增加课时观看进度记录

src/main/java/xyz/playedu/api/controller/frontend/HourController.java

@@ -1,17 +1,18 @@
 package xyz.playedu.api.controller.frontend;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 import xyz.playedu.api.PlayEduFCtx;
 import xyz.playedu.api.caches.UserCanSeeCourseCache;
-import xyz.playedu.api.domain.Course;
-import xyz.playedu.api.domain.CourseHour;
-import xyz.playedu.api.domain.Resource;
+import xyz.playedu.api.domain.*;
 import xyz.playedu.api.exception.NotFoundException;
 import xyz.playedu.api.exception.ServiceException;
+import xyz.playedu.api.request.frontend.CourseHourRecordRequest;
 import xyz.playedu.api.service.CourseHourService;
 import xyz.playedu.api.service.CourseService;
 import xyz.playedu.api.service.ResourceService;
+import xyz.playedu.api.service.UserCourseHourRecordService;
 import xyz.playedu.api.types.JsonResponse;
 
 import java.util.HashMap;
@@ -36,6 +37,9 @@ public class HourController {
     @Autowired
     private ResourceService resourceService;
 
+    @Autowired
+    private UserCourseHourRecordService userCourseHourRecordService;
+
     @GetMapping("/{id}/play")
     public JsonResponse play(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) throws NotFoundException, ServiceException {
         Course course = courseService.findOrFail(courseId);
@@ -52,10 +56,28 @@ public class HourController {
     }
 
     @PostMapping("/{id}/record")
-    public JsonResponse record(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) throws NotFoundException, ServiceException {
+    public JsonResponse record(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id, @RequestBody @Validated CourseHourRecordRequest req) throws NotFoundException, ServiceException {
+        Integer duration = req.getDuration();
+        if (duration <= 0) {
+            return JsonResponse.error("duration参数错误");
+        }
+        User user = PlayEduFCtx.getUser();
+        // 线上课检测
+        Course course = courseService.findOrFail(courseId);
+        // 权限校验
+        userCanSeeCourseCache.check(user, course, true);
+        // 课时检测
+        CourseHour hour = hourService.findOrFail(id, courseId);
+
+        userCourseHourRecordService.storeOrUpdate(user.getId(), course.getId(), hour.getId(), duration, hour.getDuration());
+
+        return JsonResponse.success();
+    }
+
+    @PostMapping("/{id}/ping")
+    public JsonResponse ping(@PathVariable(name = "courseId") Integer courseId, @PathVariable(name = "id") Integer id) throws NotFoundException, ServiceException {
         Course course = courseService.findOrFail(courseId);
         userCanSeeCourseCache.check(PlayEduFCtx.getUser(), course, true);
-        CourseHour hour = hourService.findOrFail(id, courseId);
         return JsonResponse.success();
     }
 

src/main/java/xyz/playedu/api/event/UserCourseHourFinishedEvent.java

@@ -0,0 +1,28 @@
+package xyz.playedu.api.event;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.context.ApplicationEvent;
+
+import java.util.Date;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/20 17:32
+ */
+@Getter
+@Setter
+public class UserCourseHourFinishedEvent extends ApplicationEvent {
+    private Integer userId;
+    private Integer courseId;
+    private Integer hourId;
+    private Date createdAt;
+
+    public UserCourseHourFinishedEvent(Object source, Integer userId, Integer courseId, Integer hourId) {
+        super(source);
+        this.userId = userId;
+        this.courseId = courseId;
+        this.hourId = hourId;
+        this.createdAt = new Date();
+    }
+}

src/main/java/xyz/playedu/api/listener/UserCourseHourFinishedListener.java

@@ -0,0 +1,36 @@
+package xyz.playedu.api.listener;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.event.EventListener;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Component;
+import xyz.playedu.api.event.UserCourseHourFinishedEvent;
+import xyz.playedu.api.service.CourseHourService;
+import xyz.playedu.api.service.UserCourseHourRecordService;
+import xyz.playedu.api.service.UserCourseRecordService;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/20 17:41
+ */
+@Component
+public class UserCourseHourFinishedListener {
+
+    @Autowired
+    private UserCourseRecordService userCourseRecordService;
+
+    @Autowired
+    private UserCourseHourRecordService userCourseHourRecordService;
+
+    @Autowired
+    private CourseHourService hourService;
+
+    @EventListener
+    @Async
+    public void userCourseProgressUpdate(UserCourseHourFinishedEvent evt) {
+        Integer hourCount = hourService.getCountByCourseId(evt.getCourseId());
+        Integer finishedCount = userCourseHourRecordService.getFinishedHourCount(evt.getUserId(), evt.getCourseId());
+        userCourseRecordService.storeOrUpdate(evt.getUserId(), evt.getCourseId(), hourCount, finishedCount);
+    }
+
+}

