From 2c3fe180ef3a18fc8fa97d3bf0194cf245ed96a5 Mon Sep 17 00:00:00 2001
From: Anna <git@anna.lgbt>
Date: Sat, 27 Aug 2022 12:30:58 -0400
Subject: [PATCH] feat: begin adding filtering support

---
 client/ExtraChat/Client.cs           |  4 ++++
 client/ExtraChat/Ipc.cs              | 17 +++++++++++++++++
 client/ExtraChat/Util/PayloadUtil.cs | 22 ++++++++++++++++++++++
 3 files changed, 43 insertions(+)
 create mode 100644 client/ExtraChat/Util/PayloadUtil.cs

diff --git a/client/ExtraChat/Client.cs b/client/ExtraChat/Client.cs
index ee93c1b..8cb2d02 100644
--- a/client/ExtraChat/Client.cs
+++ b/client/ExtraChat/Client.cs
@@ -936,6 +936,7 @@ internal class Client : IDisposable {
         }
 
         this.Plugin.Commands.ReregisterAll();
+        this.Plugin.Ipc.BroadcastChannelNames();
     }
 
     private void HandleMessage(MessageResponse resp) {
@@ -948,6 +949,9 @@ internal class Client : IDisposable {
         var message = SeString.Parse(SecretBox.Decrypt(info.SharedSecret, resp.Message));
 
         var output = new SeStringBuilder();
+        // add a tag payload for filtering
+        output.Add(PayloadUtil.CreateTagPayload(resp.Channel));
+        output.Add(RawPayload.LinkTerminator);
 
         var colour = config.GetUiColour(resp.Channel);
         output.AddUiForeground(colour);
diff --git a/client/ExtraChat/Ipc.cs b/client/ExtraChat/Ipc.cs
index e41d70d..95bf5f6 100644
--- a/client/ExtraChat/Ipc.cs
+++ b/client/ExtraChat/Ipc.cs
@@ -14,17 +14,21 @@ internal class Ipc : IDisposable {
     private Plugin Plugin { get; }
     private ICallGateProvider<OverrideInfo, object> OverrideChannelColour { get; }
     private ICallGateProvider<Dictionary<string, uint>, Dictionary<string, uint>> ChannelCommandColours { get; }
+    private ICallGateProvider<Dictionary<Guid, string>, Dictionary<Guid, string>> ChannelNames { get; }
 
     internal Ipc(Plugin plugin) {
         this.Plugin = plugin;
 
         this.OverrideChannelColour = this.Plugin.Interface.GetIpcProvider<OverrideInfo, object>("ExtraChat.OverrideChannelColour");
         this.ChannelCommandColours = this.Plugin.Interface.GetIpcProvider<Dictionary<string, uint>, Dictionary<string, uint>>("ExtraChat.ChannelCommandColours");
+        this.ChannelNames = this.Plugin.Interface.GetIpcProvider<Dictionary<Guid, string>, Dictionary<Guid, string>>("ExtraChat.ChannelNames");
 
         this.ChannelCommandColours.RegisterFunc(_ => this.GetChannelColours());
+        this.ChannelNames.RegisterFunc(_ => this.GetChannelNames());
     }
 
     public void Dispose() {
+        this.ChannelNames.UnregisterFunc();
         this.ChannelCommandColours.UnregisterFunc();
     }
 
@@ -41,10 +45,23 @@ internal class Ipc : IDisposable {
         return dict;
     }
 
+    private Dictionary<Guid, string> GetChannelNames() {
+        return this.Plugin.Client.Channels
+            .Values
+            .ToDictionary(
+                channel => channel.Id,
+                channel => this.Plugin.ConfigInfo.Channels.TryGetValue(channel.Id, out var info) ? info.Name : "???"
+            );
+    }
+
     internal void BroadcastChannelCommandColours() {
         this.ChannelCommandColours.SendMessage(this.GetChannelColours());
     }
 
+    internal void BroadcastChannelNames() {
+        this.ChannelNames.SendMessage(this.GetChannelNames());
+    }
+
     internal void BroadcastOverride() {
         var over = this.Plugin.GameFunctions.OverrideChannel;
         if (over == Guid.Empty) {
diff --git a/client/ExtraChat/Util/PayloadUtil.cs b/client/ExtraChat/Util/PayloadUtil.cs
new file mode 100644
index 0000000..11c6cd6
--- /dev/null
+++ b/client/ExtraChat/Util/PayloadUtil.cs
@@ -0,0 +1,22 @@
+using Dalamud.Game.Text.SeStringHandling.Payloads;
+
+namespace ExtraChat.Util;
+
+internal static class PayloadUtil {
+    internal static RawPayload CreateTagPayload(Guid id) {
+        var bytes = new List<byte> {
+            2, // start byte
+            0x27, // interactable
+            3 + 16, // chunk length (3 bytes plus data length)
+            0x20, // embedded info type (custom)
+        };
+
+        // now add data, we always know it's 16 bytes
+        bytes.AddRange(id.ToByteArray());
+
+        // end byte
+        bytes.Add(3);
+
+        return new RawPayload(bytes.ToArray());
+    }
+}