/* RainLoop Webmail (c) RainLoop Team | Licensed under CC BY-NC-SA 3.0 */

(function (module, require) {

	'use strict';

	var
		window = require('window'),
		$ = require('$'),
		_ = require('_'),
		ko = require('ko'),
		moment = require('moment'),
		$win = require('$win'),
		$div = require('$div'),

		Enums = require('Enums'),
		Utils = require('Utils'),
		LinkBuilder = require('LinkBuilder'),

		EmailModel = require('Model:Email'),
		AttachmentModel = require('Model:Attachment')
	;

	/**
	* @constructor
	*/
	function MessageModel()
	{
		this.folderFullNameRaw = '';
		this.uid = '';
		this.hash = '';
		this.requestHash = '';
		this.subject = ko.observable('');
		this.subjectPrefix = ko.observable('');
		this.subjectSuffix = ko.observable('');
		this.size = ko.observable(0);
		this.dateTimeStampInUTC = ko.observable(0);
		this.priority = ko.observable(Enums.MessagePriority.Normal);

		this.proxy = false;

		this.fromEmailString = ko.observable('');
		this.fromClearEmailString = ko.observable('');
		this.toEmailsString = ko.observable('');
		this.toClearEmailsString = ko.observable('');

		this.senderEmailsString = ko.observable('');
		this.senderClearEmailsString = ko.observable('');

		this.emails = [];

		this.from = [];
		this.to = [];
		this.cc = [];
		this.bcc = [];
		this.replyTo = [];
		this.deliveredTo = [];

		this.newForAnimation = ko.observable(false);

		this.deleted = ko.observable(false);
		this.unseen = ko.observable(false);
		this.flagged = ko.observable(false);
		this.answered = ko.observable(false);
		this.forwarded = ko.observable(false);
		this.isReadReceipt = ko.observable(false);

		this.focused = ko.observable(false);
		this.selected = ko.observable(false);
		this.checked = ko.observable(false);
		this.hasAttachments = ko.observable(false);
		this.attachmentsMainType = ko.observable('');

		this.moment = ko.observable(moment(moment.unix(0)));

		this.attachmentIconClass = ko.computed(function () {
			var sClass = '';
			if (this.hasAttachments())
			{
				sClass = 'icon-attachment';
				switch (this.attachmentsMainType())
				{
					case 'image':
						sClass = 'icon-image';
						break;
					case 'archive':
						sClass = 'icon-file-zip';
						break;
					case 'doc':
						sClass = 'icon-file-text';
						break;
	 //				case 'pdf':
	 //					sClass = 'icon-file-pdf';
	 //					break;
				}
			}
			return sClass;
		}, this);

		this.fullFormatDateValue = ko.computed(function () {
			return MessageModel.calculateFullFromatDateValue(this.dateTimeStampInUTC());
		}, this);

		this.momentDate = Utils.createMomentDate(this);
		this.momentShortDate = Utils.createMomentShortDate(this);

		this.dateTimeStampInUTC.subscribe(function (iValue) {
			var iNow = moment().unix();
			this.moment(moment.unix(iNow < iValue ? iNow : iValue));
		}, this);

		this.body = null;
		this.plainRaw = '';
		this.isHtml = ko.observable(false);
		this.hasImages = ko.observable(false);
		this.attachments = ko.observableArray([]);

		this.isPgpSigned = ko.observable(false);
		this.isPgpEncrypted = ko.observable(false);
		this.pgpSignedVerifyStatus = ko.observable(Enums.SignedVerifyStatus.None);
		this.pgpSignedVerifyUser = ko.observable('');

		this.priority = ko.observable(Enums.MessagePriority.Normal);
		this.readReceipt = ko.observable('');

		this.aDraftInfo = [];
		this.sMessageId = '';
		this.sInReplyTo = '';
		this.sReferences = '';

		this.parentUid = ko.observable(0);
		this.threads = ko.observableArray([]);
		this.threadsLen = ko.observable(0);
		this.hasUnseenSubMessage = ko.observable(false);
		this.hasFlaggedSubMessage = ko.observable(false);

		this.lastInCollapsedThread = ko.observable(false);
		this.lastInCollapsedThreadLoading = ko.observable(false);

		this.threadsLenResult = ko.computed(function () {
			var iCount = this.threadsLen();
			return 0 === this.parentUid() && 0 < iCount ? iCount + 1 : '';
		}, this);
	}

	/**
	* @static
	* @param {AjaxJsonMessage} oJsonMessage
	* @return {?MessageModel}
	*/
	MessageModel.newInstanceFromJson = function (oJsonMessage)
	{
		var oMessageModel = new MessageModel();
		return oMessageModel.initByJson(oJsonMessage) ? oMessageModel : null;
	};

