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package com.badlogic.gdx.utils.reflect;

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

/**
 * Provides information about, and access to, a single constructor for a Class.
 *
 * @author nexsoftware
 */
@Emulate(Constructor.class)
public final class ConstructorEmu {

    private final java.lang.reflect.Constructor constructor;

    ConstructorEmu(java.lang.reflect.Constructor constructor) {
        this.constructor = constructor;
    }

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

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

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

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

    /**
     * Uses the constructor to create and initialize a new instance of the constructor's declaring class, with the supplied
     * initialization parameters.
     */
    public Object newInstance(Object... args) throws ReflectionException {
        if(args == null) {
            args = new Object[0];
        }
        try {
            return constructor.newInstance(args);
        }
        catch(IllegalArgumentException e) {
            throw new ReflectionException("Illegal argument(s) supplied to constructor for class: " + getDeclaringClass().getName(),
                    e);
        }
        catch(InstantiationException e) {
            throw new ReflectionException("Could not instantiate instance of class: " + getDeclaringClass().getName(), e);
        }
        catch(IllegalAccessException e) {
            throw new ReflectionException("Could not instantiate instance of class: " + getDeclaringClass().getName(), e);
        }
        catch(InvocationTargetException e) {
            throw new ReflectionException("Exception occurred in constructor for class: " + getDeclaringClass().getName(), e);
        }
    }
}