITUTIONAL\": return new InstitutionalPayment();\n case \"GRANT\": return new GrantPayment();\n default: return new CreditCardPayment();\n }\n }\n}\n"
},
{
"path": "D2/src/model/.gitkeep",
"content": ""
},
{
"path": "D2/src/model/Deposit.java",
"content": "package model;\n\npublic class Deposit {\n private double amount;\n private boolean isForfeited;\n private boolean deductedFromTotal;\n\n public Deposit() {}\n\n public Deposit(double amount) {\n this.amount = amount;\n this.isForfeited = false;\n this.deductedFromTotal = false;\n }\n\n // Called when user is >20 min late (Req4)\n public void forfeit() {\n this.isForfeited = true;\n }\n\n public double getAmount() { return amount; }\n public void setAmount(double amount) { this.amount = amount; }\n\n public boolean isForfeited() { return isForfeited; }\n public void setForfeited(boolean forfeited) { isForfeited = forfeited; }\n\n public boolean isDeductedFromTotal() { return deductedFromTotal; }\n public void setDeductedFromTotal(boolean deductedFromTotal) {\n this.deductedFromTotal = deductedFromTotal;\n }\n}\n"
},
{
"path": "D2/src/model/Equipment.java",
"content": "package model;\n\npublic class Equipment {\n private String equipmentID;\n private String name;\n private String description;\n private String type;\n private String status; // AVAILABLE, DISABLED, MAINTENANCE\n private String buildingName;\n private String roomNumber;\n\n public Equipment() {}\n\n public Equipment(String equipmentID, String name, String description,\n String type, String status, String buildingName, String roomNumber) {\n this.equipmentID = equipmentID;\n this.name = name;\n this.description = description;\n this.type = type;\n this.status = status;\n this.buildingName = buildingName;\n this.roomNumber = roomNumber;\n }\n\n public LabLocation getLabLocation() {\n return new LabLocation(buildingName, roomNumber);\n }\n\n public boolean isAvailable() {\n return \"AVAILABLE\".equals(status);\n }\n\n // Getters and Setters\n public String getEquipmentID() { return equipmentID; }\n public void setEquipmentID(String equipmentID) { this.equipmentID = equipmentID; }\n\n public String getName() { return name; }\n public void setName(String name) { this.name = name; }\n\n public String getDescription() { return description; }\n public void setDescription(String description) { this.description = description; }\n\n public String getType() { return type; }\n public void setType(String type) { this.type = type; }\n\n public String getStatus() { return status; }\n public void setStatus(String status) { this.status = status; }\n\n public String getBuildingName() { return buildingName; }\n public void setBuildingName(String buildingName) { this.buildingName = buildingName; }\n\n public String getRoomNumber() { return roomNumber; }\n public void setRoomNumber(String roomNumber) { this.roomNumber = roomNumber; }\n\n @Override\n public String toString() {\n return equipmentID + \" - \" + name + \" [\" + status + \"] @ \" + buildingName + \" \" + roomNumber;\n }\n}\n"
},
{
"path": "D2/src/model/Faculty.java",
"content": "package model;\n\npublic class Faculty extends User {\n private static final double HOURLY_FEE = 15.0;\n\n public Faculty() {}\n\n public Faculty(String userID, String name, String email, String password,\n String staffID, String status, String department) {\n super(userID, name, email, password, \"FACULTY\", staffID, status, department);\n }\n\n @Override\n public double getFeeRate() {\n return HOURLY_FEE;\n }\n}\n"
},
{
"path": "D2/src/model/Guest.java",
"content": "package model;\n\npublic class Guest extends User {\n private static final double HOURLY_FEE = 30.0;\n private String certificationNumber;\n\n public Guest() {}\n\n public Guest(String userID, String name, String email, String password,\n String certificationNumber, String status, String department) {\n super(userID, name, email, password, \"GUEST\", certificationNumber, status, department);\n this.certificationNumber = certificationNumber;\n }\n\n @Override\n public double getFeeRate() {\n return HOURLY_FEE;\n }\n\n public String getCertificationNumber() { return certificationNumber; }\n public void setCertificationNumber(String certificationNumber) {\n this.certificationNumber = certificationNumber;\n }\n}\n"
