/*
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 "boxes/abstract_box.h"
#include "mtproto/sender.h"

namespace Data {
class PhotoMedia;
class CloudImageView;
} // namespace Data

namespace Main {
class Session;
} // namespace Main

namespace Ui {
class Checkbox;
class FlatLabel;
class EmptyUserpic;
} // namespace Ui

class InformBox;
class ConfirmBox : public Ui::BoxContent, public ClickHandlerHost {
public:

	using ConfirmedCallback = std::variant<
		v::null_t,
		FnMut<void()>,
		FnMut<void(Fn<void()>)>>;

	ConfirmBox(
		QWidget*,
		const QString &text,
		ConfirmedCallback confirmedCallback = FnMut<void()>(),
		FnMut<void()> cancelledCallback = FnMut<void()>());
	ConfirmBox(
		QWidget*,
		const QString &text,
		const QString &confirmText,
		ConfirmedCallback confirmedCallback = FnMut<void()>(),
		FnMut<void()> cancelledCallback = FnMut<void()>());
	ConfirmBox(
		QWidget*,
		const QString &text,
		const QString &confirmText,
		const style::RoundButton &confirmStyle,
		ConfirmedCallback confirmedCallback = FnMut<void()>(),
		FnMut<void()> cancelledCallback = FnMut<void()>());
	ConfirmBox(
		QWidget*,
		const QString &text,
		const QString &confirmText,
		const QString &cancelText,
		ConfirmedCallback confirmedCallback = FnMut<void()>(),
		FnMut<void()> cancelledCallback = FnMut<void()>());
	ConfirmBox(
		QWidget*,
		const QString &text,
		const QString &confirmText,
		const style::RoundButton &confirmStyle,
		const QString &cancelText,
		ConfirmedCallback confirmedCallback = FnMut<void()>(),
		FnMut<void()> cancelledCallback = FnMut<void()>());
	ConfirmBox(
		QWidget*,
		const TextWithEntities &text,
		const QString &confirmText,
		ConfirmedCallback confirmedCallback = v::null,
		FnMut<void()> cancelledCallback = nullptr);

	void updateLink();

	// If strict cancel is set the cancelledCallback is only called if the cancel button was pressed.
	void setStrictCancel(bool strictCancel) {
		_strictCancel = strictCancel;
	}

	void setMaxLineCount(int count);

	// ClickHandlerHost interface
	void clickHandlerActiveChanged(const ClickHandlerPtr &p, bool active) override;
	void clickHandlerPressedChanged(const ClickHandlerPtr &p, bool pressed) override;

protected:
	void prepare() override;

	void keyPressEvent(QKeyEvent *e) override;
	void paintEvent(QPaintEvent *e) override;
	void mouseMoveEvent(QMouseEvent *e) override;
	void mousePressEvent(QMouseEvent *e) override;
	void mouseReleaseEvent(QMouseEvent *e) override;
	void leaveEventHook(QEvent *e) override;

private:
	struct InformBoxTag {
	};
	ConfirmBox(const InformBoxTag &, const QString &text, const QString &doneText, Fn<void()> closedCallback);
	ConfirmBox(const InformBoxTag &, const TextWithEntities &text, const QString &doneText, Fn<void()> closedCallback);
	FnMut<void()> generateInformCallback(Fn<void()> closedCallback);
	friend class InformBox;

	void confirmed();
	void init(const QString &text);
	void init(const TextWithEntities &text);
	void textUpdated();
	void updateHover();

	QString _confirmText;
	QString _cancelText;
	const style::RoundButton &_confirmStyle;
	bool _informative = false;

	Ui::Text::String _text;
	int _textWidth = 0;
	int _textHeight = 0;
	int _maxLineCount = 16;

	QPoint _lastMousePos;

	bool _confirmed = false;
	bool _cancelled = false;
	bool _strictCancel = false;
	ConfirmBox::ConfirmedCallback _confirmedCallback;
	FnMut<void()> _cancelledCallback;

