/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.juneau.html;

import static org.apache.juneau.commons.utils.Utils.*;

import org.apache.juneau.*;
import org.apache.juneau.commons.reflect.*;
import org.apache.juneau.cp.*;
import org.apache.juneau.html.annotation.*;

/**
 * Metadata on bean properties specific to the HTML serializers and parsers pulled from the {@link Html @Html}
 * annotation on the bean property.
 *
 * <h5 class='section'>See Also:</h5><ul>
 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/HtmlBasics">HTML Basics</a>

 * </ul>
 */
@SuppressWarnings("rawtypes")
public class HtmlBeanPropertyMeta extends ExtendedBeanPropertyMeta {

   static class Builder {
      boolean noTables, noTableHeaders;
      HtmlFormat format = HtmlFormat.HTML;
      BeanCreator<HtmlRender> render = BeanCreator.of(HtmlRender.class);
      String link, anchorText, style;

      void findHtmlInfo(Html html) {
         if (html == null)
            return;
         format = html.format();
         if (html.noTables())
            noTables = html.noTables();
         if (html.noTableHeaders())
            noTableHeaders = html.noTableHeaders();
         if (html.render() != HtmlRender.class)
            render.type(html.render());
         if (! html.link().isEmpty())
            link = html.link();
         if (! html.anchorText().isEmpty())
            anchorText = html.anchorText();
         if (! html.style().isEmpty())
            style = html.style();
      }
   }

   /**
    * Default instance.
    */
   public static final HtmlBeanPropertyMeta DEFAULT = new HtmlBeanPropertyMeta();
   private final boolean noTables, noTableHeaders;
   private final HtmlFormat format;
   private final HtmlRender render;

   private final String link, anchorText, style;

   /**
    * Constructor.
    *
    * @param bpm The metadata of the bean property of this additional metadata.
    * @param ap The annotation provider.
    * @param mp HTML metadata provider (for finding information about other artifacts).
    */
   public HtmlBeanPropertyMeta(BeanPropertyMeta bpm, AnnotationProvider ap, HtmlMetaProvider mp) {
      super(bpm);

      var b = new Builder();
      if (nn(bpm.getInnerField()))
         ap.find(Html.class, bpm.getInnerField()).forEach(x -> b.findHtmlInfo(x.inner()));
      if (nn(bpm.getGetter()))
         ap.find(Html.class, bpm.getGetter()).forEach(x -> b.findHtmlInfo(x.inner()));
      if (nn(bpm.getSetter()))
         ap.find(Html.class, bpm.getSetter()).forEach(x -> b.findHtmlInfo(x.inner()));

      format = b.format;
      noTables = b.noTables;
      noTableHeaders = b.noTableHeaders;
      render = b.render.orElse(null);
      link = b.link;
      anchorText = b.anchorText;
      style = b.style;
   }

   private HtmlBeanPropertyMeta() {
      super(null);
      this.format = HtmlFormat.HTML;
      this.noTables = false;
      this.noTableHeaders = false;
      this.render = null;
      this.link = null;
      this.anchorText = null;
      this.style = null;
   }

   /**
    * Specifies the anchor text for this property.
    *
    * <p>
    * This value is specified via the {@link Html#anchorText() @Html(anchorText)} annotation.
    *
    * @return The link string, or <jk>null</jk> if not specified.
    */
   public String getAnchorText() { return anchorText; }

   /**
    * Adds a hyperlink to this value in HTML.
    *
    * <p>
    * This value is specified via the {@link Html#link() @Html(link)} annotation.
    *
    * @return The link string, or <jk>null</jk> if not specified.
    */
   public String getLink() { return link; }

   /**
    * Returns the render class for rendering the style and contents of this property value in HTML.
    *
    * <p>
    * This value is specified via the {@link Html#render() @Html(render)} annotation.
    *
    * @return The render class, never <jk>null</jk>.
    */
   public HtmlRender getRender() { return render; }

   /**
    * Returns the CSS style string for this property.
    *
    * <p>
    * This value is specified via the {@link Html#style() @Html(style)} annotation.
    *
    * @return The CSS style string, or <jk>null</jk> if not specified.
    */
   public String getStyle() { return style; }

   /**
    * Returns whether this bean property should not include table headers when serialized as an HTML table.
    *
    * @return
    *    <jk>true</jk> if the the {@link Html @Html} annotation is specified, and {@link Html#noTableHeaders() @Html(noTableHeaders)} is
    *    <jk>true</jk>.
    */
   public boolean isNoTableHeaders() { return noTableHeaders; }

   /**
    * Returns the format of this bean property
    *
    * @return The value of the {@link Html#format()} annotation.
    */
   protected HtmlFormat getFormat() { return format; }

   /**
    * Returns <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#HTML}.
    *
    * @return <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#HTML}.
    */
   protected boolean isHtml() { return format == HtmlFormat.HTML; }

   /**
    * Returns <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#HTML_CDC}.
    *
    * @return <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#HTML_CDC}.
    */
   protected boolean isHtmlCdc() { return format == HtmlFormat.HTML_CDC; }

   /**
    * Returns <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#HTML_SDC}.
    *
    * @return <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#HTML_SDC}.
    */
   protected boolean isHtmlSdc() { return format == HtmlFormat.HTML_SDC; }

   /**
    * Returns whether this bean property should not be serialized as an HTML table.
    *
    * @return
    *    <jk>true</jk> if the the {@link Html @Html} annotation is specified, and {@link Html#noTables() @Html(noTables)} is
    *    <jk>true</jk>.
    */
   protected boolean isNoTables() { return noTables; }

   /**
    * Returns <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#PLAIN_TEXT}.
    *
    * @return <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#PLAIN_TEXT}.
    */
   protected boolean isPlainText() { return format == HtmlFormat.PLAIN_TEXT; }

   /**
    * Returns <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#XML}.
    *
    * @return <jk>true</jk> if {@link #getFormat()} returns {@link HtmlFormat#XML}.
    */
   protected boolean isXml() { return format == HtmlFormat.XML; }
}