},
{
"path": "D2/src/model/HeadLabCoordinator.java",
"content": "package model;\n\npublic class HeadLabCoordinator extends User {\n private static final double HOURLY_FEE = 0.0;\n\n public HeadLabCoordinator() {}\n\n public HeadLabCoordinator(String userID, String name, String email,\n String password, String department) {\n super(userID, name, email, password, \"COORDINATOR\", \"COORD-001\", \"ACTIVE\", department);\n }\n\n @Override\n public double getFeeRate() { return HOURLY_FEE; }\n\n // Req2 - only coordinator can create manager accounts\n public LabManager generateManagerAccount(String managerID, String name,\n String email, String tempPassword, String department) {\n return new LabManager(managerID, name, email, tempPassword, managerID, department);\n }\n}\n"
},
{
"path": "D2/src/model/LabLocation.java",
"content": "package model;\n\npublic class LabLocation {\n private String buildingName;\n private String roomNumber;\n\n public LabLocation() {}\n\n public LabLocation(String buildingName, String roomNumber) {\n this.buildingName = buildingName;\n this.roomNumber = roomNumber;\n }\n\n public String getLocationDetails() {\n return buildingName + \" - Room \" + roomNumber;\n }\n\n public String getBuildingName() { return buildingName; }\n public void setBuildingName(String buildingName) { this.buildingName = buildingName; }\n\n public String getRoomNumber() { return roomNumber; }\n public void setRoomNumber(String roomNumber) { this.roomNumber = roomNumber; }\n\n @Override\n public String toString() {\n return buildingName + \",\" + roomNumber;\n }\n}\n"
},
{
"path": "D2/src/model/LabManager.java",
"content": "package model;\n\npublic class LabManager extends User {\n private static final double HOURLY_FEE = 0.0;\n private String managerID;\n\n public LabManager() {}\n\n public LabManager(String userID, String name, String email, String password,\n String managerID, String department) {\n super(userID, name, email, password, \"MANAGER\", managerID, \"ACTIVE\", department);\n this.managerID = managerID;\n }\n\n @Override\n public double getFeeRate() { return HOURLY_FEE; }\n\n public String getManagerID() { return managerID; }\n public void setManagerID(String managerID) { this.managerID = managerID; }\n}\n"
},
{
"path": "D2/src/model/PaymentTransaction.java",
"content": "package model;\n\npublic class PaymentTransaction {\n private String transactionID;\n private String bookingID;\n private double totalAmount;\n private String paymentStatus; // SUCCESS, DECLINED\n private String paymentMethod;\n\n public PaymentTransaction() {}\n\n public PaymentTransaction(String transactionID, String bookingID,\n double totalAmount, String paymentMethod) {\n this.transactionID = transactionID;\n this.bookingID = bookingID;\n this.totalAmount = totalAmount;\n this.paymentMethod = paymentMethod;\n this.paymentStatus = \"SUCCESS\";\n }\n\n // Getters and Setters\n public String getTransactionID() { return transactionID; }\n public void setTransactionID(String transactionID) { this.transactionID = transactionID; }\n\n public String getBookingID() { return bookingID; }\n public void setBookingID(String bookingID) { this.bookingID = bookingID; }\n\n public double getTotalAmount() { return totalAmount; }\n public void setTotalAmount(double totalAmount) { this.totalAmount = totalAmount; }\n\n public String getPaymentStatus() { return paymentStatus; }\n public void setPaymentStatus(String paymentStatus) { this.paymentStatus = paymentStatus; }\n\n public String getPaymentMethod() { return paymentMethod; }\n public void setPaymentMethod(String paymentMethod) { this.paymentMethod = paymentMethod; }\n}\n"
},
{
"path": "D2/src/model/Researcher.java",
