<?php
// Forza la visualizzazione degli errori
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

include('include/headscript.php');

// Connessione al database
$dbHandler = DBHandlerSelect::getInstance();
$pdo = $dbHandler->getConnection();

// Verifica che iduserlogin sia definito
if (!isset($iduserlogin)) {
    die("Errore: ID utente non definito.");
}

// Recupera i dati della scuola in base all'utente loggato
$stmt = $pdo->prepare("
    SELECT id, name, website, email, phone, description, address_street, address_city, address_postal_code, address_province, address_country, logo, status 
    FROM schools 
    WHERE owner_id = ?
");
$stmt->execute([$iduserlogin]);
$school = $stmt->fetch();
if (!$school) {
    die("Errore: Nessuna scuola trovata per l'utente loggato.");
}
$school_id = $school['id'];
$school_name = $school['name'];

// Recupera tutte le categorie disponibili
$stmt = $pdo->prepare("SELECT id, name FROM class_categories WHERE status = 'active' ORDER BY name");
$stmt->execute();
$categories = $stmt->fetchAll();

// Recupera tutti gli insegnanti della scuola
$stmt = $pdo->prepare("SELECT id, first_name, last_name FROM teachers WHERE user_id = ? AND status = 'active' ORDER BY first_name, last_name");
$stmt->execute([$iduserlogin]);
$teachers = $stmt->fetchAll();

// Funzione per ridimensionare l'immagine
function resizeImage($source_path, $dest_path, $max_width = 800)
{
    list($width, $height, $type) = getimagesize($source_path);
    if ($width <= $max_width) {
        copy($source_path, $dest_path);
        return;
    }

    $new_width = $max_width;
    $new_height = (int)(($height * $new_width) / $width);

    switch ($type) {
        case IMAGETYPE_JPEG:
            $source = imagecreatefromjpeg($source_path);
            break;
        case IMAGETYPE_PNG:
            $source = imagecreatefrompng($source_path);
            break;
        case IMAGETYPE_GIF:
            $source = imagecreatefromgif($source_path);
            break;
        default:
            throw new Exception("Formato immagine non supportato.");
    }

    $dest = imagecreatetruecolor($new_width, $new_height);
    if ($type == IMAGETYPE_PNG) {
        imagealphablending($dest, false);
        imagesavealpha($dest, true);
    }
    imagecopyresampled($dest, $source, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

    switch ($type) {
        case IMAGETYPE_JPEG:
            imagejpeg($dest, $dest_path, 90);
            break;
        case IMAGETYPE_PNG:
            imagepng($dest, $dest_path);
            break;
        case IMAGETYPE_GIF:
            imagegif($dest, $dest_path);
            break;
    }

    imagedestroy($source);
    imagedestroy($dest);
}

// Gestione delle azioni (aggiunta, modifica, cancellazione)
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (isset($_POST['action'])) {
        $action = $_POST['action'];

        // Aggiunta di una nuova classe
        if ($action === 'add') {
            $class_category_id = $_POST['class_category_id'] ?? 0;
            $name = $_POST['name'] ?? '';
            $description = $_POST['description'] ?? null;
            $requirements = $_POST['requirements'] ?? null;
            $level = in_array($_POST['level'], ['beginner', 'intermediate', 'advanced']) ? $_POST['level'] : 'beginner';
            $typical_duration = $_POST['typical_duration'] ? (int)$_POST['typical_duration'] : null;
            $max_capacity = $_POST['max_capacity'] ? (int)$_POST['max_capacity'] : 0; // Nuovo campo
            $days_of_week = $_POST['days_of_week'] ?? '';
            $start_time = $_POST['start_time'] ?? '';
            $status = $_POST['status'] === 'active' ? 'active' : 'inactive';

