import net.minecraft.world.gen.ChunkProviderSettings;

import cubicchunks.worldgen.generator.config.JsonConfig;
import cubicchunks.worldgen.generator.config.JsonConfigInitializer;
import cubicchunks.worldgen.generator.config.Value;

import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_DEPTH_NOISE_FACTOR;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_DEPTH_NOISE_FREQUENCY;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_LOWHIGH_NOISE_FREQUENCY;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_SELECTOR_NOISE_FACTOR;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_SELECTOR_NOISE_FREQUENCY_XZ;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_SELECTOR_NOISE_FREQUENCY_Y;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.VANILLA_SELECTOR_NOISE_OFFSET;
import static cubicchunks.worldgen.generator.custom.ConversionUtils.frequencyFromVanilla;

@JsonConfig
public class CustomGeneratorSettings {
    @Value(floatValue = 1) public float heightVariationFactor;
    @Value(floatValue = 0) public float heightVariationOffset;
    @Value(floatValue = 1) public float heightFactor;
    @Value(floatValue = 0) public float heightOffset;

    @Value(floatValue = VANILLA_DEPTH_NOISE_FACTOR) public float depthNoiseFactor;
    @Value(floatValue = 0) public float depthNoiseOffset;
    @Value(floatValue = VANILLA_DEPTH_NOISE_FREQUENCY) public float depthNoiseFrequencyX;
    @Value(floatValue = VANILLA_DEPTH_NOISE_FREQUENCY) public float depthNoiseFrequencyZ;
    @Value(intValue = 16) public int depthNoiseOctaves;

    @Value(floatValue = VANILLA_SELECTOR_NOISE_FACTOR) public float selectorNoiseFactor;
    @Value(floatValue = VANILLA_SELECTOR_NOISE_OFFSET) public float selectorNoiseOffset;
    @Value(floatValue = VANILLA_SELECTOR_NOISE_FREQUENCY_XZ) public float selectorNoiseFrequencyX;
    @Value(floatValue = VANILLA_SELECTOR_NOISE_FREQUENCY_Y) public float selectorNoiseFrequencyY;
    @Value(floatValue = VANILLA_SELECTOR_NOISE_FREQUENCY_XZ) public float selectorNoiseFrequencyZ;
    @Value(intValue = 8) public int selectorNoiseOctaves;

    @Value(floatValue = 1) public float lowNoiseFactor;
    @Value(floatValue = 0) public float lowNoiseOffset;
    @Value(floatValue = VANILLA_LOWHIGH_NOISE_FREQUENCY) public float lowNoiseFrequencyX;
    @Value(floatValue = VANILLA_LOWHIGH_NOISE_FREQUENCY) public float lowNoiseFrequencyY;
    @Value(floatValue = VANILLA_LOWHIGH_NOISE_FREQUENCY) public float lowNoiseFrequencyZ;
    @Value(intValue = 16) public int lowNoiseOctaves;

    @Value(floatValue = 1) public float highNoiseFactor;
    @Value(floatValue = 0) public float highNoiseOffset;
    @Value(floatValue = VANILLA_LOWHIGH_NOISE_FREQUENCY) public float highNoiseFrequencyX;
    @Value(floatValue = VANILLA_LOWHIGH_NOISE_FREQUENCY) public float highNoiseFrequencyY;
    @Value(floatValue = VANILLA_LOWHIGH_NOISE_FREQUENCY) public float highNoiseFrequencyZ;
    @Value(intValue = 16) public int highNoiseOctaves;

    public CustomGeneratorSettings() {
    }

    public static CustomGeneratorSettings defaults() {
        return new JsonConfigInitializer<>(CustomGeneratorSettings.class).defaults().build();
    }

    public static CustomGeneratorSettings fromVanilla(ChunkProviderSettings settings) {
        CustomGeneratorSettings obj = defaults();

        obj.lowNoiseFactor = 512.0f/settings.lowerLimitScale;
        obj.highNoiseFactor = 512.0f/settings.upperLimitScale;

        obj.depthNoiseFrequencyX = frequencyFromVanilla(settings.depthNoiseScaleX, 16);
        obj.depthNoiseFrequencyZ = frequencyFromVanilla(settings.depthNoiseScaleZ, 16);
        // settings.depthNoiseScaleExponent is ignored by vanilla

        obj.selectorNoiseFrequencyX = frequencyFromVanilla(settings.coordinateScale/settings.mainNoiseScaleX, 8);
        obj.selectorNoiseFrequencyY = frequencyFromVanilla(settings.heightScale/settings.mainNoiseScaleY, 8);
        obj.selectorNoiseFrequencyZ = frequencyFromVanilla(settings.coordinateScale/settings.mainNoiseScaleZ, 8);

        obj.lowNoiseFrequencyX = frequencyFromVanilla(settings.coordinateScale, 16);
        obj.lowNoiseFrequencyY = frequencyFromVanilla(settings.heightScale, 16);
        obj.lowNoiseFrequencyZ = frequencyFromVanilla(settings.coordinateScale, 16);

        obj.highNoiseFrequencyX = frequencyFromVanilla(settings.coordinateScale, 16);
        obj.highNoiseFrequencyY = frequencyFromVanilla(settings.heightScale, 16);
        obj.highNoiseFrequencyZ = frequencyFromVanilla(settings.coordinateScale, 16);

        return obj;
    }
}