/*
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

class LayeredWidget;

namespace App {

void sendBotCommand(PeerData *peer, UserData *bot, const QString &cmd, MsgId replyTo = 0);
bool insertBotCommand(const QString &cmd, bool specialGif = false);
void activateBotCommand(const HistoryItem *msg, int row, int col);
void searchByHashtag(const QString &tag, PeerData *inPeer);
void openPeerByName(const QString &username, MsgId msgId = ShowAtUnreadMsgId, const QString &startToken = QString());
void joinGroupByHash(const QString &hash);
void stickersBox(const QString &name);
void openLocalUrl(const QString &url);
bool forward(const PeerId &peer, ForwardWhatMessages what);
void removeDialog(History *history);
void showSettings();

void activateClickHandler(ClickHandlerPtr handler, Qt::MouseButton button);

void logOutDelayed();

} // namespace App

namespace InlineBots {
namespace Layout {

class ItemBase;

} // namespace Layout
} // namespace InlineBots

namespace Ui {

void showMediaPreview(DocumentData *document);
void showMediaPreview(PhotoData *photo);
void hideMediaPreview();

void showLayer(LayeredWidget *box, ShowLayerOptions options = CloseOtherLayers);
void hideLayer(bool fast = false);
bool isLayerShown();
bool isMediaViewShown();
bool isInlineItemBeingChosen();

void repaintHistoryItem(const HistoryItem *item);
void repaintInlineItem(const InlineBots::Layout::ItemBase *layout);
bool isInlineItemVisible(const InlineBots::Layout::ItemBase *reader);
void autoplayMediaInlineAsync(const FullMsgId &msgId);

void showPeerProfile(const PeerId &peer);
inline void showPeerProfile(const PeerData *peer) {
	showPeerProfile(peer->id);
}
inline void showPeerProfile(const History *history) {
	showPeerProfile(history->peer->id);
}

void showPeerOverview(const PeerId &peer, MediaOverviewType type);
inline void showPeerOverview(const PeerData *peer, MediaOverviewType type) {
	showPeerOverview(peer->id, type);
}
inline void showPeerOverview(const History *history, MediaOverviewType type) {
	showPeerOverview(history->peer->id, type);
}

void showPeerHistory(const PeerId &peer, MsgId msgId, bool back = false);
inline void showPeerHistory(const PeerData *peer, MsgId msgId, bool back = false) {
	showPeerHistory(peer->id, msgId, back);
}
inline void showPeerHistory(const History *history, MsgId msgId, bool back = false) {
	showPeerHistory(history->peer->id, msgId, back);
}
inline void showPeerHistoryAtItem(const HistoryItem *item) {
	showPeerHistory(item->history()->peer->id, item->id);
}
void showPeerHistoryAsync(const PeerId &peer, MsgId msgId);
inline void showChatsList() {
	showPeerHistory(PeerId(0), 0);
}
inline void showChatsListAsync() {
	showPeerHistoryAsync(PeerId(0), 0);
}
PeerData *getPeerForMouseAction();

bool hideWindowNoQuit();

bool skipPaintEvent(QWidget *widget, QPaintEvent *event);

} // namespace Ui

enum ClipStopperType {
	ClipStopperMediaview,
	ClipStopperSavedGifsPanel,
};

namespace Notify {

void userIsBotChanged(UserData *user);
void userIsContactChanged(UserData *user, bool fromThisApp = false);
void botCommandsChanged(UserData *user);

void inlineBotRequesting(bool requesting);
void replyMarkupUpdated(const HistoryItem *item);
void inlineKeyboardMoved(const HistoryItem *item, int oldKeyboardTop, int newKeyboardTop);
bool switchInlineBotButtonReceived(const QString &query);

void migrateUpdated(PeerData *peer);

void clipStopperHidden(ClipStopperType type);

void historyItemLayoutChanged(const HistoryItem *item);
void inlineItemLayoutChanged(const InlineBots::Layout::ItemBase *layout);
void historyMuteUpdated(History *history);

// handle pending resize() / paint() on history items
void handlePendingHistoryUpdate();
void unreadCounterUpdated();

} // namespace Notify

#define DeclareReadOnlyVar(Type, Name) const Type &Name();
#define DeclareRefVar(Type, Name) DeclareReadOnlyVar(Type, Name) \
	Type &Ref##Name();
#define DeclareVar(Type, Name) DeclareRefVar(Type, Name) \
	void Set##Name(const Type &Name);

namespace Sandbox {

bool CheckBetaVersionDir();
void WorkingDirReady();

void start();
void finish();

uint64 UserTag();

