Bimba.git

ref: 39faa85c5d0e2ec6212f990934bc974a8783effd

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.univocity.parsers.csv.CsvParser
import com.univocity.parsers.csv.CsvParserSettings
import ml.adamsprogs.bimba.datasources.CacheManager
import ml.adamsprogs.bimba.gtfs.AgencyAndId
import ml.adamsprogs.bimba.gtfs.Route
import ml.adamsprogs.bimba.gtfs.Trip
import ml.adamsprogs.bimba.gtfs.Calendar
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() {
    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.filesDir
                    timetable!!.cacheManager = CacheManager.getCacheManager(context)
                    timetable as Timetable
                } else
                    throw IllegalArgumentException("new timetable requested and no context given")
            else
                timetable as Timetable
        }
    }

    private lateinit var cacheManager: CacheManager
    private var _stops: List<StopSuggestion>? = null
    private lateinit var filesDir: File

    fun refresh() {
        cacheManager.recreate(getStopDeparturesByPlates(cacheManager.keys().toSet()))

        getStops(true)
    }

    fun getStops(force: Boolean = false): List<StopSuggestion> {
        if (_stops != null && !force)
            return _stops!!


        val settings = CsvParserSettings()
        settings.format.setLineSeparator("\r\n")
        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 { StopSuggestion(it.key, it.value, zones[it.key]!!) }.sorted()
        return _stops!!
    }

    fun getHeadlinesForStop(stops: Set<AgencyAndId>): Map<AgencyAndId, Pair<String, Set<String>>> {
        println(JCalendar.getInstance().timeInMillis)
        val trips = HashMap<String, HashSet<String>>()
        val routes = HashMap<String, Pair<String, String>>()
        val headsigns = HashMap<AgencyAndId, Pair<String, HashSet<String>>>()
        val settings = CsvParserSettings()
        settings.format.setLineSeparator("\r\n")
        settings.format.quote='"'
        println(JCalendar.getInstance().timeInMillis)
        val parser = CsvParser(settings)
        stops.forEach {
            trips[it.id] = HashSet()
            val stop = it.id
            val stopsFile = File(filesDir, "gtfs_files/stop_times_${it.id}.txt")
            parser.parseAll(stopsFile).forEach {
                if (it[6] in arrayOf("0", "3")) {
                    trips[stop]!!.add(it[0])
                }
            }
        }
        println(JCalendar.getInstance().timeInMillis)

        //val allTrips = trips.flatMap { it.value }
        println(JCalendar.getInstance().timeInMillis)

        val stopsFile = File(filesDir, "gtfs_files/trips.txt")
        parser.parseAll(stopsFile).forEach {
            //if (it[2] in allTrips)
            routes[it[2]] = Pair(it[0], it[3])
        }
        println(JCalendar.getInstance().timeInMillis)


        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)
        }
        println(JCalendar.getInstance().timeInMillis)

        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})
        */
    }

    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>> {
        val plates = HashSet<Plate>()
        val toGet = HashSet<Plate>()

        getTripsForStop(stopId)
                .map {
                    Plate(Plate.ID(it.routeId, stopId, it.headsign), null)
                }
                .forEach {
                    if (cacheManager.has(it))
                        plates.add(cacheManager.get(it)!!)
                    else {
                        toGet.add(it)
                    }
                }

        getStopDeparturesByPlates(toGet).forEach { cacheManager.push(it); plates.add(it) }

        return Plate.join(plates)
    }

    fun getStopDepartures(plates: Set<Plate>): Map<AgencyAndId, ArrayList<Departure>> {
        val result = HashSet<Plate>()
        val toGet = HashSet<Plate>()

        for (plate in plates) {
            if (cacheManager.has(plate))
                result.add(cacheManager.get(plate)!!)
            else
                toGet.add(plate)
        }

        getStopDeparturesByPlates(toGet).forEach { cacheManager.push(it); result.add(it) }

        return Plate.join(result)
    }

    private fun getStopDeparturesByPlates(plates: Set<Plate>): Set<Plate> {
        if (plates.isEmpty())
            return emptySet()

