trabajando en usuarios

src/main/java/com/imprimelibros/erp/users/UserDetailsImpl.java

@@ -0,0 +1,89 @@
+package com.imprimelibros.erp.users;
+
+import com.imprimelibros.erp.users.User;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.authority.SimpleGrantedAuthority;
+import org.springframework.security.core.userdetails.UserDetails;
+
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * Adaptador de la entidad User a Spring Security.
+ */
+public class UserDetailsImpl implements UserDetails {
+
+    private final User user;
+
+    public UserDetailsImpl(User user) {
+        this.user = user;
+    }
+
+    @Override
+    public Collection<? extends GrantedAuthority> getAuthorities() {
+        // Si tu User tiene un Set<Role>:
+        Set<String> roles = user.getRoles().stream()
+                .map(r -> r.getName()) // ejemplo: "ADMIN", "USER"
+                .collect(Collectors.toSet());
+
+        return roles.stream()
+                .map(role -> new SimpleGrantedAuthority("ROLE_" + role))
+                .collect(Collectors.toSet());
+    }
+
+    @Override
+    public String getPassword() {
+        return user.getPassword(); // debe estar encriptado (BCrypt)
+    }
+
+    @Override
+    public String getUsername() {
+        return user.getUserName();
+    }
+
+    public String getFullname() {
+        
+        return user.getFullName(); 
+    }
+
+    // 👇 si en la vista usas principal.role, añade este también
+    public String getRole() {
+        return user.getRoles().stream()
+                .map(r -> r.getName()) // "ADMIN", "USER", ...
+                .findFirst()
+                .orElse("-");
+    }
+
+    /** (Opcional) Todos los roles “limpios” por si quieres listarlos. */
+    public java.util.Set<String> getRoleNames() {
+        return user.getRoles().stream()
+                .map(r -> r.getName())
+                .collect(java.util.stream.Collectors.toCollection(LinkedHashSet::new));
+    }
+
+    @Override
+    public boolean isAccountNonExpired() {
+        return true; // puedes añadir lógica si quieres
+    }
+
+    @Override
+    public boolean isAccountNonLocked() {
+        return true;
+    }
+
+    @Override
+    public boolean isCredentialsNonExpired() {
+        return true; // igual que arriba
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return user.isEnabled();
+    }
+
+    public User getUser() {
+        return user;
+    }
+}