	/**
	* @static
	* @param {number} iTimeStampInUTC
	* @return {string}
	*/
	MessageModel.calculateFullFromatDateValue = function (iTimeStampInUTC)
	{
		return 0 < iTimeStampInUTC ? moment.unix(iTimeStampInUTC).format('LLL') : '';
	};

	/**
	* @static
	* @param {Array} aEmail
	* @param {boolean=} bFriendlyView
	* @param {boolean=} bWrapWithLink = false
	* @return {string}
	*/
	MessageModel.emailsToLine = function (aEmail, bFriendlyView, bWrapWithLink)
	{
		var
			aResult = [],
			iIndex = 0,
			iLen = 0
		;

		if (Utils.isNonEmptyArray(aEmail))
		{
			for (iIndex = 0, iLen = aEmail.length; iIndex < iLen; iIndex++)
			{
				aResult.push(aEmail[iIndex].toLine(bFriendlyView, bWrapWithLink));
			}
		}

		return aResult.join(', ');
	};

	/**
	* @static
	* @param {Array} aEmail
	* @return {string}
	*/
	MessageModel.emailsToLineClear = function (aEmail)
	{
		var
			aResult = [],
			iIndex = 0,
			iLen = 0
		;

		if (Utils.isNonEmptyArray(aEmail))
		{
			for (iIndex = 0, iLen = aEmail.length; iIndex < iLen; iIndex++)
			{
				if (aEmail[iIndex] && aEmail[iIndex].email && '' !== aEmail[iIndex].name)
				{
					aResult.push(aEmail[iIndex].email);
				}
			}
		}

		return aResult.join(', ');
	};

	/**
	* @static
	* @param {?Array} aJsonEmails
	* @return {Array.<EmailModel>}
	*/
	MessageModel.initEmailsFromJson = function (aJsonEmails)
	{
		var
			iIndex = 0,
			iLen = 0,
			oEmailModel = null,
			aResult = []
		;

		if (Utils.isNonEmptyArray(aJsonEmails))
		{
			for (iIndex = 0, iLen = aJsonEmails.length; iIndex < iLen; iIndex++)
			{
				oEmailModel = EmailModel.newInstanceFromJson(aJsonEmails[iIndex]);
				if (oEmailModel)
				{
					aResult.push(oEmailModel);
				}
			}
		}

		return aResult;
	};

	/**
	* @static
	* @param {Array.<EmailModel>} aMessageEmails
	* @param {Object} oLocalUnic
	* @param {Array} aLocalEmails
	*/
	MessageModel.replyHelper = function (aMessageEmails, oLocalUnic, aLocalEmails)
	{
	   if (aMessageEmails && 0 < aMessageEmails.length)
	   {
		   var
			   iIndex = 0,
			   iLen = aMessageEmails.length
		   ;

		   for (; iIndex < iLen; iIndex++)
		   {
			   if (Utils.isUnd(oLocalUnic[aMessageEmails[iIndex].email]))
			   {
				   oLocalUnic[aMessageEmails[iIndex].email] = true;
				   aLocalEmails.push(aMessageEmails[iIndex]);
			   }
		   }
	   }
	};

	MessageModel.prototype.clear = function ()
	{
	   this.folderFullNameRaw = '';
	   this.uid = '';
	   this.hash = '';
	   this.requestHash = '';
	   this.subject('');
	   this.subjectPrefix('');
	   this.subjectSuffix('');
	   this.size(0);
	   this.dateTimeStampInUTC(0);
	   this.priority(Enums.MessagePriority.Normal);

	   this.proxy = false;

	   this.fromEmailString('');
	   this.fromClearEmailString('');
	   this.toEmailsString('');
	   this.toClearEmailsString('');
	   this.senderEmailsString('');
	   this.senderClearEmailsString('');

	   this.emails = [];

	   this.from = [];
	   this.to = [];
	   this.cc = [];
	   this.bcc = [];
	   this.replyTo = [];
	   this.deliveredTo = [];

	   this.newForAnimation(false);

	   this.deleted(false);
	   this.unseen(false);
	   this.flagged(false);
	   this.answered(false);
	   this.forwarded(false);
	   this.isReadReceipt(false);

	   this.selected(false);
	   this.checked(false);
	   this.hasAttachments(false);
	   this.attachmentsMainType('');

	   this.body = null;
	   this.isHtml(false);
	   this.hasImages(false);
	   this.attachments([]);

	   this.isPgpSigned(false);
	   this.isPgpEncrypted(false);
	   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.None);
	   this.pgpSignedVerifyUser('');

	   this.priority(Enums.MessagePriority.Normal);
	   this.readReceipt('');
	   this.aDraftInfo = [];
	   this.sMessageId = '';
	   this.sInReplyTo = '';
	   this.sReferences = '';

	   this.parentUid(0);
	   this.threads([]);
	   this.threadsLen(0);
	   this.hasUnseenSubMessage(false);
	   this.hasFlaggedSubMessage(false);

	   this.lastInCollapsedThread(false);
	   this.lastInCollapsedThreadLoading(false);
	};

