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/*
 * Copyright 2016 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.html.io;

import java.io.IOException;
import java.io.InputStream;
import java.io.UncheckedIOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.stream.Stream;

import br.com.objectos.codereader.CodeReader;

/**
 * @author [email protected] (Marcio Endo)
 */
public class HtmlReader implements AutoCloseable {

  private final CodeReader reader;

  private HtmlReader(CodeReader reader) {
    this.reader = reader;
  }

  public static HtmlReader connect(String url) {
    try {
      URL theUrl = new URL(url);
      return open(theUrl.openStream());
    } catch (MalformedURLException e) {
      throw new IllegalArgumentException("Not a valid url: " + url);
    } catch (IOException e) {
      throw new UncheckedIOException(e);
    }
  }

  public static HtmlReader open(InputStream in) {
    CodeReader reader = CodeReader.open(in);
    return new HtmlReader(reader);
  }

  @Override
  public void close() throws IOException {
    reader.close();
  }

  public Stream stream() {
    return iterator().stream();
  }

  TagIterator iterator() {
    return TagIterator.of(reader);
  }

}