feat: add basic group info wrapper to libsession util

libsession-util/src/main/cpp/CMakeLists.txt

@@ -30,7 +30,8 @@ set(SOURCES
         config_base.cpp
         contacts.cpp
         conversation.cpp
-        util.cpp)
+        util.cpp
+        group_info.cpp)
 
 add_library( # Sets the name of the library.
         session_util

libsession-util/src/main/cpp/group_info.cpp

@@ -0,0 +1,27 @@
+#include <jni.h>
+#include "group_info.h"
+
+
+extern "C"
+JNIEXPORT jobject JNICALL
+Java_network_loki_messenger_libsession_1util_GroupInfoConfig_newInstance__Ljava_lang_String_2(
+        JNIEnv *env, jobject thiz, jstring pub_key_hex) {
+    auto pub_key = env->GetStringUTFChars(pub_key_hex, nullptr);
+
+    env->ReleaseStringUTFChars(pub_key_hex, pub_key);
+}
+
+extern "C"
+JNIEXPORT jobject JNICALL
+Java_network_loki_messenger_libsession_1util_GroupInfoConfig_newInstance__Ljava_lang_String_2_3B(
+        JNIEnv *env, jobject thiz, jstring pub_key_hex, jbyteArray secret_key) {
+    // TODO: implement newInstance()
+}
+
+extern "C"
+JNIEXPORT jobject JNICALL
+Java_network_loki_messenger_libsession_1util_GroupInfoConfig_newInstance__Ljava_lang_String_2_3B_3B(
+        JNIEnv *env, jobject thiz, jstring pub_key_hex, jbyteArray secret_key,
+        jbyteArray initial_dump) {
+    // TODO: implement newInstance()
+}

libsession-util/src/main/cpp/group_info.h

@@ -0,0 +1,6 @@
+#ifndef SESSION_ANDROID_GROUP_INFO_H
+#define SESSION_ANDROID_GROUP_INFO_H
+
+#include "util.h"
+
+#endif //SESSION_ANDROID_GROUP_INFO_H

libsession-util/src/main/java/network/loki/messenger/libsession_util/Config.kt

@@ -23,6 +23,7 @@ sealed class ConfigBase(protected val /* yucky */ pointer: Long) {
             is Contacts -> Kind.CONTACTS
             is ConversationVolatileConfig -> Kind.CONVO_INFO_VOLATILE
             is UserGroupsConfig -> Kind.GROUPS
+            is GroupInfoConfig -> Kind.CLOSED_GROUP_INFO
         }
 
         // TODO: time in future to activate (hardcoded to 1st jan 2024 for testing, change before release)
@@ -197,4 +198,14 @@ class UserGroupsConfig(pointer: Long): ConfigBase(pointer) {
     external fun all(): List<GroupInfo>
     external fun allCommunityInfo(): List<GroupInfo.CommunityGroupInfo>
     external fun allLegacyGroupInfo(): List<GroupInfo.LegacyGroupInfo>
-}
+}
+
+class GroupInfoConfig(pointer: Long): ConfigBase(pointer) {
+    companion object {}
+    init {
+        System.loadLibrary("session_util")
+    }
+    external fun newInstance(pubKeyHex: String): GroupInfoConfig
+    external fun newInstance(pubKeyHex: String, secretKey: ByteArray?): GroupInfoConfig
+    external fun newInstance(pubKeyHex: String, secretKey: ByteArray?, initialDump: ByteArray): GroupInfoConfig
+}