feat: manage teachers from platform admin

src/main/java/com/sztzjy/linkCommerce/controller/platformadmin/PlatformAdminController.java

@@ -106,9 +106,9 @@ public class PlatformAdminController {
         return writeResult(count, "删除成功", "删除失败");
     }
 
-    @GetMapping("/school-admins")
-    @ApiOperation("平台超管-学校管理员列表")
-    public ResultEntity<PageInfo<Userinfo>> listSchoolAdmins(@RequestParam Integer index,
+    @GetMapping({"/teachers", "/school-admins"})
+    @ApiOperation("平台超管-教师列表")
+    public ResultEntity<PageInfo<Userinfo>> listTeachers(@RequestParam Integer index,
                                                          @RequestParam Integer size,
                                                          @RequestParam(required = false) String schoolId,
                                                          @RequestParam(required = false) String name,
@@ -119,7 +119,7 @@ public class PlatformAdminController {
         PageHelper.startPage(index, size);
         UserinfoExample example = new UserinfoExample();
         UserinfoExample.Criteria criteria = example.createCriteria();
-        criteria.andRoleEqualTo(2);
+        criteria.andRoleEqualTo(3);
         if (StringUtils.isNotBlank(schoolId)) {
             criteria.andSchoolIdEqualTo(schoolId);
         }
@@ -136,55 +136,56 @@ public class PlatformAdminController {
         return new ResultEntity<>(HttpStatus.OK, "查询成功", new PageInfo<>(userinfoMapper.selectByExample(example)));
     }
 
-    @GetMapping("/school-admins/{id}")
-    @ApiOperation("平台超管-学校管理员详情")
-    public ResultEntity<Userinfo> getSchoolAdmin(@PathVariable String id, HttpServletRequest request) {
+    @GetMapping({"/teachers/{id}", "/school-admins/{id}"})
+    @ApiOperation("平台超管-教师详情")
+    public ResultEntity<Userinfo> getTeacher(@PathVariable String id, HttpServletRequest request) {
         requirePlatformAdmin(request);
-        return new ResultEntity<>(HttpStatus.OK, "查询成功", requireSchoolAdminUser(id));
+        return new ResultEntity<>(HttpStatus.OK, "查询成功", requireTeacherUser(id));
     }
 
-    @PostMapping("/school-admins")
-    @ApiOperation("平台超管-新增学校管理员")
-    public ResultEntity addSchoolAdmin(@RequestBody Userinfo schoolAdmin, HttpServletRequest request) {
+    @PostMapping({"/teachers", "/school-admins"})
+    @ApiOperation("平台超管-新增教师")
+    public ResultEntity addTeacher(@RequestBody Userinfo teacher, HttpServletRequest request) {
         requirePlatformAdmin(request);
-        if (StringUtils.isBlank(schoolAdmin.getUsername()) || StringUtils.isBlank(schoolAdmin.getName())) {
-            return new ResultEntity<>(HttpStatus.BAD_REQUEST, "学校管理员姓名和账号不能为空");
+        if (StringUtils.isBlank(teacher.getUsername()) || StringUtils.isBlank(teacher.getName())) {
+            return new ResultEntity<>(HttpStatus.BAD_REQUEST, "教师姓名和账号不能为空");
         }
-        String schoolId = platformAdminService.requireSchoolId(schoolAdmin.getSchoolId());
+        String schoolId = platformAdminService.requireSchoolId(teacher.getSchoolId());
         requireSchool(schoolId);
-        if (userInfoService.existsByUserName(schoolAdmin.getUsername())) {
+        if (userInfoService.existsByUserName(teacher.getUsername())) {
             return new ResultEntity<>(HttpStatus.BAD_REQUEST, "账号已存在");
         }
-        schoolAdmin.setUserId(UUID.randomUUID().toString());
-        if (StringUtils.isBlank(schoolAdmin.getPassword())) {
-            schoolAdmin.setPassword("123qwe");
+        teacher.setUserId(UUID.randomUUID().toString());
+        if (StringUtils.isBlank(teacher.getPassword())) {
+            teacher.setPassword("123qwe");
         }
-        schoolAdmin.setCreateTime(new Date());
-        platformAdminService.prepareSchoolAdminForSave(schoolAdmin, schoolId);
-        int count = userinfoMapper.insertSelective(schoolAdmin);
+        teacher.setCreateTime(new Date());
+        platformAdminService.prepareTeacherForSave(teacher, schoolId);
+        int count = userinfoMapper.insertSelective(teacher);
         return writeResult(count, "新增成功", "新增失败");
     }
 
