<?php
// +----------------------------------------------------------------------
// | Niucloud-admin 企业快速开发的多应用管理平台
// +----------------------------------------------------------------------
// | 官方网址：https://www.niucloud.com
// +----------------------------------------------------------------------
// | niucloud团队 版权所有 开源版本可自由商用
// +----------------------------------------------------------------------
// | Author: Niucloud Team
// +----------------------------------------------------------------------

namespace app\service\api\apiService;

use app\model\campus\Campus;
use app\model\campus_person_role\CampusPersonRole;
use app\model\chat_friends\ChatFriends;
use app\model\chat_messages\ChatMessages;
use app\model\dict\Dict;
use core\base\BaseApiService;
use think\facade\Db;

/**
 * 校区服务层
 * Class MemberService
 * @package app\service\api\member
 */
class ChatService extends BaseApiService
{
    public function __construct()
    {
        parent::__construct();
    }

    //查询好友关系列表
    public function getChatFriendsPage(array $where)
    {
        $page_params = $this->getPageParam();//获取请求参数中的页码+分页数
        $page = $page_params['page'];
        $limit = $page_params['limit'];

        $model = new ChatFriends();
        //判断用没有员工id
        if (!empty($where['personnel_id'])) {
            $model = $model->where('personnel_id', $where['personnel_id']);
        }

        if (!empty($where['customer_resources_id'])) {
            $model = $model->where('customer_resources_id', $where['customer_resources_id']);
        }

        $data = $model
            ->with([
                'personnel',
                'customer',
            ])
            ->paginate([
            'list_rows' => $limit,
            'page' => $page,
        ])->toArray();

        return $data;
    }

    //查询好友关系详情
    public function getChatFriendsInfo(array $where)
    {
        $model = new ChatFriends();
        //判断用没有员工id
        if (!empty($where['personnel_id'])) {
            $model = $model->where('personnel_id', $where['personnel_id']);
        }
        if (!empty($where['customer_resources_id'])) {
            $model = $model->where('customer_resources_id', $where['customer_resources_id']);
        }
        $data = $model->find();


        if ($data) {
            $data = $data->toArray();
            $res = [
                'code' => 1,
                'msg' => '操作成功',
                'data' => $data
            ];
            return $res;
        } else {
            $res = [
                'code' => 0,
                'msg' => '暂无数据',
                'data' => []
            ];
            return $res;
        }
    }

    //创建好友关系
    public function addChatFriends(array $data)
    {
        $data = ChatFriends::create($data);
        if($data){
            $res = [
                'code' => 1,
                'msg' => '操作成功',
                'data' => $data
            ];
            return $res;
        }else{
            $res = [
                'code' => 0,
                'msg' => '操作失败',
                'data' => []
            ];
            return $res;
        }
    }

    //发送聊天信息
    public function sendChatMessages(array $data){
        //开启事物操作
        Db::startTrans();
        try {
            $add = ChatMessages::create($data);

            if(!empty($data['from_type']) && !empty($data['from_id']) && !empty($data['friend_id'])){
                $to_type = 'personnel';
                if($data['from_type'] == 'personnel'){
                    $to_type = 'customer';
                }
                $this->addUnreadCount($to_type,$data['friend_id']);

                $this->editUnreadCount($data['from_type'],$data['friend_id']);
            }

            if($add){
                Db::commit();
                $res = [
                    'code' => 1,
                    'msg' => '操作成功',
                    'data' => $add->toArray()
                ];
                return $res;
            }else{
                Db::rollback();
                $res = [
                    'code' => 0,
                    'msg' => '操作失败',
                    'data' => []
                ];
                return $res;
            }
        }catch (\Exception $exception){
            Db::rollback();
            $res = [
                'code' => 0,
                'msg' => '操作失败',
                'data' => []
            ];
            return $res;
        }
    }

    //获取聊天记录
    public function getChatMessagesList(array $where){
        $page_params = $this->getPageParam();//获取请求参数中的页码+分页数
        $page = $page_params['page'];
        $limit = $page_params['limit'];

        $model = new ChatMessages();
        $model = $model->where('friend_id',$where['friend_id']);

        // 按id倒序排列
        $data = $model->order('id', 'desc')->paginate([
            'list_rows' => $limit,
            'page' => $page,
        ])->toArray();

        return $data;
    }

    /**
     * 修改未读消息数量
     * @param $from_type 发送者类型|personnel=员工,customer=学生(客户)
     * @param $from_id 发送者ID（员工/学生）
     * @param $friend_id 关联chat_friends表id
     */
    public function editUnreadCount($from_type ,$friend_id){
        $where = [];
        if($from_type == 'personnel'){
            //员工发送的消息->把员工的未读消息数量清空
            $data['unread_count_personnel'] = 0;
        }else{
            //学生发送的消息->把学生的未读消息数量清空
            $data['unread_count_customer_resources'] = 0;
        }
        $model = ChatFriends::where('id',$friend_id);

        $data['updated_at'] = date('Y-m-d H:i:s');
        $model = $model->update($data);
        return $model;
    }

    /**
     * 追加接收消息的人未读消息数量+1
     * @param $to_type 接收者类型|personnel=员工,customer=学生(客户)
     * @param $to_id 接收者ID（员工/学生）
     * @param $friend_id 关联chat_friends表id
     */
    public function addUnreadCount($to_type, $friend_id)
    {
        $model = ChatFriends::where('id', $friend_id);
        
        if ($to_type == 'personnel') {
            // 员工接收的消息 -> 员工的未读消息数量+1
            return $model->inc('unread_count_personnel')->update();
        } else {
            // 学生接收的消息 -> 学生的未读消息数量+1
            return $model->inc('unread_count_customer_resources')->update();
        }
    }

}