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package net.minecraft.server;

// CraftBukkit start
import org.bukkit.craftbukkit.block.CraftBlockState;
import org.bukkit.craftbukkit.event.CraftEventFactory;
import org.bukkit.event.block.BlockPlaceEvent;
// CraftBukkit end

public class ItemBlock extends Item {

    private int id;

    public ItemBlock(int i) {
        super(i);
        this.id = i + 256;
        this.b(Block.byId[i + 256].a(2));
    }

    public int a() {
        return this.id;
    }

    public boolean a(ItemStack itemstack, EntityHuman entityhuman, World world, int i, int j, int k, int l) {
        int clickedX = i, clickedY = j, clickedZ = k; // CraftBukkit
        int i1 = world.getTypeId(i, j, k);

        if (i1 == Block.SNOW.id) {
            l = 0;
        } else if (i1 != Block.VINE.id) {
            if (l == 0) {
                --j;
            }

            if (l == 1) {
                ++j;
            }

            if (l == 2) {
                --k;
            }

            if (l == 3) {
                ++k;
            }

            if (l == 4) {
                --i;
            }

            if (l == 5) {
                ++i;
            }
        }

        if (itemstack.count == 0) {
            return false;
        } else if (!entityhuman.c(i, j, k)) {
            return false;
        } else {
            world.getClass();
            if (j == 128 - 1 && Block.byId[this.id].material.isBuildable()) {
                return false;
            } else if (world.a(this.id, i, j, k, false, l)) {
                Block block = Block.byId[this.id];

                // CraftBukkit start - This executes the placement of the block
                CraftBlockState replacedBlockState = CraftBlockState.getBlockState(world, i, j, k);

                // There are like 30 combinations you can mix and match steps and double steps
                // of different materials, so there are a lot of different cases of what
                // would happen if you place x step onto another y step, so let's just keep
                // track of the entire state
                CraftBlockState blockStateBelow = null;
                // Toggles whether the normal or the block below is used for the place event
                boolean eventUseBlockBelow = false;
                if ((world.getTypeId(i, j - 1, k) == Block.STEP.id || world.getTypeId(i, j - 1, k) == Block.DOUBLE_STEP.id)
                        && (itemstack.id == Block.DOUBLE_STEP.id || itemstack.id == Block.STEP.id)) {
                    blockStateBelow = CraftBlockState.getBlockState(world, i, j - 1, k);
                    // Step is placed on step, forms a doublestep replacing the original step, so we need the lower block
                    eventUseBlockBelow = itemstack.id == Block.STEP.id && blockStateBelow.getTypeId() == Block.STEP.id;
                }

                /**
                * @see net.minecraft.server.World#setTypeIdAndData(int i, int j, int k, int l, int i1)
                *
                * This replaces world.setTypeIdAndData(IIIII), we're doing this because we need to
                * hook between the 'placement' and the informing to 'world' so we can
                * sanely undo this.
                *
                * Whenever the call to 'world.setTypeIdAndData' changes we need to figure out again what to
                * replace this with.
                */
                if (world.setRawTypeIdAndData(i, j, k, this.id, this.filterData(itemstack.getData()))) { // <-- world.setTypeIdAndData does this to place the block
                    BlockPlaceEvent event = CraftEventFactory.callBlockPlaceEvent(world, entityhuman, eventUseBlockBelow ? blockStateBelow : replacedBlockState, clickedX, clickedY, clickedZ, block);

                    if (event.isCancelled() || !event.canBuild()) {
                        if (blockStateBelow != null) { // Used for steps
                            world.setTypeIdAndData(i, j, k, replacedBlockState.getTypeId(), replacedBlockState.getRawData());
                            world.setTypeIdAndData(i, j - 1, k, blockStateBelow.getTypeId(), blockStateBelow.getRawData());

                        } else {

                            if (this.id == Block.ICE.id) {
                                // Ice will explode if we set straight to 0
                                world.setTypeId(i, j, k, 20);
                            }

                            world.setTypeIdAndData(i, j, k, replacedBlockState.getTypeId(), replacedBlockState.getRawData());
                        }
                        return true;

                    }
                    world.update(i, j, k, this.id); // <-- world.setTypeIdAndData does this on success (tell the world)

                    // CraftBukkit end

                    Block.byId[this.id].postPlace(world, i, j, k, l);
                    Block.byId[this.id].postPlace(world, i, j, k, entityhuman);
                    world.makeSound((double) ((float) i + 0.5F), (double) ((float) j + 0.5F), (double) ((float) k + 0.5F), block.stepSound.getName(), (block.stepSound.getVolume1() + 1.0F) / 2.0F, block.stepSound.getVolume2() * 0.8F);
                    --itemstack.count;
                }

                return true;
            } else {
                return false;
            }
        }
    }

    public String a(ItemStack itemstack) {
        return Block.byId[this.id].l();
    }

    public String b() {
        return Block.byId[this.id].l();
    }
}