Bug fixed Tangerang Selatan saat tagihan negatif

sismiop/services/base.py

@@ -290,8 +290,8 @@ class Inquiry(Query):
         if self.total > 0:
             self.hitung_discount()
             self.total -= self.discount
-            if self.is_paid():
-                self.total = 0
+        if self.is_paid():
+            self.total = 0
 
     def do_payment(self, bank_fields, nip_pencatat):
         bayar = self.invoice2payment()

sismiop/services/tangsel.py

@@ -47,6 +47,8 @@ class Inquiry(BaseInquiry):
             sisa = float(self.total_bayar - denda_lalu)
             tagihan = self.invoice.pbb_yg_harus_dibayar_sppt - sisa
             self.tagihan = round_up(tagihan)
+            if self.tagihan < 0:
+                self.tagihan = 0
 
     def hitung_denda(self):  # Override
         super().hitung_denda()