Move some parts of assistant to a different repo as plugins

telethon_examples/README.md

@@ -75,6 +75,11 @@ This example is the actual bot account [@TelethonianBot] running in the
 [official Telethon's chat] to help people out. The file is a bit big and
 assumes some [`asyncio`] knowledge, but otherwise is easy to follow.
 
+In addition, it has optional plugins, which may be useful for your own code.
+The plugins can be found at https://github.com/Lonami/TelethonianBotExt and
+should be cloned into a `plugins` folder next to `assistant.py` for them to
+work.
+
 ### [`interactive_telegram_client.py`]
 
 * Usable as: **user**.

telethon_examples/assistant.py

@@ -1,5 +1,4 @@
 import asyncio
-import difflib
 import html
 import logging
 import os
@@ -9,7 +8,6 @@ import time
 import urllib.parse
 
 from telethon import TelegramClient, events, types, custom, utils, errors
-from telethon.extensions import markdown
 
 logging.basicConfig(level=logging.WARNING)
 logging.getLogger('asyncio').setLevel(logging.ERROR)
@@ -20,6 +18,7 @@ except ImportError:
     aiohttp = None
     logging.warning('aiohttp module not available; #haste command disabled')
 
+
 def get_env(name, message, cast=str):
     if name in os.environ:
         return os.environ[name]
@@ -70,11 +69,6 @@ UPDATES = (
     'Check out [Working with Updates](https://telethon.readthedocs.io'
     '/en/latest/basic/updates.html) in the documentation.'
 )
-DOCS_CLIENT = 'https://telethon.readthedocs.io/en/latest/modules/client.html#'
-DOCS_MESSAGE = (
-    'https://telethon.readthedocs.io/en/latest/'
-    'modules/custom.html#telethon.tl.custom.message.Message.'
-)
 
 SPAM = (
     "Telethon is free software. That means using it is a right: you are " 
@@ -219,39 +213,6 @@ async def handler(event):
     ])
 
 
-def get_docs_message(kind, query):
-    kind = kind.lower()
-    cls = {'client': TelegramClient, 'msg': custom.Message}[kind]
-
-    attr = search_attr(cls, query.lower())
-    if not attr:
-        return f'No such method "{query}" :/'
-
-    name = attr
-    if kind == 'client':
-        attr = attr_fullname(cls, attr)
-        url = DOCS_CLIENT
-    elif kind == 'msg':
-        name = f'Message.{name}'
-        url = DOCS_MESSAGE
-    else:
-        return f'No documentation for "{kind}"'
-
-    return f'Documentation for [{name}]({url}{attr})'
-
-
-@bot.on(events.NewMessage(pattern='(?i)#(client|msg) (.+)', forwards=False))
-async def handler(event):
-    """#client or #msg query: Looks for the given attribute in RTD."""
-    await event.delete()
-
-    await event.respond(
-        get_docs_message(kind=event.pattern_match.group(1),
-                         query=event.pattern_match.group(2)),
-        reply_to=event.reply_to_msg_id
-    )
-
-
 @bot.on(events.NewMessage(pattern='(?i)#(ask|question)', forwards=False))
 async def handler(event):
     """#ask or #question: Advices the user to ask a better question."""
@@ -270,6 +231,7 @@ async def handler(event):
         event.respond(SPAM, reply_to=event.reply_to_msg_id)
     ])
 
+
 @bot.on(events.NewMessage(pattern='(?i)#(ot|offtopic)', forwards=False))
 async def handler(event):
     """#ot, #offtopic: Tells the user to move to @TelethonOffTopic."""
@@ -397,81 +359,28 @@ async def handler(event):
             text=GOOD_RESOURCES,
             link_preview=False
         )
-    else:
-        m = re.match('(client|msg).(.+)', query)
-        if m:
-            text = get_docs_message(m.group(1), m.group(2))
-            query = markdown.parse(text)[0]
-            result = builder.article(query, text=text)
-        else:
-            m = re.match('ref.(.+)', query)
-            if m:
-                query = m.group(1)
-                text = DOCS.format(query, urllib.parse.quote(query))
-                result = builder.article(query, text=text)
 
-    await event.answer([result] if result else None)
+    # NOTE: You should always answer, but we want plugins to be able to answer
+    #       too (and we can only answer once), so we don't always answer here.
+    if result:
+        await event.answer([result])
 
 
 # ==============================   Inline  ==============================
-# ============================== AutoReply ==============================
-
-
-@bot.on(events.NewMessage(pattern='(?i)how (.+?)[\W]*$', forwards=False))
-@bot.on(events.NewMessage(pattern='(.+?)[\W]*?\?+', forwards=False))
-async def handler(event):
-    words = event.pattern_match.group(1).split()
-    rates = [
-        search_attr(TelegramClient, ' '.join(words[-i:]), threshold=None)
-        for i in range(1, 4)
-    ]
-    what = max(rates, key=lambda t: t[1])
-    if what[1] < 0.75:
-        return
-
-    name = what[0]
-    if len(name) < 4:
-        return  # Short words trigger very commonly (such as "on")
-
-    attr = attr_fullname(TelegramClient, name)
-    await event.reply(
-        f'Documentation for [{name}]({DOCS_CLIENT}{attr})',
-        reply_to=event.reply_to_msg_id
-    )
-
-    # We have two @client.on, both could fire, stop that
-    raise events.StopPropagation
-
-
-# ============================== AutoReply ==============================
-# ==============================  Helpers  ==============================
-
-
-def search_attr(cls, query, threshold=0.6):
-    seq = difflib.SequenceMatcher(b=query, autojunk=False)
-    scores = []
-    for n in dir(cls):
-        if not n.startswith('_'):
-            seq.set_seq1(n)
-            scores.append((n, seq.ratio()))
-
-    scores.sort(key=lambda t: t[1], reverse=True)
-    if threshold is None:
-        return scores[0]
-    else:
-        return scores[0][0] if scores[0][1] >= threshold else None
-
-
-def attr_fullname(cls, n):
-    m = getattr(cls, n)
-    cls = sys.modules.get(m.__module__)
-    for name in m.__qualname__.split('.')[:-1]:
-        cls = getattr(cls, name)
-    return cls.__module__ + '.' + cls.__name__ + '.' + m.__name__
-
-
-# ==============================  Helpers  ==============================
-
 
 bot.start(bot_token=TOKEN)
+
+# NOTE: This example has optional "plugins", which you can get by running:
+#
+#           git clone https://github.com/Lonami/TelethonianBotExt plugins
+#
+#       Into the same folder (so you would have `assistant.py` next to
+#       the now downloaded `plugins/` folder). We try importing them so
+#       that the example runs fine without them, but optionally load them.
+try:
+    import plugins
+    plugins.init(bot)
+except ImportError:
+    pass
+
 bot.run_until_disconnected()