1 files changed, 106 insertions, 0 deletions
diff --git a/Telegram/SourceFiles/payments/payments_form.h b/Telegram/SourceFiles/payments/payments_form.h
new file mode 100644
index 0000000000..92288605ce
--- /dev/null
+++ b/Telegram/SourceFiles/payments/payments_form.h
@@ -0,0 +1,106 @@
+/*
+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 "payments/ui/payments_panel_data.h"
+
+namespace Main {
+class Session;
+} // namespace Main
+
+namespace Payments {
+
+struct FormDetails {
+	QString url;
+	QString nativeProvider;
+	QByteArray nativeParamsJson;
+	UserId botId = 0;
+	UserId providerId = 0;
+	bool canSaveCredentials = false;
+	bool passwordMissing = false;
+
+	[[nodiscard]] bool valid() const {
+		return !url.isEmpty();
+	}
+	[[nodiscard]] explicit operator bool() const {
+		return valid();
+	}
+};
+
+struct FormReady {};
+
+struct FormError {
+	QString type;
+};
+
+struct SendError {
+	QString type;
+};
+
+struct VerificationNeeded {
+	QString url;
+};
+
+struct PaymentFinished {
+	MTPUpdates updates;
+};
+
+struct FormUpdate {
+	std::variant<
+		FormReady,
+		FormError,
+		SendError,
+		VerificationNeeded,
+		PaymentFinished> data;
+};
+
+class Form final {
+public:
+	Form(not_null<Main::Session*> session, FullMsgId itemId);
+
+	[[nodiscard]] const Ui::Invoice &invoice() const {
+		return _invoice;
+	}
+	[[nodiscard]] const FormDetails &details() const {
+		return _details;
+	}
+	[[nodiscard]] const Ui::SavedInformation &savedInformation() const {
+		return _savedInformation;
+	}
+	[[nodiscard]] const Ui::SavedCredentials &savedCredentials() const {
+		return _savedCredentials;
+	}
+
+	[[nodiscard]] rpl::producer<FormUpdate> updates() const {
+		return _updates.events();
+	}
+
+	void send(const QByteArray &serializedCredentials);
+
+private:
+	void requestForm();
+	void processForm(const MTPDpayments_paymentForm &data);
+	void processInvoice(const MTPDinvoice &data);
+	void processDetails(const MTPDpayments_paymentForm &data);
+	void processSavedInformation(const MTPDpaymentRequestedInfo &data);
+	void processSavedCredentials(
+		const MTPDpaymentSavedCredentialsCard &data);
+
+	const not_null<Main::Session*> _session;
+	MsgId _msgId = 0;
+
+	Ui::Invoice _invoice;
+	FormDetails _details;
+	Ui::SavedInformation _savedInformation;
+	Ui::SavedCredentials _savedCredentials;
+
+	rpl::event_stream<FormUpdate> _updates;
+
+};
+
+} // namespace Payments