feat: recent activity card on Home and Retention card on Settings

web/src/lib/__tests__/activityRetention.spec.ts

@@ -0,0 +1,88 @@
+import { afterEach, beforeEach, describe, expect, it } from 'vitest'
+import { initializeLocale, setLocale } from '@/i18n'
+import type { WorkspaceSettings } from '@/composables/useSettings'
+import { recentWhenLabel } from '../activityTime'
+import {
+	helperCopy,
+	isShorter,
+	lastCleanupLine,
+	nextCleanupLine,
+	shorteningDescription,
+} from '../activityRetention'
+
+const NOW = new Date(2026, 9, 6, 15, 0)
+
+function at(day: number, hour: number, minute: number) {
+	return new Date(2026, 9, day, hour, minute).toISOString()
+}
+
+function settings(overrides: Partial<WorkspaceSettings> = {}): WorkspaceSettings {
+	return {
+		version: 'v2.2.0-beta',
+		activity_retention_days: 90,
+		activity_last_cleanup_at: at(6, 3, 0),
+		activity_last_cleanup_removed: 142,
+		activity_next_cleanup_at: at(7, 3, 0),
+		...overrides,
+	}
+}
+
+beforeEach(() => {
+	localStorage.clear()
+	initializeLocale()
+})
+
+afterEach(() => {
+	localStorage.clear()
+	initializeLocale()
+})
+
+describe('recentWhenLabel follows the day', () => {
+	it.each([
+		[at(6, 14, 58), '2 min ago'],
+		[at(6, 12, 0), '3 h ago'],
+		[at(5, 14, 20), 'Yesterday, 14:20'],
+		[at(3, 14, 20), '3 Oct 2026, 14:20'],
+	])('%s reads %s', (iso, label) => {
+		expect(recentWhenLabel(iso, NOW)).toBe(label)
+	})
+
+	it('reads French labels in French', () => {
+		setLocale('fr')
+
+		expect(recentWhenLabel(at(5, 14, 20), NOW)).toBe('Hier, 14:20')
+		expect(recentWhenLabel(at(3, 14, 20), NOW)).toBe('3 oct. 2026, 14:20')
+	})
+})
+
+describe('retention periods', () => {
+	it('ranks 30 < 90 < 365 < Forever', () => {
+		expect(isShorter(30, 90)).toBe(true)
+		expect(isShorter(365, 0)).toBe(true)
+		expect(isShorter(0, 365)).toBe(false)
+		expect(isShorter(90, 90)).toBe(false)
+	})
+})
+
+describe('retention lines', () => {
+	it('reads the last cleanup with its count', () => {
+		expect(lastCleanupLine(settings())).toBe('6 Oct 2026, 03:00 · 142 events removed')
+		expect(lastCleanupLine(settings({ activity_last_cleanup_removed: 1 }))).toBe(
+			'6 Oct 2026, 03:00 · 1 event removed',
+		)
+	})
+
+	it('reads Never before the first cleanup and Not scheduled for Forever', () => {
+		expect(lastCleanupLine(settings({ activity_last_cleanup_at: null }))).toBe('Never')
+		expect(nextCleanupLine(settings({ activity_next_cleanup_at: null }))).toBe('Not scheduled')
+		expect(nextCleanupLine(settings())).toBe('7 Oct 2026, 03:00')
+	})
+
+	it('words the helper and the warning', () => {
+		expect(helperCopy(90)).toBe('Older events are removed automatically.')
+		expect(helperCopy(0)).toBe('Nothing is removed automatically. The log grows over time.')
+		expect(shorteningDescription(settings())).toBe(
+			"This happens at the next cleanup on 7 Oct 2026, 03:00. It can't be undone.",
+		)
+	})
+})