module PowerAPI

# File lib/powerapi.rb, line 15
def authenticate(url, username, password, fetch_transcript=true)
  url = clean_url(url)

  soap_endpoint = url + "/pearson-rest/services/PublicPortalService"

  login_client = Savon.client(
    endpoint: soap_endpoint,
    namespace: "http://publicportal.rest.powerschool.pearson.com/xsd",
    wsse_auth: ["pearson", "pearson"]
  )

  login = login_client.call(:login, message: { username: username, password: password, userType: 2} )

  if login.body[:login_response][:return][:user_session_vo] == nil
    raise PowerAPI::Exception.new(login.body[:login_response][:return][:message_v_os][:description])
  end

  session = login.body[:login_response][:return][:user_session_vo]

  return PowerAPI::Data::Student.new(url, session, fetch_transcript)
end

# File lib/powerapi.rb, line 37
def clean_url(url)
  if url[-1] == "/"
    url = url[0..-2]
  else
    url = url
  end
end

# File lib/powerapi.rb, line 45
def district_lookup(code)
  request = HTTPI::Request.new("https://powersource.pearsonschoolsystems.com/services/rest/remote-device/v2/get-district/" + code)
  request.headers = { "Accept" => "application/json" }

  details = HTTPI.get(request)

  if details.error?
    return false
  end

  details = JSON.parse(details.body)

  district_lookup_url(details["district"]["server"])
end

# File lib/powerapi.rb, line 60
def district_lookup_url(district_server)
  if district_server["sslEnabled"] == true
    url = "https://"
  else
    url = 'http://'
  end

  url += district_server["serverAddress"]

  if (district_server["sslEnabled"] == true and district_server["portNumber"] != 443) or
      (district_server["sslEnabled"] == false and district_server["portNumber"] != 80)

      url += ":" + district_server["portNumber"].to_s
  end

  url
end