package net.minecraft.commands.arguments.coordinates;

import com.mojang.brigadier.StringReader;
import com.mojang.brigadier.arguments.ArgumentType;
import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.CompletableFuture;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.Commands;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.core.BlockPos;
import net.minecraft.network.chat.Component;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.world.level.Level;

public class BlockPosArgument implements ArgumentType<Coordinates> {
    private static final Collection<String> EXAMPLES = Arrays.asList("0 0 0", "~ ~ ~", "^ ^ ^", "^1 ^ ^-5", "~0.5 ~1 ~-5");
    public static final SimpleCommandExceptionType ERROR_NOT_LOADED = new SimpleCommandExceptionType(Component.translatable("argument.pos.unloaded"));
    public static final SimpleCommandExceptionType ERROR_OUT_OF_WORLD = new SimpleCommandExceptionType(Component.translatable("argument.pos.outofworld"));
    public static final SimpleCommandExceptionType ERROR_OUT_OF_BOUNDS = new SimpleCommandExceptionType(Component.translatable("argument.pos.outofbounds"));

    public static BlockPosArgument blockPos() {
        return new BlockPosArgument();
    }

    public static BlockPos getLoadedBlockPos(CommandContext<CommandSourceStack> p_118243_, String p_118244_) throws CommandSyntaxException {
        ServerLevel serverlevel = p_118243_.getSource().getLevel();
        return getLoadedBlockPos(p_118243_, serverlevel, p_118244_);
    }

    public static BlockPos getLoadedBlockPos(CommandContext<CommandSourceStack> p_265283_, ServerLevel p_265219_, String p_265677_) throws CommandSyntaxException {
        BlockPos blockpos = getBlockPos(p_265283_, p_265677_);
        if (!p_265219_.hasChunkAt(blockpos)) {
            throw ERROR_NOT_LOADED.create();
        } else if (!p_265219_.isInWorldBounds(blockpos)) {
            throw ERROR_OUT_OF_WORLD.create();
        } else {
            return blockpos;
        }
    }

    public static BlockPos getBlockPos(CommandContext<CommandSourceStack> p_265651_, String p_265039_) {
        return p_265651_.getArgument(p_265039_, Coordinates.class).getBlockPos(p_265651_.getSource());
    }

    public static BlockPos getSpawnablePos(CommandContext<CommandSourceStack> p_174396_, String p_174397_) throws CommandSyntaxException {
        BlockPos blockpos = getBlockPos(p_174396_, p_174397_);
        if (!Level.isInSpawnableBounds(blockpos)) {
            throw ERROR_OUT_OF_BOUNDS.create();
        } else {
            return blockpos;
        }
    }

    public Coordinates parse(StringReader p_118241_) throws CommandSyntaxException {
        return (Coordinates)(p_118241_.canRead() && p_118241_.peek() == '^' ? LocalCoordinates.parse(p_118241_) : WorldCoordinates.parseInt(p_118241_));
    }

    @Override
    public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> p_118250_, SuggestionsBuilder p_118251_) {
        if (!(p_118250_.getSource() instanceof SharedSuggestionProvider)) {
            return Suggestions.empty();
        } else {
            String s = p_118251_.getRemaining();
            Collection<SharedSuggestionProvider.TextCoordinates> collection;
            if (!s.isEmpty() && s.charAt(0) == '^') {
                collection = Collections.singleton(SharedSuggestionProvider.TextCoordinates.DEFAULT_LOCAL);
            } else {
                collection = ((SharedSuggestionProvider)p_118250_.getSource()).getRelevantCoordinates();
            }

            return SharedSuggestionProvider.suggestCoordinates(s, collection, p_118251_, Commands.createValidator(this::parse));
        }
    }

    @Override
    public Collection<String> getExamples() {
        return EXAMPLES;
    }
}