Bug fix

- Validate and enforce positive price for SPECIFIC_PRICE alerts
- improve error handling and alert squelching logic.

token_bot/persistant_database/alert_schema.py

@@ -12,8 +12,13 @@ import token_bot.persistant_database as pdb
 
 class Alert:
     def __init__(
-        self, alert: pdb.AlertType, flavor: Flavor, region: Region, price: int = 0
+            self, alert: pdb.AlertType, flavor: Flavor, region: Region, price: int = 0
     ) -> None:
+        # Validate price for SPECIFIC_PRICE alerts
+        if alert == AlertType.SPECIFIC_PRICE:
+            if price is None or price <= 0:
+                raise ValueError("SPECIFIC_PRICE alerts require a positive price value")
+
         # AlertType is the Primary Key
         self._alert_type: pdb.AlertType = alert
         # Flavor (Retail, Classic) is the Sort Key
@@ -91,10 +96,10 @@ class Alert:
 
     def __eq__(self, other):
         return (
-            self.alert_type == other.alert_type
-            and self.flavor == other.flavor
-            and self.region == other.region
-            and self.price == other.price
+                self.alert_type == other.alert_type
+                and self.flavor == other.flavor
+                and self.region == other.region
+                and self.price == other.price
         )
 
     def to_human_string(self):
@@ -142,7 +147,7 @@ class Alert:
         return self.users
 
     async def add_user(
-        self, table: Table, user: pdb.User, consistent: bool = False
+            self, table: Table, user: pdb.User, consistent: bool = False
     ) -> None:
         await self._lazy_load(table, consistent=consistent)
 
@@ -150,7 +155,7 @@ class Alert:
             await self._append_user(table=table, user=user)
 
     async def remove_user(
-        self, table: Table, user: pdb.User, consistent: bool = True
+            self, table: Table, user: pdb.User, consistent: bool = True
     ) -> None:
         await self._lazy_load(table, consistent=consistent)