Added CardCache to speed up listings

favro_sync/favro_client.py

@@ -12,6 +12,30 @@ URL_API_ROOT = 'https://favro.com/api/v1'
 URL_GET_ALL_CARDS = URL_API_ROOT + '/cards'
 URL_UPDATE_CARD = URL_API_ROOT + '/cards/{card_id}'
 
+class CardCache:
+
+    def __init__(self):
+        self.cards = []
+
+    def add_card(self, card: Card) -> None:
+        self.remove(card.card_id)
+        self.cards.append(card)
+
+    def get_card_by_card_id(self, card_id: CardId) -> Card | None:
+        for card in self.cards:
+            if card.card_id == card_id:
+                return card
+
+    def get_card_by_seq_id(self, seq_id: SeqId) -> Card | None:
+        for card in self.cards:
+            if card.seq_id == seq_id:
+                return card
+
+    def remove(self, card_id: CardId) -> Card | None:
+        card = self.get_card_by_card_id(card_id)
+        if card in self.cards:
+            self.cards.remove(card)
+        return card
 
 class FavroClient:
     def __init__(
@@ -38,8 +62,7 @@ class FavroClient:
         )
         self.read_only = read_only
 
-        self.card_id_to_seq_id: dict[CardId, SeqId] = {}
-        self.seq_id_to_card_id: dict[SeqId, CardId] = {}
+        self.cache = CardCache()
 
     def check_logged_in(self) -> None:
         next(self.get_todo_list_cards())
@@ -61,8 +84,7 @@ class FavroClient:
         # TODO: Pageination
         for entity_json in json['entities']:
             card = Card.from_json(entity_json)
-            self.card_id_to_seq_id[card.card_id] = card.seq_id
-            self.seq_id_to_card_id[card.seq_id] = card.card_id
+            self.cache.add_card(card)
             yield card
             del entity_json
 
@@ -79,17 +101,14 @@ class FavroClient:
         return self.session.prepare_request(request)
 
     def get_card(self, seq_id: SeqId) -> Card:
+        if card := self.cache.get_card_by_seq_id(seq_id):
+            return card
         return next(self.get_cards(seq_id=seq_id))
 
-    def get_card_id(self, seq_id: SeqId) -> CardId:
-        if card_id := self.seq_id_to_card_id[seq_id]:
-            return card_id
-        first_card = next(self.get_cards(seq_id=seq_id))
-        return first_card.card_id
-
     def _invalidate_cache(self, card_id: CardId) -> None:
+        card = self.cache.remove(card_id)
         self.session.cache.delete(
-            requests=[self._get_cards_request(seq_id=self.card_id_to_seq_id[card_id])],
+            requests=[self._get_cards_request(seq_id=card.seq_id)],
         )
 
     def update_card_description(self, card_id: CardId, description: str) -> Card: