feat: add basic conversation info volatile types and implementations, start working on tests

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

@@ -3,6 +3,7 @@ package network.loki.messenger.libsession_util
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
 import network.loki.messenger.libsession_util.util.Contact
+import network.loki.messenger.libsession_util.util.Conversation
 import network.loki.messenger.libsession_util.util.KeyPair
 import network.loki.messenger.libsession_util.util.Sodium
 import network.loki.messenger.libsession_util.util.UserPic
@@ -329,4 +330,26 @@ class InstrumentedTests {
         userProfile.free()
     }
 
+    @Test
+    fun jni_remove_all_test() {
+        val convos = ConversationVolatileConfig.newInstance(keyPair.secretKey)
+        assertEquals(0 /* number removed */, convos.eraseAll { true /* 'erase' every item */ })
+
+        val definitelyRealId = "050000000000000000000000000000000000000000000000000000000000000000"
+        val definitelyRealConvo = Conversation.OneToOne(definitelyRealId, System.currentTimeMillis(), false)
+        convos.set(definitelyRealConvo)
+
+        val anotherDefinitelyReadId = "051111111111111111111111111111111111111111111111111111111111111111"
+        val anotherDefinitelyRealConvo = Conversation.OneToOne(anotherDefinitelyReadId, System.currentTimeMillis(), false)
+        convos.set(anotherDefinitelyRealConvo)
+
+        assertEquals(2, convos.sizeOneToOnes())
+
+        val numErased = convos.eraseAll { convo ->
+            convo is Conversation.OneToOne && convo.sessionId == definitelyRealId
+        }
+        assertEquals(1, numErased)
+        assertEquals(1, convos.sizeOneToOnes())
+    }
+
 }

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

@@ -7,13 +7,75 @@ extern "C"
 JNIEXPORT jobject JNICALL
 Java_network_loki_messenger_libsession_1util_ConversationVolatileConfig_00024Companion_newInstance___3B(
         JNIEnv *env, jobject thiz, jbyteArray ed25519_secret_key) {
+    auto secret_key = util::ustring_from_bytes(env, ed25519_secret_key);
+    auto* convo_info_volatile = new session::config::ConvoInfoVolatile(secret_key, std::nullopt);
 
+    jclass convoClass = env->FindClass("network/loki/messenger/libsession_util/ConversationVolatileConfig");
+    jmethodID constructor = env->GetMethodID(convoClass, "<init>", "(J)V");
+    jobject newConfig = env->NewObject(convoClass, constructor, reinterpret_cast<jlong>(convo_info_volatile));
+
+    return newConfig;
 }
 extern "C"
 #pragma ide diagnostic ignored "bugprone-reserved-identifier"
 JNIEXPORT jobject JNICALL
 Java_network_loki_messenger_libsession_1util_ConversationVolatileConfig_00024Companion_newInstance___3B_3B(
         JNIEnv *env, jobject thiz, jbyteArray ed25519_secret_key, jbyteArray initial_dump) {
+    auto secret_key = util::ustring_from_bytes(env, ed25519_secret_key);
+    auto initial = util::ustring_from_bytes(env, initial_dump);
+    auto* convo_info_volatile = new session::config::ConvoInfoVolatile(secret_key, initial);
 
