/*
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 "settings/settings_common.h"

namespace Settings {
namespace details {

class LocalPasscodeEnter : public AbstractSection {
public:
	enum class EnterType {
		Create,
		Check,
		Change,
	};

	LocalPasscodeEnter(
		QWidget *parent,
		not_null<Window::SessionController*> controller);
	~LocalPasscodeEnter();

	void showFinished() override;
	void setInnerFocus() override;
	[[nodiscard]] rpl::producer<Type> sectionShowOther() override;
	[[nodiscard]] rpl::producer<> sectionShowBack() override;

	[[nodiscard]] rpl::producer<QString> title() override;

protected:
	void setupContent();

	[[nodiscard]] virtual EnterType enterType() const = 0;

private:

	const not_null<Window::SessionController*> _controller;

	rpl::event_stream<> _showFinished;
	rpl::event_stream<> _setInnerFocus;
	rpl::event_stream<Type> _showOther;
	rpl::event_stream<> _showBack;

};

} // namespace details

class LocalPasscodeCreate;
class LocalPasscodeCheck;
class LocalPasscodeChange;

template <typename SectionType>
class TypedLocalPasscodeEnter : public details::LocalPasscodeEnter {
public:
	TypedLocalPasscodeEnter(
		QWidget *parent,
		not_null<Window::SessionController*> controller)
	: details::LocalPasscodeEnter(parent, controller) {
		setupContent();
	}

	[[nodiscard]] static Type Id() {
		return &SectionMetaImplementation<SectionType>::Meta;
	}
	[[nodiscard]] Type id() const final override {
		return Id();
	}

protected:
	[[nodiscard]] EnterType enterType() const final override {
		if constexpr (std::is_same_v<SectionType, LocalPasscodeCreate>) {
			return EnterType::Create;
		}
		if constexpr (std::is_same_v<SectionType, LocalPasscodeCheck>) {
			return EnterType::Check;
		}
		if constexpr (std::is_same_v<SectionType, LocalPasscodeChange>) {
			return EnterType::Change;
		}
		return EnterType::Create;
	}

};

class LocalPasscodeCreate final
	: public TypedLocalPasscodeEnter<LocalPasscodeCreate> {
public:
	using TypedLocalPasscodeEnter::TypedLocalPasscodeEnter;

};

class LocalPasscodeCheck final
	: public TypedLocalPasscodeEnter<LocalPasscodeCheck> {
public:
	using TypedLocalPasscodeEnter::TypedLocalPasscodeEnter;

};

class LocalPasscodeChange final
	: public TypedLocalPasscodeEnter<LocalPasscodeChange> {
public:
	using TypedLocalPasscodeEnter::TypedLocalPasscodeEnter;

};

class LocalPasscodeManage : public Section<LocalPasscodeManage> {
public:
	LocalPasscodeManage(
		QWidget *parent,
		not_null<Window::SessionController*> controller);
	~LocalPasscodeManage();

	[[nodiscard]] rpl::producer<QString> title() override;

	void showFinished() override;
	[[nodiscard]] rpl::producer<Type> sectionShowOther() override;
	[[nodiscard]] rpl::producer<> sectionShowBack() override;

	[[nodiscard]] rpl::producer<std::vector<Type>> removeFromStack() override;

	[[nodiscard]] QPointer<Ui::RpWidget> createPinnedToBottom(
			not_null<Ui::RpWidget*> parent) override;

private:
	void setupContent();

	const not_null<Window::SessionController*> _controller;

	rpl::variable<bool> _isBottomFillerShown;

	rpl::event_stream<> _showFinished;
	rpl::event_stream<Type> _showOther;
	rpl::event_stream<> _showBack;

};

} // namespace Settings