diff --git a/app/Console/Tasks/LearningTask.php b/app/Console/Tasks/SyncLearningTask.php
similarity index 93%
rename from app/Console/Tasks/LearningTask.php
rename to app/Console/Tasks/SyncLearningTask.php
index 0079b2a8..b9e79800 100644
--- a/app/Console/Tasks/LearningTask.php
+++ b/app/Console/Tasks/SyncLearningTask.php
@@ -13,7 +13,7 @@ use App\Repos\Learning as LearningRepo;
 use App\Services\Syncer\Learning as LearningSyncer;
 use Phalcon\Cli\Task;
 
-class LearningTask extends Task
+class SyncLearningTask extends Task
 {
 
     /**
@@ -69,7 +69,8 @@ class LearningTask extends Task
         if (!$dbLearning) {
             $cacheLearning->create();
         } else {
-            $dbLearning->duration += $cacheLearning->duration;
+            $dbLearning->duration = $cacheLearning->duration;
+            $dbLearning->position = $cacheLearning->position;
             $dbLearning->update();
         }
 
@@ -138,6 +139,12 @@ class LearningTask extends Task
      */
     protected function updateCourseUser($courseId, $userId)
     {
+        $courseUserRepo = new CourseUserRepo();
+
+        $courseUser = $courseUserRepo->findCourseUser($courseId, $userId);
+
+        if (!$courseUser) return;
+
         $courseRepo = new CourseRepo();
 
         $courseLessons = $courseRepo->findLessons($courseId);
@@ -166,15 +173,9 @@ class LearningTask extends Task
         $consumedCount = count($consumedLessonIds);
         $progress = intval(100 * $consumedCount / $totalCount);
 
-        $courseUserRepo = new CourseUserRepo();
-
-        $courseUser = $courseUserRepo->findCourseUser($courseId, $userId);
-
-        if ($courseUser) {
-            $courseUser->progress = $progress;
-            $courseUser->duration = $duration;
-            $courseUser->update();
-        }
+        $courseUser->progress = $progress;
+        $courseUser->duration = $duration;
+        $courseUser->update();
     }
 
 }
diff --git a/app/Http/Admin/Controllers/TestController.php b/app/Http/Admin/Controllers/TestController.php
index 474545c6..19bc59e2 100644
--- a/app/Http/Admin/Controllers/TestController.php
+++ b/app/Http/Admin/Controllers/TestController.php
@@ -64,7 +64,7 @@ class TestController extends Controller
     }
 
     /**
-     * @Get("/live/push", name="admin.test.live.push")
+     * @Get("/live/push", name="admin.test.live_push")
      */
     public function livePushAction()
     {
@@ -89,7 +89,7 @@ class TestController extends Controller
     }
 
     /**
-     * @Get("/live/pull", name="admin.test.live.pull")
+     * @Get("/live/pull", name="admin.test.live_pull")
      */
     public function livePullAction()
     {
@@ -190,7 +190,7 @@ class TestController extends Controller
     }
 
     /**
-     * @Post("/alipay/status", name="admin.test.alipay.status")
+     * @Post("/alipay/status", name="admin.test.alipay_status")
      */
     public function alipayStatusAction()
     {
@@ -204,7 +204,7 @@ class TestController extends Controller
     }
 
     /**
-     * @Post("/alipay/cancel", name="admin.test.alipay.cancel")
+     * @Post("/alipay/cancel", name="admin.test.alipay_cancel")
      */
     public function alipayCancelAction()
     {
@@ -242,7 +242,7 @@ class TestController extends Controller
     }
 
     /**
-     * @Post("/wxpay/status", name="admin.test.wxpay.status")
+     * @Post("/wxpay/status", name="admin.test.wxpay_status")
      */
     public function wxpayStatusAction()
     {
@@ -256,7 +256,7 @@ class TestController extends Controller
     }
 
     /**
-     * @Post("/wxpay/cancel", name="admin.test.wxpay.cancel")
+     * @Post("/wxpay/cancel", name="admin.test.wxpay_cancel")
      */
     public function wxpayCancelAction()
     {
diff --git a/app/Http/Admin/Controllers/VodController.php b/app/Http/Admin/Controllers/VodController.php
index a2da513d..0a81bbf9 100644
--- a/app/Http/Admin/Controllers/VodController.php
+++ b/app/Http/Admin/Controllers/VodController.php
@@ -2,8 +2,6 @@
 
 namespace App\Http\Admin\Controllers;
 
-use App\Models\Learning as LearningModel;
-use App\Services\LearningSyncer as LearningSyncerService;
 use App\Services\Vod as VodService;
 use Phalcon\Mvc\View;
 
@@ -14,7 +12,7 @@ class VodController extends Controller
 {
 
     /**
-     * @Post("/upload/signature", name="admin.vod.upload.signature")
+     * @Post("/upload/signature", name="admin.vod.upload_signature")
      */
     public function uploadSignatureAction()
     {
@@ -39,25 +37,4 @@ class VodController extends Controller
         $this->view->setVar('play_url', urldecode($playUrl));
     }
 
-    /**
-     * @Get("/learning", name="admin.vod.learning")
-     */
-    public function learningAction()
-    {
-        $query = $this->request->getQuery();
-
-        $learning = new LearningModel();
-
-        $learning->user_id = $this->authUser->id;
-        $learning->request_id = $query['request_id'];
-        $learning->chapter_id = $query['chapter_id'];
-        $learning->position = $query['position'];
-
-        $syncerService = new LearningSyncerService();
-
-        $syncerService->addItem($learning, $query['timeout']);
-
-        return $this->jsonSuccess();
-    }
-
 }
diff --git a/app/Http/Admin/Views/public/vod_player.volt b/app/Http/Admin/Views/public/vod_player.volt
index b44d0f9e..4a793e8a 100644
--- a/app/Http/Admin/Views/public/vod_player.volt
+++ b/app/Http/Admin/Views/public/vod_player.volt
@@ -22,8 +22,8 @@
 <script>
 
     var interval = null;
-    var timeout = 5000;
-    var requestId = uniqueId();
+    var intervalTime = 5000;
+    var requestId = getRequestId();
     var chapterId = '{{ chapter_id }}';
     var playUrl = '{{ play_url }}';
     var position = 0;
@@ -53,7 +53,7 @@
             clearInterval(interval);
             interval = null;
         }
-        interval = setInterval(learning, timeout);
+        interval = setInterval(learning, intervalTime);
     }
 
     function stop() {
@@ -68,13 +68,13 @@
             data: {
                 request_id: requestId,
                 chapter_id: chapterId,
-                timeout: timeout,
+                interval: intervalTime,
                 position: player.currentTime(),
             }
         });
     }
 
