<?php

namespace App\Http\Resources\Admin;

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

class PetResource extends JsonResource
{

    function calculateAge($birthday) {
        if (!$birthday) return null;

        $birth = Carbon::parse($birthday);
        $now = Carbon::now();

        $years = (int) $birth->diffInYears($now);
        $months = (int) $birth->copy()->addYears($years)->diffInMonths($now);
        $days = (int) $birth->copy()->addYears($years)->addMonths($months)->diffInDays($now);

        $parts = [];
        if ($years > 0) $parts[] = $years . ' ساله';
        if ($months > 0) $parts[] = $months . ' ماهه';
        if ($days > 0 && $years == 0) $parts[] = $days . ' روزه';

        return implode(' و ', $parts) ?: 'تازه متولد';
    }

    /**
     * Transform the resource into an array.
     *
     * @return array<string, mixed>
     */
    public function toArray(Request $request): array
    {
        return [
            'id' => $this->id,
            'name' => $this->name,
            'type' => $this->type,
            'gender' => $this->gender,
            'breed' => $this->breed,
            'weight' => $this->weight,
            'sterilized' => $this->sterilized,
            'birthday' => verta($this->birthday)->format('%Y/%m/%d - H:i'),
            'age' => $this->calculateAge($this->birthday),
            'owner' => $this->relationLoaded('owner') ? $this->owner->only(['id','fullname']) : null,
            'created_at' => verta($this->created_at)->format('%Y/%m/%d - H:i'),
        ];
    }
}