-    @PutMapping("/school-admins/{id}")
-    @ApiOperation("平台超管-编辑学校管理员")
-    public ResultEntity updateSchoolAdmin(@PathVariable String id,
-                                          @RequestBody Userinfo schoolAdmin,
+    @PutMapping({"/teachers/{id}", "/school-admins/{id}"})
+    @ApiOperation("平台超管-编辑教师")
+    public ResultEntity updateTeacher(@PathVariable String id,
+                                      @RequestBody Userinfo teacher,
                                       HttpServletRequest request) {
         requirePlatformAdmin(request);
-        requireSchoolAdminUser(id);
-        String schoolId = platformAdminService.requireSchoolId(schoolAdmin.getSchoolId());
+        requireTeacherUser(id);
+        String schoolId = platformAdminService.requireSchoolId(teacher.getSchoolId());
         requireSchool(schoolId);
-        schoolAdmin.setUserId(id);
-        platformAdminService.prepareSchoolAdminForSave(schoolAdmin, schoolId);
-        int count = userinfoMapper.updateByPrimaryKeySelective(schoolAdmin);
+        teacher.setUserId(id);
+        platformAdminService.prepareTeacherForSave(teacher, schoolId);
+        int count = userinfoMapper.updateByPrimaryKeySelective(teacher);
         return writeResult(count, "编辑成功", "编辑失败");
     }
 
-    @DeleteMapping("/school-admins/{id}")
-    @ApiOperation("平台超管-删除学校管理员")
-    public ResultEntity deleteSchoolAdmin(@PathVariable String id, HttpServletRequest request) {
+    @DeleteMapping({"/teachers/{id}", "/school-admins/{id}"})
+    @ApiOperation("平台超管-删除教师")
+    public ResultEntity deleteTeacher(@PathVariable String id, HttpServletRequest request) {
         requirePlatformAdmin(request);
-        requireSchoolAdminUser(id);
+        requireTeacherUser(id);
+        platformAdminService.assertTeacherCanBeDeleted(countClassesCreatedBy(id));
         int count = userinfoMapper.deleteByPrimaryKey(id);
         return writeResult(count, "删除成功", "删除失败");
     }
@@ -205,17 +206,23 @@ public class PlatformAdminController {
         return school;
     }
 
-    private Userinfo requireSchoolAdminUser(String userId) {
+    private Userinfo requireTeacherUser(String userId) {
         if (StringUtils.isBlank(userId)) {
             throw new IllegalArgumentException("用户ID不能为空");
         }
         Userinfo userinfo = userinfoMapper.selectByPrimaryKey(userId);
-        if (userinfo == null || !Integer.valueOf(2).equals(userinfo.getRole())) {
-            throw new IllegalArgumentException("学校管理员不存在");
+        if (userinfo == null || !Integer.valueOf(3).equals(userinfo.getRole())) {
+            throw new IllegalArgumentException("教师不存在");
         }
         return userinfo;
     }
 
+    private long countClassesCreatedBy(String teacherId) {
+        SchoolClassExample example = new SchoolClassExample();
+        example.createCriteria().andCreatedByEqualTo(teacherId);
+        return schoolClassMapper.countByExample(example);
+    }
+
     private ResultEntity writeResult(int count, String success, String fail) {
         if (count > 0) {
             return new ResultEntity<>(HttpStatus.OK, success);

src/main/java/com/sztzjy/linkCommerce/service/PlatformAdminService.java

@@ -8,5 +8,9 @@ public interface PlatformAdminService {
 
     void prepareSchoolAdminForSave(Userinfo userinfo, String schoolId);
 
+    void prepareTeacherForSave(Userinfo userinfo, String schoolId);
+
+    void assertTeacherCanBeDeleted(long createdClassCount);
+
     String requireSchoolId(String schoolId);
 }

src/main/java/com/sztzjy/linkCommerce/service/impl/PlatformAdminServiceImpl.java

@@ -22,6 +22,22 @@ public class PlatformAdminServiceImpl implements PlatformAdminService {
         userinfo.setRole(2);
     }
 
