proposal-system/web/src/domain/__tests__/lineItems.use-cases.test.tsx

// Line-item persistence flows through useSaveProposalWorkspace (admin
// domain) — the live workspace save path: update proposal, bulk-replace line
// items, broad-invalidate every cached view. The domain api modules are
// mocked — no axios traffic.
import { describe, it, expect, vi, beforeEach } from 'vitest';
import { renderHook, waitFor } from '@testing-library/react';
import { toast } from 'react-toastify';
import { createQueryHarness } from './hookTestUtils';
import { lineItemsKeys } from '../lineItems/use-cases';
import { useSaveProposalWorkspace } from '../admin/use-cases';
import { proposalsKeys } from '../proposals/use-cases';
import { adminApi } from '../admin/api';
import { lineItemsApi } from '../lineItems/api';
import type { UpdateLineItemEntry } from '../lineItems/types';

vi.mock('../admin/api', () => ({
  adminApi: {
    getDashboard: vi.fn(),
    updateProposal: vi.fn(),
    approveProposal: vi.fn(),
    sendProposal: vi.fn(),
    reviseProposal: vi.fn(),
    returnToReview: vi.fn(),
    generateSuggestions: vi.fn(),
    getSimilar: vi.fn(),
    getHistory: vi.fn(),
    getAudit: vi.fn(),
    getPdf: vi.fn(),
  },
}));

vi.mock('../lineItems/api', () => ({
  lineItemsApi: {
    getAll: vi.fn(),
    create: vi.fn(),
    bulkUpdate: vi.fn(),
    delete: vi.fn(),
  },
}));

vi.mock('react-toastify', () => ({
  toast: { success: vi.fn(), error: vi.fn(), warning: vi.fn(), info: vi.fn() },
}));

const PROPOSAL_ID = 'p-42';
const entries = [
  { description: 'Labor', quantity: 2, unitPrice: 150 },
] as unknown as UpdateLineItemEntry[];

beforeEach(() => {
  vi.clearAllMocks();
});

describe('lineItemsKeys', () => {
  it('scopes the by-proposal key under ["lineItems"]', () => {
    expect(lineItemsKeys.all).toEqual(['lineItems']);
    expect(lineItemsKeys.byProposal(PROPOSAL_ID)).toEqual(['lineItems', PROPOSAL_ID]);
  });
});

describe('useSaveProposalWorkspace', () => {
  it('persists scope + entries and invalidates line items, detail, and list/stats views', async () => {
    vi.mocked(adminApi.updateProposal).mockResolvedValue(undefined);
    vi.mocked(lineItemsApi.bulkUpdate).mockResolvedValue([]);
    const { queryClient, wrapper } = createQueryHarness();
    const invalidateSpy = vi.spyOn(queryClient, 'invalidateQueries');

    const { result } = renderHook(() => useSaveProposalWorkspace(PROPOSAL_ID), { wrapper });
    result.current.mutate({ refinedScope: 'refined', lineItems: entries });

    await waitFor(() => expect(result.current.isSuccess).toBe(true));
    expect(adminApi.updateProposal).toHaveBeenCalledWith(PROPOSAL_ID, { refinedScope: 'refined' });
    expect(lineItemsApi.bulkUpdate).toHaveBeenCalledWith(PROPOSAL_ID, entries);
    expect(invalidateSpy).toHaveBeenCalledWith({
      queryKey: lineItemsKeys.byProposal(PROPOSAL_ID),
    });
    // Totals live on the proposal detail AND the cached queue/list views.
    expect(invalidateSpy).toHaveBeenCalledWith({
      queryKey: proposalsKeys.detail(PROPOSAL_ID),
    });
    expect(invalidateSpy).toHaveBeenCalledWith({
      queryKey: proposalsKeys.lists(),
    });
    expect(toast.success).toHaveBeenCalledWith('Changes saved');
  });

  it('toasts a save failure and skips invalidation', async () => {
    vi.mocked(adminApi.updateProposal).mockRejectedValue(new Error('409 conflict'));
    const { queryClient, wrapper } = createQueryHarness();
    const invalidateSpy = vi.spyOn(queryClient, 'invalidateQueries');

    const { result } = renderHook(() => useSaveProposalWorkspace(PROPOSAL_ID), { wrapper });
    result.current.mutate({ refinedScope: 'refined', lineItems: entries });

    await waitFor(() => expect(result.current.isError).toBe(true));
    expect(toast.error).toHaveBeenCalledWith('Save failed: 409 conflict');
    expect(lineItemsApi.bulkUpdate).not.toHaveBeenCalled();
    expect(invalidateSpy).not.toHaveBeenCalled();
  });
});