Feed filter implementation

vue/src/components/__tests__/AppNav.spec.js

@@ -25,8 +25,13 @@ describe('AppNav', () => {
     localStorage.setItem('user-id', '7')
     vi.clearAllMocks()
 
-    const { feeds, showMessage, message, showModal, viewMode, currentIndex, layout } = useFeeds()
+    const { feeds, allItems, feedFilter, lastProgrammaticScroll, showMessage, message, showModal, viewMode, currentIndex, layout } = useFeeds()
     feeds.value = []
+    allItems.value = []
+    feedFilter.value = null
+    // Module-singleton state: a prior test may have stamped this via a mocked
+    // performance.now(); reset it so the scroll-driven reveal gate starts clean.
+    lastProgrammaticScroll.value = 0
     showMessage.value = false
     message.value = ''
     showModal.value = false
@@ -84,6 +89,17 @@ describe('AppNav', () => {
     expect(wrapper.find('.app-nav__menu').exists()).toBe(false)
   })
 
+  it('closes the menu on a click outside of it', async () => {
+    const wrapper = await mountWithMenuOpen()
+    expect(wrapper.find('.app-nav__menu').exists()).toBe(true)
+
+    // A click anywhere outside the menu strip (e.g. on page content) closes it.
+    document.body.dispatchEvent(new Event('click', { bubbles: true }))
+    await nextTick()
+
+    expect(wrapper.find('.app-nav__menu').exists()).toBe(false)
+  })
+
   it('clears stored credentials and redirects to login on logout', async () => {
     const wrapper = await mountWithMenuOpen()
 
@@ -179,8 +195,10 @@ describe('AppNav', () => {
   })
 
   it('shows the unread count in the title when there are articles', async () => {
-    const { feeds } = useFeeds()
-    feeds.value = [
+    // The badge is the global unread total, sourced from the master list
+    // (allItems) so it stays correct regardless of any active feed filter.
+    const { allItems } = useFeeds()
+    allItems.value = [
       { id: 1, title: 'Article one', content: '', url: 'https://example.test/1', timestamp: '2026-01-01' },
       { id: 2, title: 'Article two', content: '', url: 'https://example.test/2', timestamp: '2026-01-02' },
     ]
@@ -192,8 +210,8 @@ describe('AppNav', () => {
   })
 
   it('excludes already-read articles from the counter while in article view', async () => {
-    const { feeds } = useFeeds()
-    feeds.value = [
+    const { allItems } = useFeeds()
+    allItems.value = [
       { id: 1, title: 'Article one', read: true,  content: '', url: 'https://example.test/1', timestamp: '2026-01-01' },
       { id: 2, title: 'Article two', read: false, content: '', url: 'https://example.test/2', timestamp: '2026-01-02' },
     ]
@@ -211,6 +229,74 @@ describe('AppNav', () => {
     expect(wrapper.find('.app-nav__unread').exists()).toBe(false)
   })
 
+  it('renders a feed filter with an "All feeds" option plus one per distinct feed', async () => {
+    const { allItems } = useFeeds()
+    allItems.value = [
+      { id: 1, feedTitle: 'Feed B', title: 'a', url: 'https://example.test/1', timestamp: '2026-01-02' },
+      { id: 2, feedTitle: 'Feed A', title: 'b', url: 'https://example.test/2', timestamp: '2026-01-01' },
+      { id: 3, feedTitle: 'Feed A', title: 'c', url: 'https://example.test/3', timestamp: '2026-01-03' },
+    ]
+
+    const wrapper = mountNav()
+    await flushPromises()
+
+    const options = wrapper.find('.app-nav__filter').findAll('option').map(o => o.text())
+    // "All feeds" first, then distinct titles sorted alphabetically.
+    expect(options).toEqual(['All feeds', 'Feed A', 'Feed B'])
+  })
+
+  it('does not render the feed filter when there are no feeds', async () => {
+    const wrapper = mountNav()
+    await flushPromises()
+
+    expect(wrapper.find('.app-nav__filter').exists()).toBe(false)
+  })
+
+  it('applies the selected feed to the displayed list, and "All feeds" restores it', async () => {
+    const { allItems, feeds, feedFilter } = useFeeds()
+    allItems.value = [
+      { id: 1, feedTitle: 'Feed A', title: 'a', url: 'https://example.test/1', timestamp: '2026-01-01' },
+      { id: 2, feedTitle: 'Feed B', title: 'b', url: 'https://example.test/2', timestamp: '2026-01-02' },
+    ]
+
+    const wrapper = mountNav()
+    await flushPromises()
+
+    const select = wrapper.find('.app-nav__filter')
+    await select.setValue('Feed A')
+    await flushPromises()
+
+    expect(feedFilter.value).toBe('Feed A')
+    expect(feeds.value.map(f => f.id)).toEqual([1])
+
+    await select.setValue('')
+    await flushPromises()
+
+    expect(feedFilter.value).toBeNull()
+    expect(feeds.value.map(f => f.id)).toEqual([1, 2])
+  })
+
+  it('shows the selected feed\'s unread count in the title when a filter is active', async () => {
+    const { allItems } = useFeeds()
+    allItems.value = [
+      { id: 1, feedTitle: 'Feed A', title: 'a', url: 'https://example.test/1', timestamp: '2026-01-01' },
+      { id: 2, feedTitle: 'Feed A', title: 'b', url: 'https://example.test/2', timestamp: '2026-01-02' },
+      { id: 3, feedTitle: 'Feed B', title: 'c', url: 'https://example.test/3', timestamp: '2026-01-03' },
+    ]
+
+    const wrapper = mountNav()
+    await flushPromises()
+
+    // No filter → global total (3).
+    expect(wrapper.find('.app-nav__title').text()).toContain('(3)')
+
+    await wrapper.find('.app-nav__filter').setValue('Feed A')
+    await flushPromises()
+
+    // Filtered → unread in Feed A only (2).
+    expect(wrapper.find('.app-nav__title').text()).toContain('(2)')
+  })
+
   describe('scroll-driven show/hide', () => {
     // The scroll handler is rAF-throttled; run rAF synchronously so a single
     // dispatched scroll event resolves before we assert. Per the CLAUDE.md