	MessageModel.prototype.computeSenderEmail = function ()
	{
		var
			Data = require('Storage:RainLoop:Data'),
			sSent = Data.sentFolder(),
			sDraft = Data.draftFolder()
		;

		this.senderEmailsString(this.folderFullNameRaw === sSent || this.folderFullNameRaw === sDraft ?
			this.toEmailsString() : this.fromEmailString());

		this.senderClearEmailsString(this.folderFullNameRaw === sSent || this.folderFullNameRaw === sDraft ?
			this.toClearEmailsString() : this.fromClearEmailString());
	};

	/**
	* @param {AjaxJsonMessage} oJsonMessage
	* @return {boolean}
	*/
	MessageModel.prototype.initByJson = function (oJsonMessage)
	{
	   var bResult = false;
	   if (oJsonMessage && 'Object/Message' === oJsonMessage['@Object'])
	   {
		   this.folderFullNameRaw = oJsonMessage.Folder;
		   this.uid = oJsonMessage.Uid;
		   this.hash = oJsonMessage.Hash;
		   this.requestHash = oJsonMessage.RequestHash;

		   this.proxy = !!oJsonMessage.ExternalProxy;

		   this.size(Utils.pInt(oJsonMessage.Size));

		   this.from = MessageModel.initEmailsFromJson(oJsonMessage.From);
		   this.to = MessageModel.initEmailsFromJson(oJsonMessage.To);
		   this.cc = MessageModel.initEmailsFromJson(oJsonMessage.Cc);
		   this.bcc = MessageModel.initEmailsFromJson(oJsonMessage.Bcc);
		   this.replyTo = MessageModel.initEmailsFromJson(oJsonMessage.ReplyTo);
		   this.deliveredTo = MessageModel.initEmailsFromJson(oJsonMessage.DeliveredTo);

		   this.subject(oJsonMessage.Subject);
		   if (Utils.isArray(oJsonMessage.SubjectParts))
		   {
			   this.subjectPrefix(oJsonMessage.SubjectParts[0]);
			   this.subjectSuffix(oJsonMessage.SubjectParts[1]);
		   }
		   else
		   {
			   this.subjectPrefix('');
			   this.subjectSuffix(this.subject());
		   }

		   this.dateTimeStampInUTC(Utils.pInt(oJsonMessage.DateTimeStampInUTC));
		   this.hasAttachments(!!oJsonMessage.HasAttachments);
		   this.attachmentsMainType(oJsonMessage.AttachmentsMainType);

		   this.fromEmailString(MessageModel.emailsToLine(this.from, true));
		   this.fromClearEmailString(MessageModel.emailsToLineClear(this.from));
		   this.toEmailsString(MessageModel.emailsToLine(this.to, true));
		   this.toClearEmailsString(MessageModel.emailsToLineClear(this.to));

		   this.parentUid(Utils.pInt(oJsonMessage.ParentThread));
		   this.threads(Utils.isArray(oJsonMessage.Threads) ? oJsonMessage.Threads : []);
		   this.threadsLen(Utils.pInt(oJsonMessage.ThreadsLen));

		   this.initFlagsByJson(oJsonMessage);
		   this.computeSenderEmail();

		   bResult = true;
	   }

	   return bResult;
	};

	/**
	* @param {AjaxJsonMessage} oJsonMessage
	* @return {boolean}
	*/
	MessageModel.prototype.initUpdateByMessageJson = function (oJsonMessage)
	{
	   var
		   Data = require('Storage:RainLoop:Data'),
		   bResult = false,
		   iPriority = Enums.MessagePriority.Normal
	   ;

	   if (oJsonMessage && 'Object/Message' === oJsonMessage['@Object'])
	   {
		   iPriority = Utils.pInt(oJsonMessage.Priority);
		   this.priority(-1 < Utils.inArray(iPriority, [Enums.MessagePriority.High, Enums.MessagePriority.Low]) ?
			   iPriority : Enums.MessagePriority.Normal);

		   this.aDraftInfo = oJsonMessage.DraftInfo;

		   this.sMessageId = oJsonMessage.MessageId;
		   this.sInReplyTo = oJsonMessage.InReplyTo;
		   this.sReferences = oJsonMessage.References;

		   this.proxy = !!oJsonMessage.ExternalProxy;

		   if (Data.capaOpenPGP())
		   {
			   this.isPgpSigned(!!oJsonMessage.PgpSigned);
			   this.isPgpEncrypted(!!oJsonMessage.PgpEncrypted);
		   }

		   this.hasAttachments(!!oJsonMessage.HasAttachments);
		   this.attachmentsMainType(oJsonMessage.AttachmentsMainType);

		   this.foundedCIDs = Utils.isArray(oJsonMessage.FoundedCIDs) ? oJsonMessage.FoundedCIDs : [];
		   this.attachments(this.initAttachmentsFromJson(oJsonMessage.Attachments));

		   this.readReceipt(oJsonMessage.ReadReceipt || '');

		   this.computeSenderEmail();

		   bResult = true;
	   }

	   return bResult;
	};

