NEWSBLUR.ReaderFeedchooser = function(options) {
    options = options || {};
    var defaults = {
        'width': options.premium_only || options.chooser_only ? 460 : 900,
        'height': 750,
        'premium_only': false,
        'chooser_only': false,
        'onOpen': _.bind(function() {
            this.resize_modal();
        }, this),
        'onClose': _.bind(function() {
            if (!this.flags['has_saved'] && !this.model.flags['has_chosen_feeds']) {
                NEWSBLUR.reader.show_feed_chooser_button();
            }
            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();
        }, this)
    };

    this.options = $.extend({}, defaults, options);
    this.model = NEWSBLUR.assets;
    this.runner();
};

NEWSBLUR.ReaderFeedchooser.prototype = new NEWSBLUR.Modal;
NEWSBLUR.ReaderFeedchooser.prototype.constructor = NEWSBLUR.ReaderFeedchooser;

_.extend(NEWSBLUR.ReaderFeedchooser.prototype, {
    
    runner: function() {
        var self = this;
        this.start = new Date();
        this.MAX_FEEDS = 64;

        NEWSBLUR.assets.feeds.each(function(feed) {
            self.add_feed_to_decline(feed);
        });
        
        this.make_modal();
        this.make_paypal_button();

        if (!this.options.premium_only) {
            this.initial_load_feeds();
        }

        _.defer(_.bind(function() { this.update_counts(true); }, this));

        this.flags = {
            'has_saved': false
        };
        this.open_modal();
        
        this.$modal.bind('mousedown', $.rescope(this.handle_mousedown, this));
        this.$modal.bind('change', $.rescope(this.handle_change, this));
    },
    
    make_modal: function() {
        var self = this;
        
