Merge branch '26-signature-extraction-failed' into 'develop'

Resolve "Signature extraction failed"

Closes #26

See merge request ekzyis/musicube!23

.vscode/launch.json

@@ -9,7 +9,8 @@
       "type": "python",
       "request": "launch",
       "program": "src/bot.py",
-      "console": "integratedTerminal"
+      "console": "integratedTerminal",
+      "justMyCode": false
     },
     {
       "name": "pytest",

requirements.txt

@@ -33,4 +33,4 @@ toml==0.10.2
 typing-extensions==3.10.0.2
 wrapt==1.12.1
 yarl==1.6.3
-youtube-dl==2021.6.6
+youtube-dl==2021.12.17

src/error.py

@@ -1,4 +1,5 @@
 import logging
+import re
 
 from discord.ext import commands
 
@@ -27,8 +28,11 @@ class ErrorHandler(commands.Cog):
     else:
       message = "Oh no! Something went wrong while running the command!"
 
+    ansi_escape = re.compile(r'\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])')
+    message = ansi_escape.sub("", message)
+
     self.logger.error('Error during command "%s": %s', command_name, message)
-    embed = ErrorMessage(message)
+    embed = ErrorMessage(message, command_name=command_name)
     await ctx.send(embed=embed)
 
 

src/message.py

@@ -1,14 +1,31 @@
+import re
+
 import discord
 
 
 class BotMessage(discord.Embed):
-  pass
+  def __init__(self, **kwargs):
+    title = kwargs.pop("title", None)[:256]
+    if title is not None:
+      # Max embed title length is 256
+      title = title[:256]
+    super().__init__(
+        **kwargs,
+        title=title
+    )
 
 
 class ErrorMessage(BotMessage):
-  def __init__(self, message):
+  def __init__(self, message, *, command_name: str = None):
+    title = message
+    if command_name:
+      title = f'Error during command "{command_name}"'
+    description = None
+    if match := re.search(r"(?P<error>\w+Error): ?(ERROR: ?)?(?P<message>.*): ?Traceback", message):
+      description = f"{match.group('error')}: {match.group('message')}"
     super().__init__(
-        title=f"Error: {message}",
+        title=title,
+        description=description,
         color=discord.Color.red()
     )