feat: add pushes seqnos and test for push content

libsession-util/src/androidTest/java/network/loki/messenger/libsession_util/ExampleInstrumentedTest.kt

@@ -27,6 +27,23 @@ class ExampleInstrumentedTest {
         userProfile.free()
     }
 
+    @Test
+    fun jni_user_profile_c_api() {
+        val userProfile = UserProfile.newInstance()
+
+        assertFalse(userProfile.needsPush())
+        assertFalse(userProfile.needsDump())
+
+        val name = userProfile.getName()
+        assertNull(name)
+
+        val (toPush, seqNo) = userProfile.push()
+        assertEquals("d1:#i0e1:&de1:<le1:=dee", toPush)
+        assertEquals(0, seqNo)
+
+        userProfile.free()
+    }
+
     @Test
     fun jni_setting_getting() {
         val userProfile = UserProfile.newInstance()

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

@@ -31,25 +31,26 @@ Java_network_loki_messenger_libsession_1util_UserProfile_00024Companion_newInsta
 extern "C" JNIEXPORT void JNICALL
 Java_network_loki_messenger_libsession_1util_UserProfile_setName(
         JNIEnv* env,
-        jobject obj,
+        jobject thiz,
         jstring newName) {
-    auto profile = ptrToProfile(env, obj);
+    auto profile = ptrToProfile(env, thiz);
     profile->set_name(env->GetStringUTFChars(newName, nullptr));
 }
 
 extern "C"
 JNIEXPORT jstring JNICALL
-Java_network_loki_messenger_libsession_1util_UserProfile_getName(JNIEnv *env, jobject obj) {
+Java_network_loki_messenger_libsession_1util_UserProfile_getName(JNIEnv *env, jobject thiz) {
-    auto profile = ptrToProfile(env, obj);
+    auto profile = ptrToProfile(env, thiz);
     auto name = profile->get_name();
+    if (name == nullptr) return nullptr;
     jstring returnString = env->NewStringUTF(name->c_str());
     return returnString;
 }
 
 extern "C"
 JNIEXPORT void JNICALL
-Java_network_loki_messenger_libsession_1util_UserProfile_free(JNIEnv *env, jobject obj) {
+Java_network_loki_messenger_libsession_1util_UserProfile_free(JNIEnv *env, jobject thiz) {
-    auto profile = ptrToProfile(env, obj);
+    auto profile = ptrToProfile(env, thiz);
     delete profile;
 }
 
@@ -59,3 +60,28 @@ Java_network_loki_messenger_libsession_1util_ConfigBase_dirty(JNIEnv *env, jobje
     auto* configBase = ptrToConfigBase(env, thiz);
     return configBase->is_dirty();
 }
+extern "C"
+JNIEXPORT jboolean JNICALL
+Java_network_loki_messenger_libsession_1util_ConfigBase_needsPush(JNIEnv *env, jobject thiz) {
+    auto config = ptrToConfigBase(env, thiz);
+    return config->needs_push();
+}
+extern "C"
+JNIEXPORT jboolean JNICALL
+Java_network_loki_messenger_libsession_1util_ConfigBase_needsDump(JNIEnv *env, jobject thiz) {
+    auto config = ptrToConfigBase(env, thiz);
+    return config->needs_dump();
+}
+extern "C"
+JNIEXPORT jobject JNICALL
+Java_network_loki_messenger_libsession_1util_ConfigBase_push(JNIEnv *env, jobject thiz) {
+    auto config = ptrToConfigBase(env, thiz);
+    auto pair = config->push();
+    std::string to_push_str = pair.first;
+    jstring returnString = env->NewStringUTF(to_push_str.c_str());
+    jlong seqNo = pair.second;
+    jclass returnObjectClass = env->FindClass("network/loki/messenger/libsession_util/util/ConfigWithSeqNo");
+    jmethodID methodId = env->GetMethodID(returnObjectClass, "<init>", "(Ljava/lang/String;J)V");
+    jobject returnObject = env->NewObject(returnObjectClass, methodId, returnString, seqNo);
+    return returnObject;
+}

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

@@ -1,5 +1,7 @@
 package network.loki.messenger.libsession_util
 
+import network.loki.messenger.libsession_util.util.ConfigWithSeqNo
+
 
 sealed class ConfigBase(protected val /* yucky */ pointer: Long) {
     companion object {
@@ -8,6 +10,9 @@ sealed class ConfigBase(protected val /* yucky */ pointer: Long) {
         }
     }
     external fun dirty(): Boolean
+    external fun needsPush(): Boolean
+    external fun needsDump(): Boolean
+    external fun push(): ConfigWithSeqNo
 }
 
 class UserProfile(pointer: Long): ConfigBase(pointer) {
@@ -18,6 +23,6 @@ class UserProfile(pointer: Long): ConfigBase(pointer) {
         external fun newInstance(): UserProfile
     }
     external fun setName(newName: String)
-    external fun getName(): String
+    external fun getName(): String?
     external fun free()
 }

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

@@ -0,0 +1,28 @@
+package network.loki.messenger.libsession_util.util
+
+data class StringWithLen(private val bytes: ByteArray, private val len: Long) { // We might not need this class, could be helpful though
+
+    override fun toString(): String = bytes.decodeToString()
+
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (javaClass != other?.javaClass) return false
+
+        other as StringWithLen
+
+        if (!bytes.contentEquals(other.bytes)) return false
+        if (len != other.len) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int {
+        var result = bytes.contentHashCode()
+        result = 31 * result + len.hashCode()
+        return result
+    }
+
+}
+
+
+data class ConfigWithSeqNo(val config: String, val seqNo: Long)