NEWSBLUR.ReaderFriends = function(options) {
    var defaults = {
        width: 780
    };
        
    this.options = $.extend({}, defaults, options);
    this.model   = NEWSBLUR.AssetModel.reader();

    this.runner();
};

NEWSBLUR.ReaderFriends.prototype = new NEWSBLUR.Modal;

_.extend(NEWSBLUR.ReaderFriends.prototype, {
    
    runner: function() {
        this.make_modal();
        this.open_modal();
        this.fetch_friends();

        this.$modal.bind('click', $.rescope(this.handle_click, this));
        this.handle_change();
    },
    
    make_modal: function() {
        var self = this;
        
        this.$modal = $.make('div', { className: 'NB-modal NB-modal-friends' }, [
            $.make('div', { className: 'NB-modal-tabs' }, [
                $.make('div', { className: 'NB-modal-loading' }),
                $.make('div', { className: 'NB-modal-tab NB-active NB-modal-tab-findfriends' }, 'Find Friends'),
                $.make('div', { className: 'NB-modal-tab NB-modal-tab-following' }, 'I\'m Following'),
                $.make('div', { className: 'NB-modal-tab NB-modal-tab-followers' }, 'Following Me')
            ]),
            $.make('h2', { className: 'NB-modal-title' }, 'Friends and Followers'),
            $.make('div', { className: 'NB-tab NB-tab-findfriends NB-active' }, [
                $.make('fieldset', [
                    $.make('legend', 'Social Connections'),
                    $.make('div', { className: 'NB-modal-section NB-friends-services'})
                ]),
                $.make('fieldset', [
                    $.make('legend', 'Profile picture'),
                    $.make('div', { className: 'NB-modal-section NB-friends-profile'})
                ]),
                $.make('fieldset', [
                    $.make('legend', 'People I Know'),
                    $.make('div', { className: 'NB-modal-section NB-friends-findlist'}, [
                        $.make('div', { className: 'NB-ghost' }, 'You\'re auto-following new friends, so no need to manually follow them. Yay!')
                    ])
                ]),
                $.make('fieldset', [
                    $.make('legend', 'Search for friends'),
                    $.make('div', { className: 'NB-modal-section NB-friends-search'}, [
                        $.make('label', { 'for': 'NB-friends-search-input' }, 'Username or email:'),
                        $.make('input', { type: 'text', className: 'NB-input', id: 'NB-friends-search-input' })
                    ])
                ])
            ]),
            $.make('div', { className: 'NB-tab NB-tab-following' }),
            $.make('div', { className: 'NB-tab NB-tab-followers' })
        ]);
    },
    
    fetch_friends: function() {
        $('.NB-modal-loading', this.$modal).addClass('NB-active');
        this.model.fetch_friends(_.bind(function(data) {
            this.make_friends(data);
            this.make_profile(data);
            this.make_followers(data);
            this.make_following(data);
        }, this));
    },
    
    make_friends: function(data) {
        console.log(["data", data]);
        $('.NB-modal-loading', this.$modal).removeClass('NB-active');
        var $services = $('.NB-friends-services', this.$modal).empty();
        
        _.each(['twitter', 'facebook'], function(service) {
            var $service;
            if (data.services[service][service+'_uid']) {
                $service = $.make('div', { className: 'NB-friends-service NB-connected NB-friends-service-'+service }, [
                    $.make('div', { className: 'NB-friends-service-title' }, _.capitalize(service)),
                    $.make('div', { className: 'NB-friends-service-connect NB-modal-submit-button NB-modal-submit-close' }, 'Disconnect')
                ]);
            } else {
                $service = $.make('div', { className: 'NB-friends-service NB-friends-service-'+service }, [
                    $.make('div', { className: 'NB-friends-service-title' }, _.capitalize(service)),
                    $.make('div', { className: 'NB-friends-service-connect NB-modal-submit-button NB-modal-submit-green' }, [
                        $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/reader/' + service + '_icon.png' }),
                        'Connect to ' + _.capitalize(service)
                    ])
                ]);
            }
            $services.append($service);
        });
       
        $autofollow = $.make('div', { className: 'NB-friends-service NB-friends-autofollow'}, [
            $.make('input', { type: 'checkbox', className: 'NB-friends-autofollow-checkbox', id: 'NB-friends-autofollow-checkbox', checked: data.autofollow ? 'checked' : null }),
            $.make('label', { className: 'NB-friends-autofollow-label', 'for': 'NB-friends-autofollow-checkbox' }, [
                'Auto-follow',
                $.make('br'),
                'my friends'
            ])
        ]);
        $services.prepend($autofollow);
        this.resize();
    },
    
    make_profile: function(data) {
        var $profiles = $('.NB-friends-profile', this.$modal).empty();
        
        _.each(['upload', 'twitter', 'facebook', 'gravatar'], function(service) {
            var $profile = $.make('div', { className: 'NB-friends-profile-photo-group NB-friends-photo-'+service }, [
                $.make('div', { className: 'NB-friends-photo-title' }, [
                    $.make('input', { type: 'radio', name: 'profile_photo_service', value: service, id: 'NB-profile-photo-service-'+service }),
                    $.make('label', { 'for': 'NB-profile-photo-service-'+service }, _.capitalize(service))
                ]),
                $.make('div', { className: 'NB-friends-photo-image' }, [
                    $.make('label', { 'for': 'NB-profile-photo-service-'+service }, [
                        $.make('div', { className: 'NB-photo-loader' }),
                        $.make('img', { src: data.services[service][service+'_picture_url'] })
                    ])
                ]),
                (service == 'upload' && $.make('div', { className: 'NB-photo-link' }, [
                    $.make('a', { href: '#', className: 'NB-photo-upload-link NB-splash-link' }, 'Upload picture'),
                    $.make('input', { type: 'file', name: 'photo' })
                ])),
                (service == 'gravatar' && $.make('div', { className: 'NB-gravatar-link' }, [
                    $.make('a', { href: 'http://www.gravatar.com', className: 'NB-splash-link', target: '_blank' }, 'gravatar.com')
                ]))
            ]);
            $profiles.append($profile);
        });
    },
    
