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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
#include "data/data_sparse_ids.h"
#include "storage/storage_sparse_ids_list.h"
#include "storage/storage_shared_media.h"
#include "base/timer.h"
#include "base/qt/qt_compare.h"
namespace Main {
class Session;
} // namespace Main
namespace Data {
enum class LoadDirection : char;
} // namespace Data
namespace Api {
struct SearchResult {
std::vector<MsgId> messageIds;
MsgRange noSkipRange;
int fullCount = 0;
};
using SearchRequest = MTPmessages_Search;
using SearchRequestResult = MTPmessages_Messages;
std::optional<SearchRequest> PrepareSearchRequest(
not_null<PeerData*> peer,
MsgId topicRootId,
Storage::SharedMediaType type,
const QString &query,
MsgId messageId,
Data::LoadDirection direction);
SearchResult ParseSearchResult(
not_null<PeerData*> peer,
Storage::SharedMediaType type,
MsgId messageId,
Data::LoadDirection direction,
const SearchRequestResult &data);
class SearchController final {
public:
using IdsList = Storage::SparseIdsList;
struct Query {
using MediaType = Storage::SharedMediaType;
PeerId peerId = 0;
MsgId topicRootId = 0;
PeerId migratedPeerId = 0;
MediaType type = MediaType::kCount;
QString query;
// from_id, min_date, max_date
friend inline std::strong_ordering operator<=>(
const Query &a,
const Query &b) noexcept = default;
};
struct SavedState {
Query query;
IdsList peerList;
std::optional<IdsList> migratedList;
};
explicit SearchController(not_null<Main::Session*> session);
void setQuery(const Query &query);
bool hasInCache(const Query &query) const;
Query query() const {
Expects(_current != _cache.cend());
return _current->first;
}
rpl::producer<SparseIdsMergedSlice> idsSlice(
SparseIdsMergedSlice::UniversalMsgId aroundId,
int limitBefore,
int limitAfter);
SavedState saveState();
void restoreState(SavedState &&state);
private:
struct Data {
explicit Data(not_null<PeerData*> peer) : peer(peer) {
}
not_null<PeerData*> peer;
IdsList list;
base::flat_map<
SparseIdsSliceBuilder::AroundData,
rpl::lifetime> requests;
};
using SliceUpdate = Storage::SparseIdsSliceUpdate;
struct CacheEntry {
CacheEntry(not_null<Main::Session*> session, const Query &query);
Data peerData;
std::optional<Data> migratedData;
};
using Cache = base::flat_map<Query, std::unique_ptr<CacheEntry>>;
rpl::producer<SparseIdsSlice> simpleIdsSlice(
PeerId peerId,
MsgId topicRootId,
MsgId aroundId,
const Query &query,
int limitBefore,
int limitAfter);
void requestMore(
const SparseIdsSliceBuilder::AroundData &key,
const Query &query,
Data *listData);
const not_null<Main::Session*> _session;
Cache _cache;
Cache::iterator _current = _cache.end();
};
class DelayedSearchController {
public:
explicit DelayedSearchController(not_null<Main::Session*> session);
using Query = SearchController::Query;
using SavedState = SearchController::SavedState;
void setQuery(const Query &query);
void setQuery(const Query &query, crl::time delay);
void setQueryFast(const Query &query);
Query currentQuery() const {
return _controller.query();
}
rpl::producer<SparseIdsMergedSlice> idsSlice(
SparseIdsMergedSlice::UniversalMsgId aroundId,
int limitBefore,
int limitAfter) {
return _controller.idsSlice(
aroundId,
limitBefore,
limitAfter);
}
rpl::producer<QString> currentQueryValue() const {
return _currentQueryChanges.events_starting_with(
currentQuery().query);
}
SavedState saveState() {
return _controller.saveState();
}
void restoreState(SavedState &&state) {
_controller.restoreState(std::move(state));
}
private:
SearchController _controller;
Query _nextQuery;
base::Timer _timer;
rpl::event_stream<QString> _currentQueryChanges;
};
} // namespace Api
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