const Fastify = require('fastify');

const integrationsRoutes = require('../../../src/routes/integrations');
const { AppError } = require('../../../src/utils/AppError');

const ACTOR_ID = 'aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa';
const OUTBOX_ID = '11111111-1111-4111-8111-111111111111';

function buildOutbox(overrides = {}) {
  return {
    id: OUTBOX_ID,
    event_type: 'erp.journal.export',
    status: 'failed',
    payload: {
      entityType: 'reimbursement_form',
      entityId: '22222222-2222-4222-8222-222222222222',
      sourceEventName: 'reimbursement.paid',
      journalType: 'reimbursement_paid',
      documentNo: 'BX-20260407-001',
      token: 'sanitized-value',
    },
    attempts: 2,
    max_attempts: 5,
    last_error: 'HTTP 500 | timeout',
    next_retry_at: new Date('2026-04-07T10:00:00.000Z'),
    created_at: new Date('2026-04-07T09:00:00.000Z'),
    processed_at: null,
    dead_letter_at: null,
    updated_at: new Date('2026-04-07T09:30:00.000Z'),
    ...overrides,
  };
}

async function buildApp(options = {}) {
  const app = Fastify();
  const actor = options.actor ?? {
    id: ACTOR_ID,
    permissionCodes: ['integration.manage'],
  };
  const findMany = options.findMany ?? vi.fn().mockResolvedValue([buildOutbox()]);
  const findUnique = options.findUnique ?? vi.fn().mockResolvedValue(buildOutbox());
  const update = options.update ?? vi.fn().mockImplementation(async ({ where, data }) => ({
    ...buildOutbox({ id: where.id, event_type: "notification.im" }),
    ...data,
    updated_at: new Date('2026-04-07T10:30:00.000Z'),
  }));
  const count = options.count ?? vi.fn().mockImplementation(async ({ where } = {}) => {
    if (where?.status === 'pending') return 3;
    if (where?.status === 'processing') return 1;
    if (where?.status === 'succeeded') return 8;
    if (where?.status === 'failed') return 2;
    if (where?.status === 'dead_letter') return 1;
    return 1;
  });
  const auditCreate = options.auditCreate ?? vi.fn().mockResolvedValue({});

  app.decorate('authenticate', async (request) => {
    request.employee = actor;
  });
  app.decorate('requirePermission', (permissionCode) => async (request) => {
    request.employee = actor;
    const permissionCodes = actor.permissionCodes ?? [];
    if (!permissionCodes.includes('*') && !permissionCodes.includes(permissionCode)) {
      throw new AppError({ code: 'PERM_001', message: '无权限', statusCode: 403 });
    }
  });
  app.decorate('hasPermission', (employee, permissionCode) => {
    const permissionCodes = employee.permissionCodes ?? [];
    return permissionCodes.includes('*') || permissionCodes.includes(permissionCode);
  });
  app.decorate('config', {
    erpSyncEnabled: true,
    erpSyncProvider: 'mock',
    erpMasterDataEndpoint: 'http://example.test/master-data',
    erpJournalExportEndpoint: 'http://example.test/journal',
    erpSyncEndpoint: 'http://example.test/journal',
    erpMasterDataSyncCron: '0 * * * *',
  });
  app.decorate('prisma', {
    featureFlag: {
      findUnique: vi.fn().mockResolvedValue({
        id: 'flag-erp',
        flag_key: 'erp_sync',
        override_mode: 'force_on',
        rollout_type: 'global',
        department_ids: [],
      }),
    },
    integrationOutbox: {
      findMany,
      findUnique,
      count,
      update,
    },
    auditLog: {
      create: auditCreate,
    },
  });
  app.setErrorHandler((error, request, reply) => {
    reply.status(error.statusCode || 500).send({
      requestId: request.id,
      error: {
        code: error.code || 'SYS_001',
        message: error.message,
        details: error.details ?? null,
      },
    });
  });

  await app.register(integrationsRoutes, { prefix: '/api' });
  return { app, findMany, findUnique, count, update, auditCreate };
}

