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	diff --git a/src/client/CMakeLists.txt b/src/client/CMakeLists.txt
	index 0d74183..5db284e 100644
	--- a/src/client/CMakeLists.txt
	+++ b/src/client/CMakeLists.txt
	@@ -1,50 +1,52 @@
	set(kazvclient_SRCS
	sdk-model.cpp
	client-model.cpp
	client.cpp
	clientutil.cpp
	status-utils.cpp
	actions/auth.cpp
	actions/sync.cpp
	actions/paginate.cpp
	actions/membership.cpp
	actions/states.cpp
	actions/account-data.cpp
	actions/send.cpp
	actions/ephemeral.cpp
	actions/content.cpp
	actions/encryption.cpp
	actions/profile.cpp
	device-list-tracker.cpp
	encrypted-file.cpp

	room/room-model.cpp
	room/room.cpp

	push-rules-desc.cpp
	notification-handler.cpp
	power-levels-desc.cpp

	get-content-job-v1.cpp
	+ alias.cpp
	+ encode.cpp
	)

	add_library(kazvclient ${kazvclient_SRCS})
	add_library(libkazv::kazvclient ALIAS kazvclient)
	set_target_properties(kazvclient PROPERTIES VERSION ${libkazv_VERSION_STRING} SOVERSION ${libkazv_SOVERSION})

	# https://github.com/google/googletest/issues/1841
	if (MINGW)
	target_compile_options(kazvclient PRIVATE "-Wa,-mbig-obj")
	endif()

	target_link_libraries(kazvclient PUBLIC kazvbase kazvapi kazvcrypto kazvstore Boost::regex)

	target_include_directories(kazvclient PRIVATE .)

	target_include_directories(kazvclient
	INTERFACE
	$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
	$<INSTALL_INTERFACE:include/kazv/client>
	)

	install(TARGETS kazvclient EXPORT libkazvTargets LIBRARY)
	diff --git a/src/client/actions/membership.cpp b/src/client/actions/membership.cpp
	index 3ecc229..46971d7 100644
	--- a/src/client/actions/membership.cpp
	+++ b/src/client/actions/membership.cpp
	@@ -1,293 +1,297 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2020 Tusooa Zhu <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#include <libkazv-config.hpp>

	#include <csapi/create_room.hpp>
	#include <csapi/inviting.hpp>
	#include <csapi/joining.hpp>
	#include <debug.hpp>

	#include "client-model.hpp"
	#include "clientutil.hpp"
	#include "cursorutil.hpp"
	#include "status-utils.hpp"

	#include "membership.hpp"

	namespace Kazv
	{
	static std::string visibilityToStr(CreateRoomAction::Visibility v)
	{
	using V = CreateRoomAction::Visibility;
	switch (v) {
	case V::Private:
	return "private";
	case V::Public:
	return "public";
	default:
	// should not happen
	return "";
	}
	}

	static std::string presetToStr(CreateRoomAction::Preset p)
	{
	using P = CreateRoomAction::Preset;
	switch (p) {
	case P::PrivateChat:
	return "private_chat";
	case P::PublicChat:
	return "public_chat";
	case P::TrustedPrivateChat:
	return "trusted_private_chat";
	default:
	// should not happen
	return "";
	}
	}

	ClientResult updateClient(ClientModel m, CreateRoomAction a)
	{
	auto visibility = visibilityToStr(a.visibility);
	std::optional<std::string> preset = a.preset
	? std::optional<std::string>(presetToStr(a.preset.value()))
	: std::nullopt;

	using StateEvT = Kazv::CreateRoomJob::StateEvent;
	auto initialState = intoImmer(
	immer::array<StateEvT>{},
	zug::map(
	[](Event e) {
	return StateEvT{e.type(), e.content(), e.stateKey()};
	}),
	a.initialState);

	auto job = m.job<CreateRoomJob>().make(
	visibility,
	a.roomAliasName,
	a.name,
	a.topic,
	a.invite,
	DEFVAL, // invite3pid, not supported yet
	a.roomVersion,
	a.creationContent,
	initialState,
	preset,
	a.isDirect,
	a.powerLevelContentOverride);

	m.addJob(std::move(job));

	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, CreateRoomResponse r)
	{
	if (! r.success()) {
	kzo.client.dbg() << "Create room failed" << std::endl;
	m.addTrigger(CreateRoomFailed{r.errorCode(), r.errorMessage()});
	return { std::move(m), failWithResponse(r) };
	}

	m.addTrigger(CreateRoomSuccessful{r.roomId()});
	- return { std::move(m), lager::noop };
	+ return { std::move(m), [=](auto &&) {
	+ return EffectStatus(/* succ = */ true, json{
	+ {"roomId", r.roomId()},
	+ });
	+ }};
	}

	ClientResult updateClient(ClientModel m, InviteToRoomAction a)
	{
	auto job = m.job<InviteUserJob>()
	.make(a.roomId, a.userId)
	.withData(json{
	{"roomId", a.roomId},
	{"userId", a.userId},
	});
	m.addJob(std::move(job));

	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, InviteUserResponse r)
	{
	auto roomId = r.dataStr("roomId");
	auto userId = r.dataStr("userId");

	if (! r.success()) {
	// Error
	kzo.client.warn() << "Error inviting user " << r.errorCode() << r.errorMessage() << std::endl;

	m.addTrigger(InviteUserFailed{roomId, userId, r.errorCode(), r.errorMessage()});
	return { std::move(m), failWithResponse(r) };
	}

	kzo.client.info() << "Inviting user successful" << std::endl;
	m.addTrigger(InviteUserSuccessful{roomId, userId});
	return { std::move(m), lager::noop };
	}

	ClientResult updateClient(ClientModel m, JoinRoomAction a)
	{
	/// HACK: wait for real boost::url
	auto encodedId = a.roomIdOrAlias;
	if (!encodedId.empty() && encodedId[0] == '#') {
	encodedId.replace(0, 1, "%23");
	}

	auto job = m.job<JoinRoomJob>()
	.make(encodedId, a.serverName)
	.withData(json{{"roomIdOrAlias", a.roomIdOrAlias}});

	m.addJob(std::move(job));
	return { m, lager::noop };
	}

	ClientResult processResponse(ClientModel m, JoinRoomResponse r)
	{
	auto roomIdOrAlias = r.dataStr("roomIdOrAlias");
	if (! r.success()) {
	m.addTrigger(JoinRoomFailed{
	roomIdOrAlias,
	r.errorCode(),
	r.errorMessage()
	});
	kzo.client.warn() << "Error joining room" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}

	kzo.client.info() << "Successfully joined room" << std::endl;
	m.addTrigger(JoinRoomSuccessful{roomIdOrAlias});
	return { std::move(m), lager::noop};
	}

	ClientResult updateClient(ClientModel m, JoinRoomByIdAction a)
	{
	auto job = m.job<JoinRoomByIdJob>()
	.make(a.roomId)
	.withData(json{{"roomIdOrAlias", a.roomId}});

	m.addJob(std::move(job));
	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, JoinRoomByIdResponse r)
	{
	auto roomIdOrAlias = r.dataStr("roomIdOrAlias");
	if (! r.success()) {
	m.addTrigger(JoinRoomFailed{
	roomIdOrAlias,
	r.errorCode(),
	r.errorMessage()
	});

	kzo.client.warn() << "Error joining room" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}

	kzo.client.info() << "Successfully joined room" << std::endl;
	m.addTrigger(JoinRoomSuccessful{roomIdOrAlias});
	return { std::move(m), lager::noop};
	}

	ClientResult updateClient(ClientModel m, LeaveRoomAction a)
	{
	auto job = m.job<LeaveRoomJob>()
	.make(a.roomId)
	.withData(json{{"roomId", a.roomId}});

	m.addJob(std::move(job));
	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, LeaveRoomResponse r)
	{
	auto roomId = r.dataStr("roomId");
	if (! r.success()) {
	m.addTrigger(LeaveRoomFailed{
	roomId,
	r.errorCode(),
	r.errorMessage()
	});
	kzo.client.warn() << "Error leaving room" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}

	kzo.client.info() << "Successfully left room" << std::endl;
	m.addTrigger(LeaveRoomSuccessful{roomId});
	return { std::move(m), lager::noop};
	}

	ClientResult updateClient(ClientModel m, ForgetRoomAction a)
	{
	auto job = m.job<ForgetRoomJob>()
	.make(a.roomId)
	.withData(json{{"roomId", a.roomId}});

	m.addJob(std::move(job));
	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, ForgetRoomResponse r)
	{
	auto roomId = r.dataStr("roomId");
	if (! r.success()) {
	m.addTrigger(ForgetRoomFailed{
	roomId,
	r.errorCode(),
	r.errorMessage()
	});
	kzo.client.warn() << "Error forgetting room" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}

	kzo.client.info() << "Successfully forgot room" << std::endl;
	m.addTrigger(ForgetRoomSuccessful{roomId});
	return { std::move(m), lager::noop};
	}

	ClientResult updateClient(ClientModel m, KickAction a)
	{
	m.addJob(m.job<KickJob>().make(a.roomId, a.userId, a.reason));
	return { std::move(m), lager::noop };
	}
	ClientResult processResponse(ClientModel m, KickResponse r)
	{
	if (!r.success()) {
	kzo.client.warn() << "Error kicking" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}
	return { std::move(m), lager::noop };
	}

	ClientResult updateClient(ClientModel m, BanAction a)
	{
	m.addJob(m.job<BanJob>().make(a.roomId, a.userId, a.reason));
	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, BanResponse r)
	{
	if (!r.success()) {
	kzo.client.warn() << "Error banning" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}
	return { std::move(m), lager::noop };
	}

	ClientResult updateClient(ClientModel m, UnbanAction a)
	{
	m.addJob(m.job<UnbanJob>().make(a.roomId, a.userId));
	return { std::move(m), lager::noop };
	}

