<?php
session_start();
include('include/headscript.php');

error_log("SELECT_SCHOOL HIT - user=" . ($_SESSION['iduserlogin'] ?? 'NOUSER') . " school=" . var_export($_SESSION['school_id'] ?? null, true));

// ----------------------------------------------------
// SYNC school_id between Laravel session and PHP $_SESSION
// ----------------------------------------------------
if (session_status() === PHP_SESSION_NONE) {
    session_start();
}

// se Laravel ha school_id e PHP no → copio in PHP
// if (!isset($_SESSION['school_id']) && function_exists('session') && session()->has('school_id')) {
//     $_SESSION['school_id'] = session('school_id');
//     if (session()->has('school_name')) {
//         $_SESSION['school_name'] = session('school_name');
//     }
// }


// se PHP ha school_id e Laravel no → copio in Laravel
if (isset($_SESSION['school_id']) && function_exists('session') && !session()->has('school_id')) {
    session([
        'school_id' => $_SESSION['school_id'],
        'school_name' => $_SESSION['school_name'] ?? null,
    ]);
}


/*
|--------------------------------------------------------------------------
| AUTH CHECK
|--------------------------------------------------------------------------
*/
if (!isset($_SESSION['iduserlogin'])) {
    header('Location: login.php');
    exit;
}

/*
|--------------------------------------------------------------------------
| SE SCHOOL GIÀ IN SESSIONE → VAI AVANTI
|--------------------------------------------------------------------------
*/
// Se ho già una school_id in sessione, vado avanti SOLO se l'utente ha 1 scuola sola.
// Se ne ha >1, devo sempre mostrare la selezione.
if (!empty($_SESSION['school_id'])) {
    // Non faccio redirect qui: lo decido DOPO aver caricato $userSchools
    // (vedi sotto, dopo la query delle scuole utente)
}


$iduserlogin = $_SESSION['iduserlogin'];

$dbHandler = DBHandlerSelect::getInstance();
$pdo = $dbHandler->getConnection();

/*
|--------------------------------------------------------------------------
| DATI UTENTE
|--------------------------------------------------------------------------
*/
$stmt = $pdo->prepare("SELECT first_name, avatar FROM auth_users WHERE id = ?");
$stmt->execute([$iduserlogin]);
$user = $stmt->fetch();

$first_name = htmlspecialchars($user['first_name'] ?? '');

/*
|--------------------------------------------------------------------------
| POST → SELEZIONE SCUOLA
|--------------------------------------------------------------------------
*/
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['school_id'])) {
    $school_id = (int) $_POST['school_id'];

    $stmt = $pdo->prepare("
        SELECT id, name
        FROM schools
        WHERE id = ? AND status = 'active'
    ");
    $stmt->execute([$school_id]);
    $school = $stmt->fetch();

    if ($school) {

        // Iscrizione automatica se non esiste
        $check = $pdo->prepare("
            SELECT 1 FROM user_schools
            WHERE user_id = ? AND school_id = ?
        ");
        $check->execute([$iduserlogin, $school_id]);

        if (!$check->fetch()) {
            $pdo->prepare("
                INSERT INTO user_schools (user_id, school_id, status)
                VALUES (?, ?, 'active')
            ")->execute([$iduserlogin, $school_id]);
        }

        // Sessione
        $_SESSION['school_id']   = $school['id'];
        $_SESSION['school_name'] = $school['name'];
        $_SESSION['school_selected'] = 1;


        if (function_exists('session')) {
            session([
                'school_id' => $school['id'],
                'school_name' => $school['name'],
            ]);
        }


        header('Location: user_dashboard.php');
        exit;
    }
}

/*
|--------------------------------------------------------------------------
| RECUPERO SCUOLE UTENTE
|--------------------------------------------------------------------------
*/
$stmt = $pdo->prepare("
    SELECT s.id, s.name, s.logo, s.address_city
    FROM user_schools us
    JOIN schools s ON us.school_id = s.id
    WHERE us.user_id = ?
      AND us.status = 'active'
      AND s.status = 'active'
    ORDER BY s.name
");
$stmt->execute([$iduserlogin]);
$userSchools = $stmt->fetchAll();
// --- VALIDAZIONE school_id: se non appartiene all'utente, la resetto ---
$allowedIds = array_map(fn($r) => (int)$r['id'], $userSchools);

if (!empty($_SESSION['school_id']) && !in_array((int)$_SESSION['school_id'], $allowedIds, true)) {
    unset($_SESSION['school_id'], $_SESSION['school_name'], $_SESSION['school_selected']);
    if (function_exists('session')) {
        session()->forget('school_id');
        session()->forget('school_name');
    }
}

