content: /**
   *  Copyright (c) 2015-2016 Angelo ZERR.
   *  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:
   *  Angelo Zerr <angelo.zerr@gmail.com> - initial API and implementation
   */
  package ts.eclipse.ide.core.resources.jsconfig;
  
  import org.eclipse.core.resources.IContainer;
  import org.eclipse.core.resources.IFile;
  import org.eclipse.core.resources.IResource;
  import org.eclipse.core.runtime.CoreException;
  import org.eclipse.core.runtime.IPath;
  import org.eclipse.core.runtime.Path;
  
  import ts.cmd.tsc.CompilerOptions;
  import ts.eclipse.ide.core.utils.WorkbenchResourceUtil;
  import ts.eclipse.ide.internal.core.Trace;
  import ts.resources.jsonconfig.TsconfigJson;
  import ts.utils.StringUtils;
  
  /**
   * tsconfig.json loade from {@link IFile} tsconfig.json.
   *
   */
  public class IDETsconfigJson extends TsconfigJson {
  
  	private IFile tsconfigFile;
  	private IContainer outDir;
  	private IFile outFile;
  	private IContainer mapRoot;
  
  	/**
  	 * Load tsconfig.json.
  	 * 
  	 * @param tsconfigFile
  	 * @return
  	 * @throws CoreException
  	 */
  	public static IDETsconfigJson load(IFile tsconfigFile) throws CoreException {
  		IDETsconfigJson tsconfig = load(tsconfigFile.getContents(), IDETsconfigJson.class);
  		tsconfig.tsconfigFile = tsconfigFile;
  		tsconfig.outDir = computeOutDir(tsconfig);
  		tsconfig.outFile = computeOutFile(tsconfig);
  		tsconfig.mapRoot = computeMapRoot(tsconfig);
  		return tsconfig;
  	}
  
  	/**
  	 * Returns the tsconfig.json Eclipse file.
  	 * 
  	 * @return the tsconfig.json Eclipse file.
  	 */
  	public IFile getTsconfigFile() {
  		return tsconfigFile;
  	}
  
  	/**
  	 * Returns true if the given file is declared in the "files" section and
  	 * false otherwise.
  	 * 
  	 * @param resource
  	 * @return true if the given file is declared in the "files" section and
  	 *         false otherwise.
  	 */
  	public boolean isInFiles(IResource resource) {
  		if (!hasFiles()) {
  			return false;
  		}
  		String filename = getRelativePath(resource).toString();
  		if (resource.getType() == IResource.FILE) {
  			return getFiles().contains(filename);
  		}
  		// folder or project
  		for (String name : getFiles()) {
  			if (name.startsWith(filename)) {
  				return true;
  			}
  		}
  		return false;
  	}
  
  	/**
  	 * Returns true if the given resource is excluded (declared as "exclude"
  	 * section) and false otherwise.
  	 * 
  	 * @param resource
  	 * @return true if the given resource is excluded (declared as "exclude"
  	 *         section) and false otherwise.
  	 */
  	public boolean isExcluded(IResource resource) {
  		String filename = getRelativePath(resource).toString();
  		for (String exclude : getDefaultOrDefinedExclude()) {
  			if (filename.startsWith(exclude)) {
  				return true;
  			}
  		}
  		return false;
  	}
  
  	/**
  	 * Returns the relative path of the given resource to tsconfig.json folder.
  	 * 
  	 * @param resource
  	 * @return the relative path of the given resource to tsconfig.json folder.
  	 */
  	public IPath getRelativePath(IResource resource) {
  		return WorkbenchResourceUtil.getRelativePath(resource, tsconfigFile.getParent());
  	}
  
  	/**
  	 * Returns the compilerOptions/outDir as Eclipse folder and null otherwise.
  	 * 
  	 * @return the compilerOptions/outDir as Eclipse folder and null otherwise.
  	 */
  	public IContainer getOutDir() {
  		return outDir;
  	}
  
  	/**
  	 * Compute compilerOptions/outDir as Eclipse folder and null otherwise.
  	 * 
  	 * @return compilerOptions/outDir as Eclipse folder and null otherwise
  	 */
  	private static IContainer computeOutDir(IDETsconfigJson tsconfig) {
  		CompilerOptions options = tsconfig.getCompilerOptions();
  		if (options != null) {
  			String outDir = options.getOutDir();
  			if (StringUtils.isEmpty(outDir)) {
  				return null;
  			}
  			try {
  				return tsconfig.getTsconfigFile().getParent().getFolder(new Path(outDir));
  			} catch (Throwable e) {
  				Trace.trace(Trace.SEVERE, "Error while getting compilerOption/outDir", e);
  			}
  		}
  		return null;
  	}
  
  	/**
  	 * Returns the compilerOptions/mapRoot as Eclipse folder and null otherwise.
  	 * 
  	 * @return the compilerOptions/mapRoot as Eclipse folder and null otherwise.
  	 */
  	public IContainer getMapRoot() {
  		return mapRoot;
  	}
  
  	/**
  	 * Compute compilerOptions/mapRoot as Eclipse folder and null otherwise.
  	 * 
  	 * @return compilerOptions/mapRoot as Eclipse folder and null otherwise
  	 */
  	private static IContainer computeMapRoot(IDETsconfigJson tsconfig) {
  		CompilerOptions options = tsconfig.getCompilerOptions();
  		if (options != null) {
  			String mapRoot = options.getMapRoot();
  			if (StringUtils.isEmpty(mapRoot)) {
  				return null;
  			}
  			try {
  				return tsconfig.getTsconfigFile().getParent().getFolder(new Path(mapRoot));
  			} catch (Throwable e) {
  				Trace.trace(Trace.SEVERE, "Error while getting compilerOption/outDir", e);
  			}
  		}
  		return null;
  	}
  
  	public IFile getOutFile() {
  		return outFile;
  	}
  
  	/**
  	 * Compute compilerOptions/outFile as Eclipse file and null otherwise.
  	 * 
  	 * @return compilerOptions/outFile as Eclipse file and null otherwise
  	 */
  	private static IFile computeOutFile(IDETsconfigJson tsconfig) {
  		CompilerOptions options = tsconfig.getCompilerOptions();
  		if (options != null) {
  			String outFile = options.getOutFile();
  			if (StringUtils.isEmpty(outFile)) {
  				// try with "out" which is deprecated.
  				outFile = options.getOut();
  			}
  			if (StringUtils.isEmpty(outFile)) {
  				return null;
  			}
  			try {
  				return tsconfig.getTsconfigFile().getParent().getFile(new Path(outFile));
  			} catch (Throwable e) {
  				Trace.trace(Trace.SEVERE, "Error while getting compilerOption/outFile", e);
  			}
  		}
  		return null;
  	}
  
  	public boolean isInScope(IResource resource) {
  		// check if the given file is declared in the "files"
  		if (hasFiles()) {
  			return isInFiles(resource);
  		}
  		return !isExcluded(resource);
  	}
  }
  