<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Carbon;
use Illuminate\Support\Collection;

class SiteBackground extends Model
{
    /**
     * The attributes that are mass assignable.
     *
     * @var string[]
     */
    protected $fillable = [
        'date_start',
        'date_end',
        'default'
    ];

    /**
     * Returns the current IDs of active wallpaper
     */
    public function getImages(): ? \Illuminate\Support\Collection
    {
        $now = Carbon::now();

        $byDates = $this->whereDate('date_start', '<=', $now)->whereDate('date_end', '>=', $now)->get()->pluck('id');
        $default = $this->where('default', true)->get()->pluck('id');
        
        return $byDates->isEmpty() ? $default : $byDates;
    }
}