From 6991ca011b4f97d24066f82ccd09adde8a692f6a Mon Sep 17 00:00:00 2001
From: Joseph <Joseph.xu@efrei.net>
Date: Mon, 14 Nov 2022 07:35:56 -0500
Subject: remove more functions

---
 src/exchangedb/pg_lookup_wire_transfer.c | 187 +++++++++++++++++++++++++++++++
 1 file changed, 187 insertions(+)
 create mode 100644 src/exchangedb/pg_lookup_wire_transfer.c

(limited to 'src/exchangedb/pg_lookup_wire_transfer.c')

diff --git a/src/exchangedb/pg_lookup_wire_transfer.c b/src/exchangedb/pg_lookup_wire_transfer.c
new file mode 100644
index 000000000..394251702
--- /dev/null
+++ b/src/exchangedb/pg_lookup_wire_transfer.c
@@ -0,0 +1,187 @@
+/*
+   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 exchangedb/pg_lookup_wire_tranfer.c
+ * @brief Implementation of the lookup_wire_tranfer function for Postgres
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_lookup_wire_transfer.h"
+#include "pg_helper.h"
+
+/**
+ * Closure for #handle_wt_result.
+ */
+struct WireTransferResultContext
+{
+  /**
+   * Function to call on each result.
+   */
+  TALER_EXCHANGEDB_AggregationDataCallback cb;
+
+  /**
+   * Closure for @e cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Plugin context.
+   */
+  struct PostgresClosure *pg;
+
+  /**
+   * Set to #GNUNET_SYSERR on serious errors.
+   */
+  int status;
+};
+
+
+/**
+ * Function to be called with the results of a SELECT statement
+ * that has returned @a num_results results.  Helper function
+ * for #postgres_lookup_wire_transfer().
+ *
+ * @param cls closure of type `struct WireTransferResultContext *`
+ * @param result the postgres result
+ * @param num_results the number of results in @a result
+ */
+static void
+handle_wt_result (void *cls,
+                  PGresult *result,
+                  unsigned int num_results)
+{
+  struct WireTransferResultContext *ctx = cls;
+  struct PostgresClosure *pg = ctx->pg;
+
+  for (unsigned int i = 0; i<num_results; i++)
+  {
+    uint64_t rowid;
+    struct TALER_PrivateContractHashP h_contract_terms;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    struct TALER_PaytoHashP h_payto;
+    struct TALER_MerchantPublicKeyP merchant_pub;
+    struct GNUNET_TIME_Timestamp exec_time;
+    struct TALER_Amount amount_with_fee;
+    struct TALER_Amount deposit_fee;
+    struct TALER_DenominationPublicKey denom_pub;
+    char *payto_uri;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint64 ("aggregation_serial_id", &rowid),
+      GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
+                                            &h_contract_terms),
+      GNUNET_PQ_result_spec_string ("payto_uri",
+                                    &payto_uri),
+      GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto",
+                                            &h_payto),
+      TALER_PQ_result_spec_denom_pub ("denom_pub",
+                                      &denom_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
+                                            &coin_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
+                                            &merchant_pub),
+      GNUNET_PQ_result_spec_timestamp ("execution_date",
+                                       &exec_time),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
+                                   &amount_with_fee),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
+                                   &deposit_fee),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                  rs,
+                                  i))
+    {
+      GNUNET_break (0);
+      ctx->status = GNUNET_SYSERR;
+      return;
+    }
+    ctx->cb (ctx->cb_cls,
+             rowid,
+             &merchant_pub,
+             payto_uri,
+             &h_payto,
+             exec_time,
+             &h_contract_terms,
+             &denom_pub,
+             &coin_pub,
+             &amount_with_fee,
+             &deposit_fee);
+    GNUNET_PQ_cleanup_result (rs);
+  }
+}
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_lookup_wire_transfer (
+  void *cls,
+  const struct TALER_WireTransferIdentifierRawP *wtid,
+  TALER_EXCHANGEDB_AggregationDataCallback cb,
+  void *cb_cls)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (wtid),
+    GNUNET_PQ_query_param_end
+  };
+  struct WireTransferResultContext ctx;
+  enum GNUNET_DB_QueryStatus qs;
+
+  ctx.cb = cb;
+  ctx.cb_cls = cb_cls;
+  ctx.pg = pg;
+  ctx.status = GNUNET_OK;
+  /* check if the melt record exists and get it */
+    /* Used in #postgres_lookup_wire_transfer */
+  PREPARE (pg,
+           "lookup_transactions",
+           "SELECT"
+           " aggregation_serial_id"
+           ",deposits.h_contract_terms"
+           ",payto_uri"
+           ",wire_targets.wire_target_h_payto"
+           ",kc.coin_pub"
+           ",deposits.merchant_pub"
+           ",wire_out.execution_date"
+           ",deposits.amount_with_fee_val"
+           ",deposits.amount_with_fee_frac"
+           ",denom.fee_deposit_val"
+           ",denom.fee_deposit_frac"
+           ",denom.denom_pub"
+           " FROM aggregation_tracking"
+           "    JOIN deposits"
+           "      USING (deposit_serial_id)"
+           "    JOIN wire_targets"
+           "      USING (wire_target_h_payto)"
+           "    JOIN known_coins kc"
+           "      USING (coin_pub)"
+           "    JOIN denominations denom"
+           "      USING (denominations_serial)"
+           "    JOIN wire_out"
+           "      USING (wtid_raw)"
+           " WHERE wtid_raw=$1;");
+  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+                                             "lookup_transactions",
+                                             params,
+                                             &handle_wt_result,
+                                             &ctx);
+  if (GNUNET_OK != ctx.status)
+    return GNUNET_DB_STATUS_HARD_ERROR;
+  return qs;
+}
-- 
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