package org.openslx.dozmod.model;

import org.openslx.dozmod.thrift.cache.MetaDataCache;
import org.openslx.virtualization.configuration.VirtualizationConfigurationDocker;
import org.openslx.virtualization.configuration.VirtualizationConfigurationException;
import org.openslx.virtualization.configuration.container.ContainerMeta;

import java.io.*;
import java.util.Scanner;

public class ContainerDefinition extends
		org.openslx.virtualization.configuration.container.ContainerDefinition {

	public ContainerDefinition(ContainerDefinition containerDefinition) {
		super(containerDefinition);
	}

	public ContainerDefinition() {
		super();
	}

	public VirtualizationConfigurationDocker createVirtualizationConfig() {
		byte[] rawContainerRecipe = toByteBuffer().array();
		try {
			return new VirtualizationConfigurationDocker(MetaDataCache.getOperatingSystems(), rawContainerRecipe,
					rawContainerRecipe.length);
		} catch (VirtualizationConfigurationException e) {
			e.printStackTrace();
			LOGGER.error("Could not create ContainerMetaDataDummy");
		}
		return null;
	}

	private void setContainerMeta(ContainerMeta containerMeta){
		this.containerMeta = containerMeta;
	}

	/**
	 * Masks the fromByteArray Method in org.openslx.virtualization.configuration.container.ContainerDefinition.
	 * Prevents ClassCastExceptions while casting from parent to child!
	 * @param rawTarData
	 * @return
	 */
	public static ContainerDefinition fromByteArray(byte[] rawTarData) {

		ContainerDefinition conDef = new ContainerDefinition();

		org.openslx.virtualization.configuration.container.ContainerDefinition pConDef = org.openslx.virtualization.configuration.container.ContainerDefinition.fromByteArray(rawTarData);

		conDef.setContainerRecipe(pConDef.getContainerRecipe());
		conDef.setContainerMeta(pConDef.getContainerMeta());

		return conDef;
	}

	public static boolean isValidDockerfile(String dockerfile) {
		try {
			File file = new File(dockerfile);
			if (file.length() == 0)
				return false;

			Scanner scanner = new Scanner(file);
			while (scanner.hasNext()) {
				if(scanner.next().contains("FROM")){
					scanner.close();
					return true;
				}
			}
			scanner.close();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		}
		return false;
	}
}