<?php

namespace app\chat\model;

use think\model\concern\SoftDelete;

class ChatFriendsRoomMessage extends Base
{

    use SoftDelete;

    /**
     * 类型转换
     */
    protected $type = [
        'attach_data' => 'serialize'
    ];

    /**
     * 更改所有未读消息为已读
     * @param int $room_id 房间ID
     * @date 2022-08-16
     */
    public function updateAllUnreadMessage($room_id)
    {
        $where = [
            ['room_id', '=', $room_id],
            ['to_user_id', '=', $this->userId]
        ];
        return $this->where($where)->save([
            'is_read' => 1
        ]);
    }


    /**
     * 获取聊天记录
     * @param int $room_id 房间ID
     * @param int $start_time 聊天记录的起始时间
     * @param int|string $cur_first_message_id 最上面一条的ID
     * @date 2022-08-08
     */
    public function listChatRoomMessage($room_id, $start_time, $cur_first_message_id = '')
    {
        $where = [
            ['room_id', '=', $room_id],
            ['create_time', '>=', $start_time]
        ];
        if (!empty($cur_first_message_id)) {
            // 在最上面一条消息之前的
            $where[] = ['id', '<', $cur_first_message_id];
        }

        $data_list = $this->where($where)
            ->field('id,room_id,user_id,to_user_id,type,content,attach_data,create_time')
            ->order('id desc')->limit(1)
            ->paginate(['list_rows' => 14, 'page' => 1], false)
            ->toArray();

        return $data_list;
    }
}