Complete teams meeting creation and token refresh

app/controllers/broadcasts_controller.rb

@@ -1,4 +1,5 @@
 class BroadcastsController < ApplicationController
+  require 'microsoft_graph'
   layout "project"
 
   before_action :set_project
@@ -17,6 +18,25 @@ class BroadcastsController < ApplicationController
   def create
     @broadcast.attributes = broadcast_params
 
+    begin
+      graph_api = MicrosoftGraph.new(
+        current_user,
+        ENV['AZURE_CLIENT_ID'],
+        ENV['AZURE_CLIENT_SECRET'],
+        ENV['AZURE_TENANT_ID'],
+        ENV['AZURE_SCOPES']
+      )
+
+      subject = "#{@broadcast.name} Online Meeting"
+      teams_meeting = graph_api.create_teams_meeting(subject)
+      join_url = teams_meeting['joinUrl']
+      @broadcast.microsoft_teams_meeting_url = join_url if join_url.present?
+    rescue StandardError => e
+      @broadcast.errors[:base] << e.message
+      render :new
+      return
+    end
+
     if @broadcast.save
       log_create_analytics
       redirect_to [@project, :broadcasts], notice: t(".notice")
@@ -27,7 +47,7 @@ class BroadcastsController < ApplicationController
 
   def show
     # @conference_url = url_for [@broadcast.project, @broadcast, :zoom_meeting]
-    @conference_url = url_for [@broadcast.project, @broadcast, :microsoft_teams_meeting]
+    @conference_url = @broadcast.microsoft_teams_meeting_url
     @recordings = @broadcast.broadcast_recordings.order_by_recent.paginate(page: params[:page])
     @files = @broadcast.files.order("created_at DESC").paginate(page: params[:files_page])
     render layout: 'application'