feat: implement reconciliation jar summary.

tienda_ilusion/don_confiao/models.py

@@ -44,3 +44,55 @@ class Product(models.Model):
 
     def __str__(self):
         return self.name
+
+class PyamentMethods(models.TextChoices):
+    CASH = 'CASH', _('Cash')
+    CONFIAR = 'CONFIAR', _('Confiar')
+    BANCOLOMBIA = 'BANCOLOMBIA', _('Bancolombia')
+
+class ReconciliationJarSummary():
+    def __init__(self, payments):
+        self._validate_payments(payments)
+        self._payments = payments
+
+    def _validate_payments(self, payments):
+        pass
+
+    @property
+    def total(self):
+        return sum([p.amount for p in self.payments])
+
+    @property
+    def payments(self):
+        return self._payments
+
+
+class ReconciliationJar(models.Model):
+    date_time = models.DateTimeField()
+    description = models.CharField(max_length=255, null=True, blank=True)
+
+
+class Payment(models.Model):
+    date_time = models.DateTimeField()
+    type_payment = models.CharField(
+        max_length=30,
+        choices=PyamentMethods.choices,
+        default=PyamentMethods.CASH
+    )
+    amount = models.DecimalField(max_digits=9, decimal_places=2)
+    reconciliation_jar = models.ForeignKey(
+        ReconciliationJar,
+        null=True,
+        default=None,
+        on_delete=models.RESTRICT
+    )
+    description = models.CharField(max_length=255, null=True, blank=True)
+
+    @classmethod
+    def get_reconciliation_jar_summary(cls):
+        return ReconciliationJarSummary(
+            cls.objects.filter(
+                type_payment=PyamentMethods.CASH,
+                reconciliation_jar=None
+            )
+        )