import java.util.concurrent.BlockingQueue

import org.antlr.stringtemplate.StringTemplate
import org.antlr.stringtemplate.StringTemplateGroup
import org.antlr.stringtemplate.language.DefaultTemplateLexer

import eu.dnetlib.enabling.manager.msro.hope.groovy.RunnableGroovy
import eu.dnetlib.hope.domains.common.LandingPage
import eu.dnetlib.hope.domains.common.OAIHeader
import eu.dnetlib.hope.domains.visual.LIDOCollection
import eu.dnetlib.hope.domains.visual.LidoDescription
import eu.dnetlib.hope.domains.visual.LidoPlace
import eu.dnetlib.hope.domains.visual.LidoTitle
import eu.dnetlib.hope.domains.visual.TypedSubjects

class FESBannersLIDO implements RunnableGroovy  {
	def String templatePath = "/var/lib/hope-scripts/templates"
	def FESLidoUtils utils = new FESLidoUtils()
	def BlockingQueue<String> resultsQueue, inputQueue;
	def String repositoryId = "";

	/**
	 * Driver namespace for elements in the OAI header.
	 */
	def dri = new groovy.xml.Namespace("http://www.driver-repository.eu/namespace/dri", 'dri')
	def String collectionID = 'Fahnensammlung'
	String providerName = "Archiv der sozialen Demokratie (AdsD)"

	def generateCollectionRecord = { template,  dateOfCollection, setSpec->
		def String lPageURL = 'http://archiv2.fes.de/dok_start.fau?prj=fes&amp;dm=Fahnen'
		def String abstractSum='Die Sammlung enthält vornehmlich Fahnen der SPD und der Gewerkschaftsbewegung.'
		def OAIHeader collOaiheader = new OAIHeader(dateOfCollection:dateOfCollection, repositoryId:repositoryId, setSpec:setSpec, identifier:collectionID, objIdentifier:repositoryId+"::"+collectionID)
		def LIDOCollection coll = new LIDOCollection(collectionID:collectionID,
		langCode:'deu', titles:[
			new LidoTitle(value:'banners')
		],
		abstractSummaries:[
			new LidoDescription(type:'abstract', value:abstractSum)
		],
		creationDates:['1832-1997'], accumulationDates:['2001-2007'], owners:[providerName],
		sizeItems:'73', itemType:'IMAGE', itemFormatStm:'',
		associatedPub:'',
		typedSubjects:[
			new TypedSubjects(type:'association', dates:['1832-1997'], places:[
				new LidoPlace(preferredName:'DE')
			])
		],
		subjects:[''], repository:providerName,
		useRights:"Die Nutzung setzt eine Zustimmung des AdsD oder des jeweiligen Rechteinhabers voraus",
		accessRights:'Weitere Informationen finden Sie auf unseren Websites',
		collItemLanguages:['deu', 'zxx'],
		europeanaType:'IMAGE', landingPage:new LandingPage(href:lPageURL, localID:this.collectionID))
		def String collection = coll.getXML(template, collOaiheader, providerName, coll)
		return collection
	}

	@Override
	public void run() {
		def StringTemplateGroup group =  new StringTemplateGroup("visualGroup", templatePath, DefaultTemplateLexer.class);
		def StringTemplate template = group.getInstanceOf("visualTemplate");
		def parser = new groovy.util.XmlParser(false, true)
		def String input;
		def String collection = generateCollectionRecord(template,'', '')
		resultsQueue.put(collection);
		def c = 1;
		while(!((input = this.inputQueue.take()).equals("END"))){

			def Node xmlRoot = parser.parseText(input)

			def Node oaiHeaderNode = xmlRoot.'**'.header[0]
			//Common OAI Header elements
			def String dateOfCollection = oaiHeaderNode.'dri:dateOfCollection'.text()
			def String setSpec = oaiHeaderNode.setSpec.text()

			//def Node fesRoot = xmlRoot.'**'.Fahnen[0];
			def NodeList objects = xmlRoot.'**'.Objekt
			if(objects.size() > 1)
				println "Found "+objects.size()+" Objekts"

			objects.each {
				String lidoObject = utils.transformObjekt(it, template, dateOfCollection, repositoryId, setSpec, collectionID, true)
				//Hack for resolved XML entities...
				lidoObject = lidoObject.replace("&", "&amp;")
				//add the Lido Element generated from the current (it) FaustObjekt
				resultsQueue.put(lidoObject);
				c++;
				//			println lidoObject
				//		println "***************"
				template.reset()
			}
		}
		println c +" lido objects enueued"
		this.resultsQueue.put("END")
		println "closedQueue"
	}

	@Override
	public void setResultsQueue(BlockingQueue<String> queue) {
		this.resultsQueue = queue

	}

	@Override
	public void setInputQueue(BlockingQueue<String> queue) {
		this.inputQueue = queue
	}

	/**
	 * TODO: calling the method from the run() does not work. Kinda groovy strange stuff, I do not know why.
	 */
	@Override
	public void closeResultQueue() {
		this.resultsQueue.put("END")
		println "closedQueue"
	}

	@Override
	public void setRepositoryId(String repoId) {this.repositoryId = repoId}

}