package at.hannibal2.skyhanni.utils

import at.hannibal2.skyhanni.config.ConfigManager
import at.hannibal2.skyhanni.data.jsonobjects.other.HypixelPlayerApiJson
import at.hannibal2.skyhanni.data.jsonobjects.repo.MultiFilterJson
import at.hannibal2.skyhanni.events.NeuProfileDataLoadedEvent
import at.hannibal2.skyhanni.events.NeuRepositoryReloadEvent
import at.hannibal2.skyhanni.events.RepositoryReloadEvent
import at.hannibal2.skyhanni.features.inventory.bazaar.BazaarDataHolder
import at.hannibal2.skyhanni.test.command.ErrorManager
import at.hannibal2.skyhanni.utils.ItemBlink.checkBlinkItem
import at.hannibal2.skyhanni.utils.ItemUtils.getInternalName
import at.hannibal2.skyhanni.utils.NEUInternalName.Companion.asInternalName
import at.hannibal2.skyhanni.utils.StringUtils.removeColor
import com.google.gson.JsonObject
import com.google.gson.JsonPrimitive
import io.github.moulberry.notenoughupdates.NEUManager
import io.github.moulberry.notenoughupdates.NEUOverlay
import io.github.moulberry.notenoughupdates.NotEnoughUpdates
import io.github.moulberry.notenoughupdates.events.ProfileDataLoadedEvent
import io.github.moulberry.notenoughupdates.overlays.AuctionSearchOverlay
import io.github.moulberry.notenoughupdates.overlays.BazaarSearchOverlay
import io.github.moulberry.notenoughupdates.recipes.CraftingRecipe
import io.github.moulberry.notenoughupdates.recipes.Ingredient
import io.github.moulberry.notenoughupdates.recipes.NeuRecipe
import io.github.moulberry.notenoughupdates.util.ItemResolutionQuery
import io.github.moulberry.notenoughupdates.util.Utils
import net.minecraft.client.Minecraft
import net.minecraft.client.renderer.GLAllocation
import net.minecraft.client.renderer.GlStateManager
import net.minecraft.client.renderer.RenderHelper
import net.minecraft.init.Blocks
import net.minecraft.init.Items
import net.minecraft.item.ItemStack
import net.minecraft.nbt.NBTTagCompound
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
import org.lwjgl.opengl.GL11

object NEUItems {

    val manager: NEUManager get() = NotEnoughUpdates.INSTANCE.manager
    private val multiplierCache = mutableMapOf<NEUInternalName, Pair<NEUInternalName, Int>>()
    private val recipesCache = mutableMapOf<NEUInternalName, Set<NeuRecipe>>()
    private val ingredientsCache = mutableMapOf<NeuRecipe, Set<Ingredient>>()

    var allItemsCache = mapOf<String, NEUInternalName>() // item name -> internal name
    val allInternalNames = mutableListOf<NEUInternalName>()
    val ignoreItemsFilter = MultiFilter()

    private val fallbackItem by lazy {
        Utils.createItemStack(
            ItemStack(Blocks.barrier).item,
            "§cMissing Repo Item",
            "§cYour NEU repo seems to be out of date"
        )
    }

    @SubscribeEvent
    fun onRepoReload(event: RepositoryReloadEvent) {
        val ignoredItems = event.getConstant<MultiFilterJson>("IgnoredItems")
        ignoreItemsFilter.load(ignoredItems)
    }

    @SubscribeEvent
    fun onNeuRepoReload(event: NeuRepositoryReloadEvent) {
        allItemsCache = readAllNeuItems()
    }

    @SubscribeEvent
    fun onProfileDataLoaded(event: ProfileDataLoadedEvent) {
        val apiData = event.data ?: return
        try {
            val playerData = ConfigManager.gson.fromJson<HypixelPlayerApiJson>(apiData)
            NeuProfileDataLoadedEvent(playerData).postAndCatch()

        } catch (e: Exception) {
            ErrorManager.logErrorWithData(
                e, "Error reading hypixel player api data",
                "data" to apiData
            )
        }
    }

    @Deprecated("Use NEUInternalName rather than String", ReplaceWith("NEUInternalName.fromItemName(itemName)"))
    fun getRawInternalName(itemName: String): String = NEUInternalName.fromItemName(itemName).asString()

    fun readAllNeuItems(): Map<String, NEUInternalName> {
        allInternalNames.clear()
        val map = mutableMapOf<String, NEUInternalName>()
        for (rawInternalName in allNeuRepoItems().keys) {
            val name = manager.createItem(rawInternalName).displayName.removeColor().lowercase()
            val internalName = rawInternalName.asInternalName()
            map[name] = internalName
            allInternalNames.add(internalName)
        }
        return map
    }

