package com.seibel.lod.util;

import com.seibel.lod.enums.DistanceGenerationMode;
import com.seibel.lod.enums.LodDetail;
import com.seibel.lod.handlers.LodConfig;
import net.minecraft.client.Minecraft;

public class DetailDistanceUtil
{
    private static double genMultiplier = 1.25;
    private static double treeGenMultiplier = 1.5;
    private static double treeCutMultiplier = 1.25;
    private static int minDetail = LodConfig.CLIENT.maxGenerationDetail.get().detailLevel;
    private static int maxDetail = LodUtil.REGION_DETAIL_LEVEL + 1;
    private static int minDistance = 0;
    private static int maxDistance = LodConfig.CLIENT.lodChunkRenderDistance.get() * 16;


   private static  DistanceGenerationMode[] distancesGenerators = {
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE,
            DistanceGenerationMode.SURFACE};

    /*private static  DistanceGenerationMode[] distancesGenerators = {
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT,
            DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT};*/

    private static LodDetail[] lodDetails = {
            LodDetail.FULL,
            LodDetail.HALF,
            LodDetail.QUAD,
            LodDetail.DOUBLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE};

    private static LodDetail[] lodDetailsCut = {
            LodDetail.FULL,
            LodDetail.HALF,
            LodDetail.QUAD,
            LodDetail.DOUBLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE,
            LodDetail.SINGLE};

    public static int getDistanceRendering(int detail)
    {
        int initial;
        int distance = 0;
        if(detail <= minDetail)
            return minDistance;
        if(detail == maxDetail)
            return maxDistance*2;
        if(detail == maxDetail+1)
            return maxDistance*3;
        switch (LodConfig.CLIENT.lodDistanceCalculatorType.get())
        {
            case LINEAR:
                initial = LodConfig.CLIENT.lodQuality.get() * 128;
                return (detail * initial);
            case QUADRATIC:
                initial = LodConfig.CLIENT.lodQuality.get() * 128;
                return (int) (Math.pow(2, detail) * initial);
            case RENDER_DEPENDANT:
                int realRenderDistance = Minecraft.getInstance().options.renderDistance * 16;
                int border = 64;
                byte detailAtBorder = (byte) 4;
                if(detail > detailAtBorder){
                    return (detail * (border-realRenderDistance)/detailAtBorder + realRenderDistance);
                }else{
                    return ((maxDetail - detail) * (maxDistance-border)/(maxDetail - detailAtBorder) + border);
                }
        }
        return distance;
    }

    public static int getDistanceGeneration(int detail)
    {
        if(detail == maxDetail)
            return maxDistance;
        return (int) (getDistanceRendering(detail) * genMultiplier);
    }
    public static int getDistanceTreeCut(int detail)
    {
        if(detail == maxDetail)
            return maxDistance;
        return (int) (getDistanceRendering(detail) * treeCutMultiplier);
    }
    public static int getDistanceTreeGen(int detail)
    {
        if(detail == maxDetail)
            return maxDistance;
        return (int) (getDistanceRendering(detail) * treeGenMultiplier);
    }

    public static DistanceGenerationMode getDistanceGenerationMode(int detail)
    {
        return distancesGenerators[detail];
    }

    public static LodDetail getLodDetail(int detail)
    {
        if(detail < minDetail)
        {
            return lodDetails[minDetail];
        }
        else
        {
            return lodDetails[detail];
        }
    }


    public static byte getCutLodDetail(int detail)
    {
        if(detail < minDetail)
        {
            return lodDetailsCut[minDetail].detailLevel;
        }
        else if(detail == maxDetail)
        {
            return LodUtil.REGION_DETAIL_LEVEL;
        }
        else
        {
            return lodDetailsCut[detail].detailLevel;
        }
    }
}