package net.minecraft.gametest.framework;

import com.mojang.brigadier.CommandDispatcher;
import com.mojang.brigadier.arguments.BoolArgumentType;
import com.mojang.brigadier.arguments.IntegerArgumentType;
import com.mojang.brigadier.arguments.StringArgumentType;
import com.mojang.brigadier.builder.ArgumentBuilder;
import com.mojang.brigadier.builder.LiteralArgumentBuilder;
import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.Dynamic3CommandExceptionType;
import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.function.Function;
import java.util.stream.Stream;
import net.minecraft.ChatFormatting;
import net.minecraft.SharedConstants;
import net.minecraft.commands.CommandBuildContext;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.Commands;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.commands.arguments.ResourceArgument;
import net.minecraft.commands.arguments.ResourceLocationArgument;
import net.minecraft.commands.arguments.ResourceSelectorArgument;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.core.Holder;
import net.minecraft.core.Vec3i;
import net.minecraft.core.Holder.Reference;
import net.minecraft.core.registries.Registries;
import net.minecraft.network.chat.ClickEvent;
import net.minecraft.network.chat.Component;
import net.minecraft.network.chat.ComponentUtils;
import net.minecraft.network.chat.HoverEvent;
import net.minecraft.network.chat.MutableComponent;
import net.minecraft.network.chat.Style;
import net.minecraft.network.protocol.game.DebugPackets;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.commands.InCommandFunction;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.Mth;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.Rotation;
import net.minecraft.world.level.block.entity.BlockEntityType;
import net.minecraft.world.level.block.entity.TestInstanceBlockEntity;
import net.minecraft.world.level.levelgen.Heightmap;
import net.minecraft.world.level.levelgen.structure.BoundingBox;
import net.minecraft.world.phys.BlockHitResult;
import org.apache.commons.lang3.mutable.MutableInt;

public class TestCommand {
	public static final int TEST_NEARBY_SEARCH_RADIUS = 15;
	public static final int TEST_FULL_SEARCH_RADIUS = 200;
	public static final int VERIFY_TEST_GRID_AXIS_SIZE = 10;
	public static final int VERIFY_TEST_BATCH_SIZE = 100;
	private static final int DEFAULT_CLEAR_RADIUS = 200;
	private static final int MAX_CLEAR_RADIUS = 1024;
	private static final int TEST_POS_Z_OFFSET_FROM_PLAYER = 3;
	private static final int SHOW_POS_DURATION_MS = 10000;
	private static final int DEFAULT_X_SIZE = 5;
	private static final int DEFAULT_Y_SIZE = 5;
	private static final int DEFAULT_Z_SIZE = 5;
	private static final SimpleCommandExceptionType CLEAR_NO_TESTS = new SimpleCommandExceptionType(Component.translatable("commands.test.clear.error.no_tests"));
	private static final SimpleCommandExceptionType RESET_NO_TESTS = new SimpleCommandExceptionType(Component.translatable("commands.test.reset.error.no_tests"));
	private static final SimpleCommandExceptionType TEST_INSTANCE_COULD_NOT_BE_FOUND = new SimpleCommandExceptionType(
		Component.translatable("commands.test.error.test_instance_not_found")
	);
	private static final SimpleCommandExceptionType NO_STRUCTURES_TO_EXPORT = new SimpleCommandExceptionType(
		Component.literal("Could not find any structures to export")
	);
	private static final SimpleCommandExceptionType NO_TEST_INSTANCES = new SimpleCommandExceptionType(
		Component.translatable("commands.test.error.no_test_instances")
	);
	private static final Dynamic3CommandExceptionType NO_TEST_CONTAINING = new Dynamic3CommandExceptionType(
		(object, object2, object3) -> Component.translatableEscape("commands.test.error.no_test_containing_pos", object, object2, object3)
	);
	private static final DynamicCommandExceptionType TOO_LARGE = new DynamicCommandExceptionType(
		object -> Component.translatableEscape("commands.test.error.too_large", object)
	);

