Return truncted data from encode_truncate and hold it in IRCLine.Line

src/IRCLine.py

@@ -2,9 +2,11 @@ import datetime, typing
 from src import IRCObject
 
 class Line(IRCObject.Object):
-    def __init__(self, send_time: datetime.datetime, data: bytes):
+    def __init__(self, send_time: datetime.datetime, data: bytes,
+            truncated: str):
         self.send_time = send_time
         self.data = data
+        self.truncated = truncated
 
         self._on_send = [] # type: typing.List[typing.Callable[[], None]]
 

src/IRCServer.py

@@ -315,10 +315,11 @@ class Server(IRCObject.Object):
                 break
 
         line_stripped = line.split("\n", 1)[0].strip("\r")
-        encoded = utils.encode_truncate(line_stripped, "utf8", LINE_CUTOFF)
+        encoded, truncated = utils.encode_truncate(
+            line_stripped, "utf8", LINE_CUTOFF)
         encoded = b"%s\r\n" % encoded
 
-        line_obj = IRCLine.Line(datetime.datetime.utcnow(), encoded)
+        line_obj = IRCLine.Line(datetime.datetime.utcnow(), encoded, truncated)
         self.queued_lines.append(line_obj)
 
         self.bot.log.debug("%s (raw send) | %s", [str(self), line])

src/utils/__init__.py

@@ -190,12 +190,15 @@ def is_ip(s: str) -> bool:
         return False
     return True
 
-def encode_truncate(s: str, encoding: str, byte_max: int) -> bytes:
+def encode_truncate(s: str, encoding: str, byte_max: int
+        ) -> typing.Tuple[bytes, str]:
     encoded = b""
-    for character in s:
+    truncated = ""
+    for i, character in enumerate(s):
         encoded_character = character.encode(encoding)
         if len(encoded + encoded_character) > byte_max:
+            truncated = s[i:]
             break
         else:
             encoded += encoded_character
-    return encoded
+    return encoded, truncated