            // Rimossi period_start e period_end dai controlli
            if (empty($name) || $class_category_id <= 0 || empty($days_of_week) || empty($start_time)) {
                $error = "I campi obbligatori non sono stati compilati.";
            } else {
                $photo = null;
                if (isset($_FILES['photo']) && $_FILES['photo']['error'] === UPLOAD_ERR_OK) {
                    $file = $_FILES['photo'];
                    $timestamp = time();
                    $original_name = basename($file['name']);
                    $extension = strtolower(pathinfo($original_name, PATHINFO_EXTENSION));
                    $allowed_extensions = ['jpg', 'jpeg', 'png', 'gif'];

                    if (in_array($extension, $allowed_extensions)) {
                        $new_filename = "photoclass/{$school_id}-{$timestamp}-{$original_name}";
                        $temp_path = $file['tmp_name'];
                        try {
                            resizeImage($temp_path, $new_filename);
                            $photo = $new_filename;
                        } catch (Exception $e) {
                            $error = "Errore durante il ridimensionamento della foto: " . $e->getMessage();
                        }
                    } else {
                        $error = "Estensione del file non consentita. Usa JPG, JPEG, PNG o GIF.";
                    }
                }

                if (!isset($error)) {
                    $stmt = $pdo->prepare("
                        INSERT INTO class_types (school_id, class_category_id, name, description, photo, requirements, level, typical_duration, max_capacity, days_of_week, start_time, status)
                        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                    ");
                    $success = $stmt->execute([
                        $school_id,
                        $class_category_id,
                        $name,
                        $description,
                        $photo,
                        $requirements,
                        $level,
                        $typical_duration,
                        $max_capacity, // Nuovo campo
                        $days_of_week,
                        $start_time,
                        $status
                    ]);

                    if ($success) {
                        $success_message = "Classe aggiunta con successo!";
                    } else {
                        $error = "Errore durante l'aggiunta della classe.";
                    }
                }
            }
        }

        // Modifica di una classe esistente
        if ($action === 'edit') {
            $id = $_POST['id'] ?? 0;
            $class_category_id = $_POST['class_category_id'] ?? 0;
            $name = $_POST['name'] ?? '';
            $description = $_POST['description'] ?? null;
            $requirements = $_POST['requirements'] ?? null;
            $level = in_array($_POST['level'], ['beginner', 'intermediate', 'advanced']) ? $_POST['level'] : 'beginner';
            $typical_duration = $_POST['typical_duration'] ? (int)$_POST['typical_duration'] : null;
            $max_capacity = $_POST['max_capacity'] ? (int)$_POST['max_capacity'] : 0; // Nuovo campo
            $days_of_week = $_POST['days_of_week'] ?? '';
            $start_time = $_POST['start_time'] ?? '';
            $status = $_POST['status'] === 'active' ? 'active' : 'inactive';

            // Rimossi period_start e period_end dai controlli
            if (empty($name) || $class_category_id <= 0 || empty($days_of_week) || empty($start_time)) {
                $error = "I campi obbligatori non sono stati compilati.";
            } else {
                // Recupera la classe esistente per ottenere il percorso della foto attuale
                $stmt = $pdo->prepare("SELECT photo FROM class_types WHERE id = ? AND school_id = ?");
                $stmt->execute([$id, $school_id]);
                $class = $stmt->fetch();
                if (!$class) {
                    $error = "Classe non trovata.";
                } else {
                    $photo = $class['photo'];
                    if (isset($_FILES['photo']) && $_FILES['photo']['error'] === UPLOAD_ERR_OK) {
                        $file = $_FILES['photo'];
                        $timestamp = time();
                        $original_name = basename($file['name']);
                        $extension = strtolower(pathinfo($original_name, PATHINFO_EXTENSION));
                        $allowed_extensions = ['jpg', 'jpeg', 'png', 'gif'];

                        if (in_array($extension, $allowed_extensions)) {
                            $new_filename = "photoclass/{$school_id}-{$timestamp}-{$original_name}";
                            $temp_path = $file['tmp_name'];
                            try {
                                resizeImage($temp_path, $new_filename);
                                $photo = $new_filename;
                                if ($class['photo'] && file_exists($class['photo'])) {
                                    unlink($class['photo']);
                                }
                            } catch (Exception $e) {
                                $error = "Errore durante il ridimensionamento della foto: " . $e->getMessage();
                            }
                        } else {
                            $error = "Estensione del file non consentita. Usa JPG, JPEG, PNG o GIF.";
                        }
                    }

