<?php

namespace App\Models;

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

class LabSession extends Model
{
    use HasFactory;

    public const EN_ATTENTE = 'en_attente';

    // Admis par le prof : CreerStackLab est dispatché, la stack Heat se construit.
    public const ADMIS = 'admis';

    // Stack CREATE_COMPLETE : les VM existent, les terminaux peuvent s'ouvrir.
    public const ACTIF = 'actif';

    public const TERMINE = 'termine';

    public const EXPIRE = 'expire';

    protected $fillable = ['seance_id', 'eleve_id', 'lab_id', 'heat_stack_id', 'heat_stack_name', 'etat', 'expire_a'];

    protected $casts = [
        'expire_a' => 'datetime',
    ];

    public function seance(): BelongsTo
    {
        return $this->belongsTo(Seance::class);
    }

    public function eleve(): BelongsTo
    {
        return $this->belongsTo(Eleve::class);
    }

    public function lab(): BelongsTo
    {
        return $this->belongsTo(Lab::class);
    }

    public function machines(): HasMany
    {
        return $this->hasMany(LabSessionMachine::class);
    }
}