        this.$modal = $.make('div', { className: 'NB-modal-feedchooser NB-modal ' + (this.options.premium_only ? "NB-feedchooser-premium" : this.options.chooser_only ? "NB-feedchooser-chooser-only" : "NB-feedchooser-standard") }, [
            // $.make('h2', { className: 'NB-modal-title' }, 'Choose Your '+this.MAX_FEEDS),
            (!this.options.chooser_only && $.make('div', { className: 'NB-feedchooser-type NB-right' }, [
              (!this.options.premium_only && $.make('div', { className: 'NB-feedchooser-porpoise' }, 'OR')),
              (NEWSBLUR.Globals.is_premium && $.make('div', { className: 'NB-feedchooser-info'}, [
                  $.make('div', { className: 'NB-feedchooser-info-type' }, [
                        $.make('span', { className: 'NB-feedchooser-subtitle-type-prefix' }, 'Thank you'),
                        ' for going premium!'
                  ]),
                  $.make('h2', { className: 'NB-modal-subtitle' }, [
                      'Your premium account is paid until:',
                      $.make('br'),
                      $.make('b', { style: 'display: block; margin: 8px 0' }, [
                          $.make('span', { className: 'NB-raquo' }, '»'),
                          ' ',
                          NEWSBLUR.Globals.premium_expire && NEWSBLUR.utils.format_date(NEWSBLUR.Globals.premium_expire),
                          (!NEWSBLUR.Globals.premium_expire && $.make('b', "Never gonna expire. Congrats!"))
                      ]),
                      'You can change your payment method and card details. ',
                      (NEWSBLUR.Globals.premium_expire < new Date) ? 
                      'This will charge your card immediately.' :
                      'You won\'t be charged until this date.'
                  ])
              ])),
              (!NEWSBLUR.Globals.is_premium && $.make('div', { className: 'NB-feedchooser-info'}, [
                  $.make('div', { className: 'NB-feedchooser-info-type' }, [
                    $.make('span', { className: 'NB-feedchooser-subtitle-type-prefix' }, 'Unlimited'),
                    ' Premium Account'
                  ])
              ])),
              $.make('ul', { className: 'NB-feedchooser-premium-bullets' }, [
                $.make('li', { className: 'NB-1' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Enable every site by going premium'
                ]),
                $.make('li', { className: 'NB-2' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Sites updated up to 10x more often'
                ]),
                $.make('li', { className: 'NB-3' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'River of News (reading by folder)'
                ]),
                $.make('li', { className: 'NB-4' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Search sites and folders'
                ]),
                $.make('li', { className: 'NB-5' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Save stories with searchable tags'
                ]),
                $.make('li', { className: 'NB-6' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Privacy options for your blurblog'
                ]),
                $.make('li', { className: 'NB-7' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Custom RSS feeds for folders and saved stories'
                ]),
                $.make('li', { className: 'NB-8' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'Text view conveniently extracts the story'
                ]),
                $.make('li', { className: 'NB-9' }, [
                  $.make('div', { className: 'NB-feedchooser-premium-bullet-image' }),
                  'You feed Lyric, my poor, hungry dog, for ',
                  $.make('span', { className: 'NB-feedchooser-hungry-dog' }, '6 days'),
                  $.make('img', { className: 'NB-feedchooser-premium-poor-hungry-dog', src: NEWSBLUR.Globals.MEDIA_URL + '/img/reader/lyric.jpg' })
                ])
              ]),
              $.make('div', { className: 'NB-modal-submit NB-modal-submit-paypal' }, [
                  // $.make('div', { className: 'NB-feedchooser-payextra' }, [
                  //   $.make('input', { type: 'checkbox', name: 'payextra', id: 'NB-feedchooser-payextra-checkbox' }),
                  //   $.make('label', { 'for': 'NB-feedchooser-payextra-checkbox' }, 'I\'m feeling generous')
                  // ]),
                  $.make('div', { className: 'NB-feedchooser-dollar' }, [
                      // $.make('div', { className: 'NB-feedchooser-dollar-value NB-2' }, [
                      //     $.make('div', { className: 'NB-feedchooser-dollar-month' }, [
                      //       $.make('div', { className: 'NB-feedchooser-dollar-image' }, [
                      //           $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/icons/circular/g_icn_coffeecup_gold16.png', style: "position: absolute; left: -56px;top: 15px;width: 16px;" }),
                      //           $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/icons/circular/g_icn_coffeecup_gold24.png', style: "position: absolute; left: -31px;top: 10px; width: 24px;" }),
                      //           $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/icons/circular/g_icn_coffeecup_gold32.png', style: "position: absolute; left: 0; top: 6px; width: 32px" })
                      //       ]),
                      //       '$24/year'
                      //     ]),
                      //     $.make('div', { className: 'NB-feedchooser-dollar-year' }, '($2/month)')
                      // ]),
                      $.make('div', { className: 'NB-feedchooser-dollar-value NB-3' }, [
                          $.make('div', { className: 'NB-feedchooser-dollar-month' }, [
                            $.make('div', { className: 'NB-feedchooser-dollar-image' }, [
                                $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/icons/circular/g_icn_coffeecup_gold24.png', style: "position: absolute; left: -68px;top: 11px;width: 24px;" }),
                                $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/icons/circular/g_icn_coffeecup_gold32.png', style: "position: absolute; left: -42px;top: 7px; width: 32px;" }),
                                $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/icons/circular/g_icn_coffeecup_gold40.png', style: "position: absolute; left: -8px; top: 4px; width: 40px" })
                            ]),
                            '$36/year'
                          ]),
                          $.make('div', { className: 'NB-feedchooser-dollar-year' }, '($3/month)')
                      ])
                  ]),
                  $.make('div', { className: 'NB-feedchooser-processor' }, [
                      $.make('div', { className: 'NB-feedchooser-paypal' }, [
                        $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + '/img/reader/logo-paypal.png', height: 30 }),
                        $.make('div', { className: 'NB-feedchooser-paypal-form' })
                      ]),
                      $.make('div', { className: 'NB-feedchooser-stripe' }, [
                        $.make('div', { className: 'NB-creditcards' }, [
                            $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + "/img/reader/cc_visa.png" }),
                            $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + "/img/reader/cc_mastercard.png" }),
                            $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + "/img/reader/cc_amex.png" }),
                            $.make('img', { src: NEWSBLUR.Globals.MEDIA_URL + "/img/reader/cc_discover.png" })
                        ]),
                        $.make('div', { 
                            className: "NB-stripe-button NB-modal-submit-button NB-modal-submit-green"
                        }, [
                            (this.options.renew ? "Renew by" : "Pay by"),
                            $.make('br'),
                            "Credit Card"
                        ])
                      ])
                  ])
              ])
            ])),
            (!this.options.premium_only && $.make('div', { className: 'NB-feedchooser-type NB-feedchooser-left'}, [
              (!NEWSBLUR.Globals.is_premium && $.make('div', { className: 'NB-feedchooser-info'}, [
                  $.make('div', { className: 'NB-feedchooser-info-type' }, [
                        $.make('span', { className: 'NB-feedchooser-subtitle-type-prefix' }, 'Free'),
                        ' Standard Account'
                  ]),
                    $.make('h2', { className: 'NB-modal-subtitle' }, [
                        $.make('b', [
                            'You can follow up to '+this.MAX_FEEDS+' sites.'
                        ]),
                        $.make('br'),
                        'You can always change these.'
                    ]),
                  $.make('div', { className: 'NB-feedchooser-info-counts'}),
                  $.make('div', { className: 'NB-feedchooser-info-sort'}, 'Auto-Selected By Popularity'),
                  $.make('div', { className: 'NB-feedchooser-info-reset NB-splash-link'}, 'Reset to popular sites')
              ])),
              (this.options.chooser_only && $.make('div', { className: 'NB-feedchooser-info' }, [
                    $.make('h2', { className: 'NB-modal-title' }, [
                        $.make('div', { className: 'NB-icon' }),
                        'Mute sites',
                        $.make('div', { className: 'NB-icon-dropdown' })
                    ]),
                    $.make('div', { className: 'NB-feedchooser-info-reset NB-splash-link'}, 'Turn every site on'),
                    $.make('div', { className: 'NB-feedchooser-info-counts'})
              ])),
              this.make_feeds(),
              $.make('form', { className: 'NB-feedchooser-form' }, [
                  $.make('div', { className: 'NB-modal-submit' }, [
                      // $.make('div', { className: 'NB-modal-submit-or' }, 'or'),
                      $.make('input', { type: 'submit', disabled: 'true', className: 'NB-disabled NB-modal-submit-button NB-modal-submit-save NB-modal-submit-green', value: 'Check what you like above...' }),
                      $.make('input', { type: 'submit', className: 'NB-modal-submit-add NB-modal-submit-button NB-modal-submit-green', value: 'First, add sites' })
                  ])
              ]).bind('submit', function(e) {
                  e.preventDefault();
                  return false;
              })
            ]))
        ]);
    },
    