	/**
	* @param {(AjaxJsonAttachment|null)} oJsonAttachments
	* @return {Array}
	*/
	MessageModel.prototype.initAttachmentsFromJson = function (oJsonAttachments)
	{
	   var
		   iIndex = 0,
		   iLen = 0,
		   oAttachmentModel = null,
		   aResult = []
	   ;

	   if (oJsonAttachments && 'Collection/AttachmentCollection' === oJsonAttachments['@Object'] &&
		   Utils.isNonEmptyArray(oJsonAttachments['@Collection']))
	   {
		   for (iIndex = 0, iLen = oJsonAttachments['@Collection'].length; iIndex < iLen; iIndex++)
		   {
			   oAttachmentModel = AttachmentModel.newInstanceFromJson(oJsonAttachments['@Collection'][iIndex]);
			   if (oAttachmentModel)
			   {
				   if ('' !== oAttachmentModel.cidWithOutTags && 0 < this.foundedCIDs.length &&
					   0 <= Utils.inArray(oAttachmentModel.cidWithOutTags, this.foundedCIDs))
				   {
					   oAttachmentModel.isLinked = true;
				   }

				   aResult.push(oAttachmentModel);
			   }
		   }
	   }

	   return aResult;
	};

	/**
	* @param {AjaxJsonMessage} oJsonMessage
	* @return {boolean}
	*/
	MessageModel.prototype.initFlagsByJson = function (oJsonMessage)
	{
	   var bResult = false;

	   if (oJsonMessage && 'Object/Message' === oJsonMessage['@Object'])
	   {
		   this.unseen(!oJsonMessage.IsSeen);
		   this.flagged(!!oJsonMessage.IsFlagged);
		   this.answered(!!oJsonMessage.IsAnswered);
		   this.forwarded(!!oJsonMessage.IsForwarded);
		   this.isReadReceipt(!!oJsonMessage.IsReadReceipt);

		   bResult = true;
	   }

	   return bResult;
	};

	/**
	* @param {boolean} bFriendlyView
	* @param {boolean=} bWrapWithLink = false
	* @return {string}
	*/
	MessageModel.prototype.fromToLine = function (bFriendlyView, bWrapWithLink)
	{
	   return MessageModel.emailsToLine(this.from, bFriendlyView, bWrapWithLink);
	};

	/**
	* @param {boolean} bFriendlyView
	* @param {boolean=} bWrapWithLink = false
	* @return {string}
	*/
	MessageModel.prototype.toToLine = function (bFriendlyView, bWrapWithLink)
	{
	   return MessageModel.emailsToLine(this.to, bFriendlyView, bWrapWithLink);
	};

	/**
	* @param {boolean} bFriendlyView
	* @param {boolean=} bWrapWithLink = false
	* @return {string}
	*/
	MessageModel.prototype.ccToLine = function (bFriendlyView, bWrapWithLink)
	{
	   return MessageModel.emailsToLine(this.cc, bFriendlyView, bWrapWithLink);
	};

	/**
	* @param {boolean} bFriendlyView
	* @param {boolean=} bWrapWithLink = false
	* @return {string}
	*/
	MessageModel.prototype.bccToLine = function (bFriendlyView, bWrapWithLink)
	{
	   return MessageModel.emailsToLine(this.bcc, bFriendlyView, bWrapWithLink);
	};

	/**
	* @return string
	*/
	MessageModel.prototype.lineAsCcc = function ()
	{
	   var aResult = [];
	   if (this.deleted())
	   {
		   aResult.push('deleted');
	   }
	   if (this.selected())
	   {
		   aResult.push('selected');
	   }
	   if (this.checked())
	   {
		   aResult.push('checked');
	   }
	   if (this.flagged())
	   {
		   aResult.push('flagged');
	   }
	   if (this.unseen())
	   {
		   aResult.push('unseen');
	   }
	   if (this.answered())
	   {
		   aResult.push('answered');
	   }
	   if (this.forwarded())
	   {
		   aResult.push('forwarded');
	   }
	   if (this.focused())
	   {
		   aResult.push('focused');
	   }
	   if (this.hasAttachments())
	   {
		   aResult.push('withAttachments');
		   switch (this.attachmentsMainType())
		   {
			   case 'image':
				   aResult.push('imageOnlyAttachments');
				   break;
			   case 'archive':
				   aResult.push('archiveOnlyAttachments');
				   break;
		   }
	   }
	   if (this.newForAnimation())
	   {
		   aResult.push('new');
	   }
	   if ('' === this.subject())
	   {
		   aResult.push('emptySubject');
	   }
	   if (0 < this.parentUid())
	   {
		   aResult.push('hasParentMessage');
	   }
	   if (0 < this.threadsLen() && 0 === this.parentUid())
	   {
		   aResult.push('hasChildrenMessage');
	   }
	   if (this.hasUnseenSubMessage())
	   {
		   aResult.push('hasUnseenSubMessage');
	   }
	   if (this.hasFlaggedSubMessage())
	   {
		   aResult.push('hasFlaggedSubMessage');
	   }

	   return aResult.join(' ');
	};

