<?php

namespace App\Http\Resources;

use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

class HuntResource extends JsonResource
{
    public static $wrap = null;

    /**
     * Transform the resource into an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(Request $request): array
    {
        return array_merge(parent::toArray($request), [
            'xp' => $this->totalXp(),
        ]);
    }

    private function totalXp(): int
    {
        if ($this->resource->relationLoaded('steps')) {
            return (int) $this->resource->steps->sum('xp');
        }

        $stepsSumXp = $this->resource->getAttribute('steps_sum_xp');

        if ($stepsSumXp !== null) {
            return (int) $stepsSumXp;
        }

        return (int) $this->resource->steps()->sum('xp');
    }
}