init

Telegram/SourceFiles/support/support_templates.h

@@ -0,0 +1,99 @@
+/*
+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 "base/binary_guard.h"
+
+#include <QtNetwork/QNetworkReply>
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Support {
+namespace details {
+
+struct TemplatesQuestion {
+	QString question;
+	QStringList originalKeys;
+	QStringList normalizedKeys;
+	QString value;
+};
+
+struct TemplatesFile {
+	QString url;
+	std::map<QString, TemplatesQuestion> questions;
+};
+
+struct TemplatesData {
+	std::map<QString, TemplatesFile> files;
+};
+
+struct TemplatesIndex {
+	using Id = std::pair<QString, QString>; // filename, normalized question
+	using Term = std::pair<QString, int>; // search term, weight
+
+	std::map<QChar, std::vector<Id>> first;
+	std::map<Id, std::vector<Term>> full;
+};
+
+} // namespace details
+
+class Templates : public base::has_weak_ptr {
+public:
+	explicit Templates(not_null<Main::Session*> session);
+
+	void reload();
+
+	using Question = details::TemplatesQuestion;
+	std::vector<Question> query(const QString &text) const;
+
+	auto errors() const {
+		return _errors.events();
+	}
+
+	struct QuestionByKey {
+		Question question;
+		QString key;
+	};
+	std::optional<QuestionByKey> matchExact(QString text) const;
+	std::optional<QuestionByKey> matchFromEnd(QString text) const;
+	int maxKeyLength() const {
+		return _maxKeyLength;
+	}
+
+	~Templates();
+
+private:
+	struct Updates;
+
+	void load();
+	void update();
+	void ensureUpdatesCreated();
+	void updateRequestFinished(QNetworkReply *reply);
+	void checkUpdateFinished();
+	void setData(details::TemplatesData &&data);
+
+	not_null<Main::Session*> _session;
+
+	details::TemplatesData _data;
+	details::TemplatesIndex _index;
+	rpl::event_stream<QStringList> _errors;
+	base::binary_guard _reading;
+	bool _reloadAfterRead = false;
+	rpl::lifetime _reloadToastSubscription;
+
+	int _maxKeyLength = 0;
+
+	std::unique_ptr<Updates> _updates;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Support