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/*
 * Copyright 2013 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.way.base.io;

import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.List;

import br.com.objectos.core.io.Directory;

import org.joda.time.DateTime;

import com.google.common.base.Charsets;
import com.google.common.io.Files;

/**
 * @author [email protected] (Marcio Endo)
 */
public class DataFileMeta {

  final Charset charset = Charsets.UTF_8;

  final Directory directory;

  final String name;

  final File file;

  final DateTime lastModified;

  DataFileMeta(Directory directory, String name) {
    this.directory = directory;
    this.name = name;

    this.file = directory.fileAt(name);

    long lastModified = file.lastModified();
    this.lastModified = new DateTime(lastModified);
  }

  DataFileMeta(File file) {
    this.directory = Directory.parentOf(file);
    this.name = file.getName();

    this.file = file;

    long lastModified = file.lastModified();
    this.lastModified = new DateTime(lastModified);
  }

  public Directory getDirectory() {
    return directory;
  }

  public String getName() {
    return name;
  }

  public String getPath() {
    return file.getPath();
  }

  public DateTime getLastModified() {
    return lastModified;
  }

  public byte[] toByteArray() throws IOException {
    return Files.toByteArray(file);
  }

  @Override
  public String toString() {
    return file.toString();
  }

  public void copyFrom(File from) throws IOException {
    Files.copy(from, file);
  }

  public List readLines() throws IOException {
    return Files.readLines(file, charset);
  }

  public String readText() throws IOException {
    return Files.toString(file, charset);
  }

  public String readTextOr(String or) {
    try {
      return Files.toString(file, charset);
    } catch (IOException e) {
      return or;
    }
  }

  public String readTextOrEmpty() {
    return readTextOr("");
  }

  public void write(String text) throws IOException {
    Files.write(text, file, charset);
  }

  public void writeTo(File to) throws IOException {
    Files.copy(file, to);
  }

}