From c7e2d206bab7f06375be2154b323ad429d13a9e7 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <grothoff@gnunet.org>
Date: Mon, 21 Mar 2022 03:59:31 +0100
Subject: add logic to check timestamp, revise history balance calculation
 logic in client

---
 src/include/taler_exchange_service.h | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

(limited to 'src/include/taler_exchange_service.h')

diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
index f59e1b46c..41f01c97a 100644
--- a/src/include/taler_exchange_service.h
+++ b/src/include/taler_exchange_service.h
@@ -1583,10 +1583,21 @@ struct TALER_EXCHANGE_ReserveStatus
     {
 
       /**
-       * Reserve balance.
+       * Current reserve balance.  May not be the difference between
+       * @e total_in and @e total_out because the @e may be truncated.
        */
       struct TALER_Amount balance;
 
+      /**
+       * Total of all inbound transactions in @e history.
+       */
+      struct TALER_Amount total_in;
+
+      /**
+       * Total of all outbound transactions in @e history.
+       */
+      struct TALER_Amount total_out;
+
       /**
        * Reserve history.
        */
@@ -1687,10 +1698,22 @@ struct TALER_EXCHANGE_ReserveHistory
     {
 
       /**
-       * Reserve balance.
+       * Reserve balance. May not be the difference between
+       * @e total_in and @e total_out because the @e may be truncated
+       * due to expiration.
        */
       struct TALER_Amount balance;
 
+      /**
+       * Total of all inbound transactions in @e history.
+       */
+      struct TALER_Amount total_in;
+
+      /**
+       * Total of all outbound transactions in @e history.
+       */
+      struct TALER_Amount total_out;
+
       /**
        * Reserve history.
        */
@@ -2685,7 +2708,8 @@ TALER_EXCHANGE_verify_coin_history (
  * @param history JSON array with the history
  * @param reserve_pub public key of the reserve to inspect
  * @param currency currency we expect the balance to be in
- * @param[out] balance final balance
+ * @param[out] total_in set to value of credits to reserve
+ * @param[out] total_out set to value of debits from reserve
  * @param history_length number of entries in @a history
  * @param[out] rhistory array of length @a history_length, set to the
  *             parsed history entries
@@ -2699,7 +2723,8 @@ TALER_EXCHANGE_parse_reserve_history (
   const json_t *history,
   const struct TALER_ReservePublicKeyP *reserve_pub,
   const char *currency,
-  struct TALER_Amount *balance,
+  struct TALER_Amount *total_in,
+  struct TALER_Amount *total_out,
   unsigned int history_length,
   struct TALER_EXCHANGE_ReserveHistoryEntry *rhistory);
 
-- 
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