    make_paypal_button: function() {
        var self = this;
        var $paypal = $('.NB-feedchooser-paypal-form', this.$modal);
        $.get('/profile/paypal_form', function(response) {
          $paypal.html(response);
          self.choose_dollar_amount(3);
        });
    },
    
    make_google_button: function() {
      var checkout = '<script type="text/javascript" src="https://images-na.ssl-images-amazon.com/images/G/01/cba/js/widget/widget.js"></script><form method=POST action="https://payments.amazon.com/checkout/A215TOHXICT770"><input type="hidden" name="order-input" value="type:cba-signed-order/sha1-hmac/1;order: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;signature:Zfg83JluKTIhItevtaGpspjdbfQ="><input alt="Checkout with Amazon Payments" src="https://payments.amazon.com/gp/cba/button?ie=UTF8&color=tan&background=white&cartOwnerId=A215TOHXICT770&size=large" type="image"></form>';
      var $checkout = $(checkout);
      return $checkout;
    },
    
    make_feeds: function() {
        var feeds = this.model.feeds;
        this.feed_count = _.unique(NEWSBLUR.assets.folders.feed_ids_in_folder({include_inactive: true})).length;
        
        this.feedlist = new NEWSBLUR.Views.FeedList({
            feed_chooser: true,
            sorting: this.options.sorting
        }).make_feeds();
        var $feeds = this.feedlist.$el;
        if (this.options.resize) {
            $feeds.css({'max-height': this.options.resize});
        }
        if ($feeds.data('sortable')) $feeds.data('sortable').disable();
        
        // Expand collapsed folders
        $('.NB-folder-collapsed', $feeds).css({
            'display': 'block',
            'opacity': 1
        }).removeClass('NB-folder-collapsed');
        
        // Pretend unfetched feeds are fine
        $('.NB-feed-unfetched', $feeds).removeClass('NB-feed-unfetched');

        // Make sure all folders are visible
        $('.NB-folder.NB-hidden', $feeds).removeClass('NB-hidden');

        NEWSBLUR.assets.folders.sort();
        
