From d3d482be762c6baa8b8f90366749b38f8e1d5476 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?=
 =?UTF-8?q?=EA=A6=BF=EA=A6=A7=EA=A6=AE=EA=A6=91=EA=A6=A9=EA=A6=AD=EA=A7=80?=
 <erik@darapsa.co.id>
Date: Mon, 31 Oct 2022 17:52:47 +0800
Subject: Status & charge return strings

The most likely needed info like VA number.
---
 midtrans.c    | 59 ++++++++++++++++++++++++++++++++++++++++++-----------------
 midtrans.dart | 15 ++++++++-------
 midtrans.h    |  4 ++--
 3 files changed, 52 insertions(+), 26 deletions(-)

diff --git a/midtrans.c b/midtrans.c
index 0f4522f..13858a4 100644
--- a/midtrans.c
+++ b/midtrans.c
@@ -81,19 +81,7 @@ void midtrans_init(const char *api_key, char *pem)
 				}));
 }
 
-static void *request(void *arg)
-{
-	struct response res = { 0, NULL };
-	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &res);
-	curl_easy_perform(curl);
-#ifdef DEBUG
-	printf("%s\n", res.data);
-#endif
-	free(res.data);
-	return NULL;
-}
-
-void midtrans_status(const char *order_id)
+char *midtrans_status(const char *order_id)
 {
 	static const char *tmpl = "%s%s/status";
 	char url[strlen(tmpl) - strlen("%s") * 2 + strlen(base_url)
@@ -101,11 +89,29 @@ void midtrans_status(const char *order_id)
 	sprintf(url, tmpl, base_url, order_id);
 	curl_easy_setopt(curl, CURLOPT_URL, url);
 
-	request(NULL);
+	struct response res = { 0, NULL };
+	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &res);
+	curl_easy_perform(curl);
+
+	json_tokener *tokener = json_tokener_new();
+	json_object *object = json_tokener_parse_ex(tokener, res.data,
+			res.size);
+	free(res.data);
+
+	json_object *transaction_status = NULL;
+	json_object_object_get_ex(object, "transaction_status",
+			&transaction_status);
+	const char *string = json_object_get_string(transaction_status);
+	char *status = malloc(strlen(string) + 1);
+	strcpy(status, string);
+	json_tokener_free(tokener);
+
+	return status;
 }
 
-void midtrans_charge_banktransfer(struct midtrans_banktransfer *banktransfer,
-		struct midtrans_transaction *transaction, char *custom_fields[])
+char *midtrans_charge_banktransfer(struct midtrans_banktransfer
+		*banktransfer, struct midtrans_transaction *transaction,
+		char *custom_fields[])
 {
 	static const char *url_tmpl = "%scharge";
 	char url[strlen(url_tmpl) - strlen("%s") + strlen(base_url) + 1];
@@ -172,7 +178,26 @@ void midtrans_charge_banktransfer(struct midtrans_banktransfer *banktransfer,
 	free(payment);
 	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post);
 
-	request(NULL);
+	struct response res = { 0, NULL };
+	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &res);
+	curl_easy_perform(curl);
+
+	json_tokener *tokener = json_tokener_new();
+	json_object *status = json_tokener_parse_ex(tokener, res.data,
+			res.size);
+	free(res.data);
+
+	json_object *va_numbers = NULL;
+	json_object_object_get_ex(status, "va_numbers", &va_numbers);
+	json_object *object = json_object_array_get_idx(va_numbers, 0);
+	json_object *number = NULL;
+	json_object_object_get_ex(object, "va_number", &number);
+	const char *string = json_object_get_string(number);
+	char *virtualaccount_number = malloc(strlen(string) + 1);
+	strcpy(virtualaccount_number, string);
+	json_tokener_free(tokener);
+
+	return virtualaccount_number;
 }
 
 void midtrans_cleanup()
diff --git a/midtrans.dart b/midtrans.dart
index 35ee23b..860bd31 100644
--- a/midtrans.dart
+++ b/midtrans.dart
@@ -18,6 +18,9 @@ class MidtransBanktransfer extends Struct {
 	Pointer<Utf8> permata;
 }
 
+typedef MidtransChargeBanktransfer Pointer<Utf8> Function(MidtransBanktransfer,
+		MidtransTransaction, Array<Pointer<Utf8>>);
+
 class Midtrans {
 	DynamicLibrary dylib;
 
@@ -37,17 +40,14 @@ class Midtrans {
 		calloc.free(pemUtf8);
 	}
 
-	void chargeBanktransfer(MidtransBanktransfer payment,
+	String chargeBanktransfer(MidtransBanktransfer payment,
 			MidtransTransaction transaction,
 			Array<Pointer<Utf8>> customFields) {
 		final midtrans_charge = dylib.lookupFunction
-			<Void Function(MidtransBanktransfer,
-					MidtransTransaction,
-					Array<Pointer<Utf8>>),
-		void Function(MidtransBanktransfer, MidtransTransaction,
-				Array<Pointer<Utf8>>)>
+			<MidtransChargeBanktransfer, MidtransChargeBanktransfer>
 			('midtrans_charge_banktransfer');
-		midtrans_charge(payment, transaction, customFields);
+		final va_number = midtrans_charge(payment, transaction,
+				customFields).toDartString();
 		calloc.free(payment.bank);
 		if (payment.va_number != null) {
 			calloc.free(payment.va_number);
@@ -64,6 +64,7 @@ class Midtrans {
 				calloc.free(customFields[i]);
 			}
 		}
+		return va_number;
 	}
 
 	void cleanup() {
diff --git a/midtrans.h b/midtrans.h
index ab040fb..33f4a43 100644
--- a/midtrans.h
+++ b/midtrans.h
@@ -23,8 +23,8 @@ extern "C" {
 #endif
 
 void midtrans_init(const char *api_key, char *pem);
-void midtrans_status(const char *order_id);
-void midtrans_charge_banktransfer(struct midtrans_banktransfer *banktransfer,
+char *midtrans_status(const char *order_id);
+char *midtrans_charge_banktransfer(struct midtrans_banktransfer *banktransfer,
 		struct midtrans_transaction *transaction,
 		char *custom_fields[]);
 void midtrans_cleanup();
-- 
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