use shared client in dart

fix android

mobile/android/app/src/main/cpp/native_buffer.c

@@ -36,3 +36,17 @@ Java_app_alextran_immich_NativeBuffer_copy(
         memcpy((void *) destAddress, (char *) src + offset, length);
     }
 }
+
+/**
+ * Creates a JNI global reference to the given object and returns its address.
+ * The caller is responsible for deleting the global reference when it's no longer needed.
+ */
+JNIEXPORT jlong JNICALL
+Java_app_alextran_immich_NativeBuffer_createGlobalRef(JNIEnv *env, jobject clazz, jobject obj) {
+    if (obj == NULL) {
+        return 0;
+    }
+
+    jobject globalRef = (*env)->NewGlobalRef(env, obj);
+    return (jlong) globalRef;
+}

mobile/android/app/src/main/kotlin/app/alextran/immich/NativeBuffer.kt

@@ -23,6 +23,9 @@ object NativeBuffer {
 
   @JvmStatic
   external fun copy(buffer: ByteBuffer, destAddress: Long, offset: Int, length: Int)
+
+  @JvmStatic
+  external fun createGlobalRef(obj: Any): Long
 }
 
 class NativeByteBuffer(initialCapacity: Int) {

mobile/android/app/src/main/kotlin/app/alextran/immich/core/Network.g.kt

@@ -182,6 +182,7 @@ interface NetworkApi {
   fun addCertificate(clientData: ClientCertData, callback: (Result<Unit>) -> Unit)
   fun selectCertificate(promptText: ClientCertPrompt, callback: (Result<ClientCertData>) -> Unit)
   fun removeCertificate(callback: (Result<Unit>) -> Unit)
+  fun getClientPointer(): Long
 
   companion object {
     /** The codec used by NetworkApi. */
@@ -248,6 +249,21 @@ interface NetworkApi {
           channel.setMessageHandler(null)
         }
       }
+      run {
+        val channel = BasicMessageChannel<Any?>(binaryMessenger, "dev.flutter.pigeon.immich_mobile.NetworkApi.getClientPointer$separatedMessageChannelSuffix", codec)
+        if (api != null) {
+          channel.setMessageHandler { _, reply ->
+            val wrapped: List<Any?> = try {
+              listOf(api.getClientPointer())
+            } catch (exception: Throwable) {
+              NetworkPigeonUtils.wrapError(exception)
+            }
+            reply.reply(wrapped)
+          }
+        } else {
+          channel.setMessageHandler(null)
+        }
+      }
     }
   }
 }

mobile/android/app/src/main/kotlin/app/alextran/immich/core/NetworkApiPlugin.kt

@@ -13,6 +13,7 @@ import android.widget.LinearLayout
 import androidx.activity.ComponentActivity
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
+import app.alextran.immich.NativeBuffer
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import com.google.android.material.textfield.TextInputEditText
 import com.google.android.material.textfield.TextInputLayout
@@ -98,6 +99,11 @@ private class NetworkApiImpl(private val context: Context) : NetworkApi {
     callback(Result.success(Unit))
   }
 
+  override fun getClientPointer(): Long {
+    val client = HttpClientManager.getClient()
+    return NativeBuffer.createGlobalRef(client)
+  }
+
   private fun handlePickedFile(uri: Uri) {
     val callback = pendingCallback ?: return
     pendingCallback = null