	ClientResult processResponse(ClientModel m, UnbanResponse r)
	{
	if (!r.success()) {
	kzo.client.warn() << "Error unbanning" << r.errorCode() << r.errorMessage() << std::endl;
	return { std::move(m), failWithResponse(r) };
	}
	return { std::move(m), lager::noop };
	}
	};
	diff --git a/src/client/alias.cpp b/src/client/alias.cpp
	new file mode 100644
	index 0000000..e7335d1
	--- /dev/null
	+++ b/src/client/alias.cpp
	@@ -0,0 +1,42 @@
	+/*
	+ * This file is part of libkazv.
	+ * SPDX-FileCopyrightText: 2025 nannanko <nannanko@kazv.moe>
	+ * SPDX-License-Identifier: AGPL-3.0-or-later
	+ */
	+
	+#include <libkazv-config.hpp>
	+
	+#include "alias.hpp"
	+#include "status-utils.hpp"
	+#include "encode.hpp"
	+
	+#include <csapi/directory.hpp>
	+#include <context.hpp>
	+
	+namespace Kazv
	+{
	+ BaseJob getRoomIdByAliasJob(ClientModel m, std::string roomAlias)
	+ {
	+ roomAlias = percentEncode(roomAlias);
	+ return m.job<GetRoomIdByAliasJob>().make(roomAlias);
	+ }
	+
	+ EffectStatus parseGetRoomIdByAliasResponse(GetRoomIdByAliasResponse r)
	+ {
	+ if (!r.success()) {
	+ return failWithResponse(r).effectStatus();
	+ }
	+
	+ auto servers = json::array({});
	+ for (auto s : r.servers()) {
	+ servers.push_back(s);
	+ }
	+
	+ return EffectStatus{
	+ /* succ = */ true,
	+ json{
	+ {"roomId", r.roomId().value()},
	+ {"servers", servers}}
	+ };
	+ }
	+}
	diff --git a/src/client/alias.hpp b/src/client/alias.hpp
	new file mode 100644
	index 0000000..6a27386
	--- /dev/null
	+++ b/src/client/alias.hpp
	@@ -0,0 +1,21 @@
	+/*
	+ * This file is part of libkazv.
	+ * SPDX-FileCopyrightText: 2025 nannanko <nannanko@kazv.moe>
	+ * SPDX-License-Identifier: AGPL-3.0-or-later
	+ */
	+
	+#pragma once
	+#include <libkazv-config.hpp>
	+
	+#include "client-model.hpp"
	+
	+#include <basejob.hpp>
	+#include <csapi/directory.hpp>
	+
	+#include <string>
	+
	+namespace Kazv
	+{
	+ BaseJob getRoomIdByAliasJob(ClientModel m, std::string roomAlias);
	+ EffectStatus parseGetRoomIdByAliasResponse(GetRoomIdByAliasResponse r);
	+}
	diff --git a/src/client/client.cpp b/src/client/client.cpp
	index 29d5757..c894ce2 100644
	--- a/src/client/client.cpp
	+++ b/src/client/client.cpp
	@@ -1,470 +1,503 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2020-2023 tusooa <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#include <libkazv-config.hpp>

	#include <filesystem>
	+#include <algorithm>

	#include <lager/constant.hpp>

	#include "client.hpp"
	+#include "client-model.hpp"
	+#include "alias.hpp"

	namespace Kazv
	{
	Client::Client(lager::reader<SdkModel> sdk,
	ContextT ctx, std::nullopt_t)
	: m_sdk(sdk)
	, m_client(sdk.map(&SdkModel::c))
	, m_ctx(std::move(ctx))
	{
	}

	Client::Client(lager::reader<SdkModel> sdk,
	ContextWithDepsT ctx)
	: m_sdk(sdk)
	, m_client(sdk.map(&SdkModel::c))
	, m_ctx(ctx)
	, m_deps(std::move(ctx))
	{
	}

	Client::Client(InEventLoopTag,
	ContextWithDepsT ctx)
	: m_sdk(std::nullopt)
	, m_client(std::nullopt)
	, m_ctx(ctx)
	, m_deps(std::move(ctx))
	#ifdef KAZV_USE_THREAD_SAFETY_HELPER
	, KAZV_ON_EVENT_LOOP_VAR(true)
	#endif
	{
	}

	Client::Client(InEventLoopTag,
	ContextT ctx, DepsT deps)
	: m_sdk(std::nullopt)
	, m_client(std::nullopt)
	, m_ctx(std::move(ctx))
	, m_deps(std::move(deps))
	#ifdef KAZV_USE_THREAD_SAFETY_HELPER
	, KAZV_ON_EVENT_LOOP_VAR(true)
	#endif
	{
	}


	Client Client::toEventLoop() const
	{
	return Client(InEventLoopTag{}, m_ctx, m_deps.value());
	}


	Room Client::room(std::string id) const
	{
	if (m_deps.has_value()) {
	return Room(sdkCursor(), lager::make_constant(id), m_ctx, m_deps.value());
	} else {
	return Room(sdkCursor(), lager::make_constant(id), m_ctx);
	}
	}

	Room Client::roomByCursor(lager::reader<std::string> id) const
	{
	if (m_deps.has_value()) {
	return Room(sdkCursor(), id, m_ctx, m_deps.value());
	} else {
	return Room(sdkCursor(), id, m_ctx);
	}
	}

	auto Client::passwordLogin(std::string homeserver, std::string username,
	std::string password, std::string deviceName) const
	-> PromiseT
	{
	auto p1 = m_ctx.dispatch(LoginAction{
	homeserver, username, password, deviceName});
	p1
	.then([that=toEventLoop()](auto stat) {
	if (! stat.success()) {
	return;
	}
	// It is meaningless to wait for it in a Promise
	// that is never exposed to the user.
	that.startSyncing();
	});

	return p1;
	}

	auto Client::tokenLogin(std::string homeserver, std::string username,
	std::string token, std::string deviceId) const
	-> PromiseT
	{
	auto p1 = m_ctx.dispatch(TokenLoginAction{
	homeserver, username, token, deviceId});
	p1
	.then([that=toEventLoop()](auto stat) {
	if (! stat.success()) {
	return;
	}
	that.startSyncing();
	});

	return p1;
	}

	auto Client::shouldSync() const -> lager::reader<bool> {
	return this->clientCursor()[&ClientModel::shouldSync];
	}

	auto Client::logout() const
	-> PromiseT
	{
	return stopSyncing().then([ctx=m_ctx] (auto stat) {
	return ctx.dispatch(HardLogoutAction{});
	});
	}

	auto Client::autoDiscover(std::string userId) const
	-> PromiseT
	{
	return m_ctx.dispatch(GetWellknownAction{userId})
	.then([that=toEventLoop()](auto stat) {
	if (!stat.success()) {
	return that.m_ctx.createResolvedPromise(stat);
	}
	return that.m_ctx.dispatch(GetVersionsAction{stat.dataStr("homeserverUrl")})
	.then([that, stat](auto stat2) {
	if (!stat2.success()) {
	return stat2;
	} else {
	return stat;
	}
	});
	});
	}

	auto Client::createRoom(
	RoomVisibility v,
	std::optional<std::string> name,
	std::optional<std::string> alias,
	immer::array<std::string> invite,
	std::optional<bool> isDirect,
	bool allowFederate,
	std::optional<std::string> topic,
	JsonWrap powerLevelContentOverride,
	std::optional<CreateRoomPreset> preset,
	immer::array<Event> initialState
	) const
	-> PromiseT
	{
	CreateRoomAction a;
	a.visibility = v;
	a.name = name;
	a.roomAliasName = alias;
	a.invite = invite;
	a.isDirect = isDirect;
	a.topic = topic;
	a.powerLevelContentOverride = powerLevelContentOverride;
	// Synapse won't buy it if we do not provide
	// a creationContent object.
	a.creationContent = json{
	{"m.federate", allowFederate}
	};
	a.preset = preset;
	a.initialState = initialState;
	return m_ctx.dispatch(std::move(a));
	}

	auto Client::joinRoomById(std::string roomId) const -> PromiseT
	{
	return m_ctx.dispatch(JoinRoomByIdAction{roomId});
	}

	auto Client::joinRoom(std::string roomId, immer::array<std::string> serverName) const
	-> PromiseT
	{
	return m_ctx.dispatch(JoinRoomAction{roomId, serverName});
	}

	auto Client::uploadContent(immer::box<Bytes> content,
	std::string uploadId,
	std::optional<std::string> filename,
	std::optional<std::string> contentType) const
	-> PromiseT
	{
	return m_ctx.dispatch(UploadContentAction{
	FileDesc(FileContent{content.get().begin(), content.get().end()}),
	filename, contentType, uploadId});
	}

	auto Client::uploadContent(FileDesc file) const
	-> PromiseT
	{
	auto basename = file.name()
	? std::optional(std::filesystem::path(file.name().value()).filename().string())
	: std::nullopt;
	return m_ctx.dispatch(UploadContentAction{
	file,
	// use only basename to prevent path info being leaked
	basename,
	file.contentType(),
	// uploadId unused
	std::string{}});
	}

	std::string Client::mxcUriToHttpV1(std::string mxcUri) const {
	using namespace CursorOp;
	auto [serverName, mediaId] = mxcUriToMediaDesc(mxcUri);
	return (+clientCursor())
	.template job<GetContentJobV1>()
	.make(serverName, mediaId).url();
	}

	auto Client::downloadContent(std::string mxcUri, std::optional<FileDesc> downloadTo) const
	-> PromiseT
	{
	return m_ctx.dispatch(DownloadContentAction{mxcUri, downloadTo});
	}

	auto Client::downloadThumbnail(
	std::string mxcUri,
	int width,
	int height,
	std::optional<ThumbnailResizingMethod> method,
	std::optional<FileDesc> downloadTo) const
	-> PromiseT
	{
	return m_ctx.dispatch(DownloadThumbnailAction{mxcUri, width, height, method, std::nullopt, downloadTo});
	}

	auto Client::startSyncing() const -> PromiseT
	{
	KAZV_VERIFY_THREAD_ID();
	using namespace Kazv::CursorOp;

	if (+syncing()) {
	return m_ctx.createResolvedPromise(true);
	}

	auto p1 = m_ctx.createResolvedPromise(true)
	.then([that=toEventLoop()](auto) {
	// post filters, if filters are incomplete
	if ((+that.clientCursor()[&ClientModel::initialSyncFilterId]).empty()
	\|\| (+that.clientCursor()[&ClientModel::incrementalSyncFilterId]).empty()) {
	return that.m_ctx.dispatch(PostInitialFiltersAction{});
	}
	return that.m_ctx.createResolvedPromise(true);
	})
	.then([that=toEventLoop()](auto stat) {
	if (! stat.success()) {
	return that.m_ctx.createResolvedPromise(stat);
	}
	// Upload identity keys if we need to
	if (+that.clientCursor()[&ClientModel::crypto]
	&& ! +that.clientCursor()[&ClientModel::identityKeysUploaded]) {
	return that.m_ctx.dispatch(UploadIdentityKeysAction{});
	} else {
	return that.m_ctx.createResolvedPromise(true);
	}
	});

	p1
	.then([m_ctx=m_ctx](auto stat) {
	m_ctx.dispatch(SetShouldSyncAction{true});
	return stat;
	})
	.then([that=toEventLoop()](auto stat) {
	if (stat.success()) {
	that.syncForever();
	}
	});

	return p1;
	}

	auto Client::syncForever(std::optional<int> retryTime) const -> void
	{
	KAZV_VERIFY_THREAD_ID();

