From abbde31eac6b670ad9bc7971083541eca26d8bad Mon Sep 17 00:00:00 2001
From: jellymellio <jargon_broadside594@slmail.me>
Date: Thu, 18 Dec 2025 23:39:56 +0100
Subject: [PATCH] fix: diff events for sidebar updates and refresh messages on
 session compaction

---
 .../opencode/src/cli/cmd/tui/context/sync.tsx    | 16 ++++++++++++++++
 packages/opencode/src/session/revert.ts          | 14 +++++++++++++-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/packages/opencode/src/cli/cmd/tui/context/sync.tsx b/packages/opencode/src/cli/cmd/tui/context/sync.tsx
index f74f787db..1f9f7107f 100644
--- a/packages/opencode/src/cli/cmd/tui/context/sync.tsx
+++ b/packages/opencode/src/cli/cmd/tui/context/sync.tsx
@@ -250,6 +250,22 @@ export const { use: useSync, provider: SyncProvider } = createSimpleContext({
           setStore("vcs", { branch: event.properties.branch })
           break
         }
+
+        case "session.compacted": {
+          // Refresh messages after compaction to update sidebar context
+          sdk.client.session.messages({ sessionID: event.properties.sessionID, limit: 100 }).then((res) => {
+            if (!res.data) return
+            setStore(
+              produce((draft) => {
+                draft.message[event.properties.sessionID] = res.data!.map((x) => x.info)
+                for (const message of res.data!) {
+                  draft.part[message.info.id] = message.parts
+                }
+              }),
+            )
+          })
+          break
+        }
       }
     })
 
diff --git a/packages/opencode/src/session/revert.ts b/packages/opencode/src/session/revert.ts
index 35c7b9a60..8b652690d 100644
--- a/packages/opencode/src/session/revert.ts
+++ b/packages/opencode/src/session/revert.ts
@@ -57,9 +57,15 @@ export namespace SessionRevert {
       revert.snapshot = session.revert?.snapshot ?? (await Snapshot.track())
       await Snapshot.revert(patches)
       if (revert.snapshot) revert.diff = await Snapshot.diff(revert.snapshot)
-      return Session.update(input.sessionID, (draft) => {
+      const result = await Session.update(input.sessionID, (draft) => {
         draft.revert = revert
       })
+      // Emit session.diff event to update sidebar's Modified Files list
+      Bus.publish(Session.Event.Diff, {
+        sessionID: input.sessionID,
+        diff: [],
+      })
+      return result
     }
     return session
   }
@@ -73,6 +79,12 @@ export namespace SessionRevert {
     const next = await Session.update(input.sessionID, (draft) => {
       draft.revert = undefined
     })
+    // Emit session.diff event to refresh sidebar's Modified Files list
+    const diff = await Session.diff(input.sessionID)
+    Bus.publish(Session.Event.Diff, {
+      sessionID: input.sessionID,
+      diff,
+    })
     return next
   }