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--
-- This file is part of TALER
-- Copyright (C) 2014--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/>
--
CREATE OR REPLACE FUNCTION exchange_do_batch_reserves_in_insert(
IN in_reserve_pub BYTEA,
IN in_expiration_date INT8,
IN in_gc_date INT8,
IN in_wire_ref INT8,
IN in_credit_val INT8,
IN in_credit_frac INT4,
IN in_exchange_account_name VARCHAR,
IN in_exectution_date INT8,
IN in_wire_source_h_payto BYTEA, ---h_payto
IN in_payto_uri VARCHAR,
IN in_reserve_expiration INT8,
IN in_notify text,
OUT out_reserve_found BOOLEAN,
OUT transaction_duplicate BOOLEAN,
OUT ruuid INT8)
LANGUAGE plpgsql
AS $$
DECLARE
curs refcursor;
DECLARE
i RECORD;
DECLARE
curs_trans refcursor;
BEGIN
ruuid= 0;
out_reserve_found = TRUE;
transaction_duplicate= TRUE;
--SIMPLE INSERT ON CONFLICT DO NOTHING
INSERT INTO wire_targets
(wire_target_h_payto
,payto_uri)
VALUES
(in_wire_source_h_payto
,in_payto_uri)
ON CONFLICT DO NOTHING;
OPEN curs FOR
WITH reserve_changes AS (
INSERT INTO reserves
(reserve_pub
,current_balance_val
,current_balance_frac
,expiration_date
,gc_date)
VALUES
(in_reserve_pub
,in_credit_val
,in_credit_frac
,in_expiration_date
,in_gc_date)
ON CONFLICT DO NOTHING
RETURNING reserve_uuid, reserve_pub)
SELECT * FROM reserve_changes;
FETCH FROM curs INTO i;
IF FOUND
THEN
-- We made a change, so the reserve did not previously exist.
IF in_reserve_pub = i.reserve_pub
THEN
out_reserve_found = FALSE;
ruuid = i.reserve_uuid;
END IF;
END IF;
CLOSE curs;
PERFORM pg_notify(in_notify, NULL);
OPEN curs_trans FOR
WITH reserve_transaction AS(
INSERT INTO reserves_in
(reserve_pub
,wire_reference
,credit_val
,credit_frac
,exchange_account_section
,wire_source_h_payto
,execution_date)
VALUES
(in_reserve_pub
,in_wire_ref
,in_credit_val
,in_credit_frac
,in_exchange_account_name
,in_wire_source_h_payto
,in_expiration_date)
ON CONFLICT DO NOTHING
RETURNING reserve_pub)
SELECT * FROM reserve_transaction;
FETCH FROM curs_trans INTO i;
IF FOUND
THEN
IF i.reserve_pub = in_reserve_pub
THEN
-- HAPPY PATH THERE IS NO DUPLICATE TRANS
transaction_duplicate = FALSE;
END IF;
END IF;
CLOSE curs_trans;
RETURN;
END $$;
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