	// assert (m_deps);
	using namespace CursorOp;

	bool isInitialSync = ! (+clientCursor()[&ClientModel::syncToken]).has_value();

	bool shouldSync = +clientCursor()[&ClientModel::shouldSync];

	if (! shouldSync) {
	return;
	}
	//

	auto syncRes = m_ctx.dispatch(SyncAction{});

	auto uploadOneTimeKeysRes = syncRes
	.then([that=toEventLoop()](auto stat) {
	if (! stat.success()) {
	return that.m_ctx.createResolvedPromise(stat);
	}
	auto &rg = lager::get<RandomInterface &>(that.m_deps.value());
	bool hasCrypto{+that.clientCursor()[&ClientModel::crypto]};
	if (! hasCrypto) {
	return that.m_ctx.createResolvedPromise(true);
	}
	auto numKeysToGenerate = (+that.clientCursor()).numOneTimeKeysNeeded();
	return that.m_ctx.dispatch(GenerateAndUploadOneTimeKeysAction{
	numKeysToGenerate,
	rg.generateRange<RandomData>(GenerateAndUploadOneTimeKeysAction::randomSize(numKeysToGenerate))
	});
	});

	auto queryKeysRes = syncRes
	.then([that=toEventLoop(), isInitialSync](auto stat) {
	if (! stat.success()) {
	return that.m_ctx.createResolvedPromise(stat);
	}
	bool hasCrypto{+that.clientCursor()[&ClientModel::crypto]};
	return hasCrypto
	? that.m_ctx.dispatch(QueryKeysAction{isInitialSync})
	: that.m_ctx.createResolvedPromise(true);
	});

	m_ctx.promiseInterface()
	.all(std::vector<PromiseT>{uploadOneTimeKeysRes, queryKeysRes})
	.then([that=toEventLoop(), retryTime](auto stat) {
	if (stat.success()) {
	that.syncForever(); // reset retry time
	} else {
	auto firstRetryTime = +that.clientCursor()[&ClientModel::firstRetryMs];
	auto retryTimeFactor = +that.clientCursor()[&ClientModel::retryTimeFactor];
	auto maxRetryTime = +that.clientCursor()[&ClientModel::maxRetryMs];
	auto curRetryTime = retryTime ? retryTime.value() : firstRetryTime;
	if (curRetryTime > maxRetryTime) { curRetryTime = maxRetryTime; }
	auto nextRetryTime = curRetryTime * retryTimeFactor;

	kzo.client.warn() << "Sync failed, retrying in " << curRetryTime << "ms" << std::endl;
	auto &jh = getJobHandler(that.m_deps.value());
	jh.setTimeout([that=that.toEventLoop(), nextRetryTime]() { that.syncForever(nextRetryTime); },
	curRetryTime);
	}
	});
	}

	auto Client::stopSyncing() const -> PromiseT
	{
	return m_ctx.dispatch(SetShouldSyncAction{false});
	}

	lager::reader<ClientModel> Client::clientCursor() const
	{
	KAZV_VERIFY_THREAD_ID();

	if (m_client.has_value()) {
	return m_client.value();
	} else {
	assert(m_deps.has_value());
	return lager::get<SdkModelCursorKey>(m_deps.value())->map(&SdkModel::c);
	}
	}

	const lager::reader<SdkModel> &Client::sdkCursor() const
	{
	KAZV_VERIFY_THREAD_ID();

	if (m_sdk.has_value()) {
	return m_sdk.value();
	} else {
	assert(m_deps.has_value());
	return *(lager::get<SdkModelCursorKey>(m_deps.value()));
	}
	}

	auto Client::getProfile(std::string userId) const -> PromiseT
	{
	return m_ctx.dispatch(GetUserProfileAction{userId});
	}

	auto Client::setAvatarUrl(std::optional<std::string> avatarUrl) const -> PromiseT
	{
	return m_ctx.dispatch(SetAvatarUrlAction{avatarUrl});
	}

	auto Client::setDisplayName(std::optional<std::string> displayName) const -> PromiseT
	{
	return m_ctx.dispatch(SetDisplayNameAction{displayName});
	}

	auto Client::devicesOfUser(std::string userId) const -> lager::reader<immer::flex_vector<DeviceKeyInfo>>
	{
	return clientCursor()
	[&ClientModel::deviceLists]
	[&DeviceListTracker::deviceLists]
	[userId]
	[lager::lenses::or_default]
	.xform(containerMap(immer::flex_vector<DeviceKeyInfo>{}, zug::map([](const auto &pair) {
	const auto &[deviceId, info] = pair;
	(void)deviceId;
	return info;
	})));
	}

	auto Client::setDeviceTrustLevel(std::string userId, std::string deviceId, DeviceTrustLevel trustLevel) const -> PromiseT
	{
	return m_ctx.dispatch(SetDeviceTrustLevelAction{userId, deviceId, trustLevel});
	}

	auto Client::trustLevelNeededToSendKeys() const -> lager::reader<DeviceTrustLevel>
	{
	return clientCursor()[&ClientModel::trustLevelNeededToSendKeys];
	}

	auto Client::setTrustLevelNeededToSendKeys(DeviceTrustLevel trustLevel) const -> PromiseT
	{
	return m_ctx.dispatch(SetTrustLevelNeededToSendKeysAction{trustLevel});
	}

	auto Client::directRoomMap() const -> lager::reader<immer::map<std::string, std::string>>
	{
	return clientCursor().map(&ClientModel::directRoomMap);
	}

	auto Client::roomIdsUnderTag(std::string tagId) const -> lager::reader<immer::map<std::string, double>>
	{
	return clientCursor().map([tagId](const auto &c) {
	return c.roomIdsUnderTag(tagId);
	});
	}

	auto Client::roomIdsByTagId() const -> lager::reader<immer::map<std::string, immer::map<std::string, double>>>
	{
	return clientCursor().map(&ClientModel::roomIdsByTagId);
	}

	auto Client::accountData() const -> lager::reader<immer::map<std::string, Event>>
	{
	return clientCursor()[&ClientModel::accountData];
	}

	auto Client::setAccountData(Event accountDataEvent) const -> PromiseT
	{
	return m_ctx.dispatch(SetAccountDataAction{accountDataEvent});
	}

	NotificationHandler Client::notificationHandler() const
	{
	return NotificationHandler(clientCursor());
	}

	auto Client::getVersions(std::string homeserver) const -> PromiseT
	{
	return m_ctx.dispatch(GetVersionsAction{homeserver});
	}

	auto Client::supportVersions() const -> lager::reader<immer::array<std::string>>
	{
	return clientCursor()[&ClientModel::versions];
	}
	+
	+ auto Client::addDirectRoom(std::string userId, std::string roomId) const -> PromiseT
	+ {
	+ auto content = this->accountData().get()["m.direct"].content().get();
	+
	+ if (content.contains(userId)) {
	+ auto& rooms = content[userId];
	+ if (rooms.is_array()) {
	+ if (std::find(rooms.begin(), rooms.end(), roomId) != rooms.end()) {
	+ // The roomId is already in the m.direct, do nothing
	+ return m_ctx.createResolvedPromise(true);
	+ }
	+ } else {
	+ rooms = json::array({});
	+ }
	+ } else {
	+ content.emplace(userId, json::array({}));
	+ }
	+
	+ content[userId].push_back(roomId);
	+ return Client::setAccountData(json{
	+ {"type", "m.direct"},
	+ {"content", std::move(content)}
	+ });
	+ }
	+
	+ auto Client::getRoomIdByAliasJob(std::string roomAlias) const -> BaseJob
	+ {
	+ return Kazv::getRoomIdByAliasJob(clientCursor().get(), roomAlias);
	+ }
	}
	diff --git a/src/client/client.hpp b/src/client/client.hpp
	index da01576..150a803 100644
	--- a/src/client/client.hpp
	+++ b/src/client/client.hpp
	@@ -1,601 +1,620 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2020-2023 tusooa <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#pragma once
	#include <libkazv-config.hpp>

	#include <lager/reader.hpp>
	#include <immer/box.hpp>
	#include <immer/map.hpp>
	#include <immer/flex_vector.hpp>
	#include <immer/flex_vector_transient.hpp>

	#include "sdk-model.hpp"
	#include "client/client-model.hpp"
	#include "client/actions/content.hpp"
	#include "sdk-model-cursor-tag.hpp"
	#include "get-content-job-v1.hpp"

	#include "room/room.hpp"
	#include "notification-handler.hpp"

	namespace Kazv
	{
	/**
	* Represent a Matrix client.
	*
	* If the Client is constructed from a cursor originated from
	* a root whose event loop is on thread A, then we say that
	* the Client belongs to thread A. If the Client is not constructed
	* from a cursor, then we say that the Client belongs to the thread
	* where the event loop of the context runs.
	*
	* All methods in this class that take a cursor only take a cursor
	* on the same thread as the Client. All methods in this class that
	* return a cursor will return a cursor on the same thread as the Client.
	*
	* All methods in this class must be run on the same thread as the
	* the Client. If the Client is not constructed from a cursor,
	* copy-constructing another Client from this is safe from any thread.
	* If the Client is constructed from a cursor, copy-constructing another
	* Client is safe only from the same thread as this Client.
	*
	* ## Error handling
	*
	* A lot of functions in Client and Room are asynchronous actions.
	* These actions return the result via a Promise.
	* If an API request has failed, the Promise p will satisfy the following:
	* - `!p.success()`
	* - `p.dataStr("error")` will contain the error message from the response.
	* - `p.dataStr("errorCode")` will contain the matrix error code, if available,
	* or the HTTP status code otherwise.
	*
	* What information is resolved if the API request has succeeded is defined
	* by individual functions.
	*/
	class Client
	{
	public:
	using ActionT = ClientAction;

	using DepsT = lager::deps<JobInterface &, EventInterface &, SdkModelCursorKey, RandomInterface &
	#ifdef KAZV_USE_THREAD_SAFETY_HELPER
	, EventLoopThreadIdKeeper &
	#endif

	>;
	using ContextT = Context<ActionT>;
	using ContextWithDepsT = Context<ActionT, DepsT>;

	using PromiseT = SingleTypePromise<DefaultRetType>;

	struct InEventLoopTag {};
	/**
	* Constructor.
	*
	* Construct the client. Without Deps support.
	*
	* @warning You should not use this directly. Use
	* Sdk::client() instead.
	*/
	Client(lager::reader<SdkModel> sdk,
	ContextT ctx, std::nullopt_t);

	/**
	* Constructor.
	*
	* Construct the client, with Deps support.
	*
	* This enables startSyncing() to work properly.
	*
	* @warning You should not use this directly. Use
	* Sdk::client() instead.
	*/
	Client(lager::reader<SdkModel> sdk,
	ContextWithDepsT ctx);

	/**
	* Constructor.
	*
	* Construct the client, with Deps support.
	*
	* The constructed Client belongs to the thread of event loop.
	*
	* @warning You should not use this directly. Use
	* Sdk::client() instead.
	*/
	Client(InEventLoopTag,
	ContextWithDepsT ctx);

	/**
	* Constructor.
	*
	* Construct the client, with Deps support.
	*
	* The constructed Client belongs to the thread of event loop.
	*
	* @warning You should not use this directly. Use
	* Sdk::client() instead.
	*/
	Client(InEventLoopTag, ContextT ctx, DepsT deps);


	/**
	* Create a Client that is not constructed from a cursor.
	*
	* The returned Client belongs to the thread of event loop.
	*
	* This function is thread-safe if every thread calls it
	* using different objects.
	*
	* @return A Client not constructed from a cursor.
	*/
	Client toEventLoop() const;

	/* lager::reader<immer::map<std::string, Room>> */
	inline auto rooms() const {
	return clientCursor()
	[&ClientModel::roomList]
	[&RoomListModel::rooms];
	}

	/* lager::reader<RangeT<std::string>> */
	inline auto roomIds() const {
	return rooms().xform(
	zug::map([](auto m) {
	return intoImmer(
	immer::flex_vector<std::string>{},
	zug::map([](auto val) { return val.first; }),
	m);
	}));
	}

	auto roomIdsUnderTag(std::string tagId) const -> lager::reader<immer::map<std::string, double>>;

	/**
	* Get the room ids under all tags.
	*
	* @return A lager::reader containing the map from tag id to a map from room id to order.
	* Rooms without a tag will be under the tag id of the empty string.
	*/
	auto roomIdsByTagId() const -> lager::reader<immer::map<std::string, immer::map<std::string, double>>>;

	KAZV_WRAP_ATTR(ClientModel, clientCursor(), serverUrl)
	KAZV_WRAP_ATTR(ClientModel, clientCursor(), loggedIn)
	KAZV_WRAP_ATTR(ClientModel, clientCursor(), userId)
	KAZV_WRAP_ATTR(ClientModel, clientCursor(), token)
	KAZV_WRAP_ATTR(ClientModel, clientCursor(), deviceId)
	KAZV_WRAP_ATTR(ClientModel, clientCursor(), toDevice)

	/**
	* Get the room with @c id .
	*
	* This is equivalent to `roomByCursor(lager::make_constant(id))`.
	*
	* @param id The room id.
	* @return A Room representing the room with `id`.
	*/
	Room room(std::string id) const;

	/**
	* Get the room with `id`.
	*
	* The Room returned will change as the content in `id` changes.
	*
	* For example, you can have the Room that is always the first
	* alphabetically in all rooms by:
	*
	* \code{.cpp}
	* auto someProcessing =
	* zug::map([=](auto ids) {
	* std::sort(ids.begin(), ids.end(), [=](auto id1, auto id2) {
	* using namespace Kazv::CursorOp;
	* return (+client.room(id1).name()) < (+client.room(id2).name());
	* });
	* return ids;
	* });
	* auto room =
	* client.roomByCursor(
	* client.roomIds().xform(someProcessing)[0]);
	* \endcode
	*
	* @param id A lager::reader<std::string> containing the room id.
	* @return A Room representing the room with `id`.
	*/
	Room roomByCursor(lager::reader<std::string> id) const;

	/**
	* Login using the password.
	*
	* This will create a new session on the homeserver.
	*
	* If the returned Promise resolves successfully, this will
	* call `startSyncing()`.
	*
	* @param homeserver The base url of the homeserver. E.g. `https://tusooa.xyz`.
	* @param username The username. This can be the full user id or
	* just the local part. E.g. `tusooa`, `@tusooa:tusooa.xyz`.
	* @param password The password.
	* @param deviceName Optionally, a custom device name. If empty, `libkazv`
	* will be used.
	* @return A Promise that resolves when logging in successfully, or
	* when there is an error.
	*/
	PromiseT passwordLogin(std::string homeserver, std::string username,
	std::string password, std::string deviceName) const;

	/**
	* Login using `token` and `deviceId`.
	*
	* This will not make a request. Library users should make sure
	* the information is correct and the token and the device id are valid.
	*
	* If the returned Promise resolves successfully, this will
	* call `startSyncing()`.
	*
	* @param homeserver The base url of the homeserver. E.g. `https://tusooa.xyz`.
	* @param username The full user id. E.g. `@tusooa:tusooa.xyz`.
	* @param token The access token.
	* @param deviceId The device id that is paired with `token`.
	* @return A Promise that resolves when the account information is filled in.
	*/
	PromiseT tokenLogin(std::string homeserver, std::string username,
	std::string token, std::string deviceId) const;

	/**
	* Get the `shouldSync` field of current ClientModel.
	*
	* @return A lager::reader of bool of the `shouldSync` field of the ClientModel
	*/
	auto shouldSync() const -> lager::reader<bool>;

	/**
	* Stop syncing and then logout current session.
	*
	* Meanwhile, clear the current token and set loggedIn to false.
	*
	* @return A promise that resolves when the syncing is stopped.
	*/
	PromiseT logout() const;

	/**
	* Automatically discover the homeserver for `userId`.
	*
	* If the operation succeeds, `r.dataStr("homeserverUrl")` will contain
	* the url suitable to pass to `tokenLogin()` and `passwordLogin()`.
	*
	* If there is no well-known file (i.e. server responds with 404),
	* `r.dataStr("homeserverUrl")` will contain the domain part of the user
	* id (`https://example.org` for `@foo:example.org`).
	*
	* @param userId The full user id. E.g. `@foo:example.org`.
	* @return A Promise that resolves when the auto-discovery finishes.
	*/
	PromiseT autoDiscover(std::string userId) const;

	/**
	* Create a room.
	*
	* @param v The visibility of the room.
	* @param name The name of the room.
	* @param alias The alias of the room.
	* @param invite User ids to invite to this room.
	* @param isDirect Whether this room is a direct chat.
	* @param allowFederate Whether to allow users from other homeservers
	* to join this room.
	* @param topic The topic of the room.
	* @param powerLevelContentOverride The content of the m.room.power_levels
	* state event to override the default.
	* @param preset The preset to create the room with.
	* @return A Promise that resolves when the room is created,
	* or when there is an error.
	*/
	PromiseT createRoom(
	RoomVisibility v,
	std::optional<std::string> name = {},
	std::optional<std::string> alias = {},
	immer::array<std::string> invite = {},
	std::optional<bool> isDirect = {},
	bool allowFederate = true,
	std::optional<std::string> topic = {},
	JsonWrap powerLevelContentOverride = json::object(),
	std::optional<CreateRoomPreset> preset = std::nullopt,
	immer::array<Event> initialState = immer::array<Event>()
	) const;

	/**
	* Join a room by its id.
	*
	* @param roomId The id of the room to join.
	* @return A Promise that resolves when the room is joined,
	* or when there is an error.
	*/
	PromiseT joinRoomById(std::string roomId) const;

	/**
	* Join a room by its id or alias.
	*
	* @param roomId The id or alias of the room to join.
	* @param serverName A list of servers to use when joining the room.
	* This corresponds to the `via` parameter in a matrix.to url.
	* @return A Promise that resolves when the room is joined,
	* or when there is an error.
	*/
	PromiseT joinRoom(std::string roomId, immer::array<std::string> serverName) const;

	/**
	* Upload content to the content repository.
	*
	* @param content The content to upload.
	* @param uploadId
	* @param filename The name of the file.
	* @param contentType The content type of the file.
	* @return A Promise that resolves when the upload is successful,
	* or when there is an error. If it successfully resolves to `r`,
	* `r.dataStr("mxcUri")` will be the MXC URI of the uploaded
	* content.
	*/
	PromiseT uploadContent(immer::box<Bytes> content,
	std::string uploadId,
	std::optional<std::string> filename = std::nullopt,
	std::optional<std::string> contentType = std::nullopt) const;

	/**
	* Upload content to the content repository.
	*
	* @param file The file to upload.
	* @return A Promise that resolves when the upload is successful,
	* or when there is an error. If it successfully resolves to `r`,
	* `r.dataStr("mxcUri")` will be the MXC URI of the uploaded
	* content.
	*/
	PromiseT uploadContent(FileDesc file) const;


	/**
	* Convert a MXC URI to an HTTP(s) URI.
	*
	* The converted URI will be using the homeserver of
	* this Client.
	*
	* @param mxcUri The MXC URI to convert.
	* @return The HTTP(s) URI that has the content indicated
	* by `mxcUri`.
	*/
	inline std::string mxcUriToHttp(std::string mxcUri) const {
	using namespace CursorOp;
	auto [serverName, mediaId] = mxcUriToMediaDesc(mxcUri);
	return (+clientCursor())
	.template job<GetContentJob>()
	.make(serverName, mediaId).url();
	}

	/**
	* Convert a MXC URI to an HTTP(s) URI that needs Authorization.
	*
	* The converted URI will be using the homeserver of
	* this Client.
	*
	* @param mxcUri The MXC URI to convert.
	* @return The HTTP(s) URI that has the content indicated
	* by `mxcUri`.
	*/
	std::string mxcUriToHttpV1(std::string mxcUri) const;

	/**
	* Download content from the content repository
	*
	* After the returned Promise resolves successfully,
	* if @c downloadTo is provided, the content will be available
	* in that file; if it is not provided, `r.dataStr("content")`
	* will contain the content of the downloaded file.
	*
	* @param mxcUri The MXC URI of the content.
	* @param downloadTo The file to write the content to. Must not be
	* an in-memory file.
	* @return A Promise that is resolved after the content
	* is downloaded, or when there is an error.
	*/
	PromiseT downloadContent(std::string mxcUri,
	std::optional<FileDesc> downloadTo = std::nullopt) const;

	/**
	* Download a thumbnail from the content repository
	*
	* After the returned Promise resolves successfully,
	* if @c downloadTo is provided, the content will be available
	* in that file; if it is not provided, `r.dataStr("content")`
	* will contain the content of the downloaded file.
	*
	* @param mxcUri The MXC URI of the content.
	* @param width,height The dimension wanted for the thumbnail
	* @param method The method to generate the thumbnail. Either `Crop`
	* or `Scale`.
	* @param downloadTo The file to write the content to. Must not be
	* an in-memory file.
	* @return A Promise that is resolved after the thumbnail
	* is downloaded, or when there is an error.
	*/
	PromiseT downloadThumbnail(std::string mxcUri,
	int width,
	int height,
	std::optional<ThumbnailResizingMethod> method = std::nullopt,
	std::optional<FileDesc> downloadTo = std::nullopt) const;

	/**
	* Fetch the profile of a user.
	*
	* @param userId The id of the user to fetch.
	* @return A Promise that resolves when the fetch is completed.
	* If successful, `r.dataStr("avatarUrl")` will contain the
	* avatar url of that user, and `r.dataStr("displayName")` will
	* contain the display name of that user.
	*/
	PromiseT getProfile(std::string userId) const;

	/**
	* Change the avatar url of the current user.
	*
	* @param avatarUrl The url of the new avatar. Should be an MXC URI.
	* If it is std::nullopt, remove the user avatar.
	* @return A Promise that resolves when the request is completed.
	*/
	PromiseT setAvatarUrl(std::optional<std::string> avatarUrl) const;

	/**
	* Change the display name of the current user.
	*
	* @param displayName The new display name. If it is std::nullopt,
	* remove the user avatar.
	* @return A Promise that resolves when the request is completed.
	*/
	PromiseT setDisplayName(std::optional<std::string> displayName) const;

	// lager::reader<bool>
	inline auto syncing() const {
	return clientCursor()[&ClientModel::syncing];
	}

	/**
	* Start syncing if the Client is not syncing.
	*
	* Syncing will continue indefinitely, if the preparation of
	* the sync (posting filters and uploading identity keys,
	* if needed) is successful, or until stopSyncing() is called.
	*
	* @return A Promise that resolves when the Client is syncing
	* (more exactly, when syncing() contains true), or when there
	* is an error in the preparation of the sync.
	*/
	PromiseT startSyncing() const;

	/**
	* Stop the indefinite syncing.
	*
	* After this, no more syncing actions will be dispatched.
	*
	* @return A Promise that resolves when syncing is stopped.
	*/
	PromiseT stopSyncing() const;

	/**
	* Get the info of all devices of user `userId` that supports encryption.
	*
	* @param userId The id of the user to get the devices of.
	*
	* @return a lager::reader of a RangeT of DeviceKeyInfo representing the devices of that user.
	*/
	auto devicesOfUser(std::string userId) const -> lager::reader<immer::flex_vector<DeviceKeyInfo>>;

	/**
	* Set the trust level of a device.
	*
	* @param userId The id of the user to whom the device belongs.
	* @param deviceId The id of the device.
	*
	* @return a Promise that resolves when the setting is changed.
	*/
	PromiseT setDeviceTrustLevel(std::string userId, std::string deviceId, DeviceTrustLevel trustLevel) const;

