Attempt at memoization

[matrix-shop-bot.git] / matrix_shop_bot / db.py

diff --git a/matrix_shop_bot/db.py b/matrix_shop_bot/db.py
index 0d1f5902e7b08ec21addb94c6adefa2e9fb20041..bab18376ffbbff9205e93e84bf6a90b1822cebd2 100644 (file)
--- a/matrix_shop_bot/db.py
+++ b/matrix_shop_bot/db.py
@@ -62,6 +62,7 @@ class Data():
 
         self.file = db_file
         self.engine = self.get_engine()
+        self.last_store_id = None
 
     def _add_with_name(self, cls, name):
         id = -1
@@ -73,12 +74,27 @@ class Data():
         return id
 
     def add_store(self, name):
-        return self._add_with_name(Store, name)
+        store_id = self._add_with_name(Store, name)
+        self.last_store_id = store_id
+        return store_id
             
     def add_item(self, name):
-        return self._add_with_name(Item, name)
+        item_id = self._add_with_name(Item, name)
+        if isinstance(self.last_store_id, int):
+            with Session(self.engine) as session:
+                store_id = self.last_store_id
+                store = session.exec(_get_with_id(Store, store_id)).first()
+                item = session.exec(_get_with_id(Item, item_id)).first()
+                item.stores.append(store)
+                session.commit()
+        return item_id
+
+    def assign_store(self, item_id, store_id=None):
+        if store_id:
+            self.last_store_id = store_id
+        else:
+            store_id = self.last_store_id
 
-    def assign_store(self, store_id, item_id):
         with Session(self.engine) as session:
             store = session.exec(_get_with_id(Store, store_id)).first()
             item = session.exec(_get_with_id(Item, item_id)).first()
@@ -115,7 +131,12 @@ class Data():
                 return [f'No unsorted items!']
             return items
 
-    def get_shopping_list(self, store_id) -> List[str]:
+    def get_shopping_list(self, store_id=None) -> List[str]:
+        if isinstance(store_id, int):
+            self.last_store_id = store_id
+        else:
+            store_id = self.last_store_id
+
         results = []
         with Session(self.engine) as session:
             cmd = select(Store).where(Store.id == store_id)
@@ -136,6 +157,18 @@ class Data():
                         results.append(f' - [ ] {item}')
         return results
 
+    def remove_item(self, item_id):
+        with Session(self.engine) as session:
+            item = session.exec(_get_with_id(Item, item_id)).first()
+            session.delete(item)
+            session.commit()
+
+    def remove_store(self, store_id):
+        with Session(self.engine) as session:
+            store = session.exec(_get_with_id(Store, store_id)).first()
+            session.delete(store)
+            session.commit()
+
     def get_engine(self):
         return create_engine(f"sqlite:///{self.file}")