init OMH: auth client provider

app/src/main/java/com/amaze/filemanager/utils/omh/OMHClientHelper.kt

@@ -0,0 +1,42 @@
+package com.amaze.filemanager.utils.omh
+
+import android.content.Context
+import com.amaze.filemanager.BuildConfig
+import com.openmobilehub.android.auth.core.OmhAuthClient
+import com.openmobilehub.android.auth.core.OmhAuthProvider
+
+class OMHClientHelper {
+
+    companion object {
+
+        @Volatile
+        var instance: OmhAuthClient? = null
+
+        @JvmStatic
+        public fun getGoogleAuthClient(context: Context): OmhAuthClient {
+            if (instance == null) {
+                synchronized(this) {
+                    val omhAuthProvider = OmhAuthProvider.Builder()
+                        .addNonGmsPath(
+                            "com.openmobilehub.android.auth.plugin.google.nongms.presentation.OmhAuthFactoryImpl"
+                        )
+                        .addGmsPath(
+                            "com.openmobilehub.android.auth.plugin.google.gms.OmhAuthFactoryImpl"
+                        )
+                        .build()
+
+                    instance = omhAuthProvider
+                        .provideAuthClient(
+                            scopes = listOf("openid", "email", "profile"),
+                            clientId = BuildConfig.GOOGLE_CLIENT_ID,
+                            context = context
+                        )
+
+                    instance!!.initialize()
+                }
+            }
+
+            return instance!!
+        }
+    }
+}