/**
 * @package     Solo
 * @copyright Copyright (c)2014-2018 Nicholas K. Dionysopoulos / Akeeba Ltd
 * @license     GNU GPL version 3 or later
 */

if (typeof akeeba === 'undefined')
{
	var akeeba = {};
}

if (typeof akeeba.Setup === 'undefined')
{
	akeeba.Setup              = {};
	akeeba.Setup.translations = {};
	akeeba.Setup.URLs         = {};
	akeeba.Setup.FtpBrowser   = {
		params: {}
	};
	akeeba.Setup.SftpBrowser  = {
		params: {}
	};
	akeeba.Setup.FtpTest      = {};
	akeeba.Setup.SftpTest     = {};
}

akeeba.Setup.onFsDriverClick = function (e)
{
	var driver       = document.getElementById('fs_driver').value;
	var elFtpOptions = document.getElementById('ftp_options');

	if ((driver === 'ftp') || (driver === 'sftp'))
	{
		elFtpOptions.style.display = 'block';
	}
	else
	{
		elFtpOptions.style.display = 'none';
	}
};

akeeba.Setup.init = function ()
{
	akeeba.System.addEventListener(document.getElementById('fs_driver'), 'change', akeeba.Setup.onFsDriverClick);

	this.onFsDriverClick();
};

/**
 * FTP browser callback, used to set the FTP root directory in an element
 *
 * @param  path  The path returned by the browser
 */
akeeba.Setup.FtpBrowser.callback = function (path)
{
	var charlist = ('/').replace(/([\[\]\(\)\.\?\/\*\{\}\+\$\^\:])/g, '$1');
	var re       = new RegExp('^[' + charlist + ']+', 'g');
	path         = '/' + (path + '').replace(re, '');

	document.getElementById(akeeba.Setup.FtpBrowser.params.key).value = path;
};

/**
 * Initialises an FTP folder browser
 *
 * @param  key        The id of the field holding the FTP directory we're outputting
 * @param  paramsKey  The key prefix of the fields holding FTP connection information
 */
akeeba.Setup.FtpBrowser.initialise = function (key, paramsKey)
{
	akeeba.Setup.FtpBrowser.params.host      = document.getElementById(paramsKey + '_host').value;
	akeeba.Setup.FtpBrowser.params.port      = document.getElementById(paramsKey + '_port').value;
	akeeba.Setup.FtpBrowser.params.username  = document.getElementById(paramsKey + '_username').value;
	akeeba.Setup.FtpBrowser.params.password  = document.getElementById(paramsKey + '_password').value;
	akeeba.Setup.FtpBrowser.params.passive   = true;
	akeeba.Setup.FtpBrowser.params.ssl       = false;
	akeeba.Setup.FtpBrowser.params.directory = document.getElementById(paramsKey + '_directory').value;

	akeeba.Setup.FtpBrowser.params.key = key;

	akeeba.Setup.FtpBrowser.open();
};

/**
 * Opens the FTP directory browser
 */
akeeba.Setup.FtpBrowser.open = function ()
{
	var ftp_dialog_element = document.getElementById('ftpdialog');

	ftp_dialog_element.style.display = 'block';

	akeeba.System.addEventListener('ftpdialogOkButton', 'click', function (e)
	{
		akeeba.Setup.FtpBrowser.callback(akeeba.Setup.FtpBrowser.params.directory);

		if ((typeof akeeba.Setup.FtpBrowser.Modal === 'object') && akeeba.Setup.FtpBrowser.Modal.close)
		{
			akeeba.Setup.FtpBrowser.Modal.close();
		}
	});

	akeeba.System.addEventListener(document.getElementById('ftpdialogCancelButton'), 'click', function (e)
	{
		if ((typeof akeeba.Setup.FtpBrowser.Modal === 'object') && akeeba.Setup.FtpBrowser.Modal.close)
		{
			akeeba.Setup.FtpBrowser.Modal.close();
		}
	});

	akeeba.Setup.FtpBrowser.Modal = akeeba.Modal.open({
		inherit: ftp_dialog_element,
		width:   '80%'
	});

	document.getElementById('ftpBrowserErrorContainer').style.display = 'none';
	document.getElementById('ftpBrowserFolderList').innerHTML         = '';
	document.getElementById('ftpBrowserCrumbs').innerHTML             = '';

