Line data Source code
1 : /*
2 : This file is part of TALER
3 : (C) 2019, 2020, 2021 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it under the
6 : terms of the GNU Affero General Public License as published by the Free Software
7 : Foundation; either version 3, or (at your option) any later version.
8 :
9 : TALER is distributed in the hope that it will be useful, but WITHOUT ANY
10 : WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11 : A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 :
13 : You should have received a copy of the GNU General Public License along with
14 : TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
15 : */
16 : /**
17 : * @file taler-merchant-httpd_private-get-products-ID.c
18 : * @brief implement GET /products/$ID
19 : * @author Christian Grothoff
20 : */
21 : #include "platform.h"
22 : #include "taler-merchant-httpd_private-get-products-ID.h"
23 : #include <taler/taler_json_lib.h>
24 : #include "taler-merchant-httpd_helper.h"
25 : #include <taler/taler_util.h>
26 :
27 : /**
28 : * Handle a GET "/products/$ID" request.
29 : *
30 : * @param rh context of the handler
31 : * @param connection the MHD connection to handle
32 : * @param[in,out] hc context with further information about the request
33 : * @return MHD result code
34 : */
35 : MHD_RESULT
36 21 : TMH_private_get_products_ID (
37 : const struct TMH_RequestHandler *rh,
38 : struct MHD_Connection *connection,
39 : struct TMH_HandlerContext *hc)
40 : {
41 21 : struct TMH_MerchantInstance *mi = hc->instance;
42 21 : struct TALER_MERCHANTDB_ProductDetails pd = { 0 };
43 : enum GNUNET_DB_QueryStatus qs;
44 21 : size_t num_categories = 0;
45 21 : uint64_t *categories = NULL;
46 : json_t *jcategories;
47 :
48 21 : GNUNET_assert (NULL != mi);
49 21 : qs = TMH_db->lookup_product (TMH_db->cls,
50 21 : mi->settings.id,
51 21 : hc->infix,
52 : &pd,
53 : &num_categories,
54 : &categories);
55 21 : if (0 > qs)
56 : {
57 0 : GNUNET_break (0);
58 0 : return TALER_MHD_reply_with_error (connection,
59 : MHD_HTTP_INTERNAL_SERVER_ERROR,
60 : TALER_EC_GENERIC_DB_FETCH_FAILED,
61 : "lookup_product");
62 : }
63 21 : if (0 == qs)
64 : {
65 8 : return TALER_MHD_reply_with_error (connection,
66 : MHD_HTTP_NOT_FOUND,
67 : TALER_EC_MERCHANT_GENERIC_PRODUCT_UNKNOWN,
68 8 : hc->infix);
69 : }
70 13 : jcategories = json_array ();
71 13 : GNUNET_assert (NULL != jcategories);
72 13 : for (size_t i = 0; i<num_categories; i++)
73 : {
74 0 : GNUNET_assert (0 ==
75 : json_array_append_new (jcategories,
76 : json_integer (categories[i])));
77 : }
78 13 : GNUNET_free (categories);
79 :
80 : {
81 : MHD_RESULT ret;
82 : int64_t total_stock_api;
83 : char unit_total_stock_buf[64];
84 :
85 13 : if (INT64_MAX == pd.total_stock)
86 1 : total_stock_api = -1;
87 : else
88 12 : total_stock_api = (int64_t) pd.total_stock;
89 :
90 13 : TMH_format_fractional_string (TMH_VK_STOCK,
91 : pd.total_stock,
92 : pd.total_stock_frac,
93 : sizeof (unit_total_stock_buf),
94 : unit_total_stock_buf);
95 :
96 13 : ret = TALER_MHD_REPLY_JSON_PACK (
97 : connection,
98 : MHD_HTTP_OK,
99 : GNUNET_JSON_pack_string ("product_name",
100 : pd.product_name),
101 : GNUNET_JSON_pack_string ("description",
102 : pd.description),
103 : GNUNET_JSON_pack_object_incref ("description_i18n",
104 : pd.description_i18n),
105 : GNUNET_JSON_pack_string ("unit",
106 : pd.unit),
107 : GNUNET_JSON_pack_array_steal ("categories",
108 : jcategories),
109 : TALER_JSON_pack_amount ("price",
110 : &pd.price),
111 : GNUNET_JSON_pack_allow_null (
112 : GNUNET_JSON_pack_string ("image",
113 : pd.image)),
114 : GNUNET_JSON_pack_allow_null (
115 : GNUNET_JSON_pack_array_incref ("taxes",
116 : pd.taxes)),
117 : GNUNET_JSON_pack_int64 ("total_stock",
118 : total_stock_api),
119 : GNUNET_JSON_pack_string ("unit_total_stock",
120 : unit_total_stock_buf),
121 : GNUNET_JSON_pack_bool ("unit_allow_fraction",
122 : pd.allow_fractional_quantity),
123 : GNUNET_JSON_pack_uint64 ("unit_precision_level",
124 : pd.fractional_precision_level),
125 : TALER_JSON_pack_amount_array ("unit_price",
126 : pd.price_array_length,
127 : pd.price_array),
128 : GNUNET_JSON_pack_uint64 ("total_sold",
129 : pd.total_sold),
130 : GNUNET_JSON_pack_uint64 ("total_lost",
131 : pd.total_lost),
132 : GNUNET_JSON_pack_allow_null (
133 : GNUNET_JSON_pack_object_incref ("address",
134 : pd.address)),
135 : GNUNET_JSON_pack_allow_null (
136 : GNUNET_JSON_pack_timestamp ("next_restock",
137 : (pd.next_restock))),
138 : GNUNET_JSON_pack_uint64 ("minimum_age",
139 : pd.minimum_age));
140 13 : TALER_MERCHANTDB_product_details_free (&pd);
141 13 : return ret;
142 : }
143 : }
144 :
145 :
146 : /* end of taler-merchant-httpd_private-get-products-ID.c */
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