        NEWSBLUR.assets.feeds.off('change:highlighted')
                             .on('change:highlighted', _.bind(this.change_selection, this));
        
        
        return $feeds;
    },

    resize_modal: function(previous_height) {
        var content_height = $('.NB-feedchooser-left', this.$modal).height() + 32;
        var container_height = this.$modal.parent().height();
        if (content_height > container_height && previous_height != content_height) {
            var chooser_height = $('#NB-feedchooser-feeds').height();
            var diff = Math.max(4, content_height - container_height);
            $('#NB-feedchooser-feeds').css({'max-height': chooser_height - diff});
            _.defer(_.bind(function() { this.resize_modal(content_height); }, this), 1);
        }
    },
    
    add_feed_to_decline: function(feed, update) {
        feed.highlight_in_all_folders(false, true, {silent: !update});
        
        if (update) {
            this.update_counts();
        }
    },
    
    add_feed_to_approve: function(feed, update) {
        feed.highlight_in_all_folders(true, false, {silent: false});

        if (update) {
            this.update_counts();
        }
    },

    change_selection: function(update) {
        this.update_counts();
    },

    update_counts: function(initial_load) {
        if (this.options.premium_only) return;
        
        var $count = $('.NB-feedchooser-info-counts');
        var approved = this.feedlist.folder_view.highlighted_count();
        var $submit = $('.NB-modal-submit-save', this.$modal);
        var difference = approved - this.MAX_FEEDS;
        var muted = this.feed_count - approved;
        
        $count.text(approved + '/' + Inflector.commas(this.feed_count));
        
        if (NEWSBLUR.Globals.is_premium) {
            $submit.removeClass('NB-disabled').removeClass('NB-modal-submit-grey').attr('disabled', false);
            if (muted == 0) {
                $submit.val('Enable all ' + Inflector.pluralize('site', this.feed_count, true));
            } else {
                $submit.val('Mute ' + Inflector.pluralize('site', muted, true));
            }
            $count.toggleClass('NB-full', muted == 0);
        } else {
            $count.toggleClass('NB-full', approved == this.MAX_FEEDS);
            $count.toggleClass('NB-error', approved > this.MAX_FEEDS);

            if (!initial_load) {
                this.hide_autoselected_label();
            }
            if (approved > this.MAX_FEEDS) {
              $submit.addClass('NB-disabled').addClass('NB-modal-submit-grey').attr('disabled', true).val('Too many sites! Deselect ' + (
                difference == 1 ?
                '1 site...' :
                difference + ' sites...'
              ));
            } else {
              $submit.removeClass('NB-disabled').removeClass('NB-modal-submit-grey').attr('disabled', false).val('Turn on these '+ approved +' sites, please');
            }
        }
    },
    
    initial_load_feeds: function(reset) {
        var start = new Date();
        var self = this;
        var feeds = this.model.get_feeds();
        var approved = 0; // this.feedlist.folder_view.highlighted_count();

        if (!feeds.size()) {
            _.defer(_.bind(function() {
                var $info = $('.NB-feedchooser-info', this.$modal);
                $('.NB-feedchooser-info-counts', $info).hide();
                $('.NB-feedchooser-info-sort', $info).hide();
                $('.NB-feedchooser-info-reset', $info).hide();
                $('#NB-feedchooser-feeds').hide();
                $('.NB-modal-submit-save').hide();
                $('.NB-modal-submit-add').show();
            }, this));
            return;
        }
        
        if (reset) {
            feeds.each(function(feed) {
                self.add_feed_to_decline(feed, true);
            });
        }
        
        var active_feeds = feeds.any(function(feed) { return feed.get('active'); });
        if (!active_feeds || reset) {
            // Get feed subscribers bottom cut-off
            var min_subscribers = _.last(
              _.first(
                _.map(feeds.select(function(f) { return !f.has_exception; }), function(f) { return f.get('subs'); }).sort(function(a,b) { 
                  return b-a; 
                }), 
                this.MAX_FEEDS
              )
            );
        
            // Decline everything
            var approve_feeds = [];
            feeds.each(function(feed) {
                // self.add_feed_to_decline(feed);
            
                if (feed.get('subs') >= min_subscribers) {
                    approve_feeds.push(feed);
                }
            });
        
            // Approve feeds in subs
            _.each(approve_feeds, function(feed) {
                if (feed.get('subs') > min_subscribers &&
                    approved < self.MAX_FEEDS &&
                    !feed.get('has_exception')) {
                    approved++;
                    self.add_feed_to_approve(feed);
                }
            });
            _.each(approve_feeds, function(feed) {
                if (feed.get('subs') == min_subscribers &&
                    approved < self.MAX_FEEDS) {
                    approved++;
                    self.add_feed_to_approve(feed);
                }
            });
            
            this.show_autoselected_label();
        } else {
            // Get active feeds
            var active_feeds = feeds.select(function(feed) {
                return feed.get('active');
            });

            // Approve or decline
            _.each(active_feeds, function(feed) {
                self.add_feed_to_approve(feed);
            });
            
