/*
 * Copyright 2010 Daniel Kurka
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */
package com.googlecode.gwtphonegap.client.file.browser;

import com.googlecode.gwtphonegap.client.file.DirectoryEntry;
import com.googlecode.gwtphonegap.client.file.DirectoryReader;
import com.googlecode.gwtphonegap.client.file.EntryBase;
import com.googlecode.gwtphonegap.client.file.FileCallback;
import com.googlecode.gwtphonegap.client.file.FileEntry;
import com.googlecode.gwtphonegap.client.file.FileError;
import com.googlecode.gwtphonegap.client.file.Flags;
import com.googlecode.gwtphonegap.client.file.Metadata;
import com.googlecode.gwtphonegap.client.file.browser.dto.FileSystemEntryDTO;
import com.googlecode.gwtphonegap.client.file.browser.service.FileSystemController;
import com.googlecode.gwtphonegap.collection.shared.LightArray;

public class DirectoryEntryBrowserImpl implements DirectoryEntry, EntryBase {

  private final FileSystemController controller;

  private FileSystemEntryDTO dto;

  public DirectoryEntryBrowserImpl(FileSystemEntryDTO dto, FileSystemController controller) {
    this.controller = controller;
    this.dto = dto;
  }

  @Override
  public String getName() {
    return dto.getName();
  }

  @Override
  public String getFullPath() {
    return dto.getFullPath();
  }

  @Override
  public void getMetadata(FileCallback<Metadata, FileError> callback) {
    controller.getMetaData(getFullPath(), callback);

  }

  @Override
  public void moveTo(DirectoryEntry parent, String newName,
      FileCallback<DirectoryEntry, FileError> callback) {
    controller.moveDirectory(getFullPath(), parent.getFullPath(), newName, callback);
  }

  @Override
  public void copyTo(DirectoryEntry parent, String newName,
      FileCallback<DirectoryEntry, FileError> callback) {
    controller.copyDirectory(getFullPath(), parent.getFullPath(), newName, callback);

  }

  @Override
  public String toURI() {
    return controller.toURI(getFullPath());
  }

  @Override
  public void remove(FileCallback<Boolean, FileError> callback) {
    controller.removeDirectory(getFullPath(), callback);

  }

  @Override
  public void getParent(FileCallback<DirectoryEntry, FileError> callback) {

    String fullPath = getFullPath();

    controller.readParent(fullPath, callback);

  }

  @Override
  public DirectoryReader createReader() {
    return new DirectoryReader() {

      @Override
      public void readEntries(final FileCallback<LightArray<EntryBase>, FileError> callback) {
        controller.readDirectory(dto.getFullPath(), callback);

      }
    };
  }

  @Override
  public void getDirectory(String path, Flags flags,
      FileCallback<DirectoryEntry, FileError> callback) {
    String absPath;
    if (path.startsWith("/")) {
      // absolute
      absPath = path;
    } else {
      absPath = getFullPath() + "/" + path;
    }
    controller.getDirectory(absPath, flags, callback);

  }

  @Override
  public void getFile(String path, Flags flags, FileCallback<FileEntry, FileError> callback) {
    String absPath;
    if (path.startsWith("/")) {
      // absolute
      absPath = path;
    } else {
      absPath = getFullPath() + "/" + path;
    }
    controller.getFile(absPath, flags, callback);

  }

  @Override
  public void removeRecursively(FileCallback<Boolean, FileError> callback) {
    controller.removeRecursively(getFullPath(), callback);

  }

  @Override
  public boolean isFile() {
    return false;
  }

  @Override
  public boolean isDirectory() {
    return true;
  }

  @Override
  public FileEntry getAsFileEntry() {
    throw new RuntimeException();
  }

  @Override
  public DirectoryEntry getAsDirectoryEntry() {
    return this;
  }

  @Override
  public String toURL() {
    return controller.toURI(getFullPath());
  }

}