src/main/java/com/irtimaled/bbor/client/commands/HexColorArgument.java

   1 package com.irtimaled.bbor.client.commands;
   2
   3 import com.irtimaled.bbor.client.config.HexColor;
   4 import com.mojang.brigadier.LiteralMessage;
   5 import com.mojang.brigadier.StringReader;
   6 import com.mojang.brigadier.arguments.ArgumentType;
   7 import com.mojang.brigadier.context.CommandContext;
   8 import com.mojang.brigadier.exceptions.CommandSyntaxException;
   9 import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
  10 import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
  11 import com.mojang.brigadier.suggestion.Suggestions;
  12 import com.mojang.brigadier.suggestion.SuggestionsBuilder;
  13
  14 import java.util.Arrays;
  15 import java.util.Collection;
  16 import java.util.List;
  17 import java.util.concurrent.CompletableFuture;
  18
  19 public class HexColorArgument implements ArgumentType<HexColor> {
  20     private static final List<String> EXAMPLES = Arrays.asList("#000000", "#ffffff");
  21     public static final DynamicCommandExceptionType INVALID_HEX_COLOR = new DynamicCommandExceptionType(v -> new LiteralMessage("Invalid hex color, expected six digit hex color starting with # but found '" + v + "'"));
  22     public static final SimpleCommandExceptionType EXPECTED_HEX_COLOR = new SimpleCommandExceptionType(new LiteralMessage("Expected hex color"));
  23
  24     @Override
  25     public HexColor parse(StringReader reader) throws CommandSyntaxException {
  26         String value = reader.getRemaining().split(" ")[0].toLowerCase();
  27         if (value.isEmpty()) {
  28             throw EXPECTED_HEX_COLOR.createWithContext(reader);
  29         }
  30
  31         HexColor color = HexColor.from(value);
  32         if (color != null) {
  33             reader.setCursor(reader.getCursor() + 7);
  34             return color;
  35         }
  36
  37         throw INVALID_HEX_COLOR.createWithContext(reader, value);
  38     }
  39
  40     @Override
  41     public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> context, SuggestionsBuilder builder) {
  42         if (builder.getRemaining().length() == 0) builder.suggest("#");
  43         return builder.buildFuture();
  44     }
  45
  46     @Override
  47     public Collection<String> getExamples() {
  48         return EXAMPLES;
  49     }
  50 }