package me.adeptr.client.gui;

import java.awt.Color;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.Gui;
import net.minecraft.client.gui.ScaledResolution;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.texture.TextureManager;
import net.minecraft.client.shader.Framebuffer;
import net.minecraft.util.ResourceLocation;

public class SplashProgress {

	private static final int MAX = 7;
	private static int PROGRESS = 0;
	private static String CURRENT = "";
	private static ResourceLocation splash;
	private static UnicodeFontRenderer ufr;

	public static void update() {
		if(Minecraft.getMinecraft() == null || Minecraft.getMinecraft().getLanguageManager() == null) {
			return;
		}
		drawSplash(Minecraft.getMinecraft().getTextureManager());
	}

	public static void setProgress(int givenProgress, String givenText) {
		PROGRESS = givenProgress;
		CURRENT = givenText;
		update();
	}

	public static void drawSplash(TextureManager tm) {

		ScaledResolution scaledResolution = new ScaledResolution(Minecraft.getMinecraft());
		int scaleFactor = scaledResolution.getScaleFactor();

		Framebuffer framebuffer = new Framebuffer(scaledResolution.getScaledWidth() * scaleFactor, scaledResolution.getScaledHeight() * scaleFactor, true);
		framebuffer.bindFramebuffer(false);

		GlStateManager.matrixMode(GL11.GL_PROJECTION);
		GlStateManager.loadIdentity();
		GlStateManager.ortho(0.0D, (double)scaledResolution.getScaledWidth(), (double)scaledResolution.getScaledHeight(), 0.0D, 1000.0D, 3000.0D);
		GlStateManager.matrixMode(GL11.GL_MODELVIEW);
		GlStateManager.loadIdentity();
		GlStateManager.translate(0.0F, 0.0F, -2000.0F);
		GlStateManager.disableLighting();
		GlStateManager.disableFog();
		GlStateManager.disableDepth();
		GlStateManager.enableTexture2D();

		if(splash == null) {
			splash = new ResourceLocation("Arcenia/splash.png");
		}

		tm.bindTexture(splash);

		GlStateManager.resetColor();
		GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);

		Gui.drawScaledCustomSizeModalRect(0, 0, 0, 0, 1920, 1000, scaledResolution.getScaledWidth(), scaledResolution.getScaledHeight(), 1920, 1000);
		drawProgress();
		framebuffer.unbindFramebuffer();
		framebuffer.framebufferRender(scaledResolution.getScaledWidth() * scaleFactor, scaledResolution.getScaledHeight() * scaleFactor);

		GlStateManager.enableAlpha();
		GlStateManager.alphaFunc(516, 0.1F);

		Minecraft.getMinecraft().updateDisplay();

	}

	private static void drawProgress() {

		if(Minecraft.getMinecraft().gameSettings == null || Minecraft.getMinecraft().getTextureManager() == null) {
			return;
	}

	if(ufr == null) {
		ufr = UnicodeFontRenderer.getFontOnPC("Arial", 20);
	}

	ScaledResolution sr = new ScaledResolution(Minecraft.getMinecraft());

	double nProgress = (double)PROGRESS;
	double calc = (nProgress / MAX * sr.getScaledWidth());

	Gui.drawRect(0, sr.getScaledHeight() - 35, sr.getScaledWidth(), sr.getScaledHeight(), new Color(0, 0, 0, 50).getRGB());

	GlStateManager.resetColor();
	resetTextureState();

	ufr.drawString(CURRENT, 20, sr.getScaledHeight() - 25, 0xFFFFFFFF);

	String step = PROGRESS + "/" + MAX;
	ufr.drawString(step, sr.getScaledWidth() - 20 - ufr.getStringWidth(step), sr.getScaledHeight() - 25, 0xe1e1e1FF);

	GlStateManager.resetColor();
	resetTextureState();

	Gui.drawRect(0, sr.getScaledHeight() - 2, (int)calc, sr.getScaledHeight(), new Color(149, 201, 144).getRGB());

	Gui.drawRect(0, sr.getScaledHeight() - 2, sr.getScaledWidth(), sr.getScaledHeight(), new Color(0, 0, 0, 10).getRGB());

	}

	private static void resetTextureState() {
		GlStateManager.textureState[GlStateManager.activeTextureUnit].textureName = -1;
	}

}