perf(ui): isolate sidebar session selection

2026-08-26 00:42:36 +08:00
parent 77da97953f
commit ed37d8e249
8 changed files with 351 additions and 159 deletions
@@ -0,0 +1,91 @@
+import type { PermissionRuleset, Session, SnapshotFileDiff } from "@opencode-ai/sdk/v2"
+import { Binary } from "./binary"
+
+function areMetadataEqual(left: Session["metadata"], right: Session["metadata"]): boolean {
+  return JSON.stringify(left ?? null) === JSON.stringify(right ?? null)
+}
+
+function optionalEqual<T>(
+  left: T | undefined,
+  right: T | undefined,
+  equal: (left: T, right: T) => boolean,
+): boolean {
+  return left === right || (left !== undefined && right !== undefined && equal(left, right))
+}
+
+const diffsEqual = (left: SnapshotFileDiff[], right: SnapshotFileDiff[]) => (
+  left.length === right.length
+  && left.every((item, index) => {
+    const candidate = right[index]
+    return item.file === candidate.file
+      && item.patch === candidate.patch
+      && item.additions === candidate.additions
+      && item.deletions === candidate.deletions
+      && item.status === candidate.status
+  })
+)
+
+const permissionsEqual = (left: PermissionRuleset, right: PermissionRuleset) => (
+  left.length === right.length
+  && left.every((item, index) => {
+    const candidate = right[index]
+    return item.permission === candidate.permission
+      && item.pattern === candidate.pattern
+      && item.action === candidate.action
+  })
+)
+
+function areSessionsEqual(left: Session, right: Session): boolean {
+  return left.id === right.id
+    && left.slug === right.slug
+    && left.projectID === right.projectID
+    && left.workspaceID === right.workspaceID
+    && left.directory === right.directory
+    && left.path === right.path
+    && left.parentID === right.parentID
+    && left.cost === right.cost
+    && left.title === right.title
+    && left.agent === right.agent
+    && left.version === right.version
+    && areMetadataEqual(left.metadata, right.metadata)
+    && optionalEqual(left.summary, right.summary, (a, b) => (
+      a.additions === b.additions
+      && a.deletions === b.deletions
+      && a.files === b.files
+      && optionalEqual(a.diffs, b.diffs, diffsEqual)
+    ))
+    && optionalEqual(left.tokens, right.tokens, (a, b) => (
+      a.input === b.input
+      && a.output === b.output
+      && a.reasoning === b.reasoning
+      && a.cache.read === b.cache.read
+      && a.cache.write === b.cache.write
+    ))
+    && optionalEqual(left.share, right.share, (a, b) => a.url === b.url)
+    && optionalEqual(left.model, right.model, (a, b) => (
+      a.id === b.id
+      && a.providerID === b.providerID
+      && a.variant === b.variant
+    ))
+    && left.time.created === right.time.created
+    && left.time.updated === right.time.updated
+    && left.time.compacting === right.time.compacting
+    && left.time.archived === right.time.archived
+    && optionalEqual(left.permission, right.permission, permissionsEqual)
+    && optionalEqual(left.revert, right.revert, (a, b) => (
+      a.messageID === b.messageID
+      && a.partID === b.partID
+      && a.snapshot === b.snapshot
+      && a.diff === b.diff
+    ))
+}
+
+export function upsertSessionRecord(current: Session[], incoming: Session): Session[] {
+  const result = Binary.search(current, incoming.id, (session) => session.id)
+  if (!result.found) return [...current.slice(0, result.index), incoming, ...current.slice(result.index)]
+  // Equivalent authoritative detail must retain sidebar session-list references.
+  if (areSessionsEqual(current[result.index], incoming)) return current
+  const next = [...current]
+  next[result.index] = incoming
+  return next
+}