	private static int reset(TestFinder testFinder) throws CommandSyntaxException {
		stopTests();
		int i = toGameTestInfos(testFinder.source(), RetryOptions.noRetries(), testFinder)
			.map(gameTestInfo -> resetGameTestInfo(testFinder.source(), gameTestInfo))
			.toList()
			.size();
		if (i == 0) {
			throw CLEAR_NO_TESTS.create();
		} else {
			testFinder.source().sendSuccess(() -> Component.translatable("commands.test.reset.success", i), true);
			return i;
		}
	}

	private static int clear(TestFinder testFinder) throws CommandSyntaxException {
		stopTests();
		CommandSourceStack commandSourceStack = testFinder.source();
		ServerLevel serverLevel = commandSourceStack.getLevel();
		GameTestRunner.clearMarkers(serverLevel);
		List<BoundingBox> list = testFinder.findTestPos()
			.flatMap(blockPos -> serverLevel.getBlockEntity(blockPos, BlockEntityType.TEST_INSTANCE_BLOCK).stream())
			.map(TestInstanceBlockEntity::getStructureBoundingBox)
			.toList();
		list.forEach(boundingBox -> StructureUtils.clearSpaceForStructure(boundingBox, serverLevel));
		if (list.isEmpty()) {
			throw CLEAR_NO_TESTS.create();
		} else {
			commandSourceStack.sendSuccess(() -> Component.translatable("commands.test.clear.success", list.size()), true);
			return list.size();
		}
	}

	private static int export(TestFinder testFinder) throws CommandSyntaxException {
		CommandSourceStack commandSourceStack = testFinder.source();
		ServerLevel serverLevel = commandSourceStack.getLevel();
		int i = 0;
		boolean bl = true;

		for (Iterator<BlockPos> iterator = testFinder.findTestPos().iterator(); iterator.hasNext(); i++) {
			BlockPos blockPos = (BlockPos)iterator.next();
			if (!(serverLevel.getBlockEntity(blockPos) instanceof TestInstanceBlockEntity testInstanceBlockEntity)) {
				throw TEST_INSTANCE_COULD_NOT_BE_FOUND.create();
			}

			if (!testInstanceBlockEntity.exportTest(commandSourceStack::sendSystemMessage)) {
				bl = false;
			}
		}

		if (i == 0) {
			throw NO_STRUCTURES_TO_EXPORT.create();
		} else {
			String string = "Exported " + i + " structures";
			testFinder.source().sendSuccess(() -> Component.literal(string), true);
			return bl ? 0 : 1;
		}
	}

	private static int verify(TestFinder testFinder) {
		stopTests();
		CommandSourceStack commandSourceStack = testFinder.source();
		ServerLevel serverLevel = commandSourceStack.getLevel();
		BlockPos blockPos = createTestPositionAround(commandSourceStack);
		Collection<GameTestInfo> collection = Stream.concat(
				toGameTestInfos(commandSourceStack, RetryOptions.noRetries(), testFinder), toGameTestInfo(commandSourceStack, RetryOptions.noRetries(), testFinder, 0)
			)
			.toList();
		GameTestRunner.clearMarkers(serverLevel);
		FailedTestTracker.forgetFailedTests();
		Collection<GameTestBatch> collection2 = new ArrayList();

		for (GameTestInfo gameTestInfo : collection) {
			for (Rotation rotation : Rotation.values()) {
				Collection<GameTestInfo> collection3 = new ArrayList();

				for (int i = 0; i < 100; i++) {
					GameTestInfo gameTestInfo2 = new GameTestInfo(gameTestInfo.getTestHolder(), rotation, serverLevel, new RetryOptions(1, true));
					gameTestInfo2.setTestBlockPos(gameTestInfo.getTestBlockPos());
					collection3.add(gameTestInfo2);
				}

