/*******************************************************************************
 * Copyright (c) 2012 Association for Decentralized Information Management in
 * Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.document.function;

import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.layer0.variable.Variable;
import org.simantics.document.DocumentResource;
import org.simantics.document.DocumentSettings;
import org.simantics.document.DocumentUtils;
import org.simantics.document.Exportable;
import org.simantics.document.node.Composite;
import org.simantics.scenegraph.loader.ScenegraphLoaderProcess;
import org.simantics.scenegraph.loader.ScenegraphLoaderUtils;
import org.simantics.scl.reflection.annotations.SCLValue;

public class All {
    
    @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
    public static Variable documentationRootVariable(ReadGraph graph, Resource resource, Variable context) throws DatabaseException {
    	return ScenegraphLoaderUtils.getVariableSelection(graph, context);
    }

    @SCLValue(type = "ReadGraph -> Resource -> Variable -> String")
    public static String documentationText(ReadGraph graph, Resource resource, Variable context) throws DatabaseException {
    	
    	DocumentResource DOC = DocumentResource.getInstance(graph);
    	Variable sel = ScenegraphLoaderUtils.getVariableSelection(graph, context);
    	
    	Resource represents = sel.getPossibleRepresents(graph);
    	Resource doc = graph.getSingleObject(represents, DOC.HasDocumentation);
    	Resource scenegraph = graph.getSingleObject(doc, DOC.ScenegraphDocument_scenegraph);
    	
		ScenegraphLoaderProcess loader = new ScenegraphLoaderProcess(new Composite(), "All.documentationText");
		WikiDocumentNodeImpl node = loader.load(graph, scenegraph, ScenegraphLoaderUtils.getRuntime(graph, context));
		StringBuilder b = new StringBuilder();
		node.create(b, false);
		loader.dispose();

		DocumentUtils du = new DocumentUtils();
		StringBuilder css = new StringBuilder();
		du.getDocumentCSSText(graph, represents, css);
		DocumentSettings settings = du.getDocumentSettings(graph, represents);
		Exportable e = new Exportable(graph, represents, b.toString(), css.toString(), settings, false);
		return e.getHTML();
    	
    }
    
    @SCLValue(type = "ReadGraph -> Resource -> Variable -> String")
    public static String standardEditText(ReadGraph graph, Resource resource, Variable context) throws DatabaseException {
    	Variable location = context.getParent(graph);
    	StringBuilder result = new StringBuilder();
    	String path = ScenegraphLoaderUtils.getPath(graph, location);
    	for(Variable property : location.browseProperties(graph)) {
    		if(property.getPossibleProperty(graph, "userProperty") != null) {
    			String name = property.getName(graph);
    			result.append("[http://variable" + path + "#" + name + " [edit " + name + "]] ");
    		}
    	}
    	return result.toString();
    }

}