+    jclass convoClass = env->FindClass("network/loki/messenger/libsession_util/ConversationVolatileConfig");
+    jmethodID constructor = env->GetMethodID(convoClass, "<init>", "(J)V");
+    jobject newConfig = env->NewObject(convoClass, constructor, reinterpret_cast<jlong>(convo_info_volatile));
+
+    return newConfig;
 }
-#pragma clang diagnostic pop
+
+extern "C"
+JNIEXPORT void JNICALL
+Java_network_loki_messenger_libsession_1util_ConversationVolatileConfig_set(JNIEnv *env,
+                                                                            jobject thiz,
+                                                                            jobject to_store) {
+    auto conversations = ptrToConvoInfo(env, thiz);
+    auto one_to_one = deserialize_one_to_one(env, to_store);
+    conversations->set(*one_to_one);
+}
+
+extern "C"
+JNIEXPORT jint JNICALL
+Java_network_loki_messenger_libsession_1util_ConversationVolatileConfig_sizeOneToOnes(JNIEnv *env,
+                                                                                      jobject thiz) {
+    auto conversations = ptrToConvoInfo(env, thiz);
+    return conversations->size_1to1();
+}
+
+#pragma clang diagnostic pop
+extern "C"
+JNIEXPORT jint JNICALL
+Java_network_loki_messenger_libsession_1util_ConversationVolatileConfig_eraseAll(JNIEnv *env,
+                                                                                 jobject thiz,
+                                                                                 jobject predicate) {
+    auto conversations = ptrToConvoInfo(env, thiz);
+
+    jclass predicate_class = env->FindClass("kotlin/jvm/functions/Function1");
+    jmethodID predicate_call = env->GetMethodID(predicate_class, "invoke", "(Ljava/lang/Object;)Ljava/lang/Object;");
+
+    jclass bool_class = env->FindClass("java/lang/Boolean");
+    jfieldID bool_value = env->GetFieldID(bool_class, "value", "Z");
+
+    int removed = 0;
+
+    for (auto it = conversations->begin(); it != conversations->end(); ) {
+        auto result = env->CallObjectMethod(predicate, predicate_call, serialize_any(env, *it));
+        bool bool_result = env->GetBooleanField(result, bool_value);
+        if (bool_result) {
+            it = conversations->erase(it);
+            removed++;
+        } else {
+            ++it;
+        }
+    }
+
+    return removed;
+}

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

@@ -5,28 +5,108 @@
 #include "util.h"
 #include "session/config/convo_info_volatile.hpp"
 
-inline session::config::ConvoInfoVolatile *ptrToContacts(JNIEnv *env, jobject obj) {
+inline session::config::ConvoInfoVolatile *ptrToConvoInfo(JNIEnv *env, jobject obj) {
     jclass contactsClass = env->FindClass("network/loki/messenger/libsession_util/ConversationVolatileConfig");
     jfieldID pointerField = env->GetFieldID(contactsClass, "pointer", "J");
     return (session::config::ConvoInfoVolatile *) env->GetLongField(obj, pointerField);
 }
 
-inline jobject serialize_one_on_one(JNIEnv *env, session::config::convo::one_to_one one_to_one) {
-    // TODO serialize function
+inline jobject serialize_one_to_one(JNIEnv *env, session::config::convo::one_to_one *one_to_one) {
+    jclass clazz = env->FindClass("network/loki/messenger/libsession_util/util/Conversation$OneToOne");
+    jmethodID constructor = env->GetMethodID(clazz, "<init>", "(Ljava/lang/String;JZ)V");
+    auto session_id = env->NewStringUTF(one_to_one->session_id.data());
+    auto last_read = one_to_one->last_read;
+    auto unread = one_to_one->unread;
+    jobject serialized = env->NewObject(clazz, constructor, session_id, last_read, unread);
+    return serialized;
 }
 
-inline jobject serialize_open_group(JNIEnv *env, session::config::convo::open_group open_group) {
-    // TODO
+inline jobject serialize_open_group(JNIEnv *env, session::config::convo::open_group *open_group) {
+    jclass clazz = env->FindClass("network/loki/messenger/libsession_util/util/Conversation$OpenGroup");
+    jmethodID constructor = env->GetMethodID(clazz, "<init>", "(Ljava/lang/String;Ljava/lang/String;[BJZ)V");
+    auto base_url = env->NewStringUTF(open_group->base_url().data());
+    auto room = env->NewStringUTF(open_group->room().data());
+    auto pubkey_ustring = open_group->pubkey();
+    auto pubkey_jarray = util::bytes_from_ustring(env, session::ustring_view {pubkey_ustring.data(), pubkey_ustring.size()});
+    auto last_read = open_group->last_read;
+    auto unread = open_group->unread;
+    jobject serialized = env->NewObject(clazz, constructor, base_url, room, pubkey_jarray, last_read, unread);
+    return serialized;
 }
 
