Add Transformers.py

Transformers.py

@@ -0,0 +1,23 @@
+import discord
+from datetime import datetime
+from datetime_utils import to_unix
+from loguru import logger
+
+
+class DateTransformer(discord.app_commands.Transformer):
+    """
+    Converts date as 2022-12-24 to unix timestamp
+    """
+
+    async def transform(self, interaction: discord.Interaction, value: str, /) -> int:
+        logger.trace(f'Converting {value} to unix timestamp')
+
+        date_format = "%Y-%m-%d"
+
+        try:
+            date = to_unix(datetime.strptime(value, date_format))
+            return date
+
+        except Exception:
+            logger.opt(exception=True).warning(f"Failed to parse to datetime {value!r}")
+            raise