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path: root/src/main/kotlin/features/inventory/buttons/InventoryButton.kt
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package moe.nea.firmament.features.inventory.buttons

import com.mojang.brigadier.StringReader
import me.shedaniel.math.Dimension
import me.shedaniel.math.Point
import me.shedaniel.math.Rectangle
import kotlinx.serialization.Serializable
import net.minecraft.client.gui.DrawContext
import net.minecraft.command.CommandRegistryAccess
import net.minecraft.command.argument.ItemStackArgumentType
import net.minecraft.item.ItemStack
import net.minecraft.resource.featuretoggle.FeatureFlags
import net.minecraft.util.Identifier
import moe.nea.firmament.repo.ItemCache.asItemStack
import moe.nea.firmament.repo.RepoManager
import moe.nea.firmament.util.MC
import moe.nea.firmament.util.SkyblockId
import moe.nea.firmament.util.memoize

@Serializable
data class InventoryButton(
    var x: Int,
    var y: Int,
    var anchorRight: Boolean,
    var anchorBottom: Boolean,
    var icon: String? = "",
    var command: String? = "",
) {
    companion object {
        val itemStackParser by lazy {
            ItemStackArgumentType.itemStack(CommandRegistryAccess.of(MC.defaultRegistries,
                                                                     FeatureFlags.VANILLA_FEATURES))
        }
        val dimensions = Dimension(18, 18)
        val getItemForName = ::getItemForName0.memoize(1024)
        fun getItemForName0(icon: String): ItemStack {
            val repoItem = RepoManager.getNEUItem(SkyblockId(icon))
            var itemStack = repoItem.asItemStack(idHint = SkyblockId(icon))
            if (repoItem == null) {
                val giveSyntaxItem = if (icon.startsWith("/give") || icon.startsWith("give"))
                    icon.split(" ", limit = 3).getOrNull(2) ?: icon
                else icon
                val componentItem =
                    runCatching {
                        itemStackParser.parse(StringReader(giveSyntaxItem)).createStack(1, false)
                    }.getOrNull()
                if (componentItem != null)
                    itemStack = componentItem
            }
            return itemStack
        }
    }

    fun render(context: DrawContext) {
        context.drawSprite(
            0,
            0,
            0,
            dimensions.width,
            dimensions.height,
            MC.guiAtlasManager.getSprite(Identifier.of("firmament:inventory_button_background"))
        )
        context.drawItem(getItem(), 1, 1)
    }

    fun isValid() = !icon.isNullOrBlank() && !command.isNullOrBlank()

    fun getPosition(guiRect: Rectangle): Point {
        return Point(
            (if (anchorRight) guiRect.maxX else guiRect.minX) + x,
            (if (anchorBottom) guiRect.maxY else guiRect.minY) + y,
        )
    }

    fun getBounds(guiRect: Rectangle): Rectangle {
        return Rectangle(getPosition(guiRect), dimensions)
    }

    fun getItem(): ItemStack {
        return getItemForName(icon ?: "")
    }

}