src/game/java/net/minecraft/commands/arguments/TimeArgument.java

package net.minecraft.commands.arguments;

import com.google.gson.JsonObject;
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.Dynamic2CommandExceptionType;
import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import it.unimi.dsi.fastutil.objects.Object2IntMap;
import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
import java.util.Arrays;
import java.util.Collection;
import java.util.concurrent.CompletableFuture;
import net.minecraft.commands.CommandBuildContext;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.commands.synchronization.ArgumentTypeInfo;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.network.chat.Component;

public class TimeArgument implements ArgumentType<Integer> {
    private static final Collection<String> EXAMPLES = Arrays.asList("0d", "0s", "0t", "0");
    private static final SimpleCommandExceptionType ERROR_INVALID_UNIT = new SimpleCommandExceptionType(Component.translatable("argument.time.invalid_unit"));
    private static final Dynamic2CommandExceptionType ERROR_TICK_COUNT_TOO_LOW = new Dynamic2CommandExceptionType(
        (p_308389_, p_308390_) -> Component.translatableEscape("argument.time.tick_count_too_low", p_308390_, p_308389_)
    );
    private static final Object2IntMap<String> UNITS = new Object2IntOpenHashMap<>();
    final int minimum;

    private TimeArgument(int p_265107_) {
        this.minimum = p_265107_;
    }

    public static TimeArgument time() {
        return new TimeArgument(0);
    }

    public static TimeArgument time(int p_265722_) {
        return new TimeArgument(p_265722_);
    }

    public Integer parse(StringReader p_113039_) throws CommandSyntaxException {
        float f = p_113039_.readFloat();
        String s = p_113039_.readUnquotedString();
        int i = UNITS.getOrDefault(s, 0);
        if (i == 0) {
            throw ERROR_INVALID_UNIT.createWithContext(p_113039_);
        } else {
            int j = Math.round(f * (float)i);
            if (j < this.minimum) {
                throw ERROR_TICK_COUNT_TOO_LOW.createWithContext(p_113039_, j, this.minimum);
            } else {
                return j;
            }
        }
    }

    @Override
    public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> p_113044_, SuggestionsBuilder p_113045_) {
        StringReader stringreader = new StringReader(p_113045_.getRemaining());

        try {
            stringreader.readFloat();
        } catch (CommandSyntaxException commandsyntaxexception) {
            return p_113045_.buildFuture();
        }

        return SharedSuggestionProvider.suggest(UNITS.keySet(), p_113045_.createOffset(p_113045_.getStart() + stringreader.getCursor()));
    }

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

    static {
        UNITS.put("d", 24000);
        UNITS.put("s", 20);
        UNITS.put("t", 1);
        UNITS.put("", 1);
    }

    public static class Info implements ArgumentTypeInfo<TimeArgument, TimeArgument.Info.Template> {
        public void serializeToNetwork(TimeArgument.Info.Template p_265434_, FriendlyByteBuf p_265320_) {
            p_265320_.writeInt(p_265434_.min);
        }

        public TimeArgument.Info.Template deserializeFromNetwork(FriendlyByteBuf p_265324_) {
            int i = p_265324_.readInt();
            return new TimeArgument.Info.Template(i);
        }

        public void serializeToJson(TimeArgument.Info.Template p_265110_, JsonObject p_265629_) {
            p_265629_.addProperty("min", p_265110_.min);
        }

        public TimeArgument.Info.Template unpack(TimeArgument p_265544_) {
            return new TimeArgument.Info.Template(p_265544_.minimum);
        }

        public final class Template implements ArgumentTypeInfo.Template<TimeArgument> {
            final int min;

            Template(final int p_265096_) {
                this.min = p_265096_;
            }

            public TimeArgument instantiate(CommandBuildContext p_265466_) {
                return TimeArgument.time(this.min);
            }

            @Override
            public ArgumentTypeInfo<TimeArgument, ?> type() {
                return Info.this;
            }
        }
    }
}