"content": "package model;\n\npublic class Researcher extends User {\n private static final double HOURLY_FEE = 20.0;\n\n public Researcher() {}\n\n public Researcher(String userID, String name, String email, String password,\n String staffID, String status, String department) {\n super(userID, name, email, password, \"RESEARCHER\", staffID, status, department);\n }\n\n @Override\n public double getFeeRate() {\n return HOURLY_FEE;\n }\n}\n"
},
{
"path": "D2/src/model/Reservation.java",
"content": "package model;\n\npublic class Reservation {\n private String bookingID;\n private String userID;\n private String equipmentID;\n private String startTime; // stored as string \"yyyy-MM-dd HH:mm\"\n private String endTime;\n private boolean isExtended;\n private String status; // CONFIRMED, CANCELLED, FORFEITED\n private double depositAmount;\n private boolean depositForfeited;\n private String paymentMethod; // CREDIT, DEBIT, INSTITUTIONAL, GRANT\n\n public Reservation() {}\n\n public Reservation(String bookingID, String userID, String equipmentID,\n String startTime, String endTime, String paymentMethod, double depositAmount) {\n this.bookingID = bookingID;\n this.userID = userID;\n this.equipmentID = equipmentID;\n this.startTime = startTime;\n this.endTime = endTime;\n this.isExtended = false;\n this.status = \"CONFIRMED\";\n this.depositAmount = depositAmount;\n this.depositForfeited = false;\n this.paymentMethod = paymentMethod;\n }\n\n public void cancel() { this.status = \"CANCELLED\"; }\n public void forfeitDeposit() { this.depositForfeited = true; this.status = \"FORFEITED\"; }\n public void extend(String newEndTime) { this.endTime = newEndTime; this.isExtended = true; }\n\n // Getters and Setters\n public String getBookingID() { return bookingID; }\n public void setBookingID(String bookingID) { this.bookingID = bookingID; }\n\n public String getUserID() { return userID; }\n public void setUserID(String userID) { this.userID = userID; }\n\n public String getEquipmentID() { return equipmentID; }\n public void setEquipmentID(String equipmentID) { this.equipmentID = equipmentID; }\n\n public String getStartTime() { return startTime; }\n public void setStartTime(String startTime) { this.startTime = startTime; }\n\n public String getEndTime() { return endTime; }\n public void setEndTime(String endTime) { this.endTime = endTime; }\n\n public boolean isExtended() { return isExtended; }\n public void setExtended(boolean extended) { isExtended = extended; }\n\n public String getStatus() { return status; }\n public void setStatus(String status) { this.status = status; }\n\n public double getDepositAmount() { return depositAmount; }\n public void setDepositAmount(double depositAmount) { this.depositAmount = depositAmount; }\n\n public boolean isDepositForfeited() { return depositForfeited; }\n public void setDepositForfeited(boolean depositForfeited) { this.depositForfeited = depositForfeited; }\n\n public String getPaymentMethod() { return paymentMethod; }\n public void setPaymentMethod(String paymentMethod) { this.paymentMethod = paymentMethod; }\n\n @Override\n public String toString() {\n return \"Booking [\" + bookingID + \"] \" + equipmentID + \" | \" + startTime + \" to \" + endTime + \" | \" + status;\n }\n}\n"
},
{
"path": "D2/src/model/Student.java",
"content": "package model;\n\npublic class Student extends User {\n private static final double HOURLY_FEE = 10.0;\n\n public Student() {}\n\n public Student(String userID, String name, String email, String password,\n String staffID, String status, String department) {\n super(userID, name, email, password, \"STUDENT\", staffID, status, department);\n }\n\n @Override\n public double getFeeRate() {\n return HOURLY_FEE;\n }\n}\n"
},
{
"path": "D2/src/model/User.java",
