package net.minecraft.block;

import net.minecraft.block.material.Material;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

import net.minecraftforge.common.ForgeDirection;
import static net.minecraftforge.common.ForgeDirection.*;

public class BlockLever extends Block
{
    protected BlockLever(int par1)
    {
        super(par1, Material.circuits);
        this.setCreativeTab(CreativeTabs.tabRedstone);
    }

    /**
     * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
     * cleared to be reused)
     */
    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    {
        return null;
    }

    /**
     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
     */
    public boolean isOpaqueCube()
    {
        return false;
    }

    /**
     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
     */
    public boolean renderAsNormalBlock()
    {
        return false;
    }

    /**
     * The type of render function that is called for this block
     */
    public int getRenderType()
    {
        return 12;
    }

    /**
     * checks to see if you can place this block can be placed on that side of a block: BlockLever overrides
     */
    public boolean canPlaceBlockOnSide(World par1World, int par2, int par3, int par4, int par5)
    {
        ForgeDirection dir = ForgeDirection.getOrientation(par5);
        return (dir == DOWN  && par1World.isBlockSolidOnSide(par2, par3 + 1, par4, DOWN )) ||
               (dir == UP    && par1World.isBlockSolidOnSide(par2, par3 - 1, par4, UP   )) ||
               (dir == NORTH && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH)) ||
               (dir == SOUTH && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) ||
               (dir == WEST  && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST )) ||
               (dir == EAST  && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST ));
    }

    /**
     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
     */
    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    {
        return par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST ) ||
               par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST ) ||
               par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH) ||
               par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH) ||
               par1World.isBlockSolidOnSide(par2, par3 - 1, par4, UP   ) ||
               par1World.isBlockSolidOnSide(par2, par3 + 1, par4, DOWN );
    }

    /**
     * Called when a block is placed using its ItemBlock. Args: World, X, Y, Z, side, hitX, hitY, hitZ, block metadata
     */
    public int onBlockPlaced(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
    {
        int j1 = par9 & 8;
        int k1 = par9 & 7;
        byte b0 = -1;

        if (par5 == 0 && par1World.isBlockSolidOnSide(par2, par3 + 1, par4, DOWN))
        {
            b0 = 0;
        }

        if (par5 == 1 && par1World.isBlockSolidOnSide(par2, par3 - 1, par4, UP))
        {
            b0 = 5;
        }

        if (par5 == 2 && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH))
        {
            b0 = 4;
        }

        if (par5 == 3 && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH))
        {
            b0 = 3;
        }

        if (par5 == 4 && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST))
        {
            b0 = 2;
        }

        if (par5 == 5 && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST))
        {
            b0 = 1;
        }

        return b0 + j1;
    }

    /**
     * Called when the block is placed in the world.
     */
    public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLivingBase par5EntityLivingBase, ItemStack par6ItemStack)
    {
        int l = par1World.getBlockMetadata(par2, par3, par4);
        int i1 = l & 7;
        int j1 = l & 8;

        if (i1 == invertMetadata(1))
        {
            if ((MathHelper.floor_double((double)(par5EntityLivingBase.rotationYaw * 4.0F / 360.0F) + 0.5D) & 1) == 0)
            {
                par1World.setBlockMetadataWithNotify(par2, par3, par4, 5 | j1, 2);
            }
            else
            {
                par1World.setBlockMetadataWithNotify(par2, par3, par4, 6 | j1, 2);
            }
        }
        else if (i1 == invertMetadata(0))
        {
            if ((MathHelper.floor_double((double)(par5EntityLivingBase.rotationYaw * 4.0F / 360.0F) + 0.5D) & 1) == 0)
            {
                par1World.setBlockMetadataWithNotify(par2, par3, par4, 7 | j1, 2);
            }
            else
            {
                par1World.setBlockMetadataWithNotify(par2, par3, par4, 0 | j1, 2);
            }
        }
    }

    /**
     * only used in ComponentScatteredFeatureJunglePyramid.addComponentParts"
     */
    public static int invertMetadata(int par0)
    {
        switch (par0)
        {
            case 0:
                return 0;
            case 1:
                return 5;
            case 2:
                return 4;
            case 3:
                return 3;
            case 4:
                return 2;
            case 5:
                return 1;
            default:
                return -1;
        }
    }

    /**
     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
     * their own) Args: x, y, z, neighbor blockID
     */
    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    {
        if (this.checkIfAttachedToBlock(par1World, par2, par3, par4))
        {
            int i1 = par1World.getBlockMetadata(par2, par3, par4) & 7;
            boolean flag = false;

            if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST) && i1 == 1)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST) && i1 == 2)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH) && i1 == 3)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH) && i1 == 4)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2, par3 - 1, par4, UP) && i1 == 5)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2, par3 - 1, par4, UP) && i1 == 6)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2, par3 + 1, par4, DOWN) && i1 == 0)
            {
                flag = true;
            }

            if (!par1World.isBlockSolidOnSide(par2, par3 + 1, par4, DOWN) && i1 == 7)
            {
                flag = true;
            }

            if (flag)
            {
                this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
                par1World.setBlockToAir(par2, par3, par4);
            }
        }
    }