src/main/java/xyz/playedu/api/request/frontend/CourseHourRecordRequest.java

@@ -0,0 +1,14 @@
+package xyz.playedu.api.request.frontend;
+
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/20 17:12
+ */
+@Data
+public class CourseHourRecordRequest {
+    @NotNull(message = "duration参数不存在")
+    private Integer duration;
+}

src/main/java/xyz/playedu/api/service/UserCourseHourRecordService.java

@@ -4,10 +4,14 @@ import xyz.playedu.api.domain.UserCourseHourRecord;
 import com.baomidou.mybatisplus.extension.service.IService;
 
 /**
-* @author tengteng
-* @description 针对表【user_course_hour_records】的数据库操作Service
-* @createDate 2023-03-20 16:41:08
-*/
+ * @author tengteng
+ * @description 针对表【user_course_hour_records】的数据库操作Service
+ * @createDate 2023-03-20 16:41:08
+ */
 public interface UserCourseHourRecordService extends IService<UserCourseHourRecord> {
+    UserCourseHourRecord find(Integer userId, Integer courseId, Integer hourId);
 
+    UserCourseHourRecord storeOrUpdate(Integer userId, Integer courseId, Integer hourId, Integer duration, Integer totalDuration);
+
+    Integer getFinishedHourCount(Integer userId, Integer courseId);
 }

src/main/java/xyz/playedu/api/service/UserCourseRecordService.java

@@ -4,10 +4,13 @@ import xyz.playedu.api.domain.UserCourseRecord;
 import com.baomidou.mybatisplus.extension.service.IService;
 
 /**
-* @author tengteng
-* @description 针对表【user_course_records】的数据库操作Service
-* @createDate 2023-03-20 16:41:04
-*/
+ * @author tengteng
+ * @description 针对表【user_course_records】的数据库操作Service
+ * @createDate 2023-03-20 16:41:04
+ */
 public interface UserCourseRecordService extends IService<UserCourseRecord> {
 
+    UserCourseRecord find(Integer userId, Integer courseId);
+
+    void storeOrUpdate(Integer userId, Integer courseId, Integer hourCount, Integer finishedCount);
 }

src/main/java/xyz/playedu/api/service/impl/UserCourseHourRecordServiceImpl.java

@@ -1,20 +1,86 @@
 package xyz.playedu.api.service.impl;
 
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
 import xyz.playedu.api.domain.UserCourseHourRecord;
+import xyz.playedu.api.event.UserCourseHourFinishedEvent;
 import xyz.playedu.api.service.UserCourseHourRecordService;
 import xyz.playedu.api.mapper.UserCourseHourRecordMapper;
 import org.springframework.stereotype.Service;
 
-/**
-* @author tengteng
-* @description 针对表【user_course_hour_records】的数据库操作Service实现
-* @createDate 2023-03-20 16:41:08
-*/
-@Service
-public class UserCourseHourRecordServiceImpl extends ServiceImpl<UserCourseHourRecordMapper, UserCourseHourRecord>
-    implements UserCourseHourRecordService{
+import java.util.Date;
 