DeclareReadOnlyVar(QString, LangSystemISO);
DeclareReadOnlyVar(int32, LangSystem);
DeclareVar(QByteArray, LastCrashDump);
DeclareVar(ConnectionProxy, PreLaunchProxy);

} // namespace Sandbox

namespace Adaptive {
enum Layout {
	OneColumnLayout,
	NormalLayout,
	WideLayout,
};
} // namespace Adaptive

namespace DebugLogging {
enum Flags {
	FileLoaderFlag = 0x00000001,
};
} // namespace DebugLogging

namespace Stickers {

static const uint64 DefaultSetId = 0; // for backward compatibility
static const uint64 CustomSetId = 0xFFFFFFFFFFFFFFFFULL, RecentSetId = 0xFFFFFFFFFFFFFFFEULL;
static const uint64 NoneSetId = 0xFFFFFFFFFFFFFFFDULL; // for emoji/stickers panel
struct Set {
	Set(uint64 id, uint64 access, const QString &title, const QString &shortName, int32 count, int32 hash, MTPDstickerSet::Flags flags) : id(id), access(access), title(title), shortName(shortName), count(count), hash(hash), flags(flags) {
	}
	uint64 id, access;
	QString title, shortName;
	int32 count, hash;
	MTPDstickerSet::Flags flags;
	StickerPack stickers;
	StickersByEmojiMap emoji;
};
using Sets = QMap<uint64, Set>;
using Order = QList<uint64>;

} // namespace Stickers

namespace Global {

bool started();
void start();
void finish();

DeclareReadOnlyVar(uint64, LaunchId);
DeclareRefVar(SingleDelayedCall, HandleHistoryUpdate);
DeclareRefVar(SingleDelayedCall, HandleUnreadCounterUpdate);
DeclareRefVar(SingleDelayedCall, HandleFileDialogQueue);

DeclareVar(Adaptive::Layout, AdaptiveLayout);
DeclareVar(bool, AdaptiveForWide);
DeclareVar(bool, DialogsModeEnabled);
DeclareVar(Dialogs::Mode, DialogsMode);

DeclareVar(int32, DebugLoggingFlags);

// config
DeclareVar(int32, ChatSizeMax);
DeclareVar(int32, MegagroupSizeMax);
DeclareVar(int32, ForwardedCountMax);
DeclareVar(int32, OnlineUpdatePeriod);
DeclareVar(int32, OfflineBlurTimeout);
DeclareVar(int32, OfflineIdleTimeout);
DeclareVar(int32, OnlineFocusTimeout); // not from config
DeclareVar(int32, OnlineCloudTimeout);
DeclareVar(int32, NotifyCloudDelay);
DeclareVar(int32, NotifyDefaultDelay);
DeclareVar(int32, ChatBigSize);
DeclareVar(int32, PushChatPeriod);
DeclareVar(int32, PushChatLimit);
DeclareVar(int32, SavedGifsLimit);
DeclareVar(int32, EditTimeLimit);

typedef QMap<PeerId, MsgId> HiddenPinnedMessagesMap;
DeclareVar(HiddenPinnedMessagesMap, HiddenPinnedMessages);

typedef OrderedSet<HistoryItem*> PendingItemsMap;
DeclareRefVar(PendingItemsMap, PendingRepaintItems);

DeclareVar(Stickers::Sets, StickerSets);
DeclareVar(Stickers::Order, StickerSetsOrder);
DeclareVar(uint64, LastStickersUpdate);

DeclareVar(MTP::DcOptions, DcOptions);

typedef QMap<uint64, QPixmap> CircleMasksMap;
DeclareRefVar(CircleMasksMap, CircleMasks);

} // namespace Global

namespace Adaptive {

inline bool OneColumn() {
	return Global::AdaptiveLayout() == OneColumnLayout;
}
inline bool Normal() {
	return Global::AdaptiveLayout() == NormalLayout;
}
inline bool Wide() {
	return Global::AdaptiveForWide() && (Global::AdaptiveLayout() == WideLayout);
}

} // namespace Adaptive

namespace DebugLogging {

inline bool FileLoader() {
	return (Global::DebugLoggingFlags() | FileLoaderFlag) != 0;
}

} // namespace DebugLogging