(function () {

	'use strict';

	var
		_ = require('_'),
		ko = require('ko'),

		Utils = require('Common/Utils'),

		PgpStore = require('Stores/User/Pgp'),

		kn = require('Knoin/Knoin'),
		AbstractView = require('Knoin/AbstractView')
	;

	/**
	 * @constructor
	 * @extends AbstractView
	 */
	function AddOpenPgpKeyPopupView()
	{
		AbstractView.call(this, 'Popups', 'PopupsAddOpenPgpKey');

		this.key = ko.observable('');
		this.key.error = ko.observable(false);
		this.key.focus = ko.observable(false);

		this.key.subscribe(function () {
			this.key.error(false);
		}, this);

		this.addOpenPgpKeyCommand = Utils.createCommand(this, function () {

			var
				iCount = 30,
				aMatch = null,
				sKey = Utils.trim(this.key()),
				oReg = /[\-]{3,6}BEGIN[\s]PGP[\s](PRIVATE|PUBLIC)[\s]KEY[\s]BLOCK[\-]{3,6}[\s\S]+?[\-]{3,6}END[\s]PGP[\s](PRIVATE|PUBLIC)[\s]KEY[\s]BLOCK[\-]{3,6}/gi,
				oOpenpgpKeyring = PgpStore.openpgpKeyring
			;

			sKey = sKey.replace(/[\r\n]([a-zA-Z0-9]{2,}:[^\r\n]+)[\r\n]+([a-zA-Z0-9\/\\+=]{10,})/g, '\n$1!-!N!-!$2')
				.replace(/[\n\r]+/g, '\n').replace(/!-!N!-!/g, '\n\n');

			this.key.error('' === sKey);

			if (!oOpenpgpKeyring || this.key.error())
			{
				return false;
			}

			do
			{
				aMatch = oReg.exec(sKey);
				if (!aMatch || 0 > iCount)
				{
					break;
				}

				if (aMatch[0] && aMatch[1] && aMatch[2] && aMatch[1] === aMatch[2])
				{
					if ('PRIVATE' === aMatch[1])
					{
						oOpenpgpKeyring.privateKeys.importKey(aMatch[0]);
					}
					else if ('PUBLIC' === aMatch[1])
					{
						oOpenpgpKeyring.publicKeys.importKey(aMatch[0]);
					}
				}

				iCount--;
			}
			while (true);

			oOpenpgpKeyring.store();

			require('App/User').reloadOpenPgpKeys();
			Utils.delegateRun(this, 'cancelCommand');

			return true;
		});

		kn.constructorEnd(this);
	}

	kn.extendAsViewModel(['View/Popup/AddOpenPgpKey', 'PopupsAddOpenPgpKeyViewModel'], AddOpenPgpKeyPopupView);
	_.extend(AddOpenPgpKeyPopupView.prototype, AbstractView.prototype);

	AddOpenPgpKeyPopupView.prototype.clearPopup = function ()
	{
		this.key('');
		this.key.error(false);
	};

	AddOpenPgpKeyPopupView.prototype.onShow = function ()
	{
		this.clearPopup();
	};

	AddOpenPgpKeyPopupView.prototype.onFocus = function ()
	{
		this.key.focus(true);
	};

	module.exports = AddOpenPgpKeyPopupView;

}());