+/**
+ * @author tengteng
+ * @description 针对表【user_course_hour_records】的数据库操作Service实现
+ * @createDate 2023-03-20 16:41:08
+ */
+@Service
+public class UserCourseHourRecordServiceImpl extends ServiceImpl<UserCourseHourRecordMapper, UserCourseHourRecord> implements UserCourseHourRecordService {
+
+    @Autowired
+    private ApplicationContext ctx;
+
+    @Override
+    public UserCourseHourRecord find(Integer userId, Integer courseId, Integer hourId) {
+        return getOne(query().getWrapper().eq("user_id", userId).eq("course_id", courseId).eq("hour_id", hourId));
+    }
+
+    @Override
+    public UserCourseHourRecord storeOrUpdate(Integer userId, Integer courseId, Integer hourId, Integer duration, Integer totalDuration) {
+        UserCourseHourRecord record = find(userId, courseId, hourId);
+
+        // 已看完
+        if (record != null && record.getIsFinished() == 1) {
+            return record;
+        }
+
+        // 是否看完
+        boolean isFinished = duration >= totalDuration;
+        Date finishedAt = isFinished ? new Date() : null;
+
+        if (record == null) {
+            UserCourseHourRecord insertRecord = new UserCourseHourRecord();
+            insertRecord.setUserId(userId);
+            insertRecord.setCourseId(courseId);
+            insertRecord.setHourId(hourId);
+            insertRecord.setTotalDuration(totalDuration);
+            insertRecord.setFinishedDuration(duration);
+            insertRecord.setIsFinished(isFinished ? 1 : 0);
+            insertRecord.setFinishedAt(finishedAt);
+            insertRecord.setCreatedAt(new Date());
+            insertRecord.setUpdatedAt(new Date());
+
+            save(insertRecord);
+
+            record = insertRecord;
+        } else {
+            // 未看完 && 大于存在的观看记录时长
+            if (record.getFinishedDuration() < duration) {
+                UserCourseHourRecord updateRecord = new UserCourseHourRecord();
+                updateRecord.setId(record.getId());
+                updateRecord.setTotalDuration(totalDuration);
+                updateRecord.setFinishedDuration(duration);
+                updateRecord.setIsFinished(isFinished ? 1 : 0);
+                updateRecord.setFinishedAt(finishedAt);
+
+                updateById(updateRecord);
+                record = updateRecord;
+            }
+        }
+
+        if (isFinished) {
+            ctx.publishEvent(new UserCourseHourFinishedEvent(this, record.getUserId(), record.getCourseId(), record.getHourId()));
+        }
+
+        return record;
+    }
+
+    @Override
+    public Integer getFinishedHourCount(Integer userId, Integer courseId) {
+        return Math.toIntExact(count(query().getWrapper().eq("user_id", userId).eq("course_id", courseId).eq("is_finished", 1)));
+    }
 }
 
 

src/main/java/xyz/playedu/api/service/impl/UserCourseRecordServiceImpl.java

@@ -6,15 +6,64 @@ import xyz.playedu.api.service.UserCourseRecordService;
 import xyz.playedu.api.mapper.UserCourseRecordMapper;
 import org.springframework.stereotype.Service;
 
+import java.util.Date;
+
 /**
-* @author tengteng
-* @description 针对表【user_course_records】的数据库操作Service实现
-* @createDate 2023-03-20 16:41:04
-*/
+ * @author tengteng
+ * @description 针对表【user_course_records】的数据库操作Service实现
+ * @createDate 2023-03-20 16:41:04
+ */
 @Service
 public class UserCourseRecordServiceImpl extends ServiceImpl<UserCourseRecordMapper, UserCourseRecord>
-    implements UserCourseRecordService{
+        implements UserCourseRecordService {
 
+    @Override
+    public UserCourseRecord find(Integer userId, Integer courseId) {
+        return getOne(query().getWrapper().eq("user_id", userId).eq("course_id", courseId));
+    }
+
+    @Override
+    public void storeOrUpdate(Integer userId, Integer courseId, Integer hourCount, Integer finishedCount) {
+        if (hourCount == 0) {
+            return;
+        }
+
+        UserCourseRecord record = find(userId, courseId);
+
+        // 已看完
+        if (record != null && record.getIsFinished() == 1) {
+            return;
+        }
+
+        boolean isFinished = finishedCount >= hourCount;
+        Date finishedAt = isFinished ? new Date() : null;
+        Integer progress = finishedCount * 100 / hourCount * 100;
+
+        if (record == null) {
+            UserCourseRecord insertRecord = new UserCourseRecord();
+            insertRecord.setUserId(userId);
+            insertRecord.setCourseId(courseId);
+            insertRecord.setHourCount(hourCount);
+            insertRecord.setFinishedCount(finishedCount);
+            insertRecord.setFinishedAt(finishedAt);
+            insertRecord.setIsFinished(isFinished ? 1 : 0);
+            insertRecord.setProgress(progress);
+            insertRecord.setCreatedAt(new Date());
+            insertRecord.setUpdatedAt(new Date());
+
+            save(insertRecord);
+        } else {
+            UserCourseRecord updateRecord = new UserCourseRecord();
+            updateRecord.setId(record.getId());
+            updateRecord.setHourCount(hourCount);
+            updateRecord.setFinishedCount(finishedCount);
+            updateRecord.setFinishedAt(finishedAt);
+            updateRecord.setIsFinished(isFinished ? 1 : 0);
+            updateRecord.setProgress(progress);
+
+            updateById(updateRecord);
+        }
+    }
 }