WikiCompiler.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2023 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.parser.wiki;
 
import java.util.ArrayList;
import java.util.List;
import org.turro.elephant.context.Application;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.context.IConstructor;
import org.turro.elephant.impl.util.Parser;
import org.turro.wiki.WikiParser;
import org.turro.wiki.WikiResult;
import org.turro.wiki.parsing.IWikiResolver;
 
public class WikiCompiler {
 
  public String html() {
    String html;
    if(elWiki) {
      WikiResult result = WikiParser.instance()
              .onProcessor(wmacro -> WikiProcessors.instance().constructor(constructor()).resolve(wmacro))
              .addResolvers(resolvers)
              .parse(source);
      html = result.getHtml();
    } else {
      Parser parser = new Parser("$wiki\n" + source);
      parser.setResolver(w -> {
        for(IWikiResolver resolver : resolvers) {
          w = resolver.apply(w);
        }
        return w;
      });
      html = parser.parse(constructor());
    }
    return (preview ? styleSheets() : "") + html;
  }
  
  /* ElWiki */
  
  private boolean elWiki;
  
  public WikiCompiler elWiki() {
    elWiki = true;
    return this;
  }
  
  public WikiCompiler legacy() {
    elWiki = false;
    return this;
  }
  
  /* Constructor */
  
  private IConstructor constructor;
  
  public WikiCompiler constructor(IConstructor constructor) {
    this.constructor = constructor;
    return this;
  }
  
  private IConstructor constructor() {
    if(constructor == null) {
      constructor = Application.getApplication().getConstructor();
    }
    return constructor;
  }
  
  /* Resolvers */
  
  private final List<IWikiResolver> resolvers = new ArrayList<>();
  
  public WikiCompiler resolver(IWikiResolver resolver) {
    if(resolver != null) resolvers.add(resolver);
    return this;
  }
  
  /* Style sheets */
  
  private String styleSheets() {
    return "<link rel=\"stylesheet\" type=\"text/css\" href=\"" +
            ElephantContext.getRootWebPath() + "/_internal/css/elephant-theme.css" +
            "\"/>\n";
  }
  
  /* Factory */
  
  public static WikiCompiler source(String source) {
    return new WikiCompiler(source, false);
  }
  
  public static WikiCompiler preview(String source) {
    return new WikiCompiler(source, true);
  }
  
  private final String source;
  private final boolean preview;
  
  private WikiCompiler(String source, boolean preview) {
    this.source = source;
    this.preview = preview;
    this.elWiki = WikiParser.isElWiki(source);
  }
  
}