package client.renderer;

import net.minecraft.block.Block;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.IBlockAccess;
import net.minecraftforge.common.util.ForgeDirection;

import common.tileentities.TE_ItemProxyCable;

import cpw.mods.fml.client.registry.ISimpleBlockRenderingHandler;
import cpw.mods.fml.client.registry.RenderingRegistry;

public class ConduitRenderer implements ISimpleBlockRenderingHandler {

    public static final int RID = RenderingRegistry.getNextAvailableRenderId();
    private static final ConduitRenderer INSTANCE = new ConduitRenderer();

    private ConduitRenderer() {}

    public static ConduitRenderer getInstance() {
        return INSTANCE;
    }

    @Override
    public void renderInventoryBlock(Block block, int metadata, int modelId, RenderBlocks renderer) {}

    @Override
    public boolean renderWorldBlock(IBlockAccess world, int x, int y, int z, Block block, int modelId,
            RenderBlocks renderer) {
        final TileEntity te = world.getTileEntity(x, y, z);
        if (te instanceof TE_ItemProxyCable) {
            final TE_ItemProxyCable cable = (TE_ItemProxyCable) te;

            final float thickness = TE_ItemProxyCable.getThickness();
            final float space = (1.0f - thickness) / 2.0f;

            float xThickness = thickness;
            float xOffset = space;
            float yThickness = thickness;
            float yOffset = space;
            float zThickness = thickness;
            float zOffset = space;

            for (ForgeDirection side : ForgeDirection.VALID_DIRECTIONS) {
                if (cable.isConnected(side)) {
                    switch (side) {
                        case DOWN:
                            yOffset = 0.0F;
                            yThickness += space;
                            break;
                        case UP:
                            yThickness += space;
                            break;
                        case NORTH:
                            zOffset = 0.0F;
                            zThickness += space;
                            break;
                        case SOUTH:
                            zThickness += space;
                            break;
                        case WEST:
                            xOffset += 0.0F;
                            xThickness += space;
                            break;
                        case EAST:
                            xThickness += space;
                            break;
                    }
                }
            }

            block.setBlockBounds(
                    xOffset,
                    yOffset,
                    zOffset,
                    xOffset + xThickness,
                    yOffset + yThickness,
                    zOffset + zThickness);
            renderer.setRenderBoundsFromBlock(block);
        }

        return false;
    }

    @Override
    public boolean shouldRender3DInInventory(int modelId) {
        return true;
    }

    @Override
    public int getRenderId() {
        return ConduitRenderer.RID;
    }
}