AppUtil: Compare timestamp for nightly builds

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/build.gradle.kts

@@ -19,6 +19,7 @@
  *
  */
 
+import java.time.Instant
 import java.util.Properties
 
 plugins {
@@ -51,6 +52,7 @@ android {
 
         testInstrumentationRunner = "com.aurora.store.HiltInstrumentationTestRunner"
         testInstrumentationRunnerArguments["disableAnalytics"] = "true"
+        buildConfigField("long", "TIMESTAMP", "${Instant.now().epochSecond}")
     }
 
     signingConfigs {

app/src/main/java/com/aurora/store/data/model/SelfUpdate.kt

@@ -36,7 +36,8 @@ data class SelfUpdate(
     @SerializedName("fdroid_build") var fdroidBuild: String = String(),
     @SerializedName("updated_on") var updatedOn: String = String(),
     val changelog: String = String(),
-    val size: Long = 0L
+    val size: Long = 0L,
+    val timestamp: Long = 0L
 ) {
     companion object {
         private const val BASE_URL = "https://gitlab.com/AuroraOSS/AuroraStore/-/raw/master"

app/src/main/java/com/aurora/store/util/AppUtil.kt

@@ -123,7 +123,13 @@ class AppUtil @Inject constructor(
                 val selfUpdate =
                     gson.fromJson(String(response.responseBytes), SelfUpdate::class.java)
 
-                if (selfUpdate.versionCode > BuildConfig.VERSION_CODE) {
+                val isUpdate = when (BuildConfig.BUILD_TYPE) {
+                    RELEASE -> selfUpdate.versionCode > BuildConfig.VERSION_CODE
+                    NIGHTLY -> selfUpdate.timestamp > BuildConfig.TIMESTAMP
+                    else -> false
+                }
+
+                if (isUpdate) {
                     if (CertUtil.isFDroidApp(context, BuildConfig.APPLICATION_ID)) {
                         if (selfUpdate.fdroidBuild.isNotEmpty()) {
                             return@withContext SelfUpdate.toApp(selfUpdate, context)