class KPM::TenantConfig

def call_client(key_prefix)
  
  KillBillClient.url = @killbill_url
  options = {
    :username => @killbill_user,
    :password => @killbill_password,
    :api_key => @killbill_api_key,
    :api_secret => @killbill_api_secrets
  }
   
  tenant_config_data = KillBillClient::Model::Tenant.search_tenant_config(key_prefix, options)
  
  tenant_config_data
end

def export(key_prefix = nil)
  export_data = fetch_export_data(key_prefix)
  
  if export_data.size == 0
    raise Interrupt, 'key_prefix not found'
  end
  
  export_file = store_into_file(export_data)
  if not File.exist?(export_file)
    raise Interrupt, 'key_prefix not found'
  else
    @logger.info "\e[32mData exported under #{export_file}\e[0m"
  end
  export_file
end

def fetch_export_data(key_prefix)
  tenant_config = []
  pefixes = key_prefix.nil? ? KEY_PREFIXES : [key_prefix]
  
  pefixes.each do |prefix|
     
     config_data = call_client(prefix)
     
     if config_data.size > 0
       config_data.each {|data| tenant_config << data }
       @logger.info "Data for key prefix \e[1m#{prefix.to_s}\e[0m was \e[1mfound and is ready to be exported\e[0m."
     else
       @logger.info "Data for key prefix \e[1m#{prefix.to_s}\e[0m was \e[31mnot found\e[0m." 
     end
  end
  
  tenant_config
end

def initialize(killbill_api_credentials = nil, killbill_credentials = nil, killbill_url = nil, logger = nil)
  @killbill_api_key = KILLBILL_API_KEY
  @killbill_api_secrets = KILLBILL_API_SECRET
  @killbill_url = KILLBILL_URL
  @killbill_user = KILLBILL_USER
  @killbill_password = KILLBILL_PASSWORD
  @logger = logger
  set_killbill_options(killbill_api_credentials,killbill_credentials,killbill_url)
end

def set_killbill_options(killbill_api_credentials, killbill_credentials, killbill_url)
  if not killbill_api_credentials.nil?
    @killbill_api_key = killbill_api_credentials[0]
    @killbill_api_secrets = killbill_api_credentials[1]
  end
  if not killbill_credentials.nil?
    @killbill_user = killbill_credentials[0]
    @killbill_password = killbill_credentials[1]
  end
  if not killbill_url.nil?
    @killbill_url = killbill_url
  end
end

def store_into_file(export_data)
  export_file = TMP_DIR + File::SEPARATOR + 'kbdump'
  File.open(export_file, 'w') { |io| io.puts export_data.to_json }
  export_file
end