ref: 360f92288cb9af0341b5b6efeb137db7b0d4d50d
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.content.res.Resources import android.graphics.* import android.util.DisplayMetrics import androidx.appcompat.content.res.AppCompatResources import androidx.core.graphics.drawable.toBitmap import ml.adamsprogs.bimba.R import xyz.apiote.fruchtfleisch.Reader import java.io.InputStream import kotlin.math.abs import kotlin.math.pow import kotlin.math.roundToInt 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 Position: String, val Capabilities: UByte, val Speed: Float, val CongestionLevel: UByte, val OccupancyStatus: UByte ) { companion object { fun unmarshal(stream: InputStream): Vehicle { val reader = Reader(stream) return Vehicle( reader.readString(), reader.readU8(), reader.readFloat32(), reader.readU8(), reader.readU8() ) } } } 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(type.toUInt())) } } fun icon(context: Context): Bitmap { return super.icon(context, type, colour) } fun textColour(): Int { return super.textColour(colour) } } data class Departure( val line: LineStub, val headsign: String, val time: Time, val status: UByte, val isRealtime: Boolean, val stopOrder: String, val vehicle: Vehicle, val boarding: UByte ) { companion object { fun unmarshal(stream: InputStream): Departure { val reader = Reader(stream) 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(line, headsign, time, status, isRealtime, stopOrder, vehicle, boarding) } } } interface Item data class Stop( val code: String, val zone: String, val position: String, val changeOptions: List<ChangeOption>, val name: String ) : Item { override fun toString(): String { var result = "$name ($code) [$zone] $position\n" for (chOpt in changeOptions) result += "${chOpt.line} → ${chOpt.headsign}\n" return result } companion object { fun unmarshal(stream: InputStream): Stop { val reader = Reader(stream) val code = reader.readString() val zone = reader.readString() val position = reader.readString() 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) } } private fun dpToPixel(dp: Float): Float { val metrics: DisplayMetrics = Resources.getSystem().displayMetrics return dp * (metrics.densityDpi / 160f) } private fun dpToPixelI(dp: Float): Int = dpToPixel(dp).roundToInt() fun icon(context: Context, type: LineType, colour: Colour): Bitmap { val drawingBitmap = Bitmap.createBitmap( dpToPixelI(24f), dpToPixelI(24f), Bitmap.Config.ARGB_8888 ) val canvas = Canvas(drawingBitmap) canvas.drawPath( getSquirclePath( dpToPixel(.8f), dpToPixel(.8f), dpToPixelI(11.2f) ), Paint().apply { color = textColour(colour) }) canvas.drawPath( getSquirclePath( dpToPixel(1.6f), dpToPixel(1.6f), dpToPixelI(10.4f) ), Paint().apply { color = colour.toInt() }) val iconID = when (type) { LineType.BUS -> R.drawable.ic_bus_black_24dp LineType.TRAM -> R.drawable.ic_tram_black_24dp LineType.UNKNOWN -> R.drawable.ic_commute_black_24dp } val icon = AppCompatResources.getDrawable(context, iconID)?.mutate() // todo(code) move context out ?.apply { setTint(textColour(colour)) }?.toBitmap(dpToPixelI(19.2f), dpToPixelI(19.2f), Bitmap.Config.ARGB_8888) canvas.drawBitmap( icon!!, dpToPixel(2.4f), dpToPixel(2.4f), 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 ($type) [${textColour()}/$colour]\n→ [${headsignsThere.joinToString()}]\n→ [${headsignsBack.joinToString()}]\n" } fun icon(context: Context): Bitmap { return super.icon(context, type, colour) } fun textColour(): Int { return super.textColour(colour) } 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(type.toUInt()), headsignsThere = headsignsThere, headsignsBack = headsignsBack, graphThere = graphThere, graphBack = graphBack ) } } } enum class LineType { TRAM, BUS, UNKNOWN } fun LineType(type: UInt): LineType { return when (type) { 0U -> LineType.valueOf("TRAM") 3U -> LineType.valueOf("BUS") else -> LineType.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() ) } } } |