feat(printer): 实现虚拟用户0元订单创建功能

- 新增CreateVirtualOrderRequest请求参数类
- 实现createVirtualOrder服务方法，支持根据source创建虚拟用户订单
- 自动生成虚拟用户ID并创建对应的人脸记录
- 创建member_print记录并设置照片数量
- 支持指定或自动选择景区内可用打印机
- 创建0元订单并触发购买后逻辑
- 返回订单相关信息包括orderId、faceId等
- 添加详细的日志记录便于调试和追踪
- 实现完整的异常处理和参数校验

src/main/java/com/ycwl/basic/model/printer/req/CreateVirtualOrderRequest.java

@@ -0,0 +1,24 @@
+package com.ycwl.basic.model.printer.req;
+
+import lombok.Data;
+
+/**
+ * 创建虚拟用户0元订单请求参数
+ */
+@Data
+public class CreateVirtualOrderRequest {
+    /**
+     * source记录ID
+     */
+    private Long sourceId;
+
+    /**
+     * 景区ID
+     */
+    private Long scenicId;
+
+    /**
+     * 打印机ID（可选）
+     */
+    private Integer printerId;
+}

src/main/java/com/ycwl/basic/service/printer/PrinterService.java

@@ -105,4 +105,17 @@ public interface PrinterService {
     Integer addUserPhotoFromPuzzle(Long memberId, Long scenicId, Long faceId, String resultImageUrl, Long puzzleRecordId);
 
     int handleReprint(Integer id, ReprintRequest request);
+
+    /**
+     * 创建虚拟用户0元订单
+     * 1. 根据source创建人脸记录（使用虚拟用户ID）
+     * 2. 创建member_print记录
+     * 3. 创建0元订单并触发购买后逻辑
+     *
+     * @param sourceId source记录ID
+     * @param scenicId 景区ID
+     * @param printerId 打印机ID（可选）
+     * @return 订单信息
+     */
+    Map<String, Object> createVirtualOrder(Long sourceId, Long scenicId, Integer printerId);
 }

src/main/java/com/ycwl/basic/service/printer/impl/PrinterServiceImpl.java

@@ -1571,4 +1571,125 @@ public class PrinterServiceImpl implements PrinterService {
 
