Merge Eventbrite support

Gemfile

@@ -27,6 +27,7 @@ gem 'webpacker'
 gem 'httparty'
 gem 'icalendar'
 gem 'icalendar-recurrence'
+gem 'eventbrite_sdk'
 
 # Uploads
 gem 'carrierwave'

Gemfile.lock

@@ -145,6 +145,8 @@ GEM
       actionmailer (>= 5.0)
       devise (>= 4.6)
     docile (1.3.2)
+    domain_name (0.5.20190701)
+      unf (>= 0.0.5, < 1.0.0)
     dotenv (2.7.5)
     dotenv-rails (2.7.5)
       dotenv (= 2.7.5)
@@ -177,6 +179,8 @@ GEM
       activesupport (>= 3.2)
     equalizer (0.0.11)
     erubi (1.9.0)
+    eventbrite_sdk (3.4.0)
+      rest-client (~> 2.0)
     eventmachine (1.2.7)
     execjs (2.7.0)
     factory_bot (5.1.1)
@@ -233,6 +237,9 @@ GEM
       minitest (>= 3.0)
     hashdiff (1.0.0)
     hashie (3.6.0)
+    http-accept (1.7.0)
+    http-cookie (1.0.3)
+      domain_name (~> 0.5)
     http_parser.rb (0.6.0)
     httparty (0.17.3)
       mime-types (~> 3.0)
@@ -313,6 +320,7 @@ GEM
     mustermann-grape (1.0.1)
       mustermann (>= 1.0.0)
     nenv (0.3.0)
+    netrc (0.11.0)
     nio4r (2.5.2)
     nokogiri (1.10.7)
       mini_portile2 (~> 2.4.0)
@@ -408,6 +416,11 @@ GEM
     responders (3.0.0)
       actionpack (>= 5.0)
       railties (>= 5.0)
+    rest-client (2.1.0)
+      http-accept (>= 1.7.0, < 2.0)
+      http-cookie (>= 1.0.2, < 2.0)
+      mime-types (>= 1.16, < 4.0)
+      netrc (~> 0.8)
     rollbar (2.23.2)
     rubocop (0.79.0)
       jaro_winkler (~> 1.5.1)
@@ -478,6 +491,9 @@ GEM
       thread_safe (~> 0.1)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.6)
     unicode-display_width (1.6.1)
     vcr (5.0.0)
     virtus (1.0.5)
@@ -530,6 +546,7 @@ DEPENDENCIES
   devise_invitable
   dotenv-rails
   enumerize
+  eventbrite_sdk
   factory_bot_rails
   font-awesome-rails
   friendly_id (~> 5.3.0)

app/models/calendar_parser.rb

@@ -2,7 +2,7 @@ class CalendarParser
   class UnsupportedFeed < StandardError; end
   class InaccessibleFeed < StandardError; end
 
-  PARSERS = [Parsers::ManchesterUni, Parsers::Zarts, Parsers::Facebook, Parsers::Ics].freeze
+  PARSERS = [Parsers::ManchesterUni, Parsers::Zarts, Parsers::Facebook, Parsers::Ics, Parsers::Eventbrite].freeze
 
   def initialize(calendar, options={})
     @calendar = calendar

app/models/events/base.rb

@@ -15,6 +15,7 @@ def rrule
     end
 
     def sanitize_invalid_char(input)
+      input = I18n.transliterate(input)
       input.encode('utf-8', :invalid => :replace, :undef => :replace, :replace => '')
     end
 
@@ -85,7 +86,7 @@ def ip_class
     end
 
     def private?
-      ip_class&.casecmp('private')&.zero? || (@event.description&.include?('#placecal-ignore'))
+      ip_class&.casecmp('private')&.zero? || (description&.include?('#placecal-ignore'))
     end
   end
 end

app/models/events/eventbrite_event.rb

@@ -0,0 +1,62 @@
+# frozen_string_literal: true
+
+module Events
+  class EventbriteEvent < Base
+    def initialize(event)
+      @event = event
+    end
+
+    def uid
+      @event['id']
+    end
+
+    def summary
+      @event['name']['text']
+    end
+
+    def description
+      @event['description']['text']
+    end
+
+    def place
+      @place ||= @event['venue']
+    end
+
+    def location
+      return if place.blank?
+      address = place['address']
+
+      if address.present?
+        [ place['name'],
+          address['address_1'],
+          address['address_2'],
+          address['city'],
+          address['region'],
+          address['postal_code']
+        ].reject(&:blank?).join(', ')
+      else
+        place['name']
+      end
+    end
+
+    def dtstart
+      DateTime.parse(@event['start']['local'])
+    rescue StandardError
+      nil
+    end
+
+    def dtend
+      DateTime.parse(@event['end']['local'])
+    rescue StandardError
+      nil
+    end
+
+    def occurrences_between(*)
+      #TODO: Expand when multi-day events supported
+      @occurrences = []
+      @occurrences << Dates.new(dtstart, dtend)
+      @occurrences
+    end
+
+  end
+end

app/models/parsers/eventbrite.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+# In order for a parser to be recognized, it must be added
+# to the PARSERS constant list in app/models/calendar_parser.rb.
+# Parent parser classes should not be added.
+
+module Parsers
+  class Eventbrite < Base
+    def self.whitelist_pattern
+      /https:\/\/www.eventbrite\.(com|co.uk)\/o\/[A-Za-z0-9-]+/
+    end
+
+    def organizer_id
+      path = URI.parse(@url).path
+      path.split('/').last.split('-').last
+    end
+
+    def download_calendar
+      EventbriteSDK.token = ENV['EVENTBRITE_TOKEN']
+
+      @events = []
+      results = EventbriteSDK::Organizer.retrieve(id: organizer_id).events.with_expansion(:venue).page(1)
+
+      loop do
+        @events += results
+        results = results.next_page 
+        break if results.blank?
+      end
+
+      @events
+    end
+
+    def import_events_from(data)
+      data.map { |d|  Events::EventbriteEvent.new(d) }
+    end
+  end
+end

app/models/partner.rb

@@ -119,6 +119,10 @@ def to_s
   #   errors.add(:_, "Select at least one Tag") if tag_ids.blank?
   # end
 
+  def should_generate_new_friendly_id?
+    slug.blank?
+  end
+
   def permalink
     "https://placecal.org/partners/#{id}"
   end

app/views/admin/sites/_form.html.erb

@@ -1,4 +1,5 @@
 <%= simple_form_for [:admin, @site] do |f| %>
+  <%= render_component "error", object: @site %>
   <%= f.input :name %>
   <%= f.input :place_name %>
   <%= f.input :tagline %>

test/models/calendar_parser_test.rb

@@ -118,6 +118,22 @@ class CalendarParserTest < ActiveSupport::TestCase
     end
   end
 
+  test 'imports eventbrite calendars' do
+    calendar = create(:calendar, name: 'Eventbrite - BAVS',
+                                 source: 'https://www.eventbrite.co.uk/o/berwickshire-association-for-voluntary-service-15751503063')
+
+    VCR.use_cassette('Eventbrite calendar') do
+      output = CalendarParser.new(calendar).parse
+      events = output.events
+      first_event = events.first
+      last_event = events.last
+
+      assert_equal 41, events.count
+      assert_equal 'BAVS Forum: Supporting Positive Pathways – Action Research Event', first_event.summary
+      assert_equal 'Vision 4 Eyemouth', last_event.summary
+    end
+  end
+
   test 'does not import if checksum is the same' do
     calendar = create(:calendar, name: 'Z-Arts',
                                  last_checksum: 'd1a94a9869af91d0548a1faf0ded91d7',