	/**
	* Get the trust level needed to send keys to a device.
	*
	* @return a lager::reader of the trust level threshold.
	*/
	auto trustLevelNeededToSendKeys() const -> lager::reader<DeviceTrustLevel>;

	/**
	* Set the trust level needed to send keys to a device.
	*
	* @param trustLevel The trust level threshold.
	*
	* @return a Promise that resolves when the setting is changed.
	*/
	PromiseT setTrustLevelNeededToSendKeys(DeviceTrustLevel trustLevel) const;

	/**
	* Get the map from direct messaging room ids to user ids.
	*
	* @return a lager::reader of such mapping.
	*/
	auto directRoomMap() const -> lager::reader<immer::map<std::string, std::string>>;

	/**
	* Get the account data that is not associated with any room.
	*
	* @return A lager::reader of a map from the type to the account data event.
	*/
	auto accountData() const -> lager::reader<immer::map<std::string, Event>>;

	/**
	* Set the account data that is not associated with any room.
	*
	* @return A Promise that resolves when the account data
	* has been set, or when there is an error.
	*/
	PromiseT setAccountData(Event accountDataEvent) const;

	/**
	* Get a notification handler that works on this Client.
	*
	* @return A notification handler that works on this Client.
	*/
	NotificationHandler notificationHandler() const;

	/**
	* Serialize the model to a Boost.Serialization archive.
	*
	* @param ar A Boost.Serialization output archive.
	*
	* This function can be used to save the model. For loading,
	* you should use the makeSdk function. For example:
	*
	* ```c++
	* client.serializeTo(outputAr);
	*
	* SdkModel m;
	* inputAr >> m;
	* auto newSdk = makeSdk(m, ...);
	* ```
	*/
	template<class Archive>
	void serializeTo(Archive &ar) const {
	ar << sdkCursor().get();
	}

	/**
	* Get all supported versions.
	*
	* @param homeserver The base url of the homeserver. E.g. `https://tusooa.xyz`.
	* @return A Promise that resolves when the versions has been set,
	* or when there is an error.
	*/
	PromiseT getVersions(std::string homeserver) const;

	/**
	* Get all supported versions.
	*
	* @return A lager::reader of a array contains all supported versions.
	*
	* See https://spec.matrix.org/v1.14/#specification-versions
	*/
	auto supportVersions() const -> lager::reader<immer::array<std::string>>;

	+ /**
	+ * Mark a room as a direct chat by send the m.direct account data.
	+ *
	+ * @param userId The user id that direct to.
	+ * @param roomId The direct chat room id.
	+ * @return A Promise that resolves when the account data
	+ * has been set, or when there is an error.
	+ */
	+ PromiseT addDirectRoom(std::string userId, std::string roomId) const;
	+
	+ /**
	+ * Get a GetRoomIdByAliasJob.
	+ * Use Kazv::parseGetRoomIdByAliasResponse to parse its response.
	+ *
	+ * @param roomAlias The room alias.
	+ * @return A GetRoomIdByAliasJob.
	+ */
	+ BaseJob getRoomIdByAliasJob(std::string roomAlias) const;
	+
	private:
	void syncForever(std::optional<int> retryTime = std::nullopt) const;

	const lager::reader<SdkModel> &sdkCursor() const;
	lager::reader<ClientModel> clientCursor() const;

	std::optional<lager::reader<SdkModel>> m_sdk;
	std::optional<lager::reader<ClientModel>> m_client;
	ContextT m_ctx;
	std::optional<DepsT> m_deps;
	KAZV_DECLARE_THREAD_ID();
	KAZV_DECLARE_EVENT_LOOP_THREAD_ID_KEEPER(m_deps.has_value() ? &lager::get<EventLoopThreadIdKeeper &>(m_deps.value()) : 0);
	};

	}
	diff --git a/src/client/encode.cpp b/src/client/encode.cpp
	new file mode 100644
	index 0000000..4379dea
	--- /dev/null
	+++ b/src/client/encode.cpp
	@@ -0,0 +1,40 @@
	+/*
	+ * This file is part of libkazv.
	+ * SPDX-FileCopyrightText: 2025 nannanko <nannanko@kazv.moe>
	+ * SPDX-License-Identifier: AGPL-3.0-or-later
	+ */
	+
	+#include <libkazv-config.hpp>
	+
	+#include "encode.hpp"
	+
	+#include <array>
	+#include <algorithm>
	+#include <sstream>
	+#include <iostream>
	+
	+namespace Kazv
	+{
	+ // https://www.rfc-editor.org/rfc/rfc3986#section-2.2
	+ static const std::array<char, 18> reservedChars{
	+ '!', '#', '$', '&', '\'', '(', ')', '*', '+',
	+ ',', '/', ':', ';', '=', '?', '@', '[', ']'};
	+ static auto isReservedChar = [](char c) -> bool {
	+ return std::find(reservedChars.begin(), reservedChars.end(), c)
	+ != reservedChars.end();
	+ };
	+
	+ std::string percentEncode(std::string url)
	+ {
	+ std::ostringstream result;
	+ result << std::hex;
	+ for (char c : url) {
	+ if (isReservedChar(c)) {
	+ result << '%' << static_cast<unsigned int>(c);
	+ } else {
	+ result << c;
	+ }
	+ }
	+ return result.str();
	+ }
	+}
	diff --git a/src/client/encode.hpp b/src/client/encode.hpp
	new file mode 100644
	index 0000000..c77d4ef
	--- /dev/null
	+++ b/src/client/encode.hpp
	@@ -0,0 +1,15 @@
	+/*
	+ * This file is part of libkazv.
	+ * SPDX-FileCopyrightText: 2025 nannanko <nannanko@kazv.moe>
	+ * SPDX-License-Identifier: AGPL-3.0-or-later
	+ */
	+
	+#pragma once
	+#include <libkazv-config.hpp>
	+
	+#include <string>
	+
	+namespace Kazv
	+{
	+ std::string percentEncode(std::string url);
	+}
	diff --git a/src/client/status-utils.cpp b/src/client/status-utils.cpp
	index c89729f..07d38b7 100644
	--- a/src/client/status-utils.cpp
	+++ b/src/client/status-utils.cpp
	@@ -1,36 +1,43 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2020-2024 tusooa <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#include <libkazv-config.hpp>
	#include "status-utils.hpp"

	namespace Kazv
	{
	+ namespace detail {
	+ EffectStatus ReturnEffectStatusT::effectStatus() const
	+ {
	+ return st;
	+ }
	+ }
	+
	detail::ReturnEffectStatusT failWithResponse(const BaseJob::Response &r)
	{
	auto code = r.errorCode();
	auto msg = r.errorMessage();
	auto d = json{
	{"error", msg},
	{"errorCode", code},
	};
	return detail::ReturnEffectStatusT{
	EffectStatus(/* succ = */ false, JsonWrap(d))
	};
	}

	detail::ReturnEffectStatusT failEffect(std::string errorCode, std::string errorMsg)
	{
	auto d = json{
	{"error", errorMsg},
	{"errorCode", errorCode},
	};

	return detail::ReturnEffectStatusT{
	EffectStatus(/* succ = */ false, JsonWrap(d))
	};
	}
	}
	diff --git a/src/client/status-utils.hpp b/src/client/status-utils.hpp
	index d40ef5f..7f290a8 100644
	--- a/src/client/status-utils.hpp
	+++ b/src/client/status-utils.hpp
	@@ -1,51 +1,53 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2020-2024 tusooa <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#pragma once
	#include <libkazv-config.hpp>
	#include <context.hpp>
	#include <basejob.hpp>

	namespace Kazv
	{
	namespace detail
	{
	struct SimpleFailT
	{
	template<class Context>
	EffectStatus operator()(Context &&) const {
	return EffectStatus(/* succ = */ false);
	};
	};

	struct ReturnEffectStatusT
	{
	EffectStatus st;

	template<class Context>
	EffectStatus operator()(Context &&) const
	{
	return st;
	};
	+
	+ EffectStatus effectStatus() const;
	};
	}

	/**
	* A effect that returns a failed EffectStatus upon invocation.
	*/
	constexpr auto simpleFail = detail::SimpleFailT{};

	/**
	* A effect that returns a failed EffectStatus upon invocation.
	*/
	detail::ReturnEffectStatusT failWithResponse(const BaseJob::Response &r);

	/**
	* An effect that returns a failed EffectStatus with the given
	* error code and message.
	*/
	detail::ReturnEffectStatusT failEffect(std::string errorCode, std::string errorMsg);
	}
	diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt
	index d24a830..31ca7b8 100644
	--- a/src/tests/CMakeLists.txt
	+++ b/src/tests/CMakeLists.txt
	@@ -1,123 +1,125 @@

	include(CTest)

	set(KAZVTEST_RESPATH ${CMAKE_CURRENT_SOURCE_DIR}/resources)
	configure_file(kazvtest-respath.hpp.in kazvtest-respath.hpp)

	function(libkazv_add_tests)
	set(options "")
	set(oneValueArgs "")
	set(multiValueArgs EXTRA_LINK_LIBRARIES EXTRA_INCLUDE_DIRECTORIES)
	cmake_parse_arguments(PARSE_ARGV 0 libkazv_add_tests "${options}" "${oneValueArgs}" "${multiValueArgs}")
	foreach(test_source ${libkazv_add_tests_UNPARSED_ARGUMENTS})
	string(REGEX REPLACE "\\.cpp$" "" test_executable "${test_source}")
	string(REGEX REPLACE "/\|\\\\" "--" test_executable "${test_executable}")
	message(STATUS "Test ${test_executable} added")
	add_executable("${test_executable}" "${test_source}")
	target_link_libraries("${test_executable}"
	PRIVATE Catch2::Catch2WithMain
	Threads::Threads
	${libkazv_add_tests_EXTRA_LINK_LIBRARIES}
	)

	target_include_directories(
	"${test_executable}"
	PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
	${CMAKE_CURRENT_SOURCE_DIR}
	${CMAKE_CURRENT_SOURCE_DIR}/..
	${libkazv_add_tests_EXTRA_INCLUDE_DIRECTORIES}
	)

	target_compile_definitions("${test_executable}" PRIVATE CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)

	add_test(NAME "${test_executable}" COMMAND "${test_executable}" "--allow-running-no-tests" "~[needs-internet]")
	endforeach()
	endfunction()

	libkazv_add_tests(
	event-test.cpp
	cursorutiltest.cpp
	base/serialization-test.cpp
	base/types-test.cpp
	base/immer-utils-test.cpp
	base/json-utils-test.cpp
	EXTRA_LINK_LIBRARIES kazvbase
	)