-inline jobject serialize_legacy_group(JNIEnv *env, session::config::convo::legacy_closed_group legacy_group) {
-
+inline jobject serialize_legacy_group(JNIEnv *env, session::config::convo::legacy_closed_group *legacy_group) {
+    jclass clazz = env->FindClass("network/loki/messenger/libsession_util/util/Conversation$LegacyClosedGroup");
+    jmethodID constructor = env->GetMethodID(clazz, "<init>", "(Ljava/lang/String;JZ)V");
+    auto group_id = env->NewStringUTF(legacy_group->id.data());
+    auto last_read = legacy_group->last_read;
+    auto unread = legacy_group->unread;
+    jobject serialized = env->NewObject(clazz, constructor, group_id, last_read, unread);
+    return serialized;
 }
 
-inline jobject serialize_any(JNIEnv *env, session::config::convo::any)
+inline jobject serialize_any(JNIEnv *env, session::config::convo::any any) {
+    if (auto* dm = std::get_if<session::config::convo::one_to_one>(&any)) {
+        return serialize_one_to_one(env, dm);
+    } else if (auto* og = std::get_if<session::config::convo::open_group>(&any)) {
+        return serialize_open_group(env, og);
+    } else if (auto* lgc = std::get_if<session::config::convo::legacy_closed_group>(&any)) {
+        return serialize_legacy_group(env, lgc);
+    }
+    return nullptr;
+}
 
-inline session::config::ConvoInfoVolatile* deserialize_convo_info(JNIEnv *env, jobject info) {
-    // TODO deserialize function
+inline session::config::convo::one_to_one* deserialize_one_to_one(JNIEnv *env, jobject info) {
+    auto clazz = env->FindClass("network/loki/messenger/libsession_util/util/Conversation$OneToOne");
+    auto id_getter = env->GetFieldID(clazz, "sessionId", "Ljava/lang/String;");
+    auto last_read_getter = env->GetFieldID(clazz, "lastRead", "J");
+    auto unread_getter = env->GetFieldID(clazz, "unread", "Z");
+    jstring id = static_cast<jstring>(env->GetObjectField(info, id_getter));
+    auto id_chars = env->GetStringUTFChars(id, nullptr);
+    std::string id_string = std::string{id_chars};
+    auto deserialized = new session::config::convo::one_to_one(id_string);
+    deserialized->last_read = env->GetLongField(info, last_read_getter);
+    deserialized->unread = env->GetBooleanField(info, unread_getter);
+    env->ReleaseStringUTFChars(id, id_chars);
+    return deserialized;
+}
+
+inline session::config::convo::open_group* deserialize_open_group(JNIEnv *env, jobject info) {
+    auto clazz = env->FindClass("network/loki/messenger/libsession_util/util/Conversation$OpenGroup");
+    auto url_getter = env->GetFieldID(clazz, "baseUrl", "Ljava/lang/String;");
+    auto room_getter = env->GetFieldID(clazz, "room", "Ljava/lang/String;");
+    auto pub_key_getter = env->GetFieldID(clazz, "pubKey", "[B");
+    auto last_read_getter = env->GetFieldID(clazz, "lastRead", "J");
+    auto unread_getter = env->GetFieldID(clazz, "unread", "Z");
+    jstring base_url = static_cast<jstring>(env->GetObjectField(info, url_getter));
+    jstring room = static_cast<jstring>(env->GetObjectField(info, room_getter));
+    jbyteArray pub_key = (jbyteArray)env->GetObjectField(info, pub_key_getter);
+    auto base_bytes = env->GetStringUTFChars(base_url, nullptr);
+    auto base_string = std::string {base_bytes};
+    auto room_bytes = env->GetStringUTFChars(room, nullptr);
+    auto room_string = std::string {room_bytes};
+    auto pub_key_ustring = util::ustring_from_bytes(env, pub_key);
+
+    auto deserialized = new session::config::convo::open_group(base_string, room_string,pub_key_ustring);
+    deserialized->last_read = env->GetLongField(info, last_read_getter);
+    deserialized->unread = env->GetBooleanField(info, unread_getter);
+    env->ReleaseStringUTFChars(base_url, base_bytes);
+    env->ReleaseStringUTFChars(room, room_bytes);
+    return deserialized;
+}
+
+inline session::config::convo::legacy_closed_group* deserialize_legacy_closed_group(JNIEnv *env, jobject info) {
+    auto clazz = env->FindClass("network/loki/messenger/libsession_util/util/Conversation$LegacyClosedGroup");
+    auto group_id_getter = env->GetFieldID(clazz, "groupId", "Ljava/lang/String;");
+    auto last_read_getter = env->GetFieldID(clazz, "lastRead", "J");
+    auto unread_getter = env->GetFieldID(clazz, "unread", "Z");
+    auto group_id = static_cast<jstring>(env->GetObjectField(info, group_id_getter));
+    auto group_id_bytes = env->GetStringUTFChars(group_id, nullptr);
+    auto group_id_string = std::string{group_id_bytes};
+    auto deserialized = new session::config::convo::legacy_closed_group(group_id_string);
+    deserialized->last_read = env->GetLongField(info, last_read_getter);
+    deserialized->unread = env->GetBooleanField(info, unread_getter);
+    env->ReleaseStringUTFChars(group_id, group_id_bytes);
+    return deserialized;
 }
 
