/*
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) 2014-2015 John Preston, https://desktop.telegram.org
*/
#pragma once

#include "types.h"

class Application;
class Window;
class MainWidget;
class SettingsWidget;
class ApiWrap;
class Font;
class Color;
class FileUploader;

#include "history.h"

typedef QMap<HistoryItem*, bool> HistoryItemsMap;
typedef QHash<VideoData*, HistoryItemsMap> VideoItems;
typedef QHash<AudioData*, HistoryItemsMap> AudioItems;
typedef QHash<DocumentData*, HistoryItemsMap> DocumentItems;
typedef QHash<WebPageData*, HistoryItemsMap> WebPageItems;
struct ReplyMarkup {
	ReplyMarkup(int32 flags = 0) : flags(flags) {
	}
	typedef QList<QList<QString> > Commands;
	Commands commands;
	int32 flags;
};

enum RoundCorners {
	NoneCorners = 0x00, // for images
	BlackCorners,
	ServiceCorners,
	ServiceSelectedCorners,
	SelectedOverlayCorners,
	DateCorners,
	DateSelectedCorners,
	ForwardCorners,
	MediaviewSaveCorners,
	EmojiHoverCorners,
	StickerHoverCorners,
	BotKeyboardCorners,
	BotKeyboardOverCorners,
	BotKeyboardDownCorners,
	PhotoSelectOverlayCorners,
	
	DocRedCorners,
	DocYellowCorners,
	DocGreenCorners,
	DocBlueCorners,

	InShadowCorners, // for photos without bg
	InSelectedShadowCorners,

	MessageInCorners, // with shadow
	MessageInSelectedCorners,
	MessageOutCorners,
	MessageOutSelectedCorners,
	ButtonHoverCorners,

	RoundCornersCount
};

enum ForwardWhatMessages {
	ForwardSelectedMessages,
	ForwardContextMessage,
	ForwardPressedMessage,
	ForwardPressedLinkMessage
};

class LayeredWidget;

namespace App {
	Application *app();
	Window *wnd();
	MainWidget *main();
	SettingsWidget *settings();
	bool passcoded();
	FileUploader *uploader();
	ApiWrap *api();

	void logOut();
	bool loggedOut();

	QString formatPhone(QString phone);

	int32 onlineForSort(UserData *user, int32 now);
	int32 onlineWillChangeIn(UserData *user, int32 nowOnServer);
	QString onlineText(UserData *user, int32 nowOnServer, bool precise = false);
	bool onlineColorUse(UserData *user, int32 now);

	UserData *feedUsers(const MTPVector<MTPUser> &users, bool emitPeerUpdated = true); // returns last user
	PeerData *feedChats(const MTPVector<MTPChat> &chats, bool emitPeerUpdated = true); // returns last chat
	void feedParticipants(const MTPChatParticipants &p, bool requestBotInfos, bool emitPeerUpdated = true);
	void feedParticipantAdd(const MTPDupdateChatParticipantAdd &d, bool emitPeerUpdated = true);
	void feedParticipantDelete(const MTPDupdateChatParticipantDelete &d, bool emitPeerUpdated = true);
	void feedChatAdmins(const MTPDupdateChatAdmins &d, bool emitPeerUpdated = true);
	void feedParticipantAdmin(const MTPDupdateChatParticipantAdmin &d, bool emitPeerUpdated = true);
	bool checkEntitiesAndViewsUpdate(const MTPDmessage &m); // returns true if item found and it is not detached
	void feedMsgs(const QVector<MTPMessage> &msgs, NewMessageType type);
	void feedMsgs(const MTPVector<MTPMessage> &msgs, NewMessageType type);
	void feedInboxRead(const PeerId &peer, MsgId upTo);
	void feedOutboxRead(const PeerId &peer, MsgId upTo);
	void feedWereDeleted(ChannelId channelId, const QVector<MTPint> &msgsIds);
	void feedUserLinks(const MTPVector<MTPcontacts_Link> &links, bool emitPeerUpdated = true);
	void feedUserLink(MTPint userId, const MTPContactLink &myLink, const MTPContactLink &foreignLink, bool emitPeerUpdated = true);

	void markPeerUpdated(PeerData *data);
	void clearPeerUpdated(PeerData *data);
	void emitPeerUpdated();

	ImagePtr image(const MTPPhotoSize &size);
	StorageImageLocation imageLocation(int32 w, int32 h, const MTPFileLocation &loc);
	StorageImageLocation imageLocation(const MTPPhotoSize &size);

	PhotoData *feedPhoto(const MTPPhoto &photo, const PreparedPhotoThumbs &thumbs);
	PhotoData *feedPhoto(const MTPPhoto &photo, PhotoData *convert = 0);
	PhotoData *feedPhoto(const MTPDphoto &photo, PhotoData *convert = 0);
	VideoData *feedVideo(const MTPDvideo &video, VideoData *convert = 0);
	AudioData *feedAudio(const MTPaudio &audio, AudioData *convert = 0);
	AudioData *feedAudio(const MTPDaudio &audio, AudioData *convert = 0);
	DocumentData *feedDocument(const MTPdocument &document, const QPixmap &thumb);
	DocumentData *feedDocument(const MTPdocument &document, DocumentData *convert = 0);
	DocumentData *feedDocument(const MTPDdocument &document, DocumentData *convert = 0);
	WebPageData *feedWebPage(const MTPDwebPage &webpage, WebPageData *convert = 0);
	WebPageData *feedWebPage(const MTPDwebPagePending &webpage, WebPageData *convert = 0);
	WebPageData *feedWebPage(const MTPWebPage &webpage);