"content": "package model;\n\npublic abstract class User {\n protected String userID;\n protected String name;\n protected String email;\n protected String password;\n protected String userType; // STUDENT, FACULTY, RESEARCHER, GUEST\n protected String staffID; // student/staff ID or certification number (Req8)\n protected String status; // ACTIVE, PENDING\n protected String department;\n\n public User() {}\n\n public User(String userID, String name, String email, String password,\n String userType, String staffID, String status, String department) {\n this.userID = userID;\n this.name = name;\n this.email = email;\n this.password = password;\n this.userType = userType;\n this.staffID = staffID;\n this.status = status;\n this.department = department;\n }\n\n // Abstract method - each subclass returns its own hourly fee (Req3, Req4)\n public abstract double getFeeRate();\n\n // Getters and Setters\n public String getUserID() { return userID; }\n public void setUserID(String userID) { this.userID = userID; }\n\n public String getName() { return name; }\n public void setName(String name) { this.name = name; }\n\n public String getEmail() { return email; }\n public void setEmail(String email) { this.email = email; }\n\n public String getPassword() { return password; }\n public void setPassword(String password) { this.password = password; }\n\n public String getUserType() { return userType; }\n public void setUserType(String userType) { this.userType = userType; }\n\n public String getStaffID() { return staffID; }\n public void setStaffID(String staffID) { this.staffID = staffID; }\n\n public String getStatus() { return status; }\n public void setStatus(String status) { this.status = status; }\n\n public String getDepartment() { return department; }\n public void setDepartment(String department) { this.department = department; }\n\n @Override\n public String toString() {\n return \"User [\" + userID + \", \" + name + \", \" + email + \", \" + userType + \", \" + status + \"]\";\n }\n}\n"
},
{
"path": "D2/src/pattern/command/.gitkeep",
"content": ""
},
{
"path": "D2/src/pattern/command/CancelCommand.java",
"content": "package pattern.command;\n\nimport model.Reservation;\n\npublic class CancelCommand implements Command {\n\n private ReservationService reservationService;\n private Reservation reservation;\n\n public CancelCommand(ReservationService reservationService, Reservation reservation) {\n this.reservationService = reservationService;\n this.reservation = reservation;\n }\n\n @Override\n public void execute() {\n reservationService.cancel(reservation);\n }\n}"
},
{
"path": "D2/src/pattern/command/Command.java",
"content": "package pattern.command;\n\npublic interface Command {\n void execute();\n}"
},
{
"path": "D2/src/pattern/command/ExtendCommand.java",
"content": "package pattern.command;\n\nimport model.Reservation;\n\npublic class ExtendCommand implements Command {\n\n private ReservationService reservationService;\n private Reservation reservation;\n private String newEndTime;\n\n public ExtendCommand(ReservationService reservationService, Reservation reservation, String newEndTime) {\n this.reservationService = reservationService;\n this.reservation = reservation;\n this.newEndTime = newEndTime;\n }\n\n @Override\n public void execute() {\n reservationService.extend(reservation, newEndTime);\n }\n}"
},
{
"path": "D2/src/pattern/command/ForfeitDepositCommand.java",
"content": "package pattern.command;\n\nimport model.Reservation;\n\npublic class ForfeitDepositCommand implements Command {\n\n private ReservationService reservationService;\n private Reservation reservation;\n\n public ForfeitDepositCommand(ReservationService reservationService, Reservation reservation) {\n this.reservationService = reservationService;\n this.reservation = reservation;\n }\n\n @Override\n public void execute() {\n reservationService.forfeitDeposit(reservation);\n }\n}"
},
{
"path": "D2/src/pattern/command/ModifyCommand.java",
"content": "package pattern.command;\n\nimport model.Reservation;\n\npublic class ModifyCommand implements Command {\n\n private ReservationService reservationService;\n private Reservation reservation;\n private String newStartTime;\n private String newEndTime;\n\n public ModifyCommand(ReservationService reservationService, Reservation reservation, String newStartTime, String newEndTime) {\n this.reservationService = reservationService;\n this.reservation = reservation;\n this.newStartTime = newStartTime;\n this.newEndTime = newEndTime;\n }\n\n @Override\n public void execute() {\n reservationService.modify(reservation, newStartTime, newEndTime);\n }\n}"