	/**
	* @return {boolean}
	*/
	MessageModel.prototype.hasVisibleAttachments = function ()
	{
	   return !!_.find(this.attachments(), function (oAttachment) {
		   return !oAttachment.isLinked;
	   });
	};

	/**
	* @param {string} sCid
	* @return {*}
	*/
	MessageModel.prototype.findAttachmentByCid = function (sCid)
	{
	   var
		   oResult = null,
		   aAttachments = this.attachments()
	   ;

	   if (Utils.isNonEmptyArray(aAttachments))
	   {
		   sCid = sCid.replace(/^<+/, '').replace(/>+$/, '');
		   oResult = _.find(aAttachments, function (oAttachment) {
			   return sCid === oAttachment.cidWithOutTags;
		   });
	   }

	   return oResult || null;
	};

	/**
	* @param {string} sContentLocation
	* @return {*}
	*/
	MessageModel.prototype.findAttachmentByContentLocation = function (sContentLocation)
	{
	   var
		   oResult = null,
		   aAttachments = this.attachments()
	   ;

	   if (Utils.isNonEmptyArray(aAttachments))
	   {
		   oResult = _.find(aAttachments, function (oAttachment) {
			   return sContentLocation === oAttachment.contentLocation;
		   });
	   }

	   return oResult || null;
	};


	/**
	* @return {string}
	*/
	MessageModel.prototype.messageId = function ()
	{
	   return this.sMessageId;
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.inReplyTo = function ()
	{
	   return this.sInReplyTo;
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.references = function ()
	{
	   return this.sReferences;
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.fromAsSingleEmail = function ()
	{
	   return Utils.isArray(this.from) && this.from[0] ? this.from[0].email : '';
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.viewLink = function ()
	{
	   return LinkBuilder.messageViewLink(this.requestHash);
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.downloadLink = function ()
	{
	   return LinkBuilder.messageDownloadLink(this.requestHash);
	};

	/**
	* @param {Object} oExcludeEmails
	* @return {Array}
	*/
	MessageModel.prototype.replyEmails = function (oExcludeEmails)
	{
	   var
		   aResult = [],
		   oUnic = Utils.isUnd(oExcludeEmails) ? {} : oExcludeEmails
	   ;

	   MessageModel.replyHelper(this.replyTo, oUnic, aResult);
	   if (0 === aResult.length)
	   {
		   MessageModel.replyHelper(this.from, oUnic, aResult);
	   }

	   return aResult;
	};

	/**
	* @param {Object} oExcludeEmails
	* @return {Array.<Array>}
	*/
	MessageModel.prototype.replyAllEmails = function (oExcludeEmails)
	{
	   var
		   aToResult = [],
		   aCcResult = [],
		   oUnic = Utils.isUnd(oExcludeEmails) ? {} : oExcludeEmails
	   ;

	   MessageModel.replyHelper(this.replyTo, oUnic, aToResult);
	   if (0 === aToResult.length)
	   {
		   MessageModel.replyHelper(this.from, oUnic, aToResult);
	   }

	   MessageModel.replyHelper(this.to, oUnic, aToResult);
	   MessageModel.replyHelper(this.cc, oUnic, aCcResult);

	   return [aToResult, aCcResult];
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.textBodyToString = function ()
	{
	   return this.body ? this.body.html() : '';
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.attachmentsToStringLine = function ()
	{
	   var aAttachLines = _.map(this.attachments(), function (oItem) {
		   return oItem.fileName + ' (' + oItem.friendlySize + ')';
	   });

	   return aAttachLines && 0 < aAttachLines.length ? aAttachLines.join(', ') : '';
	};

	/**
	* @return {Object}
	*/
	MessageModel.prototype.getDataForWindowPopup = function ()
	{
	   return {
		   'popupFrom': this.fromToLine(false),
		   'popupTo': this.toToLine(false),
		   'popupCc': this.ccToLine(false),
		   'popupBcc': this.bccToLine(false),
		   'popupSubject': this.subject(),
		   'popupDate': this.fullFormatDateValue(),
		   'popupAttachments': this.attachmentsToStringLine(),
		   'popupBody': this.textBodyToString()
	   };
	};

