1 files changed, 62 insertions, 0 deletions
diff --git a/handler.c b/handler.c
new file mode 100644
index 0000000..8e118f7
--- /dev/null
+++ b/handler.c
@@ -0,0 +1,62 @@
+#include <stdbool.h>
+#include <tidy.h>
+#include <tidybuffio.h>
+#include <icclient.h>
+
+static void recurse_catalog(TidyDoc doc, TidyNode tnod, struct icclient_catalog **catalog)
+{
+	for (TidyNode child = tidyGetChild(tnod); child; child = tidyGetNext(child)) {
+		ctmbstr name = tidyNodeGetName(child);
+		if (!name)
+		       continue;
+		if (strcmp(name, "img")) {
+			recurse_catalog(doc, child, catalog);
+			continue;
+		}
+		static const char *prefix = IMAGE_DIR"/thumb/";
+		size_t prefix_len = strlen(prefix);
+		bool bail = false;
+		for (TidyAttr attr = tidyAttrFirst(child); attr; attr = tidyAttrNext(attr))
+			if (!strcmp(tidyAttrName(attr), "src") && strncmp(tidyAttrValue(attr), prefix, prefix_len)) {
+				bail = true;
+				break;
+			}
+		if (bail)
+			continue;
+		struct icclient_product *product = malloc(sizeof(struct icclient_product));
+		memset(product, '\0', sizeof(struct icclient_product));
+		for (TidyAttr attr = tidyAttrFirst(child); attr; attr = tidyAttrNext(attr)) {
+			name = tidyAttrName(attr);
+			ctmbstr value = tidyAttrValue(attr);
+			if (!strcmp(name, "src")) {
+				size_t len = strlen(value) - prefix_len;
+				product->image = malloc(len + 1);
+				strncpy(product->image, value + prefix_len, len + 1);
+			} else if (!strcmp(name, "alt")) {
+				product->description = malloc(strlen(value) + 1);
+				strcpy(product->description, value);
+			} else if (!strcmp(name, "title")) {
+				product->sku = malloc(strlen(value + 1));
+				strcpy(product->sku, value);
+			}
+		}
+		(*catalog)->length++;
+		*catalog = realloc(*catalog, sizeof(struct icclient_catalog)
+				+ sizeof(struct icclient_product *[(*catalog)->length]));
+		(*catalog)->products[(*catalog)->length - 1] = product;
+	}
+}
+
+struct icclient_catalog *catalog_data(const char *response)
+{
+	TidyDoc tdoc = tidyCreate();
+	TidyBuffer output = {0};
+	tidyParseString(tdoc, response);
+	tidySaveBuffer(tdoc, &output);
+	struct icclient_catalog *catalog = malloc(sizeof(struct icclient_catalog));
+	catalog->length = 0;
+	recurse_catalog(tdoc, tidyGetRoot(tdoc), &catalog);
+	tidyBufFree(&output);
+	tidyRelease(tdoc);
+	return catalog;
+}