demarches-normaliennes/app/lib/api_entreprise/api.rb

class ApiEntreprise::API
  class << self
    attr_accessor :token
  end

  ENTREPRISE_RESOURCE_NAME = "entreprises"
  ETABLISSEMENT_RESOURCE_NAME = "etablissements"
  EXERCICES_RESOURCE_NAME = "exercices"
  RNA_RESOURCE_NAME = "associations"

  TIMEOUT = 15

  def initialize
  end

  def self.entreprise(siren, procedure_id)
    call(ENTREPRISE_RESOURCE_NAME, siren, procedure_id)
  end

  def self.etablissement(siret, procedure_id)
    call(ETABLISSEMENT_RESOURCE_NAME, siret, procedure_id)
  end

  def self.exercices(siret, procedure_id)
    call(EXERCICES_RESOURCE_NAME, siret, procedure_id)
  end

  def self.rna(siret, procedure_id)
    call(RNA_RESOURCE_NAME, siret, procedure_id)
  end

  def self.call(resource_name, siret_or_siren, procedure_id)
    url = url(resource_name, siret_or_siren)
    params = params(siret_or_siren, procedure_id)

    response = Typhoeus.get(url,
      ssl_verifypeer: false,
      params: params,
      timeout: TIMEOUT)

    # Responses with a 206 codes are sometimes not useable,
    # as the RNA calls often return a 206 with an error message,
    # not a partial response
    if response.success? && response.code != 206
      JSON.parse(response.body, symbolize_names: true)
    else
      raise RestClient::ResourceNotFound
    end
  end

  def self.url(resource_name, siret_or_siren)
    [API_ENTREPRISE_URL, resource_name, siret_or_siren].join("/")
  end

  def self.params(siret_or_siren, procedure_id)
    {
      context: "demarches-simplifiees.fr",
      recipient: siret_or_siren,
      object: "procedure_id: #{procedure_id}",
      token: SIADETOKEN
    }
  end
end