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.network.chat.Component;
import net.minecraft.world.phys.Vec2;
import net.minecraft.world.phys.Vec3;

public class Vec2Argument implements ArgumentType<Coordinates> {
    private static final Collection<String> EXAMPLES = Arrays.asList("0 0", "~ ~", "0.1 -0.5", "~1 ~-2");
    public static final SimpleCommandExceptionType ERROR_NOT_COMPLETE = new SimpleCommandExceptionType(Component.translatable("argument.pos2d.incomplete"));
    private final boolean centerCorrect;

    public Vec2Argument(boolean p_120821_) {
        this.centerCorrect = p_120821_;
    }

    public static Vec2Argument vec2() {
        return new Vec2Argument(true);
    }

    public static Vec2Argument vec2(boolean p_174955_) {
        return new Vec2Argument(p_174955_);
    }

    public static Vec2 getVec2(CommandContext<CommandSourceStack> p_120826_, String p_120827_) {
        Vec3 vec3 = p_120826_.getArgument(p_120827_, Coordinates.class).getPosition(p_120826_.getSource());
        return new Vec2((float)vec3.x, (float)vec3.z);
    }

    public Coordinates parse(StringReader p_120824_) throws CommandSyntaxException {
        int i = p_120824_.getCursor();
        if (!p_120824_.canRead()) {
            throw ERROR_NOT_COMPLETE.createWithContext(p_120824_);
        } else {
            WorldCoordinate worldcoordinate = WorldCoordinate.parseDouble(p_120824_, this.centerCorrect);
            if (p_120824_.canRead() && p_120824_.peek() == ' ') {
                p_120824_.skip();
                WorldCoordinate worldcoordinate1 = WorldCoordinate.parseDouble(p_120824_, this.centerCorrect);
                return new WorldCoordinates(worldcoordinate, new WorldCoordinate(true, 0.0), worldcoordinate1);
            } else {
                p_120824_.setCursor(i);
                throw ERROR_NOT_COMPLETE.createWithContext(p_120824_);
            }
        }
    }

    @Override
    public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> p_120830_, SuggestionsBuilder p_120831_) {
        if (!(p_120830_.getSource() instanceof SharedSuggestionProvider)) {
            return Suggestions.empty();
        } else {
            String s = p_120831_.getRemaining();
            Collection<SharedSuggestionProvider.TextCoordinates> collection;
            if (!s.isEmpty() && s.charAt(0) == '^') {
                collection = Collections.singleton(SharedSuggestionProvider.TextCoordinates.DEFAULT_LOCAL);
            } else {
                collection = ((SharedSuggestionProvider)p_120830_.getSource()).getAbsoluteCoordinates();
            }

            return SharedSuggestionProvider.suggest2DCoordinates(s, collection, p_120831_, Commands.createValidator(this::parse));
        }
    }

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