                    if (!isset($error)) {
                        $stmt = $pdo->prepare("
                            UPDATE class_types 
                            SET class_category_id = ?, name = ?, description = ?, photo = ?, requirements = ?, level = ?, 
                                typical_duration = ?, max_capacity = ?, days_of_week = ?, start_time = ?, status = ?
                            WHERE id = ? AND school_id = ?
                        ");
                        $success = $stmt->execute([
                            $class_category_id,
                            $name,
                            $description,
                            $photo,
                            $requirements,
                            $level,
                            $typical_duration,
                            $max_capacity, // Nuovo campo
                            $days_of_week,
                            $start_time,
                            $status,
                            $id,
                            $school_id
                        ]);

                        if ($success) {
                            $success_message = "Classe aggiornata con successo!";
                        } else {
                            $error = "Errore durante l'aggiornamento della classe.";
                        }
                    }
                }
            }
        }

        // Cancellazione di una classe
        if ($action === 'delete') {
            $id = $_POST['id'] ?? 0;
            $stmt = $pdo->prepare("SELECT photo FROM class_types WHERE id = ? AND school_id = ?");
            $stmt->execute([$id, $school_id]);
            $class = $stmt->fetch();
            if ($class) {
                if ($class['photo'] && file_exists($class['photo'])) {
                    unlink($class['photo']);
                }
                $stmt = $pdo->prepare("DELETE FROM class_types WHERE id = ? AND school_id = ?");
                $success = $stmt->execute([$id, $school_id]);

                if ($success) {
                    $success_message = "Classe eliminata con successo!";
                } else {
                    $error = "Errore durante l'eliminazione della classe.";
                }
            } else {
                $error = "Classe non trovata.";
            }
        }

        // Assegnazione di un insegnante
        if ($action === 'assign_teacher') {
            $class_id = $_POST['class_id'] ?? 0;
            $teacher_id = !empty($_POST['teacher_id']) ? (int)$_POST['teacher_id'] : null;

            // Verifica che la classe appartenga alla scuola
            $stmt = $pdo->prepare("SELECT id FROM class_types WHERE id = ? AND school_id = ?");
            $stmt->execute([$class_id, $school_id]);
            if (!$stmt->fetch()) {
                $error = "Classe non trovata.";
            } else {
                // Se teacher_id è null, rimuoviamo l'assegnazione; altrimenti, assegniamo l'insegnante
                $stmt = $pdo->prepare("UPDATE class_types SET teacher_id = ? WHERE id = ?");
                $success = $stmt->execute([$teacher_id, $class_id]);

                if ($success) {
                    $success_message = "Insegnante assegnato con successo!";
                } else {
                    $error = "Errore durante l'assegnazione dell'insegnante.";
                }
            }
        }
        // Propagazione delle sessioni
        if ($action === 'propagate_sessions') {
            $class_id = $_POST['class_id'] ?? 0;
            $start_date = $_POST['start_date'] ?? '';
            $end_date = $_POST['end_date'] ?? '';

            // Validazione delle date
            if (empty($start_date) || empty($end_date)) {
                $error = "Le date di inizio e fine sono obbligatorie.";
            } elseif (strtotime($end_date) < strtotime($start_date)) {
                $error = "La data di fine non può essere precedente alla data di inizio.";
            } else {
                // Verifica che la classe appartenga alla scuola
                $stmt = $pdo->prepare("
            SELECT days_of_week, start_time, typical_duration, teacher_id 
            FROM class_types 
            WHERE id = ? AND school_id = ?
        ");
                $stmt->execute([$class_id, $school_id]);
                $class = $stmt->fetch();
                if (!$class) {
                    $error = "Classe non trovata.";
                } else {
                    // Recupera i giorni di chiusura della scuola
                    $stmt = $pdo->prepare("
                SELECT start_date, end_date 
                FROM day_off 
                WHERE school_id = ? AND (
                    (start_date BETWEEN ? AND ?) OR 
                    (end_date BETWEEN ? AND ?) OR 
                    (start_date <= ? AND end_date >= ?)
                )
            ");
                    $stmt->execute([
                        $school_id,
                        $start_date,
                        $end_date,
                        $start_date,
                        $end_date,
                        $start_date,
                        $end_date
                    ]);
                    $days_off = $stmt->fetchAll();

