Sack Item Autocomplete

src/main/java/de/hysky/skyblocker/mixins/CommandTreeS2CPacketMixin.java

@@ -3,6 +3,8 @@
 import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
 import com.mojang.brigadier.tree.CommandNode;
 import com.mojang.brigadier.tree.LiteralCommandNode;
+
+import de.hysky.skyblocker.skyblock.SackItemAutocomplete;
 import de.hysky.skyblocker.skyblock.WarpAutocomplete;
 import de.hysky.skyblocker.utils.Utils;
 import net.minecraft.command.CommandSource;
@@ -11,11 +13,18 @@
 
 @Mixin(targets = "net.minecraft.network.packet.s2c.play.CommandTreeS2CPacket$CommandTree")
 public class CommandTreeS2CPacketMixin {
-    @ModifyExpressionValue(method = "getNode", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/packet/s2c/play/CommandTreeS2CPacket$CommandTree;getNode(I)Lcom/mojang/brigadier/tree/CommandNode;", ordinal = 1))
-    public CommandNode<? extends CommandSource> modifyCommandSuggestions(CommandNode<CommandSource> original) {
-        if (Utils.isOnHypixel() && WarpAutocomplete.commandNode != null && original instanceof LiteralCommandNode<?> literalCommandNode && literalCommandNode.getLiteral().equals("warp")) {
-            return WarpAutocomplete.commandNode;
-        }
-        return original;
-    }
+	@ModifyExpressionValue(method = "getNode", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/packet/s2c/play/CommandTreeS2CPacket$CommandTree;getNode(I)Lcom/mojang/brigadier/tree/CommandNode;", ordinal = 1))
+	public CommandNode<? extends CommandSource> modifyCommandSuggestions(CommandNode<CommandSource> original) {
+		if (Utils.isOnHypixel() && original instanceof LiteralCommandNode<?> literalCommandNode) {
+			return switch (literalCommandNode.getLiteral()) {
+				case String s when s.equals("warp") && WarpAutocomplete.commandNode != null -> WarpAutocomplete.commandNode;
+				case String s when s.equals("getfromsacks") && SackItemAutocomplete.longCommandNode != null -> SackItemAutocomplete.longCommandNode;
+				case String s when s.equals("gfs") && SackItemAutocomplete.shortCommandNode != null -> SackItemAutocomplete.shortCommandNode;
+
+				default -> original;
+			};
+		}
+
+		return original;
+	}
 }

src/main/java/de/hysky/skyblocker/skyblock/SackItemAutocomplete.java

@@ -0,0 +1,79 @@
+package de.hysky.skyblocker.skyblock;
+
+import static net.fabricmc.fabric.api.client.command.v2.ClientCommandManager.argument;
+import static net.fabricmc.fabric.api.client.command.v2.ClientCommandManager.literal;
+
+import java.io.InputStream;
+import java.util.List;
+import java.util.Set;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+import org.jetbrains.annotations.Nullable;
+import org.slf4j.Logger;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.mojang.brigadier.arguments.StringArgumentType;
+import com.mojang.brigadier.tree.LiteralCommandNode;
+import com.mojang.logging.LogUtils;
+
+import de.hysky.skyblocker.annotations.Init;
+import de.hysky.skyblocker.utils.NEURepoManager;
+import de.hysky.skyblocker.utils.Utils;
+import io.github.moulberry.repo.data.NEUItem;
+import net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource;
+import net.minecraft.command.CommandSource;
+import net.minecraft.util.Formatting;
+
+public class SackItemAutocomplete {
+	private static final Logger LOGGER = LogUtils.getLogger();
+	private static final Pattern BAD_CHARACTERS = Pattern.compile("[α☘☠✎✧❁❂❈❤⸕]");
+
+	@Nullable
+	public static LiteralCommandNode<FabricClientCommandSource> longCommandNode;
+	@Nullable
+	public static LiteralCommandNode<FabricClientCommandSource> shortCommandNode;
+
+	@Init
+	public static void init() {
+		NEURepoManager.runAsyncAfterLoad(SackItemAutocomplete::loadSackItems);
+	}
+
+	private static void loadSackItems() {
+		try (InputStream stream = NEURepoManager.NEU_REPO.file("constants/sacks.json").stream()) {
+			JsonObject sacks = JsonParser.parseString(new String(stream.readAllBytes())).getAsJsonObject().getAsJsonObject("sacks");
+
+			Set<String> sackItemIds = sacks.entrySet().stream()
+					.map(entry -> entry.getValue().getAsJsonObject())
+					.map(sack -> sack.getAsJsonArray("contents"))
+					.map(JsonArray::asList)
+					.flatMap(List::stream)
+					.map(JsonElement::getAsString)
+					.collect(Collectors.toUnmodifiableSet());
+			Set<String> sackItems = sackItemIds.stream()
+					.map(neuId -> {
+						NEUItem stack = NEURepoManager.NEU_REPO.getItems().getItemBySkyblockId(neuId);
+
+						return stack != null ? Formatting.strip(stack.getDisplayName()) : neuId;
+					})
+					.map(name -> BAD_CHARACTERS.matcher(name).replaceAll("").trim())
+					.collect(Collectors.toUnmodifiableSet());
+
+			longCommandNode = createCommandNode("getfromsacks", sackItems);
+			shortCommandNode = createCommandNode("gfs", sackItems);
+		} catch (Exception e) {
+			LOGGER.error("[Skyblocker Sack Item Autocomplete] Failed to load sacks data from the NEU Repo.", e);
+		}
+	}
+
+	private static LiteralCommandNode<FabricClientCommandSource> createCommandNode(String command, Set<String> sackItems) {
+		return literal(command)
+				.requires(fccs -> Utils.isOnSkyblock())
+				.then(argument("item", StringArgumentType.greedyString()) //I guess this can also cover the input of the amount
+						.suggests((context, builder) -> CommandSource.suggestMatching(sackItems, builder)))
+				.build();
+	}
+}