ref: 6a472fe3427cdf16857f62a4929861095be410a4
app/src/main/java/ml/adamsprogs/bimba/models/Timetable.kt
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package ml.adamsprogs.bimba.models import android.content.Context import com.google.gson.Gson import com.google.gson.JsonObject import com.univocity.parsers.csv.CsvParser import com.univocity.parsers.csv.CsvParserSettings import ml.adamsprogs.bimba.R import ml.adamsprogs.bimba.getColour import ml.adamsprogs.bimba.getSecondaryExternalFilesDir import ml.adamsprogs.bimba.models.gtfs.AgencyAndId import ml.adamsprogs.bimba.models.gtfs.Route import ml.adamsprogs.bimba.models.gtfs.Trip import ml.adamsprogs.bimba.models.gtfs.Calendar import ml.adamsprogs.bimba.models.suggestions.LineSuggestion import ml.adamsprogs.bimba.models.suggestions.StopSuggestion import ml.adamsprogs.bimba.secondsAfterMidnight import org.supercsv.cellprocessor.ift.CellProcessor import org.supercsv.io.CsvMapReader import org.supercsv.prefs.CsvPreference import java.io.File import java.io.FileReader import kotlin.collections.ArrayList import kotlin.collections.HashMap import kotlin.collections.HashSet import java.util.Calendar as JCalendar class Timetable private constructor() { //fixme uses much too much RAM companion object { private var timetable: Timetable? = null fun getTimetable(context: Context? = null, force: Boolean = false): Timetable { return if (timetable == null || force) if (context != null) { timetable = Timetable() timetable!!.filesDir = context.getSecondaryExternalFilesDir() val gtfsDir = File(timetable!!.filesDir, "gtfs_dir") timetable!!.agencyFile = File(gtfsDir, "agency.txt") timetable!!.calendarFile = File(gtfsDir, "calendar.txt") timetable!!.calendarDatesFile = File(gtfsDir, "calendar_dates.txt") timetable!!.feedInfoFile = File(gtfsDir, "feed_info.txt") timetable!!.routesFile = File(gtfsDir, "routes.txt") timetable!!.shapesFile = File(gtfsDir, "shapes.txt") timetable!!.stopsFile = File(gtfsDir, "stops.txt") timetable!!.stopTimesFile = File(gtfsDir, "stop_times.txt") timetable!!.tripsFile = File(gtfsDir, "trips.txt") timetable!!.stopsIndexFile = File(gtfsDir, "stop_index.txt") timetable!!.tripsIndexFile = File(gtfsDir, "trip_index.txt") timetable!! } else throw IllegalArgumentException("new timetable requested and no context given") else timetable!! } } private lateinit var agencyFile: File private lateinit var calendarFile: File private lateinit var calendarDatesFile: File private lateinit var feedInfoFile: File private lateinit var routesFile: File private lateinit var shapesFile: File private lateinit var stopsFile: File private lateinit var stopTimesFile: File private lateinit var tripsFile: File private lateinit var stopsIndexFile: File private lateinit var tripsIndexFile: File private var _stops: List<StopSuggestion>? = null private lateinit var filesDir: File private val tripsCache = HashMap<String, Array<String>>() fun refresh() { } fun getStopSuggestions(context: Context, force: Boolean = false): List<StopSuggestion> { if (_stops != null && !force) return _stops!! val settings = CsvParserSettings() settings.format.setLineSeparator("\r\n") settings.format.quote = '"' settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) val ids = HashMap<String, HashSet<AgencyAndId>>() val zones = HashMap<String, String>() val stopsFile = File(filesDir, "gtfs_files/stops.txt") parser.parseAll(stopsFile).forEach { if (it[2] !in ids) ids[it[2]] = HashSet() ids[it[2]]!!.add(AgencyAndId(it[0])) zones[it[2]] = it[5] } _stops = ids.map { val colour = when (zones[it.key]) { "A" -> "#${getColour(R.color.zoneA, context).toString(16)}" "B" -> "#${getColour(R.color.zoneB, context).toString(16)}" "C" -> "#${getColour(R.color.zoneC, context).toString(16)}" else -> "#000000" } StopSuggestion(it.key, it.value, zones[it.key]!!, colour) }.sorted() return _stops!! } fun getLineSuggestions(): List<LineSuggestion> { val routes = ArrayList<LineSuggestion>() val file = File(filesDir, "gtfs_files/routes.txt") val settings = CsvParserSettings() settings.format.setLineSeparator("\r\n") settings.format.quote = '"' settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) parser.parseAll(file).forEach { routes.add(LineSuggestion(it[2], createRoute( it[0], it[1], it[2], it[3], it[4], Integer.parseInt(it[5]), Integer.parseInt(it[6], 16), Integer.parseInt(it[7], 16) ))) } return routes.sortedBy { it.name } } fun getHeadlinesForStop(stops: Set<AgencyAndId>): Map<AgencyAndId, Pair<String, Set<String>>> { //fixme adds one (not-)random shed val trips = HashMap<String, HashSet<String>>() val routes = HashMap<String, Pair<String, String>>() val headsigns = HashMap<AgencyAndId, Pair<String, HashSet<String>>>() val stopIds = stops.map { it.id } parseStopTimesWithStopIndex(stopIds) { val stopId = it[3] // println("Parsing line ${parser.context.currentLine()}; stopId: $stopId") if (it[6] != "1") { if (trips[stopId] == null) trips[stopId] = HashSet() trips[stopId]!!.add(it[0]) } } if (tripsCache.isEmpty()) createTripCache() tripsCache.forEach { routes[it.key] = Pair(it.value[0], it.value[3]) } trips.forEach { val headsign = HashSet<String>() it.value.forEach { headsign.add("${routes[it]!!.first} → ${routes[it]!!.second}") } headsigns[AgencyAndId(it.key)] = Pair(getStopCode(AgencyAndId(it.key)), headsign) } return headsigns /* 1435 -> (AWF03, {232 → Os. Rusa}) 1436 -> (AWF04, {232 → Rondo Kaponiera}) 1437 -> (AWF02, {76 → Pl. Bernardyński, 74 → Os. Sobieskiego, 603 → Pl. Bernardyński}) 1634 -> (AWF01, {76 → Os. Dębina, 603 → Łęczyca/Dworcowa}) 171 -> (AWF42, {29 → Pl. Wiosny Ludów}) 172 -> (AWF41, {10 → Połabska, 29 → Dębiec, 15 → Budziszyńska, 10 → Dębiec, 15 → Os. Sobieskiego, 12 → Os. Sobieskiego, 6 → Junikowo, 18 → Ogrody, 2 → Ogrody}) 4586 -> (AWF73, {10 → Franowo, 29 → Franowo, 6 → Miłostowo, 5 → Stomil, 18 → Franowo, 15 → Franowo, 12 → Starołęka, 74 → Os. Orła Białego}) */ } private fun parseStopTimesWithStopIndex(stopIds: List<String>, process: (Array<String>) -> Unit) { val lines = readIndex(stopIds, File(filesDir, "gtfs_files/stop_index.yml")) parseStopTimesWithIndex(lines, process) } private fun parseStopTimesWithTripIndex(tripIds: List<String>, process: (Array<String>) -> Unit) { val lines = readIndex(tripIds, File(filesDir, "gtfs_files/trip_index.yml")) parseStopTimesWithIndex(lines, process) } private fun readIndex(ids: List<String>, indexFile: File): List<Long> { val index = HashMap<String, List<Long>>() val reader = indexFile.bufferedReader() //fixme 5s val json = Gson().fromJson(reader.readText(), JsonObject::class.java) reader.close() json.entrySet().forEach { //fixme 3s index[it.key] = ArrayList() it.value.asJsonArray.mapTo(index[it.key] as ArrayList) { it.asLong } } return index.filter { it.key in ids }.flatMap { it.value }.sorted() } private fun parseStopTimesWithIndex(lines: List<Long>, process: (Array<String>) -> Unit) { val settings = CsvParserSettings() settings.format.setLineSeparator("\r\n") settings.format.quote = '"' settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) parser.beginParsing(File(filesDir, "gtfs_files/stop_times.txt")) lines.forEach { //fixme 3s // println("At line ${parser.context.currentLine()}, skipping ${lines[lineKey] - parser.context.currentLine() - 1} lines to line ${lines[lineKey]}") parser.context.skipLines(it - parser.context.currentLine() - 1) val line = parser.parseNext() process(line) } } private fun createTripCache() { val settings = CsvParserSettings() settings.format.setLineSeparator("\r\n") settings.format.quote = '"' settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) val stopsFile = File(filesDir, "gtfs_files/trips.txt") parser.parseAll(stopsFile).forEach { tripsCache[it[2]] = it } } fun getStopName(stopId: AgencyAndId): String { val file = File(filesDir, "gtfs_files/stops.