package com.hypixel.hytale.builtin.hytalegenerator.assets.positionproviders;

import com.hypixel.hytale.assetstore.AssetExtraInfo;
import com.hypixel.hytale.assetstore.codec.AssetBuilderCodec;
import com.hypixel.hytale.assetstore.map.DefaultAssetMap;
import com.hypixel.hytale.assetstore.map.JsonAssetWithMap;
import com.hypixel.hytale.builtin.hytalegenerator.assets.density.ConstantDensityAsset;
import com.hypixel.hytale.builtin.hytalegenerator.assets.density.DensityAsset;
import com.hypixel.hytale.builtin.hytalegenerator.density.Density;
import com.hypixel.hytale.builtin.hytalegenerator.positionproviders.FieldFunctionPositionProvider;
import com.hypixel.hytale.builtin.hytalegenerator.positionproviders.PositionProvider;
import com.hypixel.hytale.codec.Codec;
import com.hypixel.hytale.codec.KeyedCodec;
import com.hypixel.hytale.codec.builder.BuilderCodec;
import com.hypixel.hytale.codec.codecs.array.ArrayCodec;
import javax.annotation.Nonnull;

public class FieldFunctionPositionProviderAsset extends PositionProviderAsset {
   private static final FieldFunctionPositionProviderAsset.DelimiterAsset[] EMPTY_DELIMITER_ASSETS = new FieldFunctionPositionProviderAsset.DelimiterAsset[0];
   public static final BuilderCodec<FieldFunctionPositionProviderAsset> CODEC = BuilderCodec.builder(
         FieldFunctionPositionProviderAsset.class, FieldFunctionPositionProviderAsset::new, PositionProviderAsset.ABSTRACT_CODEC
      )
      .append(
         new KeyedCodec<>(
            "Delimiters",
            new ArrayCodec<>(FieldFunctionPositionProviderAsset.DelimiterAsset.CODEC, FieldFunctionPositionProviderAsset.DelimiterAsset[]::new),
            true
         ),
         (asset, v) -> asset.delimiterAssets = v,
         asset -> asset.delimiterAssets
      )
      .add()
      .append(new KeyedCodec<>("FieldFunction", DensityAsset.CODEC, true), (asset, v) -> asset.densityAsset = v, asset -> asset.densityAsset)
      .add()
      .append(
         new KeyedCodec<>("Positions", PositionProviderAsset.CODEC, true), (asset, v) -> asset.positionProviderAsset = v, asset -> asset.positionProviderAsset
      )
      .add()
      .build();
   private FieldFunctionPositionProviderAsset.DelimiterAsset[] delimiterAssets = EMPTY_DELIMITER_ASSETS;
   private DensityAsset densityAsset = new ConstantDensityAsset();
   private PositionProviderAsset positionProviderAsset = new ListPositionProviderAsset();

   @Nonnull
   @Override
   public PositionProvider build(@Nonnull PositionProviderAsset.Argument argument) {
      if (super.skip()) {
         return PositionProvider.noPositionProvider();
      } else {
         Density functionTree = this.densityAsset.build(DensityAsset.from(argument));
         PositionProvider positionProvider = this.positionProviderAsset.build(argument);
         FieldFunctionPositionProvider out = new FieldFunctionPositionProvider(functionTree, positionProvider);

         for (FieldFunctionPositionProviderAsset.DelimiterAsset asset : this.delimiterAssets) {
            out.addDelimiter(asset.min, asset.max);
         }

         return out;
      }
   }

   @Override
   public void cleanUp() {
      this.densityAsset.cleanUp();
      this.positionProviderAsset.cleanUp();
   }

   public static class DelimiterAsset implements JsonAssetWithMap<String, DefaultAssetMap<String, FieldFunctionPositionProviderAsset.DelimiterAsset>> {
      public static final AssetBuilderCodec<String, FieldFunctionPositionProviderAsset.DelimiterAsset> CODEC = AssetBuilderCodec.builder(
            FieldFunctionPositionProviderAsset.DelimiterAsset.class,
            FieldFunctionPositionProviderAsset.DelimiterAsset::new,
            Codec.STRING,
            (asset, id) -> asset.id = id,
            config -> config.id,
            (config, data) -> config.data = data,
            config -> config.data
         )
         .append(new KeyedCodec<>("Min", Codec.DOUBLE, true), (t, v) -> t.min = v, t -> t.min)
         .add()
         .append(new KeyedCodec<>("Max", Codec.DOUBLE, true), (t, v) -> t.max = v, t -> t.max)
         .add()
         .build();
      private String id;
      private AssetExtraInfo.Data data;
      private double min = 0.0;
      private double max = 0.0;

      public String getId() {
         return this.id;
      }
   }
}