[Fix] Improves logging for bank/creditcard parser

When the credit card was correct but the bank was wrong, it was
difficul to accertain which one was wrong. Not when one fails, it will
also log what are the available options.

pfbudget/input/parsers.py

@@ -4,7 +4,7 @@ from importlib import import_module
 import datetime as dt
 import yaml
 
-from pfbudget.common.types import Transaction
+from pfbudget.common.types import NoBankSelected, Transaction, Transactions
 from pfbudget.utils import utils
 
 Index = namedtuple(
@@ -43,7 +43,7 @@ Options = namedtuple(
 )
 
 
-def parse_data(filename: str, args: dict) -> None:
+def parse_data(filename: str, args: dict) -> Transactions:
     cfg: dict = yaml.safe_load(open("parsers.yaml"))
     assert (
         "Banks" in cfg
@@ -57,17 +57,25 @@ def parse_data(filename: str, args: dict) -> None:
         bank = args["bank"][0]
         creditcard = None if not args["creditcard"] else args["creditcard"][0]
 
-    if not creditcard:
+    try:
         options: dict = cfg[bank]
-    else:
-        options: dict = cfg[bank][creditcard]
+    except KeyError as e:
+        banks = cfg["Banks"]
+        raise NoBankSelected(f"{e} not a valid bank, try one of {banks}")
+
+    if creditcard:
+        try:
+            options = options[creditcard]
+        except KeyError as e:
+            creditcards = cfg["CreditCards"]
+            raise NoBankSelected(f"{e} not a valid bank, try one of {creditcards}")
         bank += creditcard
 
     if args["category"]:
         options["category"] = args["category"][0]
 
     if options.get("additional_parser"):
-        parser = getattr(import_module("pfbudget.parsers"), bank)
+        parser = getattr(import_module("pfbudget.input.parsers"), bank)
         transactions = parser(filename, bank, options).parse()
     else:
         transactions = Parser(filename, bank, options).parse()