feat: add announcements system and improve user dashboard layout

actions/__tests__/announcements.test.ts

@@ -0,0 +1,377 @@
+/**
+ * Tests for actions/announcements.ts - announcement CRUD operations
+ *
+ * These tests cover:
+ * - Getting active announcements (filters expired/inactive)
+ * - Admin-only operations (create, update, delete, setActive)
+ * - Input validation with Zod
+ * - Prisma error handling (P2025 not found)
+ */
+
+import {
+  getActiveAnnouncements,
+  getAllAnnouncements,
+  createAnnouncement,
+  updateAnnouncement,
+  deleteAnnouncement,
+  setAnnouncementActive,
+} from '@/actions/announcements'
+import { prisma } from '@/lib/prisma'
+import { getServerSession } from 'next-auth'
+import { revalidatePath } from 'next/cache'
+
+// Mock dependencies
+jest.mock('@/lib/prisma', () => ({
+  prisma: {
+    announcement: {
+      findMany: jest.fn(),
+      findUnique: jest.fn(),
+      create: jest.fn(),
+      update: jest.fn(),
+      delete: jest.fn(),
+    },
+  },
+}))
+
+jest.mock('next-auth', () => ({
+  getServerSession: jest.fn(),
+}))
+
+jest.mock('next/cache', () => ({
+  revalidatePath: jest.fn(),
+}))
+
+jest.mock('@/lib/auth', () => ({
+  authOptions: {},
+}))
+
+const mockPrisma = prisma as jest.Mocked<typeof prisma>
+const mockGetServerSession = getServerSession as jest.MockedFunction<typeof getServerSession>
+const mockRevalidatePath = revalidatePath as jest.MockedFunction<typeof revalidatePath>
+
+describe('announcements actions', () => {
+  const mockAdminSession = {
+    user: { id: 'admin-123', name: 'Admin', email: '[email protected]', isAdmin: true },
+    expires: new Date(Date.now() + 86400000).toISOString(),
+  }
+
+  const mockNonAdminSession = {
+    user: { id: 'user-123', name: 'User', email: '[email protected]', isAdmin: false },
+    expires: new Date(Date.now() + 86400000).toISOString(),
+  }
+
+  const mockAnnouncement = {
+    id: 'ann-123',
+    title: 'Test Announcement',
+    content: 'This is test content',
+    priority: 10,
+    isActive: true,
+    createdAt: new Date('2024-01-01'),
+    expiresAt: new Date('2025-12-31'),
+    createdBy: 'admin-123',
+    updatedAt: new Date('2024-01-01'),
+  }
+
+  beforeEach(() => {
+    jest.clearAllMocks()
+  })
+
+  describe('getActiveAnnouncements', () => {
+    it('should return active, non-expired announcements', async () => {
+      mockPrisma.announcement.findMany.mockResolvedValue([mockAnnouncement])
+
+      const result = await getActiveAnnouncements()
+
+      expect(result).toHaveLength(1)
+      expect(result[0].id).toBe('ann-123')
+      expect(result[0].title).toBe('Test Announcement')
+      expect(mockPrisma.announcement.findMany).toHaveBeenCalledWith(
+        expect.objectContaining({
+          where: expect.objectContaining({
+            isActive: true,
+          }),
+        })
+      )
+    })
+
+    it('should return empty array on database error', async () => {
+      mockPrisma.announcement.findMany.mockRejectedValue(new Error('Database error'))
+
+      const result = await getActiveAnnouncements()
+
+      expect(result).toEqual([])
+    })
+
+    it('should convert dates to ISO strings', async () => {
+      mockPrisma.announcement.findMany.mockResolvedValue([mockAnnouncement])
+
+      const result = await getActiveAnnouncements()
+
+      expect(result[0].createdAt).toBe('2024-01-01T00:00:00.000Z')
+      expect(result[0].expiresAt).toBe('2025-12-31T00:00:00.000Z')
+    })
+  })
+
+  describe('getAllAnnouncements', () => {
+    it('should return all announcements for admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.findMany.mockResolvedValue([mockAnnouncement])
+
+      const result = await getAllAnnouncements()
+
+      expect(result).toHaveLength(1)
+      expect(result[0].id).toBe('ann-123')
+    })
+
+    it('should return empty array for non-admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockNonAdminSession)
+
+      const result = await getAllAnnouncements()
+
+      expect(result).toEqual([])
+      expect(mockPrisma.announcement.findMany).not.toHaveBeenCalled()
+    })
+
+    it('should return empty array when not authenticated', async () => {
+      mockGetServerSession.mockResolvedValue(null)
+
+      const result = await getAllAnnouncements()
+
+      expect(result).toEqual([])
+    })
+  })
+
+  describe('createAnnouncement', () => {
+    it('should create announcement for admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.create.mockResolvedValue(mockAnnouncement)
+
+      const result = await createAnnouncement({
+        title: 'Test Announcement',
+        content: 'This is test content',
+        priority: 10,
+        isActive: true,
+        expiresAt: '2025-12-31T00:00:00.000Z',
+      })
+
+      expect(result.success).toBe(true)
+      expect(result.data?.title).toBe('Test Announcement')
+      expect(mockRevalidatePath).toHaveBeenCalledWith('/')
+      expect(mockRevalidatePath).toHaveBeenCalledWith('/admin/announcements')
+    })
+
+    it('should reject for non-admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockNonAdminSession)
+
+      const result = await createAnnouncement({
+        title: 'Test',
+        content: 'Content',
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Unauthorized')
+    })
+
+    it('should validate title is required', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+
+      const result = await createAnnouncement({
+        title: '',