            _.defer(_.bind(function() { this.hide_autoselected_label(); }, this));
        }
        _.defer(_.bind(function() { this.update_counts(true); }, this));
    },
    
    show_autoselected_label: function() {
        $('.NB-feedchooser-info-reset', this.$modal).fadeOut(500, _.bind(function() {
            $('.NB-feedchooser-info-sort', this.$modal).fadeIn(500);
        }, this));
    },
    
    hide_autoselected_label: function() {
        $('.NB-feedchooser-info-sort', this.$modal).fadeOut(500, _.bind(function() {
            $('.NB-feedchooser-info-sort', this.$modal).hide();
            $('.NB-feedchooser-info-reset', this.$modal).fadeIn(500);
        }, this));
    },
    
    save: function() {
        var self = this;
        var $submit = $('.NB-modal-submit-save', this.$modal);
        $submit.addClass('NB-disabled').removeClass('NB-modal-submit-green').val('Saving...');
        var approve_list = _.pluck(NEWSBLUR.assets.feeds.filter(function(feed) {
            return feed.get('highlighted');
        }), 'id');

        console.log(["Saving", approve_list]);

        NEWSBLUR.reader.flags['reloading_feeds'] = true;
        this.model.save_feed_chooser(approve_list, function() {
            self.flags['has_saved'] = true;
            NEWSBLUR.reader.flags['reloading_feeds'] = false;
            NEWSBLUR.reader.hide_feed_chooser_button();
            NEWSBLUR.assets.load_feeds();
            $.modal.close();
        });
    },
    
    close_and_add: function() {
        $.modal.close(function() {
            NEWSBLUR.add_feed = new NEWSBLUR.ReaderAddFeed();
        });
    },
    
    open_stripe_form: function() {
        var renew = (this.options.renew ? "&renew=true" : "");
        window.location.href = "/profile/stripe_form?plan=" + this.plan + renew;
    },
    
    choose_dollar_amount: function(plan) {
        var $value = $('.NB-feedchooser-dollar-value', this.$modal);
        var $input = $('input[name=a3]');
        var $days = $('.NB-feedchooser-hungry-dog', this.$modal);
        
        this.plan = plan;

        $value.removeClass('NB-selected');
        $value.filter('.NB-'+plan).addClass('NB-selected');
        if (plan == 1) {
            $input.val(12);
            $days.text('6 days');
        } else if (plan == 2) {
            $input.val(24);
            $days.text('12 days');
        } else if (plan == 3) {
            $input.val(36);
            $days.text('18 days');
        }
    },
    
    switch_payextra: function() {
        var $payextra = $("input[name=payextra]", this.$modal);
        var selected = $payextra.is(':checked');
        
        if (selected) {
            this.choose_dollar_amount(3);
        } else {
            this.choose_dollar_amount(2);
        }
    },
    
    // ===========
    // = Actions =
    // ===========

    handle_mousedown: function(elem, e) {
        var self = this;
        
        $.targetIs(e, { tagSelector: '.NB-modal-submit-save' }, _.bind(function($t, $p) {
            e.preventDefault();
            this.save();
        }, this));
              
        $.targetIs(e, { tagSelector: '.NB-modal-submit-add' }, _.bind(function($t, $p) {
            e.preventDefault();
            this.close_and_add();
        }, this));
        
        $.targetIs(e, { tagSelector: '.NB-stripe-button' }, _.bind(function($t, $p) {
            e.preventDefault();
            this.open_stripe_form();
        }, this));
        
        $.targetIs(e, { tagSelector: '.NB-feedchooser-info-reset' }, _.bind(function($t, $p) {
            e.preventDefault();
            this.initial_load_feeds(true);
        }, this));
        
        $.targetIs(e, { tagSelector: '.NB-feedchooser-dollar-value' }, _.bind(function($t, $p) {
            e.preventDefault();
            var step;
            if ($t.hasClass('NB-1')) {
                step = 1;
            } else if ($t.hasClass('NB-2')) {
                step = 2;
            } else if ($t.hasClass('NB-3')) {
                step = 3;
            }
            this.choose_dollar_amount(step);
        }, this));
    },
    
    handle_change: function(elem, e) {
                
        $.targetIs(e, { tagSelector: 'input[name=payextra]' }, _.bind(function($t, $p) {
            e.preventDefault();
            this.switch_payextra();
        }, this));
        
    },

    handle_cancel: function() {
        var $cancel = $('.NB-modal-cancel', this.$modal);
        
        $cancel.click(function(e) {
            e.preventDefault();
            $.modal.close();
        });
    }
                
});