add /quote, /popfirst and /poplast

topicbot/__main__.py

@@ -74,6 +74,24 @@ async def message(update: Update, context: ContextTypes.DEFAULT_TYPE):
         print("Changed topic to:", new_topic)
         channel.save()
 
+    sep = '┃'
+
+    current_topic = []
+    if channel.topic is not None and len(channel.topic.strip()) != 0:
+        current_topic = channel.topic.split(sep)
+
+    async def append(args):
+        if len(args) > config.MAX_LENGTH:
+            await update.message.reply_text("this won't fit in the topic")
+            return
+
+
+        current_topic.insert(0, args)
+        while len(sep.join(current_topic)) > config.MAX_LENGTH:
+            current_topic.pop()
+
+        await topic_update(sep.join(current_topic))
+
     if cmd == '/topic':
         if args == '':
             if channel.topic is not None:
@@ -82,23 +100,34 @@ async def message(update: Update, context: ContextTypes.DEFAULT_TYPE):
         await topic_update(args)
 
     if cmd == '/append':
-        sep = '┃'
-        if len(args) > config.MAX_LENGTH:
-            await update.message.reply_text("this won't fit in the topic")
+        await append(args)
+        return
+        
+
+    if cmd == '/quote':
+        m = update.message.reply_to_message
+        if m is None:
+            await update.message.reply_text("reply to a message with the command to quote it")
             return
 
-        current_topic = []
-        if channel.topic is not None and len(channel.topic.strip()) != 0:
-            current_topic = channel.topic.split(sep)
-
-        current_topic.insert(0, args)
-        while len(sep.join(current_topic)) > config.MAX_LENGTH:
-            current_topic.pop()
-
-        await topic_update(sep.join(current_topic))
+        attribution = f' ~@{m.from_user.username}' if m.from_user.username is not None else ''
+        quote = f'"{m.text}"{attribution}'
+        await append(quote)
         return
 
+    if cmd == '/popfirst':
+        if len(current_topic) <= 1:
+            await update.message.reply_text("can't pop the last existing item")
+            return
+        current_topic.pop(0)
+        await topic_update(sep.join(current_topic))
 
+    if cmd == '/poplast':
+        if len(current_topic) <= 1:
+            await update.message.reply_text("can't pop the last existing item")
+            return
+        current_topic.pop()
+        await topic_update(sep.join(current_topic))
 
 
     print(update, type(update))