diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..ab1f416
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..bf2c501
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,13 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..aa00ffa
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 0000000..4158879
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..eba6e1f
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/database.sql b/database.sql
index 2169346..3a6ce82 100644
--- a/database.sql
+++ b/database.sql
@@ -1,141 +1,85 @@
--- Restaurant Database Management System
---
--- Instructions:
--- 1. Create all required tables.
--- 2. Design appropriate PRIMARY KEY and FOREIGN KEY relationships.
--- 3. Add suitable constraints based on the requirements.
--- 4. Insert initial mock data.
--- 5. Insert at least 3 menu items.
--- 6. The script should be executable from start to finish without errors.
-
-
-
-- =======================================================
-- USER TABLE
-- =======================================================
---
--- Represents customers using the system.
---
--- Required information:
--- - Unique identifier
--- - Username
--- - Password
--- - Email (optional)
---
--- Requirements:
--- - Each user must have a unique identifier.
--- - Usernames must be unique.
--- - Username and password are required.
--- - Passwords should not be stored in plain text.
---
--- CREATE TABLE ...
-
+CREATE TABLE users (
+ id SERIAL PRIMARY KEY,
+ username VARCHAR(50) NOT NULL UNIQUE,
+ password VARCHAR(255) NOT NULL,
+ email VARCHAR(100)
+);
-- =======================================================
-- MENU ITEM TABLE
-- =======================================================
---
--- Represents available food and drink items.
---
--- Required information:
--- - Unique identifier
--- - Name
--- - Description (optional)
--- - Price
--- - Category (optional)
---
--- Requirements:
--- - Each menu item must have a unique identifier.
--- - Name is required.
--- - Price must always be positive.
---
--- CREATE TABLE ...
-
+CREATE TABLE menu_items (
+ id SERIAL PRIMARY KEY,
+ name VARCHAR(100) NOT NULL,
+ description TEXT,
+ price NUMERIC(10,2) NOT NULL CHECK (price > 0),
+ category VARCHAR(50)
+);
-- =======================================================
--- ORDER TABLE
+-- ORDERS TABLE
-- =======================================================
---
--- Represents orders placed by customers.
---
--- Required information:
--- - Unique identifier
--- - Reference to customer
--- - Creation date and time
--- - Total price
---
--- Requirements:
--- - Each order must belong to exactly one user.
--- - A user can have multiple orders.
--- - The relationship between User and Order must be implemented.
---
--- Note:
--- Avoid using reserved SQL keywords as table names.
--- Consider using a name such as "orders" or "customer_orders".
---
--- CREATE TABLE ...
+CREATE TABLE orders (
+ id SERIAL PRIMARY KEY,
+ user_id INT NOT NULL,
+ created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+ total_price NUMERIC(10,2) NOT NULL DEFAULT 0,
+ CONSTRAINT fk_orders_user
+ FOREIGN KEY (user_id)
+ REFERENCES users(id)
+ ON DELETE CASCADE
+);
-- =======================================================
-- ORDER DETAIL TABLE
-- =======================================================
---
--- Represents items inside an order.
---
--- Required information:
--- - Unique identifier
--- - Reference to an order
--- - Reference to a menu item
--- - Quantity
--- - Item price at purchase time
---
--- Requirements:
--- - Each detail record must belong to one order.
--- - Each detail record must reference one menu item.
--- - Quantity must always be greater than zero.
--- - Store the item's price at the moment of purchase.
---
--- CREATE TABLE ...
+CREATE TABLE order_details (
+ id SERIAL PRIMARY KEY,
+ order_id INT NOT NULL,
+ menu_item_id INT NOT NULL,
+ quantity INT NOT NULL CHECK (quantity > 0),
+ price_at_purchase NUMERIC(10,2) NOT NULL,
+ CONSTRAINT fk_order_details_order
+ FOREIGN KEY (order_id)
+ REFERENCES orders(id)
+ ON DELETE CASCADE,
+
+ CONSTRAINT fk_order_details_menu_item
+ FOREIGN KEY (menu_item_id)
+ REFERENCES menu_items(id)
+);
-- =======================================================
-- INITIAL MENU DATA
-- =======================================================
---
--- Insert at least 3 food or drink items.
