000

<?php

namespace App\Rules;

use Illuminate\Contracts\Validation\Rule;
use Illuminate\Http\Request;
use Illuminate\Support\Str;

class OneOf implements Rule
{

public $oneOf = [];
    public $request = null;
    public $message = "";

/**
     * Create a new rule instance.
     *
     * @return void
     */
    public function __construct(Request $request, array $oneOf, string $message = "")
    {
        $this->oneOf = $oneOf;
        $this->request = $request;
        $this->message = $message;
    }

/**
     * Determine if the validation rule passes.
     *
     * @param  string  $attribute
     * @param  mixed  $value
     * @return bool
     */
    public function passes($attribute, $value)
    {
        $count = 0;
        foreach ($this->oneOf as $param) {
            if($this->request->has($param) && $this->request->$param != null){
                $count++;
            }
        }
        return count($this->oneOf) && ($count === 1) ? true : false;
    
    }

/**
     * Get the validation error message.
     *
     * @return string
     */
    public function message()
    {
        $i = 1;
        $length = count($this->oneOf);
        $fieldNames = null;
        foreach($this->oneOf as $fieldName) {
            if($i < $length) {
                $fieldNames .= str_replace('_', ' ', Str::title($fieldName)) . ', ';
            } else {
                $fieldNames .= str_replace('_', ' ', Str::title($fieldName));
            }
            $i++;
        }
        return  strlen(trim($this->message)) ? $this->message : "Only one of these fields should be used: $fieldNames.";
    }
}