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package br.com.jhonsapp.repository.object;

import java.io.File;

import org.springframework.util.StringUtils;

import br.com.jhonsapp.repository.util.FileUtil;
import br.com.jhonsapp.repository.util.PathUtil;

/**
 * An abstract representation of image.
 * 
 * @see Object
 * 
 * @author Jhonathan Camacho.
 */
public class ObjectImpl implements Object {

	/**
	 * Generated serial version id created at 14 July 2017.
	 */
	private static final long serialVersionUID = 8962259017237194771L;

	private String folder;
	private String id;
	private byte[] bytes;
	private File file;

	private ObjectImpl(String folder, String id, byte[] file) {

		if (!StringUtils.hasText(id))
			throw new IllegalArgumentException("The id cannot be null.");

		if (FileUtil.isInvalid(file))
			throw new IllegalArgumentException("The content cannot be null.");

		this.folder = folder;
		this.id = id;
		this.bytes = file;
	}

	private ObjectImpl(String folder, String id, File file) {

		if (!StringUtils.hasText(id))
			throw new IllegalArgumentException("The id cannot be null.");

		if (FileUtil.isInvalid(file))
			throw new IllegalArgumentException("The content cannot be null.");

		this.folder = folder;
		this.id = id;
		this.file = file;
	}

	@Override
	public String getId() {
		return id;
	}

	@Override
	public String getFolder() {
		return PathUtil.pathFormat(folder);
	}

	@Override
	public String getAbsolutePath() {

		if (!StringUtils.hasText(getFolder()))
			return getId();
		else
			return getFolder() + File.separatorChar + getId();
	}

	@Override
	public File getContentsInFile() {
		if (FileUtil.isInvalid(file))
			return FileUtil.convertToFile(bytes, getAbsolutePath());
		else
			return file;
	}

	@Override
	public byte[] getContentsInByte() {
		if (FileUtil.isInvalid(bytes))
			return FileUtil.convertToByte(file);
		else
			return bytes;
	}

	public static final Object createObject(String folder, String id, byte[] file) {
		return new ObjectImpl(folder, id, file);
	}

	public static final Object createObject(String folder, String id, File file) {
		return new ObjectImpl(folder, id, file);
	}

}