        return plates.map { getStopDeparturesByPlate(it) }.toSet()
    }

    private fun getStopDeparturesByPlate(plate: Plate): Plate {
        val resultPlate = Plate(Plate.ID(plate.id), HashMap())
        val trips = HashMap<String, Map<String, Any>>()
        val stopTimesFile = File(filesDir, "gtfs_files/stop_times.txt") //todo stop_times_$stopId
        var mapReader = CsvMapReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE)
        var header = mapReader.getHeader(true)

        var stopTimesRow: Map<String, Any>? = null
        var processors = Array<CellProcessor?>(header.size, { null })
        while ({ stopTimesRow = mapReader.read(header, processors); stopTimesRow }() != null) {
            if ((stopTimesRow!!["stop_id"] as String) == plate.id.stop.id) {
                val tripId = stopTimesRow!!["trip_id"] as String
                trips[tripId] = stopTimesRow!!
            }
        }
        mapReader.close()

        val tripsFile = File(filesDir, "gtfs_files/trips.txt")
        mapReader = CsvMapReader(FileReader(tripsFile), CsvPreference.STANDARD_PREFERENCE)
        header = mapReader.getHeader(true)

        var tripsRow: Map<String, Any>? = null
        processors = Array(header.size, { null })
        while ({ tripsRow = mapReader.read(header, processors); tripsRow }() != null) {
            val tripId = tripsRow!!["trip_id"] as String
            if (tripId in trips && tripsRow!!["route_id"] as String == plate.id.line.id
                    && tripsRow!!["trip_headsign"] as String == plate.id.headsign) { //check if toLower is needed
                val cal = JCalendar.getInstance()
                val (h, m, s) = (trips[tripId]!!["departure_time"] as String).split(":")
                cal.set(JCalendar.HOUR_OF_DAY, h.toInt())
                cal.set(JCalendar.MINUTE, m.toInt())
                cal.set(JCalendar.SECOND, s.toInt())
                val time = cal.secondsAfterMidnight()
                val serviceId = AgencyAndId(tripsRow!!["service_id"] as String)
                val mode = calendarToMode(serviceId)
                val lowFloor = trips[tripId]!!["wheelchair_accessible"] as String == "1"
                val mod = explainModification(Trip(AgencyAndId(tripsRow!!["route_id"] as String),
                        serviceId, createTripId(tripsRow!!["trip_id"] as String),
                        tripsRow!!["trip_headsign"] as String, Integer.parseInt(tripsRow!!["direction_id"] as String),
                        AgencyAndId(tripsRow!!["shape_id"] as String)), Integer.parseInt(trips[tripId]!!["stop_sequence"] as String))

                val dep = Departure(plate.id.line, mode, time, lowFloor, mod, plate.id.headsign)
                if (resultPlate.departures!![serviceId] == null)
                    resultPlate.departures[serviceId] = HashSet()
                resultPlate.departures[serviceId]!!.add(dep)
            }
        }
        mapReader.close()
        return resultPlate
    }

    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> {
        val definitions = getRouteForTrip(trip).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 {
        val routesFile = File(filesDir, "gtfs_files/routes.txt")
        var mapReader = CsvMapReader(FileReader(routesFile), CsvPreference.STANDARD_PREFERENCE)
        var header = mapReader.getHeader(true)

        var routeId = ""
        var row: Map<String, Any>? = null
        var processors = Array<CellProcessor?>(header.size, { null })
        while ({ row = mapReader.read(header, processors); row }() != null) {
            if ((row!!["trip_id"] as String) == trip.rawId) {
                mapReader.close()
                routeId = row!!["route_id"] as String
                break
            }
        }
        if (routeId == "") {
            mapReader.close()
            throw IllegalArgumentException("Trip ${trip.rawId} not in store")
        }

        val tripsFile = File(filesDir, "gtfs_files/trips.txt")
        mapReader = CsvMapReader(FileReader(tripsFile), CsvPreference.STANDARD_PREFERENCE)
        header = mapReader.getHeader(true)

        var routeRow: Map<String, Any>? = null
        processors = Array(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)
                val (to, from) = desc.split("|")
                val toSplit = to.split("^")
                val fromSplit = from.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)
            }
        }
        mapReader.close()
        throw IllegalArgumentException("Trip ${trip.rawId} not in store")
    }