	add_library(client-test-lib SHARED client/client-test-util.cpp)
	target_link_libraries(client-test-lib PUBLIC kazvjob kazvclient)
	libkazv_add_tests(
	client/discovery-test.cpp
	client/sync-test.cpp
	client/content-test.cpp
	client/paginate-test.cpp
	client/util-test.cpp
	client/serialization-test.cpp
	client/encrypted-file-test.cpp
	client/sdk-test.cpp
	client/thread-safety-test.cpp
	client/room-test.cpp
	client/random-generator-test.cpp
	client/profile-test.cpp
	client/kick-test.cpp
	client/ban-test.cpp
	client/join-test.cpp
	client/keys-test.cpp
	client/device-ops-test.cpp
	client/send-test.cpp
	client/encryption-test.cpp
	client/redact-test.cpp
	client/tagging-test.cpp
	client/account-data-test.cpp
	client/room/room-actions-test.cpp
	client/room/local-echo-test.cpp
	client/room/event-relationships-test.cpp
	client/room/member-membership-test.cpp
	client/push-rules-desc-test.cpp
	client/notification-handler-test.cpp
	client/validator-test.cpp
	client/power-levels-desc-test.cpp
	client/client-test.cpp
	client/create-room-test.cpp
	client/device-list-tracker-test.cpp
	client/device-list-tracker-benchmark-test.cpp
	client/room/read-receipt-test.cpp
	client/room/undecrypted-events-test.cpp
	client/encryption-benchmark-test.cpp
	client/logout-test.cpp
	client/room/pinned-events-test.cpp
	client/get-versions-test.cpp
	+ client/alias-test.cpp
	+ client/encode-test.cpp
	EXTRA_LINK_LIBRARIES kazvclient kazveventemitter kazvjob client-test-lib kazvtestfixtures
	EXTRA_INCLUDE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR}/client
	)

	libkazv_add_tests(
	basejobtest.cpp
	kazvjobtest.cpp
	file-desc-test.cpp
	EXTRA_LINK_LIBRARIES kazvbase kazvjob
	)

	libkazv_add_tests(
	promise-test.cpp
	EXTRA_LINK_LIBRARIES kazvbase kazvjob kazvstore
	)

	libkazv_add_tests(
	event-emitter-test.cpp
	EXTRA_LINK_LIBRARIES kazvbase kazveventemitter
	)

	libkazv_add_tests(
	crypto-test.cpp
	crypto/inbound-group-session-test.cpp
	crypto/outbound-group-session-test.cpp
	crypto/session-test.cpp
	crypto/key-export-test.cpp
	EXTRA_LINK_LIBRARIES kazvcrypto
	)

	libkazv_add_tests(
	store-test.cpp
	EXTRA_LINK_LIBRARIES kazvstore kazvjob
	)
	diff --git a/src/tests/client/account-data-test.cpp b/src/tests/client/account-data-test.cpp
	index 4b8f862..3fef73f 100644
	--- a/src/tests/client/account-data-test.cpp
	+++ b/src/tests/client/account-data-test.cpp
	@@ -1,396 +1,637 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2023 tusooa <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#include <libkazv-config.hpp>

	#include <catch2/catch_test_macros.hpp>

	#include <lager/event_loop/boost_asio.hpp>

	#include <boost/asio.hpp>
	#include <cprjobhandler.hpp>
	#include <asio-promise-handler.hpp>
	#include <lagerstoreeventemitter.hpp>
	#include <cursorutil.hpp>
	#include <sdk-model.hpp>
	#include <client/client.hpp>

	#include "client-test-util.hpp"
	#include "action-mock-utils.hpp"
	#include "factory.hpp"

	using namespace Kazv::Factory;

	Event accountDataEvent = R"({
	"type": "moe.kazv.mxc.kazv.some-event",
	"content": {
	"test": 1
	}
	})"_json;

	TEST_CASE("Send set account data by room job", "[client][account-data]")
	{
	ClientModel loggedInModel = makeClient({});

	auto [resModel, dontCareEffect] = ClientModel::update(
	loggedInModel, SetAccountDataPerRoomAction{"!room:example.com", accountDataEvent});

	assert1Job(resModel);
	for1stJob(resModel, [] (const auto &job) {
	REQUIRE(job.jobId() == "SetAccountDataPerRoom");
	REQUIRE(job.url().find("/rooms/!room:example.com") != std::string::npos);
	REQUIRE(job.url().find("/account_data/moe.kazv.mxc.kazv.some-event") != std::string::npos);
	auto jsonBody = json::parse(std::get<BytesBody>(job.requestBody()));
	REQUIRE(jsonBody == accountDataEvent.content().get());
	});
	}

	TEST_CASE("Process account data by room response", "[client][account-data]")
	{
	boost::asio::io_context io;
	AsioPromiseHandler ph{io.get_executor()};

	auto store = createTestClientStore(ph);

	WHEN("Success response")
	{
	auto succResponse = makeResponse("SetAccountDataPerRoom");
	store.dispatch(ProcessResponseAction{succResponse})
	.then([] (auto stat) {
	REQUIRE(stat.success());
	});
	}

	WHEN("Failed response")
	{
	auto failResponse = makeResponse("SetAccountDataPerRoom", withResponseJsonBody(R"({
	"errcode": "M_FORBIDDEN",
	"error": "Cannot add account data for other users."
	})"_json));
	failResponse.statusCode = 403;
	store.dispatch(ProcessResponseAction{failResponse})
	.then([] (auto stat) {
	REQUIRE(!stat.success());
	REQUIRE(stat.dataStr("error") == "Cannot add account data for other users.");
	REQUIRE(stat.dataStr("errorCode") == "M_FORBIDDEN");
	});
	}

	io.run();
	}

	TEST_CASE("Room::setAccountData()", "[client][account-data]")
	{
	boost::asio::io_context io;
	SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};

	ClientModel m = makeClient(
	withRoom(makeRoom(
	withRoomId("!room:example.com")
	))
	);
	auto jh = Kazv::CprJobHandler{io.get_executor()};
	auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});

	auto sdk = Kazv::makeSdk(
	SdkModel{m},
	jh,
	ee,
	Kazv::AsioPromiseHandler{io.get_executor()},
	zug::identity
	);

	auto ctx = sdk.context();
	auto dispatcher = getMockDispatcher(
	ph,
	ctx,
	returnEmpty<SetAccountDataPerRoomAction>()
	);
	auto mockContext = getMockContext(ph, dispatcher);

	auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	auto r = client.room("!room:example.com");
	r.setAccountData(accountDataEvent)
	.then([&io](auto) {
	io.stop();
	});

	io.run();

	REQUIRE(dispatcher.template calledTimes<SetAccountDataPerRoomAction>() == 1);
	auto a = dispatcher.template of<SetAccountDataPerRoomAction>()[0];
	REQUIRE(a.roomId == "!room:example.com");
	REQUIRE(a.accountDataEvent == accountDataEvent);
	}

	Event tagEvent = R"({
	"type": "m.tag",
	"content": {
	"tags": {
	"m.favourite": 0
	}
	}
	})"_json;

	TEST_CASE("Room::addOrSetTag()", "[client][account-data][tagging]")
	{
	boost::asio::io_context io;
	SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};

	ClientModel m = makeClient(
	withRoom(makeRoom(
	withRoomId("!room:example.com")
	\| withRoomAccountData({tagEvent})
	))
	);

	auto jh = Kazv::CprJobHandler{io.get_executor()};
	auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});

	auto sdk = Kazv::makeSdk(
	SdkModel{m},
	jh,
	ee,
	Kazv::AsioPromiseHandler{io.get_executor()},
	zug::identity
	);

	auto ctx = sdk.context();
	auto expectedEvent = Event();
	auto dispatcher = getMockDispatcher(
	ph,
	ctx,
	returnEmpty<SetAccountDataPerRoomAction>()
	);
	auto mockContext = getMockContext(ph, dispatcher);

	auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	auto r = client.room("!room:example.com");

	SECTION("adding new tag")
	{
	auto expectedJson = tagEvent.raw().get();
	expectedJson["content"]["tags"]["u.xxx"] = {{"order", 0.2}};
	expectedEvent = expectedJson;

	r.addOrSetTag("u.xxx", 0.2)
	.then([&io](auto) {
	io.stop();
	});
	}

	SECTION("adding new tag, no order")
	{
	auto expectedJson = tagEvent.raw().get();
	expectedJson["content"]["tags"]["u.xxx"] = json::object();
	expectedEvent = expectedJson;

	r.addOrSetTag("u.xxx")
	.then([&io](auto) {
	io.stop();
	});
	}

	SECTION("updating existing tag")
	{
	auto expectedJson = tagEvent.raw().get();
	expectedJson["content"]["tags"]["m.favourite"] = {{"order", 0.5}};
	expectedEvent = expectedJson;

	r.addOrSetTag("m.favourite", 0.5)
	.then([&io](auto) {
	io.stop();
	});
	}

	SECTION("updating existing tag, no order")
	{
	auto expectedJson = tagEvent.raw().get();
	expectedJson["content"]["tags"]["m.favourite"] = json::object();
	expectedEvent = expectedJson;

	r.addOrSetTag("m.favourite")
	.then([&io](auto) {
	io.stop();
	});
	}

	io.run();

	REQUIRE(dispatcher.template calledTimes<SetAccountDataPerRoomAction>() == 1);
	auto a = dispatcher.template of<SetAccountDataPerRoomAction>()[0];
	REQUIRE(a.roomId == "!room:example.com");
	REQUIRE(a.accountDataEvent == expectedEvent);
	}

	TEST_CASE("Room::removeTag()", "[client][account-data][tagging]")
	{
	boost::asio::io_context io;
	SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};

	ClientModel m = makeClient(
	withRoom(makeRoom(
	withRoomId("!room:example.com")
	\| withRoomAccountData({tagEvent})
	))
	);
	auto jh = Kazv::CprJobHandler{io.get_executor()};
	auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});

	auto sdk = Kazv::makeSdk(
	SdkModel{m},
	jh,
	ee,
	Kazv::AsioPromiseHandler{io.get_executor()},
	zug::identity
	);

	auto ctx = sdk.context();
	auto expectedEvent = Event();

	auto dispatcher = getMockDispatcher(
	ph,
	ctx,
	returnEmpty<SetAccountDataPerRoomAction>()
	);

	auto mockContext = getMockContext(ph, dispatcher);
	auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	auto r = client.room("!room:example.com");

	SECTION("removing existing tag")
	{
	auto expectedJson = tagEvent.raw().get();
	expectedJson["content"]["tags"] = json::object();
	expectedEvent = expectedJson;

	r.removeTag("m.favourite")
	.then([&io](auto) {
	io.stop();
	});
	}

	SECTION("removing non-existent tag")
	{
	expectedEvent = tagEvent;

	r.removeTag("u.xxx")
	.then([&io](auto) {
	io.stop();
	});
	}

	io.run();

	REQUIRE(dispatcher.template calledTimes<SetAccountDataPerRoomAction>() == 1);
	auto a = dispatcher.template of<SetAccountDataPerRoomAction>()[0];
	REQUIRE(a.roomId == "!room:example.com");
	REQUIRE(a.accountDataEvent == expectedEvent);
	}

	TEST_CASE("Send set account data job", "[client][account-data]")
	{
	ClientModel loggedInModel = makeClient({});

	auto [resModel, dontCareEffect] = ClientModel::update(
	loggedInModel, SetAccountDataAction{accountDataEvent});

	assert1Job(resModel);
	for1stJob(resModel, [loggedInModel] (const auto &job) {
	REQUIRE(job.jobId() == "SetAccountData");
	REQUIRE(job.url().find("/user/" + loggedInModel.userId) != std::string::npos);
	REQUIRE(job.url().find("/account_data/moe.kazv.mxc.kazv.some-event") != std::string::npos);
	auto jsonBody = json::parse(std::get<BytesBody>(job.requestBody()));
	REQUIRE(jsonBody == accountDataEvent.content().get());
	});
	}

	TEST_CASE("Process account data response", "[client][account-data]")
	{
	boost::asio::io_context io;
	AsioPromiseHandler ph{io.get_executor()};

	auto store = createTestClientStore(ph);

