/*******************************************************************************
 *  Imixs Workflow 
 *  Copyright (C) 2001, 2011 Imixs Software Solutions GmbH,  
 *  http://www.imixs.com
 *  
 *  This program is free software; you can redistribute it and/or 
 *  modify it under the terms of the GNU General Public License 
 *  as published by the Free Software Foundation; either version 2 
 *  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 
 *  General Public License for more details.
 *  
 *  You can receive a copy of the GNU General Public
 *  License at http://www.gnu.org/licenses/gpl.html
 *  
 *  Project: 
 *  	http://www.imixs.org
 *  	http://java.net/projects/imixs-workflow
 *  
 *  Contributors:  
 *  	Imixs Software Solutions GmbH - initial API and implementation
 *  	Ralph Soika - Software Developer
 *******************************************************************************/

package ai.dynamixs.a2a;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.imixs.workflow.ItemCollection;
import org.imixs.workflow.ModelManager;
import org.imixs.workflow.engine.ModelService;
import org.imixs.workflow.engine.WorkflowService;
import org.imixs.workflow.exceptions.ModelException;
import org.imixs.workflow.exceptions.PluginException;
import org.openbpmn.bpmn.BPMNModel;

import jakarta.annotation.security.DeclareRoles;
import jakarta.annotation.security.RolesAllowed;
import jakarta.ejb.LocalBean;
import jakarta.ejb.Stateless;
import jakarta.inject.Inject;

/**
 * The A2ASkillService parses the model information to provide A2ASkillCards
 * 
 * @author rsoika
 */
@DeclareRoles({ "org.imixs.ACCESSLEVEL.NOACCESS",
		"org.imixs.ACCESSLEVEL.READERACCESS",
		"org.imixs.ACCESSLEVEL.AUTHORACCESS",
		"org.imixs.ACCESSLEVEL.EDITORACCESS",
		"org.imixs.ACCESSLEVEL.MANAGERACCESS" })
@RolesAllowed({ "org.imixs.ACCESSLEVEL.NOACCESS",
		"org.imixs.ACCESSLEVEL.READERACCESS",
		"org.imixs.ACCESSLEVEL.AUTHORACCESS",
		"org.imixs.ACCESSLEVEL.EDITORACCESS",
		"org.imixs.ACCESSLEVEL.MANAGERACCESS" })
@Stateless
@LocalBean
public class A2ASkillService {

	@Inject
	ModelService modelService;

	@Inject
	WorkflowService workflowService;

	private static Logger logger = Logger.getLogger(A2ASkillService.class
			.getName());

	/**
	 * This method iterates over all models and returns a list of skill card objects
	 * 
	 * The method tests if a event has a <imixs-ai name="SKILL"> tag.
	 * 
	 */
	public List<A2ASkillCard> parseModels() {
		logger.log(Level.INFO, "├── 🔃 parsing A2A SkillCards....");
		List<A2ASkillCard> result = new ArrayList<>();
		ModelManager modelManager = new ModelManager(workflowService);
		List<String> versions = modelService.getVersions();

		try {

			for (String version : versions) {
				logger.log(Level.INFO, "│   ├── {0}", version);
				BPMNModel model = modelManager.getModel(version);

				Set<String> groups = modelManager.findAllGroupsByModel(model);
				for (String group : groups) {
					List<ItemCollection> tasks = modelManager.findTasks(model, group);
					for (ItemCollection task : tasks) {
						int taskID = task.getItemValueInteger("taskid");
						List<ItemCollection> events = modelManager.findEventsByTask(model, taskID);

						for (ItemCollection event : events) {
							int eventID = event.getItemValueInteger("eventid");
							// test if we have a <imixs-ai name="SKILL">
							try {
								List<ItemCollection> llmPromptDefinitions = workflowService.evalWorkflowResultXML(event,
										"imixs-ai",
										"SKILL", null, false);
								// did we found a skill?
								for (ItemCollection skillItemCol : llmPromptDefinitions) {
									A2ASkillCard skillCard = new A2ASkillCard(version, taskID, eventID);

									skillCard.setName(event.getItemValueString("name"));
									skillCard.setDescription(skillItemCol.getItemValueString("description"));
									String tags = skillItemCol.getItemValueString("tags");
									if (tags != null && !tags.isBlank()) {
										String[] parts = tags.split(",\\s*");
										skillCard.setTags(Arrays.asList(parts));
									}

									skillCard.setExamples(skillItemCol.getItemValueList("example", String.class));

									// skillCard.addMetadata("aea", versions);

									if (skillCard.isValid()) {
										result.add(skillCard);
									}

								}

							} catch (PluginException e) {
								// no match
							}

						}
					}

				}

			}
		} catch (ModelException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return result;

	}

}