ref: 28e71396b2ed6cee7c88b62de6788b39344689ff
app/src/main/java/ml/adamsprogs/bimba/api/Structs.kt
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package ml.adamsprogs.bimba.api import android.content.Context import android.graphics.* import android.graphics.drawable.BitmapDrawable import android.graphics.drawable.Drawable import android.graphics.drawable.LayerDrawable import android.text.format.DateUtils import androidx.appcompat.content.res.AppCompatResources import androidx.core.graphics.ColorUtils.HSLToColor import androidx.core.graphics.drawable.toBitmap import ml.adamsprogs.bimba.R import ml.adamsprogs.bimba.dpToPixel import ml.adamsprogs.bimba.dpToPixelI import xyz.apiote.fruchtfleisch.Reader import java.io.InputStream import java.util.* import java.util.zip.Adler32 import kotlin.math.abs import kotlin.math.pow data class Position( val latitude: Double, val longitude: Double ) { fun isZero(): Boolean { return latitude == 0.0 && longitude == 0.0 } override fun toString(): String = "$latitude,$longitude" companion object { fun unmarshal(stream: InputStream): Position { val reader = Reader(stream) return Position( reader.readFloat64(), reader.readFloat64() ) } } } data class DateTime( val year: Int, val month: Int, val day: Int, val hour: Int, val minute: Int, val second: Int, val offsetSign: Int, val offsetH: Int, val offsetM: Int ) { companion object { fun of(s: String): DateTime { val (oH, oM) = if (s[19] == 'Z') { arrayOf(0, 0) } else { arrayOf(Integer.parseInt(s.substring(20, 22)), Integer.parseInt(s.substring(23, 25))) } val oS = when (s[19]) { 'Z' -> 0 '+' -> 1 '-' -> -1 else -> TODO("Throw invalid") } return DateTime( Integer.parseInt(s.substring(0, 4)), Integer.parseInt(s.substring(5, 7)), Integer.parseInt(s.substring(8, 10)), Integer.parseInt(s.substring(11, 13)), Integer.parseInt(s.substring(14, 16)), Integer.parseInt(s.substring(17, 19)), oS, oH, oM ) } } } data class FeedInfo( val name: String, val id: String, val attribution: String, val description: String, val lastUpdate: DateTime ) { companion object { fun unmarshal(stream: InputStream): FeedInfo { val reader = Reader(stream) return FeedInfo( reader.readString(), reader.readString(), reader.readString(), reader.readString(), DateTime.of(reader.readString()) ) } } } data class Alert( val header: String, val Description: String, val Url: String, val Cause: UInt, val Effect: UInt ) { companion object { fun unmarshal(stream: InputStream): Alert { val reader = Reader(stream) val header = reader.readString() val description = reader.readString() val url = reader.readString() val cause = reader.readU32() val effect = reader.readU32() return Alert(header, description, url, cause, effect) } } } data class Time( val Hour: UInt, val Minute: UInt, val Second: UInt, val DayOffset: Byte, val Zone: String ) { companion object { fun unmarshal(stream: InputStream): Time { val reader = Reader(stream) return Time( reader.readUInt().toUInt(), reader.readUInt().toUInt(), reader.readUInt().toUInt(), reader.readI8(), reader.readString() ) } } } data class Colour(val R: UByte, val G: UByte, val B: UByte) { companion object { fun unmarshal(stream: InputStream): Colour { val reader = Reader(stream) return Colour( reader.readU8(), reader.readU8(), reader.readU8() ) } } fun toInt(): Int { var rgb = 0xff rgb = (rgb shl 8) + R.toInt() rgb = (rgb shl 8) + G.toInt() rgb = (rgb shl 8) + B.toInt() return rgb } } data class Vehicle( val ID: String, val Position: Position, val Capabilities: UShort, val Speed: Float, val Line: LineStub, val Headsign: String, val CongestionLevel: UByte, val OccupancyStatus: UByte ) : Locatable { enum class Capability(val bit: UShort) { RAMP(0b0001u), LOW_FLOOR(0b0010u), LOW_ENTRY(0b0001_0000_0000u), AC(0b0100u), BIKE(0b1000u), VOICE(0b0001_0000u), TICKET_MACHINE(0b0010_0000u), TICKET_DRIVER(0b0100_0000u), USB_CHARGING(0b1000_0000u) } override fun id(): String = ID override fun icon(context: Context, scale: Float): Drawable { return