-    function uniqueId() {
+    function getRequestId() {
         var id = Date.now().toString(36);
         id += Math.random().toString(36).substr(3);
         return id;
diff --git a/app/Http/Admin/Views/student/learning.volt b/app/Http/Admin/Views/student/learning.volt
index 7fdd2f74..b6db1f85 100644
--- a/app/Http/Admin/Views/student/learning.volt
+++ b/app/Http/Admin/Views/student/learning.volt
@@ -1,11 +1,3 @@
-{%- macro client_type(value) %}
-    {% if value == 'desktop' %}
-        <span class="layui-badge layui-bg-green">桌面端</span>
-    {% elseif value == 'mobile' %}
-        <span class="layui-badge layui-bg-blue">手机端</span>
-    {% endif %}
-{%- endmacro %}
-
 {%- macro last_active_time(create_time, update_time) %}
     {% if update_time > 0 %}
         {{ date('Y-m-d H:i', update_time) }}
@@ -39,7 +31,7 @@
                 <p>章节：{{ item.chapter.title }}</p>
             </td>
             <td>{{ item.duration|play_duration }}</td>
-            <td>{{ client_type(item.client_type) }}</td>
+            <td>{{ item.client_type }}</td>
             <td><a href="javascript:" class="kg-ip2region" title="查看位置" data-ip="{{ item.client_ip }}">{{ item.client_ip }}</a></td>
             <td>{{ last_active_time(item.create_time,item.update_time) }}</td>
         </tr>
diff --git a/app/Http/Admin/Views/student/list.volt b/app/Http/Admin/Views/student/list.volt
index 19e2c735..b9906304 100644
--- a/app/Http/Admin/Views/student/list.volt
+++ b/app/Http/Admin/Views/student/list.volt
@@ -55,7 +55,7 @@
     {% for item in pager.items %}
         <tr>
             <td>
-                <p>课程：<a href="{{ url({'for':'admin.student.list'},{'course_id':item.course.id}) }}">{{ item.course.title }}</a></p>
+                <p>课程：<a href="{{ url({'for':'admin.student.list'},{'course_id':item.course.id}) }}">{{ item.course.title }}（{{ item.course.id }}）</a></p>
                 <p>学员：<a href="{{ url({'for':'admin.student.list'},{'user_id':item.user_id}) }}">{{ item.user.name }}（{{ item.user.id }}）</a></p>
             </td>
             <td>
diff --git a/app/Http/Web/Controllers/AccountController.php b/app/Http/Web/Controllers/AccountController.php
index cfe4737a..18c1c60e 100644
--- a/app/Http/Web/Controllers/AccountController.php
+++ b/app/Http/Web/Controllers/AccountController.php
@@ -43,117 +43,92 @@ class AccountController extends Controller
     }
 
     /**
-     * @Get("/password/reset", name="web.account.reset_password")
+     * @Get("/password/reset", name="web.account.reset_pwd")
      */
     public function resetPasswordAction()
     {
-        if ($this->request->isPost()) {
 
-            $service = new PasswordResetService();
-
-            $service->handle();
-
-            return $this->jsonSuccess(['msg' => '重置密码成功']);
-        }
     }
 
     /**
-     * @Post("/register_by_phone", name="web.account.register_by_phone")
+     * @Post("/phone/register", name="web.account.register_by_phone")
      */
     public function registerByPhoneAction()
     {
-        if ($this->request->isPost()) {
+        $service = new AccountService();
 
-            $service = new AccountService();
+        $service->registerByPhone();
 
-            $service->registerByPhone();
+        $content = [
+            'location' => $this->request->getHTTPReferer(),
+            'msg' => '注册账户成功',
+        ];
 
-            $content = [
-                'location' => $this->request->getHTTPReferer(),
-                'msg' => '注册账户成功',
-            ];
-
-            return $this->jsonSuccess($content);
-        }
+        return $this->jsonSuccess($content);
     }
 
     /**
-     * @Post("/register_by_email", name="web.account.register_by_email")
+     * @Post("/email/register", name="web.account.register_by_email")
      */
     public function registerByEmailAction()
     {
-        if ($this->request->isPost()) {
+        $service = new AccountService();
 
-            $service = new AccountService();
+        $service->registerByPhone();
 
-            $service->registerByPhone();
+        $content = [
+            'msg' => '注册账户成功',
+        ];
 
-            $content = [
-                'msg' => '注册账户成功',
-            ];
-
-            return $this->jsonSuccess($content);
-        }
+        return $this->jsonSuccess($content);
     }
 
     /**
-     * @Post("/login_by_pwd", name="web.account.login_by_pwd")
+     * @Post("/password/login", name="web.account.login_by_pwd")
      */
     public function loginByPasswordAction()
     {
-        if ($this->request->isPost()) {
+        $service = new AccountService();
 
-            $service = new AccountService();
+        $service->loginByPassword();
 
-            $service->loginByPassword();
-
-            return $this->jsonSuccess();
-        }
+        return $this->jsonSuccess();
     }
 
     /**
-     * @Post("/login_by_verify", name="web.account.login_by_verify")
+     * @Post("/verify/login", name="web.account.login_by_verify")
      */
     public function loginByVerifyAction()
     {
-        if ($this->request->isPost()) {
+        $service = new AccountService();
 
-            $service = new AccountService();
+        $service->loginByVerify();
 
-            $service->loginByVerify();
-
-            return $this->jsonSuccess();
-        }
+        return $this->jsonSuccess();
     }
 
     /**
-     * @Post("/password/reset_by_email", name="web.account.reset_pwd_by_email")
+     * @Post("/password/email/reset", name="web.account.reset_pwd_by_email")
      */
     public function resetPasswordByEmailAction()
     {
-        if ($this->request->isPost()) {
+        $service = new PasswordResetService();
 
-            $service = new PasswordResetService();
+        $service->handle();
 
-            $service->handle();
-
-            return $this->jsonSuccess(['msg' => '重置密码成功']);
-        }
+        return $this->jsonSuccess(['msg' => '重置密码成功']);
     }
 
     /**
-     * @Post("/password/reset_by_phone", name="web.account.reset_pwd_by_phone")
+     * @Post("/password/phone/reset", name="web.account.reset_pwd_by_phone")
      */
     public function resetPasswordByPhoneAction()
     {
-        if ($this->request->isPost()) {
+        $service = new PasswordResetService();
 
-            $service = new PasswordResetService();
+        $service->handle();
 
-            $service->handle();
-
-            return $this->jsonSuccess(['msg' => '重置密码成功']);
-        }
+        return $this->jsonSuccess(['msg' => '重置密码成功']);
     }
 
     /**
diff --git a/app/Http/Web/Controllers/ChapterController.php b/app/Http/Web/Controllers/ChapterController.php
index c28f8bd1..8cc265e5 100644
--- a/app/Http/Web/Controllers/ChapterController.php
+++ b/app/Http/Web/Controllers/ChapterController.php
@@ -5,6 +5,7 @@ namespace App\Http\Web\Controllers;
 use App\Services\Frontend\Chapter\AgreeVote as ChapterAgreeVoteService;
 use App\Services\Frontend\Chapter\ChapterInfo as ChapterInfoService;
 use App\Services\Frontend\Chapter\CommentList as ChapterCommentListService;
+use App\Services\Frontend\Chapter\Learning as ChapterLearningService;
 use App\Services\Frontend\Chapter\OpposeVote as ChapterOpposeVoteService;
 
 /**
@@ -61,4 +62,16 @@ class ChapterController extends Controller
         return $this->jsonSuccess();
     }
 
+    /**
+     * @Post("/{id:[0-9]+}/learning", name="web.chapter.learning")
+     */
+    public function learningAction($id)
+    {
+        $service = new ChapterLearningService();
+
+        $service->handle($id);
+
+        return $this->jsonSuccess();
+    }
+
 }
diff --git a/app/Models/Learning.php b/app/Models/Learning.php
index 8098f922..01b955e0 100644
--- a/app/Models/Learning.php
+++ b/app/Models/Learning.php
@@ -10,6 +10,8 @@ class Learning extends Model
      */
     const CLIENT_DESKTOP = 'desktop';
     const CLIENT_MOBILE = 'mobile';
+    const CLIENT_APP = 'app';
+    const CLIENT_MINI = 'mini';
 