	// URL to load the browser
	akeeba.System.params.AjaxURL = akeeba.Setup.URLs.ftpBrowser;

	if (empty(akeeba.Setup.FtpBrowser.params.directory))
	{
		akeeba.Setup.FtpBrowser.params.directory = '';
	}

	var data = {
		'host':      akeeba.Setup.FtpBrowser.params.host,
		'port':      akeeba.Setup.FtpBrowser.params.port,
		'username':  akeeba.Setup.FtpBrowser.params.username,
		'password':  akeeba.Setup.FtpBrowser.params.password,
		'passive':   (akeeba.Setup.FtpBrowser.params.passive ? 1 : 0),
		'ssl':       (akeeba.Setup.FtpBrowser.params.ssl ? 1 : 0),
		'directory': akeeba.Setup.FtpBrowser.params.directory
	};

	// Do AJAX call & Render results
	akeeba.System.doAjax(
		data,
		function (data)
		{
			var elBreadCrumbs          = document.getElementById('ak_crumbs2');
			var elFTPBrowserFolderList = document.getElementById('ftpBrowserFolderList');

			elFTPBrowserFolderList.style.display = 'none';
			elBreadCrumbs.style.display          = 'none';

			if (data.error !== false)
			{
				// An error occured
				document.getElementById('ftpBrowserError').innerHTML              = data.error;
				document.getElementById('ftpBrowserErrorContainer').style.display = 'block';

				return;
			}

			// Create the interface
			document.getElementById('ftpBrowserErrorContainer').style.display = 'none';

			// Display the crumbs
			if (!empty(data.breadcrumbs))
			{
				elBreadCrumbs.style.display = 'block';
				elBreadCrumbs.innerHTML     = '';
				var relativePath            = '/';

				akeeba.Setup.FtpBrowser.addCrumb(akeeba.Setup.translations['UI-ROOT'], '/', elBreadCrumbs);

				for (i = 0; i < data.breadcrumbs.length; i++)
				{
					var crumb = data.breadcrumbs[i];

					relativePath += '/' + crumb;

					akeeba.Setup.FtpBrowser.addCrumb(crumb, relativePath, elBreadCrumbs);
				}
			}

			// Display the list of directories
			if (!empty(data.list))
			{
				elFTPBrowserFolderList.style.display = 'block';

				/**
				 * If the directory in the browser is empty, let's inject it with the parent dir, otherwise if the
				 * user immediately clicks on "Use" gets a wrong path.
				 */
				if (!akeeba.Setup.FtpBrowser.params.directory)
				{
					akeeba.Setup.FtpBrowser.params.directory = data.directory;
				}

				for (i = 0; i < data.list.length; i++)
				{
					var item = data.list[i];

					akeeba.Setup.FtpBrowser.createLink(data.directory + '/' + item, item, elFTPBrowserFolderList);
				}
			}
		},
		function (message)
		{
			document.getElementById('ftpBrowserError').innerHTML              = message;
			document.getElementById('ftpBrowserErrorContainer').style.display = 'block';
			document.getElementById('ftpBrowserFolderList').style.display     = 'none';
			document.getElementById('ftpBrowserCrumbs').style.display         = 'none';
		},
		false
	);
};

/**
 * Creates a directory link for the FTP browser UI
 *
 * @param  path       The directory to link to
 * @param  label      How to display it
 * @param  container  The containing element
 * @param  ftpObject  FTP configuration information
 */
akeeba.Setup.FtpBrowser.createLink = function (path, label, container, ftpObject)
{
	if (typeof ftpObject === 'undefined')
	{
		ftpObject = akeeba.Setup.FtpBrowser;
	}

	var row  = document.createElement('tr');
	var cell = document.createElement('td');
	row.appendChild(cell);

	var myElement       = document.createElement('a');
	myElement.innerText = label;
	akeeba.System.addEventListener(myElement, 'click', function (e)
	{
		ftpObject.params.directory = path;
		ftpObject.open();
	});
	cell.appendChild(myElement);

	container.appendChild(row);
};

/**
 * Adds a breadcrumb to the FTP browser
 *
 * @param  crumb         How to display it
 * @param  relativePath  The relative path to the current directory
 * @param  container     The containing element
 * @param  ftpObject  FTP configuration information
 */
akeeba.Setup.FtpBrowser.addCrumb = function (crumb, relativePath, container, ftpObject)
{
	if (typeof ftpObject == 'undefined')
	{
		ftpObject = akeeba.Setup.FtpBrowser;
	}

	var li = document.createElement('li');

	var myLink       = document.createElement('a');
	myLink.innerHTML = crumb;

	akeeba.System.addEventListener(myLink, 'click', function (e)
	{
		ftpObject.params.directory = relativePath;
		ftpObject.open();

		if (e.preventDefault)
		{
			e.preventDefault();
		}
		else
		{
			e.returnValue = false;
		}
	});

	li.appendChild(myLink);
	container.appendChild(li);
};

/**
 * Initialises an SFTP folder browser
 *
 * @param  key        The Akeeba Engine configuration key of the field holding the SFTP directory we're outputting
 * @param  paramsKey  The Akeeba Engine configuration key prefix of the fields holding SFTP connection information
 */
akeeba.Setup.SftpBrowser.initialise = function (key, paramsKey)
{
	akeeba.Setup.SftpBrowser.params.host      = document.getElementById(paramsKey + '_host').value;
	akeeba.Setup.SftpBrowser.params.port      = document.getElementById(paramsKey + '_port').value;
	akeeba.Setup.SftpBrowser.params.username  = document.getElementById(paramsKey + '_username').value;
	akeeba.Setup.SftpBrowser.params.password  = document.getElementById(paramsKey + '_password').value;
	akeeba.Setup.SftpBrowser.params.directory = document.getElementById(paramsKey + '_directory').value;
	akeeba.Setup.SftpBrowser.params.privKey   = '';
	akeeba.Setup.SftpBrowser.params.pubKey    = '';

	akeeba.Setup.FtpBrowser.params.key = key;

	akeeba.Setup.SftpBrowser.open();
};

/**
 * Opens the SFTP directory browser
 */
akeeba.Setup.SftpBrowser.open = function ()
{
	var ftp_dialog_element = document.getElementById('sftpdialog');

	ftp_dialog_element.style.display = 'block';

	akeeba.System.addEventListener(document.getElementById('sftpdialogOkButton'), 'click', function (e)
	{
		akeeba.Setup.SftpBrowser.callback(akeeba.Setup.SftpBrowser.params.directory);

		if ((typeof akeeba.Setup.SftpBrowser.Modal === 'object') && akeeba.Setup.SftpBrowser.Modal.close)
		{
			akeeba.Setup.SftpBrowser.Modal.close();
		}
	});

	akeeba.System.addEventListener(document.getElementById('sftpdialogCancelButton'), 'click', function (e)
	{
		if ((typeof akeeba.Setup.SftpBrowser.Modal === 'object') && akeeba.Setup.SftpBrowser.Modal.close)
		{
			akeeba.Setup.SftpBrowser.Modal.close();
		}
	});

	akeeba.Setup.SftpBrowser.Modal = akeeba.Modal.open({
		inherit: ftp_dialog_element,
		width:   '80%'
	});

	document.getElementById('sftpBrowserErrorContainer').style.display = 'none';
	document.getElementById('sftpBrowserFolderList').innerHTML         = '';
	document.getElementById('sftpBrowserCrumbs').innerHTML             = '';

	// URL to load the browser
	akeeba.System.params.AjaxURL = akeeba.Setup.URLs.sftpBrowser;

	if (empty(akeeba.Setup.SftpBrowser.params.directory))
	{
		akeeba.Setup.SftpBrowser.params.directory = '';
	}

	var data = {
		'host':      akeeba.Setup.SftpBrowser.params.host,
		'port':      akeeba.Setup.SftpBrowser.params.port,
		'username':  akeeba.Setup.SftpBrowser.params.username,
		'password':  akeeba.Setup.SftpBrowser.params.password,
		'directory': akeeba.Setup.SftpBrowser.params.directory,
		'privkey':   akeeba.Setup.SftpBrowser.params.privKey,
		'pubkey':    akeeba.Setup.SftpBrowser.params.pubKey
	};