BitmapDrawable(context.resources, Line.icon(context, scale)) } override fun location(): Position = Position fun congestion(context: Context): String { return when (CongestionLevel.toUInt()) { // todo enum 0u -> context.getString(R.string.congestion_unknown) 1u -> context.getString(R.string.congestion_smooth) 2u -> context.getString(R.string.congestion_stop_and_go) 3u -> context.getString(R.string.congestion_congestion) 4u -> context.getString(R.string.congestion_jams) else -> TODO("throw invalid congestion") } } fun occupancy(context: Context): String { return when (OccupancyStatus.toUInt()) { // todo enum 0u -> context.getString(R.string.occupancy_unknown) 1u -> context.getString(R.string.occupancy_empty) 2u -> context.getString(R.string.occupancy_many_seats) 3u -> context.getString(R.string.occupancy_few_seats) 4u -> context.getString(R.string.occupancy_standing_only) 5u -> context.getString(R.string.occupancy_crowded) 6u -> context.getString(R.string.occupancy_full) 7u -> context.getString(R.string.occupancy_wont_let) else -> TODO("throw invalid occupancy") } } companion object { fun unmarshal(stream: InputStream): Vehicle { val reader = Reader(stream) return Vehicle( reader.readString(), Position.unmarshal(stream), reader.readU16(), reader.readFloat32(), LineStub.unmarshal(stream), reader.readString(), reader.readU8(), reader.readU8() ) } } fun getCapability(field: Capability): Boolean { return Capabilities.and(field.bit) != (0).toUShort() } } data class LineStub( val colour: Colour, val type: LineType, val name: String ) : LineAbstract { companion object { fun unmarshal(stream: InputStream): LineStub { val reader = Reader(stream) val colour = Colour.unmarshal(stream) val type = reader.readUInt() val name = reader.readString() return LineStub(name = name, colour = colour, type = LineType.of(type.toUInt())) } } fun icon(context: Context, scale: Float = 1f): Bitmap { return super.icon(context, type, colour, scale) } } data class Departure( val ID: String, val line: LineStub, val headsign: String, val time: Time, val status: UByte, val isRealtime: Boolean, val stopOrder: String, val vehicle: Vehicle, val boarding: UByte ) { fun statusText(context: Context?): String { val now = Calendar.getInstance() val departureTime = Calendar.getInstance().apply { set(Calendar.HOUR_OF_DAY, this@Departure.time.Hour.toInt()) set(Calendar.MINUTE, this@Departure.time.Minute.toInt()) set(Calendar.SECOND, this@Departure.time.Second.toInt()) set( Calendar.ZONE_OFFSET, TimeZone.getTimeZone(this@Departure.time.Zone).getOffset(now.timeInMillis) ) roll(Calendar.DAY_OF_MONTH, this@Departure.time.DayOffset.toInt()) } return when (status.toInt()) { 0 -> DateUtils.getRelativeTimeSpanString( departureTime.timeInMillis, now.timeInMillis, DateUtils.MINUTE_IN_MILLIS, DateUtils.FORMAT_ABBREV_RELATIVE ) .toString() 1 -> context?.getString(R.string.departure_momentarily) ?: "momentarily" 2 -> context?.getString(R.string.departure_now) ?: "now" 3 -> context?.getString(R.string.departure_departed) ?: "departed" else -> TODO("throw invalid") } } fun timeString(context: Context): String { return if (isRealtime) { context.getString( R.string.at_time_realtime, time.Hour.toInt(), time.Minute.toInt(), time.Second.toInt() ) } else { context.getString(R.string.at_time, time.Hour.toInt(), time.Minute.toInt()) } } fun boardingText(context: Context): String { // todo [3.x] probably should take into account (on|off)-boarding only, on demand return when { (boarding.and(0b1010u) != (0b0).toUByte()) -> context.getString(R.string.on_demand) (boarding.and(0b0101u) == (0b0101).toUByte()) -> context.getString(R.string.no_boarding) (boarding.and(0b0100u) == (0b0100).toUByte()) -> context.getString(R.string.on_boarding) (boarding.and(0b0001u) == (0b0001).toUByte()) -> context.getString(R.string.off_boarding) else -> context.getString(R.string.boarding) } } companion object { fun unmarshal(stream: InputStream): Departure { val reader = Reader(stream) val id = reader.readString() val