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/*
 * Copyright 2015 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.io.flat;

import java.io.IOException;
import java.util.Objects;
import java.util.Set;

import br.com.objectos.io.flat.annotation.TextOption;

import com.google.common.collect.ImmutableSet;

/**
 * @author [email protected] (Marcio Endo)
 */
class TextField extends Field {

  private final String value;
  private final int length;
  private final Set optionSet;

  private TextField(String value, int length, Set optionSet) {
    this.value = value;
    this.length = length;
    this.optionSet = optionSet;
  }

  public static TextField get(String value, int length, TextOption... options) {
    Objects.requireNonNull(value, "value");
    Set optionSet = ImmutableSet.copyOf(options);
    return new TextField(value, length, optionSet);
  }

  @Override
  void tryToWriteTo(FlatAppendable out) throws IOException {
    String text = value;

    for (TextTransformation transformation : TextTransformation.values()) {
      if (transformation.matches(optionSet)) {
        text = transformation.apply(text, length);
      }
    }

    out.append(text);
  }

}