         return rows;
     }
+
+    @Override
+    public Map<String, Object> createVirtualOrder(Long sourceId, Long scenicId, Integer printerId) {
+        // 1. 查询source记录
+        SourceEntity source = sourceMapper.getEntity(sourceId);
+        FaceSampleEntity faceSample = faceSampleMapper.getEntity(source.getFaceSampleId());
+        if (source == null) {
+            throw new BaseException("Source记录不存在");
+        }
+        if (!scenicId.equals(source.getScenicId())) {
+            throw new BaseException("Source记录不属于该景区");
+        }
+        if (faceSample == null) {
+            throw new BaseException("人脸样本不存在");
+        }
+
+
+        // 2. 生成虚拟用户ID（使用雪花算法生成一个不在用户表中的ID）
+        Long virtualMemberId = SnowFlakeUtil.getLongId();
+        log.info("创建虚拟用户0元订单: virtualMemberId={}, sourceId={}, scenicId={}", virtualMemberId, sourceId, scenicId);
+
+        // 3. 创建人脸记录
+        Long faceId = SnowFlakeUtil.getLongId();
+        FaceEntity face = new FaceEntity();
+        face.setId(faceId);
+        face.setScenicId(scenicId);
+        face.setMemberId(virtualMemberId);
+        // 从source获取人脸URL
+        face.setFaceUrl(faceSample.getFaceUrl());
+        face.setCreateAt(new Date());
+        faceMapper.add(face);
+        log.info("创建人脸记录成功: faceId={}, virtualMemberId={}, origUrl={}", faceId, virtualMemberId, source.getUrl());
+
+        // 4. 创建member_print记录（参考addUserPhotoFromSource方法）
+        Integer memberPrintId = addUserPhoto(virtualMemberId, scenicId, source.getUrl(), faceId, sourceId);
+        if (memberPrintId == null) {
+            throw new BaseException("创建member_print记录失败");
+        }
+        log.info("创建member_print记录成功: memberPrintId={}, faceId={}", memberPrintId, faceId);
+
+        // 设置打印数量为1
+        setPhotoQuantity(virtualMemberId, scenicId, memberPrintId.longValue(), 1);
+
+        // 5. 验证打印机
+        if (printerId == null) {
+            List<PrinterResp> printerList = printerMapper.listByScenicId(scenicId);
+            if (printerList.isEmpty()) {
+                throw new BaseException("该景区没有可用的打印机");
+            }
+            if (printerList.size() != 1) {
+                throw new BaseException("请选择打印机");
+            }
+            printerId = printerList.getFirst().getId();
+        }
+        PrinterEntity printer = printerMapper.getById(printerId);
+        if (printer == null) {
+            throw new BaseException("打印机不存在");
+        }
+        if (printer.getStatus() != 1) {
+            throw new BaseException("打印机已停用");
+        }
+        if (!printer.getScenicId().equals(scenicId)) {
+            throw new BaseException("打印机不属于该景区");
+        }
+
+        // 6. 创建0元订单
+        OrderEntity order = new OrderEntity();
+        Long orderId = SnowFlakeUtil.getLongId();
+        redisTemplate.opsForValue().set("printer_size:" + orderId, printer.getPreferPaper(), 60, TimeUnit.SECONDS);
+        order.setId(orderId);
+        order.setMemberId(virtualMemberId);
+        order.setFaceId(faceId);
+        order.setOpenId(""); // 虚拟用户没有openId
+        order.setScenicId(scenicId);
+        order.setType(3); // 照片打印类型
+
+        // 设置打印机
+        batchSetUserPhotoListToPrinter(virtualMemberId, scenicId, printerId);
+
+        // 获取用户照片列表
+        List<MemberPrintResp> userPhotoList = getUserPhotoList(virtualMemberId, scenicId, faceId);
+        List<OrderItemEntity> orderItems = userPhotoList.stream().map(goods -> {
+            OrderItemEntity orderItem = new OrderItemEntity();
+            orderItem.setOrderId(orderId);
+            orderItem.setGoodsId(Long.valueOf(goods.getId()));
+            orderItem.setGoodsType(3);
+            return orderItem;
+        }).collect(Collectors.toList());
+
+        // 设置价格为0
+        order.setPrice(BigDecimal.ZERO);
+        order.setSlashPrice(BigDecimal.ZERO);
+        order.setPayPrice(BigDecimal.ZERO);
+        order.setFaceId(faceId);
+        order.setStatus(OrderStateEnum.PAID.getState());
+        order.setPayAt(new Date());
+
+        // 保存订单
+        orderMapper.add(order);
+        int addOrderItems = orderMapper.addOrderItems(orderItems);
+        if (addOrderItems == NumberConstant.ZERO) {
+            log.error("订单明细添加失败");
+            throw new BaseException("订单添加失败");
+        }
+
+        log.info("创建0元订单成功: orderId={}, virtualMemberId={}, faceId={}", orderId, virtualMemberId, faceId);
+
+        // 7. 触发购买后逻辑（调用setUserIsBuyItem）
+        setUserIsBuyItem(virtualMemberId, memberPrintId.longValue(), orderId);
+        log.info("触发购买后逻辑完成: orderId={}", orderId);
+
+        // 8. 返回结果
+        Map<String, Object> result = new HashMap<>();
+        result.put("orderId", orderId);
+        result.put("faceId", faceId);
+        result.put("virtualMemberId", virtualMemberId);
+        result.put("memberPrintId", memberPrintId);
+        result.put("needPay", false);
+
+        return result;
+    }
 }