				GameTestBatch gameTestBatch = GameTestBatchFactory.toGameTestBatch(collection3, gameTestInfo.getTest().batch(), rotation.ordinal());
				collection2.add(gameTestBatch);
			}
		}

		StructureGridSpawner structureGridSpawner = new StructureGridSpawner(blockPos, 10, true);
		GameTestRunner gameTestRunner = GameTestRunner.Builder.fromBatches(collection2, serverLevel)
			.batcher(GameTestBatchFactory.fromGameTestInfo(100))
			.newStructureSpawner(structureGridSpawner)
			.existingStructureSpawner(structureGridSpawner)
			.haltOnError(true)
			.build();
		return trackAndStartRunner(commandSourceStack, gameTestRunner);
	}

	private static int run(TestFinder testFinder, RetryOptions retryOptions, int rotationSteps, int testsPerRow) {
		stopTests();
		CommandSourceStack commandSourceStack = testFinder.source();
		ServerLevel serverLevel = commandSourceStack.getLevel();
		BlockPos blockPos = createTestPositionAround(commandSourceStack);
		Collection<GameTestInfo> collection = Stream.concat(
				toGameTestInfos(commandSourceStack, retryOptions, testFinder), toGameTestInfo(commandSourceStack, retryOptions, testFinder, rotationSteps)
			)
			.toList();
		if (collection.isEmpty()) {
			commandSourceStack.sendSuccess(() -> Component.translatable("commands.test.no_tests"), false);
			return 0;
		} else {
			GameTestRunner.clearMarkers(serverLevel);
			FailedTestTracker.forgetFailedTests();
			commandSourceStack.sendSuccess(() -> Component.translatable("commands.test.run.running", collection.size()), false);
			GameTestRunner gameTestRunner = GameTestRunner.Builder.fromInfo(collection, serverLevel)
				.newStructureSpawner(new StructureGridSpawner(blockPos, testsPerRow, false))
				.build();
			return trackAndStartRunner(commandSourceStack, gameTestRunner);
		}
	}

	private static int locate(TestFinder testFinder) throws CommandSyntaxException {
		testFinder.source().sendSystemMessage(Component.translatable("commands.test.locate.started"));
		MutableInt mutableInt = new MutableInt(0);
		BlockPos blockPos = BlockPos.containing(testFinder.source().getPosition());
		testFinder.findTestPos()
			.forEach(
				blockPos2 -> {
					if (testFinder.source().getLevel().getBlockEntity(blockPos2) instanceof TestInstanceBlockEntity testInstanceBlockEntity) {
						Direction var13 = testInstanceBlockEntity.getRotation().rotate(Direction.NORTH);
						BlockPos blockPos3 = testInstanceBlockEntity.getBlockPos().relative(var13, 2);
						int ix = (int)var13.getOpposite().toYRot();
						String string = String.format(Locale.ROOT, "/tp @s %d %d %d %d 0", blockPos3.getX(), blockPos3.getY(), blockPos3.getZ(), ix);
						int j = blockPos.getX() - blockPos2.getX();
						int k = blockPos.getZ() - blockPos2.getZ();
						int l = Mth.floor(Mth.sqrt(j * j + k * k));
						MutableComponent component = ComponentUtils.wrapInSquareBrackets(
								Component.translatable("chat.coordinates", blockPos2.getX(), blockPos2.getY(), blockPos2.getZ())
							)
							.withStyle(
								style -> style.withColor(ChatFormatting.GREEN)
									.withClickEvent(new ClickEvent.SuggestCommand(string))
									.withHoverEvent(new HoverEvent.ShowText(Component.translatable("chat.coordinates.tooltip")))
							);
						testFinder.source().sendSuccess(() -> Component.translatable("commands.test.locate.found", component, l), false);
						mutableInt.increment();
					}
				}
			);
		int i = mutableInt.intValue();
		if (i == 0) {
			throw NO_TEST_INSTANCES.create();
		} else {
			testFinder.source().sendSuccess(() -> Component.translatable("commands.test.locate.done", i), true);
			return i;
		}
	}