line = LineStub.unmarshal(stream) val headsign = reader.readString() val time = Time.unmarshal(stream) val status = reader.readU8() val isRealtime = reader.readBoolean() val stopOrder = reader.readString() val vehicle = Vehicle.unmarshal(stream) val boarding = reader.readU8() return Departure(id, line, headsign, time, status, isRealtime, stopOrder, vehicle, boarding) } } } interface Item interface Locatable { fun icon(context: Context, scale: Float = 1f): Drawable fun location(): Position fun id(): String } data class Stop( val code: String, val zone: String, val position: Position, val changeOptions: List<ChangeOption>, val name: String ) : Item, Locatable { override fun icon(context: Context, scale: Float): Drawable { val saturationArray = arrayOf(0.5f, 0.65f, 0.8f) val sal = saturationArray.size val lightnessArray = arrayOf(.5f) val lal = lightnessArray.size val md = Adler32().let { it.update(name.toByteArray()) it.value } val h = md % 359f val s = saturationArray[(md / 360 % sal).toInt()] val l = lightnessArray[(md / 360 / sal % lal).toInt()] val fg = AppCompatResources.getDrawable(context, R.drawable.stop) val bg = AppCompatResources.getDrawable(context, R.drawable.stop_bg)!!.mutate() .apply { setTint(HSLToColor(arrayOf(h, s, l).toFloatArray())) } return BitmapDrawable( context.resources, LayerDrawable(arrayOf(bg, fg)).mutate() .toBitmap(dpToPixelI(24f / scale), dpToPixelI(24f / scale), Bitmap.Config.ARGB_8888) ) } override fun id(): String = code override fun location(): Position = position override fun toString(): String { var result = "$name ($code) [$zone] $position\n" for (chOpt in changeOptions) result += "${chOpt.line} → ${chOpt.headsign}\n" return result } fun changeOptions(context: Context): Pair<String,String> { return Pair(changeOptions.groupBy { it.line } .map { Pair(it.key, it.value.joinToString { co -> co.headsign }) } .joinToString { context.getString( R.string.vehicle_headsign, it.first, it.second ) }, changeOptions.groupBy { it.line } .map { Pair(it.key, it.value.joinToString { co -> co.headsign }) } .joinToString { context.getString( R.string.vehicle_headsign_content_description, it.first, it.second ) }) } companion object { fun unmarshal(stream: InputStream): Stop { val reader = Reader(stream) val code = reader.readString() val zone = reader.readString() val position = Position.unmarshal(stream) val chOptionsNum = reader.readUInt() val changeOptions = mutableListOf<ChangeOption>() for (i in 0UL until chOptionsNum) { changeOptions.add(ChangeOption.unmarshal(stream)) } val name = reader.readString() return Stop( name = name, code = code, zone = zone, position = position, changeOptions = changeOptions ) } } } interface LineAbstract { fun textColour(c: Colour): Int { val black = relativeLuminance(Colour(0u, 0u, 0u)) + .05 val white = relativeLuminance(Colour(255u, 255u, 255u)) + .05 val colour = relativeLuminance(c) + .05 return if ((white / colour) > (colour / black)) { Color.WHITE } else { Color.BLACK } } private fun relativeLuminance(colour: Colour): Double { val r = fromSRGB(colour.R.toDouble() / 0xff) val g = fromSRGB(colour.G.toDouble() / 0xff) val b = fromSRGB(colour.B.toDouble() / 0xff) return 0.2126 * r + 0.7152 * g + 0.0722 * b } private fun fromSRGB(part: Double): Double { return if (part <= 0.03928) { part / 12.92 } else { ((part + 0.055) / 1.055).pow(2.4) } } fun icon(context: Context, type: LineType, colour: Colour, scale: Float): Bitmap { val drawingBitmap = Bitmap.createBitmap( dpToPixelI(24f / scale), dpToPixelI(24f / scale), Bitmap.Config.ARGB_8888 ) val canvas = Canvas(drawingBitmap) canvas.drawPath( getSquirclePath( dpToPixel(.8f / scale), dpToPixel(.8f / scale), dpToPixelI(11.2f / scale) ), Paint().apply { color = textColour(colour) }) canvas.drawPath( getSquirclePath( dpToPixel(1.6f / scale), dpToPixel(1.6f / scale), dpToPixelI(10.4f / scale) ), Paint().apply { color = colour.toInt() }) val iconID = when (type) { LineType.BUS -> R.drawable.bus_black LineType.TRAM -> R.drawable.tram_black LineType.UNKNOWN -> R.drawable.vehicle_black } val icon = AppCompatResources.getDrawable(context, iconID)?.mutate() ?.apply { setTint(textColour(colour)) }?.toBitmap(dpToPixelI(19.2f / scale), dpToPixelI(19.2f / scale), Bitmap.Config.ARGB_8888) canvas.drawBitmap( icon!!, dpToPixel(2.4f / scale), dpToPixel(2.4f / scale), Paint() ) return drawingBitmap } private fun getSquirclePath( left: Float, top: Float, radius: Int ): Path { val radiusToPow = (radius * radius * radius).toDouble() val path = Path() path.moveTo(-radius.toFloat(), 0f) for (x in -radius..radius) path.lineTo( x.toFloat(), Math.cbrt(radiusToPow - abs(x * x * x)).toFloat() ) for (x in radius downTo -radius) path.lineTo( x.toFloat(), -Math.cbrt(radiusToPow - abs(x * x * x)).toFloat() ) path.close() val matrix = Matrix() matrix.postTranslate((left + radius), (top + radius)) path.transform(matrix) return path } } data class Line( val colour: Colour, val type: LineType, val headsignsThere: List<String>, val headsignsBack: List<String>, val graphThere: LineGraph, val graphBack: LineGraph, val name: String ) : Item, LineAbstract { override fun toString(): String { return "$name ($type) [$colour]\n→ [${headsignsThere.joinToString()}]\n→ [${headsignsBack.joinToString()}]\n" } fun icon(context: Context, scale: Float = 1f): Bitmap { return super.icon(context, type, colour, scale) } companion object { fun unmarshal(stream: InputStream): Line { val reader = Reader(stream) val colour = Colour.unmarshal(stream) val type = reader.readUInt() val headsignsThereNum = reader.readUInt() val headsignsThere = mutableListOf<String>() for (i in 0UL until headsignsThereNum) { headsignsThere.add(reader.readString()) } val headsignsBackNum = reader.readUInt() val headsignsBack = mutableListOf<String>() for (i in 0UL until headsignsBackNum) { headsignsBack.add(reader.readString()) } val graphThere = LineGraph.unmarshal(stream) val graphBack = LineGraph.unmarshal(stream) val name = reader.readString() return Line( name = name, colour = colour, type = LineType.of(type.toUInt()), headsignsThere = headsignsThere, headsignsBack = headsignsBack, graphThere = graphThere, graphBack = graphBack ) } } } enum class LineType { TRAM, BUS, UNKNOWN; companion object { fun of(type: UInt): LineType { return when (type) { 0U -> valueOf("TRAM") 3U -> valueOf("BUS") else -> valueOf("UNKNOWN") } } } } data class ChangeOption(val line: String, val headsign: String) { companion object { fun unmarshal(stream: InputStream): ChangeOption { val reader = Reader(stream) return ChangeOption(line = reader.readString(), headsign = reader.readString()) } } } data class LineGraph( val stops: List<StopStub>, val nextNodes: Map<Long, List<Long>>, val prevNodes: Map<Long, List<Long>> ) { companion object { fun unmarshal(stream: InputStream): LineGraph { val reader = Reader(stream) val stopsNum = reader.readUInt() val stops = mutableListOf<StopStub>() for (i in 0UL until stopsNum) { stops.add(StopStub.unmarshal(stream)) } val nextNodesNum = reader.readUInt() val nextNodes = mutableMapOf<Long, List<Long>>() for (i in 0UL until nextNodesNum) { val from = reader.readInt() val toNum = reader.readUInt() val to = mutableListOf<Long>() for (j in 0UL until toNum) { to.add(reader.readInt()) } nextNodes[from] = to } val prevNodesNum = reader.readUInt() val prevNodes = mutableMapOf<Long, List<Long>>() for (i in 0UL until prevNodesNum) { val from = reader.readInt() val toNum = reader.readUInt() val to = mutableListOf<Long>() for (j in 0UL until toNum) { to.add(reader.readInt()) } prevNodes[from] = to } return LineGraph(stops = stops, nextNodes = nextNodes, prevNodes = prevNodes) } } } data class StopStub(val name: String, val code: String, val zone: String, val onDemand: Boolean) { companion object { fun unmarshal(stream: InputStream): StopStub { val reader = Reader(stream) return StopStub( code = reader.readString(), name = reader.readString(), zone = reader.readString(), onDemand = reader.readBoolean() ) } } } |