package at.hannibal2.skyhanni.utils

import at.hannibal2.skyhanni.config.ConfigManager
import at.hannibal2.skyhanni.data.jsonobjects.other.HypixelApiTrophyFish
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.BazaarApi.Companion.getBazaarData
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.NumberUtil.isInt
import at.hannibal2.skyhanni.utils.PrimitiveItemStack.Companion.makePrimitiveStack
import com.google.gson.JsonObject
import com.google.gson.JsonPrimitive
import com.google.gson.TypeAdapter
import com.google.gson.stream.JsonReader
import com.google.gson.stream.JsonToken
import com.google.gson.stream.JsonWriter
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, PrimitiveItemStack>()
    private val recipesCache = mutableMapOf<NEUInternalName, Set<NeuRecipe>>()
    private val ingredientsCache = mutableMapOf<NeuRecipe, Set<Ingredient>>()

    private val hypixelApiGson by lazy {
        ConfigManager.createBaseGsonBuilder()
            .registerTypeAdapter(HypixelApiTrophyFish::class.java, object : TypeAdapter<HypixelApiTrophyFish>() {
                override fun write(out: JsonWriter, value: HypixelApiTrophyFish) {}

                override fun read(reader: JsonReader): HypixelApiTrophyFish {
                    val trophyFish = mutableMapOf<String, Int>()
                    var totalCaught = 0
                    reader.beginObject()
                    while (reader.hasNext()) {
                        val key = reader.nextName()
                        if (key == "total_caught") {
                            totalCaught = reader.nextInt()
                            continue
                        }
                        if (reader.peek() == JsonToken.NUMBER) {
                            val valueAsString = reader.nextString()
                            if (valueAsString.isInt()) {
                                trophyFish[key] = valueAsString.toInt()
                                continue
                            }
                        }
                        reader.skipValue()
                    }
                    reader.endObject()
                    return HypixelApiTrophyFish(totalCaught, trophyFish)
                }
            }.nullSafe())
            .create()
    }

    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 = hypixelApiGson.fromJson<HypixelPlayerApiJson>(apiData)
            NeuProfileDataLoadedEvent(playerData).postAndCatch()

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

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

            // TODO remove one of them once neu is consistent
            name = name.removePrefix("§f§f§7[lvl 1➡100] ")
            name = name.removePrefix("§7[lvl 1➡100] ")

            if (name.contains("[lvl 1➡100]")) {
                if (LorenzUtils.isInDevEnvironment()) {
                    error("wrong name: '$name'")
                }
                println("wrong name: '$name'")
            }
            map[name] = internalName
            allInternalNames.add(internalName)
        }
        return map
    }

    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
        }

        getBazaarData()?.let {
            return if (useSellingPrice) it.sellOfferPrice else it.instantBuyPrice
        }

        val result = manager.auctionManager.getLowestBin(asString())
        if (result != -1L) return result.toDouble()

        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()
    }

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

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

    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())

    const val itemFontSize = 2.0 / 3.0

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

        val baseScale = (if (isSkull) 4f / 3f else 1f)
        val finalScale = baseScale * scaleMultiplier

        val translateX: Float
        val translateY: Float
        if (isSkull) {
            val skullDiff = ((scaleMultiplier) * 2.5).toFloat()
            translateX = x - skullDiff
            translateY = y - skullDiff
        } else {
            translateX = x
            translateY = y
        }

        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

    @Deprecated("outdated", ReplaceWith("NEUItems.getPrimitiveMultiplier(internalName, tryCount)"))
    fun getMultiplier(internalName: NEUInternalName, tryCount: Int = 0): Pair<NEUInternalName, Int> {
        val (name, amount) = getPrimitiveMultiplier(internalName, tryCount)
        return Pair(name, amount)
    }

    fun getPrimitiveMultiplier(internalName: NEUInternalName, tryCount: Int = 0): PrimitiveItemStack {
        multiplierCache[internalName]?.let { return it }
        if (tryCount == 10) {
            ErrorManager.logErrorStateWithData(
                "Could not load recipe data.",
                "Failed to find item multiplier",
                "internalName" to internalName
            )
            return internalName.makePrimitiveStack()
        }
        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 = getPrimitiveMultiplier(id, tryCount + 1)
                val result = child.multiply(current.second)
                multiplierCache[internalName] = result
                result
            } else {
                internalName.makePrimitiveStack()
            }
        }

        val result = internalName.makePrimitiveStack()
        multiplierCache[internalName] = result
        return result
    }

    fun getRecipes(internalName: NEUInternalName): Set<NeuRecipe> {
        return recipesCache.getOrPut(internalName) {
            manager.getRecipesFor(internalName.asString())
        }
    }

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

    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)
    }

    fun NeuRecipe.allIngredients(): Set<Ingredient> = ingredients
}