<?php

namespace App\Http\Requests;

use App\Http\Services\AuthService;
use Carbon\Carbon;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Str;

class BlogArticleRequest extends FormRequest
{
    private $authService;

    public function __construct(AuthService $authService, array $query = [], array $request = [], array $attributes = [], array $cookies = [], array $files = [], array $server = [], $content = null)
    {
        parent::__construct($query, $request, $attributes, $cookies, $files, $server, $content);

        $this->authService = $authService;
    }

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return $this->authService->isAuthenticated();
    }

    /**
     * Run before validating data
     */
    protected function prepareForValidation()
    {
        if (!$this->exists('slug')) {
            $this->merge([
                'slug' => Str::slug($this->get('title')),
            ]);
        }

        if (!$this->exists('date')) {
            $this->merge([
                'date' => Carbon::now()->toDateTime(),
            ]);
        }

        if (!$this->exists('summary')) {
            $content = $this->get('content');
            $pos = -1;
            if (strlen($content) > 200) {
                $pos = strpos($content, ' ', 200);
            }
            $summary = substr($content, 0, $pos);

            $this->merge([
                'summary' => $summary,
            ]);
        }
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'title' => 'required|string|max:255',
            'slug' => 'required|string|max:255',
            'date' => 'required|date',
            'summary' => 'required|string|max:1023',
            'content' => 'required|string',
        ];
    }
}