     /**
      * 主键编号
diff --git a/app/Models/Order.php b/app/Models/Order.php
index 7370daea..ef5d20df 100644
--- a/app/Models/Order.php
+++ b/app/Models/Order.php
@@ -17,11 +17,12 @@ class Order extends Model
     const ITEM_TEST = 'test'; // 测试
 
     /**
-     * 来源类型
+     * 终端类型
      */
-    const SOURCE_WEB = 'web';
-    const SOURCE_WAP = 'wap';
-    const SOURCE_APP = 'app';
+    const CLIENT_DESKTOP = 'desktop';
+    const CLIENT_MOBILE = 'mobile';
+    const CLIENT_APP = 'app';
+    const CLIENT_MINI = 'mini';
 
     /**
      * 状态类型
@@ -95,11 +96,18 @@ class Order extends Model
     public $coupon_info;
 
     /**
-     * 来源类型
+     * 终端类型
      *
      * @var string
      */
-    public $source_type;
+    public $client_type;
+
+    /**
+     * 终端IP
+     *
+     * @var string
+     */
+    public $client_ip;
 
     /**
      * 状态类型
@@ -200,12 +208,13 @@ class Order extends Model
         ];
     }
 
-    public static function sourceTypes()
+    public static function clientTypes()
     {
         return [
-            self::SOURCE_WEB => 'web',
-            self::SOURCE_WAP => 'wap',
-            self::SOURCE_APP => 'app',
+            self::CLIENT_DESKTOP => 'desktop',
+            self::CLIENT_MOBILE => 'mobile',
+            self::CLIENT_APP => 'app',
+            self::CLIENT_MINI => 'mini',
         ];
     }
 
diff --git a/app/Services/Frontend/Account/EmailUpdate.php b/app/Services/Frontend/Account/EmailUpdate.php
index 01fa1534..ae61e9e0 100644
--- a/app/Services/Frontend/Account/EmailUpdate.php
+++ b/app/Services/Frontend/Account/EmailUpdate.php
@@ -3,11 +3,11 @@
 namespace App\Services\Frontend\Account;
 
 use App\Repos\Account as AccountRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class EmailUpdate extends Service
+class EmailUpdate extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/PasswordReset.php b/app/Services/Frontend/Account/PasswordReset.php
index 307dd839..5bb0f853 100644
--- a/app/Services/Frontend/Account/PasswordReset.php
+++ b/app/Services/Frontend/Account/PasswordReset.php
@@ -2,11 +2,11 @@
 
 namespace App\Services\Frontend\Account;
 
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class PasswordReset extends Service
+class PasswordReset extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/PasswordResetByEmail.php b/app/Services/Frontend/Account/PasswordResetByEmail.php
index 5d1fb4c7..367b60ac 100644
--- a/app/Services/Frontend/Account/PasswordResetByEmail.php
+++ b/app/Services/Frontend/Account/PasswordResetByEmail.php
@@ -2,11 +2,11 @@
 
 namespace App\Services\Frontend\Account;
 
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class PasswordResetByEmail extends Service
+class PasswordResetByEmail extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/PasswordResetByPhone.php b/app/Services/Frontend/Account/PasswordResetByPhone.php
index 0a41fb5a..69f2f038 100644
--- a/app/Services/Frontend/Account/PasswordResetByPhone.php
+++ b/app/Services/Frontend/Account/PasswordResetByPhone.php
@@ -2,11 +2,11 @@
 
 namespace App\Services\Frontend\Account;
 
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class PasswordResetByPhone extends Service
+class PasswordResetByPhone extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/PasswordUpdate.php b/app/Services/Frontend/Account/PasswordUpdate.php
index b96e185f..7211e4d6 100644
--- a/app/Services/Frontend/Account/PasswordUpdate.php
+++ b/app/Services/Frontend/Account/PasswordUpdate.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Account;
 
 use App\Repos\Account as AccountRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 
-class PasswordUpdate extends Service
+class PasswordUpdate extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/PhoneUpdate.php b/app/Services/Frontend/Account/PhoneUpdate.php
index 9e69ef96..947191ae 100644
--- a/app/Services/Frontend/Account/PhoneUpdate.php
+++ b/app/Services/Frontend/Account/PhoneUpdate.php
@@ -3,11 +3,11 @@
 namespace App\Services\Frontend\Account;
 
 use App\Repos\Account as AccountRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class PhoneUpdate extends Service
+class PhoneUpdate extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/RegisterByEmail.php b/app/Services/Frontend/Account/RegisterByEmail.php
index 09c75ecd..4d48cebe 100644
--- a/app/Services/Frontend/Account/RegisterByEmail.php
+++ b/app/Services/Frontend/Account/RegisterByEmail.php
@@ -4,11 +4,11 @@ namespace App\Services\Frontend\Account;
 
 use App\Models\Account as AccountModel;
 use App\Repos\User as UserRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class RegisterByEmail extends Service
+class RegisterByEmail extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Account/RegisterByPhone.php b/app/Services/Frontend/Account/RegisterByPhone.php
index 67eace39..6d88f854 100644
--- a/app/Services/Frontend/Account/RegisterByPhone.php
+++ b/app/Services/Frontend/Account/RegisterByPhone.php
@@ -4,11 +4,11 @@ namespace App\Services\Frontend\Account;
 
 use App\Models\Account as AccountModel;
 use App\Repos\User as UserRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Account as AccountValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class RegisterByPhone extends Service
+class RegisterByPhone extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Chapter/AgreeVote.php b/app/Services/Frontend/Chapter/AgreeVote.php
index 68de2b3a..abe04d95 100644
--- a/app/Services/Frontend/Chapter/AgreeVote.php
+++ b/app/Services/Frontend/Chapter/AgreeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Chapter;
 use App\Models\ChapterVote as ChapterVoteModel;
 use App\Repos\ChapterVote as ChapterVoteRepo;
 use App\Services\Frontend\ChapterTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class AgreeVote extends Service
+class AgreeVote extends FrontendService
 {
 
     use ChapterTrait, VoteTrait;
diff --git a/app/Services/Frontend/Chapter/ChapterInfo.php b/app/Services/Frontend/Chapter/ChapterInfo.php
index fec7afa9..b7228dbf 100644
--- a/app/Services/Frontend/Chapter/ChapterInfo.php
+++ b/app/Services/Frontend/Chapter/ChapterInfo.php
@@ -13,11 +13,11 @@ use App\Repos\ChapterVote as ChapterVoteRepo;
 use App\Services\ChapterVod as ChapterVodService;
 use App\Services\Frontend\ChapterTrait;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Live as LiveService;
 use WhichBrowser\Parser as BrowserParser;
 
-class ChapterInfo extends Service
+class ChapterInfo extends FrontendService
 {
 
     /**
diff --git a/app/Services/Frontend/Chapter/CommentList.php b/app/Services/Frontend/Chapter/CommentList.php
index 246fd09c..ffbd9c42 100644
--- a/app/Services/Frontend/Chapter/CommentList.php
+++ b/app/Services/Frontend/Chapter/CommentList.php
@@ -10,9 +10,9 @@ use App\Models\User as UserModel;
 use App\Repos\Chapter as ChapterRepo;
 use App\Repos\Comment as CommentRepo;
 use App\Services\Frontend\ChapterTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class CommentList extends Service
+class CommentList extends FrontendService
 {
 
