<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;

/**
 * @property-read int|null $servies_count Nombre de LabSession déjà admises/actives/terminées/expirées, uniquement
 *   quand chargé par `withCount('labSessions as servies_count', ...)` (StockChaud::cible()).
 */
class Seance extends Model
{
    public const PLANIFIEE = 'planifiee';

    public const SALLE_ATTENTE = 'salle_attente';

    public const EN_COURS = 'en_cours';

    public const TERMINEE = 'terminee';

    protected $fillable = ['classe_id', 'lab_id', 'statut', 'prevue_a', 'demarree_a', 'terminee_a', 'visio_ouverte_a', 'visio_salle', 'visio_chat', 'mode_examen', 'duree_examen_min'];

    protected $casts = [
        'prevue_a' => 'datetime',
        'demarree_a' => 'datetime',
        'terminee_a' => 'datetime',
        'visio_ouverte_a' => 'datetime',
        'visio_chat' => 'boolean',
        'mode_examen' => 'boolean',
    ];

    public function visioOuverte(): bool
    {
        return $this->visio_ouverte_a !== null && $this->visio_salle !== null;
    }

    /** @return BelongsTo<Classe, $this> */
    public function classe(): BelongsTo
    {
        return $this->belongsTo(Classe::class);
    }

    /** @return BelongsTo<Lab, $this> */
    public function lab(): BelongsTo
    {
        return $this->belongsTo(Lab::class);
    }

    /** @return HasMany<LabSession, $this> */
    public function labSessions(): HasMany
    {
        return $this->hasMany(LabSession::class);
    }
}