From a9a2236cc14a3b14faa819cb211a91f247cdf25f Mon Sep 17 00:00:00 2001
From: Adib Hanna <adibhanna@gmail.com>
Date: Fri, 8 May 2026 11:24:59 -0500
Subject: [PATCH] fix: refresh tasks when reopening kanban

---
 packages/app-core/src/store.test.ts | 109 ++++++++++++++++++++++++++++
 packages/app-core/src/store.ts      |  15 +++-
 2 files changed, 120 insertions(+), 4 deletions(-)
 create mode 100644 packages/app-core/src/store.test.ts

diff --git a/packages/app-core/src/store.test.ts b/packages/app-core/src/store.test.ts
new file mode 100644
index 00000000..e3f9d222
--- /dev/null
+++ b/packages/app-core/src/store.test.ts
@@ -0,0 +1,109 @@
+// @vitest-environment jsdom
+
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { TASKS_TAB_PATH, type VaultTask } from '@shared/tasks'
+
+function makeTask(content: string, taskIndex = 0): VaultTask {
+  return {
+    id: `inbox/Note.md#${taskIndex}`,
+    sourcePath: 'inbox/Note.md',
+    noteTitle: 'Note',
+    noteFolder: 'inbox',
+    lineNumber: taskIndex,
+    taskIndex,
+    rawText: `- [ ] ${content}`,
+    content,
+    checked: false,
+    waiting: false,
+    tags: []
+  }
+}
+
+function makeNote(body: string) {
+  return {
+    path: 'inbox/Note.md',
+    title: 'Note',
+    folder: 'inbox' as const,
+    siblingOrder: 0,
+    createdAt: 0,
+    updatedAt: 1,
+    size: body.length,
+    tags: [],
+    wikilinks: [],
+    hasAttachments: false,
+    excerpt: body,
+    body
+  }
+}
+
+function installZen(overrides: Record<string, unknown> = {}): void {
+  Object.defineProperty(window, 'zen', {
+    configurable: true,
+    value: {
+      scanTasks: vi.fn().mockResolvedValue([]),
+      scanTasksForPath: vi.fn().mockResolvedValue([]),
+      listNotes: vi.fn().mockResolvedValue([makeNote('- [ ] old task')]),
+      listFolders: vi.fn().mockResolvedValue([]),
+      listAssets: vi.fn().mockResolvedValue([]),
+      hasAssetsDir: vi.fn().mockResolvedValue(false),
+      readNote: vi.fn().mockResolvedValue(makeNote('- [ ] old task')),
+      ...overrides
+    }
+  })
+}
+
+async function loadStore() {
+  vi.resetModules()
+  localStorage.clear()
+  return import('./store')
+}
+
+async function flushAsyncWork(): Promise<void> {
+  await new Promise((resolve) => window.setTimeout(resolve, 0))
+}
+
+beforeEach(() => {
+  vi.restoreAllMocks()
+})
+
+describe('tasks cache freshness', () => {
+  it('refreshes tasks when focusing an existing Tasks tab', async () => {
+    const freshTasks = [makeTask('new task')]
+    const scanTasks = vi.fn().mockResolvedValue(freshTasks)
+    installZen({ scanTasks })
+
+    const { useStore } = await loadStore()
+    const paneId = useStore.getState().activePaneId
+    await useStore.getState().openNoteInPane(paneId, TASKS_TAB_PATH)
+    await useStore.getState().openNoteInPane(paneId, 'inbox/Note.md')
+    useStore.setState({ vaultTasks: [makeTask('stale task')] })
+
+    await useStore.getState().focusTabInPane(paneId, TASKS_TAB_PATH)
+    await flushAsyncWork()
+
+    expect(scanTasks).toHaveBeenCalledTimes(1)
+    expect(useStore.getState().vaultTasks).toEqual(freshTasks)
+  })
+
+  it('rescans changed notes while the Tasks tab is open but inactive', async () => {
+    const freshTasks = [makeTask('new task')]
+    const scanTasksForPath = vi.fn().mockResolvedValue(freshTasks)
+    installZen({ scanTasksForPath })
+
+    const { useStore } = await loadStore()
+    const paneId = useStore.getState().activePaneId
+    await useStore.getState().openNoteInPane(paneId, TASKS_TAB_PATH)
+    await useStore.getState().openNoteInPane(paneId, 'inbox/Note.md')
+    useStore.setState({ vaultTasks: [makeTask('stale task')] })
+
+    await useStore.getState().applyChange({
+      kind: 'change',
+      path: 'inbox/Note.md',
+      folder: 'inbox',
+      scope: 'content'
+    })
+
+    expect(scanTasksForPath).toHaveBeenCalledWith('inbox/Note.md')
+    expect(useStore.getState().vaultTasks).toEqual(freshTasks)
+  })
+})
diff --git a/packages/app-core/src/store.ts b/packages/app-core/src/store.ts
index d9fc2b29..62e7ed0d 100644
--- a/packages/app-core/src/store.ts
+++ b/packages/app-core/src/store.ts
@@ -1149,6 +1149,10 @@ export function isTasksViewActive(state: {
   return leaf?.activeTab === TASKS_TAB_PATH
 }
 
+function hasTasksViewOpen(state: { paneLayout: PaneLayout }): boolean {
+  return allLeaves(state.paneLayout).some((leaf) => leaf.tabs.includes(TASKS_TAB_PATH))
+}
+
 /** True when the active pane's active tab is the vault-wide Tags view. */
 export function isTagsViewActive(state: {
   paneLayout: PaneLayout
@@ -2641,15 +2645,17 @@ export const useStore = create<Store>((set, get) => {
 
     if (ev.scope === 'vault-settings') return
 
-    // Keep the Tasks view in sync as files change externally or via our own
-    // writes — cheap per-path rescans instead of walking the whole vault.
-    if (isTasksViewActive(state)) {
+    // Keep an open Tasks tab in sync as files change externally or via our own
+    // writes — cheap per-path rescans instead of walking the whole vault. This
+    // also covers inactive Tasks tabs so returning to Kanban doesn't show stale
+    // cards from the last time the tab was focused.
+    if (hasTasksViewOpen(state)) {
       if (ev.kind === 'unlink') {
         set((s) => ({
           vaultTasks: s.vaultTasks.filter((t) => t.sourcePath !== ev.path)
         }))
       } else {
-        void get().rescanTasksForPath(ev.path)
+        await get().rescanTasksForPath(ev.path)
       }
     }
 
@@ -3516,6 +3522,7 @@ export const useStore = create<Store>((set, get) => {
           ...activeFieldsFrom(nextLayout, paneId, cur.noteContents, cur.noteDirty)
         }
       })
+      if (!get().tasksLoading) void get().refreshTasks()
       return
     }