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/*
This file is part of TALER
Copyright (C) 2023 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_lookup_deposits_by_order.c
* @brief Implementation of the lookup_deposits_by_order function for Postgres
* @author Iván Ávalos
*/
#include "platform.h"
#include <taler/taler_error_codes.h>
#include <taler/taler_dbevents.h>
#include <taler/taler_pq_lib.h>
#include "pg_lookup_deposits_by_order.h"
#include "pg_helper.h"
/**
* Closure for lookup_deposits_by_order_cb().
*/
struct LookupDepositsByOrderContext
{
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Function to call with all results.
*/
TALER_MERCHANTDB_DepositedCoinsCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Set to the query result.
*/
enum GNUNET_DB_QueryStatus qs;
};
/**
* Function to be called with the results of a SELECT statement
* that has returned @a num_results results.
*
* @param cls of type `struct LookupDepositsByOrderContext *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
lookup_deposits_by_order_cb (void *cls,
PGresult *result,
unsigned int num_results)
{
struct LookupDepositsByOrderContext *ldoc = cls;
for (unsigned int i = 0; i<num_results; i++)
{
uint64_t deposit_serial;
char *exchange_url;
struct TALER_MerchantWireHashP h_wire;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct TALER_Amount amount_with_fee;
struct TALER_Amount deposit_fee;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("deposit_serial",
&deposit_serial),
GNUNET_PQ_result_spec_string ("exchange_url",
&exchange_url),
GNUNET_PQ_result_spec_auto_from_type ("h_wire",
&h_wire),
TALER_PQ_result_spec_amount_with_currency ("amount_with_fee",
&amount_with_fee),
TALER_PQ_result_spec_amount_with_currency ("deposit_fee",
&deposit_fee),
GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
&coin_pub),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
ldoc->qs = GNUNET_DB_STATUS_HARD_ERROR;
return;
}
ldoc->cb (ldoc->cb_cls,
deposit_serial,
exchange_url,
&h_wire,
&amount_with_fee,
&deposit_fee,
&coin_pub);
GNUNET_PQ_cleanup_result (rs); /* technically useless here */
}
ldoc->qs = num_results;
}
enum GNUNET_DB_QueryStatus
TMH_PG_lookup_deposits_by_order (void *cls,
uint64_t order_serial,
TALER_MERCHANTDB_DepositedCoinsCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct LookupDepositsByOrderContext ldoc = {
.pg = pg,
.cb = cb,
.cb_cls = cb_cls
};
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_uint64 (&order_serial),
GNUNET_PQ_query_param_end
};
enum GNUNET_DB_QueryStatus qs;
check_connection (pg);
PREPARE (pg,
"lookup_deposits_by_order",
"SELECT"
" dep.deposit_serial"
",mcon.exchange_url"
",acc.h_wire"
",dep.amount_with_fee"
",dep.deposit_fee"
",dep.coin_pub"
" FROM merchant_deposits dep"
" JOIN merchant_deposit_confirmations mcon"
" USING(deposit_confirmation_serial)"
" JOIN merchant_accounts acc"
" USING (account_serial)"
" WHERE mcon.order_serial=$1");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"lookup_deposits_by_order",
params,
&lookup_deposits_by_order_cb,
&ldoc);
if (qs < 0)
return qs;
return ldoc.qs;
}
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