package com.gameready.readycraft.mod;

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.nio.ByteBuffer;

import org.lwjgl.BufferUtils;
import org.lwjgl.opengl.Display;

import static org.lwjgl.opengl.GL11.GL_CLAMP;
import static org.lwjgl.opengl.GL11.GL_NEAREST;
import static org.lwjgl.opengl.GL11.GL_RGBA;
import static org.lwjgl.opengl.GL11.GL_RGBA8;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_2D;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_MAG_FILTER;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_MIN_FILTER;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_WRAP_S;
import static org.lwjgl.opengl.GL11.GL_TEXTURE_WRAP_T;
import static org.lwjgl.opengl.GL11.GL_UNSIGNED_BYTE;
import static org.lwjgl.opengl.GL11.glBindTexture;
import static org.lwjgl.opengl.GL11.glGenTextures;
import static org.lwjgl.opengl.GL11.glTexImage2D;
import static org.lwjgl.opengl.GL11.glTexParameteri;

import com.gameready.readycraft.mod.proxy.CommonProxy;

import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;

@Mod(modid = Reference.MOD_ID, name = Reference.MOD_NAME, version = Reference.VERSION)

public class ReadyCraftMod
{
    @SidedProxy(clientSide = Reference.CLIENT_PROXY, serverSide = Reference.SERVER_PROXY)
    public static CommonProxy proxy;

    @EventHandler
    public void preInit(FMLPreInitializationEvent e)
    {
        String[] ICON_PATHS = {"/assets/readycraft/icons/16.png", "/assets/readycraft/icons/32.png"};

        Display.setTitle("HavanaMC");
        //Display.setIcon();
    }

    @EventHandler
    public void Init(FMLInitializationEvent e)
    {
        proxy.registerRenders();
    }

    @EventHandler
    public void postInit(FMLPostInitializationEvent e)
    {

    }

    public ByteBuffer generateByteBuffer(int[] pixels, int u, int v, int width, int height)
    {
        ByteBuffer buffer = BufferUtils.createByteBuffer((width * height) * 4);

        for (int y = u; y < height; y++)
        {
            for (int x = v; x < width; x++)
            {
                int i = pixels[x + y * width];
                Color c = new Color(i);
                buffer.put((byte) c.getRed());
                buffer.put((byte) c.getGreen());
                buffer.put((byte) c.getBlue());
                buffer.put((byte) c.getAlpha());
            }
        }

        buffer.flip();

        final int id = glGenTextures();
        glBindTexture(GL_TEXTURE_2D, id);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
        return buffer;
    }

    public ByteBuffer load(BufferedImage img, int u, int v, int width, int height)
    {
        return generateByteBuffer(img.getRGB(u, v, width, height, new int[width * height], 0, width), 0, 0, width, height);
    }

    public ByteBuffer load(BufferedImage img)
    {
        int width = img.getWidth();
        int height = img.getHeight();

        return generateByteBuffer(img.getRGB(0, 0, width, height, new int[width * height], 0, width), 0, 0, width, height);
    }
}