 #endif //SESSION_ANDROID_CONVERSATION_H

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

@@ -2,6 +2,7 @@ package network.loki.messenger.libsession_util
 
 import network.loki.messenger.libsession_util.util.ConfigWithSeqNo
 import network.loki.messenger.libsession_util.util.Contact
+import network.loki.messenger.libsession_util.util.Conversation
 import network.loki.messenger.libsession_util.util.UserPic
 
 
@@ -56,7 +57,6 @@ class UserProfile(pointer: Long) : ConfigBase(pointer) {
         init {
             System.loadLibrary("session_util")
         }
-
         external fun newInstance(ed25519SecretKey: ByteArray): UserProfile
         external fun newInstance(ed25519SecretKey: ByteArray, initialDump: ByteArray): UserProfile
     }
@@ -72,11 +72,31 @@ class ConversationVolatileConfig(pointer: Long): ConfigBase(pointer) {
         init {
             System.loadLibrary("session_util")
         }
-
         external fun newInstance(ed25519SecretKey: ByteArray): ConversationVolatileConfig
-
         external fun newInstance(ed25519SecretKey: ByteArray, initialDump: ByteArray): ConversationVolatileConfig
-
     }
 
+    external fun getOneToOne(pubKeyHex: String): Conversation.OneToOne?
+    external fun getOrConstructOneToOne(pubKeyHex: String): Conversation.OneToOne
+    external fun set(toStore: Conversation.OneToOne)
+
+    external fun getOpenGroup(baseUrl: String, room: String, pubKeyHex: String): Conversation.OpenGroup?
+    external fun getOrConstructOpenGroup(baseUrl: String, room: String, pubKey: ByteArray): Conversation.OpenGroup
+
+    external fun getLegacyClosedGroup(groupId: String): Conversation.LegacyClosedGroup?
+    external fun getOrConstructLegacyClosedGroup(groupId: String): Conversation.LegacyClosedGroup
+
+    external fun erase(conversation: Conversation): Boolean
+
+    /**
+     * Erase all conversations that do not satisfy the `predicate`, similar to [MutableList.removeAll]
+     */
+    external fun eraseAll(predicate: (Conversation) -> Boolean): Int
+
+    external fun sizeOneToOnes(): Int
+    external fun sizeOpenGroups(): Int
+    external fun sizeLegacyClosedGroups(): Int
+
+    external fun all(): List<Conversation>
+
 }

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

@@ -1,17 +1,22 @@
 package network.loki.messenger.libsession_util.util
 
 sealed class Conversation {
+
+    abstract val lastRead: Long
+    abstract val unread: Boolean
+
     data class OneToOne(
         val sessionId: String,
-        val lastRead: Long,
-        val expiryMode: ExpiryMode,
+        override val lastRead: Long,
+        override val unread: Boolean
     ): Conversation()
 
     data class OpenGroup(
         val baseUrl: String,
-        val room: String,
+        val room: String, // lowercase
         val pubKey: ByteArray,
-        val lastRead: Long,
+        override val lastRead: Long,
+        override val unread: Boolean
     ) : Conversation() {
         override fun equals(other: Any?): Boolean {
             if (this === other) return true
@@ -38,7 +43,7 @@ sealed class Conversation {
 
     data class LegacyClosedGroup(
         val groupId: String,
-        val lastRead: Long,
-        val expiryMode: ExpiryMode
+        override val lastRead: Long,
+        override val unread: Boolean
     ): Conversation()
 }