package crazypants.enderio.conduit.render;

import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.item.ItemStack;
import net.minecraftforge.client.IItemRenderer;

import org.lwjgl.opengl.GL11;

import com.enderio.core.client.render.BoundingBox;
import com.enderio.core.client.render.CubeRenderer;

public class ItemConduitRenderer implements IItemRenderer {

  private final BoundingBox bb;

  public ItemConduitRenderer() {
    float scale = 0.8f;
    bb = BoundingBox.UNIT_CUBE.scale(scale, scale, scale);
  }

  @Override
  public boolean handleRenderType(ItemStack item, ItemRenderType type) {
    return type == ItemRenderType.ENTITY || type == ItemRenderType.EQUIPPED || type == ItemRenderType.INVENTORY || type == ItemRenderType.EQUIPPED_FIRST_PERSON;
  }

  @Override
  public boolean shouldUseRenderHelper(ItemRenderType type, ItemStack item, ItemRendererHelper helper) {
    return true;
  }

  @Override
  public void renderItem(ItemRenderType type, ItemStack item, Object... data) {
    RenderBlocks renderBlocks = (RenderBlocks) data[0];
    if(type == ItemRenderType.INVENTORY) {
      GL11.glTranslatef(0, -0.1f, 0);
      renderToInventory(item, renderBlocks);
    } else if(type == ItemRenderType.EQUIPPED) {
      renderEquipped(item, renderBlocks);
    } else if(type == ItemRenderType.ENTITY) {
      renderEntity(item, renderBlocks);
    } else if(type == ItemRenderType.EQUIPPED_FIRST_PERSON) {
      GL11.glTranslatef(0.3f, 0.2f, 0);
      GL11.glScalef(1.25f, 1.25f, 1.25f);
      renderEntity(item, renderBlocks);
    } else {
      System.out.println("ItemConduitRenderer.renderItem: Unsupported render type");
    }
  }

  private void renderEntity(ItemStack item, RenderBlocks renderBlocks) {
    GL11.glPushMatrix();
    GL11.glScalef(0.5f, 0.5f, 0.5f);
    renderToInventory(item, renderBlocks);
    GL11.glPopMatrix();
  }

  private void renderEquipped(ItemStack item, RenderBlocks renderBlocks) {
    renderToInventory(item, renderBlocks);
  }

  private void renderToInventory(ItemStack item, RenderBlocks renderBlocks) {
    Tessellator.instance.startDrawingQuads();
    CubeRenderer.render(bb, item.getItem().getIconFromDamage(item.getItemDamage()));
    Tessellator.instance.draw();
  }

}