},
{
"path": "D2/src/pattern/command/ReservationService.java",
"content": "package pattern.command;\n\nimport model.Reservation;\n\npublic class ReservationService {\n\n public void reserve(Reservation reservation) {\n reservation.setStatus(\"CONFIRMED\");\n System.out.println(\"Reservation \" + reservation.getBookingID() + \" created for equipment \" + reservation.getEquipmentID());\n }\n\n public void cancel(Reservation reservation) {\n reservation.cancel();\n System.out.println(\"Reservation \" + reservation.getBookingID() + \" cancelled.\");\n }\n\n public void modify(Reservation reservation, String newStartTime, String newEndTime) {\n reservation.setStartTime(newStartTime);\n reservation.setEndTime(newEndTime);\n System.out.println(\"Reservation \" + reservation.getBookingID() + \" modified.\");\n }\n\n public void extend(Reservation reservation, String newEndTime) {\n reservation.extend(newEndTime);\n System.out.println(\"Reservation \" + reservation.getBookingID() + \" extended to \" + newEndTime);\n }\n\n public void forfeitDeposit(Reservation reservation) {\n reservation.forfeitDeposit();\n System.out.println(\"Deposit forfeited for reservation \" + reservation.getBookingID());\n }\n}"
},
{
"path": "D2/src/pattern/command/ReserveCommand.java",
"content": "package pattern.command;\n\nimport model.Reservation;\n\npublic class ReserveCommand implements Command {\n\n private ReservationService reservationService;\n private Reservation reservation;\n\n public ReserveCommand(ReservationService reservationService, Reservation reservation) {\n this.reservationService = reservationService;\n this.reservation = reservation;\n }\n\n @Override\n public void execute() {\n reservationService.reserve(reservation);\n }\n}"
},
{
"path": "D2/src/pattern/factory/.gitkeep",
"content": ""
},
{
"path": "D2/src/pattern/factory/UserFactory.java",
"content": "package pattern.factory;\nimport model.User;\nimport model.Student; \nimport model.Faculty;\nimport model.Guest;\nimport model.Researcher;\nimport model.HeadLabCoordinator;\nimport model.LabManager;;\n\npublic class UserFactory {\n\n public UserFactory () {}\n\n public User getUserType(String userType) {\n if (userType.equals(\"STUDENT\")) {\n return new Student();\n }\n else if (userType.equals(\"GUEST\")) {\n return new Guest(); \n }\n\n else if (userType.equals(\"RESEARCHER\")) {\n return new Researcher();\n }\n\n else if (userType.equals(\"FACULTY\")) {\n return new Faculty();\n }\n\n else if (userType.equals(\"COORDINATOR\")) {\n return new HeadLabCoordinator();\n }\n\n else if (userType.equals(\"MANAGER\")) {\n return new LabManager();\n }\n else {\n return null;\n }\n }\n}\n"
},
{
"path": "D2/src/pattern/observer/.gitkeep",
"content": ""
},
{
"path": "D2/src/pattern/observer/EquipmentObserver.java",
"content": "package pattern.observer;\n\n/**\n * Observer Pattern - Observer Interface\n * Any class that wants to be notified of equipment status changes implements this.\n */\npublic interface EquipmentObserver {\n void update(String equipmentID, String newStatus);\n}\n"
},
{
"path": "D2/src/pattern/observer/EquipmentSubject.java",
"content": "package pattern.observer;\n\n/**\n * Observer Pattern - Subject Interface\n * EquipmentContext implements this to support registering/notifying observers.\n */\npublic interface EquipmentSubject {\n void registerObserver(EquipmentObserver observer);\n void removeObserver(EquipmentObserver observer);\n void notifyObservers(String equipmentID, String newStatus);\n}\n"
},
{
"path": "D2/src/pattern/observer/Observer.java",
"content": ""
},
{
"path": "D2/src/pattern/observer/UserNotificationObserver.java",
