Add member name conflict warning. Closes #10.

src/pluralkit/bot/commands/__init__.py

@@ -103,8 +103,7 @@ class CommandContext:
     async def reply_warn(self, content=None, embed=None):
         return await self.reply(content="\u26a0 {}".format(content or ""), embed=embed)
 
-    async def confirm_react(self, user: Union[discord.Member, discord.User], message: str):
-        message = await self.reply(message)
+    async def confirm_react(self, user: Union[discord.Member, discord.User], message: discord.Message):
         await message.add_reaction("\u2705")  # Checkmark
         await message.add_reaction("\u274c")  # Red X
 

src/pluralkit/bot/commands/member_commands.py

@@ -19,6 +19,12 @@ async def new_member(ctx: CommandContext):
 
     new_name = ctx.remaining()
 
+    existing_member = await Member.get_member_by_name(ctx.conn, system.id, new_name)
+    if existing_member:
+        msg = await ctx.reply_warn("There is already a member with this name, with the ID `{}`. Do you want to create a duplicate member anyway?".format(existing_member.hid))
+        if not await ctx.confirm_react(ctx.message.author, msg):
+            raise CommandError("Member creation cancelled.")
+
     try:
         member = await system.create_member(ctx.conn, new_name)
     except PluralKitError as e:
@@ -39,6 +45,13 @@ async def member_name(ctx: CommandContext):
     member = await ctx.pop_member(CommandError("You must pass a member name.", help=help.edit_member))
     new_name = ctx.pop_str(CommandError("You must pass a new member name.", help=help.edit_member))
 
+    # Warn if there's a member by the same name already
+    existing_member = await Member.get_member_by_name(ctx.conn, system.id, new_name)
+    if existing_member:
+        msg = await ctx.reply_warn("There is already a member with this name, with the ID `{}`. Do you want to rename this member anyway? This will result in two members with the same name.".format(existing_member.hid))
+        if not await ctx.confirm_react(ctx.message.author, msg):
+            raise CommandError("Member renaming cancelled.")
+
     await member.set_name(ctx.conn, new_name)
     await ctx.reply_ok("Member name updated.")
 

src/pluralkit/bot/commands/switch_commands.py

@@ -106,7 +106,7 @@ async def switch_move(ctx: CommandContext):
         new_relative = humanize.naturaltime(pluralkit.utils.fix_time(new_time))
 
         # Confirm with user
-        switch_confirm_message = "This will move the latest switch ({}) from {} ({}) to {} ({}). Is this OK?".format(members, last_absolute, last_relative, new_absolute, new_relative)
+        switch_confirm_message = await ctx.reply("This will move the latest switch ({}) from {} ({}) to {} ({}). Is this OK?".format(members, last_absolute, last_relative, new_absolute, new_relative))
         if not await ctx.confirm_react(ctx.message.author, switch_confirm_message):
             raise CommandError("Switch move cancelled.")
 

src/pluralkit/bot/commands/system_commands.py

@@ -112,9 +112,8 @@ async def system_link(ctx: CommandContext):
     if account_system:
         raise CommandError(AccountAlreadyLinkedError(account_system).message)
 
-    if not await ctx.confirm_react(linkee,
-                                   "{}, please confirm the link by clicking the ✅ reaction on this message.".format(
-                                       linkee.mention)):
+    msg = await ctx.reply("{}, please confirm the link by clicking the \u2705 reaction on this message.".format(linkee.mention))
+    if not await ctx.confirm_react(linkee, msg):
         raise CommandError("Account link cancelled.")
 
     await system.link_account(ctx.conn, linkee.id)

src/pluralkit/bot/utils.py

@@ -10,9 +10,11 @@ from pluralkit.member import Member
 
 logger = logging.getLogger("pluralkit.utils")
 
+
 def escape(s):
     return s.replace("`", "\\`")
 
+
 def bounds_check_member_name(new_name, system_tag):
     if len(new_name) > 32:
         return "Name cannot be longer than 32 characters."
@@ -21,6 +23,7 @@ def bounds_check_member_name(new_name, system_tag):
         if len("{} {}".format(new_name, system_tag)) > 32:
             return "This name, combined with the system tag ({}), would exceed the maximum length of 32 characters. Please reduce the length of the tag, or use a shorter name.".format(system_tag)
 
+
 async def parse_mention(client: discord.Client, mention: str) -> Optional[discord.User]:
     # First try matching mention format
     match = re.fullmatch("<@!?(\\d+)>", mention)

src/pluralkit/system.py

@@ -147,6 +147,11 @@ class System(namedtuple("System", ["id", "hid", "name", "description", "tag", "a
             proxy_prefix = member.prefix or ""
             proxy_suffix = member.suffix or ""
 
+            if not proxy_prefix and not proxy_suffix:
+                # If the member has neither a prefix or a suffix, cancel early
+                # Otherwise it'd match any message no matter what
+                continue
+
             # Check if the message matches these tags
             if message.startswith(proxy_prefix) and message.endswith(proxy_suffix):
                 # If the message starts with a mention, "separate" that and match the bit after