<?php
// /public/cabinet/events.php
require_once __DIR__ . '/../includes/init_secretaire.php';


// --- Inputs ---
$compteId     = (int)($_SESSION['compte_id'] ?? 0);
$praticien_id = (int)($_POST['praticien_id'] ?? $_GET['praticien_id'] ?? 0);

// FullCalendar envoie start/end en ISO (UTC). On les rend optionnels.
$startIso = isset($_POST['start']) ? (string)$_POST['start'] : (isset($_GET['start']) ? (string)$_GET['start'] : null);
$endIso   = isset($_POST['end'])   ? (string)$_POST['end']   : (isset($_GET['end'])   ? (string)$_GET['end']   : null);

if ($compteId <= 0 || $praticien_id <= 0) { echo json_encode([]); exit; }

// --- Sécurité: vérifier appartenance secrétaire → praticien ---
$chk = $pdo->prepare("
  SELECT 1
    FROM secretaire_praticien
   WHERE secretaire_user_id = :u
     AND praticien_id      = :p
     AND is_active         = 1
   LIMIT 1
");
$chk->execute(['u'=>$compteId,'p'=>$praticien_id]);
if (!$chk->fetchColumn()) { echo json_encode([]); exit; }

// --- Requête RDV (avec plage si fournie) ---
$params = [':p' => $praticien_id];
$whereDates = '';

if ($startIso && $endIso) {
  // On normalise en 'Y-m-d H:i:s'
  $startSql = date('Y-m-d H:i:s', strtotime($startIso));
  $endSql   = date('Y-m-d H:i:s', strtotime($endIso));
  $whereDates = " AND rv.date_rdv BETWEEN :d1 AND :d2 ";
  $params[':d1'] = $startSql;
  $params[':d2'] = $endSql;
}

$sql = "
  SELECT rv.id, rv.date_rdv, rv.duree_minutes, rv.statut, rv.lieu,
         c.nom, c.prenom
    FROM rendez_vous rv
    JOIN client c ON rv.client_id = c.id
   WHERE rv.praticien_id = :p
         $whereDates
   ORDER BY rv.date_rdv ASC
";
$stmt = $pdo->prepare($sql);
$stmt->execute($params);
$rdvs = $stmt->fetchAll(PDO::FETCH_ASSOC);

// --- Mappage couleurs par statut ---
$couleurs = [
  'prévu'    => '#f39c12', // orange
  'confirmé' => '#27ae60', // vert
  'annulé'   => '#c0392b', // rouge
  'terminé'  => '#7f8c8d', // gris
];

// --- Construction des events ---
$tz = new DateTimeZone('Europe/Paris');
$events = [];

foreach ($rdvs as $r) {
  $start = new DateTime($r['date_rdv'], $tz);
  $end   = (clone $start)->modify('+' . (int)($r['duree_minutes'] ?? 60) . ' minutes');
  $statut = (string)$r['statut'];

  $events[] = [
    'id'     => (int)$r['id'],
    'title'  => trim(($r['prenom'] ?? '') . ' ' . ($r['nom'] ?? '')),
    'start'  => $start->format(DateTime::ATOM),  // ISO 8601
    'end'    => $end->format(DateTime::ATOM),
    'allDay' => false,
    'color'  => $couleurs[$statut] ?? '#999',
    // Champ non standard → disponible via event.extendedProps.statut côté FC
    'statut' => ucfirst($statut),
  ];
}

echo json_encode($events, JSON_UNESCAPED_UNICODE);