Bimba.git

ref: 87e261ad5d515817f5932a9347da76e537881810

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.R
import ml.adamsprogs.bimba.getColour
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() {
    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!!
                } else
                    throw IllegalArgumentException("new timetable requested and no context given")
            else
                timetable!!
        }
    }

    //private lateinit var cacheManager: CacheManager
    private var _stops: List<StopSuggestion>? = null
    private lateinit var filesDir: File
    private val tripsCache = HashMap<String, Array<String>>()

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

        //getStopSuggestions(true)
    }

    fun getStopSuggestions(context: Context, 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 {
            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>>> {
        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 = '"'
        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])
                }
            }
        }

        val stopsFile = File(filesDir, "gtfs_files/trips.txt")
        parser.parseAll(stopsFile).forEach {
            tripsCache[it[2]] = it
            routes[it[2]] = Pair(it[0], it[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})
        */
    }

    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>()

        val trips = getTripsForStop(stopId)
        trips.values.map {
            Plate(Plate.ID(it.routeId, stopId, it.headsign), null)
        }.forEach {
                    toGet.add(it)
                }

        getStopDeparturesByPlates(toGet, trips).forEach { plates.add(it) }
        return Plate.join(plates)
    }

    fun getStopDepartures(plates: Set<Plate>): Map<AgencyAndId, ArrayList<Departure>> {
        val trips = HashMap<String, Trip>()
        //todo get trips

        return Plate.join(getStopDeparturesByPlates(plates, trips))
    }

    private fun getStopDeparturesByPlates(plates: Set<Plate>, trips: Map<String, Trip>): Set<Plate> {
        if (plates.isEmpty())
            return emptySet()

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

    private fun getStopDeparturesByPlate(plate: Plate, trips: Map<String, Trip>): Plate { //fixme takes too long
        println("getStopDeparturesByPlate: ${JCalendar.getInstance().timeInMillis}")
        val resultPlate = Plate(Plate.ID(plate.id), HashMap())
        val stopTimes = HashMap<String, Map<String, Any>>()
        val stopTimesFile = File(filesDir, "gtfs_files/stop_times_${plate.id.stop.id}.txt")
        val mapReader = CsvMapReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE)
        val header = mapReader.getHeader(true)

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

        trips.forEach {
            if (it.value.routeId == plate.id.line &&
                    it.value.headsign == plate.id.headsign) {
                val cal = JCalendar.getInstance()
                val (h, m, s) = (stopTimes[it.key]!!["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 = it.value.serviceId
                val mode = calendarToMode(serviceId)
                val lowFloor = it.value.wheelchairAccessible
                val mod = explainModification(it.value,
                        Integer.parseInt(stopTimes[it.key]!!["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)
            }
        }
        println("</>: ${JCalendar.getInstance().timeInMillis}")
        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> { //todo "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 {
        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 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): HashMap<String, Trip> {
        val tripIds = HashSet<String>()
        val stopTimesFile = File(filesDir, "gtfs_files/stop_times_${stopId.id}.txt")
        val mapReader = CsvMapReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE)
        val header = mapReader.getHeader(true)

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

        val filteredTrips = HashMap<String, Trip>()

        tripIds.forEach {
            filteredTrips[it] = Trip(AgencyAndId(tripsCache[it]!![0]),
                    AgencyAndId(tripsCache[it]!![1]), createTripId(tripsCache[it]!![2]),
                    tripsCache[it]!![3], Integer.parseInt(tripsCache[it]!![4]),
                    AgencyAndId(tripsCache[it]!![5]), tripsCache[it]!![6] == "1")
        }
        return filteredTrips
    }

    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)
    }

    private fun getServiceFor(day: Int): AgencyAndId {
        val dow = arrayOf("sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday")

        return getServiceFor(dow[day - 1])
    }

    fun getServiceFor(day: String): AgencyAndId {
        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!![day] 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 tripIds = HashSet<String>()
        val stopTimesFile = File(filesDir, "gtfs_files/stop_times_${stop.id}.txt")
        val mapReader = CsvMapReader(FileReader(stopTimesFile), CsvPreference.STANDARD_PREFERENCE)
        val header = mapReader.getHeader(true)

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

        val filteredPlates = HashSet<Plate.ID>()
        tripIds.forEach {
            filteredPlates.add(Plate.ID(AgencyAndId(tripsCache[it]!![0]), stop, tripsCache[it]!![3]))
        }

        return filteredPlates
    }
}