/****************************************************************************
 *			Tuning and Analysis Utilities
 *			http://www.cs.uoregon.edu/research/paracomp/tau
 ****************************************************************************
 * Copyright (c) 1997-2006
 *    Department of Computer and Information Science, University of Oregon
 *    Advanced Computing Laboratory, Los Alamos National Laboratory
 *    Research Center Juelich, ZAM Germany	
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Wyatt Spear - initial API and implementation
 ****************************************************************************/
package org.eclipse.ptp.etfw.internal;

import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.ptp.etfw.IToolLaunchConfigurationConstants;
import org.eclipse.ptp.etfw.messages.Messages;
import org.eclipse.ptp.etfw.toolopts.ToolApp;
import org.eclipse.ptp.etfw.toolopts.ToolIO;
import org.eclipse.ptp.etfw.toolopts.ToolsOptionsConstants;

/**
 * Manages the process of building instrumented applications and collecting the
 * resulting data
 * 
 * @author wspear
 * 
 */
public abstract class ToolStep extends Job implements IToolLaunchConfigurationConstants {

	// private IConfiguration olddefbuildconf=null;

	// private boolean useTau=false;

	// /**
	// * The name of the original application in the launch configuration
	// */
	// private String application = null;
	//
	//
	//
	//
	//
	// private String saveApp=null;
	// private String saveArgs=null;
	// private boolean swappedArgs=false;

	// /**
	// * False implies that no execution is to take place (either because of an
	// error, or user request)
	// * */
	// private boolean runbuilt=false;
	//
	// //=null;//Activator.getTool();// .tools[0].toolPanes[0];;
	//
	// /** Executable (application) attribute name */
	// private String appnameattrib=null;
	// /** Executable (application) path attribute name */
	// private String apppathattrib=null;
	//

	protected String projectLocation = null;
	protected String outputLocation = null;

	protected String projectBinary = null;
	protected String projectName = null;

	protected ICProject thisCProject = null;
	protected IProject thisProject = null;
	// protected String outputLocation=null;
	protected ILaunchConfiguration configuration = null;
	// protected final ExternalToolProcess tool;
	protected Map<String, String> IOMap = null;

	protected ToolStep(ILaunchConfiguration conf, String name) throws CoreException {
		super(name);
		configuration = conf;

		thisProject = getProject(configuration);
		thisCProject = CCorePlugin.getDefault().getCoreModel().create(thisProject);
		projectLocation = thisCProject.getResource().getLocation().toOSString();
		outputLocation = projectLocation;

		projectBinary = Messages.ToolStep_Unknown;
		projectName = Messages.ToolStep_Unknown;

		IOMap = new HashMap<String, String>();
		// this.tool=Activator.getTool(configuration.getAttribute(SELECTED_TOOL,
		// (String)null));
	}

	//
	// /**
	// * Creates a new LaunchManage object with the information necessary to
	// instrument a program for performance analysis
	// * @param conf The Launch configuration being adjusted for performance
	// analysis
	// * @param ana The application name attribute used by the underlying launch
	// configuration delegate (differs between CDT and PTP)
	// * @param projnameattrib The project name attribute used by the underlying
	// launch configuration delegate (differs between CDT and PTP)
	// * @throws CoreException
	// */
	// public ToolStep(ILaunchConfiguration conf, String ana, String
	// projnameattrib, String apa, String progPath, String outLoc) throws
	// CoreException{//, TAULaunch tool
	//
	// super("Performance Analysis");
	//
	// appnameattrib=ana;
	// apppathattrib=apa;
	// configuration=conf;
	// //this.progPath=progPath;
	// //useTau=configuration.getAttribute(TAULAUNCH, false);
	// thisProject = getProject(projnameattrib, configuration);
	// thisCProject =
	// CCorePlugin.getDefault().getCoreModel().create(thisProject);
	// projectLocation=thisCProject.getResource().getLocation().toOSString();
	// if(outputLocation==null){
	// outputLocation=projectLocation;
	// }
	// else{
	// outputLocation=outLoc;
	// }
	//
	//
	// IOMap=new HashMap<String, String>();
	//
	// }