---
--- Example categories:
--- - Pizza
--- - Burger
--- - Pasta
--- - Drink
---
--- INSERT INTO ...
-
+INSERT INTO menu_items (name, description, price, category) VALUES
+ ('Margherita Pizza', 'Classic cheese pizza', 10.00, 'Pizza'),
+ ('Cheeseburger', 'Beef burger with cheese', 8.50, 'Burger'),
+ ('Spaghetti Bolognese', 'Pasta with meat sauce', 12.00, 'Pasta'),
+ ('Coca Cola', 'Cold soft drink', 2.50, 'Drink');
-- =======================================================
--- OPTIONAL TEST DATA
+-- OPTIONAL TEST USER
-- =======================================================
---
--- You may insert sample users and orders for testing.
--- This section is optional.
---
--- INSERT INTO ...
-
+INSERT INTO users (username, password, email) VALUES
+ ('admin', 'hashed_password_here', 'admin@example.com');
-- =======================================================
-- VERIFICATION QUERIES
-- =======================================================
---
--- Uncomment these queries to verify your database.
---
--- SELECT * FROM ...;
--- SELECT * FROM ...;
--- SELECT * FROM ...;
--- SELECT * FROM ...;
\ No newline at end of file
+
+-- SELECT * FROM users;
+-- SELECT * FROM menu_items;
+-- SELECT * FROM orders;
+-- SELECT * FROM order_details;
\ No newline at end of file
diff --git a/src/main/java/dev/Main.java b/src/main/java/dev/Main.java
index 3a93683..b883f75 100644
--- a/src/main/java/dev/Main.java
+++ b/src/main/java/dev/Main.java
@@ -1,14 +1,47 @@
package dev;
+import dev.dao.MenuItemDao;
+import dev.dao.OrderDao;
+import dev.dao.OrderDetailDao;
+import dev.dao.UserDao;
+import dev.database.DatabaseConnection;
+import dev.service.AuthService;
+import dev.service.MenuService;
+import dev.service.OrderService;
import dev.ui.ConsoleMenu;
-public class Main {
+import java.sql.Connection;
- public static void main(String[] args) {
+public class Main
+{
+ public static void main(String[] args)
+ {
+ try
+ {
+ Connection connection = DatabaseConnection.getConnection();
- ConsoleMenu menu = new ConsoleMenu();
- menu.start();
+ UserDao userDao = new UserDao(connection);
+ MenuItemDao menuItemDao = new MenuItemDao(connection);
+ OrderDao orderDao = new OrderDao(connection);
+ OrderDetailDao orderDetailDao = new OrderDetailDao(connection);
+ AuthService authService = new AuthService(userDao);
+ MenuService menuService = new MenuService(menuItemDao);
+ OrderService orderService = new OrderService(
+ orderDao,
+ orderDetailDao,
+ menuItemDao
+ );
+
+ ConsoleMenu menu = new ConsoleMenu(
+ authService,
+ menuService,
+ orderService
+ );
+
+ menu.start();
+
+ }
+ catch (Exception e) {System.out.println("Application error: " + e.getMessage());}
}
-
}
\ No newline at end of file
diff --git a/src/main/java/dev/dao/MenuItemDao.java b/src/main/java/dev/dao/MenuItemDao.java
index 3bbebe9..04f3e51 100644
--- a/src/main/java/dev/dao/MenuItemDao.java
+++ b/src/main/java/dev/dao/MenuItemDao.java
@@ -2,24 +2,72 @@ package dev.dao;
import dev.model.MenuItem;
+import java.sql.*;
+import java.util.ArrayList;
import java.util.List;
-public class MenuItemDao {
+public class MenuItemDao
+{
+ private final Connection connection;
- public List