/*
 * Copyright (C) 2014 Glyptodon LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

angular.module('login').controller('loginController', ['$scope', '$injector',
        function loginController($scope, $injector) {
            
    // Required services
    var $location             = $injector.get('$location');
    var authenticationService = $injector.get('authenticationService');
    var guacClientManager     = $injector.get('guacClientManager');
    var userPageService       = $injector.get('userPageService');

    /**
     * Whether an error occurred during login.
     * 
     * @type Boolean
     */
    $scope.loginError = false;

    /**
     * Whether the password field has focus.
     * 
     * @type Boolean
     */
    $scope.passwordFocused = false;

    /**
     * Submits the currently-specified username and password to the
     * authentication service, redirecting to the main view if successful.
     */
    $scope.login = function login() {

        // Attempt login once existing session is destroyed
        authenticationService.login($scope.username, $scope.password)

        // Redirect to main view upon success
        .then(function loginSuccessful() {

            // Provide user with clean environment
            guacClientManager.clear();

            // Redirect to main view
            userPageService.getHomePage()
            .then(function homePageRetrieved(homePage) {
                $location.url(homePage.url);
            });

        })

        // Reset and focus password upon failure
        ['catch'](function loginFailed() {
            $scope.loginError = true;
            $scope.passwordFocused = true;
            $scope.password = '';
        });

    };

}]);