package com.mogo.utils;

import android.util.Log;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;


@SuppressWarnings("rawtypes")
public class ReflectUtils {

    public static Object getField( Class clazz, Object target, String name) throws Exception {
        Field field = clazz.getDeclaredField(name);
        field.setAccessible(true);
        return field.get(target);
    }

    public static void setField( Class clazz, Object target, String name, Object value) throws Exception {
        Field field = clazz.getDeclaredField(name);
        field.setAccessible(true);
        field.set(target, value);
    }

    public static void setFieldNoException( Class clazz, Object target, String name, Object value) {
        try {
            ReflectUtils.setField(clazz, target, name, value);
        } catch ( Exception e) {
            Log.e("ReflectUtil",e.getMessage(),e);
        }
    }

    @SuppressWarnings("unchecked")
    public static Object invoke( Class clazz, Object target, String name, Object... args)
            throws Exception {
        Class[] parameterTypes = null;
        if (args != null) {
            parameterTypes = new Class[args.length];
            for (int i = 0; i < args.length; i++) {
                parameterTypes[i] = args[i].getClass();
            }
        }

        Method method = clazz.getDeclaredMethod(name, parameterTypes);
        method.setAccessible(true);
        return method.invoke(target, args);
    }

    @SuppressWarnings("unchecked")
    public static Object invoke( Class clazz, Object target, String name, Class[] parameterTypes, Object... args)
            throws Exception {
        Method method = clazz.getDeclaredMethod(name, parameterTypes);
        method.setAccessible(true);
        return method.invoke(target, args);
    }

    @SuppressWarnings("unchecked")
    public static <T> T invokeConstructor( Class<T> clazz, Class[] parameterTypes, Object... args)
            throws Exception {
        Constructor constructor = clazz.getDeclaredConstructor(parameterTypes);
        constructor.setAccessible(true);
        return (T) constructor.newInstance(args);
    }

    @SuppressWarnings("unchecked")
    public static <T> T invokeConstructor( Class<T> clazz)
            throws Exception {
        Constructor constructor = clazz.getDeclaredConstructor();
        constructor.setAccessible(true);
        return (T) constructor.newInstance();
    }

}