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import 'dart:ffi';
import 'dart:io';
import 'package:ffi/ffi.dart';
class MidtransTransaction extends Struct {
Pointer<Utf8> order_id;
@Long()
int gross_amount;
}
class MidtransBanktransfer extends Struct {
Pointer<Utf8> bank;
Pointer<Utf8> va_number;
Pointer<Utf8> bca;
Pointer<Utf8> permata;
}
typedef MidtransStatus = Pointer<Utf8> Function(Pointer<Utf8>);
typedef MidtransBanktransferNew = MidtransBanktransfer Function(Pointer<Utf8>);
typedef MidtransChargeBanktransfer
= Pointer<Utf8> Function(MidtransBanktransfer, MidtransTransaction);
class Midtrans {
final dylib = Platform.isAndroid ? DynamicLibrary.open('libmidtrans.so')
: DynamicLibrary.process();;
Midtrans(String apiKey, String pem) {
final apiKeyUtf8 = apiKey.toNativeUtf8();
final pemUtf8 = pem.toNativeUtf8();
final midtrans_init = dylib.lookupFunction
<Void Function(Pointer<Utf8>, Pointer<Utf8>),
void Function(Pointer<Utf8>, Pointer<Utf8>)>
('midtrans_init');
midtrans_init(apiKeyUtf8, pemUtf8);
calloc.free(apiKeyUtf8);
calloc.free(pemUtf8);
}
String status(String orderID) {
final midtrans_status = dylib.lookupFunction<MidtransStatus,
MidtransStatus>('midtrans_status');
final order_id = orderID.toNativeUtf8();
final status = midtrans_status(order_id).toDartString();
calloc.free(order_id);
return status;
}
String chargeBanktransfer(String bank, String orderID,
int grossAmount) {
final midtrans_banktransfer_new = dylib.lookupFunction
<MidtransBanktransferNew, MidtransBanktransferNew>
('midtrans_banktransfer_new');
final midtrans_transaction_new = dylib.lookupFunction
<MidtransTransaction Function(Pointer<Utf8>, Long),
MidtransTransaction Function(Pointer<Utf8>, int)>
('midtrans_transaction_new');
final midtrans_charge = dylib.lookupFunction
<MidtransChargeBanktransfer, MidtransChargeBanktransfer>
('midtrans_charge_banktransfer');
final bankUtf8 = bank.toNativeUtf8();
final order_id = orderID.toNativeUtf8();
final vaNumber = midtrans_charge(
midtrans_banktransfer_new(bankUtf8),
midtrans_transaction_new(order_id, grossAmount))
.toDartString();
calloc.free(bankUtf8);
calloc.free(order_id);
return vaNumber;
}
void cleanup() {
final midtrans_cleanup = dylib.lookupFunction<Void Function(),
void Function()>('midtrans_cleanup');
midtrans_cleanup();
}
}
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