+    @Override
+    public void prepareTeacherForSave(Userinfo userinfo, String schoolId) {
+        userinfo.setSchoolId(requireSchoolId(schoolId));
+        userinfo.setRole(3);
+        if (userinfo.getTeacherAdmin() == null) {
+            userinfo.setTeacherAdmin(false);
+        }
+    }
+
+    @Override
+    public void assertTeacherCanBeDeleted(long createdClassCount) {
+        if (createdClassCount > 0) {
+            throw new IllegalArgumentException("Teacher has created classes and cannot be deleted");
+        }
+    }
+
     @Override
     public String requireSchoolId(String schoolId) {
         if (StringUtils.isBlank(schoolId)) {

src/test/java/com/sztzjy/linkCommerce/controller/platformadmin/PlatformAdminControllerTest.java

@@ -0,0 +1,47 @@
+package com.sztzjy.linkCommerce.controller.platformadmin;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+
+import java.util.Arrays;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+class PlatformAdminControllerTest {
+
+    @Test
+    void exposesPlatformTeacherManagementEndpoints() {
+        assertTrue(hasGet("/teachers"), "Platform admin must expose teacher list endpoint");
+        assertTrue(hasGet("/teachers/{id}"), "Platform admin must expose teacher detail endpoint");
+        assertTrue(hasPost("/teachers"), "Platform admin must expose teacher create endpoint");
+        assertTrue(hasPut("/teachers/{id}"), "Platform admin must expose teacher update endpoint");
+        assertTrue(hasDelete("/teachers/{id}"), "Platform admin must expose teacher delete endpoint");
+    }
+
+    private boolean hasGet(String path) {
+        return Arrays.stream(PlatformAdminController.class.getDeclaredMethods())
+                .anyMatch(method -> method.isAnnotationPresent(GetMapping.class)
+                        && Arrays.asList(method.getAnnotation(GetMapping.class).value()).contains(path));
+    }
+
+    private boolean hasPost(String path) {
+        return Arrays.stream(PlatformAdminController.class.getDeclaredMethods())
+                .anyMatch(method -> method.isAnnotationPresent(PostMapping.class)
+                        && Arrays.asList(method.getAnnotation(PostMapping.class).value()).contains(path));
+    }
+
+    private boolean hasPut(String path) {
+        return Arrays.stream(PlatformAdminController.class.getDeclaredMethods())
+                .anyMatch(method -> method.isAnnotationPresent(PutMapping.class)
+                        && Arrays.asList(method.getAnnotation(PutMapping.class).value()).contains(path));
+    }
+
+    private boolean hasDelete(String path) {
+        return Arrays.stream(PlatformAdminController.class.getDeclaredMethods())
+                .anyMatch(method -> method.isAnnotationPresent(DeleteMapping.class)
+                        && Arrays.asList(method.getAnnotation(DeleteMapping.class).value()).contains(path));
+    }
+}

src/test/java/com/sztzjy/linkCommerce/service/impl/PlatformAdminServiceImplTest.java

@@ -6,7 +6,9 @@ import com.sztzjy.linkCommerce.entity.Userinfo;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 class PlatformAdminServiceImplTest {
     @Test
@@ -47,4 +49,36 @@ class PlatformAdminServiceImplTest {
 
         assertThrows(IllegalArgumentException.class, () -> service.prepareSchoolAdminForSave(userinfo, " "));
     }
+
+    @Test
+    void prepareTeacherForSaveForcesTeacherRoleAndKeepsTeacherAdminFlag() {
+        PlatformAdminServiceImpl service = new PlatformAdminServiceImpl();
+        Userinfo userinfo = new Userinfo();
+        userinfo.setRole(1);
+        userinfo.setSchoolId("other-school");
+        userinfo.setTeacherAdmin(true);
+
+        service.prepareTeacherForSave(userinfo, "school-uuid-1");
+
+        assertEquals(3, userinfo.getRole());
+        assertEquals("school-uuid-1", userinfo.getSchoolId());
+        assertTrue(userinfo.getTeacherAdmin());
+    }
+
+    @Test
+    void prepareTeacherForSaveDefaultsTeacherAdminFalse() {
+        PlatformAdminServiceImpl service = new PlatformAdminServiceImpl();
+        Userinfo userinfo = new Userinfo();
+
+        service.prepareTeacherForSave(userinfo, "school-uuid-1");
+
+        assertFalse(userinfo.getTeacherAdmin());
+    }
+
+    @Test
+    void assertTeacherCanBeDeletedRejectsTeachersWithCreatedClasses() {
+        PlatformAdminServiceImpl service = new PlatformAdminServiceImpl();
+
+        assertThrows(IllegalArgumentException.class, () -> service.assertTeacherCanBeDeleted(1));
+    }
 }