update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/PracticeGroupServiceImpl.java

@@ -3544,7 +3544,14 @@ public class PracticeGroupServiceImpl extends BaseServiceImpl<Long, PracticeGrou
         BigDecimal originalAmount = oneMonthOriginalPrice.multiply(new BigDecimal(practiceGroupBuyParams.getBuyMonths()));
         BigDecimal studentSingleCourseOriginalCost=originalAmount.divide(new BigDecimal(practiceCourses.size()), CommonConstants.DECIMAL_PLACE, ROUND_DOWN);
 
-        for (CourseSchedule courseSchedule : practiceCourses) {
+        //使用优惠券
+        StudentPaymentOrder studentPaymentOrder = sysCouponCodeService.use(practiceGroupBuyParams.getCouponIdList(),amount,true);
+        //实际支付金额，去除优惠券
+        BigDecimal actualPrice = studentPaymentOrder.getExpectAmount();
+        BigDecimal divide = actualPrice.divide(new BigDecimal(practiceCourses.size()), ROUND_DOWN);
+        BigDecimal firstAmount = actualPrice.subtract(divide.multiply(new BigDecimal(practiceCourses.size()))).add(divide);
+        for (int i = 0; i < practiceCourses.size(); i++) {
+            CourseSchedule courseSchedule = practiceCourses.get(i);
             //课程与老师薪水表
             CourseScheduleTeacherSalary courseScheduleTeacherSalary = new CourseScheduleTeacherSalary();
             courseScheduleTeacherSalary.setCourseScheduleId(courseSchedule.getId());
@@ -3563,9 +3570,13 @@ public class PracticeGroupServiceImpl extends BaseServiceImpl<Long, PracticeGrou
             courseScheduleStudentPayment.setGroupType(GroupType.PRACTICE);
             courseScheduleStudentPayment.setMusicGroupId(practiceGroupBuyParams.getId().toString());
             courseScheduleStudentPayment.setCourseScheduleId(courseSchedule.getId());
-            courseScheduleStudentPayment.setUserId(practiceGroupBuyParams.getStudentId());
-            courseScheduleStudentPayment.setExpectPrice(studentSingleCourseCost);
-            courseScheduleStudentPayment.setActualPrice(studentSingleCourseCost);
+            courseScheduleStudentPayment.setUserId(practiceGroupBuyParams.getStudentId());if(i == 0){
+                courseScheduleStudentPayment.setExpectPrice(firstAmount);
+                courseScheduleStudentPayment.setActualPrice(firstAmount);
+            }else {
+                courseScheduleStudentPayment.setExpectPrice(divide);
+                courseScheduleStudentPayment.setActualPrice(divide);
+            }
             courseScheduleStudentPayment.setOriginalPrice(studentSingleCourseOriginalCost);
             courseScheduleStudentPayment.setClassGroupId(classGroup.getId());
             courseScheduleStudentPayment.setCreateTime(now);
@@ -3602,9 +3613,7 @@ public class PracticeGroupServiceImpl extends BaseServiceImpl<Long, PracticeGrou
             }
             return BaseController.failed(HttpStatus.FOUND, errMessage);
         }
-
-        //使用优惠券
-        StudentPaymentOrder studentPaymentOrder = sysCouponCodeService.use(practiceGroupBuyParams.getCouponIdList(),amount,true);
+        
         amount = studentPaymentOrder.getActualAmount();
         studentPaymentOrder.setUserId(practiceGroupBuyParams.getStudentId());
         studentPaymentOrder.setGroupType(GroupType.PRACTICE);