Fix bug where we need to use HashMap[] instead of Map<HashMap> for batch operations

android/src/androidTest/java/com/getcapacitor/android/LevelDBWrapperTest.java

@@ -101,14 +101,14 @@ public class LevelDBWrapperTest {
         String batchValue2_b64 = Base64.getEncoder().encodeToString(batchValue2.getBytes());
 
         // Perform batch put operations
-        Map<String, String>[] operations = new Map[2];
-        Map<String, String> operation1 = new HashMap<>();
+        HashMap<String, String>[] operations = new HashMap[2];
+        HashMap<String, String> operation1 = new HashMap<>();
         operation1.put("type", "put");
         operation1.put("key", batchKey1_b64);
         operation1.put("value", batchValue1_b64);
         operations[0] = operation1;
 
-        Map<String, String> operation2 = new HashMap<>();
+        HashMap<String, String> operation2 = new HashMap<>();
         operation2.put("type", "put");
         operation2.put("key", batchKey2_b64);
         operation2.put("value", batchValue2_b64);

android/src/main/cpp/LevelDB_JNI.cpp

@@ -241,7 +241,7 @@ JNIEXPORT void JNICALL Java_org_futo_polycentric_leveldbcapacitor_MobileLevelImp
             batch.Put(decoded_key, decoded_value);
 
             env->ReleaseStringUTFChars(value, value_cstr);
-        } else if (strcmp(type_cstr, "delete") == 0) {
+        } else if (strcmp(type_cstr, "del") == 0) {
             batch.Delete(decoded_key);
         } else {
             throwJavaException(env, "Invalid operation type");

android/src/main/java/org/futo/polycentric/leveldbcapacitor/MobileLevelImpl.java

@@ -17,7 +17,7 @@ public class MobileLevelImpl {
     public native void db_delete(String dbName, String key);
     public native void db_clear(String dbName) throws Exception;
     public native void db_close(String dbName);
-    public native void db_batch(String dbName, Map<String, String>[] operations);
+    public native void db_batch(String dbName, HashMap<String, String>[] operations);
     public native ArrayList<ArrayList<String>> db_iterator(String dbName, HashMap<String, Object> options);
 
     static {

android/src/main/java/org/futo/polycentric/leveldbcapacitor/MobileLevelPlugin.java

@@ -140,17 +140,19 @@ public class MobileLevelPlugin extends Plugin {
         }
 
         try {
-            Map<String, String>[] java_operations = new Map[operations.length()];
+            HashMap<String, String>[] javaOperations = new HashMap[operations.length()];
             for (int i = 0; i < operations.length(); i++) {
-                JSONObject operation = operations.getJSONObject(0);
-                Map<String, String> java_operation = new HashMap<>();
-                java_operation.put("type", operation.getString("type"));
-                java_operation.put("key", operation.getString("key"));
-                java_operation.put("value", operation.getString("value"));
-                java_operations[i] = java_operation;
+                JSONObject operation = operations.getJSONObject(i); // corrected to getJSONObject(i)
+                HashMap<String, String> javaOperation = new HashMap<>();
+                javaOperation.put("type", operation.getString("type"));
+                javaOperation.put("key", operation.getString("key"));
+                if (operation.has("value")) {
+                    javaOperation.put("value", operation.getString("value"));
+                }
+                javaOperations[i] = javaOperation;
             }
-            
-            mobileLevel.db_batch(dbName, java_operations);
+
+            mobileLevel.db_batch(dbName, javaOperations);
             call.resolve();
         } catch (Exception e) {
             call.reject(e.getMessage());