+        content: 'Content',
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Title is required')
+    })
+
+    it('should validate content is required', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+
+      const result = await createAnnouncement({
+        title: 'Title',
+        content: '',
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Content is required')
+    })
+
+    it('should validate title max length', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+
+      const result = await createAnnouncement({
+        title: 'a'.repeat(201),
+        content: 'Content',
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Title too long')
+    })
+
+    it('should validate invalid date format', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+
+      const result = await createAnnouncement({
+        title: 'Title',
+        content: 'Content',
+        expiresAt: 'invalid-date',
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Invalid date format')
+    })
+
+    it('should allow null expiresAt', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.create.mockResolvedValue({
+        ...mockAnnouncement,
+        expiresAt: null,
+      })
+
+      const result = await createAnnouncement({
+        title: 'Test',
+        content: 'Content',
+        expiresAt: null,
+      })
+
+      expect(result.success).toBe(true)
+      expect(result.data?.expiresAt).toBeNull()
+    })
+  })
+
+  describe('updateAnnouncement', () => {
+    it('should update announcement for admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.update.mockResolvedValue(mockAnnouncement)
+
+      const result = await updateAnnouncement({
+        id: 'ann-123',
+        title: 'Updated Title',
+        content: 'Updated content',
+        priority: 5,
+        isActive: true,
+        expiresAt: null,
+      })
+
+      expect(result.success).toBe(true)
+      expect(mockRevalidatePath).toHaveBeenCalledWith('/')
+    })
+
+    it('should return error for non-existent announcement', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.update.mockRejectedValue({ code: 'P2025' })
+
+      const result = await updateAnnouncement({
+        id: 'non-existent',
+        title: 'Title',
+        content: 'Content',
+        priority: 0,
+        isActive: true,
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Announcement not found')
+    })
+
+    it('should reject for non-admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockNonAdminSession)
+
+      const result = await updateAnnouncement({
+        id: 'ann-123',
+        title: 'Title',
+        content: 'Content',
+        priority: 0,
+        isActive: true,
+      })
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Unauthorized')
+    })
+  })
+
+  describe('deleteAnnouncement', () => {
+    it('should delete announcement for admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.delete.mockResolvedValue(mockAnnouncement)
+
+      const result = await deleteAnnouncement('ann-123')
+
+      expect(result.success).toBe(true)
+      expect(mockRevalidatePath).toHaveBeenCalledWith('/')
+      expect(mockRevalidatePath).toHaveBeenCalledWith('/admin/announcements')
+    })
+
+    it('should return error for non-existent announcement', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.delete.mockRejectedValue({ code: 'P2025' })
+
+      const result = await deleteAnnouncement('non-existent')
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Announcement not found')
+    })
+
+    it('should reject for non-admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockNonAdminSession)
+
+      const result = await deleteAnnouncement('ann-123')
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Unauthorized')
+    })
+  })
+
+  describe('setAnnouncementActive', () => {
+    it('should set announcement to active', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.update.mockResolvedValue({
+        ...mockAnnouncement,
+        isActive: true,
+      })
+
+      const result = await setAnnouncementActive('ann-123', true)
+
+      expect(result.success).toBe(true)
+      expect(mockPrisma.announcement.update).toHaveBeenCalledWith({
+        where: { id: 'ann-123' },
+        data: { isActive: true },
+      })
+      expect(mockRevalidatePath).toHaveBeenCalledWith('/')
+    })
+
+    it('should set announcement to inactive', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.update.mockResolvedValue({
+        ...mockAnnouncement,
+        isActive: false,
+      })
+
+      const result = await setAnnouncementActive('ann-123', false)
+
+      expect(result.success).toBe(true)
+      expect(mockPrisma.announcement.update).toHaveBeenCalledWith({
+        where: { id: 'ann-123' },
+        data: { isActive: false },
+      })
+    })
+
+    it('should return error for non-existent announcement', async () => {
+      mockGetServerSession.mockResolvedValue(mockAdminSession)
+      mockPrisma.announcement.update.mockRejectedValue({ code: 'P2025' })
+
+      const result = await setAnnouncementActive('non-existent', true)
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Announcement not found')
+    })
+
+    it('should reject for non-admin', async () => {
+      mockGetServerSession.mockResolvedValue(mockNonAdminSession)
+
+      const result = await setAnnouncementActive('ann-123', true)
+
+      expect(result.success).toBe(false)
+      expect(result.error).toBe('Unauthorized')
+    })
+  })
+})