describe('integrations outbox routes', () => {
  it('keeps retired ERP history readable but refuses retry and removed endpoints', async () => {
    const { app, update, auditCreate } = await buildApp();
    const read = await app.inject({ method: 'GET', url: `/api/integrations/outbox/${OUTBOX_ID}` });
    expect(read.statusCode).toBe(200);
    const retry = await app.inject({ method: 'POST', url: `/api/integrations/outbox/${OUTBOX_ID}/retry`, payload: {} });
    expect(retry.statusCode).toBe(409);
    expect(retry.json().error.details.reasonCode).toBe('integration.erp_retired');
    expect(update).not.toHaveBeenCalled(); expect(auditCreate).not.toHaveBeenCalled();
    const removed = await app.inject({ method: 'POST', url: `/api/integrations/erp/sync/${OUTBOX_ID}`, payload: {} });
    expect(removed.statusCode).toBe(404);
    await app.close();
  });

  it('lists outbox events with filters and payload summary', async () => {
    const { app, findMany, count } = await buildApp();

    const response = await app.inject({
      method: 'GET',
      url: '/api/integrations/outbox?page=2&pageSize=10&status=failed&event_type=erp.journal.export',
    });

    expect(response.statusCode).toBe(200);
    expect(findMany).toHaveBeenCalledWith(
      expect.objectContaining({
        where: {
          status: 'failed',
          event_type: 'erp.journal.export',
        },
        orderBy: [{ created_at: 'desc' }],
        skip: 10,
        take: 10,
      }),
    );
    expect(count).toHaveBeenCalledWith({
      where: {
        status: 'failed',
        event_type: 'erp.journal.export',
      },
    });

    const payload = response.json();
    expect(payload.data.page).toBe(2);
    expect(payload.data.items[0]).toMatchObject({
      id: OUTBOX_ID,
      eventType: 'erp.journal.export',
      status: 'failed',
      payloadSummary: {
        entityType: 'reimbursement_form',
        entityId: '22222222-2222-4222-8222-222222222222',
        sourceEventName: 'reimbursement.paid',
        journalType: 'reimbursement_paid',
        exportType: null,
        identityCode: 'BX-20260407-001',
      },
    });

    await app.close();
  });

  it('returns stats with missing buckets defaulted to zero', async () => {
    const { app } = await buildApp({
      count: vi.fn().mockImplementation(async ({ where } = {}) => {
        if (where?.status === 'succeeded') return 5;
        return 0;
      }),
    });

    const response = await app.inject({
      method: 'GET',
      url: '/api/integrations/outbox/stats',
    });

    expect(response.statusCode).toBe(200);
    expect(response.json().data).toEqual({
      pending: 0,
      processing: 0,
      succeeded: 5,
      failed: 0,
      deadLetter: 0,
    });

    await app.close();
  });

  it('returns outbox detail with full payload', async () => {
    const { app, findUnique } = await buildApp();

    const response = await app.inject({
      method: 'GET',
      url: `/api/integrations/outbox/${OUTBOX_ID}`,
    });

    expect(response.statusCode).toBe(200);
    expect(findUnique).toHaveBeenCalledWith({ where: { id: OUTBOX_ID } });
    expect(response.json().data.item.payload).toMatchObject({
      documentNo: 'BX-20260407-001',
      token: 'sanitized-value',
    });

    await app.close();
  });

  it('retries failed or dead-letter outbox events by resetting status to pending', async () => {
    const { app, update, auditCreate } = await buildApp({
      findUnique: vi.fn().mockResolvedValue(buildOutbox({ event_type: 'notification.im', status: 'dead_letter', dead_letter_at: new Date('2026-04-07T09:40:00.000Z') })),
    });

    const response = await app.inject({
      method: 'POST',
      url: `/api/integrations/outbox/${OUTBOX_ID}/retry`,
      payload: {},
    });

