last course push needs to be removed

unassign_course.rb

require 'litmos/loader'
require 'slack_notifier'

la = LitmosAccount.find ""
loader = Litmos::Loader.new(la)
lai = LitmosAccountInfo.new
account_key = lai.get_account_key(la.id)
bad_push = la.course_pushes.order(created_at: :desc).first
cas = bad_push.results
cas['team_courses'].each do |ca|
   course_id = ca["next_course_id"] 
   curriculum_team_id = ca["curriculum_team_id"]
   ct = Team.find(curriculum_team_id)
   puts "course_id: #{course_id}" 
   puts "curriculum_team_id: #{curriculum_team_id}"
   puts "location team: #{ct.parent.name} - #{ct.parent.id}"

   # get course assignments created recently
   recent_cas = ct.course_assignments.where(created_at: 2.days.ago .. DateTime.now)
   puts "number of recent course assignments: #{recent_cas.count}"
    
   most_recent_ca = recent_cas.first
   puts "BAD COURSE: #{most_recent_ca.course.name} - #{most_recent_ca.course.id}"
   puts "BAD COURSE LITMOS ID: #{most_recent_ca.course.litmos_id}"
    
   # for each language sub team
   # unassign from litmos

   ct.sub_teams.each do |lt|
      puts "language team litmos id: #{lt.litmos_id}" 
      course_assignments = Litmos::Teams.get_course_assignments(loader, lt)
      puts "course assignments from litmos: #{course_assignments}"
      sleep(2.0)
      Litmos::Teams.unassign_courses(loader, lt, [most_recent_ca.course])
      sleep(2.0)
      # send notification
      push_notification = ":black_circle: Unassigned #{most_recent_ca.course.name} from #{ct.parent.name} - #{ct.name} - #{lt.name}"
      SlackNotifier.send_channel_notification(push_notification, lai.get_accounts[account_key.to_sym][:notifications_webhook])
      most_recent_ca.destroy
   end
   puts "------------------"
end