add /help message

src/remember_remember_bot/commands.py

@@ -68,6 +68,16 @@ def store_file(msg: deltachat.Message):
         msg.chat.set_ephemeral_timer(timer)
 
 
+def send_help(msg: deltachat.Message):
+    """Reply to the user with a help message."""
+    help_text = """
+/start\tStart getting daily reminders.
+/stop\tStop getting daily reminders.
+/file\t(with an attachment) Add a list of entries which I can remind you of at specific dates.
+    """
+    reply(msg.chat, help_text, quote=msg)
+
+
 def reply(
     chat: deltachat.Chat,
     text: str,

src/remember_remember_bot/loop.py

@@ -2,7 +2,7 @@ import time
 
 import deltachat
 
-from remember_remember_bot.commands import remind_chat, activate_chat, reply, store_file
+from remember_remember_bot.commands import remind_chat, activate_chat, reply, store_file, send_help
 from remember_remember_bot.util import check_new_day, update_day
 
 
@@ -30,4 +30,6 @@ def handle_incoming_message(msg: deltachat.Message):
             store_file(msg)
         else:
             activate_chat(msg)
+    else:
+        send_help(msg)
     msg.mark_seen()