package net.minecraft.world.level.saveddata.maps;

import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import com.mojang.serialization.codecs.RecordCodecBuilder.Instance;
import net.minecraft.util.datafix.DataFixTypes;
import net.minecraft.world.level.saveddata.SavedData;
import net.minecraft.world.level.saveddata.SavedDataType;

public class MapIndex extends SavedData {
    private static final int NO_MAP_ID = -1;
    public static final Codec<MapIndex> CODEC = RecordCodecBuilder.create(
        p_394322_ -> p_394322_.group(Codec.INT.optionalFieldOf("map", -1).forGetter(p_396791_ -> p_396791_.lastMapId)).apply(p_394322_, MapIndex::new)
    );
    public static final SavedDataType<MapIndex> TYPE = new SavedDataType<>("idcounts", MapIndex::new, CODEC, DataFixTypes.SAVED_DATA_MAP_INDEX);
    private int lastMapId;

    public MapIndex() {
        this(-1);
    }

    public MapIndex(int p_391962_) {
        this.lastMapId = p_391962_;
    }

    public MapId getNextMapId() {
        MapId mapid = new MapId(++this.lastMapId);
        this.setDirty();
        return mapid;
    }
}