Method sendPreparedMessage

Telegram/SourceFiles/data/data_histories.cpp:1094–1152

}

int Histories::sendPreparedMessage(
		not_null<History*> history,
		FullReplyTo replyTo,
		uint64 randomId,
		Fn<PreparedMessage(not_null<History*>, FullReplyTo)> message,
		Fn<void(const MTPUpdates&, const MTP::Response&)> done,
		Fn<void(const MTP::Error&, const MTP::Response&)> fail) {
	if (isCreatingTopic(history, replyTo.topicRootId)) {
		const auto id = ++_requestAutoincrement;
		const auto creatingId = FullMsgId(
			history->peer->id,
			replyTo.topicRootId);
		auto i = _creatingTopics.find(creatingId);
		if (i == end(_creatingTopics)) {
			sendCreateTopicRequest(history, replyTo.topicRootId);
			i = _creatingTopics.emplace(creatingId).first;
		}
		i->second.push_back({
			.randomId = randomId,
			.replyTo = replyTo.messageId,
			.message = std::move(message),
			.done = std::move(done),
			.fail = std::move(fail),
			.requestId = id,
		});
		_creatingTopicRequests.emplace(id);
		return id;
	}
	auto realReplyTo = replyTo;
	const auto topicReplyToId = [&](const auto &id) {
		return convertTopicReplyToId(history, id);
	};
	realReplyTo.messageId = topicReplyToId(replyTo.messageId);
	realReplyTo.topicRootId = topicReplyToId(replyTo.topicRootId);
	return v::match(message(history, realReplyTo), [&](const auto &request) {
		const auto type = RequestType::Send;
		return sendRequest(history, type, [=](Fn<void()> finish) {
			const auto session = &_owner->session();
			const auto api = &session->api();
			history->sendRequestId = api->request(
				base::duplicate(request)
			).done([=](
					const MTPUpdates &result,
					const MTP::Response &response) {
				api->applyUpdates(result, randomId);
				done(result, response);
				finish();
			}).fail([=](
					const MTP::Error &error,
					const MTP::Response &response) {
				fail(error, response);
				finish();
			}).afterRequest(
				history->sendRequestId
			).send();
			return history->sendRequestId;
		});
	});