From f9dd82f2018ff50ad69e45b17cf64ca42fa1ac53 Mon Sep 17 00:00:00 2001
From: Dark <7890309+DarkView@users.noreply.github.com>
Date: Thu, 17 Jun 2021 02:30:12 +0200
Subject: [PATCH] Add member_leave automod trigger

At least i think so - cant test it until knub changes are done
---
 backend/src/plugins/Automod/AutomodPlugin.ts  |  3 ++-
 backend/src/plugins/Automod/constants.ts      |  1 +
 ...JoinEvt.ts => RunAutomodOnJoinLeaveEvt.ts} | 22 +++++++++++++++++++
 .../Automod/triggers/availableTriggers.ts     |  2 ++
 .../plugins/Automod/triggers/memberLeave.ts   | 20 +++++++++++++++++
 backend/src/plugins/Automod/types.ts          |  3 ++-
 6 files changed, 49 insertions(+), 2 deletions(-)
 rename backend/src/plugins/Automod/events/{RunAutomodOnJoinEvt.ts => RunAutomodOnJoinLeaveEvt.ts} (58%)
 create mode 100644 backend/src/plugins/Automod/triggers/memberLeave.ts

diff --git a/backend/src/plugins/Automod/AutomodPlugin.ts b/backend/src/plugins/Automod/AutomodPlugin.ts
index d57df9ed..eb2484dd 100644
--- a/backend/src/plugins/Automod/AutomodPlugin.ts
+++ b/backend/src/plugins/Automod/AutomodPlugin.ts
@@ -20,7 +20,7 @@ import { AntiraidClearCmd } from "./commands/AntiraidClearCmd";
 import { SetAntiraidCmd } from "./commands/SetAntiraidCmd";
 import { ViewAntiraidCmd } from "./commands/ViewAntiraidCmd";
 import { runAutomodOnCounterTrigger } from "./events/runAutomodOnCounterTrigger";
-import { RunAutomodOnJoinEvt } from "./events/RunAutomodOnJoinEvt";
+import { RunAutomodOnJoinEvt, RunAutomodOnLeaveEvt } from "./events/RunAutomodOnJoinLeaveEvt";
 import { RunAutomodOnMemberUpdate } from "./events/RunAutomodOnMemberUpdate";
 import { runAutomodOnMessage } from "./events/runAutomodOnMessage";
 import { runAutomodOnModAction } from "./events/runAutomodOnModAction";
@@ -176,6 +176,7 @@ export const AutomodPlugin = zeppelinGuildPlugin<AutomodPluginType>()({
   events: [
     RunAutomodOnJoinEvt,
     RunAutomodOnMemberUpdate,
+    RunAutomodOnLeaveEvt,
     // Messages use message events from SavedMessages, see onLoad below
   ],
 
diff --git a/backend/src/plugins/Automod/constants.ts b/backend/src/plugins/Automod/constants.ts
index d6f30b86..1f46f2e3 100644
--- a/backend/src/plugins/Automod/constants.ts
+++ b/backend/src/plugins/Automod/constants.ts
@@ -15,4 +15,5 @@ export enum RecentActionType {
   VoiceChannelMove,
   MemberJoin,
   Sticker,
+  MemberLeave,
 }
diff --git a/backend/src/plugins/Automod/events/RunAutomodOnJoinEvt.ts b/backend/src/plugins/Automod/events/RunAutomodOnJoinLeaveEvt.ts
similarity index 58%
rename from backend/src/plugins/Automod/events/RunAutomodOnJoinEvt.ts
rename to backend/src/plugins/Automod/events/RunAutomodOnJoinLeaveEvt.ts
index 17e98ba0..faaff383 100644
--- a/backend/src/plugins/Automod/events/RunAutomodOnJoinEvt.ts
+++ b/backend/src/plugins/Automod/events/RunAutomodOnJoinLeaveEvt.ts
@@ -25,3 +25,25 @@ export const RunAutomodOnJoinEvt = typedGuildEventListener<AutomodPluginType>()(
     });
   },
 });
+
+export const RunAutomodOnLeaveEvt = typedGuildEventListener<AutomodPluginType>()({
+  event: "guildMemberRemove",
+  listener({ pluginData, args: { member } }) {
+    const context: AutomodContext = {
+      timestamp: Date.now(),
+      partialMember: member,
+      joined: true,
+    };
+
+    pluginData.state.queue.add(() => {
+      pluginData.state.recentActions.push({
+        type: RecentActionType.MemberLeave,
+        context,
+        count: 1,
+        identifier: null,
+      });
+
+      runAutomod(pluginData, context);
+    });
+  },
+});
diff --git a/backend/src/plugins/Automod/triggers/availableTriggers.ts b/backend/src/plugins/Automod/triggers/availableTriggers.ts
index dbd02cc8..e62e811d 100644
--- a/backend/src/plugins/Automod/triggers/availableTriggers.ts
+++ b/backend/src/plugins/Automod/triggers/availableTriggers.ts
@@ -17,6 +17,7 @@ import { MatchRegexTrigger } from "./matchRegex";
 import { MatchWordsTrigger } from "./matchWords";
 import { MemberJoinTrigger } from "./memberJoin";
 import { MemberJoinSpamTrigger } from "./memberJoinSpam";
+import { MemberLeaveTrigger } from "./memberLeave";
 import { MentionSpamTrigger } from "./mentionSpam";
 import { MessageSpamTrigger } from "./messageSpam";
 import { MuteTrigger } from "./mute";
@@ -72,6 +73,7 @@ export const AvailableTriggers = t.type({
   match_links: MatchLinksTrigger.configType,
   match_attachment_type: MatchAttachmentTypeTrigger.configType,
   member_join: MemberJoinTrigger.configType,
+  member_leave: MemberLeaveTrigger.configType,
   role_added: RoleAddedTrigger.configType,
   role_removed: RoleRemovedTrigger.configType,
 
diff --git a/backend/src/plugins/Automod/triggers/memberLeave.ts b/backend/src/plugins/Automod/triggers/memberLeave.ts
new file mode 100644
index 00000000..9af9bc4f
--- /dev/null
+++ b/backend/src/plugins/Automod/triggers/memberLeave.ts
@@ -0,0 +1,20 @@
+import * as t from "io-ts";
+import { automodTrigger } from "../helpers";
+
+export const MemberLeaveTrigger = automodTrigger<unknown>()({
+  configType: t.type({}),
+
+  defaultConfig: {},
+
+  async match({ pluginData, context, triggerConfig }) {
+    if (!context.joined || !context.member) {
+      return;
+    }
+
+    return {};
+  },
+
+  renderMatchInformation({ pluginData, contexts, triggerConfig }) {
+    return "";
+  },
+});
diff --git a/backend/src/plugins/Automod/types.ts b/backend/src/plugins/Automod/types.ts
index 100899bd..3981860d 100644
--- a/backend/src/plugins/Automod/types.ts
+++ b/backend/src/plugins/Automod/types.ts
@@ -1,4 +1,4 @@
-import { GuildMember, User } from "discord.js";
+import { GuildMember, PartialGuildMember, User } from "discord.js";
 import * as t from "io-ts";
 import { BasePluginType, CooldownManager } from "knub";
 import { SavedMessage } from "../../data/entities/SavedMessage";
@@ -115,6 +115,7 @@ export interface AutomodContext {
   user?: User;
   message?: SavedMessage;
   member?: GuildMember;
+  partialMember?: GuildMember | PartialGuildMember;
   joined?: boolean;
   rolesChanged?: {
     added?: string[];