feat: send initial notification after subscription (#14)

bot.py

@@ -19,17 +19,13 @@
 )
 from settings import Settings
 from commands.subscribe import subscribe_handler
-from utils import encode_url_params
+from utils import encode_url_params, get_fee
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s - %(message)s")
 logging.getLogger("apscheduler").setLevel(logging.WARN)
 logging.getLogger("httpx").setLevel(logging.WARN)
 
 
-def get_fee(fees: Fees, subscription: Subscription) -> float | None:
-    return fees.get(subscription.from_asset, {}).get(subscription.to_asset, None)
-
-
 async def notify_subscription(
     bot: Bot,
     subscription: Subscription,

commands/subscribe.py

@@ -25,6 +25,7 @@
     get_subscriptions,
     get_previous,
 )
+from utils import encode_url_params, get_fee
 
 FROM_ASSET, TO_ASSET, THRESHOLD, CUSTOM_THRESHOLD = range(4)
 
@@ -116,8 +117,12 @@ async def save_threshold(
             return
 
         if await add_subscription(session, subscription):
+            latest = await get_previous(session, ALL_FEES)
+            current_value = get_fee(latest, subscription)
+            url = encode_url_params(subscription.from_asset, subscription.to_asset)
             await chat.send_message(
-                f"You have subscribed to fee alerts for {subscription.pretty_string()}!",
+                f"You have subscribed to fee alerts for *{subscription.pretty_string()}*!\nCurrent fees: [{current_value}%]({url})",
+                parse_mode="markdown",
             )
             logging.info(f"Added: {subscription}")
         else:

utils.py

@@ -1,6 +1,11 @@
 from urllib.parse import urlencode
 
-from consts import PRO_URL, SwapType
+from consts import PRO_URL, SwapType, Fees
+from db import Subscription
+
+
+def get_fee(fees: Fees, subscription: Subscription) -> float | None:
+    return fees.get(subscription.from_asset, {}).get(subscription.to_asset, None)
 
 
 def currency_to_asset(swap_type: SwapType, currency: str, is_send: bool):