WikiProcessors.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2022 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.Map;
import org.turro.elephant.context.IConstructor;
import org.turro.parser.MacroParser;
import org.turro.plugin.contacts.IContact;
import org.turro.reflection.Instances;
import org.turro.util.Final;
 
public class WikiProcessors {
 
  public WikiProcessors constructor(IConstructor constructor) {
    this.constructor = constructor;
    return this;
  }
  
  public WikiProcessors contact(IContact contact) {
    this.contact = contact;
    return this;
  }
  
  public String resolve(String value) {
    Final<String> result = Final.empty();
    if("@w{help}".equals(value)) {
      result.set(help());
    } else if(value.contains(MACRO_START)) {
      MacroParser.of(MACRO_START, MACRO_END).process(value, content -> {
        String name = MacroParser.macroName(content);
        Map<String, String> pars = MacroParser.parameterMap(content);
        for(IMacroProcessor processor : Instances.cached().byInterface(IMacroProcessor.class, IMacroProcessor.class)) {
          String expanded = processor.expand(constructor, contact, name, pars);
          if(expanded != null) {
            result.set(expanded);
            break;
          }
        }
      });
    }
    return result.isEmpty() ? notFound(value) : result.get();
  }
 
  public String help() {
    StringBuilder sb = new StringBuilder();
    for(IMacroProcessor processor : Instances.cached().byInterface(IMacroProcessor.class, IMacroProcessor.class)) {
      for(String name : processor.locateNames(constructor)) {
        String expanded = processor.help(constructor, name);
        if(expanded != null) {
          sb.append(expanded);
        }
      }
    }
    return sb.toString();
  }
 
  
  /* Utils */
  
  private String notFound(String value) {
    return  "<span style='color:red'>(WM " + value + ")</span>";
  }
  
  /* Factory */
  
  public static WikiProcessors instance() {
    return new WikiProcessors();
  }
  
  private static final String MACRO_START = "@w{", MACRO_END = "}";
  
  private IConstructor constructor;
  private IContact contact;
 
  private WikiProcessors() {}
    
}