src/main/kotlin/net/pterodactylus/rhynodge/filters/webpages/savoy/SavoyMerger.kt

   1 package net.pterodactylus.rhynodge.filters.webpages.savoy
   2
   3 import net.pterodactylus.rhynodge.Merger
   4 import net.pterodactylus.rhynodge.State
   5 import org.apache.log4j.Logger
   6
   7 class SavoyMerger : Merger {
   8
   9         override fun mergeStates(previousState: State, currentState: State): State {
  10                 previousState as? MovieState ?: throw IllegalArgumentException("previousState is not a MovieState")
  11                 currentState as? MovieState ?: throw IllegalArgumentException("currentState is not a MovieState")
  12                 logger.debug("previousState: $previousState")
  13                 logger.debug("currentState: $currentState")
  14
  15                 val newMovies = currentState.movies
  16                         .filter { it.name !in previousState.movies.map(Movie::name) }
  17                 logger.debug("newMovies: $newMovies")
  18
  19                 val hasChangedPerformances = newMovies.isNotEmpty() ||
  20                                 previousState.movies.map { movie -> movie.name to movie.performances.map { performance -> performance.time.toLocalDate() }.distinct().sorted() }.sortedBy(Pair<String, *>::first) !=
  21                                 currentState.movies.map { movie -> movie.name to movie.performances.map { performance -> performance.time.toLocalDate() }.distinct().sorted() }.sortedBy(Pair<String, *>::first)
  22                 logger.debug("hasChangedPerformances: $hasChangedPerformances")
  23
  24                 return MovieState(currentState.movies, newMovies, hasChangedPerformances)
  25         }
  26
  27 }
  28
  29 private val logger = Logger.getLogger(SavoyMerger::class.java)