	PeerData *peerLoaded(const PeerId &id);
	UserData *userLoaded(const PeerId &id);
	ChatData *chatLoaded(const PeerId &id);
	ChannelData *channelLoaded(const PeerId &id);
	UserData *userLoaded(int32 user);
	ChatData *chatLoaded(int32 chat);
	ChannelData *channelLoaded(int32 channel);

	PeerData *peer(const PeerId &id);
	UserData *user(const PeerId &id);
	ChatData *chat(const PeerId &id);
	ChannelData *channel(const PeerId &id);
	UserData *user(int32 user_id);
	ChatData *chat(int32 chat_id);
	ChannelData *channel(int32 channel_id);
	UserData *self();
	PeerData *peerByName(const QString &username);
	QString peerName(const PeerData *peer, bool forDialogs = false);
	PhotoData *photo(const PhotoId &photo);
	PhotoData *photoSet(const PhotoId &photo, PhotoData *convert, const uint64 &access, int32 date, const ImagePtr &thumb, const ImagePtr &medium, const ImagePtr &full);
	VideoData *video(const VideoId &video);
	VideoData *videoSet(const VideoId &video, VideoData *convert, const uint64 &access, int32 date, int32 duration, int32 w, int32 h, const ImagePtr &thumb, int32 dc, int32 size);
	AudioData *audio(const AudioId &audio);
	AudioData *audioSet(const AudioId &audio, AudioData *convert, const uint64 &access, int32 date, const QString &mime, int32 duration, int32 dc, int32 size);
	DocumentData *document(const DocumentId &document);
	DocumentData *documentSet(const DocumentId &document, DocumentData *convert, const uint64 &access, int32 date, const QVector<MTPDocumentAttribute> &attributes, const QString &mime, const ImagePtr &thumb, int32 dc, int32 size, const StorageImageLocation &thumbLocation);
	WebPageData *webPage(const WebPageId &webPage);
	WebPageData *webPageSet(const WebPageId &webPage, WebPageData *convert, const QString &, const QString &url, const QString &displayUrl, const QString &siteName, const QString &title, const QString &description, PhotoData *photo, DocumentData *doc, int32 duration, const QString &author, int32 pendingTill);
	ImageLinkData *imageLink(const QString &imageLink);
	ImageLinkData *imageLinkSet(const QString &imageLink, ImageLinkType type, const QString &url);
	void forgetMedia();

	MTPPhoto photoFromUserPhoto(MTPint userId, MTPint date, const MTPUserProfilePhoto &photo);

	Histories &histories();
	History *history(const PeerId &peer);
	History *historyFromDialog(const PeerId &peer, int32 unreadCnt, int32 maxInboxRead);
	History *historyLoaded(const PeerId &peer);
	HistoryItem *histItemById(ChannelId channelId, MsgId itemId);
	inline HistoryItem *histItemById(const FullMsgId &msgId) {
		return histItemById(msgId.channel, msgId.msg);
	}
	HistoryItem *historyRegItem(HistoryItem *item);
	void historyItemDetached(HistoryItem *item);
	void historyUnregItem(HistoryItem *item);
	void historyClearMsgs();
	void historyClearItems();
	void historyRegReply(HistoryReply *reply, HistoryItem *to);
	void historyUnregReply(HistoryReply *reply, HistoryItem *to);

	void historyRegRandom(uint64 randomId, const FullMsgId &itemId);
	void historyUnregRandom(uint64 randomId);
	FullMsgId histItemByRandom(uint64 randomId);
	void historyRegSentData(uint64 randomId, const PeerId &peerId, const QString &text);
	void historyUnregSentData(uint64 randomId);
	void histSentDataByItem(uint64 randomId, PeerId &peerId, QString &text);

	void hoveredItem(HistoryItem *item);
	HistoryItem *hoveredItem();
	void pressedItem(HistoryItem *item);
	HistoryItem *pressedItem();
	void hoveredLinkItem(HistoryItem *item);
	HistoryItem *hoveredLinkItem();
	void pressedLinkItem(HistoryItem *item);
	HistoryItem *pressedLinkItem();
	void contextItem(HistoryItem *item);
	HistoryItem *contextItem();
	void mousedItem(HistoryItem *item);
	HistoryItem *mousedItem();

	const style::font &monofont();
	const QPixmap &sprite();
	const QPixmap &emoji();
	const QPixmap &emojiLarge();
	const QPixmap &emojiSingle(EmojiPtr emoji, int32 fontHeight);

	void initMedia();
	void deinitMedia(bool completely = true);
	void playSound();

	void checkImageCacheSize();

	bool isValidPhone(QString phone);

	void quit();
	bool quiting();
	void setQuiting();