//    fun getLinesForStop(stopId: AgencyAndId): Set<AgencyAndId> {
//        val lines = HashSet<AgencyAndId>()
//        store.allStopTimes.filter { it.stop.id == stopId }.forEach { lines.add(it.trip.route.id) }
//        return lines
//    }

    fun getTripsForStop(stopId: AgencyAndId): Set<Trip> {
        val tripIds = HashSet<String>()
        val stopTimesFile = File(filesDir, "gtfs_files/stop_times.txt")
        var mapReader = CsvMapReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE)
        var header = mapReader.getHeader(true)

        var stopTimesRow: Map<String, Any>? = null
        var processors = Array<CellProcessor?>(header.size, { null })
        while ({ stopTimesRow = mapReader.read(header, processors); stopTimesRow }() != null) {
            if ((stopTimesRow!!["stop_id"] as String) == stopId.id) {
                val tripId = stopTimesRow!!["trip_id"] as String
                tripIds.add(tripId)
            }
        }
        mapReader.close()


        val trips = HashSet<Trip>()
        val tripsFile = File(filesDir, "gtfs_files/trips.txt")
        mapReader = CsvMapReader(FileReader(tripsFile), CsvPreference.STANDARD_PREFERENCE)
        header = mapReader.getHeader(true)

        var tripsRow: Map<String, Any>? = null
        processors = Array(header.size, { null })
        while ({ tripsRow = mapReader.read(header, processors); tripsRow }() != null) {
            val tripId = tripsRow!!["trip_id"] as String
            if (tripId in tripIds) {
                trips.add(Trip(AgencyAndId(tripsRow!!["route_id"] as String),
                        AgencyAndId(tripsRow!!["service_id"] as String),
                        createTripId(tripId),
                        tripsRow!!["trip_headsign"] as String,
                        Integer.parseInt(tripsRow!!["direction_id"] as String),
                        AgencyAndId(tripsRow!!["shape_id"] as String)))
            }
        }
        mapReader.close()
        return trips
    }

    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>()
            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(AgencyAndId(rawId.split("^")[0]), modifications, isMain)
        } else
            return Trip.ID(AgencyAndId(rawId), HashSet(), false)
    }

    fun isEmpty(): Boolean {
        try {
            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 })
            if (mapReader.read(header, processors) == null) {
                mapReader.close()
                return true
            }
            mapReader.close()
            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)
    }

    private fun getServiceFor(day: Int): AgencyAndId {
        val dow = arrayOf("sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday")
        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!![dow[day - 1]] as String) == "1") {
                mapReader.close()
                return AgencyAndId(row!!["service_id"] as String)
            }
        }
        mapReader.close()
        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 plates = HashSet<Plate.ID>()
        val tripIds = HashSet<String>()
        val stopTimesFile = File(filesDir, "gtfs_files/stop_times.txt")
        var mapReader = CsvMapReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE)
        var header = mapReader.getHeader(true)

        var stopTimesRow: Map<String, Any>? = null
        var processors = Array<CellProcessor?>(header.size, { null })
        while ({ stopTimesRow = mapReader.read(header, processors); stopTimesRow }() != null) {
            if ((stopTimesRow!!["stop_id"] as String) == stop.id) {
                val tripId = stopTimesRow!!["trip_id"] as String
                tripIds.add(tripId)
            }
        }
        mapReader.close()


        val tripsFile = File(filesDir, "gtfs_files/trips.txt")
        mapReader = CsvMapReader(FileReader(tripsFile), CsvPreference.STANDARD_PREFERENCE)
        header = mapReader.getHeader(true)

        var tripsRow: Map<String, Any>? = null
        processors = Array(header.size, { null })
        while ({ tripsRow = mapReader.read(header, processors); tripsRow }() != null) {
            if (tripsRow!!["trip_id"] as String in tripIds) {
                plates.add(Plate.ID(AgencyAndId(tripsRow!!["route_id"] as String), stop, tripsRow!!["trip_headsign"] as String))
            }
        }
        mapReader.close()

        return plates
    }
}