Discount Pokok & Discount Denda Kota Tangerang

CHANGES.txt

+0.3.6 2024-02-26
+----------------
+- Discount Pokok dan Discount Denda Kota Tangerang
+
 0.3.5 2024-02-02
 ----------------
 - Kota Tangerang menerapkan persen denda ganda untuk jatuh tempo sebelum 1 Januari 2024

sismiop/services/tangkota.py

@@ -14,6 +14,17 @@ from .tangsel import (
     )
 
 
+AWAL_DISC = date(2024, 2, 26)
+AKHIR_DISC = date(2024, 3, 31)
+TAHUN_PAJAK_DISC_POKOK = '2024'
+BUKU_DISC_POKOK = [
+    (100000, 0.2),
+    (500000, 0.1),
+    (2000000, 0.06),
+    (5000000, 0.04),
+    (None, 0.03)]
+
+
 def hitung_denda(tagihan, jatuh_tempo, tgl_hitung):
     if jatuh_tempo >= tgl_hitung:
         return 0, 0
@@ -46,7 +57,32 @@ class Inquiry(BaseInquiry):
         self.denda = round_up(denda)
 
     def hitung_discount(self):  # Override
-        self.discount = self.discount_pokok = self.discount_denda = 0
+        self.denda_sblm_diskon = self.denda
+        self.discount_denda = self.discount_pokok = 0
+        if self.tgl_bayar > AKHIR_DISC:
+            return
+        if self.tgl_bayar < AWAL_DISC:
+            return
+        self.discount_pokok = self.hitung_discount_pokok()
+        self.discount_denda = self.hitung_discount_denda()
+        self.discount = self.discount_pokok + self.discount_denda
+
+    def hitung_discount_pokok(self):
+        if self.invoice.thn_pajak_sppt <= '2014':
+            return int(0.4 * self.tagihan)
+        if self.invoice.thn_pajak_sppt != TAHUN_PAJAK_DISC_POKOK:
+            return 0
+        for max_tagihan, disc in BUKU_DISC_POKOK:
+            if max_tagihan is None:
+                break
+            if self.invoice.pbb_yg_harus_dibayar_sppt <= max_tagihan:
+                break
+        return int(disc * self.tagihan)
+
+    def hitung_discount_denda(self):
+        if self.invoice.thn_pajak_sppt <= '2023':
+            return self.denda
+        return 0
 
 
 class AvailableInvoice(BaseAvailableInvoice):