新增视频播放地址api

src/main/java/xyz/playedu/api/bus/UserBus.java

@@ -0,0 +1,40 @@
+package xyz.playedu.api.bus;
+
+import org.apache.commons.collections4.CollectionUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import xyz.playedu.api.domain.Course;
+import xyz.playedu.api.domain.CourseHour;
+import xyz.playedu.api.domain.User;
+import xyz.playedu.api.service.CourseService;
+import xyz.playedu.api.service.UserService;
+
+import java.util.List;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/20 14:56
+ */
+@Component
+public class UserBus {
+
+    @Autowired
+    private CourseService courseService;
+
+    @Autowired
+    private UserService userService;
+
+    public boolean canSeeCourse(User user, Course course) {
+        List<Integer> courseDepIds = courseService.getDepIdsByCourseId(course.getId());
+        if (courseDepIds == null || courseDepIds.size() == 0) {
+            //线上课无所属部门=>公开课=>任何学员都可以学习
+            return true;
+        }
+        List<Integer> userDepIds = userService.getDepIdsByUserId(user.getId());
+        if (userDepIds == null || userDepIds.size() == 0) {
+            return false;
+        }
+        return CollectionUtils.intersection(courseDepIds, userDepIds).size() > 0;
+    }
+
+}

src/main/java/xyz/playedu/api/caches/UserCanSeeCourseCache.java

@@ -0,0 +1,47 @@
+package xyz.playedu.api.caches;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import xyz.playedu.api.bus.UserBus;
+import xyz.playedu.api.domain.Course;
+import xyz.playedu.api.domain.User;
+import xyz.playedu.api.exception.ServiceException;
+import xyz.playedu.api.util.RedisUtil;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/20 15:20
+ */
+@Component
+public class UserCanSeeCourseCache {
+
+    @Autowired
+    private UserBus userBus;
+
+    private final static String keyTemplate = "c:%d-u:%d";
+
+    private final static int expire = 3600;//s
+
+    public boolean check(User user, Course course, boolean isThrow) throws ServiceException {
+        boolean result;
+        if (RedisUtil.exists(key(user, course))) {
+            result = "1".equals(RedisUtil.get(key(user, course)));
+        } else {
+            result = userBus.canSeeCourse(user, course);
+            put(user, course, result);
+        }
+        if (isThrow) {
+            throw new ServiceException("无权限观看");
+        }
+        return result;
+    }
+
+    public void put(User user, Course course, boolean result) {
+        RedisUtil.set(key(user, course), result ? "1" : "0", expire);
+    }
+
+    private String key(User user, Course course) {
+        return String.format(keyTemplate, course.getId(), user.getId());
+    }
+
+}

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

@@ -4,13 +4,17 @@ import org.apache.commons.collections4.MapUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 import xyz.playedu.api.domain.Course;
+import xyz.playedu.api.domain.CourseHour;
 import xyz.playedu.api.exception.NotFoundException;
+import xyz.playedu.api.service.CourseChapterService;
+import xyz.playedu.api.service.CourseHourService;
 import xyz.playedu.api.service.CourseService;
 import xyz.playedu.api.types.JsonResponse;
 import xyz.playedu.api.types.paginate.CoursePaginateFiler;
 import xyz.playedu.api.types.paginate.PaginationResult;
 
 import java.util.HashMap;
+import java.util.stream.Collectors;
 
 /**
  * @Author 杭州白书科技有限公司
@@ -23,6 +27,12 @@ public class CourseController {
     @Autowired
     private CourseService courseService;
 
+    @Autowired
+    private CourseChapterService chapterService;
+
+    @Autowired
+    private CourseHourService hourService;
+
     @GetMapping("/index")
     public JsonResponse index(@RequestParam HashMap<String, Object> params) {
         Integer page = MapUtils.getInteger(params, "page", 1);
@@ -41,12 +51,11 @@ public class CourseController {
     @GetMapping("/{id}")
     public JsonResponse detail(@PathVariable(name = "id") Integer id) throws NotFoundException {
         Course course = courseService.findOrFail(id);
-        if (course.getIsShow().equals(0)) {
-            throw new NotFoundException("课程不存在");
-        }
 
