DEV: Update plugin to match latest guidelines (#390)

- Define extension modules
- Use different files instead of plugin.rb
- Make sure plugin is disabled according to the setting

app/controllers/admin/admin_discourse_calendar_controller.rb

@@ -1,11 +0,0 @@
-# frozen_string_literal: true
-
-module Admin::DiscourseCalendar
-  class AdminDiscourseCalendarController < Admin::AdminController
-    before_action :ensure_calendar_enabled
-
-    def ensure_calendar_enabled
-      raise Discourse::NotFound if !SiteSetting.calendar_enabled
-    end
-  end
-end

app/controllers/admin/discourse_calendar/admin_holidays_controller.rb

@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 
 module Admin::DiscourseCalendar
-  class AdminHolidaysController < AdminDiscourseCalendarController
+  class AdminHolidaysController < Admin::AdminController
+    requires_plugin DiscourseCalendar::PLUGIN_NAME
+
     def index
       region_code = params[:region_code]
 

app/controllers/discourse_post_event_controller.rb

@@ -2,7 +2,11 @@
 
 module DiscoursePostEvent
   class DiscoursePostEventController < ::ApplicationController
+    requires_plugin DiscourseCalendar::PLUGIN_NAME
     before_action :ensure_discourse_post_event_enabled
+
+    private
+
     def ensure_discourse_post_event_enabled
       raise Discourse::NotFound if !SiteSetting.discourse_post_event_enabled
     end

lib/discourse_post_event/export_csv_controller_extension.rb

@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+module DiscoursePostEvent
+  module ExportCsvControllerExtension
+    def export_entity
+      if post_event_export? && ensure_can_export_post_event
+        Jobs.enqueue(
+          :export_csv_file,
+          entity: export_params[:entity],
+          user_id: current_user.id,
+          args: export_params[:args],
+        )
+        StaffActionLogger.new(current_user).log_entity_export(export_params[:entity])
+        render json: success_json
+      else
+        super
+      end
+    end
+
+    private
+
+    def export_params
+      if post_event_export?
+        @_export_params ||=
+          begin
+            params.require(:entity)
+            params.permit(:entity, args: %i[id]).to_h
+          end
+      else
+        super
+      end
+    end
+
+    def post_event_export?
+      params[:entity] === "post_event"
+    end
+
+    def ensure_can_export_post_event
+      return if !SiteSetting.discourse_post_event_enabled
+
+      post_event = DiscoursePostEvent::Event.find(export_params[:args][:id])
+      post_event && guardian.can_act_on_discourse_post_event?(post_event)
+    end
+  end
+end

lib/discourse_post_event/export_csv_file_extension.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+module DiscoursePostEvent
+  module ExportPostEventCsvReportExtension
+    def post_event_export(&block)
+      return enum_for(:post_event_export) unless block_given?
+
+      guardian = Guardian.new(current_user)
+
+      event = DiscoursePostEvent::Event.includes(invitees: :user).find(@extra[:id])
+
+      guardian.ensure_can_act_on_discourse_post_event!(event)
+
+      event
+        .invitees
+        .order(:id)
+        .each do |invitee|
+          yield(
+            [
+              invitee.user.username,
+              DiscoursePostEvent::Invitee.statuses[invitee.status],
+              invitee.created_at,
+              invitee.updated_at,
+            ]
+          )
+        end
+    end
+
+    def get_header(entity)
+      if SiteSetting.discourse_post_event_enabled && entity === "post_event"
+        %w[username status first_answered_at last_updated_at]
+      else
+        super
+      end
+    end
+  end
+end

lib/discourse_post_event/post_extension.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module DiscoursePostEvent
+  module PostExtension
+    def self.prepended(base)
+      base.class_eval do
+        has_one :event,
+                dependent: :destroy,
+                class_name: "DiscoursePostEvent::Event",
+                foreign_key: :id
+
+        validate :valid_event
+      end
+    end
+
+    def valid_event
+      return unless self.raw_changed?
+
+      validator = DiscoursePostEvent::EventValidator.new(self)
+      validator.validate_event
+    end
+  end
+end

plugin.rb

@@ -12,7 +12,7 @@ $LOAD_PATH.unshift(libdir) unless $LOAD_PATH.include?(libdir)
 
 gem "rrule", "0.4.4", require: false
 
-load File.expand_path("../lib/calendar_settings_validator.rb", __FILE__)
+require_relative "lib/calendar_settings_validator.rb"
 
 enabled_site_setting :calendar_enabled
 
@@ -50,6 +50,7 @@ after_initialize do
   add_to_serializer :basic_category, :sort_topics_by_event_start_date do
     object.custom_fields["sort_topics_by_event_start_date"]
   end
+
   add_to_serializer :basic_category, :disable_topic_resorting do
     object.custom_fields["disable_topic_resorting"]
   end
@@ -74,22 +75,22 @@ after_initialize do
   end
 
   module ::DiscourseCalendar
-    PLUGIN_NAME ||= "discourse-calendar"
+    PLUGIN_NAME = "discourse-calendar"
 