    make_followers: function(data) {
        if (!data.followers || !data.followers.length) {
            var $ghost = $.make('div', { className: 'NB-ghost NB-modal-section' }, 'Nobody has yet to subscribe to your shared stories.');
            $('.NB-tab-followers', this.$modal).empty().append($ghost);
        }
    },
    
    make_following: function(data) {
        if (!data.following || !data.following.length) {
            var $ghost = $.make('div', { className: 'NB-ghost NB-modal-section' }, 'You are not yet subscribing to anybody\'s shared stories.');
            $('.NB-tab-following', this.$modal).empty().append($ghost);
        }
    },
    
    open_modal: function(callback) {
        var self = this;
        
        this.$modal.modal({
            'minWidth': 740,
            'maxWidth': 740,
            'overlayClose': true,
            'onOpen': function (dialog) {
                dialog.overlay.fadeIn(200, function () {
                    dialog.container.fadeIn(200);
                    dialog.data.fadeIn(200, function() {
                        if (self.options.onOpen) {
                            self.options.onOpen();
                        }
                    });
                    setTimeout(function() {
                        $(window).resize();
                    });
                });
            },
            'onShow': function(dialog) {
                $('#simplemodal-container').corner('6px');
                if (self.options.onShow) {
                    self.options.onShow();
                }
            },
            'onClose': function(dialog, callback) {
                dialog.data.hide().empty().remove();
                dialog.container.hide().empty().remove();
                dialog.overlay.fadeOut(200, function() {
                    dialog.overlay.empty().remove();
                    $.modal.close(callback);
                });
                $('.NB-modal-holder').empty().remove();
            }
        });
    },
    
    switch_tab: function(newtab) {
        var $modal_tabs = $('.NB-modal-tab', this.$modal);
        var $tabs = $('.NB-tab', this.$modal);
        
        $modal_tabs.removeClass('NB-active');
        $tabs.removeClass('NB-active');
        
        $modal_tabs.filter('.NB-modal-tab-'+newtab).addClass('NB-active');
        $tabs.filter('.NB-tab-'+newtab).addClass('NB-active');
    },
    
    connect: function(service) {
        var options = "location=0,status=0,width=800,height=500";
        var url = "/social/" + service + "_connect";
        this.connect_window = window.open(url, '_blank', options);
    },
    
    disconnect: function(service) {
        var $service = $('.NB-friends-service-'+service, this.$modal);
        $('.NB-friends-service-connect', $service).text('Disconnecting...');
        this.model.disconnect_social_service(service, _.bind(function(data) {
            this.make_friends(data);
            this.make_profile(data);
        }, this));
    },
    
    post_connect: function(data) {
        $('.NB-error', this.$modal).remove();
        if (data.error) {
            var $error = $.make('div', { className: 'NB-error' }, [
                $.make('span', { className: 'NB-raquo' }, '» '),
                data.error
            ]).css('opacity', 0);
            $('.NB-friends-services', this.$modal).append($error);
            $error.animate({'opacity': 1}, {'duration': 1000});
            this.resize();
        } else {
            this.fetch_friends();
            NEWSBLUR.reader.hide_find_friends();
        }
    },
    
    // ===========
    // = Actions =
    // ===========

    handle_click: function(elem, e) {
        var self = this;
        
        $.targetIs(e, { tagSelector: '.NB-modal-tab' }, function($t, $p) {
            e.preventDefault();
            var newtab;
            if ($t.hasClass('NB-modal-tab-findfriends')) {
                newtab = 'findfriends';
            } else if ($t.hasClass('NB-modal-tab-followers')) {
                newtab = 'followers';
            } else if ($t.hasClass('NB-modal-tab-following')) {
                newtab = 'following';
            }
            self.switch_tab(newtab);
        });        
        $.targetIs(e, { tagSelector: '.NB-friends-service-connect' }, function($t, $p) {
            e.preventDefault();
            var service;
            var $service = $t.closest('.NB-friends-service');
            if ($service.hasClass('NB-friends-service-twitter')) {
                service = 'twitter';
            } else if ($service.hasClass('NB-friends-service-facebook')) {
                service = 'facebook';
            }
            if ($service.hasClass('NB-connected')) {
                self.disconnect(service);
            } else {
                self.connect(service);
            }
        });
        $.targetIs(e, { tagSelector: '.NB-modal-cancel' }, function($t, $p) {
            e.preventDefault();
            
            self.close();
        });
    },
    
    handle_cancel: function() {
        var $cancel = $('.NB-modal-cancel', this.$modal);
        
        $cancel.click(function(e) {
            e.preventDefault();
            $.modal.close();
        });
    },
    
    handle_change: function() {
        $('input[type=radio],input[type=checkbox],select,input', this.$modal).bind('change', _.bind(this.enable_save, this));
        $('input', this.$modal).bind('keydown', _.bind(this.enable_save, this));
    },
    
    enable_save: function() {
        $('input[type=submit]', this.$modal).removeAttr('disabled').removeClass('NB-disabled').val('Save My Account');
    },
    
    disable_save: function() {
        this.resize();
        $('input[type=submit]', this.$modal).attr('disabled', true).addClass('NB-disabled').val('Change what you like above...');
    }
    
});