Add period option to transactions download

The period will only apply after the transactions have been received,
since if sent on the request, credit cards seem to use the value date
instead of the booking date, rendering the feature useless.

Also adds some robustness to the download of the transactions, by adding
a retry in case of timeout.

pfbudget/cli/runnable.py

@@ -219,15 +219,13 @@ def argparser(manager: Manager) -> argparse.ArgumentParser:
     p_nordigen_download = subparsers.add_parser(
         "download",
         description="Downloads transactions using Nordigen API",
-        parents=[help],
+        parents=[help, period],
         formatter_class=argparse.ArgumentDefaultsHelpFormatter,
     )
     p_nordigen_download.add_argument("--id", nargs="+", type=str)
     p_nordigen_download.add_argument("--name", nargs="+", type=str)
     p_nordigen_download.add_argument("--all", action="store_true")
-    p_nordigen_download.set_defaults(
-        func=lambda args: manager.parser(NordigenInput(manager, vars(args)))
-    )
+    p_nordigen_download.set_defaults(func=lambda args: download(manager, args))
 
     """
     List available banks on Nordigen API
@@ -315,6 +313,11 @@ def nordigen_banks(manager: Manager, args):
     input.list(vars(args)["country"][0])
 
 
+def download(manager: Manager, args):
+    start, end = pfbudget.utils.parse_args_period(args)
+    manager.parser(NordigenInput(manager, vars(args), start, end))
+
+
 def run():
     manager = Manager(DEFAULT_DB)
     args = argparser(manager).parse_args()

pfbudget/input/nordigen.py

@@ -1,3 +1,6 @@
+from datetime import date
+from time import sleep
+from requests import ReadTimeout
 from dotenv import load_dotenv
 from nordigen import NordigenClient
 from uuid import uuid4
@@ -12,7 +15,7 @@ load_dotenv()
 
 
 class NordigenInput(Input):
-    def __init__(self, manager, options: dict = {}):
+    def __init__(self, manager, options: dict = {}, start=date.min, end=date.max):
         super().__init__(manager)
         self._client = NordigenClient(
             secret_key=os.environ.get("SECRET_KEY"),
@@ -21,7 +24,7 @@ class NordigenInput(Input):
 
         self.client.token = self.__token()
 
-        print(options)
+        # print(options)
 
         if "all" in options and options["all"]:
             self.__banks = self.manager.get_banks()
@@ -36,22 +39,45 @@ class NordigenInput(Input):
         else:
             self.__banks = None
 
+        self.__from = start
+        self.__to = end
+
     def parse(self) -> Transactions:
         transactions = []
         if not self.__banks:
             raise NoBankSelected
 
         for bank in self.__banks:
+            print(f"Downloading from {bank}...")
             requisition = self.client.requisition.get_requisition_by_id(
                 bank.requisition_id
             )
 
             for acc in requisition["accounts"]:
                 account = self._client.account_api(acc)
-                d = account.get_transactions()["transactions"]
+
+                retries = 0
+                downloaded = {}
+                while retries < 3:
+                    try:
+                        downloaded = account.get_transactions()
+                        break
+                    except ReadTimeout:
+                        retries += 1
+                        print(f"Request #{retries} timed-out, waiting 1s")
+                        sleep(1)
+
+                if not downloaded:
+                    print(f"Couldn't download transactions for {account}")
+                    continue
+
+                converted = [
+                    convert(t, bank.name, bank.invert)
+                    for t in downloaded["transactions"]["booked"]
+                ]
 
                 transactions.extend(
-                    [convert(t, bank.name, bank.invert) for t in d["booked"]]
+                    [t for t in converted if self.__from <= t.date <= self.__to]
                 )
 
         return transactions