"content": "package pattern.observer;\n\nimport model.User;\nimport java.util.List;\n\n/**\n * Observer Pattern - Concrete Observer\n * Notifies affected users when equipment status changes (Req5, Req6).\n * For example: if equipment is DISABLED or set to MAINTENANCE,\n * users with active bookings on that equipment get notified.\n */\npublic class UserNotificationObserver implements EquipmentObserver {\n\n private List affectedUsers;\n private String notificationLog = \"\";\n\n public UserNotificationObserver(List affectedUsers) {\n this.affectedUsers = affectedUsers;\n }\n\n @Override\n public void update(String equipmentID, String newStatus) {\n if (newStatus.equals(\"DISABLED\") || newStatus.equals(\"MAINTENANCE\")) {\n for (User user : affectedUsers) {\n String message = \"[NOTIFICATION] Dear \" + user.getName() +\n \", equipment \" + equipmentID +\n \" has been marked as \" + newStatus +\n \". Your booking may be affected.\";\n System.out.println(message);\n notificationLog += message + \"\\n\";\n }\n }\n }\n\n public String getNotificationLog() {\n return notificationLog;\n }\n\n public void setAffectedUsers(List affectedUsers) {\n this.affectedUsers = affectedUsers;\n }\n}\n"
},
{
"path": "D2/src/pattern/singleton/.gitkeep",
"content": ""
},
{
"path": "D2/src/pattern/singleton/BookingSystem.java",
"content": "package pattern.singleton;\nimport model.Reservation;\nimport java.util.ArrayList;\nimport java.time.LocalDateTime;\nimport java.util.List;\n\npublic class BookingSystem {\n\n // creating the single BookingSystem instance\n private static BookingSystem bsInstance = new BookingSystem();\n public static BookingSystem getInstance() { return bsInstance; }\n\n private List reservations;\n\n // Setting the constructor private so nobody outside the class can call it\n private BookingSystem() {\n bsInstance.reservations = new ArrayList();\n }\n\n public List getReservations() { return bsInstance.reservations; }\n\n public void addBooking(Reservation booking) {\n bsInstance.getReservations().add(booking);\n }\n\n public boolean checkActiveBookings(String equipmentID) {\n Reservation booking;\n for (int i = 0; i < bsInstance.reservations.size(); i++) {\n booking = reservations.get(i);\n if (booking.getEquipmentID().equals(equipmentID)) {\n System.out.println(booking.toString());\n return true;\n }\n }\n System.out.println(\"No reservation with that equipment ID.\\n\");\n return false;\n }\n\n public void cancelFutureBookings(String id) {\n Reservation booking;\n for (int i = 0; i < bsInstance.reservations.size(); i++) {\n booking = reservations.get(i);\n LocalDateTime start = LocalDateTime.parse(booking.getStartTime());\n if (booking.getEquipmentID().equals(id) && LocalDateTime.now().isBefore(start)) {\n\n if (booking.getStatus().equals(\"CANCELLED\")) { reservations.remove(i); }\n return;\n }\n }\n }\n\n}\n"
},
{
"path": "D2/src/pattern/singleton/HeadLabCoordinatorSingleton.java",
"content": "package pattern.singleton;\n\nimport model.LabManager;\n\n/**\n * Singleton Pattern - HeadLabCoordinator\n * Only one Head Lab Coordinator exists in the system (Req2).\n * Only this instance can generate manager accounts.\n */\npublic class HeadLabCoordinatorSingleton {\n\n private static HeadLabCoordinatorSingleton instance;\n\n private String coordinatorID;\n private String name;\n private String email;\n private String department;\n\n // Private constructor - nobody can instantiate this directly\n private HeadLabCoordinatorSingleton() {\n this.coordinatorID = \"C001\";\n this.name = \"Coordinator Carol\";\n this.email = \"coord@yorku.ca\";\n this.department = \"Administration\";\n }\n\n // Only way to get the coordinator instance\n public static HeadLabCoordinatorSingleton getInstance() {\n if (instance == null) {\n instance = new HeadLabCoordinatorSingleton();\n }\n return instance;\n }\n\n /**\n * Req2 - Auto-generate a lab manager account.\n * Only the Head Lab Coordinator can do this.\n */\n public LabManager generateManagerAccount(String managerID, String name,\n String email, String tempPassword,\n String department) {\n System.out.println(\"[COORDINATOR] Generating manager account for: \" + name);\n return new LabManager(managerID, name, email, tempPassword, managerID, department);\n }\n\n // Getters\n public String getCoordinatorID() { return coordinatorID; }\n public String getName() { return name; }\n public String getEmail() { return email; }\n public String getDepartment() { return department; }\n\n @Override\n public String toString() {\n return \"HeadLabCoordinator [\" + coordinatorID + \"] \" + name;\n }\n}\n"
