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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
*/
#pragma once
namespace Main {
class Session;
} // namespace Main
namespace Api {
namespace details {
struct SingleMessageSearchKey {
QString domainOrId;
MsgId postId = 0;
[[nodiscard]] bool empty() const {
return domainOrId.isEmpty() || !postId;
}
[[nodiscard]] explicit operator bool() const {
return !empty();
}
[[nodiscard]] bool operator<(const SingleMessageSearchKey &other) const {
return std::tie(domainOrId, postId)
< std::tie(other.domainOrId, other.postId);
}
[[nodiscard]] bool operator==(
const SingleMessageSearchKey &other) const {
return std::tie(domainOrId, postId)
== std::tie(other.domainOrId, other.postId);
}
};
} // namespace details
class SingleMessageSearch {
public:
explicit SingleMessageSearch(not_null<Main::Session*> session);
~SingleMessageSearch();
void clear();
// If 'ready' callback is empty, the result must not be 'nullopt'.
[[nodiscard]] std::optional<HistoryItem*> lookup(
const QString &query,
Fn<void()> ready = nullptr);
private:
using Key = details::SingleMessageSearchKey;
[[nodiscard]] std::optional<HistoryItem*> performLookup(
Fn<void()> ready);
[[nodiscard]] std::optional<HistoryItem*> performLookupById(
ChannelId channelId,
Fn<void()> ready);
[[nodiscard]] std::optional<HistoryItem*> performLookupByUsername(
const QString &username,
Fn<void()> ready);
[[nodiscard]] std::optional<HistoryItem*> performLookupByChannel(
not_null<ChannelData*> channel,
Fn<void()> ready);
const not_null<Main::Session*> _session;
std::map<Key, FullMsgId> _cache;
mtpRequestId _requestId = 0;
Key _requestKey;
};
[[nodiscard]] QString ConvertPeerSearchQuery(const QString &query);
} // namespace Api
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