From 06bea8ae54dd3cd714b231b3d8a8deef77136613 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EA=A6=8C=EA=A6=AB=EA=A6=B6=EA=A6=8F=EA=A7=80=EA=A6=A6?=
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 <erik@darapsa.co.id>
Date: Thu, 10 Jun 2021 13:01:01 +0800
Subject: The client now takes an "on success" callback argument

---
 catalog.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)

(limited to 'catalog.c')

diff --git a/catalog.c b/catalog.c
index 27e2385..b7f7665 100644
--- a/catalog.c
+++ b/catalog.c
@@ -1,11 +1,109 @@
 #include <stdlib.h>
+#include <string.h>
+#include <json.h>
 #include "icclient/product.h"
 #include "icclient/catalog.h"
 
+static json_tokener *tokener = NULL;
+
+void icclient_catalog_init()
+{
+	tokener = json_tokener_new();
+}
+
+size_t icclient_catalog_results(void *contents, size_t size, size_t nmemb, void *userData)
+{
+	size_t realsize =
+#ifdef __EMSCRIPTEN__
+		fetch->numBytes
+#else
+		size * nmemb
+#endif
+		;
+	char data[realsize];
+	memcpy(data, contents, realsize - 1);
+	data[realsize - 1] = '\0';
+	json_object *products = json_tokener_parse_ex(tokener,
+#ifdef __EMSCRIPTEN__
+			fetch->
+#endif
+			data, realsize);
+	enum json_tokener_error error = json_tokener_get_error(tokener);
+	if (!products) {
+		if (error == json_tokener_continue)
+			return
+#ifndef __EMSCRIPTEN__
+				realsize
+#endif
+				;
+		else {
+			json_tokener_reset(tokener);
+			return
+#ifndef __EMSCRIPTEN__
+				realsize
+#endif
+				;
+		}
+	} else if (!json_object_is_type(products, json_type_array) || error != json_tokener_success)
+		return
+#ifndef __EMSCRIPTEN__
+			realsize
+#endif
+			;
+	size_t length = json_object_array_length(products);
+	struct icclient_catalog **catalogptr = (struct icclient_catalog **)
+#ifdef __EMSCRIPTEN__
+		fetch->
+#endif
+		userData;
+	*catalogptr = malloc(sizeof(struct icclient_catalog) + sizeof(struct icclient_product *[length]));
+	struct icclient_catalog *catalog = *catalogptr;
+	catalog->length = length;
+	for (size_t i = 0; i < length; i++) {
+		catalog->products[i] = malloc(sizeof(struct icclient_product));
+		struct icclient_product *product = catalog->products[i];
+		icclient_product_init(product);
+		json_object *object = json_object_array_get_idx(products, i);
+		struct json_object_iterator iterator = json_object_iter_begin(object);
+		struct json_object_iterator iterator_end = json_object_iter_end(object);
+		while (!json_object_iter_equal(&iterator, &iterator_end)) {
+			const char *key = json_object_iter_peek_name(&iterator);
+			json_object *val = json_object_iter_peek_value(&iterator);
+			if (!strcmp(key, "price"))
+				product->price = json_object_get_double(val);
+			else {
+				int len = json_object_get_string_len(val);
+				if (len) {
+					char *value = malloc(len + 1);
+					strcpy(value, json_object_get_string(val));
+					if (!strcmp(key, "sku"))
+						product->sku = value;
+					else if (!strcmp(key, "thumb"))
+						product->thumb = value;
+					else if (!strcmp(key, "image"))
+						product->image = value;
+					else if (!strcmp(key, "description"))
+						product->description = value;
+					else if (!strcmp(key, "prod_group"))
+						product->prod_group = value;
+				}
+			}
+			json_object_iter_next(&iterator);
+		}
+	}
+#ifdef __EMSCRIPTEN__
+	emscripten_fetch_close(fetch);
+#else
+	return realsize;
+#endif
+}
+
 void icclient_catalog_free(struct icclient_catalog *catalog)
 {
 	for (size_t i = 0; i < catalog->length; i++)
 		icclient_product_free(catalog->products[i]);
 	free(catalog);
 	catalog = NULL;
+	json_tokener_free(tokener);
+
 }
-- 
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