Fix update failure when rebooting during installation

This commit resolves the issue where the update action on the UF Server
 would become stuck in the updating state if the device rebooted during
 the update installation process, preventing the deployment of the same
 artifact file to the target again.
UF-849

Signed-off-by: Saeed Rezaee <saeed.rezaee@kynetics.it>

uf-client-service/src/main/kotlin/com/kynetics/uf/android/update/CurrentUpdateState.kt

@@ -15,6 +15,7 @@ import android.content.Context
 import android.content.Context.MODE_PRIVATE
 import android.content.SharedPreferences
 import android.os.Environment
+import android.os.SystemClock
 import android.os.SystemProperties
 import android.util.Log
 import com.kynetics.uf.android.BuildConfig
@@ -226,6 +227,7 @@ class CurrentUpdateState(context: Context) {
                 .remove(UPDATE_IS_STARTED_KEY)
                 .remove(PENDING_AB_REBOOT_SHAREDPREFERENCES_KEY)
                 .remove(UPDATE_STARTED_IN_VERSION)
+                .remove(DEVICE_BOOT_DATE_WHEN_UPDATE_STARTED_KEY)
                 .apply()
     }
 
@@ -252,6 +254,36 @@ class CurrentUpdateState(context: Context) {
         }
     }
 
+    /**
+     * Returns the date-time that the device was booted in seconds.
+     *
+     * Note: This function should not be called when device is booting up.
+     * Because the current time is not reliable until the device is fully booted and connected to the network.
+     * @return the boot time in seconds since epoch.
+     * */
+    private fun getBootDateInSeconds(): Long {
+        return (System.currentTimeMillis() - SystemClock.elapsedRealtime()) / 1000
+    }
+
+    fun storeDeviceBootDate() {
+        sharedPreferences.edit()
+            .putLong(DEVICE_BOOT_DATE_WHEN_UPDATE_STARTED_KEY, getBootDateInSeconds())
+            .apply()
+    }
+
+    private fun getDeviceBootDateStoredInPreferences(): Long {
+        return sharedPreferences.getLong(DEVICE_BOOT_DATE_WHEN_UPDATE_STARTED_KEY, 0)
+    }
+
+    fun isDeviceRebootedAfterUpdateStarted(): Boolean {
+        val currentBootDate = getBootDateInSeconds() / 10
+        val previousBootDate = getDeviceBootDateStoredInPreferences() / 10
+        if (previousBootDate == 0L) {
+            return false
+        }
+        return currentBootDate != previousBootDate
+    }
+
     fun parseLastLogFile(): List<String> {
         return try {
             val lastLogFile = File(RECOVERY_CACHE, LAST_LOG_FILE_NAME)
@@ -269,6 +301,7 @@ class CurrentUpdateState(context: Context) {
         private const val PENDING_AB_SHAREDPREFERENCES_KEY = "PENDING_AB_OTA_KEY"
         private const val PENDING_AB_REBOOT_SHAREDPREFERENCES_KEY = "PENDING_AB_REBOOT_OTA_KEY"
         private const val UPDATE_STARTED_IN_VERSION = "UPDATE_START_VERSION_KEY"
+        private const val DEVICE_BOOT_DATE_WHEN_UPDATE_STARTED_KEY = "DEVICE_BOOT_DATE_WHEN_UPDATE_STARTED"
         private const val TAG = "CurrentUpdateState"
         private val SHARED_PREFERENCES_FILE_NAME = "CURRENT_UPDATE_STATE"
         private val APK_DISTRIBUTION_REPORT_SUCCESS_KEY = "APK_DISTRIBUTION_REPORT_SUCCESS"

uf-client-service/src/main/kotlin/com/kynetics/uf/android/update/system/ABOtaInstaller.kt

@@ -123,9 +123,10 @@ internal object ABOtaInstaller : OtaInstaller {
         val abInstallationPending = currentUpdateState.isABInstallationPending(artifact)
         val isDeviceFailedToRebootOrUFServiceCrashed =
             currentUpdateState.isDeviceFailedToRebootOrUFServiceCrashed()
-
+        val deviceRebootedWhileUpdating = currentUpdateState.isDeviceRebootedAfterUpdateStarted()
         return when {
-            abInstallationPending && isDeviceFailedToRebootOrUFServiceCrashed -> {
+            abInstallationPending && !deviceRebootedWhileUpdating &&
+                    isDeviceFailedToRebootOrUFServiceCrashed -> {
                 updateEngine.bind(
                     MyUpdateEngineCallback(
                         context,
@@ -135,7 +136,7 @@ internal object ABOtaInstaller : OtaInstaller {
                 )
                 installationResult(updateStatus, messenger, artifact)
             }
-            abInstallationPending -> {
+            abInstallationPending && !isDeviceFailedToRebootOrUFServiceCrashed -> {
                 val result = currentUpdateState.lastABInstallationResult()
                 val message = "Installation result of Ota named ${artifact.filename} is " +
                         if (result is CurrentUpdateState.InstallationResult.Success) "success" else "failure"
@@ -169,6 +170,7 @@ internal object ABOtaInstaller : OtaInstaller {
                         updateStatus, currentUpdateState
                     )
                 )
+                currentUpdateState.storeDeviceBootDate()
                 currentUpdateState.addPendingABInstallation(artifact)
                 currentUpdateState.addUFServiceVersionThatStartedTheUpdate()
                 messenger.sendMessageToServer(