    @Deprecated("moved", ReplaceWith("NEUInternalName.fromItemNameOrNull(itemName)"))
    fun getInternalNameOrNull(itemName: String): NEUInternalName? = NEUInternalName.fromItemNameOrNull(itemName)

    fun getInternalName(itemStack: ItemStack): String? = ItemResolutionQuery(manager)
        .withCurrentGuiContext()
        .withItemStack(itemStack)
        .resolveInternalName()

    fun getInternalNameOrNull(nbt: NBTTagCompound): NEUInternalName? =
        ItemResolutionQuery(manager).withItemNBT(nbt).resolveInternalName()?.asInternalName()

    fun NEUInternalName.getPrice(useSellingPrice: Boolean = false) = getPriceOrNull(useSellingPrice) ?: -1.0

    fun NEUInternalName.getNpcPrice() = getNpcPriceOrNull() ?: -1.0

    fun NEUInternalName.getNpcPriceOrNull(): Double? {
        if (this == NEUInternalName.WISP_POTION) {
            return 20_000.0
        }
        return BazaarDataHolder.getNpcPrice(this)
    }

    fun transHypixelNameToInternalName(hypixelId: String): NEUInternalName =
        manager.auctionManager.transformHypixelBazaarToNEUItemId(hypixelId).asInternalName()

    fun NEUInternalName.getPriceOrNull(useSellingPrice: Boolean = false): Double? {
        if (this == NEUInternalName.WISP_POTION) {
            return 20_000.0
        }
        val result = manager.auctionManager.getBazaarOrBin(asString(), useSellingPrice)
        if (result != -1.0) return result

        if (equals("JACK_O_LANTERN")) {
            return "PUMPKIN".asInternalName().getPrice(useSellingPrice) + 1
        }
        if (equals("GOLDEN_CARROT")) {
            // 6.8 for some players
            return 7.0 // NPC price
        }
        return getNpcPriceOrNull()
    }

    @Deprecated("Use NEUInternalName", ReplaceWith("internalName.asInternalName().getPrice(useSellingPrice)"))
    fun getPrice(internalName: String, useSellingPrice: Boolean = false): Double =
        internalName.asInternalName().getPrice(useSellingPrice)

    fun NEUInternalName.getItemStackOrNull(): ItemStack? = ItemResolutionQuery(manager)
        .withKnownInternalName(asString())
        .resolveToItemStack()?.copy()

    fun getItemStackOrNull(internalName: String) = internalName.asInternalName().getItemStackOrNull()

    // TODO remove
    @Deprecated("Use NEUInternalName rather than String", ReplaceWith("internalName.asInternalName().getItemStack()"))
    fun getItemStack(internalName: String): ItemStack =
        internalName.asInternalName().getItemStack()

    fun NEUInternalName.getItemStack(): ItemStack =
        getItemStackOrNull() ?: run {
            getPriceOrNull() ?: return@run fallbackItem
            if (ignoreItemsFilter.match(this.asString())) return@run fallbackItem
            ErrorManager.logErrorWithData(
                IllegalStateException("Something went wrong!"),
                "Encountered an error getting the item for §7$this§c. " +
                    "This may be because your NEU repo is outdated. Please ask in the SkyHanni " +
                    "Discord if this is the case.",
                "Item name" to this.asString(),
                "repo commit" to manager.latestRepoCommit
            )
            fallbackItem
        }

    fun isVanillaItem(item: ItemStack): Boolean =
        manager.auctionManager.isVanillaItem(item.getInternalName().asString())

    fun ItemStack.renderOnScreen(x: Float, y: Float, scaleMultiplier: Double = 1.0) {
        val item = checkBlinkItem()
        val isSkull = item.item === Items.skull

        val baseScale = (if (isSkull) 0.8f else 0.6f)
        val finalScale = baseScale * scaleMultiplier
        val diff = ((finalScale - baseScale) * 10).toFloat()

        val translateX: Float
        val translateY: Float
        if (isSkull) {
            translateX = x - 2 - diff
            translateY = y - 2 - diff
        } else {
            translateX = x - diff
            translateY = y - diff
        }

        GlStateManager.pushMatrix()

        GlStateManager.translate(translateX, translateY, -19f)
        GlStateManager.scale(finalScale, finalScale, 0.2)
        GL11.glNormal3f(0f, 0f, 1f / 0.2f) // Compensate for z scaling

        RenderHelper.enableGUIStandardItemLighting()

        AdjustStandardItemLighting.adjust() // Compensate for z scaling

        Minecraft.getMinecraft().renderItem.renderItemIntoGUI(item, 0, 0)
        RenderHelper.disableStandardItemLighting()

