feat: Lane assist

app/src/main/java/eu/ztsh/garmin/data/MapboxMapper.kt

@@ -71,13 +71,25 @@ class MapboxMapper {
         }
 
         fun asLanes(maneuver: Maneuver): Lanes {
-            // TODO: implement
+            val laneIterator = Lane.iterator()
+            val outlines = mutableSetOf<Lane>()
+            val lanes = mutableSetOf<Lane>()
             maneuver.laneGuidance?.apply {
-                this.allLanes.apply {
-                    println()
+                this.allLanes.reversed().let {
+                    it.forEach{ indicator ->
+                        val lane = if (laneIterator.hasNext()) laneIterator.next() else Lane.DotsLeft
+                        if (lane == Lane.DotsLeft) {
+                            outlines.add(Lane.DotsLeft)
+                        } else {
+                            outlines.add(lane)
+                            if (indicator.isActive) {
+                                lanes.add(lane)
+                            }
+                        }
+                    }
                 }
             }
-            return Lanes(Arrows(listOf()), Arrows(listOf()))
+            return Lanes(Arrows(lanes), Arrows(outlines))
         }
 
         fun map(locationMatcherResult: LocationMatcherResult): GarminLocation {