<?php
/**
 * Created by PhpStorm.
 * User: liyifei2012it
 * Date: 18/4/2
 * Time: 11:23
 */
namespace Api\Controller\Teacher;

use Com\PackageValidate;
use Common\Common\Constant;
use Common\Common\Teacher;
use Common\Service\ArticleService;

class CourseListController extends \Api\Controller\AbstractController
{
    /**
     * CourseList
     * @author liyifei
     * @desc 授课记录列表接口（讲师本人查看的授课记录页）
     * @param Int page:false:1 页码
     * @param Int limit:false:20 每页记录数
     * @param Int teacher_task_id 授课任务ID
     * @return array|bool 课程列表
             array(
                'page' => 1, // 页码
                'limit' => 20, // 每页记录数
                'total' => 200, // 记录总数
                'list' => array(
                    array(
                        'article_id' => 12, // 课程ID
                        'article_title' => '冰糖雪梨', // 课程标题
                        'article_type' => 1, // 课程类型（1=单课程，2=系列课程）
                        'cover_id' => 'b3ddbc502e307665f346cbd6e52cc10d', // 封面ID
                        'cover_url' => 'http://qy.vchangyi.org', // 封面图片URL
                        'study_total' => 10, // 已学习人数
                        'course_nature' => 3, // 课程性质（1=必修课；2=选修课；3=公共课）
                    ),
                ),
            )
     */
    public function Index_post()
    {
        // 验证规则
        $rules = [
            'page' => 'integer',
            'limit' => 'integer',
            'teacher_task_id' => 'integer|gt:0',
        ];

        // 验证数据
        $validate = new PackageValidate($rules, [], array_keys($rules));
        $postData = $validate->postData;

        $teacherServ = &Teacher::instance();
        $teacher = $teacherServ->getTeacherByConds(['uid' => $this->uid]);
        if (empty($teacher)) {
            E('_ERR_TEACHER_NOT_FOUND');
        }
        if ($teacher['teacher_status'] == Constant::TEACHER_STATUS_DISABLE) {
            E('_ERR_TEACHER_NOT_FOUND');
        }

        // 分页
        $postData['page'] = isset($postData['page']) ? $postData['page'] : Constant::PAGING_DEFAULT_PAGE;
        $postData['limit'] = isset($postData['limit']) ? $postData['limit'] : Constant::PAGING_DEFAULT_LIMIT;
        list($start, $perpage) = page_limit($postData['page'], $postData['limit']);

        // 排序
        $orders = [
            'top_time' => 'DESC',
            'update_time' => 'DESC'
        ];

        // 课程列表
        $articleServ = new ArticleService();
        $conds = [
            'teacher_id' => $teacher['teacher_id'],
        ];
        if (isset($postData['teacher_task_id'])) {
            $conds['teacher_task_id'] = $postData['teacher_task_id'];
        }
        $list = $articleServ->list_by_conds($conds, [$start, $perpage], $orders);

        // 课程总数
        $total = $articleServ->count_by_conds($conds);

        $this->_result = [
            'page' => (int)$postData['page'],
            'limit' => (int)$postData['limit'],
            'total' => (int)$total,
            'list' => $list,
        ];
    }
}