1 files changed, 107 insertions, 0 deletions
diff --git a/interchange.c b/interchange.c
new file mode 100644
index 0000000..66497b8
--- /dev/null
+++ b/interchange.c
@@ -0,0 +1,107 @@
+#include <stdlib.h>
+#include <string.h>
+#include "request.h"
+#include "interchange.h"
+
+char *image_dir;
+#ifdef __EMSCRIPTEN__
+emscripten_fetch_attr_t attr;
+#else
+char *sampleurl;
+char *cainfo = NULL;
+#endif
+
+extern void handle_results(interchange_response *);
+
+void interchange_init(const char *url, const char *dir, const char *certificate)
+{
+	image_dir = malloc(strlen(dir) + 1);
+	strcpy(image_dir, dir);
+#ifdef __EMSCRIPTEN__
+	emscripten_fetch_attr_init(&attr);
+	attr.attributes = EMSCRIPTEN_FETCH_LOAD_TO_MEMORY;
+#else
+	size_t length = strlen(url);
+	size_t append = url[length - 1] != '/';
+	sampleurl = malloc(length + append + 1);
+	strcpy(sampleurl, url);
+	if (append)
+		strcat(sampleurl, "/");
+	curl_global_init(CURL_GLOBAL_SSL);
+	if (certificate) {
+		cainfo = malloc(strlen(certificate) + 1);
+		strcpy(cainfo, certificate);
+	}
+#endif
+}
+
+void interchange_catalog(const char *prod_group, void (*handler)(interchange_response *), void (*callback)(struct interchange_catalog *))
+{
+	char nonspaced[strlen(prod_group) + 1];
+	strcpy(nonspaced, prod_group);
+	char *space = NULL;
+	while ((space = strchr(nonspaced, ' ')))
+		*space = '-';
+	request(handler ? handler : handle_results, (void (*)(void *))callback, NULL, "%s", nonspaced);
+}
+
+void interchange_product(const char *sku, void (*handler)(interchange_response *), void (*callback)(struct interchange_product *))
+{
+	request(handler, (void (*)(void *))callback, NULL, "%s", sku);
+}
+
+void interchange_page(const char *path, void (*handler)(interchange_response *))
+{
+	request(handler, NULL, NULL, "%s", path);
+}
+
+void interchange_free_product(struct interchange_product *product)
+{
+	if (product->crosssell)
+		for (size_t i = 0; i < product->crosssell->length; i++)
+			free(product->crosssell->skus[i]);
+	if (product->author)
+		free(product->author);
+	if (product->prod_group)
+		free(product->prod_group);
+	if (product->image)
+		free(product->image);
+	if (product->thumb)
+		free(product->thumb);
+	if (product->comment)
+		free(product->comment);
+	if (product->description)
+		free(product->description);
+	free(product->sku);
+	free(product);
+}
+
+void interchange_free_catalog(struct interchange_catalog *catalog)
+{
+	for (size_t i = 0; i < catalog->length; i++)
+		interchange_free_product(catalog->products[i]);
+	free(catalog);
+}
+
+void interchange_free_response(interchange_response *response)
+{
+	if (response->userData)
+		free(response->userData);
+#ifdef __EMSCRIPTEN__
+	emscripten_fetch_close(response);
+#else
+	free(response->data);
+	curl_easy_cleanup(response->curl);
+	free(response);
+#endif
+}
+
+void interchange_cleanup()
+{
+	free(image_dir);
+#ifndef __EMSCRIPTEN__
+	free(cainfo);
+	free(sampleurl);
+	curl_global_cleanup();
+#endif
+}