	/**
	* @param {boolean=} bPrint = false
	*/
	MessageModel.prototype.viewPopupMessage = function (bPrint)
	{
	   Utils.windowPopupKnockout(this.getDataForWindowPopup(), 'PopupsWindowSimpleMessage', this.subject(), function (oPopupWin) {
		   if (oPopupWin && oPopupWin.document && oPopupWin.document.body)
		   {
			   $('img.lazy', oPopupWin.document.body).each(function (iIndex, oImg) {

				   var
					   $oImg = $(oImg),
					   sOrig = $oImg.data('original'),
					   sSrc = $oImg.attr('src')
				   ;

				   if (0 <= iIndex && sOrig && !sSrc)
				   {
					   $oImg.attr('src', sOrig);
				   }
			   });

			   if (bPrint)
			   {
				   window.setTimeout(function () {
					   oPopupWin.print();
				   }, 100);
			   }
		   }
	   });
	};

	MessageModel.prototype.printMessage = function ()
	{
	   this.viewPopupMessage(true);
	};

	/**
	* @returns {string}
	*/
	MessageModel.prototype.generateUid = function ()
	{
	   return this.folderFullNameRaw + '/' + this.uid;
	};

	/**
	* @param {MessageModel} oMessage
	* @return {MessageModel}
	*/
	MessageModel.prototype.populateByMessageListItem = function (oMessage)
	{
	   this.folderFullNameRaw = oMessage.folderFullNameRaw;
	   this.uid = oMessage.uid;
	   this.hash = oMessage.hash;
	   this.requestHash = oMessage.requestHash;
	   this.subject(oMessage.subject());
	   this.subjectPrefix(this.subjectPrefix());
	   this.subjectSuffix(this.subjectSuffix());

	   this.size(oMessage.size());
	   this.dateTimeStampInUTC(oMessage.dateTimeStampInUTC());
	   this.priority(oMessage.priority());

	   this.proxy = oMessage.proxy;

	   this.fromEmailString(oMessage.fromEmailString());
	   this.fromClearEmailString(oMessage.fromClearEmailString());
	   this.toEmailsString(oMessage.toEmailsString());
	   this.toClearEmailsString(oMessage.toClearEmailsString());

	   this.emails = oMessage.emails;

	   this.from = oMessage.from;
	   this.to = oMessage.to;
	   this.cc = oMessage.cc;
	   this.bcc = oMessage.bcc;
	   this.replyTo = oMessage.replyTo;
	   this.deliveredTo = oMessage.deliveredTo;

	   this.unseen(oMessage.unseen());
	   this.flagged(oMessage.flagged());
	   this.answered(oMessage.answered());
	   this.forwarded(oMessage.forwarded());
	   this.isReadReceipt(oMessage.isReadReceipt());

	   this.selected(oMessage.selected());
	   this.checked(oMessage.checked());
	   this.hasAttachments(oMessage.hasAttachments());
	   this.attachmentsMainType(oMessage.attachmentsMainType());

	   this.moment(oMessage.moment());

	   this.body = null;

	   this.priority(Enums.MessagePriority.Normal);
	   this.aDraftInfo = [];
	   this.sMessageId = '';
	   this.sInReplyTo = '';
	   this.sReferences = '';

	   this.parentUid(oMessage.parentUid());
	   this.threads(oMessage.threads());
	   this.threadsLen(oMessage.threadsLen());

	   this.computeSenderEmail();

	   return this;
	};

	MessageModel.prototype.showExternalImages = function (bLazy)
	{
	   if (this.body && this.body.data('rl-has-images'))
	   {
		   var sAttr = '';
		   bLazy = Utils.isUnd(bLazy) ? false : bLazy;

		   this.hasImages(false);
		   this.body.data('rl-has-images', false);

		   sAttr = this.proxy ? 'data-x-additional-src' : 'data-x-src';
		   $('[' + sAttr + ']', this.body).each(function () {
			   if (bLazy && $(this).is('img'))
			   {
				   $(this)
					   .addClass('lazy')
					   .attr('data-original', $(this).attr(sAttr))
					   .removeAttr(sAttr)
				   ;
			   }
			   else
			   {
				   $(this).attr('src', $(this).attr(sAttr)).removeAttr(sAttr);
			   }
		   });

		   sAttr = this.proxy ? 'data-x-additional-style-url' : 'data-x-style-url';
		   $('[' + sAttr + ']', this.body).each(function () {
			   var sStyle = Utils.trim($(this).attr('style'));
			   sStyle = '' === sStyle ? '' : (';' === sStyle.substr(-1) ? sStyle + ' ' : sStyle + '; ');
			   $(this).attr('style', sStyle + $(this).attr(sAttr)).removeAttr(sAttr);
		   });

		   if (bLazy)
		   {
			   $('img.lazy', this.body).addClass('lazy-inited').lazyload({
				   'threshold' : 400,
				   'effect' : 'fadeIn',
				   'skip_invisible' : false,
				   'container': $('.RL-MailMessageView .messageView .messageItem .content')[0]
			   });