},
{
"path": "D2/src/pattern/state/.gitkeep",
"content": ""
},
{
"path": "D2/src/pattern/state/AvailableState.java",
"content": "package pattern.state;\n\npublic class AvailableState implements EquipmentState {\n\n @Override\n public void enable(EquipmentContext context) {\n System.out.println(\"Equipment is already enabled and available.\");\n }\n\n @Override\n public void disable(EquipmentContext context) {\n context.setState(new DisabledState());\n System.out.println(\"Equipment has been disabled.\");\n }\n\n @Override\n public void markUnderMaintenance(EquipmentContext context) {\n context.setState(new MaintenanceState());\n System.out.println(\"Equipment is now under maintenance.\");\n }\n\n @Override\n public String getStatus() {\n return \"AVAILABLE\";\n }\n}"
},
{
"path": "D2/src/pattern/state/DisabledState.java",
"content": "package pattern.state;\n\npublic class DisabledState implements EquipmentState {\n\n @Override\n public void enable(EquipmentContext context) {\n context.setState(new AvailableState());\n System.out.println(\"Equipment has been enabled and is now available.\");\n }\n\n @Override\n public void disable(EquipmentContext context) {\n System.out.println(\"Equipment is already disabled.\");\n }\n\n @Override\n public void markUnderMaintenance(EquipmentContext context) {\n context.setState(new MaintenanceState());\n System.out.println(\"Equipment moved from disabled to maintenance.\");\n }\n\n @Override\n public String getStatus() {\n return \"DISABLED\";\n }\n}"
},
{
"path": "D2/src/pattern/state/EquipmentContext.java",
"content": "package pattern.state;\n\nimport pattern.observer.EquipmentObserver;\nimport pattern.observer.EquipmentSubject;\nimport java.util.ArrayList;\nimport java.util.List;\n\n/**\n * State Pattern - Context class\n * Holds the current state of a piece of equipment.\n * Also implements EquipmentSubject (Observer Pattern) to notify\n * observers when the equipment status changes (Req5, Req6).\n */\npublic class EquipmentContext implements EquipmentSubject {\n\n private EquipmentState currentState;\n private String equipmentID;\n\n // Observer pattern - list of observers watching this equipment\n private List observers = new ArrayList<>();\n\n public EquipmentContext(String equipmentID, String initialStatus) {\n this.equipmentID = equipmentID;\n this.currentState = getStateFromString(initialStatus);\n }\n\n // --- State Pattern methods ---\n\n public void enable() {\n currentState.enable(this);\n }\n\n public void disable() {\n currentState.disable(this);\n }\n\n public void markUnderMaintenance() {\n currentState.markUnderMaintenance(this);\n }\n\n public void setState(EquipmentState newState) {\n this.currentState = newState;\n notifyObservers(equipmentID, getStatusString());\n }\n\n public EquipmentState getCurrentState() {\n return currentState;\n }\n\n public String getStatusString() {\n if (currentState instanceof AvailableState) return \"AVAILABLE\";\n if (currentState instanceof DisabledState) return \"DISABLED\";\n if (currentState instanceof MaintenanceState) return \"MAINTENANCE\";\n return \"UNKNOWN\";\n }\n\n public String getEquipmentID() {\n return equipmentID;\n }\n\n // --- Observer Pattern methods ---\n\n @Override\n public void registerObserver(EquipmentObserver observer) {\n observers.add(observer);\n }\n\n @Override\n public void removeObserver(EquipmentObserver observer) {\n observers.remove(observer);\n }\n\n @Override\n public void notifyObservers(String equipmentID, String newStatus) {\n for (EquipmentObserver observer : observers) {\n observer.update(equipmentID, newStatus);\n }\n }\n\n // Helper to convert string to State object\n private EquipmentState getStateFromString(String status) {\n switch (status.toUpperCase()) {\n case \"AVAILABLE\": return new AvailableState();\n case \"DISABLED\": return new DisabledState();\n case \"MAINTENANCE\": return new MaintenanceState();\n default: return new AvailableState();\n }\n }\n}"
