<?php

namespace App\Rules;

use Txj\Elastic\Facades\ES;
use Illuminate\Contracts\Validation\Rule;
use Illuminate\Support\Facades\Request;

/**
 * es_exists:table,column:otherColumn,toColumn
 * 验证的字段必须存在于给定的数据库表中.支持多个字段验证,otherColumn为当前其他字段，toColumn需要验证的表的其他字段。
 *
 * Class EsExistsRule
 * @package App\Rules
 */
class EsExistsRule implements Rule
{
    protected string $table;
    protected string $siteAliasName;
    protected ?string $params;
    protected ?string $message;
    protected string $attribute;
    protected ?int $ignoreId = 0;
    protected mixed $value;

    /**
     * Create a new rule instance.
     *
     * @return void
     */
    public function __construct(string $table, array $ruleValue = [], $siteAliasName = '')
    {
        $this->table = $table; // 当前的集合表
        $this->siteAliasName = $siteAliasName; // 站点别名

        $this->params = (isset($ruleValue['params']) && !empty($ruleValue['params'])) ? $ruleValue['params'] : '';
        $this->message = (isset($ruleValue['error_msg']) && !empty($ruleValue['error_msg'])) ? $ruleValue['error_msg'] : '';
    }

    /**
     * Determine if the validation rule passes.
     *
     * @param  $attribute
     * @param mixed $value
     * @return bool
     */
    public function passes($attribute, $value): bool
    {
        $this->attribute = $attribute;
        $this->value = $value;

        // 支持多个字段条件
        $columnArr = explode(':', $this->params);
        $firstStr = array_shift($columnArr);

        $arr = explode(",", $firstStr);
        $existTable = $arr[0];
        $column = $arr[1];

        $where = [$column => $value];

        if ($columnArr) {
            foreach ($columnArr as $row) {
                $arr = explode(",", $row);
                $otherColumn = $arr[0];
                $toColumn = $arr[1];

                $where = array_merge($where, [$toColumn => Request::input($otherColumn)]);
            }
        }

        $find = ES::table($existTable)->where('is_delete', 0)->where($where);
        try {
            return (bool)$find->count();
        } catch (\Exception $e) {
            $this->message = $e->getMessage();
            return false;
        }
    }

    /**
     * 编辑的时候,过滤掉当前的id
     *
     * @param $id
     * @return $this
     */
    public function ignore($id): EsUniqueRule
    {
        $this->ignoreId = $id;

        return $this;
    }

    /**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        return $this->message ?: '该值 :attribute 不存在！';
    }
}