			   $win.resize();
		   }

		   Utils.windowResize(500);
	   }
	};

	MessageModel.prototype.showInternalImages = function (bLazy)
	{
	   if (this.body && !this.body.data('rl-init-internal-images'))
	   {
		   this.body.data('rl-init-internal-images', true);

		   bLazy = Utils.isUnd(bLazy) ? false : bLazy;

		   var self = this;

		   $('[data-x-src-cid]', this.body).each(function () {

			   var oAttachment = self.findAttachmentByCid($(this).attr('data-x-src-cid'));
			   if (oAttachment && oAttachment.download)
			   {
				   if (bLazy && $(this).is('img'))
				   {
					   $(this)
						   .addClass('lazy')
						   .attr('data-original', oAttachment.linkPreview());
				   }
				   else
				   {
					   $(this).attr('src', oAttachment.linkPreview());
				   }
			   }
		   });

		   $('[data-x-src-location]', this.body).each(function () {

			   var oAttachment = self.findAttachmentByContentLocation($(this).attr('data-x-src-location'));
			   if (!oAttachment)
			   {
				   oAttachment = self.findAttachmentByCid($(this).attr('data-x-src-location'));
			   }

			   if (oAttachment && oAttachment.download)
			   {
				   if (bLazy && $(this).is('img'))
				   {
					   $(this)
						   .addClass('lazy')
						   .attr('data-original', oAttachment.linkPreview());
				   }
				   else
				   {
					   $(this).attr('src', oAttachment.linkPreview());
				   }
			   }
		   });

		   $('[data-x-style-cid]', this.body).each(function () {

			   var
				   sStyle = '',
				   sName = '',
				   oAttachment = self.findAttachmentByCid($(this).attr('data-x-style-cid'))
			   ;

			   if (oAttachment && oAttachment.linkPreview)
			   {
				   sName = $(this).attr('data-x-style-cid-name');
				   if ('' !== sName)
				   {
					   sStyle = Utils.trim($(this).attr('style'));
					   sStyle = '' === sStyle ? '' : (';' === sStyle.substr(-1) ? sStyle + ' ' : sStyle + '; ');
					   $(this).attr('style', sStyle + sName + ': url(\'' + oAttachment.linkPreview() + '\')');
				   }
			   }
		   });

		   if (bLazy)
		   {
			   (function ($oImg, oContainer) {
				   _.delay(function () {
					   $oImg.addClass('lazy-inited').lazyload({
						   'threshold' : 400,
						   'effect' : 'fadeIn',
						   'skip_invisible' : false,
						   'container': oContainer
					   });
				   }, 300);
			   }($('img.lazy', self.body), $('.RL-MailMessageView .messageView .messageItem .content')[0]));
		   }

		   Utils.windowResize(500);
	   }
	};

	MessageModel.prototype.storeDataToDom = function ()
	{
	   if (this.body)
	   {
		   this.body.data('rl-is-html', !!this.isHtml());
		   this.body.data('rl-has-images', !!this.hasImages());

		   this.body.data('rl-plain-raw', this.plainRaw);

		   var Data = require('Storage:RainLoop:Data');
		   if (Data.capaOpenPGP())
		   {
			   this.body.data('rl-plain-pgp-signed', !!this.isPgpSigned());
			   this.body.data('rl-plain-pgp-encrypted', !!this.isPgpEncrypted());
			   this.body.data('rl-pgp-verify-status', this.pgpSignedVerifyStatus());
			   this.body.data('rl-pgp-verify-user', this.pgpSignedVerifyUser());
		   }
	   }
	};

	MessageModel.prototype.storePgpVerifyDataToDom = function ()
	{
		var Data = require('Storage:RainLoop:Data');
		if (this.body && Data.capaOpenPGP())
		{
			this.body.data('rl-pgp-verify-status', this.pgpSignedVerifyStatus());
			this.body.data('rl-pgp-verify-user', this.pgpSignedVerifyUser());
		}
	};

	MessageModel.prototype.fetchDataToDom = function ()
	{
		if (this.body)
		{
			this.isHtml(!!this.body.data('rl-is-html'));
			this.hasImages(!!this.body.data('rl-has-images'));

			this.plainRaw = Utils.pString(this.body.data('rl-plain-raw'));

			var Data = require('Storage:RainLoop:Data');
			if (Data.capaOpenPGP())
			{
				this.isPgpSigned(!!this.body.data('rl-plain-pgp-signed'));
				this.isPgpEncrypted(!!this.body.data('rl-plain-pgp-encrypted'));
				this.pgpSignedVerifyStatus(this.body.data('rl-pgp-verify-status'));
				this.pgpSignedVerifyUser(this.body.data('rl-pgp-verify-user'));
			}
			else
			{
				this.isPgpSigned(false);
				this.isPgpEncrypted(false);
				this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.None);
				this.pgpSignedVerifyUser('');
			}
		}
	};