	public void setConfiguration(ILaunchConfiguration conf) {
		configuration = conf;
	}

	public ILaunchConfiguration getConfiguration() {
		return configuration;
	}

	/**
	 * Gets the project associated with the launch configuration held by this
	 * manager
	 * 
	 * @param configuration
	 * @return The project associated with this manager's launch configuration,
	 *         or null if no project is found
	 * @throws CoreException
	 */
	protected static IProject getProject(ILaunchConfiguration configuration) throws CoreException {
		String projectName = configuration.getAttribute(configuration.getAttribute(EXTOOL_PROJECT_NAME_TAG, (String) null),
				(String) null);
		if (projectName != null) {
			projectName = projectName.trim();
			if (projectName.length() > 0) {
				return ResourcesPlugin.getWorkspace().getRoot().getProject(projectName);
			}
		}
		return null;
	}

	// boolean isManagedProject(IProject prj) {
	// if(prj==null)
	// return false;
	// ICProjectDescription prjd
	// =CoreModel.getDefault().getProjectDescription(prj, false);
	// if(prjd==null)
	// return false;
	// IConfiguration
	// cfg=ManagedBuildManager.getConfigurationForDescription(prjd.getDefaultSettingConfiguration());
	// return ( cfg.getBuilder().isManagedBuildOn() );
	// }

	// private boolean doclean = true;
	//
	// public void setDoClean(boolean doit){
	// doclean=doit;
	// }

	// protected String getToolArguments(ToolApp app, ILaunchConfiguration
	// configuration) throws CoreException
	// {
	// return getToolArguments(app,configuration,"");
	// }

	private String insertProjectValues(String tmp) {
		tmp = tmp.replaceAll(ToolsOptionsConstants.PROJECT_BUILD, outputLocation);
		tmp = tmp.replaceAll(ToolsOptionsConstants.PROJECT_ROOT, projectLocation);
		tmp = tmp.replaceAll(ToolsOptionsConstants.PROJECT_BINARY, projectBinary);
		tmp = tmp.replaceAll(ToolsOptionsConstants.PROJECT_NAME, projectName);
		return tmp;
	}

	protected List<String> getToolArgumentList(ToolApp app, ILaunchConfiguration configuration) throws CoreException {
		if (app == null)
			return null;
		// Formerly replaced with projectLocation global variable. May be the
		// same?
		List<String> allargs = app.getArguments(configuration);

		for (int i = 0; i < allargs.size(); i++) {
			String tmp = insertProjectValues(allargs.get(i));

			allargs.set(i, tmp);
		}
		String io = parseInput(app).trim();
		if (io.length() > 0)
			allargs.add(io);
		io = parseOutput(app).trim();
		if (io.length() > 0)
			allargs.add(io);
		return allargs;
	}

	protected String getToolArguments(ToolApp app, ILaunchConfiguration configuration) throws CoreException {
		List<String> argList = getToolArgumentList(app, configuration);
		String args = ""; //$NON-NLS-1$
		if (argList == null)
			return (args);

		for (String a : argList) {
			args += a + " "; //$NON-NLS-1$
		}

		// Formerly replaced with projectLocation global variable. May be the
		// same?
		// String allargs=app.getArguments(configuration);
		// allargs=allargs.replaceAll(ToolsOptionsConstants.PROJECT_BUILD,
		// buildDir);
		// allargs=allargs.replaceAll(ToolsOptionsConstants.PROJECT_ROOT,
		// rootDir);
		// allargs=allargs+parseInput(app)+" "+parseOutput(app);
		return args;
	}

	protected Map<String, String> getToolEnvVars(ToolApp app, ILaunchConfiguration configuration) throws CoreException {
		if (app == null) {
			return null;
		}
		Map<String, String> map = app.getEnvVars(configuration);

