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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.args;

import br.com.objectos.code.EnumConstantInfo;

import com.squareup.javapoet.ClassName;

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

  private final EnumConstantInfo info;
  private final ClassName enumClassName;

  private EnumConstantInfoProperty(EnumConstantInfo info, ClassName enumClassName) {
    this.info = info;
    this.enumClassName = enumClassName;
  }

  public static EnumConstantInfoProperty of(EnumConstantInfo info) {
    return new EnumConstantInfoProperty(
        info,
        info.enumType().className());
  }

  void accept(EnumOptionPropertyCodeBuilder builder) {
    builder.addLine(".option($L).ifPresent($T.$L)", names(), enumClassName, info.name());
  }

  private String names() {
    return "\"" + normalize(info.name()) + "\"";
  }

  private String normalize(String name) {
    StringBuilder builder = new StringBuilder();

    char[] charArray = name.toCharArray();
    int i = 0;
    for (; i < charArray.length; i++) {
      if (charArray[i] == '_') {
        continue;
      }
      break;
    }

    for (; i < charArray.length; i++) {
      char c = charArray[i];
      builder.append(Character.toLowerCase(c));
    }

    return builder.toString();
  }

}