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/*
This file is part of TALER
Copyright (C) 2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
* @file backenddb/pg_insert_pickup.c
* @brief Implementation of the insert_pickup function for Postgres
* @author Christian Grothoff
*/
#include "platform.h"
#include <taler/taler_error_codes.h>
#include <taler/taler_dbevents.h>
#include <taler/taler_pq_lib.h>
#include "pg_insert_pickup.h"
#include "pg_helper.h"
enum GNUNET_DB_QueryStatus
TMH_PG_insert_pickup (
void *cls,
const char *instance_id,
const struct TALER_RewardIdentifierP *reward_id,
const struct TALER_Amount *total_picked_up,
const struct TALER_PickupIdentifierP *pickup_id,
const struct TALER_Amount *total_requested)
{
struct PostgresClosure *pg = cls;
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"insert_pickup",
"INSERT INTO merchant_reward_pickups"
"(reward_serial"
",pickup_id"
",amount"
") "
"SELECT"
" reward_serial, $3, $4"
" FROM merchant_rewards"
" JOIN merchant_reward_reserves USING (reserve_serial)"
" WHERE reward_id=$2"
" AND merchant_serial = "
" (SELECT merchant_serial"
" FROM merchant_instances"
" WHERE merchant_id=$1)");
PREPARE (pg,
"update_picked_up_reward",
"UPDATE merchant_rewards SET"
" picked_up=$2"
",was_picked_up = (CAST($2 AS taler_amount) = amount)"
" WHERE reward_id = $1");
PREPARE (pg,
"lookup_picked_up_reserve",
"SELECT"
" reserve_serial"
",rewards_picked_up"
" FROM merchant_reward_reserves"
" JOIN merchant_rewards USING (reserve_serial)"
" WHERE reward_id=$2"
" AND merchant_serial ="
" (SELECT merchant_serial"
" FROM merchant_instances"
" WHERE merchant_id=$1)");
PREPARE (pg,
"update_picked_up_reserve",
"UPDATE merchant_reward_reserves SET"
" rewards_picked_up=$2"
" WHERE reserve_serial = $1");
{
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_string (instance_id),
GNUNET_PQ_query_param_auto_from_type (reward_id),
GNUNET_PQ_query_param_auto_from_type (pickup_id),
TALER_PQ_query_param_amount_tuple (pg->conn,
total_requested),
GNUNET_PQ_query_param_end
};
qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"insert_pickup",
params);
if (0 > qs)
return qs;
}
{
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_auto_from_type (reward_id),
TALER_PQ_query_param_amount_tuple (pg->conn,
total_picked_up),
GNUNET_PQ_query_param_end
};
qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"update_picked_up_reward",
params);
if (0 > qs)
return qs;
}
{
uint64_t reserve_serial;
struct TALER_Amount reserve_picked_up;
{
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_string (instance_id),
GNUNET_PQ_query_param_auto_from_type (reward_id),
GNUNET_PQ_query_param_end
};
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("reserve_serial",
&reserve_serial),
TALER_PQ_RESULT_SPEC_AMOUNT ("rewards_picked_up",
&reserve_picked_up),
GNUNET_PQ_result_spec_end
};
qs = GNUNET_PQ_eval_prepared_singleton_select (pg->conn,
"lookup_picked_up_reserve",
params,
rs);
if (0 > qs)
return qs;
}
if (0 >=
TALER_amount_add (&reserve_picked_up,
&reserve_picked_up,
total_requested))
{
GNUNET_break (0);
return GNUNET_DB_STATUS_HARD_ERROR;
}
{
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&reserve_serial),
TALER_PQ_query_param_amount_tuple (pg->conn,
&reserve_picked_up),
GNUNET_PQ_query_param_end
};
qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
"update_picked_up_reserve",
params);
if (0 > qs)
return qs;
}
}
return qs;
}
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