package net.minecraft.world.level;

import com.mojang.serialization.Codec;
import com.mojang.serialization.Dynamic;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import net.minecraft.world.Difficulty;

public record LevelSettings(
	String levelName, GameType gameType, LevelSettings.DifficultySettings difficultySettings, boolean allowCommands, WorldDataConfiguration dataConfiguration
) {
	public static LevelSettings parse(final Dynamic<?> input, final WorldDataConfiguration loadConfig) {
		GameType gameType = GameType.byId(input.get("GameType").asInt(0));
		return new LevelSettings(
			input.get("LevelName").asString(""),
			gameType,
			(LevelSettings.DifficultySettings)input.get("difficulty_settings")
				.read(LevelSettings.DifficultySettings.CODEC)
				.result()
				.orElse(LevelSettings.DifficultySettings.DEFAULT),
			input.get("allowCommands").asBoolean(gameType == GameType.CREATIVE),
			loadConfig
		);
	}

	public LevelSettings withGameType(final GameType gameType) {
		return new LevelSettings(this.levelName, gameType, this.difficultySettings, this.allowCommands, this.dataConfiguration);
	}

	public LevelSettings withDifficulty(final Difficulty difficulty) {
		return new LevelSettings(
			this.levelName,
			this.gameType,
			new LevelSettings.DifficultySettings(difficulty, this.difficultySettings.hardcore(), this.difficultySettings.locked()),
			this.allowCommands,
			this.dataConfiguration
		);
	}

	public LevelSettings withDifficultyLock(final boolean locked) {
		return new LevelSettings(
			this.levelName,
			this.gameType,
			new LevelSettings.DifficultySettings(this.difficultySettings.difficulty(), this.difficultySettings.hardcore(), locked),
			this.allowCommands,
			this.dataConfiguration
		);
	}

	public LevelSettings withDataConfiguration(final WorldDataConfiguration dataConfiguration) {
		return new LevelSettings(this.levelName, this.gameType, this.difficultySettings, this.allowCommands, dataConfiguration);
	}

	public LevelSettings copy() {
		return new LevelSettings(this.levelName, this.gameType, this.difficultySettings, this.allowCommands, this.dataConfiguration);
	}

	public record DifficultySettings(Difficulty difficulty, boolean hardcore, boolean locked) {
		public static final LevelSettings.DifficultySettings DEFAULT = new LevelSettings.DifficultySettings(Difficulty.NORMAL, false, false);
		public static final Codec<LevelSettings.DifficultySettings> CODEC = RecordCodecBuilder.create(
			i -> i.group(
					Difficulty.CODEC.fieldOf("difficulty").forGetter(LevelSettings.DifficultySettings::difficulty),
					Codec.BOOL.fieldOf("hardcore").forGetter(LevelSettings.DifficultySettings::hardcore),
					Codec.BOOL.fieldOf("locked").forGetter(LevelSettings.DifficultySettings::locked)
				)
				.apply(i, LevelSettings.DifficultySettings::new)
		);
	}
}