Use user agent template from firebase remote config (#2139)

* Use user agent template from firebase remote config

* Improve base class usage, activation refactor

app/build.gradle

@@ -246,6 +246,7 @@ dependencies {
     playImplementation 'com.google.firebase:firebase-analytics-ktx'
     playImplementation 'com.google.firebase:firebase-messaging:'
     playImplementation 'com.google.firebase:firebase-crashlytics:'
+    playImplementation 'com.google.firebase:firebase-config-ktx'
     playImplementation 'com.google.android.play:core:1.10.3'
     playImplementation 'com.google.android.play:core-ktx:1.8.1'
     playImplementation 'com.google.android.gms:play-services-ads:21.4.0'

app/src/fdroid/java/io/github/wulkanowy/utils/RemoteConfigHelper.kt

@@ -0,0 +1,7 @@
+package io.github.wulkanowy.utils
+
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class RemoteConfigHelper @Inject constructor() : BaseRemoteConfigHelper()

app/src/hms/java/io/github/wulkanowy/utils/RemoteConfigHelper.kt

@@ -0,0 +1,7 @@
+package io.github.wulkanowy.utils
+
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class RemoteConfigHelper @Inject constructor() : BaseRemoteConfigHelper()

app/src/main/java/io/github/wulkanowy/WulkanowyApp.kt

@@ -34,11 +34,15 @@ class WulkanowyApp : Application(), Configuration.Provider {
     @Inject
     lateinit var adsHelper: AdsHelper
 
+    @Inject
+    lateinit var remoteConfigHelper: RemoteConfigHelper
+
     override fun onCreate() {
         super.onCreate()
         initializeAppLanguage()
         themeManager.applyDefaultTheme()
         adsHelper.initialize()
+        remoteConfigHelper.initialize()
         initLogging()
     }
 

app/src/main/java/io/github/wulkanowy/data/DataModule.kt

@@ -19,6 +19,7 @@ import io.github.wulkanowy.data.db.SharedPrefProvider
 import io.github.wulkanowy.data.repositories.PreferencesRepository
 import io.github.wulkanowy.sdk.Sdk
 import io.github.wulkanowy.utils.AppInfo
+import io.github.wulkanowy.utils.RemoteConfigHelper
 import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.json.Json
 import okhttp3.MediaType.Companion.toMediaType
@@ -36,10 +37,11 @@ internal class DataModule {
 
     @Singleton
     @Provides
-    fun provideSdk(chuckerInterceptor: ChuckerInterceptor) =
+    fun provideSdk(chuckerInterceptor: ChuckerInterceptor, remoteConfig: RemoteConfigHelper) =
         Sdk().apply {
             androidVersion = android.os.Build.VERSION.RELEASE
             buildTag = android.os.Build.MODEL
+            userAgentTemplate = remoteConfig.userAgentTemplate
             setSimpleHttpLogger { Timber.d(it) }
 
             // for debug only

app/src/main/java/io/github/wulkanowy/utils/BaseRemoteConfigHelper.kt

@@ -0,0 +1,9 @@
+package io.github.wulkanowy.utils
+
+abstract class BaseRemoteConfigHelper {
+
+    open fun initialize() = Unit
+
+    open val userAgentTemplate: String
+        get() = RemoteConfigDefaults.USER_AGENT_TEMPLATE.value as String
+}

app/src/main/java/io/github/wulkanowy/utils/RemoteConfigDefaults.kt

@@ -0,0 +1,8 @@
+package io.github.wulkanowy.utils
+
+enum class RemoteConfigDefaults(val value: Any) {
+    USER_AGENT_TEMPLATE(""),
+    ;
+
+    val key get() = name.lowercase()
+}

app/src/play/java/io/github/wulkanowy/utils/RemoteConfigHelper.kt

@@ -0,0 +1,35 @@
+package io.github.wulkanowy.utils
+
+import android.content.Context
+import com.google.firebase.FirebaseApp
+import com.google.firebase.ktx.Firebase
+import com.google.firebase.remoteconfig.ktx.remoteConfig
+import com.google.firebase.remoteconfig.ktx.remoteConfigSettings
+import dagger.hilt.android.qualifiers.ApplicationContext
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class RemoteConfigHelper @Inject constructor(
+    @ApplicationContext private val context: Context,
+    private val appInfo: AppInfo,
+) : BaseRemoteConfigHelper() {
+
+    fun initialize() {
+        FirebaseApp.initializeApp(context)
+
+        Firebase.remoteConfig.setConfigSettingsAsync(remoteConfigSettings {
+            fetchTimeoutInSeconds = 3
+            if (appInfo.isDebug) {
+                minimumFetchIntervalInSeconds = 0
+            }
+        })
+        Firebase.remoteConfig.setDefaultsAsync(RemoteConfigDefaults.values().associate {
+            it.key to it.value
+        })
+        Firebase.remoteConfig.fetchAndActivate()
+    }
+
+    override val userAgentTemplate: String
+        get() = Firebase.remoteConfig.getString(RemoteConfigDefaults.USER_AGENT_TEMPLATE.key)
+}