     /**
diff --git a/app/Services/Frontend/Chapter/Learning.php b/app/Services/Frontend/Chapter/Learning.php
new file mode 100644
index 00000000..50e8fb94
--- /dev/null
+++ b/app/Services/Frontend/Chapter/Learning.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace App\Services\Frontend\Chapter;
+
+use App\Models\Course as CourseModel;
+use App\Models\Learning as LearningModel;
+use App\Services\Frontend\ChapterTrait;
+use App\Services\Frontend\Service as FrontendService;
+use App\Services\Syncer\Learning as LearningSyncerService;
+use App\Validators\Learning as LearningValidator;
+
+class Learning extends FrontendService
+{
+
+    use ChapterTrait;
+
+    public function handle($id)
+    {
+        $chapter = $this->checkChapterCache($id);
+
+        $user = $this->getCurrentUser();
+
+        $post = $this->request->getPost();
+
+        if ($user->id == 0) return;
+
+        $validator = new LearningValidator();
+
+        $data = [
+            'chapter_id' => $chapter->id,
+            'user_id' => $user->id,
+        ];
+
+        $data['request_id'] = $validator->checkRequestId($post['request_id']);
+
+        /**
+         * @var array $attrs
+         */
+        $attrs = $chapter->attrs;
+
+        if ($attrs['model'] == CourseModel::MODEL_VOD) {
+            $data['position'] = $validator->checkPosition($post['position']);
+        }
+
+        $interval = $validator->checkInterval($post['interval']);
+
+        $learning = new LearningModel($data);
+
+        $syncer = new LearningSyncerService();
+
+        $syncer->addItem($learning, $interval);
+    }
+
+}
\ No newline at end of file
diff --git a/app/Services/Frontend/Chapter/OpposeVote.php b/app/Services/Frontend/Chapter/OpposeVote.php
index ac1d91bc..0b389bff 100644
--- a/app/Services/Frontend/Chapter/OpposeVote.php
+++ b/app/Services/Frontend/Chapter/OpposeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Chapter;
 use App\Models\ChapterVote as ChapterVoteModel;
 use App\Repos\ChapterVote as ChapterVoteRepo;
 use App\Services\Frontend\ChapterTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class OpposeVote extends Service
+class OpposeVote extends FrontendService
 {
 
     use ChapterTrait, VoteTrait;
diff --git a/app/Services/Frontend/Comment/AgreeVote.php b/app/Services/Frontend/Comment/AgreeVote.php
index ea3fa5d2..0e176142 100644
--- a/app/Services/Frontend/Comment/AgreeVote.php
+++ b/app/Services/Frontend/Comment/AgreeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Comment;
 use App\Models\CommentVote as CommentVoteModel;
 use App\Repos\CommentVote as CommentVoteRepo;
 use App\Services\Frontend\CommentTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class AgreeVote extends Service
+class AgreeVote extends FrontendService
 {
 
     use CommentTrait, VoteTrait;
diff --git a/app/Services/Frontend/Comment/CommentCreate.php b/app/Services/Frontend/Comment/CommentCreate.php
index d0350667..129b78bc 100644
--- a/app/Services/Frontend/Comment/CommentCreate.php
+++ b/app/Services/Frontend/Comment/CommentCreate.php
@@ -8,11 +8,11 @@ use App\Models\Course as CourseModel;
 use App\Models\User as UserModel;
 use App\Services\Frontend\ChapterTrait;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Comment as CommentValidator;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class CommentCreate extends Service
+class CommentCreate extends FrontendService
 {
 
     use ChapterTrait, CourseTrait;
diff --git a/app/Services/Frontend/Comment/CommentDelete.php b/app/Services/Frontend/Comment/CommentDelete.php
index a85cd191..29e78e8e 100644
--- a/app/Services/Frontend/Comment/CommentDelete.php
+++ b/app/Services/Frontend/Comment/CommentDelete.php
@@ -7,10 +7,10 @@ use App\Models\Course as CourseModel;
 use App\Services\Frontend\ChapterTrait;
 use App\Services\Frontend\CommentTrait;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Comment as CommentValidator;
 
-class CommentDelete extends Service
+class CommentDelete extends FrontendService
 {
 
     use CommentTrait, ChapterTrait, CourseTrait;
diff --git a/app/Services/Frontend/Comment/CommentInfo.php b/app/Services/Frontend/Comment/CommentInfo.php
index a8fb2cab..d07299eb 100644
--- a/app/Services/Frontend/Comment/CommentInfo.php
+++ b/app/Services/Frontend/Comment/CommentInfo.php
@@ -8,9 +8,9 @@ use App\Models\User as UserModel;
 use App\Repos\CommentVote as CommentVoteRepo;
 use App\Repos\User as UserRepo;
 use App\Services\Frontend\CommentTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class CommentInfo extends Service
+class CommentInfo extends FrontendService
 {
 
     use CommentTrait;
diff --git a/app/Services/Frontend/Comment/CommentUpdate.php b/app/Services/Frontend/Comment/CommentUpdate.php
index 7a694b08..a8d1823f 100644
--- a/app/Services/Frontend/Comment/CommentUpdate.php
+++ b/app/Services/Frontend/Comment/CommentUpdate.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Comment;
 
 use App\Services\Frontend\CommentTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Comment as CommentValidator;
 
-class CommentUpdate extends Service
+class CommentUpdate extends FrontendService
 {
 
     use CommentTrait;
diff --git a/app/Services/Frontend/Comment/OpposeVote.php b/app/Services/Frontend/Comment/OpposeVote.php
index 87914693..92f98a46 100644
--- a/app/Services/Frontend/Comment/OpposeVote.php
+++ b/app/Services/Frontend/Comment/OpposeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Comment;
 use App\Models\CommentVote as CommentVoteModel;
 use App\Repos\CommentVote as CommentVoteRepo;
 use App\Services\Frontend\CommentTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class OpposeVote extends Service
+class OpposeVote extends FrontendService
 {
 
     use CommentTrait, VoteTrait;
diff --git a/app/Services/Frontend/Consult/AgreeVote.php b/app/Services/Frontend/Consult/AgreeVote.php
index 9ad136e8..abc70af9 100644
--- a/app/Services/Frontend/Consult/AgreeVote.php
+++ b/app/Services/Frontend/Consult/AgreeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Consult;
 use App\Models\ConsultVote as ConsultVoteModel;
 use App\Repos\ConsultVote as ConsultVoteRepo;
 use App\Services\Frontend\ConsultTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class AgreeVote extends Service
+class AgreeVote extends FrontendService
 {
 
     use ConsultTrait, VoteTrait;
diff --git a/app/Services/Frontend/Consult/ConsultCreate.php b/app/Services/Frontend/Consult/ConsultCreate.php
index 8de800ca..d4a7a59a 100644
--- a/app/Services/Frontend/Consult/ConsultCreate.php
+++ b/app/Services/Frontend/Consult/ConsultCreate.php
@@ -6,11 +6,11 @@ use App\Models\Consult as ConsultModel;
 use App\Models\Course as CourseModel;
 use App\Models\User as UserModel;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Consult as ConsultValidator;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class ConsultCreate extends Service
+class ConsultCreate extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Consult/ConsultDelete.php b/app/Services/Frontend/Consult/ConsultDelete.php
index 17778841..4efaabfa 100644
--- a/app/Services/Frontend/Consult/ConsultDelete.php
+++ b/app/Services/Frontend/Consult/ConsultDelete.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Consult;
 use App\Models\Course as CourseModel;
 use App\Services\Frontend\ConsultTrait;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Consult as ConsultValidator;
 
