smaller database and faster idle syncs

android/app/src/main/kotlin/wtf/openstrap/openstrap_edge/NativeChannels.kt

@@ -37,6 +37,7 @@ object NativeChannels {
     private const val DEVICE_ACTIONS_CHANNEL = "openstrap/device_actions"
     private const val ANDROID_BG_CHANNEL = "openstrap/android_background"
     private const val BLE_NATIVE_CHANNEL = "openstrap/ble_native"
+    private const val STORAGE_CHANNEL = "openstrap/storage"
     const val TASKER_CHANNEL = "openstrap/tasker"
     const val ACTION_DOUBLE_TAP = "wtf.openstrap.openstrap_edge.DOUBLE_TAP"
     private const val TASKER_TOKEN_KEY = "tasker_auth_token"
@@ -183,6 +184,24 @@ object NativeChannels {
                 }
             }
 
+        // Free space on the volume holding the database, for "Compact database".
+        MethodChannel(engine.dartExecutor.binaryMessenger, STORAGE_CHANNEL)
+            .setMethodCallHandler { call, result ->
+                when (call.method) {
+                    "freeBytes" -> {
+                        val path = call.argument<String>("path") ?: app.filesDir.path
+                        result.success(
+                            try {
+                                android.os.StatFs(path).availableBytes
+                            } catch (e: IllegalArgumentException) {
+                                null
+                            }
+                        )
+                    }
+                    else -> result.notImplemented()
+                }
+            }
+
         // Band-gesture actions. All no-risk OS APIs: media-key dispatch (works for any
         // player, no permission), system media volume, ringtone + vibrate, torch.
         MethodChannel(engine.dartExecutor.binaryMessenger, DEVICE_ACTIONS_CHANNEL)

ios/Runner/AppDelegate.swift

@@ -95,6 +95,10 @@ import CoreMotion
     if let registrar = registry.registrar(forPlugin: "ConfigBridge") {
       ConfigBridge.register(messenger: registrar.messenger())
     }
+    // Free space on the volume holding the database, for "Compact database".
+    if let registrar = registry.registrar(forPlugin: "StorageBridge") {
+      StorageBridge.register(messenger: registrar.messenger())
+    }
     // The phone's OWN step count (CMPedometer), not HealthKit's multi-writer
     // aggregate. See lib/health/phone_pedometer.dart.
     if let registrar = registry.registrar(forPlugin: "PedometerBridge") {
@@ -123,6 +127,38 @@ import CoreMotion
   }
 }
 
+enum StorageBridge {
+  private static let channelName = "openstrap/storage"
+
+  static func register(messenger: FlutterBinaryMessenger) {
+    let channel = FlutterMethodChannel(name: channelName, binaryMessenger: messenger)
+    channel.setMethodCallHandler { call, result in
+      switch call.method {
+      case "freeBytes":
+        // Bytes a write can actually use. The "important usage" figure counts
+        // purgeable space iOS frees on demand, which is what a VACUUM sees.
+        let path = (call.arguments as? [String: Any])?["path"] as? String
+          ?? NSHomeDirectory()
+        let url = URL(fileURLWithPath: path)
+        do {
+          let values = try url.resourceValues(
+            forKeys: [.volumeAvailableCapacityForImportantUsageKey])
+          if let bytes = values.volumeAvailableCapacityForImportantUsage {
+            result(NSNumber(value: bytes))
+            return
+          }
+          let attrs = try FileManager.default.attributesOfFileSystem(forPath: path)
+          result(attrs[.systemFreeSize] as? NSNumber)
+        } catch {
+          result(nil)
+        }
+      default:
+        result(FlutterMethodNotImplemented)
+      }
+    }
+  }
+}
+
 enum ConfigBridge {
   private static let channelName = "openstrap/ios_config"
 

lib/coach/coach_db.dart

@@ -97,7 +97,9 @@ class CoachDb {
     'workout_suggestions', 'workout_route', 'live_coverage',
     'session_score_mask', 'session_sensor',
     // raw / decoded substrate
-    'raw_records', 'raw_archive', 'decoded_onehz', 'decoded_rr', 'samples',
+    'raw_records', 'raw_archive', 'raw_archive_frames', 'raw_archive_legacy',
+    'raw_archive_view',
+    'decoded_onehz', 'decoded_rr', 'samples',
     'events', 'band_events', 'band_battery', 'substrate_archive',
     'device_coverage', 'signal_priority',
     // WHOOP MG ECG. `ecg_reading` is a base table of an allowed view, so the