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--
-- This file is part of TALER
-- Copyright (C) 2021 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 merchant-0004.sql
-- @brief database helper functions for postgres used by the merchant and function for plugin_merchantdb_postgres.c
-- @author Priscilla Huang


BEGIN;
-- Check patch versioning is in place.
SELECT _v.register_patch('merchant-0004', NULL, NULL);

SET search_path TO merchant;

-- create table here!

CREATE TABLE IF NOT EXISTS merchant_template
  (template_serial BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
  ,merchant_serial BIGINT NOT NULL
    REFERENCES merchant_instances (merchant_serial) ON DELETE CASCADE
  ,template_id VARCHAR NOT NULL
  ,template_description VARCHAR NOT NULL
  ,image BYTEA
  ,template_contract VARCHAR NOT NULL -- in JSON format
  ,UNIQUE (merchant_serial, template_id)
  );
COMMENT ON TABLE merchant_template
  IS 'template used by the merchant (may be incomplete, frontend can override)';
COMMENT ON COLUMN merchant_template.template_description
  IS 'Human-readable template description';
COMMENT ON COLUMN merchant_template.image
  IS 'NOT NULL, but can be 0 bytes; must contain an ImageDataUrl';
COMMENT ON COLUMN merchant_template.template_contract
  IS 'The template contract will contains some additional information.';

COMMIT;


CREATE TABLE IF NOT EXISTS merchant_webhook
  (webhook_serial BIGINT GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY
  ,merchant_serial BIGINT NOT NULL
    REFERENCES merchant_instances (merchant_serial) ON DELETE CASCADE
  ,webhook_id VARCHAR NOT NULL
  ,event_type VARCHAR NOT NULL
  ,url VARCHAR NOT NULL
  ,http_method VARCHAR NOT NULL
  ,header_template VARCHAR
  ,body_template VARCHAR
  ,UNIQUE (merchant_serial, webhook_id)
  );
COMMENT ON TABLE merchant_webhook
  IS 'webhook used by the merchant (may be incomplete, frontend can override)';
COMMENT ON COLUMN merchant_webhook.event_type
  IS 'Event of the webhook';
COMMENT ON COLUMN merchant_webhook.url
  IS 'URL use by the customer';
COMMENT ON COLUMN merchant_webhook.http_method
  IS 'http method use by the merchant';
COMMENT ON COLUMN merchant_webhook.header_template
  IS 'Header of the webhook';
COMMENT ON COLUMN merchant_webhook.body_template
  IS 'Body of the webhook';

COMMIT;