import java.io.FilterReader;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * Deeply opinionated file filter that adds elements to the release notes HTML page.
 */
public class ReleaseNotesTransformer extends FilterReader {
    private File baseCss;
    private File releaseNotesCss;
    private File releaseNotesJavascript;

        gradle.taskGraph.whenReady {
            val buildService: Provider<T> = gradle.sharedServices.registerIfAbsent("${klass.simpleName}-$rootProjectName", klass) {
                parameters.monitoredTaskPaths = allTasks.filter(taskFilter).map { if (isInBuildLogic) ":build-logic${it.path}" else it.path }.toSet()
            }
            gradle.serviceOf<BuildEventsListenerRegistry>().onTaskCompletion(buildService)

        val resolutionResult: ResolutionResult = templateVersionConfiguration.incoming.resolutionResult
        val matches: List<ResolvedComponentResult> = resolutionResult.allComponents.filter { it != resolutionResult.root }
        if (matches.isEmpty()) {
            throw GradleException("Could not locate any matches for $notation")
        }

    }

    val typeParameters: List<ApiTypeUsage> by unsafeLazy {
        context.apiTypeParametersFor(visitedSignature)
    }

    val functions: List<ApiFunction> by unsafeLazy {
        delegate.methods.filter(::isSignificantDeclaration).map { ApiFunction(asmLevel, incubatingAnnotationTypeDescriptor, this, it, context) }
    }

    private
    fun singleAbstractMethodOf(classNode: ClassNode) =

            val dirPath = dir.toPath()
            Files.walk(dirPath).use { paths ->
                paths.filter { !it.toFile().isDirectory }
                    .limit(4)
                    .map { dirPath.relativize(it).toString() }
                    .collect(Collectors.toList())
            }
        }?.filter {
            it.value.isNotEmpty()
        } ?: emptyMap()

    /**

        val latestRelease = listOf(releasedVersions.latestReleaseSnapshot, releasedVersions.latestRc).filter { it.gradleVersion() > latestFinalRelease.gradleVersion() }.maxByOrNull { it.buildTimeStamp() } ?: latestFinalRelease
        val previousVersions = (listOf(latestRelease) + releasedVersions.finalReleases).filter { it.gradleVersion() >= lowestInterestingVersion && it.gradleVersion().baseVersion < currentBaseVersion }.distinct()

                }
            }
        }
    }
}


fun FileSystemOperations.removeCachedScripts(cachesDir: File) {
    if (cachesDir.isDirectory) {
        cachesDir.listFiles()
            .filter { it.isDirectory }
            .flatMap { scriptsCacheDirsUnder(it) }
            .forEach { scriptsCacheDir ->
                logger.lifecycle("Removing scripts cache directory : $scriptsCacheDir")

 * @example {{ owners | categorize(branch.diff.files_metadata) | computeStatistics(branch.diff.files_metadata) | summaryTable('Platform') }}
 */
function summaryTable(statistics, title) {
    let preppedStatistics = statistics.filter(s => s.files.length > 0)
        .sort(s => -(s.additions + s.deletions));

    let totalAdditions = Object.values(preppedStatistics).reduce((acc, summary) => acc + summary.additions, 0);

    @Override
    public void visit(CompilationUnit compilationUnit, ClassMetaDataRepository<ClassMetaData> repository) {
        super.visit(compilationUnit, repository);
        compilationUnit.getImports().stream()
            .filter(anImport -> !anImport.isStatic())
            .map(anImport -> anImport.getNameAsString() + (anImport.isAsterisk() ? ".*" : ""))
            .forEach(anImport -> allClasses.forEach(classMetaData -> classMetaData.addImport(anImport)));

    const checksPart = inputString.split('@bot-gitstream check');
    if (checksPart.length === 2) {
        const checks = checksPart[1].split(' ');
        const namePattern = /^[a-zA-Z_]+$/;
        return checks.filter(check => namePattern.test(check));
    } else {
        return [];
    }
}