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src/main/java/com/example/hangry/User.java

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+package com.example.hangry;
+
+import jakarta.persistence.*;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class User {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(unique = true, nullable = false)
+    private String username;
+
+    @Column(nullable = false)
+    private String password;  // Hier solltest du sicherstellen, dass das Passwort verschlüsselt wird
+
+    @Column(unique = true, nullable = false)
+    private String email;
+
+    private String role; // Für Rollen wie "ADMIN", "USER", etc.
+
+    // Many-to-Many Beziehung zu Ingredients
+    @ManyToMany
+    @JoinTable(
+            name = "user_ingredients",
+            joinColumns = @JoinColumn(name = "user_id"),
+            inverseJoinColumns = @JoinColumn(name = "ingredient_id")
+    )
+    private List<Ingredient> ingredients = new ArrayList<>();
+
+    // No-Args-Konstruktor (wichtig für JPA)
+    public User() {
+    }
+
+    // All-Args-Konstruktor
+    public User(Long id, String username, String password, String email, String role) {
+        this.id = id;
+        this.username = username;
+        this.password = password;
+        this.email = email;
+        this.role = role;
+    }
+
+    // Getter und Setter
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public String getRole() {
+        return role;
+    }
+
+    public void setRole(String role) {
+        this.role = role;
+    }
+
+    public List<Ingredient> getIngredients() {
+        return ingredients;
+    }
+
+    public void setIngredients(List<Ingredient> ingredients) {
+        this.ingredients = ingredients;
+    }
+
+    // Methode, um eine Zutat zu einem User hinzuzufügen
+    public void addIngredient(Ingredient ingredient) {
+        this.ingredients.add(ingredient);
+    }
+
+    // Methode, um eine Zutat aus der Liste zu entfernen
+    public void removeIngredient(Ingredient ingredient) {
+        this.ingredients.remove(ingredient);
+    }
+}