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Telegram/SourceFiles/data/data_message_reaction_id.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 "base/qt/qt_compare.h"
+
+namespace Data {
+
+struct ReactionId {
+	std::variant<QString, DocumentId> data;
+
+	[[nodiscard]] static QChar PaidTag() {
+		return '*';
+	}
+	[[nodiscard]] static ReactionId Paid() {
+		return { QString(PaidTag()) };
+	}
+
+	[[nodiscard]] bool empty() const {
+		const auto emoji = std::get_if<QString>(&data);
+		return emoji && emoji->isEmpty();
+	}
+	[[nodiscard]] bool paid() const {
+		const auto emoji = std::get_if<QString>(&data);
+		return emoji
+			&& emoji->size() == 1
+			&& emoji->at(0) == PaidTag();
+	}
+	[[nodiscard]] QString emoji() const {
+		const auto emoji = std::get_if<QString>(&data);
+		return (emoji && (emoji->size() != 1 || emoji->at(0) != PaidTag()))
+			? *emoji
+			: QString();
+	}
+	[[nodiscard]] DocumentId custom() const {
+		const auto custom = std::get_if<DocumentId>(&data);
+		return custom ? *custom : DocumentId();
+	}
+
+	explicit operator bool() const {
+		return !empty();
+	}
+
+	friend inline auto operator<=>(
+		const ReactionId &,
+		const ReactionId &) = default;
+	friend inline bool operator==(
+		const ReactionId &a,
+		const ReactionId &b) = default;
+};
+
+struct MessageReaction {
+	ReactionId id;
+	int count = 0;
+	bool my = false;
+};
+
+[[nodiscard]] QString SearchTagToQuery(const ReactionId &tagId);
+[[nodiscard]] ReactionId SearchTagFromQuery(const QString &query);
+[[nodiscard]] std::vector<ReactionId> SearchTagsFromQuery(
+	const QString &query);
+
+struct HashtagWithUsername {
+	QString hashtag;
+	QString username;
+};
+[[nodiscard]] HashtagWithUsername HashtagWithUsernameFromQuery(
+	QStringView query);
+
+[[nodiscard]] QString ReactionEntityData(const ReactionId &id);
+
+[[nodiscard]] ReactionId ReactionFromMTP(const MTPReaction &reaction);
+[[nodiscard]] MTPReaction ReactionToMTP(ReactionId id);
+
+} // namespace Data
+
+Q_DECLARE_METATYPE(Data::ReactionId);