PNC course tracker

course_tracker

#Purdue North Central doesn't have waitlists, but you can get notified of seat availability with this app
require 'rubygems'
require 'open-uri'
require 'hpricot'
require 'twilio-ruby'

availability = 0

puts "Enter the CRN for the PNC course you would like to track:"
crn = gets.chomp.to_s
url = "https://fusion-ssbprod.pnc.edu:8910/dbServer_prod/bwckschd.p_disp_detail_sched?term_in=201510&crn_in=#{crn}"

while availability == 0
  sleep 10
  doc = open(url) { |f| Hpricot(f) }

  course_stats = (doc/"table//table//td").collect do |k|
    k.inner_html.split(',')
  end.flatten.compact

  availability = course_stats[3].to_i

  if availability == 0
    puts "There are no available seats."
    puts "Rechecking in 10 seconds."
  elsif availability == 1
    puts "There is one available seat."
  else
    puts "There are #{availability} seats available."
  end


  if availability > 0
    account_sid = "000000000000000" #App sid
    auth_token = "000000000000000" #Auth token
    client = Twilio::REST::Client.new account_sid, auth_token
    
    #enter app phone number here
    from = "+10000000000"

    recipients = {
         #enter recipient phone numbers and names here
         "+100000000000" => "Melanie"
    }
    recipients.each do |key, value|
      client.account.messages.create(
      :from => from,
      :to => key,
      :body => "Hey #{value}, there is space available in that course!"
      )
      puts "Sent message to #{value}"
    end
  end
end