/*******************************************************************************
 * This file is part of the Symfony eclipse plugin.
 *
 * (c) Robert Gruendler <r.gruendler@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 ******************************************************************************/
package com.dubture.symfony.core.codeassist.contexts;

import java.util.List;

import org.eclipse.dltk.core.CompletionRequestor;
import org.eclipse.dltk.core.ISourceModule;
import org.eclipse.dltk.core.IType;
import org.eclipse.php.internal.core.codeassist.contexts.GlobalStatementContext;
import org.eclipse.php.internal.core.util.text.TextSequence;

import com.dubture.symfony.core.index.SymfonyElementResolver.TemplateField;
import com.dubture.symfony.core.log.Logger;
import com.dubture.symfony.core.model.SymfonyModelAccess;
import com.dubture.symfony.core.util.PathUtils;


/**
 *
 * A context for template variables, ie
 *
 *
 *  <pre>
 *
 *  // ../Resources/views/Demo/index.php
 *
 *  <?php | <-- valid context
 *
 *  </pre>
 *
 *
 *
 *
 * @author Robert Gruendler <r.gruendler@gmail.com>
 *
 */
@SuppressWarnings("restriction")
public class TemplateVariableContext extends GlobalStatementContext {

    private List<TemplateField> variables = null;
    private String viewPath = null;


    @Override
    public boolean isValid(ISourceModule sourceModule, int offset,
            CompletionRequestor requestor) {

        if (super.isValid(sourceModule, offset, requestor)) {

            try {

//                if (!hasWhitespaceBeforeCursor()) {
//                    return false;
//                }

                TextSequence statementText = getStatementText();

                if (statementText.toString().indexOf("->") > -1) {
                    return false;
                }

                SymfonyModelAccess model = SymfonyModelAccess.getDefault();
                ISourceModule module = getSourceModule();
                IType controller = model.findControllerByTemplate(module);
                variables = model.findTemplateVariables(controller);
                viewPath = PathUtils.createViewPathFromTemplate(getSourceModule(), false);

                return true;


            } catch (Exception e) {
                Logger.logException(e);
                return false;
            }
        }

        return false;
    }

    /**
    *
    * Return the variables available in this view.
    *
    *
    * @return
    */
    public List<TemplateField> getVariables() {

        return variables;

    }

    /**
    * Return the path of this view in the form
    *
    * BundleName:Controller:View
    *
    * @return
    */
    public String getViewPath() {

        return viewPath;
    }
}