         HashMap<String, Object> data = new HashMap<>();
-        data.put("course", course);
+        data.put("course", course);//线上课
+        data.put("chapters", chapterService.getChaptersByCourseId(course.getId()));//章节
+        data.put("hours", hourService.getHoursByCourseId(course.getId()).stream().collect(Collectors.groupingBy(CourseHour::getChapterId)));//课时
 
         return JsonResponse.data(data);
     }

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

@@ -0,0 +1,62 @@
+package xyz.playedu.api.controller.frontend;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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.exception.NotFoundException;
+import xyz.playedu.api.exception.ServiceException;
+import xyz.playedu.api.service.CourseHourService;
+import xyz.playedu.api.service.CourseService;
+import xyz.playedu.api.service.ResourceService;
+import xyz.playedu.api.types.JsonResponse;
+
+import java.util.HashMap;
+
+/**
+ * @Author 杭州白书科技有限公司
+ * @create 2023/3/20 14:59
+ */
+@RestController
+@RequestMapping("/api/v1/course/{courseId}/hour")
+public class HourController {
+
+    @Autowired
+    private CourseService courseService;
+
+    @Autowired
+    private CourseHourService hourService;
+
+    @Autowired
+    private UserCanSeeCourseCache userCanSeeCourseCache;
+
+    @Autowired
+    private ResourceService resourceService;
+
+    @GetMapping("/{id}/play")
+    public JsonResponse play(@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);
+        Resource resource = resourceService.findOrFail(hour.getRid());
+
+        HashMap<String, Object> data = new HashMap<>();
+        data.put("url", resource.getUrl());//视频播放地址
+        data.put("extension", resource.getExtension());//视频格式
+        data.put("duration", resourceService.duration(resource.getId()));//视频时长
+
+        return JsonResponse.data(data);
+    }
+
+    @PostMapping("/{id}/record")
+    public JsonResponse record(@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/controller/frontend/UserController.java

@@ -49,6 +49,11 @@ public class UserController {
         return JsonResponse.data(data);
     }
 
+    @PutMapping("/avatar")
+    public JsonResponse changeAvatar() {
+        return JsonResponse.success();
+    }
+
     @PutMapping("/password")
     public JsonResponse changePassword(@RequestBody @Validated ChangePasswordRequest req) throws ServiceException {
         userService.passwordChange(PlayEduFCtx.getUser(), req.getOldPassword(), req.getNewPassword());

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

@@ -33,4 +33,6 @@ public interface ResourceService extends IService<Resource> {
     Map<Integer, Integer> getCategoryCount(String type);
 
     Integer total(String type);
+
+    Integer duration(Integer id);
 }

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

@@ -5,6 +5,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.transaction.annotation.Transactional;
 import xyz.playedu.api.domain.Resource;
 import xyz.playedu.api.domain.ResourceCategoryRelation;
+import xyz.playedu.api.domain.ResourceVideo;
 import xyz.playedu.api.exception.NotFoundException;
 import xyz.playedu.api.service.ResourceService;
 import xyz.playedu.api.mapper.ResourceMapper;
@@ -122,6 +123,15 @@ public class ResourceServiceImpl extends ServiceImpl<ResourceMapper, Resource> i
     public Integer total(String type) {
         return Math.toIntExact(count(query().getWrapper().eq("type", type).eq("is_hidden", 0)));
     }
+
+    @Override
+    public Integer duration(Integer id) {
+        ResourceVideo resourceVideo = resourceVideoService.getOne(resourceVideoService.query().getWrapper().eq("rid", id));
+        if (resourceVideo == null) {
+            return null;
+        }
+        return resourceVideo.getDuration();
+    }
 }