feat: add member joining functions

src/classes/bot.py

@@ -1,23 +1,44 @@
-from disnake.ext import commands
+import os
 
 import disnake
 import dotenv
-import os
+from disnake.ext import commands
 
 dotenv.load_dotenv()
 
-class MyBot(commands.InteractionBot):
-    def __init__(self):
-        super().__init__(intents=disnake.Intents.none()) # temporary
 
-    async def on_message(self, message: disnake.Message):
-        if "rewrite" in message.content.lower() and "rust" in message.content.lower() and message.guild.id == int(os.environ["FUN_GUILD"]):
+class MyBot(commands.InteractionBot):
+    def __init__(self) -> None:
+        super().__init__(
+            intents=disnake.Intents(
+                messages=True,
+                members=True,
+                guilds=True,
+            )
+        )
+        self.cached_guild: disnake.Guild
+        self.guild_member_role: disnake.Role | None = None
+        self.guild_welcome_channel: disnake.TextChannel | None = None
+
+    async def on_message(self, message: disnake.Message) -> None:
+        assert message.guild is not None
+        if (
+            "rewrite" in message.content.lower()
+            and "rust" in message.content.lower()
+            and message.guild.id == self.cached_guild.id
+        ):
             await message.channel.send("never, stop asking")
 
-    async def on_ready(self):
-        print(f"logged in as {str(self.user)}")
+    async def on_ready(self) -> None:
+        self.cached_guild = await self.fetch_guild(int(os.environ["FUN_GUILD"]))
 
-    async def on_member_join(self, member: disnake.Member):
-        if member.guild.id == int(os.environ["FUN_GUILD"]):
-            role = member.guild.get_role(1275732314696978473)
-            await member.add_roles(role)
+        if env_welcome_role := os.getenv("MEMBER_ROLE"):
+            self.guild_member_role = await self.cached_guild.fetch_role(
+                int(env_welcome_role)
+            )
+
+        if env_welcome_channel := os.getenv("WELCOME_CHANNEL"):
+            self.guild_welcome_channel = await self.cached_guild.fetch_channel(  # pyright: ignore[reportAttributeAccessIssue]
+                int(env_welcome_channel)
+            )
+        print(f"logged in as {str(self.user)}")

src/plugins/member_join_management.py

@@ -0,0 +1,93 @@
+from datetime import UTC, datetime, timedelta
+
+import disnake_plugins as plugins
+from disnake import Event, HTTPException, Member, Message
+from disnake.ext import tasks
+from disnake.utils import format_dt
+
+from src.classes.bot import MyBot
+
+plugin = plugins.Plugin[MyBot]()
+
+MIN_JOIN_MINUTES = 15
+MIN_JOIN_DAYS = 14
+
+last_message_store: dict[int, int] = {}
+
+
+@plugin.listener(Event.member_join)
+async def member_join_store(member: Member) -> None:
+    if not plugin.bot.guild_welcome_channel:
+        return
+
+    welcome_message = await plugin.bot.guild_welcome_channel.send(
+        f"{member.mention}, welcome to soteria! do you want music??"
+    )
+    last_message_store[member.id] = welcome_message.id
+
+
+@plugin.listener(Event.message)
+async def last_sent_message_store(message: Message) -> None:
+    last_message_store[message.author.id] = message.id
+
+
+new_member_store: dict[Member, datetime] = {}
+
+
+@plugin.listener(Event.member_join)
+async def new_member_role_assign(member: Member) -> None:
+    if not member.joined_at:
+        return
+
+    new_member_store[member] = member.joined_at
+
+
+@plugin.listener(Event.member_remove)
+async def member_leave_react(member: Member) -> None:
+
+    cached_last_sent_message = last_message_store.get(member.id)
+    if not cached_last_sent_message:
+        return
+
+    last_sent_message = plugin.bot.get_message(cached_last_sent_message)
+    if not last_sent_message:
+        return
+
+    try:
+        await last_sent_message.add_reaction("<a:goodbye:1268952442821935289>")
+    except HTTPException:
+        await last_sent_message.add_reaction("\U0001f6aa")  # door emoji
+    last_message_store.pop(last_message_store[member.id], None)
+    new_member_store.pop(member, None)
+
+
+@plugin.register_loop(wait_until_ready=True)
+@tasks.loop(minutes=1)
+async def new_member_role_assign_timer() -> None:
+    if not plugin.bot.guild_member_role:
+        return
+
+    for member, joined_at in new_member_store.copy().items():
+        if datetime.now(UTC) > joined_at + timedelta(minutes=MIN_JOIN_MINUTES):
+            await member.add_roles(
+                plugin.bot.guild_member_role,
+                reason="member has been in the guild for 15 minutes",
+            )
+            new_member_store.pop(member, None)
+
+
+@plugin.listener(Event.member_join)
+async def member_created_at_checker(member: Member) -> None:
+    since_creation = datetime.now(tz=UTC) - member.created_at
+    days_since_creation = since_creation.days
+    if days_since_creation < MIN_JOIN_DAYS:
+        await member.send(
+            f"you have been kicked from **{member.guild.name}** as your account is not at least {MIN_JOIN_DAYS} days old. "
+            f"to minimise the potential for raids or spam, we will not let you join until {format_dt(member.created_at + timedelta(days=MIN_JOIN_DAYS))}."
+        )
+        await member.kick(
+            reason=f"account too young. only {days_since_creation} days old"
+        )
+
+
+setup, teardown = plugin.create_extension_handlers()