/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once

#include <QtWidgets/QWidget>
#include "ui/flatbutton.h"
#include "ui/flatinput.h"
#include "intro/introwidget.h"

class CodeInput final : public FlatInput {
	Q_OBJECT

public:
	CodeInput(QWidget *parent, const style::flatInput &st, const QString &ph);

signals:
	void codeEntered();

protected:
	void correctValue(const QString &was, QString &now);

};

class IntroCode final : public IntroStep {
	Q_OBJECT

public:

	IntroCode(IntroWidget *parent);

	void paintEvent(QPaintEvent *e) override;
	void resizeEvent(QResizeEvent *e) override;

	void step_error(float64 ms, bool timer);

	bool hasBack() const override {
		return true;
	}
	void activate() override;
	void finished() override;
	void cancelled() override;
	void onSubmit() override;

	void codeSubmitDone(const MTPauth_Authorization &result);
	bool codeSubmitFail(const RPCError &error);

	void updateDescText();

public slots:

	void onSubmitCode();
	void onNoTelegramCode();
	void onInputChange();
	void onSendCall();
	void onCheckRequest();

private:

	void showError(const QString &err);
	void callDone(const MTPauth_SentCode &v);
	void gotPassword(const MTPaccount_Password &result);

	void stopCheck();

	QString error;
	anim::fvalue a_errorAlpha;
	Animation _a_error;

	FlatButton next;

	Text _desc;
	LinkButton _noTelegramCode;
	mtpRequestId _noTelegramCodeRequestId;
	QRect textRect;

	void noTelegramCodeDone(const MTPauth_SentCode &result);
	bool noTelegramCodeFail(const RPCError &result);

	CodeInput code;
	QString sentCode;
	mtpRequestId sentRequest;
	QTimer callTimer;
	IntroWidget::CallStatus callStatus;

	QTimer checkRequest;
};