Add a Happening Now View

app/controllers/schedules_controller.rb

@@ -60,6 +60,14 @@ class SchedulesController < ApplicationController
     @tag = day.strftime('%Y-%m-%d') if day
   end
 
+  def happening_now
+    @events_schedules = @program.selected_event_schedules(
+      includes: [:room, { event: %i[track event_type speakers submitter] }]
+    ).select(&:happening_now?)
+    @events_schedules = [] unless @events_schedules
+    @current_time = Time.now.in_time_zone(@conference.timezone)
+  end
+
   def app
     @qr_code = RQRCode::QRCode.new(conference_schedule_url).as_svg(offset: 20, color: '000', shape_rendering: 'crispEdges', module_size: 11)
   end

app/helpers/events_helper.rb

@@ -177,14 +177,14 @@ module EventsHelper
     return unless event.url.present? && current_user
 
     conference = event.conference
-    is_today = event.time&.in_time_zone(conference.timezone).to_date == conference.current_conference_day
+    is_now = event.happening_now?
 
     if current_user.roles.where(id: conference.roles).any?
       # Show Pre-Event links for any memeber of the conference team.
-      link_to("Join Live Event #{'(Pre-Event)' unless is_today}",
+      link_to("Join Live Event #{'(Pre-Event)' unless is_now}",
                       event.url, target: '_blank')
     elsif current_user.registered_to_event?(conference)
-      if is_today
+      if is_now
         link_to('Join Live Event', event.url, target: '_blank')
       else
         link_to('Live Event Link Coming Soon', '#')

app/models/ability.rb

@@ -31,7 +31,7 @@ class Ability
       event.state == 'confirmed'
     end
 
-    can [:show, :events, :app], Schedule do |schedule|
+    can [:show, :events, :happening_now, :app], Schedule do |schedule|
       schedule.program.schedule_public
     end
 

app/models/event.rb

@@ -274,6 +274,14 @@ class Event < ApplicationRecord
     event_schedules.find_by(schedule_id: selected_schedule_id).try(:start_time)
   end
 
+  ##
+  # Returns the start time at which this event is scheduled
+  #
+  def happening_now?
+    event_schedules.find_by(schedule_id: selected_schedule_id).try(:happening_now?)
+  end
+
+
   ##
   # Returns true or false, if the event is already over or not
   #

app/models/event_schedule.rb

@@ -27,15 +27,21 @@ class EventSchedule < ApplicationRecord
 
   delegate :guid, to: :room, prefix: true
 
-  delegate :timezone, to: :event
+  def timezone
+    event.conference.timezone
+  end
 
   ##
-  # True within 1 hour before and after the event.
+  # True within `threshold` before and after the event.
   #
   def happening_now?(threshold=30.minutes)
-    pre_start_time = (start_time - threshold).in_time_zone(timezone)
-    end_time_with_threshold = (end_time + threshold).in_time_zone(timezone)
-    (pre_start_time..end_time_with_threshold).cover?(Time.now.in_time_zone(timezone))
+    in_tz_start = start_time.in_time_zone(timezone)
+    in_tz_end = start_time.in_time_zone(timezone)
+    in_tz_start -= in_tz_start.utc_offset
+    in_tz_end -= in_tz_end.utc_offset
+    begin_range = Time.now - threshold
+    end_range = Time.now + threshold + 1.minute # The range is exclusive.
+    (begin_range..end_range).cover?(in_tz_start) || (begin_range..end_range).cover?(in_tz_end)
   end
 
   def self.withdrawn_or_canceled_event_schedules(schedule_ids)

app/views/schedules/_schedule_tabs.html.haml

@@ -3,5 +3,7 @@
   %ul.nav.nav-tabs{ role: "tablist" }
     %li{ class: "program #{ 'active' if active == 'program' }", role: "presentation" }
       = link_to('All events', events_conference_schedule_path(@conference.short_title))
+    %li{ class: "program #{ 'active' if active == 'now' }", role: "presentation" }
+      = link_to('Happening Now', happening_now_conference_schedule_path(@conference.short_title))
     %li{ class: "schedule #{ 'active' if active == 'schedule' }", role: "presentation" }
       = link_to('Schedule', conference_schedule_path(@conference.short_title))

app/views/schedules/happening_now.haml

@@ -0,0 +1,46 @@
+.container#program
+  = render partial: 'schedule_tabs', locals: { active: 'now' }
+
+  %h1.text-center
+    Happening Now at
+    = @conference.title
+  -# .dropdown.program-dropdown
+  -#   %button{ type: "button", class: "btn btn-default dropdown-toggle", 'data-toggle' => "dropdown" }
+  -#     Dates
+  -#     %span.caret
+  -#   %ul.dropdown-menu
+  -#     - @dates.each do |date|
+  -#       %li.li-dropdown-program
+  -#         = link_to date, "##{date}", class: "program-selector#{ ' no-events-day' unless @conference.program.any_event_for_this_date?(date) }"
+  -#     - if @unscheduled_events.any?
+  -#       %li.li-dropdown-program
+  -#         = link_to('Unscheduled', "#unscheduled", class: 'program-selector')
+
+  .row
+    %h2
+      #{pluralize(@events_schedules.count, 'Event')} Occurring Within The Next 30 minutes.
+    %h3
+      This page was loaded at #{Time.now.strftime('%Y-%m-%d at %H:%M %P')}
+    %p
+      P.S. This page is in beta, and if it doesn't make sense, we're sorry.
+    %small
+      Times & Timezones...only of the many 2 hard problems in computer science.
+
+  .row
+    / scheduled events
+    - @events_schedules.each do |event_schedule|
+      .col-xs-12.col-md-11.col-md-offset-1
+        = render partial: 'event', locals: { event: event_schedule.event, event_schedule: event_schedule }
+
+:javascript
+  $('.program-selector').on('click', function(e) {
+    $('.li-dropdown-program').removeClass('active');
+  });
+
+  // Go to current date and time
+  $(document).ready(function(){
+    tag = "#{ @tag }";
+    if(tag !== ""){
+      document.getElementById(tag).scrollIntoView();
+    }
+  });

config/routes.rb

@@ -204,6 +204,7 @@ Osem::Application.routes.draw do
       end
       member do
         get :events
+        get :happening_now
       end
     end
   end