    QImage readImage(QByteArray data, QByteArray *format = 0, bool opaque = true, bool *animated = 0);
	QImage readImage(const QString &file, QByteArray *format = 0, bool opaque = true, bool *animated = 0, QByteArray *content = 0);

	void regVideoItem(VideoData *data, HistoryItem *item);
	void unregVideoItem(VideoData *data, HistoryItem *item);
	const VideoItems &videoItems();

	void regAudioItem(AudioData *data, HistoryItem *item);
	void unregAudioItem(AudioData*data, HistoryItem *item);
	const AudioItems &audioItems();

	void regDocumentItem(DocumentData *data, HistoryItem *item);
	void unregDocumentItem(DocumentData *data, HistoryItem *item);
	const DocumentItems &documentItems();

	void regWebPageItem(WebPageData *data, HistoryItem *item);
	void unregWebPageItem(WebPageData *data, HistoryItem *item);
	const WebPageItems &webPageItems();

	void regSharedContactPhone(int32 userId, const QString &phone);
	QString phoneFromSharedContact(int32 userId);

	void regMuted(PeerData *peer, int32 changeIn);
	void unregMuted(PeerData *peer);
	void updateMuted();

	void feedReplyMarkup(ChannelId channelId, MsgId msgId, const MTPReplyMarkup &markup);
	void clearReplyMarkup(ChannelId channelId, MsgId msgId);
	const ReplyMarkup &replyMarkup(ChannelId channelId, MsgId msgId);

	void setProxySettings(QNetworkAccessManager &manager);
	void setProxySettings(QTcpSocket &socket);

	QImage **cornersMask();
	void roundRect(Painter &p, int32 x, int32 y, int32 w, int32 h, const style::color &bg, RoundCorners index, const style::color *sh = 0);
	inline void roundRect(Painter &p, const QRect &rect, const style::color &bg, RoundCorners index, const style::color *sh = 0) {
		return roundRect(p, rect.x(), rect.y(), rect.width(), rect.height(), bg, index, sh);
	}
	void roundShadow(Painter &p, int32 x, int32 y, int32 w, int32 h, const style::color &sh, RoundCorners index);
	inline void roundShadow(Painter &p, const QRect &rect, const style::color &sh, RoundCorners index) {
		return roundShadow(p, rect.x(), rect.y(), rect.width(), rect.height(), sh, index);
	}
	void roundRect(Painter &p, int32 x, int32 y, int32 w, int32 h, const style::color &bg);
	inline void roundRect(Painter &p, const QRect &rect, const style::color &bg) {
		return roundRect(p, rect.x(), rect.y(), rect.width(), rect.height(), bg);
	}

	void initBackground(int32 id = DefaultChatBackground, const QImage &p = QImage(), bool nowrite = false);

	const style::color &msgServiceBg();
	const style::color &msgServiceSelectBg();
	const style::color &historyScrollBarColor();
	const style::color &historyScrollBgColor();
	const style::color &historyScrollBarOverColor();
	const style::color &historyScrollBgOverColor();
	const style::color &introPointHoverColor();

	struct WallPaper {
		WallPaper(int32 id, ImagePtr thumb, ImagePtr full) : id(id), thumb(thumb), full(full) {
		}
		int32 id;
		ImagePtr thumb;
		ImagePtr full;
	};
	typedef QList<WallPaper> WallPapers;
	DeclareSetting(WallPapers, ServerBackgrounds);

	void sendBotCommand(const QString &cmd, MsgId replyTo = 0);
	void insertBotCommand(const QString &cmd);
	void searchByHashtag(const QString &tag, PeerData *inPeer);
	void openPeerByName(const QString &username, bool toProfile = false, 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 showLayer(LayeredWidget *w, bool forceFast = false);
	void replaceLayer(LayeredWidget *w);
	void showLayerLast(LayeredWidget *w);

};

namespace Notify {

	void userIsBotChanged(UserData *user);
	void botCommandsChanged(UserData *user);
	void migrateUpdated(PeerData *peer);

};

inline int32 stickersCountHash(bool checkOfficial = false) {
	uint32 acc = 0;
	bool foundOfficial = false, foundBad = false;;
	const StickerSets &sets(cStickerSets());
	const StickerSetsOrder &order(cStickerSetsOrder());
	for (StickerSetsOrder::const_iterator i = order.cbegin(), e = order.cend(); i != e; ++i) {
		StickerSets::const_iterator j = sets.constFind(*i);
		if (j != sets.cend()) {
			if (j->id == 0) {
				foundBad = true;
			} else if (j->flags & MTPDstickerSet::flag_official) {
				foundOfficial = true;
			}
			if (!(j->flags & MTPDstickerSet::flag_disabled)) {
				acc = (acc * 20261) + j->hash;
			}
		}
	}
	return (!checkOfficial || (!foundBad && foundOfficial)) ? int32(acc & 0x7FFFFFFF) : 0;
}