1 files changed, 44 insertions, 0 deletions
diff --git a/android-app/app/src/main/kotlin/org/terst/nav/ui/MainViewModel.kt b/android-app/app/src/main/kotlin/org/terst/nav/ui/MainViewModel.kt
new file mode 100644
index 0000000..c5b90c3
--- /dev/null
+++ b/android-app/app/src/main/kotlin/org/terst/nav/ui/MainViewModel.kt
@@ -0,0 +1,44 @@
+package org.terst.nav.ui
+
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import org.terst.nav.sensors.WindData
+import org.terst.nav.track.TrackPoint
+import org.terst.nav.track.TrackRepository
+
+class MainViewModel {
+
+    private val trackRepository = TrackRepository()
+    private var latestWind: WindData? = null
+
+    private val _trackPoints = MutableStateFlow<List<TrackPoint>>(emptyList())
+    val trackPoints: StateFlow<List<TrackPoint>> = _trackPoints
+
+    fun startTrack() {
+        trackRepository.startTrack()
+        _trackPoints.value = emptyList()
+    }
+
+    fun stopTrack() {
+        trackRepository.stopTrack()
+    }
+
+    fun updateWind(wind: WindData) {
+        latestWind = wind
+    }
+
+    fun addGpsPoint(lat: Double, lon: Double, sogKnots: Double, cogDeg: Double) {
+        val wind = latestWind
+        val point = TrackPoint(
+            lat = lat, lon = lon,
+            sogKnots = sogKnots, cogDeg = cogDeg,
+            windSpeedKnots = wind?.windSpeed ?: 0.0,
+            windAngleDeg  = wind?.windAngle ?: 0.0,
+            isTrueWind    = wind?.isTrueWind ?: false,
+            timestampMs   = System.currentTimeMillis()
+        )
+        if (trackRepository.addPoint(point)) {
+            _trackPoints.value = trackRepository.getPoints()
+        }
+    }
+}