-- Allow to use different protocols:

DROP FUNCTION auth.check_contact(player_name_param CITEXT, otp CHAR(6));
CREATE OR REPLACE FUNCTION auth.check_contact(player_name_param CITEXT, otp CHAR(6))
RETURNS TABLE (
 protocol auth.contact_protocol,
 address CITEXT) AS
$$
BEGIN
 CREATE TEMP TABLE tmp_cnts ON COMMIT DROP AS
 SELECT c.protocol, c.address
 FROM auth.users u
 LEFT JOIN auth.contacts c ON c.player_name = u.player_name
  AND c.is_active = TRUE
  AND c.delete_ts IS NULL
 WHERE u.player_name = player_name_param;
 
 IF EXISTS (SELECT * FROM tmp_cnts t WHERE t.protocol IS NOT NULL AND t.address IS NOT NULL) THEN
  WITH hashed_otp AS (VALUES (crypt(otp, gen_salt('bf', 8))))
  INSERT INTO auth.otp (player_name, otp, create_ts)
  VALUES (player_name_param, (TABLE hashed_otp), NOW()::timestamp)
  ON CONFLICT (player_name) DO UPDATE SET otp = (TABLE hashed_otp), create_ts = NOW()::timestamp;
 END IF;

 RETURN QUERY SELECT *
 FROM tmp_cnts;
END
$$ LANGUAGE plpgsql;