<?php

namespace app\common\model;

use think\Model;

/**
 * 附件模型
 * Class AttachmentModel
 * @package app\common\model
 */
class AttachmentModel extends Model
{
    protected $name = 'attachment';

    /**
     * 获取列表
     * @param $params
     * @param int $rows
     * @param int $page
     * @param string $fields
     * @return array
     * @throws \think\exception\DbException
     */
    public function getLists($params, $rows = 20, $page = 1, $fields = '*')
    {
        // 条件搜索
        if (!empty($params['where'])) {
            $this->where($params['where']);
        } else {
            if (!empty($params['keyword'])) {
                switch ($params['type']) {
                    case 1 :
                        $this->where(['filename' => ['LIKE', '%' . $params['keyword'] . '%']]);
                        break;
                }
            }
            if (!empty($params['nav'])) {
                $navGroup = implode('_', $params['nav']);
                $this->where(['nav_group' => $navGroup]);
            }
            if (!empty($params['nid'])) {
                $this->where(['nid' => $params['nid']]);
            }
            if (!empty($params['category'])) {
                $this->where(['category' => $params['category']]);
            }
            if (!empty($params['mimetype'])) {
                $this->where(['mimetype' => ['LIKE', '' . $params['mimetype'] . '%']]);
            }
            // 时间范围查询
            if (!empty($params['start_time'])) {
                $this->where('createtime', '>=', $params['start_time']);
            }
            if (!empty($params['end_time'])) {
                $this->where('createtime', '<=', $params['end_time']);
            }
        }

        // 排序
        $order  = !empty($params['order']) ? $params['order'] : 'id DESC';
        $result = $this
            ->field($fields)
            ->order($order)
            ->paginate($rows, false, [
                'page' => $page
            ]);

        $arr = [
            'list'     => [],
            'total'    => 0,
            'page'     => 1,
            'pageSize' => $rows
        ];
        // 格式化数据信息
        if (!$result->isEmpty()) {
            $arr = [
                'list'     => $result->items(),
                'total'    => $result->total(),
                'page'     => $result->currentPage(),
                'pageSize' => $result->listRows()
            ];
            if (!empty($arr['list'])) {
                foreach ($arr['list'] as &$v) {
                    $v['nav_name'] = '未分类';
                    if (!empty($v['nav_group'])) {
                        $navGroupArr = explode('_', $v['nav_group']);
                        if (count($navGroupArr) == 1) {
                            $v['nav_name'] = AttachmentNavModel::where(['id' => $navGroupArr[0]])->value('name');
                        } else {
                            $v['nav_name'] = AttachmentNavModel::where(['id' => $navGroupArr[0]])->value('name') . ' / ' . AttachmentNavModel::where(['id' => $navGroupArr[1]])->value('name');
                        }
                    }
                }
            }
        }

        return $arr;
    }

    /**
     * 归类
     * @param $data
     * @return bool|mixed
     */
    public function nav($data)
    {
        if (empty($data) || !is_array($data)) {
            $this->error = '参数不正确';
            return false;
        }

        return $this->transaction(function () use ($data) {
            foreach ($data['ids'] as $v) {
                $nid      = count($data['nav']) > 1 ? $data['nav'][1] : $data['nav'][0];
                $navGroup = implode('_', $data['nav']);
                $this->update([
                    'id'        => $v,
                    'nid'       => $nid,
                    'nav_group' => $navGroup
                ]);
            }

            return true;
        });
    }

    /**
     * 添加
     * @param $data
     * @return bool|int|string
     */
    public function add($data)
    {
        if (empty($data) || !is_array($data)) {
            $this->error = '参数不正确';
            return false;
        }

        if ($this->insertGetId($data)) {
            return true;
        } else {
            $this->error = '添加出错了，请重新尝试。';
            return false;
        }
    }

    /**
     * 获取某条记录
     * @param $where
     * @return array|bool|false|\PDOStatement|string|Model
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function getItem($where)
    {
        if (empty($where)) {
            $this->error = '参数不正确。';
            return false;
        }
        if (floor($where) > 0) {
            $where = ['id' => $where];
        }

        return $this->where($where)->find();
    }

    /**
     * 编辑
     * @param $data
     * @return bool
     */
    public function edit($data)
    {
        if (empty($data) || !is_array($data)) {
            $this->error = '参数不正确';
            return false;
        }

        if ($this->update($data)) {
            return true;
        } else {
            $this->error = '编辑出错了，请重新尝试。';
            return false;
        }
    }

    // 删除
    public function del($where)
    {
        if (empty($where)) {
            $this->error = '参数不正确';
            return false;
        }

        if ($this->where($where)->delete()) {
            return true;
        } else {
            $this->error = '删除出错了，请重新尝试。';
            return false;
        }
    }
}