/*
 * Copyright (c) 2010 Remko Tronçon
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

/*
 * Copyright (c) 2012 Thilo Cestonaro
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

#ifndef SWIFT_QtWebKitChatView_H
#define SWIFT_QtWebKitChatView_H

#include <QString>
#include <QWidget>
#include <QList>
#include <QWebElement>
#include <QInputDialog>
#include <QFileDialog>

#include <boost/shared_ptr.hpp>

#include "MessageSnippet.h"

#include "QtChatView.h"
#include <Swift/Controllers/UIInterfaces/ChatWindow.h>
#include "Swift/Controllers/Settings/SettingsProvider.h"

#include <SwifTools/LastLineTracker.h>

class QWebPage;
class QUrl;

namespace Swift {
	class QtWebView;
	class QtChatTheme;
	class UIEventStream;
	class QtChatWindowJSBridge;

	class QtWebKitChatView : public QtChatView {
			Q_OBJECT

		public:
			static const QString ButtonFileTransferCancel;
			static const QString ButtonFileTransferSetDescription;
			static const QString ButtonFileTransferSendRequest;
			static const QString ButtonFileTransferAcceptRequest;
			static const QString ButtonMUCInvite;

		public:
			QtWebKitChatView(QtChatTheme* theme, QWidget* parent, UIEventStream* eventStream, SettingsProvider* settings, QMap<QString, QString> emoticons);
			virtual ~QtWebKitChatView();
			void addMessage(boost::shared_ptr<ChatSnippet> snippet);
			void addLastSeenLine();
			void replaceWithAction(const std::string& message, const std::string& id, const boost::posix_time::ptime& time);
			void replaceLastMessage(const QString& newMessage);
			void replaceLastMessage(const QString& newMessage, const QString& note);
			void replaceMessage(const std::string& newMessage, const QString& id, const QDateTime& time, const QString& style);
			void replaceMessage(const QString& message, const QString& id, const QDateTime& time, const QString& style);
			void rememberScrolledToBottom();
			void setAckXML(const QString& id, const QString& xml);
			void setReceiptXML(const QString& id, const QString& xml);
			void displayReceiptInfo(const QString& id, bool showIt);
			QString linkimoticonify(const QString& message) const;

			QString getLastSentMessage();
			void addToJSEnvironment(const QString&, QObject*);
			void setFileTransferStatus(QString id, const ChatWindow::FileTransferState state, const QString& msg);
			void setFileTransferProgress(QString id, const int percentageDone);
			void setMUCInvitationJoined(QString id);
			void showEmoticons(bool show);
			void setAckState(std::string const& id, ChatWindow::AckState);
			void setMessageReceiptState(const std::string& id, ChatWindow::ReceiptState state);
			std::string addMessage(const std::string &message, const std::string &senderName, bool senderIsSelf, boost::shared_ptr<SecurityLabel> label, const std::string& avatarPath, const QString& style, const boost::posix_time::ptime& time);
			std::string addMessage(const QString& message, const std::string& senderName, bool senderIsSelf, boost::shared_ptr<SecurityLabel> label, const std::string& avatarPath, const QString& style, const boost::posix_time::ptime& time);
			void setChatWindowHasFocus(bool focus);
			std::string addAction(const std::string &message, const std::string &senderName, bool senderIsSelf, boost::shared_ptr<SecurityLabel> label, const std::string& avatarPath, const boost::posix_time::ptime& time);
			std::string addFileTransfer(const std::string& senderName, bool senderIsSelf, const std::string& filename, const boost::uintmax_t sizeInBytes);
			void addErrorMessage(const std::string& errorMessage);
			void addSystemMessage(const std::string& message);
			void addPresenceMessage(const std::string& message);
			void addMUCInvitation(const std::string& senderName, const JID& jid, const std::string& reason, const std::string& password, bool direct);

			static QString buildChatWindowButton(const QString& name, const QString& id, const QString& arg1 = QString(), const QString& arg2 = QString(), const QString& arg3 = QString());

		public slots:
			void copySelectionToClipboard();
			void scrollToBottom();
			void handleLinkClicked(const QUrl&);
			void handleKeyPressEvent(QKeyEvent* event);
			void resetView();
			void increaseFontSize(int numSteps = 1);
			void decreaseFontSize();
			void resizeFont(int fontSizeSteps);

		private slots:
			void handleViewLoadFinished(bool);
			void handleFrameSizeChanged();
			void handleClearRequested();
			void handleHTMLButtonClicked(QString id, QString arg1, QString arg2, QString arg3);

		private:
			enum PreviousMessageKind {
				PreviosuMessageWasNone,
				PreviousMessageWasMessage,
				PreviousMessageWasSystem,
				PreviousMessageWasPresence,
				PreviousMessageWasFileTransfer,
				PreviousMessageWasMUCInvite
			};

			void headerEncode();
			void messageEncode();
			void addToDOM(boost::shared_ptr<ChatSnippet> snippet);
			QWebElement snippetToDOM(boost::shared_ptr<ChatSnippet> snippet);
			bool appendToPreviousCheck(PreviousMessageKind messageKind, const std::string& senderName, bool senderIsSelf) const;
			void handleSettingChanged(const std::string& setting);

			bool viewReady_;
			bool isAtBottom_;
			QtWebView* webView_;
			QWebPage* webPage_;
			int fontSizeSteps_;
			QtChatTheme* theme_;
			QWebElement newInsertPoint_;
			QWebElement lineSeparator_;
			QWebElement lastElement_;
			QWebElement document_;
			bool previousMessageWasSelf_;
			QString previousSenderName_;
			PreviousMessageKind previousMessageKind_;
			int idCounter_;
			LastLineTracker lastLineTracker_;
			UIEventStream* eventStream_;
			std::map<QString, QString> descriptions_;
			QtChatWindowJSBridge* jsBridge_;
			SettingsProvider* settings_;
			QMap<QString, QString> emoticons_;
			bool showEmoticons_;
	};
}

#endif