package com.beemer.essentials.gui

import com.beemer.essentials.config.AntimobConfig
import net.minecraft.ChatFormatting
import net.minecraft.core.component.DataComponents
import net.minecraft.network.chat.Component
import net.minecraft.server.level.ServerPlayer
import net.minecraft.world.Container
import net.minecraft.world.entity.player.Inventory
import net.minecraft.world.inventory.AbstractContainerMenu
import net.minecraft.world.inventory.ClickType
import net.minecraft.world.inventory.MenuType
import net.minecraft.world.inventory.Slot
import net.minecraft.world.item.ItemStack
import net.minecraft.world.item.Items
import net.minecraft.world.item.component.ResolvableProfile

class AntimobGui(
        syncId: Int,
        playerInv: Inventory,
        val container: Container,
        viewer: ServerPlayer
) : AbstractContainerMenu(MenuType.GENERIC_9x2, syncId) {
    companion object {
        const val CONTAINER_COLUMNS = 9
        const val CONTAINER_ROWS = 2
        const val CONTAINER_SIZE = CONTAINER_COLUMNS * CONTAINER_ROWS

        const val SLOT_SIZE = 18
        const val LEFT_PADDING = 8
        const val TOP_PADDING = 18

        const val PLAYER_INV_TOP = 58
        const val HOTBAR_Y = 116
    }

    private val headSlotToMob = mapOf(0 to "크리퍼", 1 to "가스트", 2 to "엔더맨")
    private val glassSlotToMob = mapOf(9 to "크리퍼", 10 to "가스트", 11 to "엔더맨")

    init {
        for (i in 0 until CONTAINER_SIZE) {
            val x = LEFT_PADDING + (i % CONTAINER_COLUMNS) * SLOT_SIZE
            val y = TOP_PADDING + (i / CONTAINER_COLUMNS) * SLOT_SIZE
            addSlot(
                    object : Slot(container, i, x, y) {
                        override fun mayPickup(
                                player: net.minecraft.world.entity.player.Player
                        ): Boolean = false
                        override fun mayPlace(stack: ItemStack): Boolean = false
                    }
            )
        }

        for (row in 0 until 3) {
            for (col in 0 until 9) {
                val index = col + row * 9 + 9
                val x = LEFT_PADDING + col * SLOT_SIZE
                val y = PLAYER_INV_TOP + row * SLOT_SIZE
                addSlot(Slot(playerInv, index, x, y))
            }
        }

        for (col in 0 until 9) {
            val x = LEFT_PADDING + col * SLOT_SIZE
            val y = HOTBAR_Y
            addSlot(Slot(playerInv, col, x, y))
        }

        refreshContainerContents()
    }

    override fun clicked(
            slotId: Int,
            button: Int,
            clickType: ClickType,
            player: net.minecraft.world.entity.player.Player
    ) {
        if (player is ServerPlayer && slotId in 0 until CONTAINER_SIZE) {
            if (glassSlotToMob.containsKey(slotId)) {
                val mob = glassSlotToMob[slotId] ?: return
                AntimobConfig.toggle(mob)
                container.setItem(slotId, makeToggleGlass(mob))
                return
            }
        }

        super.clicked(slotId, button, clickType, player)
    }

    override fun stillValid(player: net.minecraft.world.entity.player.Player): Boolean = true

    override fun quickMoveStack(
            player: net.minecraft.world.entity.player.Player,
            index: Int
    ): ItemStack = ItemStack.EMPTY

    private fun makeMobHead(mob: String): ItemStack {
        val headItem = ItemStack(Items.PLAYER_HEAD)

        // MHF_ 스킨 이름 사용 (네트워크 요청 없음)
        val skinName =
                when (mob) {
                    "크리퍼" -> "MHF_Creeper"
                    "가스트" -> "MHF_Ghast"
                    "엔더맨" -> "MHF_Enderman"
                    else -> "MHF_Steve"
                }

        val resolvableProfile =
                ResolvableProfile(
                        java.util.Optional.of(skinName),
                        java.util.Optional.empty<java.util.UUID>(),
                        com.mojang.authlib.properties.PropertyMap()
                )

        headItem.set(
                DataComponents.CUSTOM_NAME,
                Component.literal(mob).withStyle { it.withColor(ChatFormatting.YELLOW) }
        )
        headItem.set(DataComponents.PROFILE, resolvableProfile)
        return headItem
    }

    private fun makeToggleGlass(mob: String): ItemStack {
        val enabled = AntimobConfig.get(mob)
        val glass =
                if (enabled) ItemStack(Items.GREEN_STAINED_GLASS_PANE)
                else ItemStack(Items.RED_STAINED_GLASS_PANE)
        val statusText = if (enabled) "활성화" else "비활성화"
        glass.set(
                DataComponents.CUSTOM_NAME,
                Component.literal(statusText).withStyle {
                    it.withColor(if (enabled) ChatFormatting.GREEN else ChatFormatting.RED)
                }
        )
        return glass
    }

    private fun refreshContainerContents() {
        headSlotToMob.forEach { (slot, mob) -> container.setItem(slot, makeMobHead(mob)) }
        glassSlotToMob.forEach { (slot, mob) -> container.setItem(slot, makeToggleGlass(mob)) }
    }
}