Bimba.git

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380

package ml.adamsprogs.bimba.api

import android.content.Context
import android.graphics.*
import android.util.Log
import androidx.annotation.ColorInt
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

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)
		}
	}

	fun icon(context: Context, type: LineType, colour: Colour): Bitmap {
		// fixme dimensions
		val drawingBitmap = Bitmap.createBitmap(
			2400,
			2400,
			Bitmap.Config.ARGB_8888
		)
		val canvas = Canvas(drawingBitmap)

		canvas.drawPath(getSquirclePath(80, 80, 1120), Paint().apply { color = textColour(colour) })
		canvas.drawPath(getSquirclePath(160, 160, 1040), 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_square_white_24dp // todo generic vehicle
		}
		val icon = AppCompatResources.getDrawable(context, iconID)?.mutate()
			?.apply {
				setTint(textColour(colour))
			}?.toBitmap(1920, 1920, Bitmap.Config.ARGB_8888)
		canvas.drawBitmap(icon!!, 240f, 240f, Paint())
		return drawingBitmap
	}

	private fun getSquirclePath(left: Int, top: Int, radius: Int): Path {  // fixme draws beyond canvas
		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).toFloat(), (top + radius).toFloat())
		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()
			)
		}
	}
}