const erp = require('../../../../src/services/integrations/erp');

describe('ERP Sync Services', () => {
  const originalFetch = global.fetch;

  afterEach(() => {
    global.fetch = originalFetch;
    vi.restoreAllMocks();
  });

  it('builds reimbursement journal payload via compat helper', () => {
    const payload = erp.buildErpPayload({
      reimbursement: {
        id: 'r1',
        form_number: 'F001',
        owner_id: 'owner-1',
        submitter_id: 'submitter-1',
        department_id: 'dept-1',
        total_amount: { toString: () => '100.00' },
        payment_voucher_no: 'PV001',
        payment_date: '2026-03-01T12:00:00.000Z',
        paid_at: '2026-03-02T08:00:00.000Z',
        owner: { legal_entity: { code: 'HY' } },
      },
    });

    expect(payload.journalType).toBe('reimbursement_paid');
    expect(payload.documentNo).toBe('F001');
    expect(payload.paymentDate).toBe('2026-03-01');
    expect(payload.dimensions.legalEntityCode).toBe('HY');
  });

  it('returns mock synced when journal export provider is mock', async () => {
    const result = await erp.exportJournalToErp(
      { erpSyncEnabled: true, erpSyncProvider: 'mock' },
      { journalType: 'purchase_request_commitment', documentNo: 'PR-001' },
    );
    expect(result.ok).toBe(true);
    expect(result.code).toBe('mock_synced');
    expect(result.response.externalId).toContain('PR-001');
  });

  it('returns mock procurement result when provider is mock', async () => {
    const result = await erp.exportProcurementToErp(
      { erpSyncEnabled: true, erpSyncProvider: 'mock' },
      { poNo: 'PO-001', contractNo: 'CT-001' },
    );
    expect(result.ok).toBe(true);
    expect(result.code).toBe('mock_synced');
    expect(result.response.externalPoNo).toContain('PO-001');
    expect(result.response.externalContractNo).toContain('CT-001');
  });

  it('returns mock master data result when provider is mock', async () => {
    const result = await erp.pullMasterDataFromErp(
      { erpSyncEnabled: true, erpSyncProvider: 'mock' },
      { resources: ['legal_entity', 'supplier'] },
    );
    expect(result.ok).toBe(true);
    expect(result.code).toBe('mock_synced');
    expect(result.data.legalEntities).toEqual([]);
    expect(result.data.suppliers).toEqual([]);
  });

  it('handles http master data 4xx errors', async () => {
    global.fetch = vi.fn().mockResolvedValue({
      ok: false,
      status: 422,
      headers: { get: () => 'application/json' },
      json: vi.fn().mockResolvedValue({ code: 'invalid_payload' }),
    });

    const result = await erp.pullMasterDataFromErp(
      {
        erpSyncEnabled: true,
        erpSyncProvider: 'http',
        erpMasterDataEndpoint: 'https://example.com/master-data',
        erpMasterDataTimeoutMs: 500,
      },
      { resources: ['legal_entity'] },
    );

    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_master_data_http_4xx');
    expect(result.retryable).toBe(false);
  });

  it('handles http journal export 5xx errors', async () => {
    global.fetch = vi.fn().mockResolvedValue({
      ok: false,
      status: 503,
      headers: { get: () => 'application/json' },
      json: vi.fn().mockResolvedValue({ code: 'service_unavailable' }),
    });

    const result = await erp.exportJournalToErp(
      {
        erpSyncEnabled: true,
        erpSyncProvider: 'http',
        erpJournalExportEndpoint: 'https://example.com/journals',
        erpSyncTimeoutMs: 500,
      },
      { journalType: 'purchase_order_accrual', documentNo: 'PO-001' },
    );

    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_sync_http_5xx');
    expect(result.retryable).toBe(true);
  });

  it('handles http procurement export 4xx errors', async () => {
    global.fetch = vi.fn().mockResolvedValue({
      ok: false,
      status: 400,
      headers: { get: () => 'application/json' },
      json: vi.fn().mockResolvedValue({ code: 'bad_request' }),
    });

    const result = await erp.exportProcurementToErp(
      {
        erpSyncEnabled: true,
        erpSyncProvider: 'http',
        erpProcurementExportEndpoint: 'https://example.com/procurement',
        erpProcurementTimeoutMs: 500,
      },
      { exportType: 'purchase_order_archive', poNo: 'PO-001' },
    );

    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_procurement_http_4xx');
    expect(result.retryable).toBe(false);
  });

  it('handles http procurement export timeout', async () => {
    global.fetch = vi.fn().mockRejectedValue({ name: 'AbortError' });

    const result = await erp.exportProcurementToErp(
      {
        erpSyncEnabled: true,
        erpSyncProvider: 'http',
        erpProcurementExportEndpoint: 'https://example.com/procurement',
        erpProcurementTimeoutMs: 500,
      },
      { exportType: 'purchase_order_archive', poNo: 'PO-001' },
    );

    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_procurement_timeout');
    expect(result.retryable).toBe(true);
  });

  it('handles http journal export timeout', async () => {
    global.fetch = vi.fn().mockRejectedValue({ name: 'AbortError' });

    const result = await erp.exportJournalToErp(
      {
        erpSyncEnabled: true,
        erpSyncProvider: 'http',
        erpJournalExportEndpoint: 'https://example.com/journals',
        erpSyncTimeoutMs: 500,
      },
      { documentNo: 'BX-001' },
    );

    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_sync_timeout');
    expect(result.retryable).toBe(true);
  });

  it('returns invalid provider if unsupported', async () => {
    const result = await erp.exportJournalToErp(
      { erpSyncEnabled: true, erpSyncProvider: 'invalid_xyz' },
      {},
    );
    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_sync_provider_invalid');
  });

  it('returns disabled if ERP sync is disabled', async () => {
    const result = await erp.exportJournalToErp({ erpSyncEnabled: false }, {});
    expect(result.ok).toBe(false);
    expect(result.code).toBe('erp_sync_disabled');
  });
});