osb/app/Models/Base/ServiceType.php

<?php

namespace App\Models\Base;

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

use App\Interfaces\ServiceItem;
use App\Models\{Account,Service};
use App\Models\Supplier\Type;
use App\Traits\{ScopeServiceActive,ScopeServiceUserAuthorised};

abstract class ServiceType extends Model implements ServiceItem
{
	use ScopeServiceActive,ScopeServiceUserAuthorised;

	protected $dates = [
		'expire_at',
	];
	public $timestamps = FALSE;

	/* RELATIONS */

	/**
	 * Account this service belongs to
	 * @return \Illuminate\Database\Eloquent\Relations\HasOneThrough
	 */
	public function account()
	{
		return $this->hasOneThrough(Account::class,Service::class);
	}

	/**
	 * @NOTE: The service_id column could be discarded, if the id column=service_id
	 * @return \Illuminate\Database\Eloquent\Relations\MorphOne
	 */
	public function service()
	{
		return $this->morphOne(Service::class,'type','model','id','service_id');
	}

	/* SCOPES */

	/**
	 * Search for a record
	 *
	 * @param        $query
	 * @param string $term
	 * @return mixed
	 */
	public function scopeSearch($query,string $term)
	{
		return $query
			->with(['service'])
			->join('services','services.id','=',$this->getTable().'.service_id')
			->Where('services.id','like','%'.$term.'%');
	}

	/* INTERFACE */

	public function getContractTermAttribute(): int
	{
		return $this->service->offering->contract_term;
	}

	public function getServiceExpireAttribute(): ?Carbon
	{
		return $this->expire_at ?: $this->service->invoice_next_at;
	}

	public function hasExpired(): bool
	{
		return (! $this->inContract()) && ($this->service->invoice_next_at && $this->service->invoice_next_at->isPast());
	}

	public function inContract(): bool
	{
		return $this->expire_at && $this->expire_at->isFuture();
	}

	/* ATTRIBUTES */

	public function getTypeAttribute()
	{
		return strtolower((new \ReflectionClass($this))->getShortName());
	}

	/* METHODS */

	/**
	 * The supplier's service that we provide
	 *
	 * @return Type
	 */
	public function supplied(): Type
	{
		return $this->service->product->type->supplied;
	}
}