    expect(response.statusCode).toBe(200);
    expect(update).toHaveBeenCalledWith(
      expect.objectContaining({
        where: { id: OUTBOX_ID },
        data: expect.objectContaining({
          status: 'pending',
          attempts: 0,
          last_error: null,
          next_retry_at: expect.any(Date),
          processed_at: null,
          dead_letter_at: null,
          updated_by: ACTOR_ID,
        }),
      }),
    );
    expect(auditCreate).toHaveBeenCalledWith(
      expect.objectContaining({
        data: expect.objectContaining({
          action: 'INTEGRATION_OUTBOX_RETRIED',
          target_type: 'integration_outbox',
          target_id: OUTBOX_ID,
          extra: expect.objectContaining({
            previousStatus: 'dead_letter',
            nextStatus: 'pending',
            eventType: 'notification.im',
            outboxId: OUTBOX_ID,
          }),
        }),
      }),
    );

    await app.close();
  });

  it('rejects retry for succeeded items with 409', async () => {
    const { app, update, auditCreate } = await buildApp({
      findUnique: vi.fn().mockResolvedValue(buildOutbox({ status: 'succeeded', last_error: null })),
    });

    const response = await app.inject({
      method: 'POST',
      url: `/api/integrations/outbox/${OUTBOX_ID}/retry`,
      payload: {},
    });

    expect(response.statusCode).toBe(409);
    expect(update).not.toHaveBeenCalled();
    expect(auditCreate).not.toHaveBeenCalled();

    await app.close();
  });

  it('blocks users without integration.manage', async () => {
    const { app } = await buildApp({
      actor: {
        id: ACTOR_ID,
        permissionCodes: [],
      },
    });

    const response = await app.inject({
      method: 'GET',
      url: '/api/integrations/outbox',
    });

    expect(response.statusCode).toBe(403);
    expect(response.json().error.code).toBe('PERM_001');

    await app.close();
  });
});

describe('shared outbox operation reasons', () => {
  it.each([['GET', '/integrations/outbox?page=0', 'integration.outbox_query_invalid'], ['GET', '/integrations/outbox/bad', 'integration.outbox_id_invalid'], ['POST', '/integrations/outbox/bad/retry', 'integration.outbox_id_invalid']])('rejects %s %s before reads or mutations', async (method, path, reasonCode) => { const { app, findMany, findUnique, update, auditCreate } = await buildApp(); try { const r = await app.inject({ method, url: `/api${path}` }); expect(r.statusCode).toBe(400); expect(r.json().error.details.reasonCode).toBe(reasonCode); expect(findMany).not.toHaveBeenCalled(); expect(findUnique).not.toHaveBeenCalled(); expect(update).not.toHaveBeenCalled(); expect(auditCreate).not.toHaveBeenCalled(); } finally { await app.close(); } });
  it.each(['pending', 'processing', 'succeeded'])('keeps non-retryable notification state %s', async (status) => { const { app, update, auditCreate } = await buildApp({ findUnique: vi.fn().mockResolvedValue(buildOutbox({ event_type: 'notification.im', status })) }); try { const r = await app.inject({ method: 'POST', url: `/api/integrations/outbox/${OUTBOX_ID}/retry` }); expect(r.statusCode).toBe(409); expect(r.json().error.details).toEqual({ outbox: 'integration_outbox_retry_status_invalid', status, reasonCode: 'integration.retry_state_invalid' }); expect(update).not.toHaveBeenCalled(); expect(auditCreate).not.toHaveBeenCalled(); } finally { await app.close(); } });
  it.each(['failed', 'dead_letter'])('retains notification %s retry as pending without delivery', async (status) => { const before = buildOutbox({ event_type: 'notification.im', status, payload: { channelId: 'synthetic-channel' } }); const update = vi.fn(async ({ data }) => ({ ...before, ...data })); const { app, auditCreate } = await buildApp({ findUnique: vi.fn().mockResolvedValue(before), update }); try { const r = await app.inject({ method: 'POST', url: `/api/integrations/outbox/${OUTBOX_ID}/retry` }); expect(r.statusCode).toBe(200); expect(update.mock.calls[0][0].data).toMatchObject({ status: 'pending', attempts: 0, last_error: null }); expect(auditCreate).toHaveBeenCalledOnce(); } finally { await app.close(); } });
});