     # Type of calendar ('static' or 'dynamic')
-    CALENDAR_CUSTOM_FIELD ||= "calendar"
+    CALENDAR_CUSTOM_FIELD = "calendar"
 
     # User custom field set when user is on holiday
-    HOLIDAY_CUSTOM_FIELD ||= "on_holiday"
+    HOLIDAY_CUSTOM_FIELD = "on_holiday"
 
     # List of all users on holiday
-    USERS_ON_HOLIDAY_KEY ||= "users_on_holiday"
+    USERS_ON_HOLIDAY_KEY = "users_on_holiday"
 
     # User region used in finding holidays
-    REGION_CUSTOM_FIELD ||= "holidays-region"
+    REGION_CUSTOM_FIELD = "holidays-region"
 
     # List of groups
-    GROUP_TIMEZONES_CUSTOM_FIELD ||= "group-timezones"
+    GROUP_TIMEZONES_CUSTOM_FIELD = "group-timezones"
 
     def self.users_on_holiday
       PluginStore.get(PLUGIN_NAME, USERS_ON_HOLIDAY_KEY) || []
@@ -106,11 +107,11 @@ after_initialize do
   end
 
   module ::DiscoursePostEvent
-    PLUGIN_NAME ||= "discourse-post-event"
+    PLUGIN_NAME = "discourse-post-event"
 
     # Topic where op has a post event custom field
-    TOPIC_POST_EVENT_STARTS_AT ||= "TopicEventStartsAt"
-    TOPIC_POST_EVENT_ENDS_AT ||= "TopicEventEndsAt"
+    TOPIC_POST_EVENT_STARTS_AT = "TopicEventStartsAt"
+    TOPIC_POST_EVENT_ENDS_AT = "TopicEventEndsAt"
 
     class Engine < ::Rails::Engine
       engine_name PLUGIN_NAME
@@ -123,11 +124,10 @@ after_initialize do
   add_admin_route "admin.calendar", "calendar"
 
   %w[
-    ../app/controllers/admin/admin_discourse_calendar_controller.rb
-    ../app/controllers/admin/discourse_calendar/admin_holidays_controller.rb
-    ../app/models/discourse_calendar/disabled_holiday.rb
-    ../app/services/discourse_calendar/holiday.rb
-  ].each { |path| load File.expand_path(path, __FILE__) }
+    app/controllers/admin/discourse_calendar/admin_holidays_controller.rb
+    app/models/discourse_calendar/disabled_holiday.rb
+    app/services/discourse_calendar/holiday.rb
+  ].each { |path| require_relative path }
 
   Discourse::Application.routes.append do
     mount ::DiscourseCalendar::Engine, at: "/"
@@ -147,23 +147,26 @@ after_initialize do
   # DISCOURSE POST EVENT
 
   %w[
-    ../app/controllers/discourse_post_event_controller.rb
-    ../app/controllers/discourse_post_event/invitees_controller.rb
-    ../app/controllers/discourse_post_event/events_controller.rb
-    ../app/controllers/discourse_post_event/upcoming_events_controller.rb
-    ../app/models/discourse_post_event/event.rb
-    ../app/models/discourse_post_event/event_date.rb
-    ../app/models/discourse_post_event/invitee.rb
-    ../lib/discourse_post_event/event_parser.rb
-    ../lib/discourse_post_event/event_validator.rb
-    ../lib/discourse_post_event/rrule_generator.rb
-    ../jobs/regular/discourse_post_event/bulk_invite.rb
-    ../jobs/regular/discourse_post_event/send_reminder.rb
-    ../jobs/regular/discourse_post_event/bump_topic.rb
-    ../lib/discourse_post_event/event_finder.rb
-    ../app/serializers/discourse_post_event/invitee_serializer.rb
-    ../app/serializers/discourse_post_event/event_serializer.rb
-  ].each { |path| load File.expand_path(path, __FILE__) }
+    app/controllers/discourse_post_event_controller.rb
+    app/controllers/discourse_post_event/events_controller.rb
+    app/controllers/discourse_post_event/invitees_controller.rb
+    app/controllers/discourse_post_event/upcoming_events_controller.rb
+    app/models/discourse_post_event/event_date.rb
+    app/models/discourse_post_event/event.rb
+    app/models/discourse_post_event/invitee.rb
+    app/serializers/discourse_post_event/event_serializer.rb
+    app/serializers/discourse_post_event/invitee_serializer.rb
+    jobs/regular/discourse_post_event/bulk_invite.rb
+    jobs/regular/discourse_post_event/bump_topic.rb
+    jobs/regular/discourse_post_event/send_reminder.rb
+    lib/discourse_post_event/event_finder.rb
+    lib/discourse_post_event/event_parser.rb
+    lib/discourse_post_event/event_validator.rb
+    lib/discourse_post_event/export_csv_controller_extension.rb
+    lib/discourse_post_event/export_csv_file_extension.rb
+    lib/discourse_post_event/post_extension.rb
+    lib/discourse_post_event/rrule_generator.rb
+  ].each { |path| require_relative path }
 
   ::ActionController::Base.prepend_view_path File.expand_path("../app/views", __FILE__)
 
