🎟️ Ticket Office

A minimalist Java console application for managing events and ticket reservations.

📌 Project

• We want to create a ticket management application for events.

• Our classes will be:

  • Address

    • Street
    • City

  • Venue (inherits from Address):

    • Capacity

  • Ticket:

    • Seat number
    • Client
    • Event
    • Seat type (standard, gold, VIP)

  • Event:

    • Name
    • Venue
    • Date
    • Time
    • Number of seats
    • List of tickets

  • Client:

    • Last name
    • First name
    • Address
    • Age
    • Phone number
    • List of tickets

---

1. Ticket Reservation:

• Clients will be able to book tickets for different events, and each ticket will be linked to a specific event.

2. Event Management:

• For each event, it will be possible to retrieve the list of associated tickets.

3. User Interface (UI):

• We want a user interface allowing CRUD operations (Create, Read, Update, Delete) for each entity.

4. Exception Handling:

• When searching for an element to display or add, if the specified index does not exist, we will throw a custom NotFoundException, which will be handled in our UI.

5. Bonus: Seat Availability Check:

• When booking a ticket for an event, we want to verify if there are still seats available.

---

🧱 Architecture

src/
├── Main.java                        # Entry point: bootstraps app and menu
│
├── domain/                          # Business entities and value objects
│   ├── Address.java
│   ├── Location.java (extends Address)
│   ├── Client.java
│   ├── Event.java
│   ├── Ticket.java
│   └── SeatType.java (enum)
│
├── domain/exception/               # Custom domain exceptions
│   ├── CrudException.java
│   ├── NotFoundException.java
│   └── CapacityFullException.java
│
├── repository/                     # In-memory repositories
│   ├── Repository.java (interface)
│   └── MapRepository.java
│
├── service/                        # Business services
│   └── TicketService.java
│
└── ui/                             # Console interaction logic
    ├── Ihm.java (generic CRUD menu)
    ├── MainMenu.java
    ├── ClientPrompter.java
    └── EventPrompter.java

---

🚀 Running the App

✅ Requirements

• Java 21+
• Maven

▶️ Launch

mvn clean compile exec:java

This will:

• Load demo data (1 client, 1 event, 1 reservation)
• Launch the interactive menu

---

🥪 Features

1. Ticket Reservation

• Supports different seat types: STANDARD, GOLD, VIP
• Prevents overbooking based on event capacity

2. CRUD Operations

• Manage clients and events via a reusable console interface
• Includes validation and exception handling

3. Exception Safety

• Custom exceptions such as NotFoundException and CapacityFullException
• All errors displayed gracefully to the user

4. UI Abstraction

• Generic Ihm<T> handles entity-specific menus
• Prompters (e.g. ClientPrompter) isolate prompting logic

---

📦 Sample Usage (preloaded)

=== TICKETING MENU ===
1 - Manage clients
2 - Manage events
3 - Reserve ticket
0 - Exit

1. Add or update a client (ID, name, address, age, phone)
2. Add an event with name, location, capacity
3. Reserve a ticket → ID check, seat number + type, capacity control
4. Visual confirmation of success or error message

---

🧠 Extending the App

• Add new entities: reuse Ihm<T> and a Prompter
• Swap MapRepository with SQL or file persistence
• Build REST or JavaFX layer on top (UI decoupled from logic)