    /**
     * Checks if the block is attached to another block. If it is not, it returns false and drops the block as an item.
     * If it is it returns true.
     */
    private boolean checkIfAttachedToBlock(World par1World, int par2, int par3, int par4)
    {
        if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
        {
            this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
            par1World.setBlockToAir(par2, par3, par4);
            return false;
        }
        else
        {
            return true;
        }
    }

    /**
     * Updates the blocks bounds based on its current state. Args: world, x, y, z
     */
    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    {
        int l = par1IBlockAccess.getBlockMetadata(par2, par3, par4) & 7;
        float f = 0.1875F;

        if (l == 1)
        {
            this.setBlockBounds(0.0F, 0.2F, 0.5F - f, f * 2.0F, 0.8F, 0.5F + f);
        }
        else if (l == 2)
        {
            this.setBlockBounds(1.0F - f * 2.0F, 0.2F, 0.5F - f, 1.0F, 0.8F, 0.5F + f);
        }
        else if (l == 3)
        {
            this.setBlockBounds(0.5F - f, 0.2F, 0.0F, 0.5F + f, 0.8F, f * 2.0F);
        }
        else if (l == 4)
        {
            this.setBlockBounds(0.5F - f, 0.2F, 1.0F - f * 2.0F, 0.5F + f, 0.8F, 1.0F);
        }
        else if (l != 5 && l != 6)
        {
            if (l == 0 || l == 7)
            {
                f = 0.25F;
                this.setBlockBounds(0.5F - f, 0.4F, 0.5F - f, 0.5F + f, 1.0F, 0.5F + f);
            }
        }
        else
        {
            f = 0.25F;
            this.setBlockBounds(0.5F - f, 0.0F, 0.5F - f, 0.5F + f, 0.6F, 0.5F + f);
        }
    }

    /**
     * Called upon block activation (right click on the block.)
     */
    public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    {
        if (par1World.isRemote)
        {
            return true;
        }
        else
        {
            int i1 = par1World.getBlockMetadata(par2, par3, par4);
            int j1 = i1 & 7;
            int k1 = 8 - (i1 & 8);
            par1World.setBlockMetadataWithNotify(par2, par3, par4, j1 + k1, 3);
            par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, k1 > 0 ? 0.6F : 0.5F);
            par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);

            if (j1 == 1)
            {
                par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
            }
            else if (j1 == 2)
            {
                par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
            }
            else if (j1 == 3)
            {
                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
            }
            else if (j1 == 4)
            {
                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
            }
            else if (j1 != 5 && j1 != 6)
            {
                if (j1 == 0 || j1 == 7)
                {
                    par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
                }
            }
            else
            {
                par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
            }

            return true;
        }
    }

    /**
     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
     */
    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    {
        if ((par6 & 8) > 0)
        {
            par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);
            int j1 = par6 & 7;

            if (j1 == 1)
            {
                par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
            }
            else if (j1 == 2)
            {
                par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
            }
            else if (j1 == 3)
            {
                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
            }
            else if (j1 == 4)
            {
                par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
            }
            else if (j1 != 5 && j1 != 6)
            {
                if (j1 == 0 || j1 == 7)
                {
                    par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
                }
            }
            else
            {
                par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
            }
        }

        super.breakBlock(par1World, par2, par3, par4, par5, par6);
    }

    /**
     * Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
     * returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
     * Y, Z, side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
     */
    public int isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    {
        return (par1IBlockAccess.getBlockMetadata(par2, par3, par4) & 8) > 0 ? 15 : 0;
    }

    /**
     * Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
     * side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
     */
    public int isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    {
        int i1 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);

        if ((i1 & 8) == 0)
        {
            return 0;
        }
        else
        {
            int j1 = i1 & 7;
            return j1 == 0 && par5 == 0 ? 15 : (j1 == 7 && par5 == 0 ? 15 : (j1 == 6 && par5 == 1 ? 15 : (j1 == 5 && par5 == 1 ? 15 : (j1 == 4 && par5 == 2 ? 15 : (j1 == 3 && par5 == 3 ? 15 : (j1 == 2 && par5 == 4 ? 15 : (j1 == 1 && par5 == 5 ? 15 : 0)))))));
        }
    }

    /**
     * Can this block provide power. Only wire currently seems to have this change based on its state.
     */
    public boolean canProvidePower()
    {
        return true;
    }
}
