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Telegram/SourceFiles/api/api_chat_links.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "api/api_chat_links.h"
+
+#include "api/api_text_entities.h"
+#include "apiwrap.h"
+#include "data/data_session.h"
+#include "main/main_session.h"
+
+namespace Api {
+namespace {
+
+[[nodiscard]] ChatLink FromMTP(
+		not_null<Main::Session*> session,
+		const MTPBusinessChatLink &link) {
+	const auto &data = link.data();
+	return {
+		.link = qs(data.vlink()),
+		.title = qs(data.vtitle().value_or_empty()),
+		.message = {
+			qs(data.vmessage()),
+			EntitiesFromMTP(
+				session,
+				data.ventities().value_or_empty())
+		},
+		.clicks = data.vviews().v,
+	};
+}
+
+[[nodiscard]] MTPInputBusinessChatLink ToMTP(
+		not_null<Main::Session*> session,
+		const QString &title,
+		const TextWithEntities &message) {
+	auto entities = EntitiesToMTP(
+		session,
+		message.entities,
+		ConvertOption::SkipLocal);
+	using Flag = MTPDinputBusinessChatLink::Flag;
+	const auto flags = (title.isEmpty() ? Flag() : Flag::f_title)
+		| (entities.v.isEmpty() ? Flag() : Flag::f_entities);
+	return MTP_inputBusinessChatLink(
+		MTP_flags(flags),
+		MTP_string(message.text),
+		std::move(entities),
+		MTP_string(title));
+}
+
+} // namespace
+
+ChatLinks::ChatLinks(not_null<ApiWrap*> api) : _api(api) {
+}
+
+void ChatLinks::create(
+		const QString &title,
+		const TextWithEntities &message,
+		Fn<void(Link)> done) {
+	const auto session = &_api->session();
+	_api->request(MTPaccount_CreateBusinessChatLink(
+		ToMTP(session, title, message)
+	)).done([=](const MTPBusinessChatLink &result) {
+		const auto link = FromMTP(session, result);
+		_list.push_back(link);
+		_updates.fire({ .was = QString(), .now = link });
+		if (done) done(link);
+	}).fail([=](const MTP::Error &error) {
+		const auto type = error.type();
+		if (done) done(Link());
+	}).send();
+}
+
+void ChatLinks::edit(
+		const QString &link,
+		const QString &title,
+		const TextWithEntities &message,
+		Fn<void(Link)> done) {
+	const auto session = &_api->session();
+	_api->request(MTPaccount_EditBusinessChatLink(
+		MTP_string(link),
+		ToMTP(session, title, message)
+	)).done([=](const MTPBusinessChatLink &result) {
+		const auto parsed = FromMTP(session, result);
+		if (parsed.link != link) {
+			LOG(("API Error: EditBusinessChatLink changed the link."));
+			if (done) done(Link());
+			return;
+		}
+		const auto i = ranges::find(_list, link, &Link::link);
+		if (i != end(_list)) {
+			*i = parsed;
+			_updates.fire({ .was = link, .now = parsed });
+			if (done) done(parsed);
+		} else {
+			LOG(("API Error: EditBusinessChatLink link not found."));
+			if (done) done(Link());
+		}
+	}).fail([=](const MTP::Error &error) {
+		const auto type = error.type();
+		if (done) done(Link());
+	}).send();
+}
+
+void ChatLinks::destroy(
+		const QString &link,
+		Fn<void()> done) {
+	_api->request(MTPaccount_DeleteBusinessChatLink(
+		MTP_string(link)
+	)).done([=] {
+		const auto i = ranges::find(_list, link, &Link::link);
+		if (i != end(_list)) {
+			_list.erase(i);
+			_updates.fire({ .was = link });
+			if (done) done();
+		} else {
+			LOG(("API Error: DeleteBusinessChatLink link not found."));
+			if (done) done();
+		}
+	}).fail([=](const MTP::Error &error) {
+		const auto type = error.type();
+		if (done) done();
+	}).send();
+}
+
+void ChatLinks::preload() {
+	if (_loaded || _requestId) {
+		return;
+	}
+	_requestId = _api->request(MTPaccount_GetBusinessChatLinks(
+	)).done([=](const MTPaccount_BusinessChatLinks &result) {
+		const auto &data = result.data();
+		const auto session = &_api->session();
+		const auto owner = &session->data();
+		owner->processUsers(data.vusers());
+		owner->processChats(data.vchats());
+		auto links = std::vector<Link>();
+		links.reserve(data.vlinks().v.size());
+		for (const auto &link : data.vlinks().v) {
+			links.push_back(FromMTP(session, link));
+		}
+		_list = std::move(links);
+		_loaded = true;
+		_loadedUpdates.fire({});
+	}).fail([=] {
+		_requestId = 0;
+		_loaded = true;
+		_loadedUpdates.fire({});
+	}).send();
+}
+
+const std::vector<ChatLink> &ChatLinks::list() const {
+	return _list;
+}
+
+bool ChatLinks::loaded() const {
+	return _loaded;
+}
+
+rpl::producer<> ChatLinks::loadedUpdates() const {
+	return _loadedUpdates.events();
+}
+
+rpl::producer<ChatLinks::Update> ChatLinks::updates() const {
+	return _updates.events();
+}
+
+} // namespace Api