-class ConsultDelete extends Service
+class ConsultDelete extends FrontendService
 {
 
     use CourseTrait, ConsultTrait;
diff --git a/app/Services/Frontend/Consult/ConsultInfo.php b/app/Services/Frontend/Consult/ConsultInfo.php
index 1315e656..0d3911f1 100644
--- a/app/Services/Frontend/Consult/ConsultInfo.php
+++ b/app/Services/Frontend/Consult/ConsultInfo.php
@@ -8,9 +8,9 @@ use App\Models\User as UserModel;
 use App\Repos\ConsultVote as ConsultVoteRepo;
 use App\Repos\User as UserRepo;
 use App\Services\Frontend\ConsultTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class ConsultInfo extends Service
+class ConsultInfo extends FrontendService
 {
 
     use ConsultTrait;
diff --git a/app/Services/Frontend/Consult/ConsultUpdate.php b/app/Services/Frontend/Consult/ConsultUpdate.php
index cfb1a538..dd308300 100644
--- a/app/Services/Frontend/Consult/ConsultUpdate.php
+++ b/app/Services/Frontend/Consult/ConsultUpdate.php
@@ -4,10 +4,10 @@ namespace App\Services\Frontend\Consult;
 
 use App\Services\Frontend\ConsultTrait;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Consult as ConsultValidator;
 
-class ConsultUpdate extends Service
+class ConsultUpdate extends FrontendService
 {
 
     use CourseTrait, ConsultTrait;
diff --git a/app/Services/Frontend/Consult/OpposeVote.php b/app/Services/Frontend/Consult/OpposeVote.php
index bec67c03..4d6ab2a6 100644
--- a/app/Services/Frontend/Consult/OpposeVote.php
+++ b/app/Services/Frontend/Consult/OpposeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Consult;
 use App\Models\ConsultVote as ConsultVoteModel;
 use App\Repos\ConsultVote as ConsultVoteRepo;
 use App\Services\Frontend\ConsultTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class OpposeVote extends Service
+class OpposeVote extends FrontendService
 {
 
     use ConsultTrait, VoteTrait;
diff --git a/app/Services/Frontend/Course/ChapterList.php b/app/Services/Frontend/Course/ChapterList.php
index 55cefe66..a6eedf39 100644
--- a/app/Services/Frontend/Course/ChapterList.php
+++ b/app/Services/Frontend/Course/ChapterList.php
@@ -7,9 +7,9 @@ use App\Models\Course as CourseModel;
 use App\Models\User as UserModel;
 use App\Repos\Course as CourseRepo;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class ChapterList extends Service
+class ChapterList extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/ConsultList.php b/app/Services/Frontend/Course/ConsultList.php
index abb176ec..5da235d8 100644
--- a/app/Services/Frontend/Course/ConsultList.php
+++ b/app/Services/Frontend/Course/ConsultList.php
@@ -10,9 +10,9 @@ use App\Models\User as UserModel;
 use App\Repos\Consult as ConsultRepo;
 use App\Repos\Course as CourseRepo;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class ConsultList extends Service
+class ConsultList extends FrontendService
 {
 
     /**
diff --git a/app/Services/Frontend/Course/CourseInfo.php b/app/Services/Frontend/Course/CourseInfo.php
index a3f441e8..96d9531d 100644
--- a/app/Services/Frontend/Course/CourseInfo.php
+++ b/app/Services/Frontend/Course/CourseInfo.php
@@ -7,9 +7,9 @@ use App\Models\User as UserModel;
 use App\Repos\CourseFavorite as CourseFavoriteRepo;
 use App\Services\Category as CategoryService;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class CourseInfo extends Service
+class CourseInfo extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/CourseList.php b/app/Services/Frontend/Course/CourseList.php
index 68428f2b..792a2a9f 100644
--- a/app/Services/Frontend/Course/CourseList.php
+++ b/app/Services/Frontend/Course/CourseList.php
@@ -5,9 +5,9 @@ namespace App\Services\Frontend\Course;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Repos\Course as CourseRepo;
 use App\Services\Category as CategoryService;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class CourseList extends Service
+class CourseList extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Course/Favorite.php b/app/Services/Frontend/Course/Favorite.php
index b17d16ca..d350e0bc 100644
--- a/app/Services/Frontend/Course/Favorite.php
+++ b/app/Services/Frontend/Course/Favorite.php
@@ -7,10 +7,10 @@ use App\Models\CourseFavorite as CourseFavoriteModel;
 use App\Models\User as UserModel;
 use App\Repos\CourseFavorite as CourseFavoriteRepo;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class Favorite extends Service
+class Favorite extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/PackageList.php b/app/Services/Frontend/Course/PackageList.php
index 3f6127f8..12ba17b2 100644
--- a/app/Services/Frontend/Course/PackageList.php
+++ b/app/Services/Frontend/Course/PackageList.php
@@ -5,9 +5,9 @@ namespace App\Services\Frontend\Course;
 use App\Caches\CoursePackageList as CoursePackageListCache;
 use App\Caches\PackageCourseList as PackageCourseListCache;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class PackageList extends Service
+class PackageList extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/RecommendedList.php b/app/Services/Frontend/Course/RecommendedList.php
index 6a9227e6..f6945d8e 100644
--- a/app/Services/Frontend/Course/RecommendedList.php
+++ b/app/Services/Frontend/Course/RecommendedList.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Course;
 
 use App\Caches\CourseRecommendedList as CourseRecommendedListCache;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class RecommendedList extends Service
+class RecommendedList extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/RelatedList.php b/app/Services/Frontend/Course/RelatedList.php
index aeddb875..63353712 100644
--- a/app/Services/Frontend/Course/RelatedList.php
+++ b/app/Services/Frontend/Course/RelatedList.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Course;
 
 use App\Caches\CourseRelatedList as CourseRelatedListCache;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class RelatedList extends Service
+class RelatedList extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/ReviewList.php b/app/Services/Frontend/Course/ReviewList.php
index e1b3048e..ace85fa7 100644
--- a/app/Services/Frontend/Course/ReviewList.php
+++ b/app/Services/Frontend/Course/ReviewList.php
@@ -10,9 +10,9 @@ use App\Models\User as UserModel;
 use App\Repos\Course as CourseRepo;
 use App\Repos\Review as ReviewRepo;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class ReviewList extends Service
+class ReviewList extends FrontendService
 {
 
     /**
diff --git a/app/Services/Frontend/Course/TeacherList.php b/app/Services/Frontend/Course/TeacherList.php
index e78fed8a..2614de6f 100644
--- a/app/Services/Frontend/Course/TeacherList.php
+++ b/app/Services/Frontend/Course/TeacherList.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Course;
 
 use App\Caches\CourseTeacherList as CourseTeacherListCache;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class TeacherList extends Service
+class TeacherList extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Course/TopicList.php b/app/Services/Frontend/Course/TopicList.php
index b900a0e4..24e3b963 100644
--- a/app/Services/Frontend/Course/TopicList.php
+++ b/app/Services/Frontend/Course/TopicList.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Course;
 
