/*******************************************************************************
 * Copyright (c) 2018 Robert Bosch GmbH.
 * 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:
 *     Robert Bosch GmbH - initial API and implementation
 *******************************************************************************/

package templates

import java.io.BufferedWriter
import java.io.File
import java.io.FileWriter
import org.apache.felix.service.command.CommandProcessor
import org.eclipse.app4mc.amalthea.model.Amalthea
import org.eclipse.app4mc.transformation.extensions.ICustomObjectsStore
import org.eclipse.app4mc.transformation.extensions.base.templates.Model2TextRootTransformer
import org.eclipse.emf.ecore.resource.ResourceSet
import org.osgi.service.component.annotations.Component
import org.osgi.service.component.annotations.Reference
import org.osgi.service.component.annotations.ReferencePolicyOption

@Component(property=#[
//	CommandProcessor.COMMAND_SCOPE + ":String=app4mc",
	"transformation=Amalthea2Text"
], service=Model2TextRootTransformer)
class AmaltheaModel2TextTransformer extends Model2TextRootTransformer {

	@Reference
	ICustomObjectsStore customObjsStore

	@Reference 
	M2T_Output_Transformer textGenerator

	override m2tTransformation(ResourceSet inputResourceSet) {

		for (resource : inputResourceSet.resources) {
			for (model : resource.contents) {
				// TODO: model is a Amalthea model
				// check javadoc : https://www.eclipse.org/xtend/documentation/204_activeannotations.html#active-annotations-expression 
				customObjsStore.getLogger().info("Processing file : " + resource.URI)

				var String outputFolder = getProperty("m2t_output_folder", customObjsStore);
//				val textGenerator = new M2T_Output_Transformer
				// ===== output 1 =====
				var outputFile1 = new File(outputFolder, "1.txt")
				outputFile1.parentFile.mkdirs
				outputFile1.createNewFile

				if (model instanceof Amalthea) {
					val text = textGenerator.generateOutput1(model as Amalthea)

					/*saving buffer into file */
					val bufferedWriter = new BufferedWriter(new FileWriter(outputFile1))
					bufferedWriter.write(text)
					bufferedWriter.close
				}

				// ===== output 2 =====
				var outputFile2 = new File(outputFolder, "2.txt")
				outputFile2.parentFile.mkdirs
				outputFile2.createNewFile

				if (model instanceof Amalthea) {
					val text = textGenerator.generateOutput2(model)

					/*saving buffer into file */
					val bufferedWriter = new BufferedWriter(new FileWriter(outputFile2))
					bufferedWriter.write(text)
					bufferedWriter.close
				}

				// TODO: save the file here
				customObjsStore.logger.info("Script file generated at : " + outputFolder)
			}
		}

	}
}