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) var row: Map<String, Any>? = null val processors = Array<CellProcessor?>(header.size, { null }) while ({ row = mapReader.read(header, processors); row }() != null) { if ((row!!["stop_id"] as String) == stopId.id) { mapReader.close() return row!!["stop_name"] as String } } mapReader.close() throw IllegalArgumentException("Stop $stopId not in store") } fun getStopCode(stopId: AgencyAndId): String { val file = File(filesDir, "gtfs_files/stops.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) var row: Map<String, Any>? = null val processors = Array<CellProcessor?>(header.size, { null }) while ({ row = mapReader.read(header, processors); row }() != null) { if ((row!!["stop_id"] as String) == stopId.id) { mapReader.close() return row!!["stop_code"] as String } } mapReader.close() throw IllegalArgumentException("Stop $stopId not in store") } fun getLineNumber(lineId: AgencyAndId): String { val file = File(filesDir, "gtfs_files/routes.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) var row: Map<String, Any>? = null val processors = Array<CellProcessor?>(header.size, { null }) while ({ row = mapReader.read(header, processors); row }() != null) { if ((row!!["route_id"] as String) == lineId.id) { mapReader.close() return row!!["route_short_name"] as String } } mapReader.close() throw IllegalArgumentException("Route $lineId not in store") } fun getStopDepartures(stopId: AgencyAndId): Map<AgencyAndId, List<Departure>> { println("getStopDepartures: ${JCalendar.getInstance().timeInMillis}") // val trips = getTripsForStop(stopId) val trips = HashMap<String, Trip>() tripsCache.forEach { trips[it.key] = tripFromCache(it.key) } val segment = StopSegment(stopId, null) segment.fillPlates() return getStopDeparturesBySegment(segment, trips) } fun getStopDeparturesBySegment(segment: StopSegment) = getStopDeparturesBySegment(segment, getTripsForStop(segment.stop)) private fun getStopDeparturesBySegment(segment: StopSegment, trips: Map<String, Trip>): HashMap<AgencyAndId, List<Departure>> { println("getStopDeparturesBySegment: ${JCalendar.getInstance().timeInMillis}") val departures = HashMap<AgencyAndId, ArrayList<Departure>>() val tripsInStop = HashMap<String, Pair<Int, Int>>() parseStopTimesWithStopIndex(listOf(segment.stop.id)) { tripsInStop[it[0]] = Pair(parseTime(it[2]), it[4].toInt()) } val file = File(filesDir, "gtfs_files/calendar.txt") val settings = CsvParserSettings() settings.format.setLineSeparator("\r\n") settings.format.quote = '"' settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) parser.parseAll(file).forEach { departures[AgencyAndId(it[0])] = ArrayList() } tripsInStop.forEach { //fixme this part is long --- cache is the only option departures[trips[it.key]!!.serviceId]!!.add(Departure(trips[it.key]!!.routeId, // fixme null? calendarToMode(trips[it.key]!!.serviceId), it.value.first, trips[it.key]!!.wheelchairAccessible, explainModification(trips[it.key]!!, it.value.second), trips[it.key]!!.headsign)) } println("getStopDeparturesBySegment: ${JCalendar.getInstance().timeInMillis}") val sortedDepartures = HashMap<AgencyAndId, List<Departure>>() departures.keys.forEach { sortedDepartures[it] = departures[it]!!.sortedBy { it.time } } println("</>: ${JCalendar.getInstance().timeInMillis}") println("</>: ${JCalendar.getInstance().timeInMillis}") return sortedDepartures } private fun parseTime(time: String): Int { val cal = JCalendar.getInstance() val (h, m, s) = time.split(":") cal.set(JCalendar.HOUR_OF_DAY, h.toInt()) cal.set(JCalendar.MINUTE, m.toInt()) cal.set(JCalendar.SECOND, s.toInt()) return cal.secondsAfterMidnight() } fun calendarToMode(serviceId: AgencyAndId): List<Int> { val file = File(filesDir, "gtfs_files/calendar.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) var row: Map<String, Any>? = null val processors = Array<CellProcessor?>(header.size, { null }) while ({ row = mapReader.read(header, processors); row }() != null) { if ((row!!