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package io.quarkus.security.deployment;

import java.util.Collection;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;

import jakarta.annotation.security.DenyAll;
import jakarta.annotation.security.RolesAllowed;

import org.jboss.jandex.AnnotationInstance;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.jandex.MethodInfo;

import io.quarkus.arc.processor.InterceptorBindingRegistrar;

/**
 * @author Michal Szynkiewicz, [email protected]
 */
public class SecurityTransformerUtils {
    public static final DotName DENY_ALL = DotName.createSimple(DenyAll.class.getName());
    public static final DotName ROLES_ALLOWED = DotName.createSimple(RolesAllowed.class.getName());
    private static final Set SECURITY_ANNOTATIONS = SecurityAnnotationsRegistrar.SECURITY_BINDINGS.stream()
            .map(InterceptorBindingRegistrar.InterceptorBinding::getName).collect(Collectors.toSet());

    public static boolean hasStandardSecurityAnnotation(MethodInfo methodInfo) {
        return hasStandardSecurityAnnotation(methodInfo.annotations());
    }

    public static boolean hasStandardSecurityAnnotation(ClassInfo classInfo) {
        return hasStandardSecurityAnnotation(classInfo.declaredAnnotations());
    }

    static boolean hasStandardSecurityAnnotation(Collection instances) {
        for (AnnotationInstance instance : instances) {
            if (SECURITY_ANNOTATIONS.contains(instance.name())) {
                return true;
            }
        }
        return false;
    }

    public static Optional findFirstStandardSecurityAnnotation(MethodInfo methodInfo) {
        return findFirstStandardSecurityAnnotation(methodInfo.annotations());
    }

    public static Optional findFirstStandardSecurityAnnotation(ClassInfo classInfo) {
        return findFirstStandardSecurityAnnotation(classInfo.declaredAnnotations());
    }

    static Optional findFirstStandardSecurityAnnotation(Collection instances) {
        for (AnnotationInstance instance : instances) {
            if (SECURITY_ANNOTATIONS.contains(instance.name())) {
                return Optional.of(instance);
            }
        }
        return Optional.empty();
    }

}