 use App\Caches\CourseTopicList as CourseTopicListCache;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class TopicList extends Service
+class TopicList extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/My/ConsultList.php b/app/Services/Frontend/My/ConsultList.php
index 66070487..763a8697 100644
--- a/app/Services/Frontend/My/ConsultList.php
+++ b/app/Services/Frontend/My/ConsultList.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\My;
 use App\Builders\ConsultList as ConsultListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Repos\Consult as ConsultRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class ConsultList extends Service
+class ConsultList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/My/CourseList.php b/app/Services/Frontend/My/CourseList.php
index 7e95f84c..31020f2f 100644
--- a/app/Services/Frontend/My/CourseList.php
+++ b/app/Services/Frontend/My/CourseList.php
@@ -6,10 +6,10 @@ use App\Builders\CourseUserList as CourseUserListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Models\CourseUser as CourseUserModel;
 use App\Repos\CourseUser as CourseUserRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class CourseList extends Service
+class CourseList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/My/FavoriteList.php b/app/Services/Frontend/My/FavoriteList.php
index 71b7fc09..9960492a 100644
--- a/app/Services/Frontend/My/FavoriteList.php
+++ b/app/Services/Frontend/My/FavoriteList.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\My;
 use App\Builders\CourseFavoriteList as CourseFavoriteListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Repos\CourseFavorite as CourseFavoriteRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class FavoriteList extends Service
+class FavoriteList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/My/OrderList.php b/app/Services/Frontend/My/OrderList.php
index 0a314de9..090ab922 100644
--- a/app/Services/Frontend/My/OrderList.php
+++ b/app/Services/Frontend/My/OrderList.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\My;
 use App\Builders\OrderList as OrderListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Repos\Order as OrderRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class OrderList extends Service
+class OrderList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/My/RefundList.php b/app/Services/Frontend/My/RefundList.php
index d12baaea..78d9c5d7 100644
--- a/app/Services/Frontend/My/RefundList.php
+++ b/app/Services/Frontend/My/RefundList.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\My;
 use App\Builders\RefundList as RefundListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Repos\Refund as RefundRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class RefundList extends Service
+class RefundList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/My/ReviewList.php b/app/Services/Frontend/My/ReviewList.php
index 9530c200..27a7798f 100644
--- a/app/Services/Frontend/My/ReviewList.php
+++ b/app/Services/Frontend/My/ReviewList.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\My;
 use App\Builders\ReviewList as ReviewListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Repos\Review as ReviewRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class ReviewList extends Service
+class ReviewList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/My/UserInfo.php b/app/Services/Frontend/My/UserInfo.php
index 6d5f58e4..fde5af2d 100644
--- a/app/Services/Frontend/My/UserInfo.php
+++ b/app/Services/Frontend/My/UserInfo.php
@@ -3,9 +3,9 @@
 namespace App\Services\Frontend\My;
 
 use App\Models\User as UserModel;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class UserInfo extends Service
+class UserInfo extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Order/OrderCancel.php b/app/Services/Frontend/Order/OrderCancel.php
index 2fa5e087..0867d40d 100644
--- a/app/Services/Frontend/Order/OrderCancel.php
+++ b/app/Services/Frontend/Order/OrderCancel.php
@@ -4,10 +4,10 @@ namespace App\Services\Frontend\Order;
 
 use App\Models\Order as OrderModel;
 use App\Services\Frontend\OrderTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Order as OrderValidator;
 
-class OrderCancel extends Service
+class OrderCancel extends FrontendService
 {
 
     use OrderTrait;
diff --git a/app/Services/Frontend/Order/OrderConfirm.php b/app/Services/Frontend/Order/OrderConfirm.php
index 075f2a2d..8d4c137a 100644
--- a/app/Services/Frontend/Order/OrderConfirm.php
+++ b/app/Services/Frontend/Order/OrderConfirm.php
@@ -8,10 +8,10 @@ use App\Models\Package as PackageModel;
 use App\Models\Reward as RewardModel;
 use App\Models\Vip as VipModel;
 use App\Repos\Package as PackageRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Order as OrderValidator;
 
-class OrderConfirm extends Service
+class OrderConfirm extends FrontendService
 {
 
     public function handle($itemId, $itemType)
diff --git a/app/Services/Frontend/Order/OrderCreate.php b/app/Services/Frontend/Order/OrderCreate.php
index ce9bd36c..f7a5ddd7 100644
--- a/app/Services/Frontend/Order/OrderCreate.php
+++ b/app/Services/Frontend/Order/OrderCreate.php
@@ -10,11 +10,11 @@ use App\Models\User as UserModel;
 use App\Models\Vip as VipModel;
 use App\Repos\Order as OrderRepo;
 use App\Repos\Package as PackageRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Order as OrderValidator;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class OrderCreate extends Service
+class OrderCreate extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Order/OrderInfo.php b/app/Services/Frontend/Order/OrderInfo.php
index 4c7e0322..22103daf 100644
--- a/app/Services/Frontend/Order/OrderInfo.php
+++ b/app/Services/Frontend/Order/OrderInfo.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Order;
 
 use App\Models\Order as OrderModel;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Order as OrderValidator;
 
-class OrderInfo extends Service
+class OrderInfo extends FrontendService
 {
 
     public function handle($sn)
diff --git a/app/Services/Frontend/Package/CourseList.php b/app/Services/Frontend/Package/CourseList.php
index 0ff2afaf..2fdd64d6 100644
--- a/app/Services/Frontend/Package/CourseList.php
+++ b/app/Services/Frontend/Package/CourseList.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Package;
 
 use App\Caches\PackageCourseList as PackageCourseListCache;
 use App\Services\Frontend\PackageTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class CourseList extends Service
+class CourseList extends FrontendService
 {
 
     use PackageTrait;
diff --git a/app/Services/Frontend/Package/PackageInfo.php b/app/Services/Frontend/Package/PackageInfo.php
index 68a28cec..0610c9d2 100644
--- a/app/Services/Frontend/Package/PackageInfo.php
+++ b/app/Services/Frontend/Package/PackageInfo.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Package;
 
 use App\Models\Package as PackageModel;
 use App\Services\Frontend\PackageTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class PackageInfo extends Service
+class PackageInfo extends FrontendService
 {
 
     use PackageTrait;
diff --git a/app/Services/Frontend/Refund/RefundCancel.php b/app/Services/Frontend/Refund/RefundCancel.php
index 0d2e3131..e1e6db0d 100644
--- a/app/Services/Frontend/Refund/RefundCancel.php
+++ b/app/Services/Frontend/Refund/RefundCancel.php
@@ -4,10 +4,10 @@ namespace App\Services\Frontend\Refund;
 
 use App\Models\Refund as RefundModel;
 use App\Services\Frontend\RefundTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Refund as RefundValidator;
 
-class RefundCancel extends Service
+class RefundCancel extends FrontendService
 {
 
     use RefundTrait;
diff --git a/app/Services/Frontend/Refund/RefundConfirm.php b/app/Services/Frontend/Refund/RefundConfirm.php
index c1bd7762..9d6903cb 100644
--- a/app/Services/Frontend/Refund/RefundConfirm.php
+++ b/app/Services/Frontend/Refund/RefundConfirm.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Refund;
 
 use App\Services\Frontend\OrderTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Refund;
 
-class RefundConfirm extends Service
+class RefundConfirm extends FrontendService
 {
 
     use OrderTrait;
diff --git a/app/Services/Frontend/Refund/RefundCreate.php b/app/Services/Frontend/Refund/RefundCreate.php
index 0dc2f0e2..8a26b643 100644
--- a/app/Services/Frontend/Refund/RefundCreate.php
+++ b/app/Services/Frontend/Refund/RefundCreate.php
@@ -4,12 +4,12 @@ namespace App\Services\Frontend\Refund;
 
 use App\Models\Refund as RefundModel;
 use App\Services\Frontend\OrderTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Refund as RefundService;
 use App\Validators\Order as OrderValidator;
 use App\Validators\Refund as RefundValidator;
 
