package net.pterodactylus.rhynodge.filters.webpages.savoy

import net.pterodactylus.rhynodge.Filter
import net.pterodactylus.rhynodge.State
import net.pterodactylus.rhynodge.states.HtmlState
import org.apache.log4j.Logger

/**
 * [Filter] implementation that creates a list of movies running at the
 * Savoy theatre in Hamburg.
 */
class SavoyTicketsFilter : Filter {

	override fun filter(state: State) =
		requireNotNull(state as? HtmlState) { "state must be HTML" }
			.document()
			.let(movieExtractor::getMovies)
			.also { logger.debug("Parsed Movies: $it") }
			.let { MovieState(it, emptySet(), false) }

}

private val logger = Logger.getLogger(SavoyTicketsFilter::class.java)
private val movieExtractor = MovieExtractor()