	WHEN("Success response")
	{
	auto succResponse = makeResponse("SetAccountData");
	store.dispatch(ProcessResponseAction{succResponse})
	.then([] (auto stat) {
	REQUIRE(stat.success());
	});
	}

	WHEN("Failed response")
	{
	auto failResponse = makeResponse("SetAccountData", withResponseJsonBody(R"({
	"errcode": "M_FORBIDDEN",
	"error": "Cannot add account data for other users."
	})"_json));
	failResponse.statusCode = 403;
	store.dispatch(ProcessResponseAction{failResponse})
	.then([] (auto stat) {
	REQUIRE(!stat.success());
	REQUIRE(stat.dataStr("error") == "Cannot add account data for other users.");
	REQUIRE(stat.dataStr("errorCode") == "M_FORBIDDEN");
	});
	}

	io.run();
	}

	TEST_CASE("Client::accountData()", "[client][account-data]")
	{
	boost::asio::io_context io;
	AsioPromiseHandler ph{io.get_executor()};

	ClientModel m = makeClient(
	withAccountData({accountDataEvent})
	);

	auto store = createTestClientStoreFrom(m, ph);
	auto client = Client(store.reader().map([](auto c) { return SdkModel{c}; }), store, std::nullopt);

	REQUIRE(client.accountData().make().get() == m.accountData);
	}

	TEST_CASE("Client::setAccountData()", "[client][account-data]")
	{
	boost::asio::io_context io;
	SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};

	ClientModel m = makeClient({});
	auto jh = Kazv::CprJobHandler{io.get_executor()};
	auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});

	auto sdk = Kazv::makeSdk(
	SdkModel{m},
	jh,
	ee,
	Kazv::AsioPromiseHandler{io.get_executor()},
	zug::identity
	);

	auto ctx = sdk.context();
	auto dispatcher = getMockDispatcher(
	ph,
	ctx,
	returnEmpty<SetAccountDataAction>()
	);
	auto mockContext = getMockContext(ph, dispatcher);

	auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	client.setAccountData(accountDataEvent)
	.then([&io](auto) {
	io.stop();
	});

	io.run();

	REQUIRE(dispatcher.template calledTimes<SetAccountDataAction>() == 1);
	auto a = dispatcher.template of<SetAccountDataAction>()[0];
	REQUIRE(a.accountDataEvent == accountDataEvent);
	}
	+
	+TEST_CASE("Client::addDirectRoom()", "[client][account-data]")
	+{
	+ boost::asio::io_context io;
	+ SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};
	+
	+ ClientModel m = makeClient({});
	+ auto jh = Kazv::CprJobHandler{io.get_executor()};
	+ auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});
	+
	+ auto sdk = Kazv::makeSdk(
	+ SdkModel{m},
	+ jh,
	+ ee,
	+ Kazv::AsioPromiseHandler{io.get_executor()},
	+ zug::identity
	+ );
	+
	+ auto ctx = sdk.context();
	+ auto dispatcher = getMockDispatcher(
	+ ph,
	+ ctx,
	+ returnEmpty<SetAccountDataAction>()
	+ );
	+ auto mockContext = getMockContext(ph, dispatcher);
	+
	+ auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	+ client.addDirectRoom("@mew:example.org", "!somewhere:example.org")
	+ .then([&io](auto) {
	+ io.stop();
	+ });
	+
	+ io.run();
	+
	+ REQUIRE(dispatcher.template calledTimes<SetAccountDataAction>() == 1);
	+ auto a = dispatcher.template of<SetAccountDataAction>()[0];
	+ Event mDirectEvent = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": ["!somewhere:example.org"]
	+ }
	+ })"_json;
	+ REQUIRE(a.accountDataEvent == mDirectEvent);
	+}
	+
	+TEST_CASE("Client::addDirectRoom(), when roomId is already in m.direct", "[client][account-data]")
	+{
	+ boost::asio::io_context io;
	+ SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};
	+
	+ ClientModel m = makeClient({});
	+ Event mDirectEvent = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": ["!somewhere:example.org"]
	+ }
	+ })"_json;
	+ m.accountData = m.accountData.set("m.direct", mDirectEvent);
	+ auto jh = Kazv::CprJobHandler{io.get_executor()};
	+ auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});
	+
	+ auto sdk = Kazv::makeSdk(
	+ SdkModel{m},
	+ jh,
	+ ee,
	+ Kazv::AsioPromiseHandler{io.get_executor()},
	+ zug::identity
	+ );
	+
	+ auto ctx = sdk.context();
	+ auto dispatcher = getMockDispatcher(
	+ ph,
	+ ctx,
	+ returnEmpty<SetAccountDataAction>()
	+ );
	+ auto mockContext = getMockContext(ph, dispatcher);
	+
	+ auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	+ client.addDirectRoom("@mew:example.org", "!somewhere:example.org")
	+ .then([&io](auto) {
	+ io.stop();
	+ });
	+
	+ io.run();
	+
	+ REQUIRE(dispatcher.template calledTimes<SetAccountDataAction>() == 0);
	+}
	+
	+TEST_CASE("Client::addDirectRoom(), when m.direct content is ill-format", "[client][account-data]")
	+{
	+ boost::asio::io_context io;
	+ SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};
	+
	+ ClientModel m = makeClient({});
	+ Event mDirectEvent = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": "!somewrongwhere:example.org"
	+ }
	+ })"_json;
	+ m.accountData = m.accountData.set("m.direct", mDirectEvent);
	+ auto jh = Kazv::CprJobHandler{io.get_executor()};
	+ auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});
	+
	+ auto sdk = Kazv::makeSdk(
	+ SdkModel{m},
	+ jh,
	+ ee,
	+ Kazv::AsioPromiseHandler{io.get_executor()},
	+ zug::identity
	+ );
	+
	+ auto ctx = sdk.context();
	+ auto dispatcher = getMockDispatcher(
	+ ph,
	+ ctx,
	+ returnEmpty<SetAccountDataAction>()
	+ );
	+ auto mockContext = getMockContext(ph, dispatcher);
	+
	+ auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	+ client.addDirectRoom("@mew:example.org", "!somewhere:example.org")
	+ .then([&io](auto) {
	+ io.stop();
	+ });
	+
	+ io.run();
	+
	+ REQUIRE(dispatcher.template calledTimes<SetAccountDataAction>() == 1);
	+ auto a = dispatcher.template of<SetAccountDataAction>()[0];
	+ Event mDirectEventNew = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": ["!somewhere:example.org"]
	+ }
	+ })"_json;
	+ REQUIRE(a.accountDataEvent == mDirectEventNew);
	+}
	+
	+TEST_CASE("Client::addDirectRoom(), when m.direct content contains other user's rooms", "[client][account-data]")
	+{
	+ boost::asio::io_context io;
	+ SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};
	+
	+ ClientModel m = makeClient({});
	+ Event mDirectEvent = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew2:example.org": ["!somewhere2:example.org", "!somewhere3:example.org"]
	+ }
	+ })"_json;
	+ m.accountData = m.accountData.set("m.direct", mDirectEvent);
	+ auto jh = Kazv::CprJobHandler{io.get_executor()};
	+ auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});
	+
	+ auto sdk = Kazv::makeSdk(
	+ SdkModel{m},
	+ jh,
	+ ee,
	+ Kazv::AsioPromiseHandler{io.get_executor()},
	+ zug::identity
	+ );
	+
	+ auto ctx = sdk.context();
	+ auto dispatcher = getMockDispatcher(
	+ ph,
	+ ctx,
	+ returnEmpty<SetAccountDataAction>()
	+ );
	+ auto mockContext = getMockContext(ph, dispatcher);
	+
	+ auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	+ client.addDirectRoom("@mew:example.org", "!somewhere:example.org")
	+ .then([&io](auto) {
	+ io.stop();
	+ });
	+
	+ io.run();
	+
	+ REQUIRE(dispatcher.template calledTimes<SetAccountDataAction>() == 1);
	+ auto a = dispatcher.template of<SetAccountDataAction>()[0];
	+ Event mDirectEventNew = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": ["!somewhere:example.org"],
	+ "@mew2:example.org": ["!somewhere2:example.org", "!somewhere3:example.org"]
	+ }
	+ })"_json;
	+ REQUIRE(a.accountDataEvent == mDirectEventNew);
	+}
	+
	+TEST_CASE("Client::addDirectRoom(), when m.direct content contains the user's other rooms", "[client][account-data]")
	+{
	+ boost::asio::io_context io;
	+ SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};
	+
	+ ClientModel m = makeClient({});
	+ Event mDirectEvent = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": ["!somewhere4:example.org"]
	+ }
	+ })"_json;
	+ m.accountData = m.accountData.set("m.direct", mDirectEvent);
	+ auto jh = Kazv::CprJobHandler{io.get_executor()};
	+ auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});
	+
	+ auto sdk = Kazv::makeSdk(
	+ SdkModel{m},
	+ jh,
	+ ee,
	+ Kazv::AsioPromiseHandler{io.get_executor()},
	+ zug::identity
	+ );
	+
	+ auto ctx = sdk.context();
	+ auto dispatcher = getMockDispatcher(
	+ ph,
	+ ctx,
	+ returnEmpty<SetAccountDataAction>()
	+ );
	+ auto mockContext = getMockContext(ph, dispatcher);
	+
	+ auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());
	+ client.addDirectRoom("@mew:example.org", "!somewhere:example.org")
	+ .then([&io](auto) {
	+ io.stop();
	+ });
	+
	+ io.run();
	+
	+ REQUIRE(dispatcher.template calledTimes<SetAccountDataAction>() == 1);
	+ auto a = dispatcher.template of<SetAccountDataAction>()[0];
	+ Event mDirectEventNew = R"({
	+ "type": "m.direct",
	+ "content": {
	+ "@mew:example.org": ["!somewhere4:example.org", "!somewhere:example.org"]
	+ }
	+ })"_json;
	+ REQUIRE(a.accountDataEvent == mDirectEventNew);
	+}
	diff --git a/src/tests/client/alias-test.cpp b/src/tests/client/alias-test.cpp
	new file mode 100644
	index 0000000..e5da7e9
	--- /dev/null
	+++ b/src/tests/client/alias-test.cpp
	@@ -0,0 +1,78 @@
	+/*
	+ * This file is part of libkazv.
	+ * SPDX-FileCopyrightText: 2025 nannanko <nannanko@kazv.moe>
	+ * SPDX-License-Identifier: AGPL-3.0-or-later
	+ */
	+
	+#include <libkazv-config.hpp>
	+
	+#include <factory.hpp>
	+#include <alias.hpp>
	+#include <encode.hpp>
	+
	+#include <catch2/catch_test_macros.hpp>
	+#include <nlohmann/json.hpp>
	+
	+#include <string>
	+
	+using namespace std::string_literals;
	+using namespace Kazv::Factory;
	+using namespace Kazv;
	+using namespace nlohmann;
	+
	+TEST_CASE("Get room id by room alias", "[client][room-alias]")
	+{
	+ const auto roomAlias = "#room:example.org"s;
	+ const auto client = makeClient();
	+ const auto job = getRoomIdByAliasJob(client, roomAlias);
	+ REQUIRE(job.jobId() == "GetRoomIdByAlias");
	+ REQUIRE(job.url().find(percentEncode(roomAlias))
	+ != std::string::npos);
	+}
	+
	+TEST_CASE("Parse GetRoomIdByAlias response", "[client][room-alias]")
	+{
	+ WHEN("Success response")
	+ {
	+ const auto roomId = "!room:example.org"s;
	+ const auto servers = json::array({"server1.org", "server2.org"});
	+ const auto succResponse = makeResponse("GetRoomIdByAlias",
	+ withResponseJsonBody(json{
	+ {"room_id", roomId},
	+ {"servers", servers}}));
	+ const auto stat = parseGetRoomIdByAliasResponse(succResponse);
	+ REQUIRE(stat.success());
	+ REQUIRE(stat.dataStr("roomId") == roomId);
	+ REQUIRE(stat.dataJson("servers") == servers);
	+ }
	+
	+ WHEN("Failed 400 response")
	+ {
	+ const auto errorMsg = "Room alias invalid"s;
	+ const auto errorCode = "M_INVALID_PARAM"s;
	+ const auto failResponse = makeResponse("GetRoomIdByAlias",
	+ withResponseJsonBody(json{
	+ {"errorcode", errorCode},
	+ {"error", errorMsg}})
	+ \| withResponseStatusCode(400));
	+ const auto stat = parseGetRoomIdByAliasResponse(failResponse);
	+ REQUIRE(!stat.success());
	+ REQUIRE(stat.dataStr("error") == errorMsg);
	+ REQUIRE(stat.dataStr("errorCode") == "400");
	+ }
	+
	+ WHEN("Failed 404 response")
	+ {
	+ const auto errorMsg = "Room alias #room:example.org not found."s;
	+ const auto errorCode = "M_NOT_FOUND"s;
	+ const auto failResponse = makeResponse("GetRoomIdByAlias",
	+ withResponseJsonBody(json{
	+ {"errorcode", errorCode},
	+ {"error", errorMsg}})
	+ \| withResponseStatusCode(404));
	+ const auto stat = parseGetRoomIdByAliasResponse(failResponse);
	+ REQUIRE(!stat.success());
	+ REQUIRE(stat.dataStr("error") == errorMsg);
	+ REQUIRE(stat.dataStr("errorCode") == "404");
	+ }
	+}
	diff --git a/src/tests/client/create-room-test.cpp b/src/tests/client/create-room-test.cpp
	index 0ad0fcb..5503823 100644
	--- a/src/tests/client/create-room-test.cpp
	+++ b/src/tests/client/create-room-test.cpp
	@@ -1,198 +1,200 @@
	/*
	* This file is part of libkazv.
	* SPDX-FileCopyrightText: 2021-2023 tusooa <tusooa@kazv.moe>
	* SPDX-License-Identifier: AGPL-3.0-or-later
	*/