	private static ArgumentBuilder<CommandSourceStack, ?> runWithRetryOptions(
		ArgumentBuilder<CommandSourceStack, ?> argumentBuilder,
		InCommandFunction<CommandContext<CommandSourceStack>, TestFinder> finderGetter,
		Function<ArgumentBuilder<CommandSourceStack, ?>, ArgumentBuilder<CommandSourceStack, ?>> modifier
	) {
		return argumentBuilder.executes(commandContext -> run(finderGetter.apply(commandContext), RetryOptions.noRetries(), 0, 8))
			.then(
				Commands.argument("numberOfTimes", IntegerArgumentType.integer(0))
					.executes(
						commandContext -> run(finderGetter.apply(commandContext), new RetryOptions(IntegerArgumentType.getInteger(commandContext, "numberOfTimes"), false), 0, 8)
					)
					.then(
						(ArgumentBuilder<CommandSourceStack, ?>)modifier.apply(
							Commands.argument("untilFailed", BoolArgumentType.bool())
								.executes(
									commandContext -> run(
										finderGetter.apply(commandContext),
										new RetryOptions(IntegerArgumentType.getInteger(commandContext, "numberOfTimes"), BoolArgumentType.getBool(commandContext, "untilFailed")),
										0,
										8
									)
								)
						)
					)
			);
	}

	private static ArgumentBuilder<CommandSourceStack, ?> runWithRetryOptions(
		ArgumentBuilder<CommandSourceStack, ?> argumentBuilder, InCommandFunction<CommandContext<CommandSourceStack>, TestFinder> finderGetter
	) {
		return runWithRetryOptions(argumentBuilder, finderGetter, argumentBuilderx -> argumentBuilderx);
	}

	private static ArgumentBuilder<CommandSourceStack, ?> runWithRetryOptionsAndBuildInfo(
		ArgumentBuilder<CommandSourceStack, ?> argumentBuilder, InCommandFunction<CommandContext<CommandSourceStack>, TestFinder> finderGetter
	) {
		return runWithRetryOptions(
			argumentBuilder,
			finderGetter,
			argumentBuilderx -> argumentBuilderx.then(
				Commands.argument("rotationSteps", IntegerArgumentType.integer())
					.executes(
						commandContext -> run(
							finderGetter.apply(commandContext),
							new RetryOptions(IntegerArgumentType.getInteger(commandContext, "numberOfTimes"), BoolArgumentType.getBool(commandContext, "untilFailed")),
							IntegerArgumentType.getInteger(commandContext, "rotationSteps"),
							8
						)
					)
					.then(
						Commands.argument("testsPerRow", IntegerArgumentType.integer())
							.executes(
								commandContext -> run(
									finderGetter.apply(commandContext),
									new RetryOptions(IntegerArgumentType.getInteger(commandContext, "numberOfTimes"), BoolArgumentType.getBool(commandContext, "untilFailed")),
									IntegerArgumentType.getInteger(commandContext, "rotationSteps"),
									IntegerArgumentType.getInteger(commandContext, "testsPerRow")
								)
							)
					)
			)
		);
	}

