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Telegram/SourceFiles/data/business/data_shortcut_messages.h

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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 "history/history_item.h"
+#include "base/timer.h"
+
+class History;
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Data {
+
+class Session;
+struct MessagesSlice;
+
+struct Shortcut {
+	BusinessShortcutId id = 0;
+	int count = 0;
+	QString name;
+	MsgId topMessageId = 0;
+
+	friend inline bool operator==(
+		const Shortcut &a,
+		const Shortcut &b) = default;
+};
+
+struct ShortcutIdChange {
+	BusinessShortcutId oldId = 0;
+	BusinessShortcutId newId = 0;
+};
+
+struct Shortcuts {
+	base::flat_map<BusinessShortcutId, Shortcut> list;
+
+	friend inline bool operator==(
+		const Shortcuts &a,
+		const Shortcuts &b) = default;
+};
+
+[[nodiscard]] bool IsShortcutMsgId(MsgId id);
+
+class ShortcutMessages final {
+public:
+	explicit ShortcutMessages(not_null<Session*> owner);
+	~ShortcutMessages();
+
+	[[nodiscard]] MsgId lookupId(not_null<const HistoryItem*> item) const;
+	[[nodiscard]] int count(BusinessShortcutId shortcutId) const;
+	[[nodiscard]] MsgId localMessageId(MsgId remoteId) const;
+
+	void apply(const MTPDupdateQuickReplies &update);
+	void apply(const MTPDupdateNewQuickReply &update);
+	void apply(const MTPDupdateQuickReplyMessage &update);
+	void apply(const MTPDupdateDeleteQuickReplyMessages &update);
+	void apply(const MTPDupdateDeleteQuickReply &update);
+	void apply(
+		const MTPDupdateMessageID &update,
+		not_null<HistoryItem*> local);
+
+	void appendSending(not_null<HistoryItem*> item);
+	void removeSending(not_null<HistoryItem*> item);
+
+	[[nodiscard]] rpl::producer<> updates(BusinessShortcutId shortcutId);
+	[[nodiscard]] Data::MessagesSlice list(BusinessShortcutId shortcutId);
+
+	void preloadShortcuts();
+	[[nodiscard]] const Shortcuts &shortcuts() const;
+	[[nodiscard]] bool shortcutsLoaded() const;
+	[[nodiscard]] rpl::producer<> shortcutsChanged() const;
+	[[nodiscard]] rpl::producer<ShortcutIdChange> shortcutIdChanged() const;
+	[[nodiscard]] BusinessShortcutId emplaceShortcut(QString name);
+	[[nodiscard]] Shortcut lookupShortcut(BusinessShortcutId id) const;
+	[[nodiscard]] BusinessShortcutId lookupShortcutId(
+		const QString &name) const;
+	void editShortcut(
+		BusinessShortcutId id,
+		QString name,
+		Fn<void()> done,
+		Fn<void(QString)> fail);
+	void removeShortcut(BusinessShortcutId shortcutId);
+
+private:
+	using OwnedItem = std::unique_ptr<HistoryItem, HistoryItem::Destroyer>;
+	struct List {
+		std::vector<OwnedItem> items;
+		base::flat_map<MsgId, not_null<HistoryItem*>> itemById;
+	};
+	struct Request {
+		mtpRequestId requestId = 0;
+		crl::time lastReceived = 0;
+	};
+
+	void request(BusinessShortcutId shortcutId);
+	void parse(
+		BusinessShortcutId shortcutId,
+		const MTPmessages_Messages &list);
+	HistoryItem *append(
+		BusinessShortcutId shortcutId,
+		List &list,
+		const MTPMessage &message);
+	void clearNotSending(BusinessShortcutId shortcutId);
+	void updated(
+		BusinessShortcutId shortcutId,
+		const base::flat_set<not_null<HistoryItem*>> &added,
+		const base::flat_set<not_null<HistoryItem*>> &clear);
+	void sort(List &list);
+	void remove(not_null<const HistoryItem*> item);
+	[[nodiscard]] uint64 countListHash(const List &list) const;
+	void clearOldRequests();
+	void cancelRequest(BusinessShortcutId shortcutId);
+	void updateCount(BusinessShortcutId shortcutId);
+
+	void scheduleShortcutsReload();
+	void mergeMessagesFromTo(
+		BusinessShortcutId fromId,
+		BusinessShortcutId toId);
+	void updateShortcuts(const QVector<MTPQuickReply> &list);
+	[[nodiscard]] Shortcut parseShortcut(const MTPQuickReply &reply) const;
+	[[nodiscard]] Shortcuts parseShortcuts(
+		const QVector<MTPQuickReply> &list) const;
+
+	const not_null<Main::Session*> _session;
+	const not_null<History*> _history;
+
+	base::Timer _clearTimer;
+	base::flat_map<BusinessShortcutId, List> _data;
+	base::flat_map<BusinessShortcutId, Request> _requests;
+	rpl::event_stream<BusinessShortcutId> _updates;
+
+	Shortcuts _shortcuts;
+	rpl::event_stream<> _shortcutsChanged;
+	rpl::event_stream<ShortcutIdChange> _shortcutIdChanges;
+	BusinessShortcutId _localShortcutId = 0;
+	uint64 _shortcutsHash = 0;
+	mtpRequestId _shortcutsRequestId = 0;
+	bool _shortcutsLoaded = false;
+
+	rpl::lifetime _lifetime;
+
+};
+
+[[nodiscard]] MTPInputQuickReplyShortcut ShortcutIdToMTP(
+	not_null<Main::Session*> session,
+	BusinessShortcutId id);
+
+} // namespace Data