                    // Crea un array di giorni di chiusura
                    $off_dates = [];
                    foreach ($days_off as $day_off) {
                        $current = new DateTime($day_off['start_date']);
                        $end = new DateTime($day_off['end_date']);
                        while ($current <= $end) {
                            $off_dates[] = $current->format('Y-m-d');
                            $current->modify('+1 day');
                        }
                    }

                    // Converti i giorni della settimana in un array
                    $days_of_week = array_map('trim', explode(',', $class['days_of_week']));
                    $days_map = [
                        'Lun' => 'Monday',
                        'Mar' => 'Tuesday',
                        'Mer' => 'Wednesday',
                        'Gio' => 'Thursday',
                        'Ven' => 'Friday',
                        'Sab' => 'Saturday',
                        'Dom' => 'Sunday'
                    ];

                    // Converti i giorni in formato inglese per il confronto
                    $days_of_week_english = [];
                    foreach ($days_of_week as $day) {
                        if (isset($days_map[$day])) {
                            $days_of_week_english[] = $days_map[$day];
                        }
                    }

                    // Calcola l'orario di fine
                    $start_time = new DateTime($class['start_time']);
                    $end_time = clone $start_time;
                    if ($class['typical_duration']) {
                        $end_time->modify("+{$class['typical_duration']} minutes");
                    } else {
                        $end_time->modify("+60 minutes"); // Default: 1 ora se la durata non è specificata
                    }

                    // Genera un propagation_id univoco
                    $propagation_id = uniqid('prop_', true);

                    // Genera le sessioni
                    $current_date = new DateTime($start_date);
                    $end_date_dt = new DateTime($end_date);
                    $end_date_dt->setTime(23, 59, 59); // Include l'ultimo giorno

                    $stmt = $pdo->prepare("
                INSERT INTO class_sessions (class_type_id, session_date, start_time, end_time, teacher_id, status, propagation_id)
                VALUES (?, ?, ?, ?, ?, 'scheduled', ?)
            ");

                    $sessions_created = 0;
                    while ($current_date <= $end_date_dt) {
                        $day_of_week = $current_date->format('l'); // Giorno della settimana in inglese (es. Monday)
                        $current_date_str = $current_date->format('Y-m-d');

                        // Verifica se il giorno è un giorno di chiusura e se è nei giorni della settimana della classe
                        if (!in_array($current_date_str, $off_dates) && in_array($day_of_week, $days_of_week_english)) {
                            $session_date = $current_date->format('Y-m-d');
                            $start_time_str = $start_time->format('H:i:s');
                            $end_time_str = $end_time->format('H:i:s');

                            try {
                                $stmt->execute([
                                    $class_id,
                                    $session_date,
                                    $start_time_str,
                                    $end_time_str,
                                    $class['teacher_id'],
                                    $propagation_id
                                ]);
                                $sessions_created++;
                            } catch (PDOException $e) {
                                // Ignora errori di chiave unica (sessioni già esistenti)
                                if ($e->getCode() != 23000) {
                                    $error = "Errore durante la propagazione delle sessioni: " . $e->getMessage();
                                    break;
                                }
                            }
                        }
                        $current_date->modify('+1 day');
                    }

                    if (!isset($error)) {
                        $success_message = "Propagate $sessions_created sessioni con successo! (ID Propagazione: $propagation_id)";
                    }
                }
            }
        }

        // Rimozione di una propagazione
        if ($action === 'remove_propagation') {
            $propagation_id = $_POST['propagation_id'] ?? '';
            $class_id = $_POST['class_id'] ?? 0;

            if (empty($propagation_id) || $class_id <= 0) {
                $error = "ID di propagazione o classe non validi.";
            } else {
                // Verifica che la classe appartenga alla scuola
                $stmt = $pdo->prepare("SELECT id FROM class_types WHERE id = ? AND school_id = ?");
                $stmt->execute([$class_id, $school_id]);
                if (!$stmt->fetch()) {
                    $error = "Classe non trovata.";
                } else {
                    // Elimina tutte le sessioni associate a questa propagazione
                    $stmt = $pdo->prepare("
                DELETE FROM class_sessions 
                WHERE propagation_id = ? AND class_type_id = ?
            ");
                    $stmt->execute([$propagation_id, $class_id]);

