import static java.nio.file.FileVisitResult.CONTINUE;

import java.io.IOException;

import java.nio.file.FileSystems;

import java.nio.file.FileVisitResult;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.attribute.BasicFileAttributes;

import java.util.Stack;

import java.util.Vector;

public class FileTreeCreatorVC10 extends FileTreeCreator {

      public FileTreeCreatorVC10(Path startDir, Vector<BuildConfig> allConfigs, WinGammaPlatformVC10 wg) {

         super(startDir, allConfigs, wg);

      }

      @Override

      public FileVisitResult visitFile(Path file, BasicFileAttributes attr) {

         DirAttributes currentFileAttr = attributes.peek().clone();

         boolean usePch = false;

         boolean disablePch = false;

         boolean useIgnore = false;

         String fileName = file.getFileName().toString();

         // TODO hideFile

         // usePch applies to all configs for a file.

         if (fileName.equals(BuildConfig.getFieldString(null, "UseToGeneratePch"))) {

            usePch = true;

         }

         for (BuildConfig cfg : allConfigs) {

            if (cfg.lookupHashFieldInContext("IgnoreFile", fileName) != null) {

               useIgnore = true;

               currentFileAttr.setIgnore(cfg);

            } else if (cfg.matchesIgnoredPath(file.toAbsolutePath().toString())) {

               useIgnore = true;

               currentFileAttr.setIgnore(cfg);

            }

            if (cfg.lookupHashFieldInContext("DisablePch", fileName) != null) {

               disablePch = true;

               currentFileAttr.setDisablePch(cfg);

            }

            Vector<String> rv = new Vector<String>();

            cfg.collectRelevantVectors(rv, "AdditionalFile");

            for(String addFile : rv) {

               if (addFile.equals(fileName)) {

                  // supress any ignore

                  // TODO - may need some adjustments

                  if (file.toAbsolutePath().toString().contains(cfg.get("Flavour"))) {

                     currentFileAttr.removeFromIgnored(cfg);

                  }

               }

            }

         }

         String tagName = wg.getFileTagFromSuffix(fileName);

         String fileLoc = vcProjLocation.relativize(file).toString();

         if (!useIgnore && !disablePch && !usePch) {

            wg.tag(tagName, new String[] { "Include", fileLoc});

         } else {

            wg.startTag(

                  tagName,

                  new String[] { "Include", fileLoc});

            for (BuildConfig cfg : allConfigs) {

               boolean ignore = currentFileAttr.hasIgnore(cfg);

               if (ignore) {

                  wg.tagData("ExcludedFromBuild", "true", "Condition", "'$(Configuration)|$(Platform)'=='" + cfg.get("Name") + "'");

               }

               if (usePch) {

                  wg.tagData("PrecompiledHeader", "Create", "Condition", "'$(Configuration)|$(Platform)'=='" + cfg.get("Name") + "'");

               }

               if (disablePch) {

                  wg.tag("PrecompiledHeader", "Condition", "'$(Configuration)|$(Platform)'=='" + cfg.get("Name") + "'");

               }

            }

            wg.endTag();

         }

         String filter = startDir.relativize(file.getParent().toAbsolutePath()).toString();

         wg.addFilterDependency(fileLoc, filter);

         return CONTINUE;

      }

      @Override

      public FileVisitResult preVisitDirectory(Path path, BasicFileAttributes attrs)

            throws IOException {

         Boolean hide = false;

         // TODO remove attrs, if path is matched in this dir, then it is too in every subdir.

         // And we will check anyway

         DirAttributes newAttr = attributes.peek().clone();

         // check per config ignorePaths!

         for (BuildConfig cfg : allConfigs) {

            if (cfg.matchesIgnoredPath(path.toAbsolutePath().toString())) {

               newAttr.setIgnore(cfg);

            }

            // Hide is always on all configs. And additional files are never hiddden

            if (cfg.matchesHidePath(path.toAbsolutePath().toString())) {

               hide = true;

               break;

            }

         }

         if (!hide) {

            String name = startDir.relativize(path.toAbsolutePath()).toString();

            if (!"".equals(name)) {

               wg.addFilter(name);

            }

            attributes.push(newAttr);

            return super.preVisitDirectory(path, attrs);

         } else {

            return FileVisitResult.SKIP_SUBTREE;

         }

      }

      @Override

      public FileVisitResult postVisitDirectory(Path dir, IOException exc) {

         //end matching attributes set by ignorepath

         attributes.pop();

         return CONTINUE;

      }

      @Override

      public FileVisitResult visitFileFailed(Path file, IOException exc) {

         return CONTINUE;

      }

      public void writeFileTree() throws IOException {

         Files.walkFileTree(this.startDir, this);

      }

   }