},
{
"path": "D2/src/pattern/state/EquipmentState.java",
"content": "package pattern.state;\n\npublic interface EquipmentState {\n void enable(EquipmentContext context);\n void disable(EquipmentContext context);\n void markUnderMaintenance(EquipmentContext context);\n String getStatus();\n}"
},
{
"path": "D2/src/pattern/state/MaintenanceState.java",
"content": "package pattern.state;\n\npublic class MaintenanceState implements EquipmentState {\n\n @Override\n public void enable(EquipmentContext context) {\n context.setState(new AvailableState());\n System.out.println(\"Maintenance completed. Equipment is now available.\");\n }\n\n @Override\n public void disable(EquipmentContext context) {\n context.setState(new DisabledState());\n System.out.println(\"Equipment has been disabled from maintenance state.\");\n }\n\n @Override\n public void markUnderMaintenance(EquipmentContext context) {\n System.out.println(\"Equipment is already under maintenance.\");\n }\n\n @Override\n public String getStatus() {\n return \"MAINTENANCE\";\n }\n}"
},
{
"path": "D2/src/pattern/strategy/.gitkeep",
"content": ""
},
{
"path": "D2/src/pattern/strategy/CreditCardPayment.java",
"content": "package pattern.strategy;\n\nimport model.PaymentTransaction;\n\npublic class CreditCardPayment implements PaymentStrategy {\n\n @Override\n public boolean pay(PaymentTransaction transaction) {\n System.out.println(\"Processing credit card payment of $\" + transaction.getTotalAmount());\n transaction.setPaymentStatus(\"SUCCESS\");\n return true;\n }\n}"
},
{
"path": "D2/src/pattern/strategy/DebitPayment.java",
"content": "package pattern.strategy;\n\nimport model.PaymentTransaction;\n\npublic class DebitPayment implements PaymentStrategy {\n\n @Override\n public boolean pay(PaymentTransaction transaction) {\n System.out.println(\"Processing debit payment of $\" + transaction.getTotalAmount());\n transaction.setPaymentStatus(\"SUCCESS\");\n return true;\n }\n} "
},
{
"path": "D2/src/pattern/strategy/GrantPayment.java",
"content": "package pattern.strategy;\n\nimport model.PaymentTransaction;\n\npublic class GrantPayment implements PaymentStrategy {\n\n @Override\n public boolean pay(PaymentTransaction transaction) {\n System.out.println(\"Processing grant payment for booking \" + transaction.getBookingID());\n transaction.setPaymentStatus(\"SUCCESS\");\n return true;\n }\n}"
},
{
"path": "D2/src/pattern/strategy/InstitutionalPayment.java",
"content": "package pattern.strategy;\n\nimport model.PaymentTransaction;\n\npublic class InstitutionalPayment implements PaymentStrategy {\n\n @Override\n public boolean pay(PaymentTransaction transaction) {\n System.out.println(\"Processing institutional payment for booking \" + transaction.getBookingID());\n transaction.setPaymentStatus(\"SUCCESS\");\n return true;\n }\n}"
},
{
"path": "D2/src/pattern/strategy/PaymentProcessor.java",
"content": "package pattern.strategy;\n\nimport model.PaymentTransaction;\n\npublic class PaymentProcessor {\n private PaymentStrategy paymentStrategy;\n\n public PaymentProcessor(PaymentStrategy paymentStrategy) {\n this.paymentStrategy = paymentStrategy;\n }\n\n public void setPaymentStrategy(PaymentStrategy paymentStrategy) {\n this.paymentStrategy = paymentStrategy;\n }\n\n public boolean processPayment(PaymentTransaction transaction) {\n if (paymentStrategy == null) {\n transaction.setPaymentStatus(\"DECLINED\");\n return false;\n }\n return paymentStrategy.pay(transaction);\n }\n}"
},
{
"path": "D2/src/pattern/strategy/PaymentStrategy.java",
"content": "package pattern.strategy;\n\nimport model.PaymentTransaction;\n\npublic interface PaymentStrategy {\n boolean pay(PaymentTransaction transaction);\n}"
}
]