<?php

namespace App\Http\Controllers;

use App\Jobs\CreerStackLab;
use App\Models\Classe;
use App\Models\LabSession;
use App\Models\Seance;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\View\View;

class SeanceController extends Controller
{
    public function store(Request $request, Classe $classe): RedirectResponse
    {
        abort_if($classe->user_id !== Auth::guard('web')->id(), 403);

        $donnees = $request->validate([
            'lab_id' => ['required', 'exists:labs,id'],
        ]);

        $seance = $classe->seances()->create([
            'lab_id' => $donnees['lab_id'],
            'statut' => Seance::SALLE_ATTENTE,
            'demarree_a' => now(),
        ]);

        return redirect()->route('seances.attente', $seance);
    }

    public function attente(Seance $seance): View
    {
        abort_if($seance->classe->user_id !== Auth::guard('web')->id(), 403);

        return view('seances.attente', [
            'seance' => $seance->load(['classe', 'lab', 'labSessions.eleve', 'labSessions.machines']),
        ]);
    }

    public function consoleProf(Seance $seance, LabSession $labSession): View
    {
        abort_if($seance->classe->user_id !== Auth::guard('web')->id(), 403);
        abort_if($labSession->seance_id !== $seance->id, 404);

        return view('seances.console-prof', [
            'seance' => $seance->load('lab'),
            'labSession' => $labSession->load(['eleve', 'machines']),
        ]);
    }

    /**
     * Admettre un élève, c'est lancer son lab : la stack Heat se construit
     * en tâche de fond (étape 10), le terminal apparaît une fois prête.
     */
    public function admettre(Seance $seance, LabSession $labSession): RedirectResponse
    {
        abort_if($seance->classe->user_id !== Auth::guard('web')->id(), 403);
        abort_if($labSession->seance_id !== $seance->id, 404);

        $dureeMinutes = $labSession->lab->duree_min ?? 45;

        $labSession->update([
            'etat' => LabSession::ADMIS,
            'expire_a' => now()->addMinutes($dureeMinutes),
        ]);

        CreerStackLab::dispatch($labSession);

        return redirect()->route('seances.attente', $seance);
    }

    /**
     * Un élève rejoint la séance : il patiente jusqu'à ce que le prof l'admette.
     */
    public function rejoindre(Request $request, Seance $seance): RedirectResponse
    {
        $eleve = Auth::guard('eleve')->user();
        abort_if($eleve->classe_id !== $seance->classe_id, 403);

        LabSession::firstOrCreate(
            ['seance_id' => $seance->id, 'eleve_id' => $eleve->id],
            ['lab_id' => $seance->lab_id, 'etat' => LabSession::EN_ATTENTE],
        );

        return redirect()->route('seances.eleve.attente', $seance);
    }

    public function attenteEleve(Seance $seance): View|RedirectResponse
    {
        $eleve = Auth::guard('eleve')->user();
        abort_if($eleve->classe_id !== $seance->classe_id, 403);

        $labSession = LabSession::where('seance_id', $seance->id)
            ->where('eleve_id', $eleve->id)
            ->first();

        if ($labSession === null) {
            return redirect()->route('eleve');
        }

        return view('seances.attente-eleve', [
            'seance' => $seance->load('lab'),
            'labSession' => $labSession,
        ]);
    }
}