/*
 * Firmament is a Hypixel Skyblock mod for modern Minecraft versions
 * Copyright (C) 2023 Linnea Gräf
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package moe.nea.firmament.rei

import io.github.moulberry.repo.data.NEUIngredient
import io.github.moulberry.repo.data.NEUItem
import java.util.stream.Stream
import me.shedaniel.rei.api.client.entry.renderer.EntryRenderer
import me.shedaniel.rei.api.common.entry.EntrySerializer
import me.shedaniel.rei.api.common.entry.EntryStack
import me.shedaniel.rei.api.common.entry.comparison.ComparisonContext
import me.shedaniel.rei.api.common.entry.type.EntryDefinition
import me.shedaniel.rei.api.common.entry.type.EntryType
import me.shedaniel.rei.api.common.entry.type.VanillaEntryTypes
import net.minecraft.item.ItemStack
import net.minecraft.registry.tag.TagKey
import net.minecraft.text.Text
import net.minecraft.util.Identifier
import moe.nea.firmament.rei.FirmamentReiPlugin.Companion.asItemEntry
import moe.nea.firmament.repo.ItemCache.asItemStack
import moe.nea.firmament.repo.RepoManager
import moe.nea.firmament.util.SkyblockId
import moe.nea.firmament.util.skyblockId

// TODO: add in extra data like pet info, into this structure
data class SBItemStack(
    val skyblockId: SkyblockId,
    val neuItem: NEUItem?,
    val stackSize: Int,
)

object SBItemEntryDefinition : EntryDefinition<SBItemStack> {
    override fun equals(o1: SBItemStack, o2: SBItemStack, context: ComparisonContext): Boolean {
        if (!context.isFuzzy) {
            if (o1.stackSize != o2.stackSize)
                return false
        }
        return o1.skyblockId == o2.skyblockId
    }

    override fun cheatsAs(entry: EntryStack<SBItemStack>?, value: SBItemStack): ItemStack {
        return value.neuItem.asItemStack()
    }

    override fun getValueType(): Class<SBItemStack> = SBItemStack::class.java
    override fun getType(): EntryType<SBItemStack> = EntryType.deferred(FirmamentReiPlugin.SKYBLOCK_ITEM_TYPE_ID)

    override fun getRenderer(): EntryRenderer<SBItemStack> = NEUItemEntryRenderer

    override fun getSerializer(): EntrySerializer<SBItemStack> {
        return NEUItemEntrySerializer
    }

    override fun getTagsFor(entry: EntryStack<SBItemStack>?, value: SBItemStack?): Stream<out TagKey<*>>? {
        return Stream.empty()
    }

    override fun asFormattedText(entry: EntryStack<SBItemStack>, value: SBItemStack): Text {
        return VanillaEntryTypes.ITEM.definition.asFormattedText(entry.asItemEntry(), value.asItemStack())
    }

    override fun hash(entry: EntryStack<SBItemStack>, value: SBItemStack, context: ComparisonContext): Long {
        // Repo items are immutable, and get replaced entirely when loaded from disk
        return value.skyblockId.hashCode() * 31L
    }

    override fun wildcard(entry: EntryStack<SBItemStack>?, value: SBItemStack): SBItemStack {
        return value.copy(stackSize = 1)
    }

    override fun normalize(entry: EntryStack<SBItemStack>?, value: SBItemStack): SBItemStack {
        return value.copy(stackSize = 1)
    }

    override fun copy(entry: EntryStack<SBItemStack>?, value: SBItemStack): SBItemStack {
        return value
    }

    override fun isEmpty(entry: EntryStack<SBItemStack>?, value: SBItemStack): Boolean {
        return value.stackSize == 0
    }

    override fun getIdentifier(entry: EntryStack<SBItemStack>?, value: SBItemStack): Identifier {
        return value.skyblockId.identifier
    }

    fun getEntry(sbItemStack: SBItemStack): EntryStack<SBItemStack> =
        EntryStack.of(this, sbItemStack)

    fun getEntry(neuItem: NEUItem?, count: Int = 1): EntryStack<SBItemStack> =
        getEntry(SBItemStack(neuItem?.skyblockId ?: SkyblockId.NULL, neuItem, 1))

    fun getEntry(skyblockId: SkyblockId, count: Int = 1): EntryStack<SBItemStack> =
        getEntry(SBItemStack(skyblockId, RepoManager.getNEUItem(skyblockId), count))

    fun getEntry(ingredient: NEUIngredient): EntryStack<SBItemStack> =
        getEntry(SkyblockId(ingredient.itemId), count = ingredient.amount.toInt())


}