	public static void register(CommandDispatcher<CommandSourceStack> dispatcher, CommandBuildContext buildContext) {
		ArgumentBuilder<CommandSourceStack, ?> argumentBuilder = runWithRetryOptionsAndBuildInfo(
			Commands.argument("onlyRequiredTests", BoolArgumentType.bool()),
			commandContext -> TestFinder.builder().failedTests(commandContext, BoolArgumentType.getBool(commandContext, "onlyRequiredTests"))
		);
		LiteralArgumentBuilder<CommandSourceStack> literalArgumentBuilder = Commands.literal("test")
			.requires(commandSourceStack -> commandSourceStack.hasPermission(2))
			.then(
				Commands.literal("run")
					.then(
						runWithRetryOptionsAndBuildInfo(
							Commands.argument("tests", ResourceSelectorArgument.resourceSelector(buildContext, Registries.TEST_INSTANCE)),
							commandContext -> TestFinder.builder()
								.byResourceSelection(commandContext, ResourceSelectorArgument.getSelectedResources(commandContext, "tests", Registries.TEST_INSTANCE))
						)
					)
			)
			.then(
				Commands.literal("runmultiple")
					.then(
						Commands.argument("tests", ResourceSelectorArgument.resourceSelector(buildContext, Registries.TEST_INSTANCE))
							.executes(
								commandContext -> run(
									TestFinder.builder()
										.byResourceSelection(commandContext, ResourceSelectorArgument.getSelectedResources(commandContext, "tests", Registries.TEST_INSTANCE)),
									RetryOptions.noRetries(),
									0,
									8
								)
							)
							.then(
								Commands.argument("amount", IntegerArgumentType.integer())
									.executes(
										commandContext -> run(
											TestFinder.builder()
												.createMultipleCopies(IntegerArgumentType.getInteger(commandContext, "amount"))
												.byResourceSelection(commandContext, ResourceSelectorArgument.getSelectedResources(commandContext, "tests", Registries.TEST_INSTANCE)),
											RetryOptions.noRetries(),
											0,
											8
										)
									)
							)
					)
			)
			.then(runWithRetryOptions(Commands.literal("runthese"), TestFinder.builder()::allNearby))
			.then(runWithRetryOptions(Commands.literal("runclosest"), TestFinder.builder()::nearest))
			.then(runWithRetryOptions(Commands.literal("runthat"), TestFinder.builder()::lookedAt))
			.then(runWithRetryOptionsAndBuildInfo(Commands.literal("runfailed").then(argumentBuilder), TestFinder.builder()::failedTests))
			.then(
				Commands.literal("verify")
					.then(
						Commands.argument("tests", ResourceSelectorArgument.resourceSelector(buildContext, Registries.TEST_INSTANCE))
							.executes(
								commandContext -> verify(
									TestFinder.builder()
										.byResourceSelection(commandContext, ResourceSelectorArgument.getSelectedResources(commandContext, "tests", Registries.TEST_INSTANCE))
								)
							)
					)
			)
			.then(
				Commands.literal("locate")
					.then(
						Commands.argument("tests", ResourceSelectorArgument.resourceSelector(buildContext, Registries.TEST_INSTANCE))
							.executes(
								commandContext -> locate(
									TestFinder.builder()
										.byResourceSelection(commandContext, ResourceSelectorArgument.getSelectedResources(commandContext, "tests", Registries.TEST_INSTANCE))
								)
							)
					)
			)
			.then(Commands.literal("resetclosest").executes(commandContext -> reset(TestFinder.builder().nearest(commandContext))))
			.then(Commands.literal("resetthese").executes(commandContext -> reset(TestFinder.builder().allNearby(commandContext))))
			.then(Commands.literal("resetthat").executes(commandContext -> reset(TestFinder.builder().lookedAt(commandContext))))
			.then(Commands.literal("clearthat").executes(commandContext -> clear(TestFinder.builder().lookedAt(commandContext))))
			.then(Commands.literal("clearthese").executes(commandContext -> clear(TestFinder.builder().allNearby(commandContext))))
			.then(
				Commands.literal("clearall")
					.executes(commandContext -> clear(TestFinder.builder().radius(commandContext, 200)))
					.then(
						Commands.argument("radius", IntegerArgumentType.integer())
							.executes(
								commandContext -> clear(TestFinder.builder().radius(commandContext, Mth.clamp(IntegerArgumentType.getInteger(commandContext, "radius"), 0, 1024)))
							)
					)
			)
			.then(Commands.literal("stop").executes(commandContext -> stopTests()))
			.then(
				Commands.literal("pos")
					.executes(commandContext -> showPos(commandContext.getSource(), "pos"))
					.then(
						Commands.argument("var", StringArgumentType.word())
							.executes(commandContext -> showPos(commandContext.getSource(), StringArgumentType.getString(commandContext, "var")))
					)
			)
			.then(
				Commands.literal("create")
					.then(
						Commands.argument("id", ResourceLocationArgument.id())
							.suggests(TestCommand::suggestTestFunction)
							.executes(commandContext -> createNewStructure(commandContext.getSource(), ResourceLocationArgument.getId(commandContext, "id"), 5, 5, 5))
							.then(
								Commands.argument("width", IntegerArgumentType.integer())
									.executes(
										commandContext -> createNewStructure(
											commandContext.getSource(),
											ResourceLocationArgument.getId(commandContext, "id"),
											IntegerArgumentType.getInteger(commandContext, "width"),
											IntegerArgumentType.getInteger(commandContext, "width"),
											IntegerArgumentType.getInteger(commandContext, "width")
										)
									)
									.then(
										Commands.argument("height", IntegerArgumentType.integer())
											.then(
												Commands.argument("depth", IntegerArgumentType.integer())
													.executes(
														commandContext -> createNewStructure(
															commandContext.getSource(),
															ResourceLocationArgument.getId(commandContext, "id"),
															IntegerArgumentType.getInteger(commandContext, "width"),
															IntegerArgumentType.getInteger(commandContext, "height"),
															IntegerArgumentType.getInteger(commandContext, "depth")
														)
													)
											)
									)
							)
					)
			);
		if (SharedConstants.IS_RUNNING_IN_IDE) {
			literalArgumentBuilder = literalArgumentBuilder.then(
					Commands.literal("export")
						.then(
							Commands.argument("test", ResourceArgument.resource(buildContext, Registries.TEST_INSTANCE))
								.executes(
									commandContext -> exportTestStructure(commandContext.getSource(), ResourceArgument.getResource(commandContext, "test", Registries.TEST_INSTANCE))
								)
						)
				)
				.then(Commands.literal("exportclosest").executes(commandContext -> export(TestFinder.builder().nearest(commandContext))))
				.then(Commands.literal("exportthese").executes(commandContext -> export(TestFinder.builder().allNearby(commandContext))))
				.then(Commands.literal("exportthat").executes(commandContext -> export(TestFinder.builder().lookedAt(commandContext))));
		}

