package net.minecraft.util.filefix.access;

import java.nio.file.Path;
import java.util.ArrayList;
import java.util.List;

public class FileAccessProvider implements AutoCloseable {
	private final List<FileAccess<?>> accessedFiles = new ArrayList();
	private final ScopedValue<Path> baseDirectory = ScopedValue.newInstance();
	private final int dataVersion;
	private boolean frozen = false;

	public FileAccessProvider(final int dataVersion) {
		this.dataVersion = dataVersion;
	}

	public <T extends AutoCloseable> FileAccess<T> getFileAccess(final FileResourceType<T> type, final FileRelation fileRelation) {
		if (this.frozen) {
			throw new IllegalStateException("Cannot request new file access here.");
		} else {
			FileAccess<T> fileAccess = new FileAccess<>(this, type, fileRelation);
			this.accessedFiles.add(fileAccess);
			return fileAccess;
		}
	}

	public void freeze() {
		this.frozen = true;
	}

	public ScopedValue<Path> baseDirectory() {
		return this.baseDirectory;
	}

	public int dataVersion() {
		return this.dataVersion;
	}

	public void close() {
		for (FileAccess<?> accessedFile : this.accessedFiles) {
			accessedFile.close();
		}
	}
}