                    $deleted_rows = $stmt->rowCount();
                    $success_message = "Propagazione rimossa con successo! ($deleted_rows sessioni eliminate)";
                }
            }
        }
        // Reindirizza per evitare il doppio invio del form
        header("Location: school_dashboard.php");
        exit;
    }
}

// Recupera tutte le classi della scuola con il nome dell'insegnante
$stmt = $pdo->prepare("
    SELECT ct.*, cc.name AS category_name, t.first_name AS teacher_first_name, t.last_name AS teacher_last_name 
    FROM class_types ct 
    LEFT JOIN class_categories cc ON ct.class_category_id = cc.id 
    LEFT JOIN teachers t ON ct.teacher_id = t.id 
    WHERE ct.school_id = ? 
    ORDER BY ct.created_at DESC
");
$stmt->execute([$school_id]);
$classes = $stmt->fetchAll();
?>

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

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="icon" href="assets/images/favicon-32x32.png" type="image/png" />
    <?php include('cssinclude.php'); ?>
    <?php include('siteinfo.php'); ?>
</head>

<body>
    <div class="wrapper">
        <?php include('include/navbar.php'); ?>
        <?php include('include/topbar.php'); ?>
        <div class="page-wrapper">
            <div class="page-content">
                <!-- Sezione Informazioni Scuola -->
                <div class="card radius-10 mb-4">
                    <div class="card-body">
                        <div class="d-flex align-items-center">
                            <div class="me-4">
                                <img src="<?php echo $school['logo'] ? htmlspecialchars($school['logo']) : 'assets/images/default-school-logo.png'; ?>"
                                    alt="Logo Scuola" class="rounded-circle" style="width: 100px; height: 100px; object-fit: cover;">
                            </div>
                            <div class="flex-grow-1">
                                <h5 class="mb-1"><?php echo htmlspecialchars($school['name']); ?></h5>
                                <p class="mb-1">
                                    <strong>Indirizzo:</strong>
                                    <?php
                                    $address_parts = array_filter([
                                        $school['address_street'],
                                        $school['address_city'],
                                        $school['address_postal_code'],
                                        $school['address_province'],
                                        $school['address_country']
                                    ]);
                                    echo htmlspecialchars(implode(', ', $address_parts)) ?: 'Non specificato';
                                    ?>
                                </p>
                                <p class="mb-1"><strong>Email:</strong> <?php echo htmlspecialchars($school['email'] ?: 'Non specificato'); ?></p>
                                <p class="mb-1"><strong>Telefono:</strong> <?php echo htmlspecialchars($school['phone'] ?: 'Non specificato'); ?></p>
                                <p class="mb-1"><strong>Sito Web:</strong>
                                    <?php if ($school['website']): ?>
                                        <a href="<?php echo htmlspecialchars($school['website']); ?>" target="_blank"><?php echo htmlspecialchars($school['website']); ?></a>
                                    <?php else: ?>
                                        Non specificato
                                    <?php endif; ?>
                                </p>
                                <p class="mb-0"><strong>Descrizione:</strong> <?php echo htmlspecialchars($school['description'] ?: 'Non specificata'); ?></p>
                            </div>
                            <div>
                                <a href="school_profile.php" class="btn btn-primary">Modifica Profilo</a>
                            </div>
                        </div>
                    </div>
                </div>
                <!-- Sezione Pulsantiera -->
                <div class="row mb-4">
                    <div class="col-12">
                        <div class="d-flex flex-wrap justify-content-center gap-3">
                            <!-- Pulsante Situazione Clienti -->
                            <a href="#" class="btn btn-primary d-flex align-items-center px-4 py-3 shadow-sm rounded" style="min-width: 200px;">
                                <i class="bx bx-user me-2" style="font-size: 24px;"></i>
                                <span class="fs-5">Situazione Clienti</span>
                            </a>
                            <!-- Pulsante Ordini -->
                            <a href="#" class="btn btn-success d-flex align-items-center px-4 py-3 shadow-sm rounded" style="min-width: 200px;">
                                <i class="bx bx-cart me-2" style="font-size: 24px;"></i>
                                <span class="fs-5">Ordini</span>
                            </a>
                            <!-- Pulsante Finanze -->
                            <a href="#" class="btn btn-warning d-flex align-items-center px-4 py-3 shadow-sm rounded" style="min-width: 200px;">
                                <i class="bx bx-dollar me-2" style="font-size: 24px;"></i>
                                <span class="fs-5">Finanze</span>
                            </a>
                            <!-- Pulsante Abbonamenti -->
                            <a href="#" class="btn btn-info d-flex align-items-center px-4 py-3 shadow-sm rounded" style="min-width: 200px;">
                                <i class="bx bx-calendar me-2" style="font-size: 24px;"></i>
                                <span class="fs-5">Abbonamenti</span>
                            </a>
                            <!-- Pulsante Day Off -->
                            <a href="day_off.php" class="btn btn-danger d-flex align-items-center px-4 py-3 shadow-sm rounded" style="min-width: 200px;">
