From e5bc3d00973f1f46b61f4472270766070f509f3f Mon Sep 17 00:00:00 2001
From: NotNite <hi@notnite.com>
Date: Mon, 20 Sep 2021 15:28:57 -0400
Subject: [PATCH 1/2] Remove outdated docs

---
 litecord/system_messages.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/litecord/system_messages.py b/litecord/system_messages.py
index 5f1dfe4..8431aeb 100644
--- a/litecord/system_messages.py
+++ b/litecord/system_messages.py
@@ -150,8 +150,6 @@ async def send_sys_message(
 
     Parameters
     ----------
-    app
-        The app instance.
     channel_id
         The channel ID to send the system message to.
     m_type

From 787d83cd809a12ee6ee144b9ca74571fba94d197 Mon Sep 17 00:00:00 2001
From: NotNite <hi@notnite.com>
Date: Mon, 20 Sep 2021 16:49:10 -0400
Subject: [PATCH 2/2] Add guild join system message

---
 litecord/common/guilds.py   | 15 ++++++++--
 litecord/system_messages.py | 21 ++++++++++++++
 tests/test_invites.py       | 58 +++++++++++++++++++++++++++++++++++++
 3 files changed, 92 insertions(+), 2 deletions(-)
 create mode 100644 tests/test_invites.py

diff --git a/litecord/common/guilds.py b/litecord/common/guilds.py
index a9f3b88..c00ce80 100644
--- a/litecord/common/guilds.py
+++ b/litecord/common/guilds.py
@@ -23,8 +23,9 @@ from quart import current_app as app
 
 from ..permissions import get_role_perms, get_permissions
 from ..utils import dict_get, maybe_lazy_guild_dispatch
-from ..enums import ChannelType
+from ..enums import ChannelType, MessageType
 from litecord.pubsub.member import dispatch_member
+from litecord.system_messages import send_sys_message
 
 log = Logger(__name__)
 
@@ -323,7 +324,17 @@ async def add_member(guild_id: int, user_id: int, *, basic=False):
     if basic:
         return
 
-    # TODO: system message for member join
+    system_channel_id = await app.db.fetchval(
+        """
+        SELECT system_channel_id FROM guilds
+        WHERE id = $1
+        """,
+        guild_id,
+    )
+    if system_channel_id:
+        await send_sys_message(
+            system_channel_id, MessageType.GUILD_MEMBER_JOIN, user_id
+        )
 
     await app.db.execute(
         """
diff --git a/litecord/system_messages.py b/litecord/system_messages.py
index 8431aeb..b32168d 100644
--- a/litecord/system_messages.py
+++ b/litecord/system_messages.py
@@ -46,6 +46,26 @@ async def _handle_pin_msg(channel_id, _pinned_id, author_id):
     return new_id
 
 
+async def _handle_guild_join_msg(channel_id, user_id):
+    """Handle the system join message."""
+    new_id = app.winter_factory.snowflake()
+
+    await app.db.execute(
+        """
+        INSERT INTO messages
+            (id, channel_id, guild_id, author_id, content, message_type)
+        VALUES
+            ($1, $2, NULL, $3, '', $4)
+        """,
+        new_id,
+        channel_id,
+        user_id,
+        MessageType.GUILD_MEMBER_JOIN.value,
+    )
+
+    return new_id
+
+
 # TODO: decrease repetition between add and remove handlers
 async def _handle_recp_add(channel_id, author_id, peer_id):
     new_id = app.winter_factory.snowflake()
@@ -163,6 +183,7 @@ async def send_sys_message(
     try:
         handler = {
             MessageType.CHANNEL_PINNED_MESSAGE: _handle_pin_msg,
+            MessageType.GUILD_MEMBER_JOIN: _handle_guild_join_msg,
             # gdm specific
             MessageType.RECIPIENT_ADD: _handle_recp_add,
             MessageType.RECIPIENT_REMOVE: _handle_recp_rmv,
diff --git a/tests/test_invites.py b/tests/test_invites.py
new file mode 100644
index 0000000..71320b6
--- /dev/null
+++ b/tests/test_invites.py
@@ -0,0 +1,58 @@
+"""
+
+Litecord
+Copyright (C) 2018-2019  Luna Mendes
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+
+import pytest
+
+pytestmark = pytest.mark.asyncio
+
+# todo: maybe add more tests lol
+# :)
+
+
+async def test_invite_join(test_cli_user):
+    guild = await test_cli_user.create_guild()
+    channel = guild.channels[0]
+
+    resp = await test_cli_user.patch(
+        f"/api/v9/guilds/{guild.id}",
+        json={
+            "system_channel_id": channel["id"],
+        },
+    )
+
+    assert resp.status_code == 200
+    rjson = await resp.json
+    assert rjson["system_channel_id"] == channel["id"]
+
+    resp = await test_cli_user.post(
+        f'/api/v9/channels/{channel["id"]}/invites', json={}
+    )
+
+    assert resp.status_code == 200
+    rjson = await resp.json
+    invite_code = rjson["code"]
+    assert rjson["channel"]["id"] == channel["id"]
+    assert rjson["guild"]["id"] == str(guild.id)
+
+    user = await test_cli_user.create_user()
+
+    resp = await test_cli_user.post(
+        f"/api/v9/invites/{invite_code}", headers={"Authorization": user.token}
+    )
+    assert resp.status_code == 200