-class RefundCreate extends Service
+class RefundCreate extends FrontendService
 {
 
     use OrderTrait;
diff --git a/app/Services/Frontend/Refund/RefundInfo.php b/app/Services/Frontend/Refund/RefundInfo.php
index 703a7dfe..984e93aa 100644
--- a/app/Services/Frontend/Refund/RefundInfo.php
+++ b/app/Services/Frontend/Refund/RefundInfo.php
@@ -4,9 +4,9 @@ namespace App\Services\Frontend\Refund;
 
 use App\Models\Refund as RefundModel;
 use App\Services\Frontend\RefundTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class RefundInfo extends Service
+class RefundInfo extends FrontendService
 {
 
     use RefundTrait;
diff --git a/app/Services/Frontend/Review/AgreeVote.php b/app/Services/Frontend/Review/AgreeVote.php
index 603eb15d..661b28e7 100644
--- a/app/Services/Frontend/Review/AgreeVote.php
+++ b/app/Services/Frontend/Review/AgreeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Review;
 use App\Models\ReviewVote as ReviewVoteModel;
 use App\Repos\ReviewVote as ReviewVoteRepo;
 use App\Services\Frontend\ReviewTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class AgreeVote extends Service
+class AgreeVote extends FrontendService
 {
 
     use ReviewTrait, VoteTrait;
diff --git a/app/Services/Frontend/Review/OpposeVote.php b/app/Services/Frontend/Review/OpposeVote.php
index be8d129e..6c7cecb3 100644
--- a/app/Services/Frontend/Review/OpposeVote.php
+++ b/app/Services/Frontend/Review/OpposeVote.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Review;
 use App\Models\ReviewVote as ReviewVoteModel;
 use App\Repos\ReviewVote as ReviewVoteRepo;
 use App\Services\Frontend\ReviewTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class OpposeVote extends Service
+class OpposeVote extends FrontendService
 {
 
     use ReviewTrait, VoteTrait;
diff --git a/app/Services/Frontend/Review/ReviewCreate.php b/app/Services/Frontend/Review/ReviewCreate.php
index 4df258a8..fe6b42f2 100644
--- a/app/Services/Frontend/Review/ReviewCreate.php
+++ b/app/Services/Frontend/Review/ReviewCreate.php
@@ -6,11 +6,11 @@ use App\Models\Course as CourseModel;
 use App\Models\Review as ReviewModel;
 use App\Models\User as UserModel;
 use App\Services\Frontend\CourseTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Review as ReviewValidator;
 use App\Validators\UserDailyLimit as UserDailyLimitValidator;
 
-class ReviewCreate extends Service
+class ReviewCreate extends FrontendService
 {
 
     use CourseTrait;
diff --git a/app/Services/Frontend/Review/ReviewDelete.php b/app/Services/Frontend/Review/ReviewDelete.php
index 6a9b0f97..25a0892b 100644
--- a/app/Services/Frontend/Review/ReviewDelete.php
+++ b/app/Services/Frontend/Review/ReviewDelete.php
@@ -5,10 +5,10 @@ namespace App\Services\Frontend\Review;
 use App\Models\Course as CourseModel;
 use App\Services\Frontend\CourseTrait;
 use App\Services\Frontend\ReviewTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Review as ReviewValidator;
 
-class ReviewDelete extends Service
+class ReviewDelete extends FrontendService
 {
 
     use CourseTrait, ReviewTrait;
diff --git a/app/Services/Frontend/Review/ReviewInfo.php b/app/Services/Frontend/Review/ReviewInfo.php
index 6be9caf3..3c79fe2f 100644
--- a/app/Services/Frontend/Review/ReviewInfo.php
+++ b/app/Services/Frontend/Review/ReviewInfo.php
@@ -8,9 +8,9 @@ use App\Models\User as UserModel;
 use App\Repos\ReviewVote as ReviewVoteRepo;
 use App\Repos\User as UserRepo;
 use App\Services\Frontend\ReviewTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class ReviewInfo extends Service
+class ReviewInfo extends FrontendService
 {
 
     use ReviewTrait;
diff --git a/app/Services/Frontend/Review/ReviewUpdate.php b/app/Services/Frontend/Review/ReviewUpdate.php
index 275b10e5..0a7e7271 100644
--- a/app/Services/Frontend/Review/ReviewUpdate.php
+++ b/app/Services/Frontend/Review/ReviewUpdate.php
@@ -4,10 +4,10 @@ namespace App\Services\Frontend\Review;
 
 use App\Services\Frontend\CourseTrait;
 use App\Services\Frontend\ReviewTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Review as ReviewValidator;
 
-class ReviewUpdate extends Service
+class ReviewUpdate extends FrontendService
 {
 
     use CourseTrait, ReviewTrait;
diff --git a/app/Services/Frontend/Teacher/CourseList.php b/app/Services/Frontend/Teacher/CourseList.php
index 1e40f1ae..424d358f 100644
--- a/app/Services/Frontend/Teacher/CourseList.php
+++ b/app/Services/Frontend/Teacher/CourseList.php
@@ -6,10 +6,10 @@ use App\Builders\CourseUserList as CourseUserListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Models\CourseUser as CourseUserModel;
 use App\Repos\CourseUser as CourseUserRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class CourseList extends Service
+class CourseList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/Teacher/TeacherInfo.php b/app/Services/Frontend/Teacher/TeacherInfo.php
index db894d35..516636a7 100644
--- a/app/Services/Frontend/Teacher/TeacherInfo.php
+++ b/app/Services/Frontend/Teacher/TeacherInfo.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Teacher;
 
 use App\Models\User as UserModel;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class TeacherInfo extends Service
+class TeacherInfo extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/Topic/CourseList.php b/app/Services/Frontend/Topic/CourseList.php
index 7f6a7c0e..8ade19cd 100644
--- a/app/Services/Frontend/Topic/CourseList.php
+++ b/app/Services/Frontend/Topic/CourseList.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Topic;
 
 use App\Caches\TopicCourseList as TopicCourseListCache;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\TopicTrait;
 
-class CourseList extends Service
+class CourseList extends FrontendService
 {
 
     use TopicTrait;
diff --git a/app/Services/Frontend/Topic/TopicInfo.php b/app/Services/Frontend/Topic/TopicInfo.php
index a2a6dd5a..a6595d76 100644
--- a/app/Services/Frontend/Topic/TopicInfo.php
+++ b/app/Services/Frontend/Topic/TopicInfo.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Topic;
 
 use App\Models\Topic as TopicModel;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\TopicTrait;
 
-class TopicInfo extends Service
+class TopicInfo extends FrontendService
 {
 
     use TopicTrait;
diff --git a/app/Services/Frontend/Trade/TradeCancel.php b/app/Services/Frontend/Trade/TradeCancel.php
index 6f7438f3..fca35f5f 100644
--- a/app/Services/Frontend/Trade/TradeCancel.php
+++ b/app/Services/Frontend/Trade/TradeCancel.php
@@ -3,9 +3,9 @@
 namespace App\Services\Frontend\Trade;
 
 use App\Services\Frontend\OrderTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 
-class TradeCancel extends Service
+class TradeCancel extends FrontendService
 {
 
     use OrderTrait;
diff --git a/app/Services/Frontend/Trade/TradeCreate.php b/app/Services/Frontend/Trade/TradeCreate.php
index 2c3acbc7..d3605b7f 100644
--- a/app/Services/Frontend/Trade/TradeCreate.php
+++ b/app/Services/Frontend/Trade/TradeCreate.php
@@ -4,10 +4,10 @@ namespace App\Services\Frontend\Trade;
 
 use App\Models\Trade as TradeModel;
 use App\Services\Frontend\OrderTrait;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Validators\Trade as TradeValidator;
 
