package net.shadowfacts.phycon.block.extractor

import net.minecraft.block.Block
import net.minecraft.block.BlockState
import net.minecraft.block.Material
import net.minecraft.entity.LivingEntity
import net.minecraft.item.ItemStack
import net.minecraft.sound.BlockSoundGroup
import net.minecraft.util.Identifier
import net.minecraft.util.math.BlockPos
import net.minecraft.util.math.Direction
import net.minecraft.util.shape.VoxelShape
import net.minecraft.util.shape.VoxelShapes
import net.minecraft.world.BlockView
import net.minecraft.world.World
import net.shadowfacts.phycon.PhysicalConnectivity
import net.shadowfacts.phycon.block.FaceDeviceBlock
import kotlin.math.max
import kotlin.math.min

/**
 * @author shadowfacts
 */
class ExtractorBlock: FaceDeviceBlock<ExtractorBlockEntity>(
	Settings.of(Material.METAL)
		.strength(1.5f)
		.sounds(BlockSoundGroup.METAL)
) {

	companion object {
		val ID = Identifier(PhysicalConnectivity.MODID, "extractor")
		private val EXTRACTOR_SHAPES = mutableMapOf<Direction, VoxelShape>()

		init {
			val components = arrayOf(
				doubleArrayOf(0.0, 0.0, 0.0, 16.0, 2.0, 16.0),
				doubleArrayOf(2.0, 2.0, 2.0, 14.0, 4.0, 14.0),
				doubleArrayOf(4.0, 4.0, 4.0, 12.0, 6.0, 12.0),
			)
			val directions = arrayOf(
				Triple(Direction.DOWN, null, false),
				Triple(Direction.UP, null, true),
				Triple(Direction.NORTH, 2, false),
				Triple(Direction.SOUTH, 2, true),
				Triple(Direction.WEST, 1, false),
				Triple(Direction.EAST, 1, true),
			)
			for ((dir, rotate, flip) in directions) {
				val shapes = components.map { it ->
					val arr = it.copyOf()
					if (rotate != null) {
						for (i in 0 until 3) {
							arr[i] = it[(i + rotate) % 3]
							arr[3 + i] = it[3 + ((i + rotate) % 3)]
						}
					}
					if (flip) {
						for (i in arr.indices) {
							arr[i] = 16.0 - arr[i]
						}
					}
					createCuboidShape(min(arr[0], arr[3]), min(arr[1], arr[4]), min(arr[2], arr[5]), max(arr[0], arr[3]), max(arr[1], arr[4]), max(arr[2], arr[5]))
				}
				EXTRACTOR_SHAPES[dir] = shapes.reduce { a, b -> VoxelShapes.union(a, b) }
			}
		}
	}

	override val faceThickness = 6.0
	override val faceShapes: Map<Direction, VoxelShape> = EXTRACTOR_SHAPES

	override fun createBlockEntity(pos: BlockPos, state: BlockState) = ExtractorBlockEntity(pos, state)

	override fun onPlaced(world: World, pos: BlockPos, state: BlockState, entity: LivingEntity?, stack: ItemStack) {
		if (!world.isClient) {
			getBlockEntity(world, pos)!!.updateInventory()
		}
	}

	override fun neighborUpdate(state: BlockState, world: World, pos: BlockPos, neighbor: Block, neighborPos: BlockPos, bl: Boolean) {
		if (!world.isClient) {
			getBlockEntity(world, pos)!!.updateInventory()
		}
	}

}