        GlStateManager.popMatrix()
    }

    private object AdjustStandardItemLighting {

        private const val lightScaling = 2.47f // Adjust as needed
        private const val g = 0.6f // Original Value taken from RenderHelper
        private const val lightIntensity = lightScaling * g
        private val itemLightBuffer = GLAllocation.createDirectFloatBuffer(16);

        init {
            itemLightBuffer.clear()
            itemLightBuffer.put(lightIntensity).put(lightIntensity).put(lightIntensity).put(1.0f)
            itemLightBuffer.flip()
        }

        fun adjust() {
            GL11.glLight(16384, 4609, itemLightBuffer)
            GL11.glLight(16385, 4609, itemLightBuffer)
        }
    }

    fun allNeuRepoItems(): Map<String, JsonObject> = NotEnoughUpdates.INSTANCE.manager.itemInformation

    fun getMultiplier(internalName: NEUInternalName, tryCount: Int = 0): Pair<NEUInternalName, Int> {
        if (multiplierCache.contains(internalName)) {
            return multiplierCache[internalName]!!
        }
        if (tryCount == 10) {
            ErrorManager.logErrorStateWithData(
                "Cound not load recipe data.",
                "Failed to find item multiplier",
                "internalName" to internalName
            )
            return Pair(internalName, 1)
        }
        for (recipe in getRecipes(internalName)) {
            if (recipe !is CraftingRecipe) continue

            val map = mutableMapOf<NEUInternalName, Int>()
            for (ingredient in recipe.getCachedIngredients()) {
                val count = ingredient.count.toInt()
                var internalItemId = ingredient.internalItemId.asInternalName()
                // ignore cactus green
                if (internalName == "ENCHANTED_CACTUS_GREEN".asInternalName() && internalItemId == "INK_SACK-2".asInternalName()) {
                    internalItemId = "CACTUS".asInternalName()
                }

                // ignore wheat in enchanted cookie
                if (internalName == "ENCHANTED_COOKIE".asInternalName() && internalItemId == "WHEAT".asInternalName()) {
                    continue
                }

                // ignore golden carrot in enchanted golden carrot
                if (internalName == "ENCHANTED_GOLDEN_CARROT".asInternalName() && internalItemId == "GOLDEN_CARROT".asInternalName()) {
                    continue
                }

                // ignore rabbit hide in leather
                if (internalName == "LEATHER".asInternalName() && internalItemId == "RABBIT_HIDE".asInternalName()) {
                    continue
                }

                val old = map.getOrDefault(internalItemId, 0)
                map[internalItemId] = old + count
            }
            if (map.size != 1) continue
            val current = map.iterator().next().toPair()
            val id = current.first
            return if (current.second > 1) {
                val child = getMultiplier(id, tryCount + 1)
                val result = Pair(child.first, child.second * current.second)
                multiplierCache[internalName] = result
                result
            } else {
                Pair(internalName, 1)
            }
        }

        val result = Pair(internalName, 1)
        multiplierCache[internalName] = result
        return result
    }

    @Deprecated("Do not use strings as id", ReplaceWith("NEUItems.getMultiplier(internalName.asInternalName())"))
    fun getMultiplier(internalName: String, tryCount: Int = 0): Pair<String, Int> {
        val pair = getMultiplier(internalName.asInternalName(), tryCount)
        return Pair(pair.first.asString(), pair.second)
    }

    fun getRecipes(internalName: NEUInternalName): Set<NeuRecipe> {
        if (recipesCache.contains(internalName)) {
            return recipesCache[internalName]!!
        }
        val recipes = manager.getRecipesFor(internalName.asString())
        recipesCache[internalName] = recipes
        return recipes
    }

    fun NeuRecipe.getCachedIngredients() = ingredientsCache.getOrPut(this) { ingredients }

    fun neuHasFocus(): Boolean {
        if (AuctionSearchOverlay.shouldReplace()) return true
        if (BazaarSearchOverlay.shouldReplace()) return true
        if (InventoryUtils.inStorage() && InventoryUtils.isNeuStorageEnabled.getValue()) return true
        if (NEUOverlay.searchBarHasFocus) return true

        return false
    }

    // Uses NEU
    fun saveNBTData(item: ItemStack, removeLore: Boolean = true): String {
        val jsonObject = manager.getJsonForItem(item)
        if (!jsonObject.has("internalname")) {
            jsonObject.add("internalname", JsonPrimitive("_"))
        }
        if (removeLore && jsonObject.has("lore")) jsonObject.remove("lore")
        val jsonString = jsonObject.toString()
        return StringUtils.encodeBase64(jsonString)
    }

    fun loadNBTData(encoded: String): ItemStack {
        val jsonString = StringUtils.decodeBase64(encoded)
        val jsonObject = ConfigManager.gson.fromJson(jsonString, JsonObject::class.java)
        return manager.jsonToStack(jsonObject, false)
    }
}