["service_id"] as String) == serviceId.id) { mapReader.close() val calendar = Calendar(row!!["monday"] as String == "1", row!!["tuesday"] as String == "1", row!!["wednesday"] as String == "1", row!!["thursday"] as String == "1", row!!["friday"] as String == "1", row!!["saturday"] as String == "1", row!!["sunday"] as String == "1") val days = ArrayList<Int>() if (calendar.monday) days.add(0) if (calendar.tuesday) days.add(1) if (calendar.wednesday) days.add(2) if (calendar.thursday) days.add(3) if (calendar.friday) days.add(4) if (calendar.saturday) days.add(5) if (calendar.sunday) days.add(6) return days } } mapReader.close() throw IllegalArgumentException("Service $serviceId not in store") } private fun explainModification(trip: Trip, stopSequence: Int): List<String> { //todo<p:1> "kurs obsługiwany taborem niskopodłogowym" -> ignore val route = getRouteForTrip(trip) val definitions = route.modifications val explanations = ArrayList<String>() trip.id.modification.forEach { if (it.stopRange != null) { if (stopSequence in it.stopRange) explanations.add(definitions[it.id.id]!!) } else { explanations.add(definitions[it.id.id]!!) } } return explanations } private fun getRouteForTrip(trip: Trip): Route { if (tripsCache.isEmpty()) createTripCache() val routeId = tripsCache[trip.id.rawId]!![0] val tripsFile = File(filesDir, "gtfs_files/routes.txt") val mapReader = CsvMapReader(FileReader(tripsFile), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) var routeRow: Map<String, Any>? = null val processors = Array<CellProcessor?>(header.size, { null }) while ({ routeRow = mapReader.read(header, processors); routeRow }() != null) { if ((routeRow!!["route_id"] as String) == routeId) { mapReader.close() val id = routeRow!!["route_id"] as String val agency = routeRow!!["agency_id"] as String val shortName = routeRow!!["route_short_name"] as String val longName = routeRow!!["route_long_name"] as String val desc = routeRow!!["route_desc"] as String val type = Integer.parseInt(routeRow!!["route_type"] as String) val colour = Integer.parseInt(routeRow!!["route_color"] as String, 16) val textColour = Integer.parseInt(routeRow!!["route_text_color"] as String, 16) return createRoute(id, agency, shortName, longName, desc, type, colour, textColour) } } mapReader.close() throw IllegalArgumentException("Trip ${trip.id.rawId} not in store") } private fun createRoute(id: String, agency: String, shortName: String, longName: String, desc: String, type: Int, colour: Int, textColour: Int): Route { if (desc.contains("|")) { val (to, from) = desc.split("|") val fromSplit = from.split("^") val toSplit = to.split("^") val description = "${toSplit[0]}|${fromSplit[0]}" val modifications = HashMap<String, String>() toSplit.slice(1 until toSplit.size).forEach { val (k, v) = it.split(" - ") modifications[k] = v } return Route(AgencyAndId(id), AgencyAndId(agency), shortName, longName, description, type, colour, textColour, modifications) } else { val toSplit = desc.split("^") val description = toSplit[0] val modifications = HashMap<String, String>() toSplit.slice(1 until toSplit.size).forEach { val (k, v) = it.split(" - ") modifications[k] = v } return Route(AgencyAndId(id), AgencyAndId(agency), shortName, longName, description, type, colour, textColour, modifications) } } fun getTripsForStop(stopId: AgencyAndId): HashMap<String, Trip> { val tripIds = HashSet<String>() parseStopTimesWithStopIndex(listOf(stopId.id)) { tripIds.add(it[0]) } val filteredTrips = HashMap<String, Trip>() tripIds.forEach { filteredTrips[it] = tripFromCache(it) } return filteredTrips } private fun tripFromCache(id: String): Trip { if (tripsCache.isEmpty()) createTripCache() return Trip(AgencyAndId(tripsCache[id]!![0]), AgencyAndId(tripsCache[id]!![1]), createTripId(tripsCache[id]!![2]), tripsCache[id]!![3], Integer.parseInt(tripsCache[id]!![4]), AgencyAndId(tripsCache[id]!![5]), tripsCache[id]!![6] == "1") } private