/*******************************************************************************
 * Copyright (c) 2018, 2020 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 app4mc.example.transform.m2t.transformers

import java.io.BufferedWriter
import java.io.File
import java.io.FileWriter
import java.util.Map
import org.eclipse.app4mc.amalthea.model.Amalthea
import org.eclipse.app4mc.transformation.ServiceConstants
import org.eclipse.app4mc.transformation.transformers.Model2TextRootTransformer
import org.eclipse.app4mc.transformation.util.PropertyUtil
import org.eclipse.emf.ecore.resource.ResourceSet
import org.osgi.service.component.annotations.Activate
import org.osgi.service.component.annotations.Component
import org.osgi.service.component.annotations.ConfigurationPolicy
import org.osgi.service.component.annotations.Reference
import org.slf4j.Logger
import org.slf4j.LoggerFactory

@Component(
	configurationPid = ServiceConstants.SESSION_CONFIGURATION_PID,
	configurationPolicy = ConfigurationPolicy.REQUIRE,
	property = #[ "transformation=Amalthea2Text" ],
	service = Model2TextRootTransformer)

class AmaltheaModel2TextTransformer extends Model2TextRootTransformer {

	static final Logger LOG = LoggerFactory.getLogger(typeof(AmaltheaModel2TextTransformer))

	@Reference
	M2T_Output_Transformer textGenerator

	String outputFolder

	@Activate
	def package void activate(Map<String, ?> properties) {
		LOG.debug("AmaltheaModel2TextTransformer activated : " + this.hashCode)

		outputFolder = PropertyUtil.getProperty("m2t_output_folder", properties)
	}

	override m2tTransformation(ResourceSet inputResourceSet) {

		for (resource : inputResourceSet.resources) {
			for (model : resource.contents) {
				LOG.info("Processing file : " + resource.URI)

				// 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
				}

				LOG.info("Script file generated at : " + outputFolder)
			}
		}
	}

}