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// The MIT License (MIT)
// Copyright © 2015 AppsLandia. All rights reserved.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package com.appslandia.plum.utils;

import java.io.IOException;
import java.io.Writer;
import java.util.Map;
import java.util.function.Function;

import com.appslandia.common.utils.XmlEscaper;

/**
 *
 * @author Loc Ha
 *
 */
public class HtmlUtils {

  public static void hidden(Writer out) throws IOException {
    out.write(" hidden=\"hidden\"");
  }

  public static void disabled(Writer out) throws IOException {
    out.write(" disabled=\"disabled\"");
  }

  public static void readonly(Writer out) throws IOException {
    out.write(" readonly=\"readonly\"");
  }

  public static void required(Writer out) throws IOException {
    out.write(" required=\"required\"");
  }

  public static void autofocus(Writer out) throws IOException {
    out.write(" autofocus=\"autofocus\"");
  }

  public static void checked(Writer out) throws IOException {
    out.write(" checked=\"checked\"");
  }

  public static void selected(Writer out) throws IOException {
    out.write(" selected=\"selected\"");
  }

  public static void hardWrap(Writer out) throws IOException {
    out.write(" wrap=\"hard\"");
  }

  public static void multiple(Writer out) throws IOException {
    out.write(" multiple=\"multiple\"");
  }

  public static void novalidate(Writer out) throws IOException {
    out.write(" novalidate=\"novalidate\"");
  }

  public static void escAttribute(Writer out, String name, String value) throws IOException {
    out.write(' ');
    out.write(name);
    out.write("=\"");
    if (value != null) {
      XmlEscaper.escapeXml(out, value);
    }
    out.write('"');
  }

  public static void writeAttributes(Writer out, Map attributes,
      Function excludeFilter) throws IOException {
    for (Map.Entry attr : attributes.entrySet()) {
      if (attr.getValue() == null) {
        continue;
      }
      if (excludeFilter != null && excludeFilter.apply(attr.getKey())) {
        continue;
      }

      out.write(' ');
      out.write(attr.getKey());
      out.write("=\"");
      XmlEscaper.escapeXml(out, attr.getValue().toString());
      out.write('"');
    }
  }

  public static String toValueTagId(String fieldName) {
    int len = fieldName.length();
    int i = -1;
    char buf[] = new char[fieldName.length()];

    while (i < len - 1) {
      i++;
      char c = fieldName.charAt(i);
      buf[i] = ((c == '.') || (c == '[') || (c == ']')) ? ('_') : c;
    }
    return new String(buf);
  }
}