class SMARTAppLaunch::JWKS

def default_jwks_path
  @default_jwks_path ||= File.join(__dir__, 'smart_jwks.json')
end

def jwks
  @jwks ||= JWT::JWK::Set.new(JSON.parse(File.read(jwks_path)))
end

def jwks_json
  @jwks_json ||=
    JSON.pretty_generate(
      { keys: jwks.export[:keys].select { |key| key[:key_ops]&.include?('verify') } }
    )
end

def jwks_path
  @jwks_path ||=
    ENV.fetch('SMART_JWKS_PATH', default_jwks_path)
end