		dispatcher.register(literalArgumentBuilder);
	}

	public static CompletableFuture<Suggestions> suggestTestFunction(CommandContext<CommandSourceStack> context, SuggestionsBuilder builder) {
		Stream<String> stream = context.getSource().registryAccess().lookupOrThrow(Registries.TEST_FUNCTION).listElements().map(Holder::getRegisteredName);
		return SharedSuggestionProvider.suggest(stream, builder);
	}

	private static int resetGameTestInfo(CommandSourceStack source, GameTestInfo testInfo) {
		TestInstanceBlockEntity testInstanceBlockEntity = testInfo.getTestInstanceBlockEntity();
		testInstanceBlockEntity.resetTest(source::sendSystemMessage);
		return 1;
	}

	private static Stream<GameTestInfo> toGameTestInfos(CommandSourceStack source, RetryOptions retryOptions, TestPosFinder posFinder) {
		return posFinder.findTestPos().map(blockPos -> createGameTestInfo(blockPos, source, retryOptions)).flatMap(Optional::stream);
	}

	private static Stream<GameTestInfo> toGameTestInfo(CommandSourceStack source, RetryOptions retryOptions, TestInstanceFinder finder, int rotationSteps) {
		return finder.findTests()
			.filter(reference -> verifyStructureExists(source, ((GameTestInstance)reference.value()).structure()))
			.map(reference -> new GameTestInfo(reference, StructureUtils.getRotationForRotationSteps(rotationSteps), source.getLevel(), retryOptions));
	}

