/**
 * @package JFBConnect
 * @copyright (C) 2009-2011 by Source Coast - All rights reserved
 * @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */
var jfbc = {
    login: {
        // login_custom is used for non XFBML login requests (custom image buttons)
        login_custom: function() {
            FB.login(function (response) {
                        if (response.session) {
                            jfbc.login.login_button_click();
                        }
                    }, {
                        perms: jfbcRequiredPermissions
                    });

        },
        // Action to perform after authentication on FB has occurred
        login_button_click: function() {
            if (FB.getSession()) {
                self.location = jfbcOptionsPermsUrl;
            }
        },

        logout_button_click: function() {
            if (jfbcLogoutFacebook) {
                FB.logout(function(response) {
                    jfbc.login.redirect_to_logout();
                });
            }
            else
                jfbc.login.redirect_to_logout();
        },

        redirect_to_logout: function () {
            self.location = jfbcLogoutLink;
        }
    },

    register: {
        checkUsernameAvailable: function() {
            var testName = $('username').value;
            if (testName != '')
                var myXHR = new XHR({
                    method:'get',
                    onSuccess:jfbc.register.showUsernameSuccess
                }).send('index.php', 'option=com_jfbconnect&view=loginregister&task=checkUsernameAvailable&username=' + testName);
        },

        checkPassword: function() {
            var testPassword = $('password').value;
            var passwordSuccessElement = $('jfbcPasswordSuccess');
            var val = "";
            if (testPassword.length < 6)
                val = '<img src="' + jfbcRoot + 'images/cancel_f2.png" width="20" height="20">' + jfbcPasswordInvalid;
            passwordSuccessElement.innerHTML = val;
        },

        checkPassword2: function() {
            var testPassword = $('password').value;
            var testPassword2 = $('password2').value;
            var passwordSuccessElement = $('jfbcPassword2Success');
            var val = "";
            if (testPassword != testPassword2)
                val = '<img src="' + jfbcRoot + 'images/cancel_f2.png" width="20" height="20">' + jfbcPassword2NoMatch;
            passwordSuccessElement.innerHTML = val;
        },

        showUsernameSuccess: function(req) {
            var usernameSuccessElement = $('jfbcUsernameSuccess');
            if (req == 1) {
                usernameSuccessElement.innerHTML = '<img src="' + jfbcRoot + 'images/apply_f2.png" width="20" height="20">' + jfbcUsernameIsAvailable;
            }
            else {
                usernameSuccessElement.innerHTML = '<img src="' + jfbcRoot + 'images/cancel_f2.png" width="20" height="20">' + jfbcUsernameIsInUse;
            }

        },

        checkEmailAvailable: function() {
            var testEmail = $('email').value;
            if (testEmail != '' && jfbc.register.isEmail(testEmail))
                var myXHR = new XHR({
                    method:'get',
                    onSuccess:jfbc.register.showEmailSuccess
                }).send('index.php', 'option=com_jfbconnect&view=loginregister&task=checkEmailAvailable&email=' + testEmail);
        },

        showEmailSuccess: function(req) {
            emailSuccessElement = document.getElementById('jfbcEmailSuccess');
            if (req == 1) {
                emailSuccessElement.innerHTML = '<img src="' + jfbcRoot + 'images/apply_f2.png" width="20" height="20">' + jfbcEmailIsAvailable;
            }
            else {
                emailSuccessElement.innerHTML = '<img src="' + jfbcRoot + 'images/cancel_f2.png" width="20" height="20">' + jfbcEmailIsInUse;
            }
        },

        isEmail: function(text) {
            var pattern = "^[\\w-_\.]*[\\w-_\.]\@[\\w]\.+[\\w]+[\\w]$";
            var regex = new RegExp(pattern);
            return regex.test(text);
        }
    },

    checkPermission: function(permission, callback) {
        FB.ensureInit(function() {
            FB.Connect.requireSession(function() {
                FB.Connect.showPermissionDialog(permission,
                        function(result) {
                            callback();
                        }, false, null);
            });
        });

        return false;
    },

    social: {
        comment: {
            create: function(response) {
                //alert("Href= "+response.href+", ID="+response.commentID);
                var url = 'option=com_jfbconnect&controller=social&task=commentCreate&href=' + encodeURIComponent(escape(response.href)) + '&commentID=' + response.commentID;
                var myXHR = new XHR({
                    method:'get'
                }).send('index.php', url);
            }
        },
        like: {
            create: function(response) {
                //alert("Href= "+response.href+", ID="+response.commentID);
                var url = 'option=com_jfbconnect&controller=social&task=likeCreate&href=' + encodeURIComponent(escape(response));
                var myXHR = new XHR({
                    method:'get'
                }).send('index.php', url);
            }
        }
    },

    canvas: {
        checkFrame: function() {
            if (top == window) { // crude check for any frame
                if (window.location.search == "")
                    top.location.href = window.location.href + '?jfbcCanvasBreakout=1';
                else
                    top.location.href = window.location.href + '&jfbcCanvasBreakout=1';
            }
        }
    },

    dumpObj: function(obj, name, indent, depth) {
        if (depth > 10) {
            return indent + name + ": <Maximum Depth Reached>\n";
        }

        if (typeof obj == "object") {
            var child = null;
            var output = indent + name + "\n";
            indent += "\t";
            for (var item in obj) {
                try {
                    child = obj[item];
                } catch (e) {
                    child = "<Unable to Evaluate>";
                }
                if (typeof child == "object") {
                    output += dumpObj(child, item, indent, depth + 1);
                } else {
                    output += indent + item + ": " + child + "\n";
                }
            }
            return output;
        } else {
            return obj;
        }
    }
}