From 2acbbcd9b7d9aa41f50ee74830e8d911a62ba380 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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 <prabowo@darapsa.org>
Date: Wed, 5 Oct 2022 13:45:21 +0800
Subject: Request for Status API

---
 midtrans.c | 45 +++++++++++++++++++++++++++++++++++++--------
 midtrans.h |  3 ++-
 2 files changed, 39 insertions(+), 9 deletions(-)

diff --git a/midtrans.c b/midtrans.c
index 932820d..7fce842 100644
--- a/midtrans.c
+++ b/midtrans.c
@@ -8,26 +8,55 @@
 #include <json.h>
 #include "midtrans.h"
 
+#define ORDER_ID "SANDBOX-G710367688-806"
+
+static _Bool sandbox;
+static char *base_url;
 #ifndef __EMSCRIPTEN__
-static char *cainfo = NULL;
+static CURL *curl;
 #endif
 
-void midtrans_init(const char *certificate)
+void midtrans_init(_Bool production, const char *api_key, const char *cainfo)
 {
+	sandbox = !production;
+	static const char *url_tmpl = "https://api.%smidtrans.com/v2/";
+	static const char *infix = "sandbox.";
+	base_url = malloc(strlen(url_tmpl) - strlen ("%s")
+			+ sandbox * strlen(infix) + 1);
+	sprintf(base_url, url_tmpl, production ? "" : infix);
 #ifndef __EMSCRIPTEN__
 	curl_global_init(CURL_GLOBAL_SSL);
-	if (certificate) {
-		cainfo = malloc(strlen(certificate) + 1);
-		strcpy(cainfo, certificate);
-	}
+	curl = curl_easy_init();
+	curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
+	struct curl_slist *list
+		= curl_slist_append(NULL, "Accept: application/json");
+	list = curl_slist_append(list, "Content-Type: application/json");
+	static const char *hdr_tmpl = "Authorization: %s";
+	char auth[strlen(hdr_tmpl) - strlen("%s") + strlen(api_key) + 1];
+	sprintf(auth, hdr_tmpl, api_key);
+	list = curl_slist_append(list, auth);
+	if (cainfo)
+		curl_easy_setopt(curl, CURLOPT_CAINFO, cainfo);
+#endif
+}
+
+void midtrans_status(const char *order_id)
+{
+	static const char *tmpl = "%s%s/status";
+	char url[strlen(tmpl) - strlen("%s") * 2 + strlen(base_url)
+		+ (sandbox ? strlen(ORDER_ID) : strlen(order_id)) + 1];
+	sprintf(url, tmpl, base_url, sandbox ? ORDER_ID : order_id);
+#ifndef __EMSCRIPTEN__
+	curl_easy_setopt(curl, CURLOPT_URL, url);
+	curl_easy_perform(curl);
 #endif
 }
 
 void midtrans_cleanup()
 {
+	free(base_url);
 #ifndef __EMSCRIPTEN__
-	if (cainfo)
-		free(cainfo);
+	curl_easy_cleanup(curl);
 	curl_global_cleanup();
 #endif
 }
diff --git a/midtrans.h b/midtrans.h
index 4c8fbde..bc73ec0 100644
--- a/midtrans.h
+++ b/midtrans.h
@@ -5,7 +5,8 @@
 extern "C" {
 #endif
 
-void midtrans_init(const char *certificate);
+void midtrans_init(_Bool production, const char *api_key, const char *cainfo);
+void midtrans_status(const char *order_id);
 void midtrans_cleanup();
 
 #ifdef __cplusplus
-- 
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