};

class InformBox : public ConfirmBox {
public:
	InformBox(QWidget*, const QString &text, Fn<void()> closedCallback = nullptr);
	InformBox(QWidget*, const QString &text, const QString &doneText, Fn<void()> closedCallback = nullptr);
	InformBox(QWidget*, const TextWithEntities &text, Fn<void()> closedCallback = nullptr);
	InformBox(QWidget*, const TextWithEntities &text, const QString &doneText, Fn<void()> closedCallback = nullptr);

};

class MaxInviteBox : public Ui::BoxContent, private base::Subscriber {
public:
	MaxInviteBox(QWidget*, not_null<ChannelData*> channel);

protected:
	void prepare() override;

	void paintEvent(QPaintEvent *e) override;
	void resizeEvent(QResizeEvent *e) override;
	void mouseMoveEvent(QMouseEvent *e) override;
	void mousePressEvent(QMouseEvent *e) override;
	void leaveEventHook(QEvent *e) override;

private:
	void updateSelected(const QPoint &cursorGlobalPosition);

	not_null<ChannelData*> _channel;

	Ui::Text::String _text;
	int32 _textWidth, _textHeight;

	QRect _invitationLink;
	bool _linkOver = false;

	QPoint _lastMousePos;

};

class PinMessageBox final : public Ui::BoxContent {
public:
	PinMessageBox(QWidget*, not_null<PeerData*> peer, MsgId msgId);

protected:
	void prepare() override;

	void resizeEvent(QResizeEvent *e) override;
	void keyPressEvent(QKeyEvent *e) override;

private:
	void pinMessage();

	const not_null<PeerData*> _peer;
	MTP::Sender _api;
	MsgId _msgId;

	object_ptr<Ui::FlatLabel> _text;
	object_ptr<Ui::Checkbox> _notify = { nullptr };

	mtpRequestId _requestId = 0;

};

class DeleteMessagesBox final : public Ui::BoxContent {
public:
	DeleteMessagesBox(
		QWidget*,
		not_null<HistoryItem*> item,
		bool suggestModerateActions);
	DeleteMessagesBox(
		QWidget*,
		not_null<Main::Session*> session,
		MessageIdsList &&selected);
	DeleteMessagesBox(QWidget*, not_null<PeerData*> peer, bool justClear);

	void setDeleteConfirmedCallback(Fn<void()> callback) {
		_deleteConfirmedCallback = std::move(callback);
	}

protected:
	void prepare() override;

	void resizeEvent(QResizeEvent *e) override;
	void keyPressEvent(QKeyEvent *e) override;

private:
	struct RevokeConfig {
		QString checkbox;
		TextWithEntities description;
	};
	void deleteAndClear();
	[[nodiscard]] PeerData *checkFromSinglePeer() const;
	[[nodiscard]] bool hasScheduledMessages() const;
	[[nodiscard]] std::optional<RevokeConfig> revokeText(
		not_null<PeerData*> peer) const;

	const not_null<Main::Session*> _session;

	PeerData * const _wipeHistoryPeer = nullptr;
	const bool _wipeHistoryJustClear = false;
	const MessageIdsList _ids;
	UserData *_moderateFrom = nullptr;
	ChannelData *_moderateInChannel = nullptr;
	bool _moderateBan = false;
	bool _moderateDeleteAll = false;

	object_ptr<Ui::FlatLabel> _text = { nullptr };
	object_ptr<Ui::Checkbox> _revoke = { nullptr };
	object_ptr<Ui::Checkbox> _banUser = { nullptr };
	object_ptr<Ui::Checkbox> _reportSpam = { nullptr };
	object_ptr<Ui::Checkbox> _deleteAll = { nullptr };

	Fn<void()> _deleteConfirmedCallback;

};

class ConfirmDontWarnBox : public Ui::BoxContent {
public:
	ConfirmDontWarnBox(
		QWidget*,
		rpl::producer<TextWithEntities> text,
		const QString &checkbox,
		rpl::producer<QString> confirm,
		FnMut<void(bool)> callback);

protected:
	void prepare() override;

private:
	not_null<Ui::RpWidget*> setupContent(
		rpl::producer<TextWithEntities> text,
		const QString &checkbox,
		FnMut<void(bool)> callback);

	rpl::producer<QString> _confirm;
	FnMut<void()> _callback;
	not_null<Ui::RpWidget*> _content;

};