feat: Update charge route

Author: mrsaicharan1

app/api/event_invoices.py

@@ -19,7 +19,6 @@
 from app.api.orders import order_misc_routes
 
 
-
 class EventInvoiceList(ResourceList):
     """
     List and Create Event Invoices
@@ -121,4 +120,28 @@ def charge_paypal_payment_invoice(invoice_identifier):
     Create a paypal payment.
     :return: The payment id of the created payment.
     """
-    pass
+    try:
+        paypal_payment_id = request.json['data']['attributes']['paypal_payment_id']
+        paypal_payer_id = request.json['data']['attributes']['paypal_payer_id']
+    except:
+        return BadRequestError({'source': ''}, 'Bad Request Error').respond()
+    event_invoice = safe_query(db, EventInvoice, 'identifier', invoice_identifier, 'identifier')
+    # save the paypal payment_id with the order
+    event_invoice.paypal_token = paypal_payment_id
+    save_to_db(event_invoice)
+
+    # create the transaction.
+    status, error = PayPalPaymentsManager.execute_payment(paypal_payer_id, paypal_payment_id)
+
+    if status:
+        # successful transaction hence update the order details.
+        event_invoice.paid_via = 'paypal'
+        event_invoice.status = 'completed'
+        event_invoice.transaction_id = paypal_payment_id
+        event_invoice.completed_at = datetime.utcnow()
+        save_to_db(event_invoice)
+
+        return True, 'Charge successful'
+    else:
+        # return the error message from Paypal
+        return False, error