                                <i class="bx bx-calendar-x me-2" style="font-size: 24px;"></i>
                                <span class="fs-5">Giorni di Chiusura</span>
                            </a>
                            <!-- Pulsante Impostazioni -->
                            <a href="#" class="btn btn-dark d-flex align-items-center px-4 py-3 shadow-sm rounded" style="min-width: 200px;">
                                <i class="bx bx-cog me-2" style="font-size: 24px;"></i>
                                <span class="fs-5">Impostazioni</span>
                            </a>
                        </div>
                    </div>
                </div>
                <!-- Sezione Classi -->
                <div class="card radius-10">
                    <div class="card-header">
                        <div class="d-flex align-items-center">
                            <div>
                                <h6 class="mb-0">Classi della scuola</h6>
                            </div>
                            <div class="ms-auto">
                                <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addClassModal">
                                    Aggiungi Classe
                                </button>
                            </div>
                        </div>
                    </div>
                    <div class="card-body">
                        <?php if (isset($success_message)): ?>
                            <div class="alert alert-success" role="alert">
                                <?php echo $success_message; ?>
                            </div>
                        <?php endif; ?>
                        <?php if (isset($error)): ?>
                            <div class="alert alert-danger" role="alert">
                                <?php echo $error; ?>
                            </div>
                        <?php endif; ?>
                        <div class="table-responsive">
                            <table id="classesTable" class="table table-striped table-bordered">
                                <thead>
                                    <tr>
                                        <th>Categoria</th>
                                        <th>Nome</th>
                                        <th>Descrizione</th>
                                        <th>Foto</th>
                                        <th>Livello</th>
                                        <th>Durata (min)</th>
                                        <th>Posti Massimi</th> <!-- Nuova colonna -->
                                        <th>Giorni</th>
                                        <th>Orario</th>
                                        <!-- Rimossi Inizio e Fine -->
                                        <th>Stato</th>
                                        <th>Insegnante</th>
                                        <th>Azioni</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <?php foreach ($classes as $class): ?>
                                        <tr>
                                            <td><?php echo htmlspecialchars($class['category_name']); ?></td>
                                            <td><?php echo htmlspecialchars($class['name']); ?></td>
                                            <td><?php echo htmlspecialchars($class['description'] ?? ''); ?></td>
                                            <td>
                                                <?php if ($class['photo']): ?>
                                                    <img src="<?php echo htmlspecialchars($class['photo']); ?>" alt="Foto Classe" style="max-width: 50px; max-height: 50px;">
                                                <?php else: ?>
                                                    Nessuna foto
                                                <?php endif; ?>
                                            </td>
                                            <td><?php echo htmlspecialchars($class['level']); ?></td>
                                            <td><?php echo htmlspecialchars($class['typical_duration'] ?? ''); ?></td>
                                            <td><?php echo htmlspecialchars($class['max_capacity']); ?></td> <!-- Nuova colonna -->
                                            <td><?php echo htmlspecialchars($class['days_of_week']); ?></td>
                                            <td><?php echo htmlspecialchars($class['start_time']); ?></td>
                                            <!-- Rimossi period_start e period_end -->
                                            <td>
                                                <span class="badge <?php echo $class['status'] === 'active' ? 'bg-success' : 'bg-danger'; ?>">
                                                    <?php echo $class['status'] === 'active' ? 'Attivo' : 'Inattivo'; ?>
                                                </span>
                                            </td>
                                            <td>
                                                <?php if ($class['teacher_id']): ?>
                                                    <button type="button" class="btn btn-sm btn-info" data-bs-toggle="modal" data-bs-target="#assignTeacherModal"
                                                        onclick='fillAssignTeacherModal(<?php echo json_encode([
                                                                                            "class_id" => $class['id'],
                                                                                            "teacher_id" => $class['teacher_id']
                                                                                        ]); ?>)'>
                                                        <?php echo htmlspecialchars($class['teacher_first_name'] . ' ' . $class['teacher_last_name']); ?>