// Caso 1: una sola scuola -> auto-select e vado in dashboard
if (count($userSchools) === 1) {
    $_SESSION['school_id'] = (int)$userSchools[0]['id'];
    $_SESSION['school_name'] = $userSchools[0]['name'];
    $_SESSION['school_selected'] = 1;

    if (function_exists('session')) {
        session([
            'school_id' => (int)$userSchools[0]['id'],
            'school_name' => $userSchools[0]['name'],
        ]);
    }

    header('Location: user_dashboard.php');
    exit;
}

// Caso 2: più scuole -> se school_id è presente MA non c'è selezione esplicita, mostro comunque la select
// Se invece school_id + school_selected sono presenti, posso andare in dashboard
if (count($userSchools) > 1 && !empty($_SESSION['school_id']) && !empty($_SESSION['school_selected'])) {
    header('Location: user_dashboard.php');
    exit;
}

/*


/*
|--------------------------------------------------------------------------
| CASO: NESSUNA SCUOLA → MOSTRA PUBBLICHE
|--------------------------------------------------------------------------
*/
if (empty($userSchools)) {
    $stmt = $pdo->query("
        SELECT id, name, logo, address_city
        FROM schools
        WHERE status = 'active'
        ORDER BY name
    ");
    $schools = $stmt->fetchAll();

    $title    = "Benvenuto!";
    $subtitle = "Scegli la scuola dove vuoi prenotare le lezioni";
} else {
    $schools  = $userSchools;
    $title    = "Ciao $first_name!";
    $subtitle = "Seleziona la scuola in cui entrare oggi";
}
?>

<!doctype html>
<html lang="it">

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Scegli la scuola - Yogiboook</title>

    <?php include('cssinclude.php'); ?>
    <?php include('siteinfo.php'); ?>

    <style>
        :root {
            --pastel-blue: #94bacc;
            --pastel-green: #a3d9b1;
            --pastel-pink: #f8bbd0;
            --pastel-yellow: #fff8c4;
        }

        body {
            background: linear-gradient(to bottom, #f0f8ff, #f8f9fa);
            min-height: 100vh;
        }

        .card-pastel {
            background: linear-gradient(135deg, #94bacc, #a3d9b1);
            color: white;
        }

        .radius-20 {
            border-radius: 20px;
        }

        .school-card {
            border-radius: 20px;
            overflow: hidden;
            cursor: pointer;
            transition: all 0.25s ease;
            border: 2px solid transparent;
        }

        .school-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 18px 45px rgba(0, 0, 0, 0.12);
            border-color: rgba(148, 186, 204, 0.9);
        }

        .school-logo {
            height: 120px;
            object-fit: contain;
            background: #f8f9fa;
            padding: 16px;
        }

        .btn-select {
            background: linear-gradient(135deg, var(--pastel-blue), var(--pastel-green));
            border: none;
            color: white;
            font-weight: 700;
            border-radius: 14px;
            padding: 12px 14px;
            transition: transform 0.15s ease;
        }

        .btn-select:hover {
            transform: scale(1.03);
            color: white;
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0.35rem 0.75rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
        }

        /* =========================================================
   FORCE FULL WIDTH WHEN SIDEBAR IS NOT INCLUDED
   ========================================================= */
        .no-sidebar .page-wrapper,
        .no-sidebar .page-content {
            margin-left: 0 !important;
        }

        .no-sidebar .topbar,
        .no-sidebar .header,
        .no-sidebar .navbar,
        .no-sidebar .topbar-nav {
            left: 0 !important;
            width: 100% !important;
        }