	// Do AJAX call & Render results
	akeeba.System.doAjax(
		data,
		function (data)
		{
			var elSFTPBrowserFolderList = document.getElementById('sftpBrowserFolderList');
			var elSFTPCrumbs            = document.getElementById('ak_scrumbs');

			elSFTPBrowserFolderList.style.display = 'none';
			elSFTPCrumbs.style.display            = 'none';

			if (data.error != false)
			{
				// An error occured
				document.getElementById('sftpBrowserError').innerHTML              = data.error;
				document.getElementById('sftpBrowserErrorContainer').style.display = 'block';

				return;
			}

			// Create the interface
			document.getElementById('ftpBrowserErrorContainer').style.display = 'none';

			// Display the crumbs
			if (!empty(data.breadcrumbs))
			{
				elSFTPCrumbs.style.display = 'block';
				elSFTPCrumbs.innerHTML     = '';
				var relativePath           = '/';

				akeeba.Setup.FtpBrowser.addCrumb(akeeba.Setup.translations['UI-ROOT'], '/', elSFTPCrumbs, akeeba.Setup.SftpBrowser);

				for (var i = 0; i < data.breadcrumbs.length; i++)
				{
					var crumb = data.breadcrumbs[i];

					relativePath += '/' + crumb;

					akeeba.Setup.FtpBrowser.addCrumb(crumb, relativePath, elSFTPCrumbs, akeeba.Setup.SftpBrowser);
				}
			}

			// Display the list of directories
			if (!empty(data.list))
			{
				elSFTPBrowserFolderList.style.display = 'block';

				// If the directory in the browser is empty, let's inject it with the parent dir, otherwise if the user immediately clicks on "Use" gets a wrong path
				if (!akeeba.Solo.SftpBrowser.params.directory)
				{
					akeeba.Solo.SftpBrowser.params.directory = data.directory;
				}

				for (i = 0; i < data.list.length; i++)
				{
					var item = data.list[i];

					akeeba.Setup.FtpBrowser.createLink(data.directory + '/' + item, item, elSFTPBrowserFolderList, akeeba.Configuration.SftpBrowser);
				}
			}
		},
		function (message)
		{
			document.getElementById('sftpBrowserError').innerHTML              = message;
			document.getElementById('sftpBrowserErrorContainer').style.display = 'block';
			document.getElementById('sftpBrowserFolderList').style.display     = 'none';
			document.getElementById('sftpBrowserCrumbs').style.display         = 'none';
		},
		false
	);
};

/**
 * SFTP browser callback, used to set the FTP root directory in an element
 *
 * @param  path  The path returned by the browser
 */
akeeba.Setup.SftpBrowser.callback = function (path)
{
	var charlist = ('/').replace(/([\[\]\(\)\.\?\/\*\{\}\+\$\^\:])/g, '$1');
	var re       = new RegExp('^[' + charlist + ']+', 'g');
	path         = '/' + (path + '').replace(re, '');

	document.getElementById(akeeba.Setup.SftpBrowser.params.key).value = path;
};

akeeba.Setup.FtpTest.testConnection = function (buttonKey, configKey)
{
	var button                   = document.getElementById(buttonKey);
	akeeba.Setup.FtpTest.buttonKey = buttonKey;

	button.setAttribute('disabled', 'disabled');

	var data = {
		host:    document.getElementById(configKey + '_host').value,
		port:    document.getElementById(configKey + '_port').value,
		user:    document.getElementById(configKey + '_username').value,
		pass:    document.getElementById(configKey + '_password').value,
		initdir: document.getElementById(configKey + '_directory').value,
		usessl:  false,
		passive: true
	};

