Implement mapping and transaction fetching

handler/sinks/__init__.py

@@ -19,4 +19,8 @@ class Sinks(util.Base):
         super().__init__()
         self.fidor = sinks.fidor.Fidor()
         self.nordigen = sinks.nordigen.Nordigen()
-        self.truelayer = sinks.truelayer.TrueLayer()
+        self.truelayer = sinks.truelayer.TrueLayer(self)
+        # setattr(self.truelayer, "sinks", self)
+
+    def got_transactions(self, bank, account_id, transactions):
+        print("GOT transactions", bank, account_id, transactions)

handler/sinks/truelayer.py

@@ -18,14 +18,32 @@ class TrueLayer(util.Base):
     Class to manage calls to Open Banking APIs through TrueLayer.
     """
 
-    def __init__(self):
+    def __init__(self, sinks):
         super().__init__()
+        self.sinks = sinks
         self.tokens = {}
+        self.banks = {}
+
+        # Get the banks from the config and cache them
+        self.get_mapped_accounts()
 
         # account we are authenticating - where to store the refresh keys
-        self.current_authcode_account = None
+        self.current_authcode_bank = None
         self.lc = LoopingCall(self.get_new_tokens_all)
-        self.lc.start(int(settings.TrueLayer.RefreshSec))
+        # self.get_new_tokens_all()
+        # self.get_new_token(bank)
+        # -> set self.tokens[bank] = access_token
+        self.lc.start(int(settings.TrueLayer.TokenRefreshSec))
+
+        self.lc_tx = LoopingCall(self.transaction_loop)
+        self.lc_tx.start(int(settings.TrueLayer.RefreshSec))
+
+    def transaction_loop(self):
+        for bank in self.banks:
+            for account_id in self.banks[bank]:
+                # account_data = self.get_account(bank, account_id)
+                transactions = self.get_transactions(bank, account_id)
+                self.sinks.got_transactions(bank, account_id, transactions)
 
     def add_refresh_token(self, refresh_token):
         """
@@ -33,25 +51,27 @@ class TrueLayer(util.Base):
         Data type: {"monzo":   refresh_token,
                     "revolut": refresh_token}
         """
-        account = self.current_authcode_account
+        account = self.current_authcode_bank
         if not account:
             return False
         existing_entry = loads(settings.TrueLayer.RefreshKeys)
         existing_entry[account] = refresh_token
         settings.TrueLayer.RefreshKeys = dumps(existing_entry)
+        # Set the cached entry
+        self.refresh_tokens = existing_entry
         settings.write()
 
-    def get_refresh_tokens(self):
-        existing_entry = loads(settings.TrueLayer.RefreshKeys)
-        return existing_entry
+    # def get_refresh_tokens(self):
+    #    existing_entry = loads(settings.TrueLayer.RefreshKeys)
+    #    return existing_entry
 
-    def get_key(self, account):
-        if account in self.tokens:
-            return self.tokens[account]
+    def get_key(self, bank):
+        if bank in self.tokens:
+            return self.tokens[bank]
         else:
             return False
 
-    def create_auth_url(self, account):
+    def create_auth_url(self, bank):
         query = urllib.parse.urlencode(
             {
                 "response_type": "code",
@@ -64,7 +84,7 @@ class TrueLayer(util.Base):
             }
         )
         auth_uri = f"{settings.TrueLayer.AuthBase}/?{query}&redirect_uri={settings.TrueLayer.CallbackURL}"
-        self.current_authcode_account = account
+        self.current_authcode_bank = bank
         return auth_uri
 
     def handle_authcode_received(self, authcode):
@@ -92,32 +112,33 @@ class TrueLayer(util.Base):
         self.add_refresh_token(refresh_token)
 
         # Add the access
-        if self.current_authcode_account:
-            self.tokens[self.current_authcode_account] = access_token
+        if self.current_authcode_bank:
+            self.tokens[self.current_authcode_bank] = access_token
         else:
             self.log.error(f"Received an authcode we didn't ask for")
             return
-        self.log.info(f"Retrieved access/refresh tokens for {self.current_authcode_account}")
+        self.log.info(f"Retrieved access/refresh tokens for {self.current_authcode_bank}")
 
     def get_new_tokens_all(self):
-        refresh_list = loads(settings.TrueLayer.RefreshKeys)
-        for account in refresh_list:
-            self.get_new_token(account)
+        refresh_tokens = loads(settings.TrueLayer.RefreshKeys)
+        # Set the cached entry
+        self.refresh_tokens = refresh_tokens
+        for bank in refresh_tokens:
+            self.get_new_token(bank)
 
