From 021bc2418d698fe2fc08e108bcba85d609dfed4b Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sat, 11 Apr 2026 09:42:40 +0000
Subject: Add dev shortcut to inject a synthetic test track
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Long-press the record FAB while NOT recording to immediately save a
pre-built 30-minute west/return circuit from Honokohau Harbor. Uses the
existing startTrack/addPoint/stopTrack pipeline so the full save flow —
TrackSummarySheet, GPX file write, past-tracks list — all execute without
needing to move. Points carry manually-set timestampMs values (30 min in
the past, 2-min spacing) so the 2-minute duration validation passes.

https://claude.ai/code/session_01HXPjBsogsJVRwCiekDGkJX
---
 .../src/main/kotlin/org/terst/nav/MainActivity.kt  |  8 ++--
 .../main/kotlin/org/terst/nav/ui/MainViewModel.kt  | 44 +++++++++++++++++++++-
 2 files changed, 48 insertions(+), 4 deletions(-)

(limited to 'android-app/app')

diff --git a/android-app/app/src/main/kotlin/org/terst/nav/MainActivity.kt b/android-app/app/src/main/kotlin/org/terst/nav/MainActivity.kt
index 01971a6..d0b0d87 100644
--- a/android-app/app/src/main/kotlin/org/terst/nav/MainActivity.kt
+++ b/android-app/app/src/main/kotlin/org/terst/nav/MainActivity.kt
@@ -155,11 +155,13 @@ class MainActivity : AppCompatActivity(), SafetyFragment.SafetyListener {
             if (!viewModel.isRecording.value) viewModel.startTrack()
         }
         fabRecordTrack.setOnLongClickListener {
+            it.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS)
             if (viewModel.isRecording.value) {
-                it.performHapticFeedback(HapticFeedbackConstants.LONG_PRESS)
                 viewModel.stopTrack()
-                true
-            } else false
+            } else {
+                viewModel.injectTestTrack()
+            }
+            true
         }
 
         fabRecenter.setOnClickListener { mapHandler?.recenter() }
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
index df31949..6ec8c76 100644
--- 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
@@ -90,7 +90,49 @@ class MainViewModel(
         }
     }
 
-    fun addGpsPoint(lat: Double, lon: Double, sogKnots: Double, cogDeg: Double) {
+    /** Dev shortcut: saves a synthetic 30-min Honokohau circuit without requiring GPS movement. */
+    fun injectTestTrack() {
+        viewModelScope.launch {
+            val startMs = System.currentTimeMillis() - 30 * 60_000L
+            val points = buildTestTrack(startMs)
+            trackRepository.startTrack()
+            points.forEach { trackRepository.addPoint(it) }
+            val summary = trackRepository.stopTrack()
+            _pastTracks.value = trackRepository.getPastTracks()
+            _trackPoints.value = emptyList()
+            _isRecording.value = false
+            summary?.let { _trackSummary.emit(it) }
+        }
+    }
+
+    private fun buildTestTrack(startMs: Long): List<TrackPoint> {
+        // Honokohau Harbor, Kona, HI: 19.669°N, 156.027°W
+        // Heads west (~270°) for first half, returns east (~90°) for second half
+        val baseLat = 19.669
+        val baseLon = -156.027
+        val nmPerDegreeLon = 60.0 * kotlin.math.cos(kotlin.math.PI / 180.0 * baseLat)
+        val sogKt = 4.5
+        val count = 16
+        return (0 until count).map { i ->
+            val tMs = startMs + i * 2 * 60_000L
+            val outbound = i < count / 2
+            val legIndex = if (outbound) i else (count - 1 - i)
+            val distNm = sogKt * (legIndex * 2.0 / 60.0)
+            val lonOffset = distNm / nmPerDegreeLon
+            val lat = baseLat + if (!outbound) 0.003 else 0.0   // slight northing on return
+            val lon = baseLon - lonOffset
+            val cogDeg = if (outbound) 270.0 else 90.0
+            val sog = sogKt + (i % 3 - 1) * 0.4   // mild variation
+            TrackPoint(
+                lat = lat, lon = lon,
+                sogKnots = sog, cogDeg = cogDeg,
+                waveHeightM = 0.6,
+                timestampMs = tMs
+            )
+        }
+    }
+
+(lat: Double, lon: Double, sogKnots: Double, cogDeg: Double) {
         val conditions = _marineConditions.value
         val forecast = _forecast.value.firstOrNull()
         val point = TrackPoint(
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