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package com.badlogic.gdx.utils.reflect;

import com.github.xpenatan.gdx.backends.teavm.gen.Emulate;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Modifier;

@Emulate(Method.class)
public class MethodEmu {

    private final java.lang.reflect.Method method;

    MethodEmu(java.lang.reflect.Method method) {
        this.method = method;
    }

    /**
     * Returns the name of the method.
     */
    public String getName() {
        return method.getName();
    }

    /**
     * Returns a Class object that represents the formal return type of the method.
     */
    public Class getReturnType() {
        return method.getReturnType();
    }

    /**
     * Returns an array of Class objects that represent the formal parameter types, in declaration order, of the method.
     */
    public Class[] getParameterTypes() {
        return method.getParameterTypes();
    }

    /**
     * Returns the Class object representing the class or interface that declares the method.
     */
    public Class getDeclaringClass() {
        return method.getDeclaringClass();
    }

    public boolean isAccessible() {
        return method.isAccessible();
    }

    public void setAccessible(boolean accessible) {
        method.setAccessible(accessible);
    }

    /**
     * Return true if the method includes the {@code abstract} modifier.
     */
    public boolean isAbstract() {
        return Modifier.isAbstract(method.getModifiers());
    }

    /**
     * Return true if the method does not include any of the {@code private}, {@code protected}, or {@code public} modifiers.
     */
    public boolean isDefaultAccess() {
        return !isPrivate() && !isProtected() && !isPublic();
    }

    /**
     * Return true if the method includes the {@code final} modifier.
     */
    public boolean isFinal() {
        return Modifier.isFinal(method.getModifiers());
    }

    /**
     * Return true if the method includes the {@code private} modifier.
     */
    public boolean isPrivate() {
        return Modifier.isPrivate(method.getModifiers());
    }

    /**
     * Return true if the method includes the {@code protected} modifier.
     */
    public boolean isProtected() {
        return Modifier.isProtected(method.getModifiers());
    }

    /**
     * Return true if the method includes the {@code public} modifier.
     */
    public boolean isPublic() {
        return Modifier.isPublic(method.getModifiers());
    }

    /**
     * Return true if the method includes the {@code native} modifier.
     */
    public boolean isNative() {
        return Modifier.isNative(method.getModifiers());
    }

    /**
     * Return true if the method includes the {@code static} modifier.
     */
    public boolean isStatic() {
        return Modifier.isStatic(method.getModifiers());
    }

    /**
     * Return true if the method takes a variable number of arguments.
     */
    public boolean isVarArgs() {
        return method.isVarArgs();
    }

    /**
     * Invokes the underlying method on the supplied object with the supplied parameters.
     */
    public Object invoke(Object obj, Object... args) throws ReflectionException {
        try {
            return method.invoke(obj, args);
        }
        catch(IllegalArgumentException e) {
            throw new ReflectionException("Illegal argument(s) supplied to method: " + getName(), e);
        }
        catch(IllegalAccessException e) {
            throw new ReflectionException("Illegal access to method: " + getName(), e);
        }
        catch(InvocationTargetException e) {
            throw new ReflectionException("Exception occurred in method: " + getName(), e);
        }
    }

    /**
     * Returns true if the method includes an annotation of the provided class type.
     */
    public boolean isAnnotationPresent(Class annotationType) {
        return method.isAnnotationPresent(annotationType);
    }

    public Annotation[] getDeclaredAnnotations() {
        java.lang.annotation.Annotation[] annotations = method.getDeclaredAnnotations();
        Annotation[] result = new Annotation[annotations.length];
        for(int i = 0; i < annotations.length; i++) {
            result[i] = new Annotation(annotations[i]);
        }
        return result;
    }

    public Annotation getDeclaredAnnotation(Class annotationType) {
        java.lang.annotation.Annotation[] annotations = method.getDeclaredAnnotations();
        if(annotations == null) {
            return null;
        }
        for(java.lang.annotation.Annotation annotation : annotations) {
            if(annotation.annotationType().equals(annotationType)) {
                return new Annotation(annotation);
            }
        }
        return null;
    }
}