	MessageModel.prototype.verifyPgpSignedClearMessage = function ()
	{
	   if (this.isPgpSigned())
	   {
		   var
			   aRes = [],
			   mPgpMessage = null,
			   Data = require('Storage:RainLoop:Data'),
			   sFrom = this.from && this.from[0] && this.from[0].email ? this.from[0].email : '',
			   aPublicKeys = Data.findPublicKeysByEmail(sFrom),
			   oValidKey = null,
			   oValidSysKey = null,
			   sPlain = ''
		   ;

		   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.Error);
		   this.pgpSignedVerifyUser('');

		   try
		   {
			   mPgpMessage = window.openpgp.cleartext.readArmored(this.plainRaw);
			   if (mPgpMessage && mPgpMessage.getText)
			   {
				   this.pgpSignedVerifyStatus(
					   aPublicKeys.length ? Enums.SignedVerifyStatus.Unverified : Enums.SignedVerifyStatus.UnknownPublicKeys);

				   aRes = mPgpMessage.verify(aPublicKeys);
				   if (aRes && 0 < aRes.length)
				   {
					   oValidKey = _.find(aRes, function (oItem) {
						   return oItem && oItem.keyid && oItem.valid;
					   });

					   if (oValidKey)
					   {
						   oValidSysKey = Data.findPublicKeyByHex(oValidKey.keyid.toHex());
						   if (oValidSysKey)
						   {
							   sPlain = mPgpMessage.getText();

							   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.Success);
							   this.pgpSignedVerifyUser(oValidSysKey.user);

							   sPlain =
								   $div.empty().append(
									   $('<pre class="b-plain-openpgp signed verified"></pre>').text(sPlain)
								   ).html()
							   ;

							   $div.empty();

							   this.replacePlaneTextBody(sPlain);
						   }
					   }
				   }
			   }
		   }
		   catch (oExc) {}

		   this.storePgpVerifyDataToDom();
	   }
	};

	MessageModel.prototype.decryptPgpEncryptedMessage = function (sPassword)
	{
	   if (this.isPgpEncrypted())
	   {
		   var
			   aRes = [],
			   mPgpMessage = null,
			   mPgpMessageDecrypted = null,
			   Data = require('Storage:RainLoop:Data'),
			   sFrom = this.from && this.from[0] && this.from[0].email ? this.from[0].email : '',
			   aPublicKey = Data.findPublicKeysByEmail(sFrom),
			   oPrivateKey = Data.findSelfPrivateKey(sPassword),
			   oValidKey = null,
			   oValidSysKey = null,
			   sPlain = ''
		   ;

		   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.Error);
		   this.pgpSignedVerifyUser('');

		   if (!oPrivateKey)
		   {
			   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.UnknownPrivateKey);
		   }

		   try
		   {
			   mPgpMessage = window.openpgp.message.readArmored(this.plainRaw);
			   if (mPgpMessage && oPrivateKey && mPgpMessage.decrypt)
			   {
				   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.Unverified);

				   mPgpMessageDecrypted = mPgpMessage.decrypt(oPrivateKey);
				   if (mPgpMessageDecrypted)
				   {
					   aRes = mPgpMessageDecrypted.verify(aPublicKey);
					   if (aRes && 0 < aRes.length)
					   {
						   oValidKey = _.find(aRes, function (oItem) {
							   return oItem && oItem.keyid && oItem.valid;
						   });

						   if (oValidKey)
						   {
							   oValidSysKey = Data.findPublicKeyByHex(oValidKey.keyid.toHex());
							   if (oValidSysKey)
							   {
								   this.pgpSignedVerifyStatus(Enums.SignedVerifyStatus.Success);
								   this.pgpSignedVerifyUser(oValidSysKey.user);
							   }
						   }
					   }

					   sPlain = mPgpMessageDecrypted.getText();

					   sPlain =
						   $div.empty().append(
							   $('<pre class="b-plain-openpgp signed verified"></pre>').text(sPlain)
						   ).html()
					   ;

					   $div.empty();

					   this.replacePlaneTextBody(sPlain);
				   }
			   }
		   }
		   catch (oExc) {}

		   this.storePgpVerifyDataToDom();
	   }
	};

	MessageModel.prototype.replacePlaneTextBody = function (sPlain)
	{
	   if (this.body)
	   {
		   this.body.html(sPlain).addClass('b-text-part plain');
	   }
	};

	/**
	* @return {string}
	*/
	MessageModel.prototype.flagHash = function ()
	{
	   return [this.deleted(), this.unseen(), this.flagged(), this.answered(), this.forwarded(),
		   this.isReadReceipt()].join('');
	};

	module.exports = MessageModel;

}(module, require));