import {
  NfcManufacturingService,
  ManufacturingBatchStatus,
  CreateManufacturingBatchDto,
  calculateBatchYieldRate,
  canTransitionBatchStatus,
} from '../../../src/modules/nfc/service/manufacturing';

describe('Point 45: 国际实体卡供应链生产批次工单生命周期与良率检验', () => {
  let service: NfcManufacturingService;

  beforeEach(() => {
    service = new NfcManufacturingService();
  });

  describe('1. 生产工单状态机流转规则 (canTransitionBatchStatus)', () => {
    it('应允许合法正向生命周期流转: draft -> ordered -> manufacturing -> qa_inspected -> in_stock', () => {
      expect(canTransitionBatchStatus('draft', 'ordered')).toBe(true);
      expect(canTransitionBatchStatus('ordered', 'manufacturing')).toBe(true);
      expect(canTransitionBatchStatus('manufacturing', 'qa_inspected')).toBe(true);
      expect(canTransitionBatchStatus('qa_inspected', 'in_stock')).toBe(true);
    });

    it('质检不合格可流转为 rejected 废品或返工', () => {
      expect(canTransitionBatchStatus('qa_inspected', 'rejected')).toBe(true);
      expect(canTransitionBatchStatus('manufacturing', 'cancelled')).toBe(true);
      expect(canTransitionBatchStatus('draft', 'cancelled')).toBe(true);
    });

    it('逆向或跨阶段非法流转应坚决拒绝', () => {
      expect(canTransitionBatchStatus('in_stock', 'draft')).toBe(false);
      expect(canTransitionBatchStatus('draft', 'in_stock')).toBe(false);
      expect(canTransitionBatchStatus('rejected', 'in_stock')).toBe(false);
    });
  });

  describe('2. calculateBatchYieldRate (出厂质检良率与损耗统计)', () => {
    it('应精确计算生产良品率 (Yield Rate)', () => {
      // 计划生产 1000 张，实际合格 985 张，报废 15 张
      const result = calculateBatchYieldRate(1000, 985, 15);
      expect(result.yieldRate).toBe(0.985);
      expect(result.defectRate).toBe(0.015);
      expect(result.isQualified).toBe(true); // 默认合格线 >= 95%
    });

    it('良率低于阈值 (如 95%) 时应标记为未达标', () => {
      const result = calculateBatchYieldRate(1000, 920, 80, 0.95);
      expect(result.yieldRate).toBe(0.92);
      expect(result.isQualified).toBe(false);
      expect(result.defectCount).toBe(80);
    });

    it('非法入参处理 (如数量为负或超过总数) 应安全抛出异常', () => {
      expect(() => calculateBatchYieldRate(0, 0, 0)).toThrow();
      expect(() => calculateBatchYieldRate(100, 105, 0)).toThrow();
      expect(() => calculateBatchYieldRate(100, -5, 0)).toThrow();
    });
  });

  describe('3. NfcManufacturingService 批次工单管理', () => {
    it('应能创建生产批次并初始化为 draft 状态', () => {
      const batchDto: CreateManufacturingBatchDto = {
        batchNo: 'MFG-2026-Q4-001',
        materialType: 'MATTE_BLACK_METAL', // 磨砂黑金属卡
        targetQuantity: 500,
        factoryName: 'Shenzhen Smart Chip Technology Co.',
        chipModel: 'NTAG216',
        cardFinishing: 'GOLD_LASER_ENGRAVING', // 激光金雕
      };

      const batch = service.createBatch(batchDto);
      expect(batch.id).toBeDefined();
      expect(batch.batchNo).toBe('MFG-2026-Q4-001');
      expect(batch.status).toBe('draft');
      expect(batch.targetQuantity).toBe(500);
      expect(batch.qualifiedQuantity).toBe(0);
    });

    it('更新生产状态并在达到 qa_inspected 时记录质检指标', () => {
      const batch = service.createBatch({
        batchNo: 'MFG-2026-Q4-002',
        materialType: 'ECO_BAMBOO_WOOD', // 环保竹木卡
        targetQuantity: 200,
        factoryName: 'EcoCard Global Ltd.',
        chipModel: 'NTAG213',
      });

      // 流转为 ordered -> manufacturing
      service.updateBatchStatus(batch.batchNo, 'ordered');
      service.updateBatchStatus(batch.batchNo, 'manufacturing');

      // 质检录入
      const updated = service.recordBatchInspection(batch.batchNo, 196, 4);
      expect(updated.status).toBe('qa_inspected');
      expect(updated.qualifiedQuantity).toBe(196);
      expect(updated.defectQuantity).toBe(4);
      expect(updated.yieldRate).toBe(0.98);

      // 入库
      const inStock = service.updateBatchStatus(batch.batchNo, 'in_stock');
      expect(inStock.status).toBe('in_stock');
    });
  });
});