		Iterator<Entry<String, String>> mapIt = map.entrySet().iterator();
		Entry<String, String> ent;
		while (mapIt.hasNext()) {
			ent = mapIt.next();

			String tmp = insertProjectValues(ent.getValue());

			ent.setValue(tmp);
		}

		return map;
	}

	private String parseInput(ToolApp app) {
		String input = ""; //$NON-NLS-1$
		String oneIn = ""; //$NON-NLS-1$
		if (app.inputArgs != null)
			for (int i = 0; i < app.inputArgs.length; i++) {
				oneIn = ""; //$NON-NLS-1$
				if (app.inputArgs[i].pathFlag != null)
					oneIn += app.inputArgs[i].pathFlag + " "; //$NON-NLS-1$
				if (IOMap.containsKey(app.inputArgs[i].ID)) {
					input += IOMap.get(app.inputArgs[i].ID);
					/*
					 * If input type is not directory, get a file list from the
					 * specified directory
					 */
				} else {
					return ""; //$NON-NLS-1$
				}
				/*
			 * 
			 */
				// if(app.inputArgs[i].)

			}
		return input;
	}

	private String parseOutput(ToolApp app) {
		String output = ""; //$NON-NLS-1$

		/*
		 * Make and the new directory, associate it with the ID and stick -that-
		 * in the iomap!
		 */
		if (app.outputArgs != null)
			for (int i = 0; i < app.outputArgs.length; i++) {
				if (app.outputArgs[i].pathFlag != null)
					output += app.outputArgs[i].pathFlag + " "; //$NON-NLS-1$
				if (IOMap.containsKey(app.outputArgs[i].ID)) {
					output += IOMap.get(app.outputArgs[i].ID);
					/*
					 * If input type is not directory, get a file list from the
					 * specified directory
					 */
				} else {
					output += createOutputPath(app.outputArgs[i]);
				}
				/*
				 * 
				 */
				// if(app.inputArgs[i].)

			}

		return output;
	}

	private String createOutputPath(ToolIO IO) {
		// String ostring="";
		String opath = projectLocation + File.separator + IO.ID + File.separator + BuildLaunchUtils.getNow();
		File ofile = new File(opath);
		ofile.mkdirs();
		/*
		 * Create the opath. Do something smart if it is impossible.
		 */
		IOMap.put(IO.ID, opath);

		return opath;
	}

	/**
	 * Given a ToolApp app finds the full path to the associated executable if
	 * possible and returns it. If not it just returns the executable name
	 * 
	 * @param app
	 * @return
	 */
	protected static String getToolExecutable(ToolApp app) {
		String command = app.toolCommand;

		String toolPath = BuildLaunchUtils.getToolPath(app.toolGroup); // checkToolEnvPath(app.toolCommand);
		if (toolPath != null && toolPath.length() > 0) {
			command = toolPath + File.separator + command;
		}

		return command;
	}

	// protected String getToolCommand(ToolApp app, ILaunchConfiguration
	// configuration) throws CoreException
	// {
	// return getToolCommand(app,configuration,"");
	// }

	/**
	 * Returns the full tool command; the full path to the executable used by
	 * app followed by any arguments, replacing the output location with the
	 * string provided by outputloc if necessary
	 */
	protected String getToolCommand(ToolApp app, ILaunchConfiguration configuration) throws CoreException {
		String command = getToolExecutable(app);
		if (command == null)
			return null;

		return command + " " + getToolArguments(app, configuration); //$NON-NLS-1$
	}

	/**
	 * Returns the full tool command; the full path to the executable used by
	 * app followed by any arguments, replacing the output location with the
	 * string provided by outputloc if necessary
	 */
	protected List<String> getToolCommandList(ToolApp app, ILaunchConfiguration configuration) throws CoreException {
		List<String> command = new ArrayList<String>();
		String exec = getToolExecutable(app);
		if (exec == null)
			return null;

		command.add(exec.trim());

		List<String> args = getToolArgumentList(app, configuration);
		if (args == null) {
			return command;
		}
		command.addAll(args);
		return command;
	}
}