                                                    </button>
                                                <?php else: ?>
                                                    <button type="button" class="btn btn-sm btn-secondary" data-bs-toggle="modal" data-bs-target="#assignTeacherModal"
                                                        onclick='fillAssignTeacherModal(<?php echo json_encode([
                                                                                            "class_id" => $class['id'],
                                                                                            "teacher_id" => null
                                                                                        ]); ?>)'>
                                                        Non assegnata
                                                    </button>
                                                <?php endif; ?>
                                            </td>
                                            <td>
                                                <button type="button" class="btn btn-sm btn-warning" data-bs-toggle="modal" data-bs-target="#editClassModal"
                                                    onclick='fillEditModal(<?php echo json_encode([
                                                                                "id" => $class['id'],
                                                                                "class_category_id" => $class['class_category_id'],
                                                                                "name" => htmlspecialchars($class['name'], ENT_QUOTES),
                                                                                "description" => htmlspecialchars($class['description'] ?? '', ENT_QUOTES),
                                                                                "requirements" => htmlspecialchars($class['requirements'] ?? '', ENT_QUOTES),
                                                                                "level" => $class['level'],
                                                                                "typical_duration" => $class['typical_duration'] ?? '',
                                                                                "max_capacity" => $class['max_capacity'],
                                                                                "days_of_week" => htmlspecialchars($class['days_of_week'], ENT_QUOTES),
                                                                                "start_time" => $class['start_time'],
                                                                                "status" => $class['status']
                                                                            ]); ?>)'
                                                    data-bs-toggle="tooltip" data-bs-placement="top" title="Modifica">
                                                    <i class="bx bx-edit"></i>
                                                </button>
                                                <form action="" method="POST" style="display:inline;" onsubmit="return confirm('Sei sicuro di voler eliminare questa classe?');">
                                                    <input type="hidden" name="action" value="delete">
                                                    <input type="hidden" name="id" value="<?php echo $class['id']; ?>">
                                                    <button type="submit" class="btn btn-sm btn-danger" data-bs-toggle="tooltip" data-bs-placement="top" title="Elimina">
                                                        <i class="bx bx-trash"></i>
                                                    </button>
                                                </form>
                                                <button type="button" class="btn btn-sm btn-success" data-bs-toggle="modal" data-bs-target="#propagateClassModal"
                                                    onclick='fillPropagateModal(<?php echo json_encode([
                                                                                    "class_id" => $class['id']
                                                                                ]); ?>)'
                                                    data-bs-toggle="tooltip" data-bs-placement="top" title="Propaga">
                                                    <i class="bx bx-broadcast"></i> Propaga
                                                </button>
                                                <button type="button" class="btn btn-sm btn-danger" data-bs-toggle="modal" data-bs-target="#removePropagationModal"
                                                    onclick='fillRemovePropagationModal(<?php echo json_encode([
                                                                                            "class_id" => $class['id']
                                                                                        ]); ?>)'
                                                    data-bs-toggle="tooltip" data-bs-placement="top" title="Rimuovi Propagazione">
                                                    <i class="bx bx-undo"></i>
                                                </button>
                                                <a href="class_sessions.php?class_id=<?php echo $class['id']; ?>" class="btn btn-sm btn-primary" data-bs-toggle="tooltip" data-bs-placement="top" title="Lezioni">
                                                    <i class="bx bx-calendar-event"></i>
                                                </a>
                                            </td>
                                        </tr>
                                    <?php endforeach; ?>
                                </tbody>
                            </table>
                        </div>
                    </div>
                </div>