fun createTripId(rawId: String): Trip.ID { if (rawId.contains('^')) { var modification = rawId.split("^")[1] val isMain = modification[modification.length - 1] == '+' if (isMain) modification = modification.subSequence(0, modification.length - 1) as String val modifications = HashSet<Trip.ID.Modification>() if (modification != "") { modification.split(",").forEach { try { val (id, start, end) = it.split(":") modifications.add(Trip.ID.Modification(AgencyAndId(id), IntRange(start.toInt(), end.toInt()))) } catch (e: Exception) { modifications.add(Trip.ID.Modification(AgencyAndId(it), null)) } } } return Trip.ID(rawId, AgencyAndId(rawId.split("^")[0]), modifications, isMain) } else return Trip.ID(rawId, AgencyAndId(rawId), HashSet(), false) } fun isEmpty(): Boolean { try { val file = File(filesDir, "gtfs_files/feed_info.txt").readText() if (file == "") return true return false } catch (e: Exception) { return true } } fun getValidSince(): String { val file = File(filesDir, "gtfs_files/feed_info.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) val processors = Array<CellProcessor?>(header.size, { null }) val row = mapReader.read(header, processors) mapReader.close() return row["feed_start_date"] as String } fun getValidTill(): String { val file = File(filesDir, "gtfs_files/feed_info.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) val processors = Array<CellProcessor?>(header.size, { null }) val row = mapReader.read(header, processors) mapReader.close() return row["feed_end_date"] as String } fun getServiceForToday(): AgencyAndId { val today = JCalendar.getInstance().get(JCalendar.DAY_OF_WEEK) return getServiceFor(today) } fun getServiceForTomorrow(): AgencyAndId { val tomorrow = JCalendar.getInstance() tomorrow.add(JCalendar.DAY_OF_MONTH, 1) val tomorrowDoW = tomorrow.get(JCalendar.DAY_OF_WEEK) return getServiceFor(tomorrowDoW) } fun getServiceFor(day: Int): AgencyAndId { val dayColumn = ((day + 5) % 7) + 1 val file = File(filesDir, "gtfs_files/calendar.txt") val settings = CsvParserSettings() settings.format.quote = '"' settings.format.setLineSeparator("\r\n") settings.isHeaderExtractionEnabled = true val parser = CsvParser(settings) parser.parseAll(file).forEach { if ((it[dayColumn] as String) == "1") { return AgencyAndId(it[0] as String) } } throw IllegalArgumentException("Day $day not in calendar") } fun getLineForNumber(number: String): AgencyAndId { val file = File(filesDir, "gtfs_files/routes.txt") val mapReader = CsvMapReader(FileReader(file), CsvPreference.STANDARD_PREFERENCE) val header = mapReader.getHeader(true) var row: Map<String, Any>? = null val processors = Array<CellProcessor?>(header.size, { null }) while ({ row = mapReader.read(header, processors); row }() != null) { if ((row!!["route_short_name"] as String) == number) { mapReader.close() return AgencyAndId(row!!["route_id"] as String) } } mapReader.close() throw IllegalArgumentException("Route $number not in store") } fun getPlatesForStop(stop: AgencyAndId): Set<Plate.ID> { val tripIds = HashSet<String>() parseStopTimesWithStopIndex(listOf(stop.id)) { tripIds.add(it[0]) } val filteredPlates = HashSet<Plate.ID>() tripIds.forEach { filteredPlates.add(Plate.ID(AgencyAndId(tripsCache[it]!![0]), stop, tripsCache[it]!![3])) } return filteredPlates } fun getTripGraphs(id: AgencyAndId): List<Map<Int, List<Int>>> { val tripsToDo = HashSet<String>() if (tripsCache.isEmpty()) createTripCache() tripsCache.forEach { if (it.value[0] == id.id) { tripsToDo.add(it.key) //todo and direction {0,1} } } parseStopTimesWithTripIndex(tripsToDo.toList()) { //todo create graph } val map = ArrayList<HashMap<Int, List<Int>>>() val map0 = HashMap<Int, List<Int>>() map0[0] = listOf(1, 2) map0[1] = listOf(3, 4, 5) map.add(map0) val map1 = HashMap<Int, List<Int>>() map1[0] = listOf(1) map1[1] = listOf(2, 3, 4) map1[2] = listOf(4, 5) map.add(map1) return map } } |