From e8a892c29aed9b08f800878ad4d6e789f9571b64 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Tue, 23 Jul 2019 21:56:21 +0200
Subject: modify /payback API and test usage of that API to pass/return
 additional information required when dealing with payback of refreshed coins

---
 src/include/taler_exchange_service.h | 6 +++++-
 src/include/taler_testing_lib.h      | 6 +++---
 2 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'src/include')

diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
index 7fc7a5690..7bcfee9e4 100644
--- a/src/include/taler_exchange_service.h
+++ b/src/include/taler_exchange_service.h
@@ -1651,7 +1651,8 @@ struct TALER_EXCHANGE_PaybackHandle;
  * @param amount amount the exchange will wire back for this coin,
  *        on error the total balance remaining, or NULL
  * @param timestamp what time did the exchange receive the /payback request
- * @param reserve_pub public key of the reserve receiving the payback
+ * @param reserve_pub public key of the reserve receiving the payback, NULL if refreshed or on error
+ * @param old_coin_pub public key of the dirty coin, NULL if not refreshed or on error
  * @param full_response full response from the exchange (for logging, in case of errors)
  */
 typedef void
@@ -1661,6 +1662,7 @@ typedef void
                                          const struct TALER_Amount *amount,
                                          struct GNUNET_TIME_Absolute timestamp,
                                          const struct TALER_ReservePublicKeyP *reserve_pub,
+                                         const struct TALER_CoinSpendPublicKeyP *old_coin_pub,
                                          const json_t *full_response);
 
 
@@ -1673,6 +1675,7 @@ typedef void
  * @param pk kind of coin to pay back
  * @param denom_sig signature over the coin by the exchange using @a pk
  * @param ps secret internals of the original planchet
+ * @param was_refreshed #GNUNET_YES if the coin in @a ps was refreshed
  * @param payback_cb the callback to call when the final result for this request is available
  * @param payback_cb_cls closure for @a payback_cb
  * @return NULL
@@ -1684,6 +1687,7 @@ TALER_EXCHANGE_payback (struct TALER_EXCHANGE_Handle *exchange,
                         const struct TALER_EXCHANGE_DenomPublicKey *pk,
                         const struct TALER_DenominationSignature *denom_sig,
                         const struct TALER_PlanchetSecretsP *ps,
+                        int was_refreshed,
                         TALER_EXCHANGE_PaybackResultCallback payback_cb,
                         void *payback_cb_cls);
 
diff --git a/src/include/taler_testing_lib.h b/src/include/taler_testing_lib.h
index beb28f7a0..c08cfdc5c 100644
--- a/src/include/taler_testing_lib.h
+++ b/src/include/taler_testing_lib.h
@@ -1388,14 +1388,15 @@ TALER_TESTING_cmd_refund (const char *label,
  *        the index of the coin using "$LABEL#$INDEX" syntax.
  *        Here, $INDEX must be a non-negative number.
  * @param amount denomination to pay back.
- *
+ * @param NULL if coin was not refreshed, otherwise label of the melt operation
  * @return the command.
  */
 struct TALER_TESTING_Command
 TALER_TESTING_cmd_payback (const char *label,
                            unsigned int expected_response_code,
                            const char *coin_reference,
-                           const char *amount);
+                           const char *amount,
+                           const char *melt_reference);
 
 
 /**
@@ -1406,7 +1407,6 @@ TALER_TESTING_cmd_payback (const char *label,
  * @param coin_reference reference to a CMD that will offer the
  *        denomination to revoke.
  * @param config_filename configuration file name.
- *
  * @return the command.
  */
 struct TALER_TESTING_Command
-- 
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