Events: kickstart shared scoreboard

app/controllers/concerns/contests_concern.rb

@@ -0,0 +1,7 @@
+module ContestsConcern
+  extend ActiveSupport::Concern
+
+  def active_page(path)
+    request.path.starts_with?(path) ? "active" : ""
+  end
+end

app/controllers/contests_controller.rb

@@ -1,5 +1,6 @@
 class ContestsController < ApplicationController
   include CompletionsConcern
+  include ContestsConcern
   include ContestantsConcern
 
   before_action :set_contest, only: %i[ destroy show ]
@@ -168,10 +169,30 @@ class ContestsController < ApplicationController
   end
 
   def scoreboard
-    @contest = Contest.find_by(slug: params[:id])
-    unless @contest && @contest.public
-      skip_authorization
-      not_found and return
+    if active_page("/public/event")
+      @event = Event.find_by(slug: params[:id])
+      unless @event && @event.shared_scoreboard && !@event.contests.where(public: true).empty?
+        skip_authorization
+        not_found and return
+      end
+      if params.key?(:contest_id)
+        begin
+          @contest = Contest.find(params[:contest_id])
+          if @contest.event != @event
+            @contest = @event.contests.where(public: true).first
+          end
+        rescue
+          @contest = @event.contests.where(public: true).first
+        end
+      else
+        @contest = @event.contests.where(public: true).first
+      end
+    else
+      @contest = Contest.find_by(slug: params[:id])
+      unless @contest && @contest.public
+        skip_authorization
+        not_found and return
+      end
     end
     authorize @contest
 

app/controllers/events_controller.rb

@@ -35,7 +35,7 @@ class EventsController < ApplicationController
   def show
     authorize @event
 
-    @contests = @event.contests
+    @contests = @event.contests.includes([ :contestants, :puzzles ])
     @title = @event.name
   end
 
@@ -65,11 +65,13 @@ class EventsController < ApplicationController
     redirect_to events_path, notice: t("events.destroy.notice")
   end
 
+  private
+
   def set_event
     @event = Event.find(params[:id])
   end
 
   def event_params
-    params.expect(event: [ :name, :shared_scoreboard ])
+    params.expect(event: [ :lang, :name, :shared_scoreboard ])
   end
 end

app/models/event.rb

@@ -6,6 +6,7 @@
 #  lang              :string           default("en")
 #  name              :string
 #  shared_scoreboard :boolean
+#  slug              :string
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
 #  user_id           :integer          not null
@@ -19,8 +20,13 @@
 #  user_id  (user_id => users.id)
 #
 class Event < ApplicationRecord
+  extend FriendlyId
+
   belongs_to :user
   has_many :contests, dependent: :destroy
 
+  friendly_id :name, use: :slugged
+
   validates :name, presence: true
+  validates :lang, inclusion: { in: Languages::AVAILABLE_LANGUAGES.map { |lang| lang[:id] } }
 end

app/views/events/_form.html.slim

@@ -15,6 +15,13 @@
     .alert.alert-primary role="alert"
         = t("events.form.shared_scoreboard_message")
 
+    if method == :patch
+        .row.mb-3
+            .col
+                .form-floating
+                    = form.select :lang, Languages::AVAILABLE_LANGUAGES.map { |lang| [ lang[:name], lang[:id] ] }, {}, class: "form-select"
+                    = form.label :lang
+
     .row.mt-4
         .col
             - if method == :patch

app/views/events/show.html.slim

@@ -8,7 +8,14 @@
         a.mt-3.btn.btn-primary.mb-4 href=new_contest_path(event: @event.id)
           = t("events.show.new_contest")
 
-.row.row-cols-1.row-cols-md-3.g-4
+- if @event.shared_scoreboard
+  a.btn.btn-success href="/public/event/#{@event.slug}" style="margin-top: -6px;"
+    = t("events.show.open_shared_scoreboard")
+- else
+  a.btn.btn-success.disabled style="margin-top: -6px;"
+    = t("events.show.shared_scoreboard_disabled")
+
+.mt-3.row.row-cols-1.row-cols-md-3.g-4
   - @contests.each do |contest|
     .col
       css: