From caff9c50aa2d1bb71fe07d246337a20ffe00f8a3 Mon Sep 17 00:00:00 2001
From: ambdroid <61042504+ambdroid@users.noreply.github.com>
Date: Wed, 13 Mar 2024 17:26:09 -0400
Subject: [PATCH] feat(core): add dispatch for autoproxy events (#621)

---
 PluralKit.Core/Dispatch/DispatchModels.cs     |  3 ++-
 PluralKit.Core/Dispatch/DispatchService.cs    | 24 ++++++++++++++++---
 PluralKit.Core/Models/Patch/AutoproxyPatch.cs | 19 +++++++++++++++
 docs/content/api/dispatch.md                  |  1 +
 docs/content/api/models.md                    |  2 ++
 5 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/PluralKit.Core/Dispatch/DispatchModels.cs b/PluralKit.Core/Dispatch/DispatchModels.cs
index ce758a1d..3d870a92 100644
--- a/PluralKit.Core/Dispatch/DispatchModels.cs
+++ b/PluralKit.Core/Dispatch/DispatchModels.cs
@@ -28,7 +28,8 @@ public enum DispatchEvent
     UPDATE_SWITCH,
     DELETE_SWITCH,
     DELETE_ALL_SWITCHES,
-    SUCCESSFUL_IMPORT
+    SUCCESSFUL_IMPORT,
+    UPDATE_AUTOPROXY,
 }
 
 public struct UpdateDispatchData
diff --git a/PluralKit.Core/Dispatch/DispatchService.cs b/PluralKit.Core/Dispatch/DispatchService.cs
index 58f88b56..73c7acd6 100644
--- a/PluralKit.Core/Dispatch/DispatchService.cs
+++ b/PluralKit.Core/Dispatch/DispatchService.cs
@@ -38,10 +38,28 @@ public class DispatchService
         }
     }
 
-    public Task Dispatch(SystemId systemId, ulong? guildId, ulong? channelId, AutoproxyPatch patch)
+    public async Task Dispatch(SystemId systemId, ulong? guildId, ulong? channelId, AutoproxyPatch patch)
     {
-        // todo
-        return Task.CompletedTask;
+        var repo = _provider.Resolve<ModelRepository>();
+        var system = await repo.GetSystem(systemId);
+        if (system.WebhookUrl == null)
+            return;
+
+        var memberUuid = patch.AutoproxyMember.IsPresent && patch.AutoproxyMember.Value is MemberId id
+            ? (await repo.GetMember(id)).Uuid.ToString()
+            : null;
+
+        var data = new UpdateDispatchData();
+        data.Event = DispatchEvent.UPDATE_AUTOPROXY;
+        data.SigningToken = system.WebhookToken;
+        data.SystemId = system.Uuid.ToString();
+        data.EventData = patch.ToJson(guildId, channelId, memberUuid);
+
+        _logger.Debug(
+            "Dispatching webhook for system {SystemId} autoproxy update in guild {GuildId}/{ChannelId}",
+            system.Id, guildId, channelId
+        );
+        await DoPostRequest(system.Id, system.WebhookUrl, data.GetPayloadBody());
     }
 
     public async Task Dispatch(SystemId systemId, UpdateDispatchData data)
diff --git a/PluralKit.Core/Models/Patch/AutoproxyPatch.cs b/PluralKit.Core/Models/Patch/AutoproxyPatch.cs
index 66d3c35c..529fda08 100644
--- a/PluralKit.Core/Models/Patch/AutoproxyPatch.cs
+++ b/PluralKit.Core/Models/Patch/AutoproxyPatch.cs
@@ -44,4 +44,23 @@ public class AutoproxyPatch: PatchObject
 
         return p;
     }
+
+    public JObject ToJson(ulong? guild_id, ulong? channel_id, string? memberId = null)
+    {
+        var o = new JObject();
+
+        o.Add("guild_id", guild_id?.ToString());
+        o.Add("channel_id", channel_id?.ToString());
+
+        if (AutoproxyMode.IsPresent)
+            o.Add("autoproxy_mode", AutoproxyMode.Value.ToString().ToLower());
+
+        if (AutoproxyMember.IsPresent)
+            o.Add("autoproxy_member", memberId);
+
+        if (LastLatchTimestamp.IsPresent)
+            o.Add("last_latch_timestamp", LastLatchTimestamp.Value.FormatExport());
+
+        return o;
+    }
 }
\ No newline at end of file
diff --git a/docs/content/api/dispatch.md b/docs/content/api/dispatch.md
index 03ff34fb..c26a8a39 100644
--- a/docs/content/api/dispatch.md
+++ b/docs/content/api/dispatch.md
@@ -55,3 +55,4 @@ PluralKit will send invalid requests to your endpoint, with `PING` event type, o
 |DELETE_SWITCH|a switch was deleted|null|old switch ID can be found in top-level `id` key|
 |DELETE_ALL_SWITCHES|your system's switches were bulk deleted|null|
 |SUCCESSFUL_IMPORT|some information was successfully imported through the `pk;import` command to your system|null|
+|UPDATE_AUTOPROXY|your system's autoproxy in a specific server and/or channel was updated|[autoproxy settings](/api/models#autoproxy-settings-model) with only modified keys|
diff --git a/docs/content/api/models.md b/docs/content/api/models.md
index c2542b46..81ff9781 100644
--- a/docs/content/api/models.md
+++ b/docs/content/api/models.md
@@ -134,6 +134,8 @@ Every PluralKit entity has two IDs: a short (5-character) ID and a longer UUID.
 ### Autoproxy settings model
 |key|type|notes|
 |---|---|---|
+|?guild_id|snowflake|only sent if the guild ID isn't already known (in dispatch payloads)|
+|?channel_id|snowflake|only sent if the channel ID isn't already known (in dispatch payloads)|
 |autoproxy_mode|[autoproxy mode](#autoproxy-mode-enum)||
 |autoproxy_member|?member id|must be `null` if autoproxy_mode is set to `front`|
 |last_latch_timestamp|?datetime|read-only|