@@ -185,16 +188,9 @@ after_initialize do
   end
 
   reloadable_patch do
-    Post.class_eval do
-      has_one :event, dependent: :destroy, class_name: "DiscoursePostEvent::Event", foreign_key: :id
-
-      validate :valid_event
-      def valid_event
-        return unless self.raw_changed?
-        validator = DiscoursePostEvent::EventValidator.new(self)
-        validator.validate_event
-      end
-    end
+    ExportCsvController.class_eval { prepend DiscoursePostEvent::ExportCsvControllerExtension }
+    Jobs::ExportCsvFile.class_eval { prepend DiscoursePostEvent::ExportPostEventCsvReportExtension }
+    Post.class_eval { prepend DiscoursePostEvent::PostExtension }
   end
 
   add_to_class(:user, :can_create_discourse_post_event?) do
@@ -317,20 +313,20 @@ after_initialize do
   # DISCOURSE CALENDAR
 
   %w[
-    ../app/models/calendar_event.rb
-    ../app/serializers/user_timezone_serializer.rb
-    ../jobs/scheduled/create_holiday_events.rb
-    ../jobs/scheduled/delete_expired_event_posts.rb
-    ../jobs/scheduled/update_holiday_usernames.rb
-    ../jobs/scheduled/monitor_event_dates.rb
-    ../lib/calendar_validator.rb
-    ../lib/calendar.rb
-    ../lib/event_validator.rb
-    ../lib/group_timezones.rb
-    ../lib/time_sniffer.rb
-    ../lib/users_on_holiday.rb
-    ../lib/holiday_status.rb
-  ].each { |path| load File.expand_path(path, __FILE__) }
+    app/models/calendar_event.rb
+    app/serializers/user_timezone_serializer.rb
+    jobs/scheduled/create_holiday_events.rb
+    jobs/scheduled/delete_expired_event_posts.rb
+    jobs/scheduled/monitor_event_dates.rb
+    jobs/scheduled/update_holiday_usernames.rb
+    lib/calendar_validator.rb
+    lib/calendar.rb
+    lib/event_validator.rb
+    lib/group_timezones.rb
+    lib/holiday_status.rb
+    lib/time_sniffer.rb
+    lib/users_on_holiday.rb
+  ].each { |path| require_relative path }
 
   register_post_custom_field_type(DiscourseCalendar::CALENDAR_CUSTOM_FIELD, :string)
   register_post_custom_field_type(DiscourseCalendar::GROUP_TIMEZONES_CUSTOM_FIELD, :json)
@@ -476,92 +472,6 @@ after_initialize do
 
   add_to_serializer(:site, :include_users_on_holiday?) { scope.is_staff? }
 
-  reloadable_patch do
-    module DiscoursePostEvent::ExportCsvControllerExtension
-      def export_entity
-        if post_event_export? && ensure_can_export_post_event
-          Jobs.enqueue(
-            :export_csv_file,
-            entity: export_params[:entity],
-            user_id: current_user.id,
-            args: export_params[:args],
-          )
-          StaffActionLogger.new(current_user).log_entity_export(export_params[:entity])
-          render json: success_json
-        else
-          super
-        end
-      end
-
-      private
-
-      def export_params
-        if post_event_export?
-          @_export_params ||=
-            begin
-              params.require(:entity)
-              params.permit(:entity, args: %i[id]).to_h
-            end
-        else
-          super
-        end
-      end
-
-      def post_event_export?
-        params[:entity] === "post_event"
-      end
-
-      def ensure_can_export_post_event
-        return if !SiteSetting.discourse_post_event_enabled
-
-        post_event = DiscoursePostEvent::Event.find(export_params[:args][:id])
-        post_event && guardian.can_act_on_discourse_post_event?(post_event)
-      end
-    end
-
-    require_dependency "export_csv_controller"
-    class ::ExportCsvController
-      prepend DiscoursePostEvent::ExportCsvControllerExtension
-    end
-
-    module ExportPostEventCsvReportExtension
-      def post_event_export(&block)
-        return enum_for(:post_event_export) unless block_given?
-
-        guardian = Guardian.new(current_user)
-
-        event = DiscoursePostEvent::Event.includes(invitees: :user).find(@extra[:id])
-
-        guardian.ensure_can_act_on_discourse_post_event!(event)
-
-        event
-          .invitees
-          .order(:id)
-          .each do |invitee|
-            yield(
-              [
-                invitee.user.username,
-                DiscoursePostEvent::Invitee.statuses[invitee.status],
-                invitee.created_at,
-                invitee.updated_at,
-              ]
-            )
-          end
-      end
-
-      def get_header(entity)
-        if SiteSetting.discourse_post_event_enabled && entity === "post_event"
-          %w[username status first_answered_at last_updated_at]
-        else
-          super
-        end
-      end
-    end
-
-    class Jobs::ExportCsvFile
-      prepend ExportPostEventCsvReportExtension
-    end
-
   on(:reduce_cooked) do |fragment, post|
     if SiteSetting.discourse_post_event_enabled
       fragment
@@ -647,7 +557,6 @@ after_initialize do
       field :topic_id, component: :text
     end
   end
-  end
 
   query =
     Proc.new do |notifications, data|