<?php
 
namespace App\Models;
 
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
 
class Licence extends Model
{
    use HasFactory;
 
    protected $fillable = [
        'contrat_id',
        'fournisseur_id',
        'commune_id',
        'nom',
        'cle_licence',
        'nombre_sieges_total',
        'nombre_sieges_utilises',
        'date_acquisition',
        'date_expiration',
        'type_licence',
        'statut',
        'notes',
    ];
 
    protected $casts = [
        'date_acquisition' => 'date',
        'date_expiration'  => 'date',
        'cle_licence'      => 'encrypted', // Encrypted storage for license keys
    ];
 
    public function contrat(): BelongsTo
    {
        return $this->belongsTo(Contrat::class);
    }
 
    public function fournisseur(): BelongsTo
    {
        return $this->belongsTo(Fournisseur::class);
    }
 
    public function commune(): BelongsTo
    {
        return $this->belongsTo(Commune::class);
    }
 
    /**
     * Get the usage rate as a percentage.
     */
    public function getTauxUtilisationAttribute(): float
    {
        if ($this->nombre_sieges_total <= 0) {
            return 0;
        }
 
        return round(($this->nombre_sieges_utilises / $this->nombre_sieges_total) * 100, 2);
    }
}