	private static Optional<GameTestInfo> createGameTestInfo(BlockPos pos, CommandSourceStack source, RetryOptions retryOptions) {
		ServerLevel serverLevel = source.getLevel();
		if (serverLevel.getBlockEntity(pos) instanceof TestInstanceBlockEntity testInstanceBlockEntity) {
			Optional<Reference<GameTestInstance>> optional = testInstanceBlockEntity.test()
				.flatMap(source.registryAccess().lookupOrThrow(Registries.TEST_INSTANCE)::get);
			if (optional.isEmpty()) {
				source.sendFailure(Component.translatable("commands.test.error.non_existant_test", testInstanceBlockEntity.getTestName()));
				return Optional.empty();
			} else {
				Reference<GameTestInstance> reference = (Reference<GameTestInstance>)optional.get();
				GameTestInfo gameTestInfo = new GameTestInfo(reference, testInstanceBlockEntity.getRotation(), serverLevel, retryOptions);
				gameTestInfo.setTestBlockPos(pos);
				return !verifyStructureExists(source, gameTestInfo.getStructure()) ? Optional.empty() : Optional.of(gameTestInfo);
			}
		} else {
			source.sendFailure(Component.translatable("commands.test.error.test_instance_not_found.position", pos.getX(), pos.getY(), pos.getZ()));
			return Optional.empty();
		}
	}

	private static int createNewStructure(CommandSourceStack source, ResourceLocation id, int width, int height, int depth) throws CommandSyntaxException {
		if (width <= 48 && height <= 48 && depth <= 48) {
			ServerLevel serverLevel = source.getLevel();
			BlockPos blockPos = createTestPositionAround(source);
			TestInstanceBlockEntity testInstanceBlockEntity = StructureUtils.createNewEmptyTest(
				id, blockPos, new Vec3i(width, height, depth), Rotation.NONE, serverLevel
			);
			BlockPos blockPos2 = testInstanceBlockEntity.getStructurePos();
			BlockPos blockPos3 = blockPos2.offset(width - 1, 0, depth - 1);
			BlockPos.betweenClosedStream(blockPos2, blockPos3).forEach(blockPosx -> serverLevel.setBlockAndUpdate(blockPosx, Blocks.BEDROCK.defaultBlockState()));
			source.sendSuccess(() -> Component.translatable("commands.test.create.success", testInstanceBlockEntity.getTestName()), true);
			return 1;
		} else {
			throw TOO_LARGE.create(48);
		}
	}

	private static int showPos(CommandSourceStack source, String variableName) throws CommandSyntaxException {
		BlockHitResult blockHitResult = (BlockHitResult)source.getPlayerOrException().pick(10.0, 1.0F, false);
		BlockPos blockPos = blockHitResult.getBlockPos();
		ServerLevel serverLevel = source.getLevel();
		Optional<BlockPos> optional = StructureUtils.findTestContainingPos(blockPos, 15, serverLevel);
		if (optional.isEmpty()) {
			optional = StructureUtils.findTestContainingPos(blockPos, 200, serverLevel);
		}

		if (optional.isEmpty()) {
			throw NO_TEST_CONTAINING.create(blockPos.getX(), blockPos.getY(), blockPos.getZ());
		} else if (serverLevel.getBlockEntity((BlockPos)optional.get()) instanceof TestInstanceBlockEntity testInstanceBlockEntity) {
			BlockPos var12 = testInstanceBlockEntity.getStructurePos();
			BlockPos blockPos3 = blockPos.subtract(var12);
			String string = blockPos3.getX() + ", " + blockPos3.getY() + ", " + blockPos3.getZ();
			String string2 = testInstanceBlockEntity.getTestName().getString();
			MutableComponent component = Component.translatable("commands.test.coordinates", blockPos3.getX(), blockPos3.getY(), blockPos3.getZ())
				.setStyle(
					Style.EMPTY
						.withBold(true)
						.withColor(ChatFormatting.GREEN)
						.withHoverEvent(new HoverEvent.ShowText(Component.translatable("commands.test.coordinates.copy")))
						.withClickEvent(new ClickEvent.CopyToClipboard("final BlockPos " + variableName + " = new BlockPos(" + string + ");"))
				);
			source.sendSuccess(() -> Component.translatable("commands.test.relative_position", string2, component), false);
			DebugPackets.sendGameTestAddMarker(serverLevel, new BlockPos(blockPos), string, -2147418368, 10000);
			return 1;
		} else {
			throw TEST_INSTANCE_COULD_NOT_BE_FOUND.create();
		}
	}

