<?php

namespace app\admin\controller;

use app\common\controller\Backend;
use think\Db;
use think\exception\DbException;
use think\response\Json;

/**
 * 消息
 *
 * @icon fa fa-circle-o
 */
class Message extends Backend
{

    /**
     * Message模型对象
     * @var \app\admin\model\Message
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\Message;
        $this->view->assign("typeList", $this->model->getTypeList());
    }


    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 查看
     *
     * @return string|Json
     * @throws \think\Exception
     * @throws DbException
     */
    public function index()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        if (false === $this->request->isAjax()) {
            return $this->view->fetch();
        }
        //如果发送的来源是 Selectpage，则转发到 Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        [$where, $sort, $order, $offset, $limit] = $this->buildparams();
        $list = $this->model
            ->auth($this->auth)
            ->where($where)
            ->where('type',1)
            ->order($sort, $order)
            ->paginate($limit);
        $result = ['total' => $list->total(), 'rows' => $list->items()];

        $update = [];
        foreach ($list as &$item){
            $readUids = explode(',',$item->read_uid??'');
            $item->status = 1;
            if(!in_array($this->auth->id,$readUids)){
                $readUids[] = $this->auth->id;
                $update[] = [
                    'id'        =>  $item->id,
                    'read_uid'  =>  implode(',',$readUids),
                    'update_time'   => date('Y-m-d H:i:s')
                ];
                $item->status = 0;
            }
        }
        if($update){
            $this->batchUpdateByIdSimple('fa_message',$update);
        }
        return json($result);
    }


    /**
     * 通用批量更新方法（自动识别主键和字段，无循环）
     *
     * @param string $table 表名
     * @param array $data 数据数组，格式如 [['id' => 1, 'field1' => 'v1'], ['id' => 2, 'field1' => 'v2']]
     * @param string $idField 主键字段名，默认 'id'
     * @return int 更新影响行数
     */
    protected function batchUpdateByIdSimple(string $table, array $data, string $idField = 'id'): int
    {
        if (empty($data)) return 0;

        $ids = array_column($data, $idField);
        $fields = array_keys(array_diff_key($data[0], [$idField => '']));

        $sqlParts = [];
        foreach ($fields as $field) {
            $case = "CASE {$idField}";
            foreach ($data as $row) {
                $id = intval($row[$idField]);
                $val = addslashes($row[$field]);
                $case .= " WHEN {$id} THEN '{$val}'";
            }
            $case .= " END";
            $sqlParts[] = "{$field} = {$case}";
        }

        $sql = sprintf(
            "UPDATE %s SET %s WHERE %s IN (%s)",
            $table,
            implode(", ", $sqlParts),
            $idField,
            implode(',', array_map('intval', $ids))
        );

        return Db::execute($sql);
    }


    public function getNoreadCount()
    {
        $count = 0;
        //超管不提醒新消息
        if(!$this->auth->isSuperAdmin()){
            $count =  $this->model
                ->where('type',1)
                ->auth($this->auth)
                //->whereRaw("FIND_IN_SET(?, read_uid) = 0 OR read_uid IS NULL OR read_uid = ''", [$this->auth->id])
                ->whereRaw("FIND_IN_SET({$this->auth->id}, read_uid) = 0 OR read_uid = ''  or read_uid is null")
                ->count();
        }
        return [
            'count' =>  $count
        ];

    }

}