-    def get_new_token(self, account):
+    def get_new_token(self, bank):
         """
         Exchange our refresh token for an access token.
         :param account: account to refresh the token for
         :type account:
         """
-        refresh_tokens = self.get_refresh_tokens()
-        if account not in refresh_tokens:
+        if bank not in self.refresh_tokens:
             return
 
         headers = {"Content-Type": "application/x-www-form-urlencoded"}
         data = {
             "grant_type": "refresh_token",
-            "refresh_token": refresh_tokens[account],
+            "refresh_token": self.refresh_tokens[bank],
             "client_id": settings.TrueLayer.ID,
             "client_secret": settings.TrueLayer.Key,
         }
@@ -128,8 +149,8 @@ class TrueLayer(util.Base):
             return False
         if r.status_code == 200:
             if "access_token" in parsed.keys():
-                self.tokens[account] = parsed["access_token"]
-                self.log.info(f"Refreshed access token for {account}")
+                self.tokens[bank] = parsed["access_token"]
+                self.log.info(f"Refreshed access token for {bank}")
                 return True
             else:
                 self.log.error(f"Token refresh didn't contain access token: {parsed}", parsed=parsed)
@@ -138,11 +159,11 @@ class TrueLayer(util.Base):
             self.log.error(f"Cannot refresh token: {parsed}", parsed=parsed)
             return False
 
-    def get_accounts(self, account):
+    def get_accounts(self, bank):
         """
         Get a list of accounts.
         """
-        token = self.get_key(account)
+        token = self.get_key(bank)
         headers = {"Authorization": f"Bearer {token}"}
         path = f"{settings.TrueLayer.DataBase}/accounts"
         r = requests.get(path, headers=headers)
@@ -154,14 +175,66 @@ class TrueLayer(util.Base):
 
         return parsed
 
-    def get_transactions(self, account, account_id):
+    def _get_account(self, bank, account_id):
+        token = self.get_key(bank)
+        headers = {"Authorization": f"Bearer {token}"}
+        path = f"{settings.TrueLayer.DataBase}/accounts/{account_id}"
+        r = requests.get(path, headers=headers)
+        try:
+            parsed = r.json()
+        except JSONDecodeError:
+            self.log.error("Error parsing accounts response: {content}", content=r.content)
+            return False
+
+        return parsed
+
+    def get_mapped_accounts(self):
+        existing_entry = loads(settings.TrueLayer.Maps)
+        self.banks = existing_entry
+
+    def get_account(self, bank, account_id):
+        account_data = self._get_account(bank, account_id)
+        if "results" not in account_data:
+            return False
+        if not len(account_data["results"]) == 1:
+            return False
+        if not len(account_data) == 2:
+            return False
+        if not account_data["status"] == "Succeeded":
+            return False
+        base = account_data["results"][0]
+        return base
+
+    def map_account(self, bank, account_id):
+        """
+        Map an account_id at a bank to an account_name.
+        This enables the account for fetching.
+        Data type: {"monzo":   [account, ids, here],
+                    "revolut": [account, ids, here]}
+        """
+        account_data = self.get_account(bank, account_id)
+        currency = account_data["currency"]
+
+        existing_entry = loads(settings.TrueLayer.Maps)
+        if bank in existing_entry:
+            if account_id not in existing_entry[bank]:
+                existing_entry[bank].append(account_id)
+        else:
+            existing_entry[bank] = [account_id]
+        settings.TrueLayer.Maps = dumps(existing_entry)
+        self.banks = existing_entry
+        settings.write()
+
+        return currency
+
+    def get_transactions(self, bank, account_id):
         """
         Get a list of transactions from an account.
         :param account_id: account to fetch transactions for
         :return: list of transactions
         :rtype: dict
         """
-        token = self.get_key(account)
+        token = self.get_key(bank)
         headers = {"Authorization": f"Bearer {token}"}
         path = f"{settings.TrueLayer.DataBase}/accounts/{account_id}/transactions"
         r = requests.get(path, headers=headers)

handler/ux/commands.py

@@ -485,3 +485,19 @@ class IRCCommands(object):
                     currency = transaction["currency"]
                     description = transaction["description"]
                     msg(f"{timestamp} {txid} {ptxid} {txtype} {amount}{currency} {description}")
+
+    class mapaccount(object):
+        name = "mapaccount"
+        authed = True
+        helptext = "Enable an account_id at a bank for use. Usage: mapaccount <bank> <account_id>"
+
+        @staticmethod
+        def run(cmd, spl, length, authed, msg, agora, tx, ux):
+            if length == 3:
+                bank = spl[1]
+                account_id = spl[2]
+                account_name = tx.sinks.truelayer.map_account(bank, account_id)
+                if not account_name:
+                    msg(f"Failed to map the account")
+                    return
+                msg(f"Mapped account ID {account_id} at bank {bank} to {account_name}")