        .no-sidebar .wrapper {
            width: 100% !important;
        }

        .no-sidebar .sidebar-wrapper {
            display: none !important;
        }
    </style>
</head>

<body class="no-sidebar">


    <div class="wrapper">
        <!-- niente navbar -->
        <?php include('include/topbar.php'); ?>

        <div class="page-wrapper">
            <div class="page-content" style="min-height: 100vh;">
                <div class="container-fluid px-4 pt-5 pb-5">

                    <!-- HERO -->
                    <div class="card card-pastel radius-20 shadow-lg mb-5">
                        <div class="card-body text-center py-5 position-relative">
                            <div class="badge-soft mb-3">
                                <i class="bx bx-buildings"></i>
                                Selezione scuola
                            </div>

                            <h1 class="display-6 fw-bold mb-2"><?= htmlspecialchars($title) ?></h1>
                            <p class="fs-5 opacity-90 mb-0"><?= htmlspecialchars($subtitle) ?></p>

                            <div class="mt-4 text-white-50">
                                <small>Utente: <strong class="text-white"><?= htmlspecialchars($first_name) ?></strong></small>
                            </div>
                        </div>
                    </div>

                    <!-- CONTENUTO -->
                    <?php if (empty($schools)): ?>
                        <div class="text-center py-5">
                            <i class="bx bx-building-house bx-lg text-muted"></i>
                            <h4 class="mt-3 text-muted">Nessuna scuola disponibile al momento</h4>
                            <p class="text-muted mb-0">Riprova più tardi oppure contatta l’assistenza.</p>
                        </div>
                    <?php else: ?>
                        <form method="POST" id="schoolForm">
                            <div class="row g-4 justify-content-center">

                                <?php foreach ($schools as $school): ?>
                                    <?php
                                    $sid = (int)$school['id'];
                                    $sname = $school['name'] ?? '';
                                    $scity = $school['address_city'] ?? '';

                                    $logoPath = null;
                                    if (!empty($school['logo']) && file_exists("photoschool/" . $school['logo'])) {
                                        $logoPath = "photoschool/" . $school['logo'];
                                    }
                                    ?>
                                    <div class="col-md-6 col-lg-4">
                                        <div class="card school-card h-100 shadow-sm" onclick="selectSchool(<?= $sid ?>)">

                                            <div class="text-center">
                                                <?php if ($logoPath): ?>
                                                    <img src="<?= htmlspecialchars($logoPath) ?>"
                                                        class="school-logo w-100"
                                                        alt="<?= htmlspecialchars($sname) ?>">
                                                <?php else: ?>
                                                    <div class="school-logo d-flex align-items-center justify-content-center">
                                                        <i class="bx bx-building-house display-4 text-muted"></i>
                                                    </div>
                                                <?php endif; ?>
                                            </div>

                                            <div class="card-body text-center pb-4">
                                                <h5 class="card-title mb-2"><?= htmlspecialchars($sname) ?></h5>

                                                <?php if (!empty($scity)): ?>
                                                    <p class="text-muted small mb-0">
                                                        <i class="bx bx-map me-1"></i><?= htmlspecialchars($scity) ?>
                                                    </p>
                                                <?php endif; ?>
                                            </div>

                                            <div class="card-footer bg-transparent border-0 pt-0 pb-4 px-4">
                                                <button type="submit" class="btn btn-select w-100 shadow-sm">
                                                    <i class="bx bx-check me-2"></i>Seleziona questa scuola
                                                </button>
                                            </div>

                                        </div>

                                        <input type="radio"
                                            name="school_id"
                                            value="<?= $sid ?>"
                                            id="school_<?= $sid ?>"
                                            class="d-none"
                                            required>
                                    </div>
                                <?php endforeach; ?>

                            </div>
                        </form>
                    <?php endif; ?>

                </div>
            </div>
        </div>

        <?php include('include/footer.php'); ?>
    </div>

    <?php include('jsinclude.php'); ?>

    <script>
        function selectSchool(id) {
            const r = document.getElementById('school_' + id);
            if (r) r.checked = true;
            document.getElementById('schoolForm').submit();
        }
    </script>

</body>

</html>