Navigation state & location observer

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

@@ -1,11 +1,15 @@
 package eu.ztsh.garmin.data
 
+import com.mapbox.navigation.core.trip.session.LocationMatcherResult
+import com.mapbox.navigation.core.trip.session.NavigationSessionState
 import com.mapbox.navigation.ui.maneuver.model.Maneuver
 
 class DataCache {
 
     private val stateCache: State = State()
     private var maneuverCache: Maneuver? = null
+    private var locationCache: LocationMatcherResult? = null
+    private var session: NavigationSessionState? = null
 
     // state
     fun hasChanged(lanes: Lanes?): Boolean {
@@ -63,4 +67,22 @@ class DataCache {
         maneuverCache = maneuver
     }
 
+    // location
+    fun hasChanged(locationMatcherResult: LocationMatcherResult): Boolean {
+        return locationCache == null || locationCache!! != locationMatcherResult
+    }
+
+    fun update(locationMatcherResult: LocationMatcherResult) {
+        locationCache = locationMatcherResult
+    }
+
+    // session
+    fun isActive(): Boolean {
+        return session != null && session is NavigationSessionState.ActiveGuidance
+    }
+
+    fun update(sessionState: NavigationSessionState) {
+        session = sessionState
+    }
+
 }

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

@@ -1,8 +1,9 @@
 package eu.ztsh.garmin.data
 
+import com.mapbox.navigation.core.trip.session.LocationMatcherResult
 import com.mapbox.navigation.ui.maneuver.model.Maneuver
 
-class ManeuverMapper {
+class MapboxMapper {
 
     companion object {
 
@@ -59,6 +60,12 @@ class ManeuverMapper {
             return state
         }
 
+        fun apply(locationMatcherResult: LocationMatcherResult): State {
+            val state = State()
+            // TODO: speed, limit, location?, bearing
+            return state
+        }
+
     }
 
 }

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

@@ -106,6 +106,7 @@ class State {
     var distance: Distance? = null
     var speed: Speed? = null
     var arrival: Arrival? = null
+    // TODO: Bearing
     // TODO: support
     var traffic: Boolean? = null
     var flag: Boolean? = null