<?php
// +----------------------------------------------------------------------
// | LARAVEL8.0 框架 [ LARAVEL ][ RXThinkCMF ]
// +----------------------------------------------------------------------
// | 版权所有 2017~2021 LARAVEL研发中心
// +----------------------------------------------------------------------
// | 官方网站: http://www.laravel.cn
// +----------------------------------------------------------------------
// | Author: laravel开发员 <laravel.qq.com>
// +----------------------------------------------------------------------

namespace App\Services;

use App\Models\ChatMessageModel;
use App\Models\ConfigModel;

/**
 * 聊天-服务类
 * Class ChatMessageService
 * @package App\Services
 */
class ChatMessageService extends BaseService
{
    // 静态对象
    protected static $instance = null;

    /**
     * 构造函数
     * ChatMessageService constructor.
     */
    public function __construct()
    {
        $this->model = new ChatMessageModel();
    }

    /**
     * 静态入口
     * @return static|null
     */
    public static function make(){
        if(!self::$instance){
            self::$instance = (new static());
        }
        return self::$instance;
    }

    /**
     * 聊天对话窗口唯一KEY
     * @param $fromUid
     * @param $toUid
     * @return string
     */
    public function getChatKey($fromUid, $toUid)
    {
        $chatKeys = [$fromUid, $toUid];
        asort($chatKeys);
        return implode('', $chatKeys);
    }

    /**
     * 推送保存消息，如订单消息
     * @param $data 消息数据
     * @return int|number
     */
    public function pushMessage($data)
    {
        return $this->model->edit($data);
    }
}