	#include <libkazv-config.hpp>

	#include <lager/event_loop/boost_asio.hpp>

	#include <catch2/catch_test_macros.hpp>
	#include <boost/asio.hpp>
	#include <asio-promise-handler.hpp>
	#include <cprjobhandler.hpp>
	#include <lagerstoreeventemitter.hpp>
	#include <cursorutil.hpp>
	#include <sdk-model.hpp>
	#include <client/client.hpp>
	#include <client/actions/membership.hpp>
	#include "client-test-util.hpp"
	#include "action-mock-utils.hpp"
	#include "factory.hpp"

	using namespace Kazv;
	using namespace Kazv::Factory;

	TEST_CASE("Client::createRoom()", "[client][create-room]")
	{
	ClientModel m = makeClient();

	boost::asio::io_context io;
	SingleTypePromiseInterface<EffectStatus> ph{AsioPromiseHandler{io.get_executor()}};
	auto jh = Kazv::CprJobHandler{io.get_executor()};
	auto ee = Kazv::LagerStoreEventEmitter(lager::with_boost_asio_event_loop{io.get_executor()});

	auto sdk = Kazv::makeSdk(
	SdkModel{m},
	jh,
	ee,
	Kazv::AsioPromiseHandler{io.get_executor()},
	zug::identity
	);

	auto ctx = sdk.context();

	auto dispatcher = getMockDispatcher(
	ph,
	ctx,
	returnEmpty<CreateRoomAction>()
	);

	auto mockContext = getMockContext(ph, dispatcher);

	auto client = Client(Client::InEventLoopTag{}, mockContext, sdk.context());

	auto initialState = immer::array<Event>{
	makeEvent(withEventType("moe.kazv.mxc.some-type") \| withStateKey(""))
	};

	client.createRoom(
	/* visibility = */ RoomVisibility::Private,
	/* name = */ "some name",
	/* alias = */ "alias",
	/* invite = */ immer::array<std::string>{"@invited:example.com"},
	/* isDirect = */ true,
	/* allowFederate = */ true,
	/* topic = */ "some topic",
	/* powerLevelContentOverride = */ json::object({{"messages", 1}}),
	/* preset = */ CreateRoomPreset::TrustedPrivateChat,
	/* initialState = */ initialState
	).then([&io](auto) {
	io.stop();
	});

	io.run();

	REQUIRE(dispatcher.template calledTimes<CreateRoomAction>() == 1);
	auto action = dispatcher.template of<CreateRoomAction>()[0];
	REQUIRE(action.visibility == RoomVisibility::Private);
	REQUIRE(action.name == "some name");
	REQUIRE(action.roomAliasName == "alias");
	REQUIRE(action.invite == immer::array<std::string>{"@invited:example.com"});
	REQUIRE(action.isDirect == true);
	REQUIRE(action.creationContent.get() == json::object({
	{"m.federate", true},
	}));
	REQUIRE(action.topic == "some topic");
	REQUIRE(action.preset == CreateRoomPreset::TrustedPrivateChat);
	REQUIRE(action.initialState == initialState);
	}

	TEST_CASE("CreateRoomAction", "[client][create-room]")
	{
	ClientModel m = makeClient();
	auto action = CreateRoomAction{};
	action.visibility = RoomVisibility::Private;
	action.name = "some name";
	action.roomAliasName = "alias";
	action.invite = immer::array<std::string>{"@invited:example.com"};
	action.isDirect = true;
	action.powerLevelContentOverride = json{{"messages", 1}};
	action.creationContent = json::object({
	{"m.federate", true},
	});
	action.topic = "some topic";
	action.preset = CreateRoomPreset::TrustedPrivateChat;
	action.initialState = immer::array<Event>{
	json{
	{"type", "moe.kazv.mxc.some-type"},
	{"state_key", "@mew:example.com"},
	{"content", {
	{"foo", "bar"},
	}},
	},
	};

	SECTION("base") {
	auto [next, _] = updateClient(m, action);
	assert1Job(next);
	for1stJob(next, [action](const BaseJob &job) {
	auto body = json::parse(std::get<BytesBody>(job.requestBody()));
	REQUIRE(body["creation_content"] == json{
	{"m.federate", true},
	});
	REQUIRE(body["initial_state"] == json::array({action.initialState[0].originalJson().get()}));
	REQUIRE(body["invite"] == json{"@invited:example.com"});
	REQUIRE(!body.contains("invite_3pid"));
	REQUIRE(body["is_direct"] == true);
	REQUIRE(body["name"] == "some name");
	REQUIRE(body["power_level_content_override"] == json{
	{"messages", 1},
	});
	REQUIRE(body["preset"] == "trusted_private_chat");
	REQUIRE(body["room_alias_name"] == "alias");
	REQUIRE(!body.contains("room_version"));
	REQUIRE(body["topic"] == "some topic");
	REQUIRE(body["visibility"] == "private");
	});
	}

	WHEN("visibility: public") {
	action.visibility = RoomVisibility::Public;
	auto [next, _] = updateClient(m, action);
	for1stJob(next, [action](const BaseJob &job) {
	auto body = json::parse(std::get<BytesBody>(job.requestBody()));
	REQUIRE(body["visibility"] == "public");
	});
	}

	WHEN("preset: public_chat") {
	action.preset = CreateRoomPreset::PublicChat;
	auto [next, _] = updateClient(m, action);
	for1stJob(next, [action](const BaseJob &job) {
	auto body = json::parse(std::get<BytesBody>(job.requestBody()));
	REQUIRE(body["preset"] == "public_chat");
	});
	}

	WHEN("preset: private_chat") {
	action.preset = CreateRoomPreset::PrivateChat;
	auto [next, _] = updateClient(m, action);
	for1stJob(next, [action](const BaseJob &job) {
	auto body = json::parse(std::get<BytesBody>(job.requestBody()));
	REQUIRE(body["preset"] == "private_chat");
	});
	}
	}

	TEST_CASE("Process create room response", "[client][create-room]")
	{
	boost::asio::io_context io;
	AsioPromiseHandler ph{io.get_executor()};

	auto store = createTestClientStore(ph);

	WHEN("Success response")
	{
	- auto succResponse = makeResponse("CreateRoom", withResponseJsonBody(json{{"room_id", "!some-room:example.com"}}));
	+ const auto roomId = "!some-room:example.com";
	+ auto succResponse = makeResponse("CreateRoom", withResponseJsonBody(json{{"room_id", roomId}}));
	store.dispatch(ProcessResponseAction{succResponse})
	- .then([&](auto stat) {
	+ .then([&, roomId](auto stat) {
	REQUIRE(stat.success());
	+ REQUIRE(stat.dataStr("roomId") == roomId);
	});
	}
	WHEN("Failed response")
	{
	auto failResponse = makeResponse("CreateRoom", withResponseStatusCode(400) \| withResponseJsonBody(json{
	{"error", "An unknown error occurred"},
	{"errcode", "M_UNKNOWN"},
	}));
	store.dispatch(ProcessResponseAction{failResponse})
	.then([](auto stat) {
	REQUIRE(!stat.success());
	REQUIRE(stat.dataStr("error") == "An unknown error occurred");
	REQUIRE(stat.dataStr("errorCode") == "400");
	});
	}
	io.run();
	}
	diff --git a/src/tests/client/encode-test.cpp b/src/tests/client/encode-test.cpp
	new file mode 100644
	index 0000000..a7170ba
	--- /dev/null
	+++ b/src/tests/client/encode-test.cpp
	@@ -0,0 +1,30 @@
	+/*
	+ * This file is part of libkazv.
	+ * SPDX-FileCopyrightText: 2025 nannanko <nannanko@kazv.moe>
	+ * SPDX-License-Identifier: AGPL-3.0-or-later
	+ */
	+
	+#include <libkazv-config.hpp>
	+
	+#include <encode.hpp>
	+
	+#include <catch2/catch_test_macros.hpp>
	+
	+#include <vector>
	+#include <string>
	+
	+using namespace std;
	+using namespace std::string_literals;
	+using namespace Kazv;
	+
	+TEST_CASE("String percent-encoding", "[client][percent-encoding]")
	+{
	+ const std::vector<std::pair<string, string>> strs = {
	+ {"!#$&'()*+,/:;=?@[]"s, "%21%23%24%26%27%28%29%2a%2b%2c%2f%3a%3b%3d%3f%40%5b%5d"s},
	+ {"#room:example.org"s, "%23room%3aexample.org"s},
	+ {"Unreserved_characters_string"s, "Unreserved_characters_string"s}
	+ };
	+ for (auto s : strs) {
	+ REQUIRE(percentEncode(s.first) == s.second);
	+ }
	+}

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