-class TradeCreate extends Service
+class TradeCreate extends FrontendService
 {
 
     use OrderTrait;
diff --git a/app/Services/Frontend/Trade/TradeInfo.php b/app/Services/Frontend/Trade/TradeInfo.php
index 78613b64..2d7bd4a5 100644
--- a/app/Services/Frontend/Trade/TradeInfo.php
+++ b/app/Services/Frontend/Trade/TradeInfo.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\Trade;
 
 use App\Models\Trade as TradeModel;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\TradeTrait;
 
-class TradeInfo extends Service
+class TradeInfo extends FrontendService
 {
 
     use TradeTrait;
diff --git a/app/Services/Frontend/User/CourseList.php b/app/Services/Frontend/User/CourseList.php
index 3edd0bbb..fc995c38 100644
--- a/app/Services/Frontend/User/CourseList.php
+++ b/app/Services/Frontend/User/CourseList.php
@@ -6,10 +6,10 @@ use App\Builders\CourseUserList as CourseUserListBuilder;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Models\CourseUser as CourseUserModel;
 use App\Repos\CourseUser as CourseUserRepo;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class CourseList extends Service
+class CourseList extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/User/UserInfo.php b/app/Services/Frontend/User/UserInfo.php
index c67fa334..04b8a68d 100644
--- a/app/Services/Frontend/User/UserInfo.php
+++ b/app/Services/Frontend/User/UserInfo.php
@@ -3,10 +3,10 @@
 namespace App\Services\Frontend\User;
 
 use App\Models\User as UserModel;
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Frontend\UserTrait;
 
-class UserInfo extends Service
+class UserInfo extends FrontendService
 {
 
     use UserTrait;
diff --git a/app/Services/Frontend/Verify/EmailCode.php b/app/Services/Frontend/Verify/EmailCode.php
index 991da729..4e3454bd 100644
--- a/app/Services/Frontend/Verify/EmailCode.php
+++ b/app/Services/Frontend/Verify/EmailCode.php
@@ -2,12 +2,12 @@
 
 namespace App\Services\Frontend\Verify;
 
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Mailer\Verify as VerifyMailerService;
 use App\Validators\Captcha as CaptchaValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class EmailCode extends Service
+class EmailCode extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Frontend/Verify/SmsCode.php b/app/Services/Frontend/Verify/SmsCode.php
index 881c104b..2ff06364 100644
--- a/app/Services/Frontend/Verify/SmsCode.php
+++ b/app/Services/Frontend/Verify/SmsCode.php
@@ -2,12 +2,12 @@
 
 namespace App\Services\Frontend\Verify;
 
-use App\Services\Frontend\Service;
+use App\Services\Frontend\Service as FrontendService;
 use App\Services\Smser\Verify as VerifySmserService;
 use App\Validators\Captcha as CaptchaValidator;
 use App\Validators\Verify as VerifyValidator;
 
-class SmsCode extends Service
+class SmsCode extends FrontendService
 {
 
     public function handle()
diff --git a/app/Services/Syncer/Learning.php b/app/Services/Syncer/Learning.php
index fb2b5b40..64005044 100644
--- a/app/Services/Syncer/Learning.php
+++ b/app/Services/Syncer/Learning.php
@@ -37,17 +37,10 @@ class Learning extends Service
 
     /**
      * @param LearningModel $learning
-     * @param int $timeout
+     * @param int $interval
      */
-    public function addItem(LearningModel $learning, $timeout = 10)
+    public function addItem(LearningModel $learning, $interval = 10)
     {
-        /**
-         * 兼容秒和毫秒
-         */
-        if ($timeout > 1000) {
-            $timeout = intval($timeout / 1000);
-        }
-
         $itemKey = $this->getItemKey($learning->request_id);
 
         /**
@@ -64,13 +57,14 @@ class Learning extends Service
             $learning->course_id = $chapter->course_id;
             $learning->client_type = $this->getClientType();
             $learning->client_ip = $this->getClientIp();
-            $learning->duration = $timeout;
+            $learning->duration = $interval;
 
             $this->cache->save($itemKey, $learning, $this->lifetime);
 
         } else {
 
-            $cacheLearning->duration += $timeout;
+            $cacheLearning->duration += $interval;
+            $cacheLearning->position = $learning->position;
 
             $this->cache->save($itemKey, $cacheLearning, $this->lifetime);
         }
diff --git a/app/Validators/Learning.php b/app/Validators/Learning.php
new file mode 100644
index 00000000..c35e84bc
--- /dev/null
+++ b/app/Validators/Learning.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Validators;
+
+use App\Exceptions\BadRequest as BadRequestException;
+use App\Repos\Chapter as ChapterRepo;
+
+class Learning extends Validator
+{
+
+    public function checkChapterId($chapterId)
+    {
+        $chapterRepo = new ChapterRepo();
+
+        $chapter = $chapterRepo->findById($chapterId);
+
+        if (!$chapter) {
+            throw new BadRequestException('learning.invalid_chapter_id');
+        }
+
+        return $chapterId;
+    }
+
+    public function checkRequestId($requestId)
+    {
+        if (!$requestId) {
+            throw new BadRequestException('learning.invalid_request_id');
+        }
+
+        return $requestId;
+    }
+
+    public function checkInterval($interval)
+    {
+        $value = $this->filter->sanitize($interval, ['trim', 'int']);
+
+        /**
+         * 兼容秒和毫秒
+         */
+        if ($value > 1000) {
+            $value = intval($value / 1000);
+        }
+
+        if ($value < 5) {
+            throw new BadRequestException('learning.invalid_interval');
+        }
+
+        return $value;
+    }
+
+    public function checkPosition($position)
+    {
+        $value = $this->filter->sanitize($position, ['trim', 'int']);
+
+        if ($value < 0 || $value > 3 * 3600) {
+            throw new BadRequestException('learning.invalid_position');
+        }
+
+        return $value;
+    }
+
+}
diff --git a/config/errors.php b/config/errors.php
index 9ed4d719..301601fb 100644
--- a/config/errors.php
+++ b/config/errors.php
@@ -312,4 +312,12 @@ $error['course_query.invalid_model'] = '无效的模型类别';
 $error['course_query.invalid_level'] = '无效的难度类别';
 $error['course_query.invalid_sort'] = '无效的排序类别';
 
+/**
+ * 课时学习
+ */
+$error['learning.invalid_chapter_id'] = '无效的章节编号';
+$error['learning.invalid_request_id'] = '无效的请求编号';
+$error['learning.invalid_position'] = '无效的播放位置';
+$error['learning.invalid_interval'] = '无效的间隔时间';
+
 return $error;
diff --git a/scheduler.php b/scheduler.php
index 1a07e522..ef28fd58 100644
--- a/scheduler.php
+++ b/scheduler.php
@@ -10,7 +10,7 @@ $script = __DIR__ . '/console.php';
 
 $bin = '/usr/bin/php';
 
-$scheduler->php($script, $bin, ['--task' => 'learning', '--action' => 'main'])
+$scheduler->php($script, $bin, ['--task' => 'sync_learning', '--action' => 'main'])
     ->at('*/3 * * * *');
 
 $scheduler->php($script, $bin, ['--task' => 'order', '--action' => 'main'])