	// Construct the query
	akeeba.System.params.AjaxURL = akeeba.Setup.URLs.testFtp;

	akeeba.System.doAjax(
		data,
		function (res)
		{
			var button = document.getElementById(akeeba.Setup.FtpTest.buttonKey);
			button.removeAttribute('disabled');

			var testFtpDialogBodyOk   = document.getElementById('testFtpDialogBodyOk');
			var testFtpDialogBodyFail = document.getElementById('testFtpDialogBodyFail');
			var testFtpDialogLabel    = document.getElementById('testFtpDialogLabel');

			testFtpDialogBodyOk.style.display   = 'none';
			testFtpDialogBodyFail.style.display = 'none';

			if (res === true)
			{
				testFtpDialogLabel.innerHTML        = akeeba.Setup.translations['UI-TESTFTP-OK'];
				testFtpDialogBodyOk.innerHTML       = akeeba.Setup.translations['UI-TESTFTP-OK'];
				testFtpDialogBodyOk.style.display   = 'block';
				testFtpDialogBodyFail.style.display = 'none';
			}
			else
			{
				testFtpDialogLabel.innerHTML = akeeba.Setup.translations['UI-TESTFTP-FAIL'];
				testFtpDialogBodyFail.html(res);
				testFtpDialogBodyOk.style.display   = 'none';
				testFtpDialogBodyFail.style.display = 'block';
			}

			akeeba.Setup.FtpTest.Modal = akeeba.Modal.open({
				inherit: document.getElementById('testFtpDialog'),
				width:   '80%'
			});
		}, null, false, 15000
	)
};

akeeba.Setup.SftpTest.testConnection = function (buttonKey, configKey)
{
	var button                    = document.getElementById(buttonKey);
	akeeba.Setup.SftpTest.buttonKey = buttonKey;

	button.setAttribute('disabled', 'disabled');

	var data = {
		host:    document.getElementById(configKey + '_host').value,
		port:    document.getElementById(configKey + '_port').value,
		user:    document.getElementById(configKey + '_username').value,
		pass:    document.getElementById(configKey + '_password').value,
		initdir: document.getElementById(configKey + '_directory').value,
		privkey: '',
		pubkey:  ''
	};

	// Construct the query
	akeeba.System.params.AjaxURL = akeeba.Setup.URLs.testSftp;

	akeeba.System.doAjax(
		data,
		function (res)
		{
			var button = document.getElementById(akeeba.Setup.SftpTest.buttonKey);
			button.removeAttr('disabled');

			var testFtpDialogBodyOk   = document.getElementById('testFtpDialogBodyOk');
			var testFtpDialogBodyFail = document.getElementById('testFtpDialogBodyFail');
			var testFtpDialogLabel    = document.getElementById('testFtpDialogLabel');

			testFtpDialogBodyOk.style.display   = 'none';
			testFtpDialogBodyFail.style.display = 'none';

			if (res === true)
			{
				testFtpDialogLabel.innerHTML        = akeeba.Setup.translations['UI-TESTSFTP-OK'];
				testFtpDialogBodyOk.innerHTML       = akeeba.Setup.translations['UI-TESTSFTP-OK'];
				testFtpDialogBodyOk.style.display   = 'block';
				testFtpDialogBodyFail.style.display = 'none';
			}
			else
			{
				testFtpDialogLabel.innerHTML        = akeeba.Setup.translations['UI-TESTSFTP-FAIL'];
				testFtpDialogBodyFail.innerHTML     = res;
				testFtpDialogBodyOk.style.display   = 'none';
				testFtpDialogBodyFail.style.display = 'block';
			}

			akeeba.Setup.FtpTest.Modal = akeeba.Modal.open({
				inherit: document.getElementById('testFtpDialog'),
				width:   '80%'
			});
		}, null, false, 15000
	)
};


akeeba.Setup.initFtpSftpBrowser = function ()
{
	var driver = document.getElementById('fs_driver').value;

	if (driver === 'ftp')
	{
		akeeba.Setup.FtpBrowser.initialise('fs_directory', 'fs')
	}
	else if (driver === 'sftp')
	{
		akeeba.Setup.SftpBrowser.initialise('fs_directory', 'fs')
	}

	return false;
};

akeeba.Setup.testFtpSftpConnection = function ()
{
	var driver = document.getElementById('fs_driver').value;

	if (driver === 'ftp')
	{
		akeeba.Setup.FtpTest.testConnection('btnFtpTest', 'fs');
	}
	else if (driver === 'sftp')
	{
		akeeba.Setup.SftpTest.testConnection('btnFtpTest', 'fs');
	}

	return false;
};
