package jp.agentec.sinaburocast.helper;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import jp.agentec.sinaburocast.common.exception.SystemException;
import jp.agentec.sinaburocast.common.io.FileUtil;
import jp.agentec.sinaburocast.common.proc.ProcessUtil;
import jp.agentec.sinaburocast.common.util.PropertyUtil;

import org.apache.commons.collections.CollectionUtils;
import org.apache.log4j.Logger;
import org.seasar.framework.container.annotation.tiger.Component;
import org.seasar.framework.container.annotation.tiger.InstanceType;

@Component(instance = InstanceType.SINGLETON)
public class ShellScriptHelper {
	private final Logger logger = Logger.getLogger(getClass());
	private boolean useCygwin = PropertyUtil.getBoolean("USE_CYGWIN");

	/**
	 * シェルを実行し、実行結果を返す。
	 * 標準・エラー出力はログに出力。
	 *
	 * @param scriptKey
	 * @param parameterArray
	 * @return
	 * @throws SystemException
	 */
	public int executeShellScript(String scriptKey, String[] parameterArray) throws SystemException {
		int timeout = PropertyUtil.getInt(scriptKey + ".timeout");
		String loggerName = PropertyUtil.getProperty(scriptKey + ".logger");
		return ProcessUtil.execute(getCommandList(scriptKey, parameterArray), timeout, loggerName);
	}

	/**
	 * シェルを実行し、標準・エラー出力内容を返す。
	 *
	 * @param scriptKey
	 * @param parameterArray
	 * @return
	 * @throws SystemException
	 */
	public String executeShellScriptGetOutput(String scriptKey, String[] parameterArray) throws SystemException {
		return ProcessUtil.execute(getCommandList(scriptKey, parameterArray));
	}

	/**
	 * シェルを実行し、エラー出力内容をStringBufferにセットし結果を返す。
	 *
	 * @param scriptKey
	 * @param parameterArray
	 * @param err
	 * @return
	 * @throws SystemException
	 */
	public int executeShellScriptGetError(String scriptKey, String[] parameterArray, StringBuffer err) throws SystemException {
		int timeout = PropertyUtil.getInt(scriptKey + ".timeout");
		return ProcessUtil.execute(getCommandList(scriptKey, parameterArray), err, timeout);
	}

	/**
	 * シェルを実行し、標準出力、エラー出力内容をStringBufferにセットし結果を返す。
	 *
	 * @param scriptKey
	 * @param parameterArray
	 * @param err
	 * @return
	 * @throws SystemException
	 */
	public int executeShellScriptGetOutput(String scriptKey, String[] parameterArray, StringBuffer std, StringBuffer err) throws SystemException {
		int timeout = PropertyUtil.getInt(scriptKey + ".timeout");
		return ProcessUtil.execute(getCommandList(scriptKey, parameterArray), std, err, timeout);
	}

	private List<String> getCommandList(String scriptKey, String[] parameterArray) throws SystemException {
		String scriptPath = PropertyUtil.getProperty(scriptKey);

		if (!FileUtil.exists(scriptPath)) {
			throw new SystemException("script is not found. scriptPath=" + scriptPath, "E000");
		}
		if (useCygwin) {
			scriptPath = "/cygdrive/c" + scriptPath;
		}

		List<String> commandList = new ArrayList<String>();
		if (useCygwin) {
			commandList.addAll(Arrays.asList("cmd.exe", "/c", PropertyUtil.getProperty("CYGWIN_BASH_PATH")));
		}

		commandList.add(scriptPath);
		CollectionUtils.addAll(commandList, parameterArray);

		return commandList;
	}


}