	private static int stopTests() {
		GameTestTicker.SINGLETON.clear();
		return 1;
	}

	public static int trackAndStartRunner(CommandSourceStack source, GameTestRunner testRunner) {
		testRunner.addListener(new TestCommand.TestBatchSummaryDisplayer(source));
		MultipleTestTracker multipleTestTracker = new MultipleTestTracker(testRunner.getTestInfos());
		multipleTestTracker.addListener(new TestCommand.TestSummaryDisplayer(source, multipleTestTracker));
		multipleTestTracker.addFailureListener(gameTestInfo -> FailedTestTracker.rememberFailedTest(gameTestInfo.getTestHolder()));
		testRunner.start();
		return 1;
	}

	private static int exportTestStructure(CommandSourceStack source, Holder<GameTestInstance> testInstance) {
		return !TestInstanceBlockEntity.export(source.getLevel(), testInstance.value().structure(), source::sendSystemMessage) ? 0 : 1;
	}

	private static boolean verifyStructureExists(CommandSourceStack source, ResourceLocation structure) {
		if (source.getLevel().getStructureManager().get(structure).isEmpty()) {
			source.sendFailure(Component.translatable("commands.test.error.structure_not_found", Component.translationArg(structure)));
			return false;
		} else {
			return true;
		}
	}

	private static BlockPos createTestPositionAround(CommandSourceStack source) {
		BlockPos blockPos = BlockPos.containing(source.getPosition());
		int i = source.getLevel().getHeightmapPos(Heightmap.Types.WORLD_SURFACE, blockPos).getY();
		return new BlockPos(blockPos.getX(), i, blockPos.getZ() + 3);
	}

	record TestBatchSummaryDisplayer(CommandSourceStack source) implements GameTestBatchListener {
		@Override
		public void testBatchStarting(GameTestBatch batch) {
			this.source.sendSuccess(() -> Component.translatable("commands.test.batch.starting", batch.environment().getRegisteredName(), batch.index()), true);
		}

		@Override
		public void testBatchFinished(GameTestBatch batch) {
		}
	}

	public record TestSummaryDisplayer(CommandSourceStack source, MultipleTestTracker tracker) implements GameTestListener {
		@Override
		public void testStructureLoaded(GameTestInfo testInfo) {
		}

		@Override
		public void testPassed(GameTestInfo test, GameTestRunner runner) {
			this.showTestSummaryIfAllDone();
		}

		@Override
		public void testFailed(GameTestInfo test, GameTestRunner runner) {
			this.showTestSummaryIfAllDone();
		}

		@Override
		public void testAddedForRerun(GameTestInfo oldTest, GameTestInfo newTest, GameTestRunner runner) {
			this.tracker.addTestToTrack(newTest);
		}

		private void showTestSummaryIfAllDone() {
			if (this.tracker.isDone()) {
				this.source.sendSuccess(() -> Component.translatable("commands.test.summary", this.tracker.getTotalCount()).withStyle(ChatFormatting.WHITE), true);
				if (this.tracker.hasFailedRequired()) {
					this.source.sendFailure(Component.translatable("commands.test.summary.failed", this.tracker.getFailedRequiredCount()));
				} else {
					this.source.sendSuccess(() -> Component.translatable("commands.test.summary.all_required_passed").withStyle(ChatFormatting.GREEN), true);
				}

				if (this.tracker.hasFailedOptional()) {
					this.source.sendSystemMessage(Component.translatable("commands.test.summary.optional_failed", this.tracker.getFailedOptionalCount()));
				}
			}
		}
	}
}