fix: revert updateHasSynced change that removed null pointer handling

Author: DominicGBauer

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 1.0.0-BETA22
+* Revert `updateHasSynced` internal change that resulted in an error
+
 ## 1.0.0-BETA21
 
 * Improve error handling for Swift by adding @Throws annotation so errors can be handled in Swift

core/src/commonMain/kotlin/com/powersync/db/PowerSyncDatabaseImpl.kt

@@ -279,17 +279,28 @@ internal class PowerSyncDatabaseImpl(
     }
 
     private suspend fun updateHasSynced() {
-        // Query the database to see if any data has been synced.
-        val timestamp =
-            internalDb.getOptional("SELECT powersync_last_synced_at() as synced_at", null) { cursor ->
-                cursor.getString(0) ?: ""
+        try {
+            data class SyncedAt(
+                val syncedAt: String?,
+            )
+            // Query the database to see if any data has been synced
+            val timestamp =
+                internalDb
+                    .getOptional("SELECT powersync_last_synced_at() as synced_at", null) { cursor ->
+                        SyncedAt(syncedAt = cursor.getStringOptional("synced_at"))
+                    }?.syncedAt
+            val hasSynced = timestamp != null
+            if (hasSynced != currentStatus.hasSynced) {
+                val formattedDateTime = "${timestamp!!.replace(" ","T").toLocalDateTime()}Z"
+                val lastSyncedAt = Instant.parse(formattedDateTime)
+                currentStatus.update(hasSynced = hasSynced, lastSyncedAt = lastSyncedAt)
+            }
+        } catch (e: Exception) {
+            if (e is NullPointerException) {
+                // No data has been synced which results in a null pointer exception
+                // and can be safely ignored.
+                return
             }
-
-        val hasSynced = timestamp != ""
-        if (hasSynced != currentStatus.hasSynced) {
-            val formattedDateTime = "${timestamp!!.replace(" ", "T").toLocalDateTime()}Z"
-            val lastSyncedAt = Instant.parse(formattedDateTime)
-            currentStatus.update(hasSynced = hasSynced, lastSyncedAt = lastSyncedAt)
         }
     }
 

gradle.properties

@@ -17,7 +17,7 @@ development=true
 RELEASE_SIGNING_ENABLED=true
 # Library config
 GROUP=com.powersync
-LIBRARY_VERSION=1.0.0-BETA21
+LIBRARY_VERSION=1.0.0-BETA22
 GITHUB_REPO=https://github.com/powersync-ja/powersync-kotlin.git
 # POM
 POM_URL=https://github.com/powersync-ja/powersync-kotlin/