Created modules and organized code

handlers/credentials.py

@@ -0,0 +1,16 @@
+from telegram import Update
+from telegram.ext import ContextTypes
+from models import Users, Credential, Role
+
+async def setcredentials(update: Update, context: ContextTypes.DEFAULT_TYPE, users: Users):
+    user_id = str(update.effective_user.id)
+    args = context.args
+    if len(args) != 2:
+        return await update.message.reply_text("Usage: `/setcredentials <username> <password>`")
+    role = users.get_role(user_id)
+    if role not in (Role.ADMIN, Role.MEMBER):
+        return await update.message.reply_text("Only members or admins can set credentials")
+    if users.set_credentials(user_id, Credential(args[0], args[1])):
+        await update.message.reply_text("Credentials saved")
+    else:
+        await update.message.reply_text("Error saving credentials")