60 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			60 lines
		
	
	
	
		
			1.3 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "api/api_messages_search.h"
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class History;
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class PeerData;
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namespace Api {
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// Search in both of history and migrated history, if it exists.
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class MessagesSearchMerged final {
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public:
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	struct Request {
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		QString query;
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		PeerData *from = nullptr;
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	};
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	struct RequestCompare {
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		bool operator()(const Request &a, const Request &b) const;
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	};
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	using CachedRequests = std::set<Request, RequestCompare>;
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	MessagesSearchMerged(not_null<History*> history);
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	void clear();
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	void search(const Request &search);
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	void searchMore();
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	[[nodiscard]] const FoundMessages &messages() const;
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	[[nodiscard]] rpl::producer<> newFounds() const;
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	[[nodiscard]] rpl::producer<> nextFounds() const;
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private:
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	void addFound(const FoundMessages &data);
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	MessagesSearch _apiSearch;
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	std::optional<MessagesSearch> _migratedSearch;
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	FoundMessages _migratedFirstFound;
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	FoundMessages _concatedFound;
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	bool _waitingForTotal = false;
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	bool _isFull = false;
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	rpl::event_stream<> _newFounds;
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	rpl::event_stream<> _nextFounds;
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	rpl::lifetime _lifetime;
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};
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} // namespace Api
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