<?php

namespace app\admin\logic;

use app\model\CommonModel;
use app\model\VideoGroupModel;
use app\model\VideoModel;
use think\Exception;
use think\exception\ValidateException;
use think\facade\Db;
use think\response\Json;

class VideoGroupItemLogic extends BaseLogic
{

    //列表
    public static function list(array $data = []): Json
    {
        $db = Db::name('video_group_item')
            ->alias('a')
            ->leftJoin('video b', 'b.id=a.video_id AND b.is_del=' . CommonModel::$del_normal)
            ->where(['a.is_del' => CommonModel::$del_normal, 'video_group_id' => $data['video_group_id']]);

        if ($data['video_title'] != '') $db->whereLike('b.video_name', '%' . $data['video_title'] . '%');

        $count = $db->count('a.id');

        $list = $db->field('a.id,b.video_name,b.remark video_remark,a.is_top')
            ->page($data['page'], $data['size'])
            ->order(['a.is_top' => 'desc', 'a.id' => 'desc'])
            ->select()
            ->toArray();

        return json_show(CommonModel::$success, '获取视频分组明细列表成功', ['count' => $count, 'list' => $list]);
    }

    //添加
    public static function add(array $data = []): Json
    {

        Db::startTrans();

        try {

            $rs = VideoGroupModel::field('id')
                ->where(['id' => $data['video_group_id'], 'is_del' => CommonModel::$del_normal])
                ->findOrEmpty()
                ->isEmpty();
            if ($rs) throw new Exception('该视频分组不存在');

            $rs = VideoModel::field('id')
                ->where(['id' => $data['video_id'], 'is_del' => CommonModel::$del_normal])
                ->findOrEmpty()
                ->isEmpty();
            if ($rs) throw new Exception('该视频不存在');

            $rs = Db::name('video_group_item')
                ->field('id')
                ->where([
                    'is_del' => CommonModel::$del_normal,
                    'video_group_id' => $data['video_group_id'],
                    'video_id' => $data['video_id']])
                ->findOrEmpty();
            if (!empty($rs)) throw new Exception('该视频已存在，不能在同一视频分组下重复添加');

            $res = Db::name('video_group_item')
                ->insert(array_merge($data, [
                    'is_top' => CommonModel::$top_no,
                    'is_del' => CommonModel::$del_normal,
                    'addtime' => date('Y-m-d H:i:s'),
                    'updatetime' => date('Y-m-d H:i:s'),
                ]));

            Db::name('video_group')
                ->where(['id' => $data['video_group_id'], 'is_del' => CommonModel::$del_normal])
                ->inc('num', $res)
                ->update(['updatetime' => date('Y-m-d H:i:s')]);

            Db::commit();

            return $res ? json_show(CommonModel::$success, '添加视频分组明细成功') : json_show(CommonModel::$success, '添加视频分组明细失败');

        } catch (Exception $exception) {
            Db::rollback();
            return json_show(CommonModel::$error_param, '添加视频分组明细失败,' . $exception->getMessage());
        }
    }

    //获取详情
    public static function read(int $id = 0): Json
    {
        $res = Db::name('video_group_item')
            ->field(true)
            ->where(['id' => $id, 'is_del' => CommonModel::$del_normal])
            ->findOrEmpty();

        if (empty($res)) throw new ValidateException('该视频分组明细为空');

        return json_show(CommonModel::$success, '获取视频分组明细详情成功', $res);
    }

    //编辑
    public static function edit(array $data = []): Json
    {
        $rs = VideoModel::field('id')
            ->where(['id' => $data['video_id'], 'is_del' => CommonModel::$del_normal])
            ->findOrEmpty()
            ->isEmpty();
        if ($rs) return json_show(CommonModel::$error_param, '该视频不存在');

        $res = Db::name('video_group_item')
            ->where(['id' => $data['id'], 'is_del' => CommonModel::$del_normal])
            ->save(array_merge($data, ['updatetime' => date('Y-m-d H:i:s')]));

        return $res ? json_show(CommonModel::$success, '编辑视频分组明细成功') : json_show(CommonModel::$error_param, '编辑视频分组明细失败');

    }

    //删除
    public static function delete(array $ids = []): Json
    {
        Db::startTrans();

        try {

            $video_group_id = Db::name('video_group_item')
                ->whereIn('id', $ids)
                ->where('is_del', CommonModel::$del_normal)
                ->group('video_group_id')
                ->column('video_group_id');

            if (count($video_group_id) > 1) throw new Exception('不能删除不同分组下的视频');

            $num = Db::name('video_group_item')
                ->whereIn('id', $ids)
                ->where('is_del', CommonModel::$del_normal)
                ->update([
                    'is_del' => CommonModel::$del_deleted,
                    'updatetime' => date('Y-m-d H:i:s'),
                ]);

            Db::name('video_group')
                ->where(['id' => $video_group_id[0], 'is_del' => CommonModel::$del_normal])
                ->dec('num', $num)
                ->update(['updatetime' => date('Y-m-d H:i:s')]);

            Db::commit();

            return $num ? json_show(CommonModel::$success, '删除成功') : json_show(CommonModel::$error_param, '删除失败,该视频分组明细不存在');

        } catch (Exception $exception) {
            Db::rollback();
            return json_show(CommonModel::$error_param, '添加视频分组明细失败,' . $exception->getMessage());
        }
    }

    //置顶
    public static function top(array $data = []): Json
    {
        $res = Db::name('video_group_item')
            ->where('id', $data['id'])
            ->where('is_top', '<>', $data['is_top'])
            ->update([
                'is_top' => $data['is_top'],
                'updatetime' => date('Y-m-d H:i:s'),
            ]);

        return $res ? json_show(CommonModel::$success, '操作成功') : json_show(CommonModel::$success, '操作失败，该视频分组明细不存在或重复操作');

    }

}