                <!-- Spazio per future sezioni -->
                <!-- Puoi aggiungere altre sezioni qui sotto, come statistiche, eventi, ecc. -->
            </div>
        </div>

        <!-- Modale per aggiungere una classe -->
        <div class="modal fade" id="addClassModal" tabindex="-1" aria-labelledby="addClassModalLabel" aria-hidden="true">
            <div class="modal-dialog modal-lg">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="addClassModalLabel">Aggiungi Classe</h5>
                        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                    </div>
                    <form action="" method="POST" enctype="multipart/form-data">
                        <div class="modal-body">
                            <input type="hidden" name="action" value="add">
                            <div class="row">
                                <div class="col-md-6 mb-3">
                                    <label for="add_class_category_id" class="form-label">Categoria</label>
                                    <select class="form-control" id="add_class_category_id" name="class_category_id" required>
                                        <option value="">Seleziona una categoria</option>
                                        <?php foreach ($categories as $category): ?>
                                            <option value="<?php echo $category['id']; ?>"><?php echo htmlspecialchars($category['name']); ?></option>
                                        <?php endforeach; ?>
                                    </select>
                                </div>
                                <div class="col-md-6 mb-3">
                                    <label for="add_name" class="form-label">Nome</label>
                                    <input type="text" class="form-control" id="add_name" name="name" required>
                                </div>
                            </div>
                            <div class="mb-3">
                                <label for="add_description" class="form-label">Descrizione</label>
                                <textarea class="form-control" id="add_description" name="description" rows="3"></textarea>
                            </div>
                            <div class="mb-3">
                                <label for="add_photo" class="form-label">Foto</label>
                                <input type="file" class="form-control" id="add_photo" name="photo" accept="image/*">
                            </div>
                            <div class="mb-3">
                                <label for="add_requirements" class="form-label">Requisiti</label>
                                <textarea class="form-control" id="add_requirements" name="requirements" rows="2"></textarea>
                            </div>
                            <div class="row">
                                <div class="col-md-4 mb-3">
                                    <label for="add_level" class="form-label">Livello</label>
                                    <select class="form-control" id="add_level" name="level" required>
                                        <option value="beginner">Beginner</option>
                                        <option value="intermediate">Intermediate</option>
                                        <option value="advanced">Advanced</option>
                                    </select>
                                </div>
                                <div class="col-md-4 mb-3">
                                    <label for="add_typical_duration" class="form-label">Durata Tipica (min)</label>
                                    <input type="number" class="form-control" id="add_typical_duration" name="typical_duration">
                                </div>
                                <div class="col-md-4 mb-3">
                                    <label for="add_max_capacity" class="form-label">Posti Massimi</label>
                                    <input type="number" class="form-control" id="add_max_capacity" name="max_capacity" min="0" required>
                                </div>
                            </div>
                            <div class="mb-3">
                                <label for="add_days_of_week" class="form-label">Giorni della Settimana</label>
                                <input type="text" class="form-control" id="add_days_of_week" name="days_of_week" placeholder="Es. Lun, Mer, Ven" required>
                            </div>
                            <div class="row">
                                <div class="col-md-12 mb-3">
                                    <label for="add_start_time" class="form-label">Orario di Inizio</label>
                                    <input type="time" class="form-control" id="add_start_time" name="start_time" required>
                                </div>
                                <!-- Rimossi period_start e period_end -->
                            </div>
                            <div class="mb-3">
                                <label for="add_status" class="form-label">Stato</label>
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" id="add_status" name="status" value="active" checked>
                                    <label class="form-check-label" for="add_status">Attivo</label>
                                </div>
                            </div>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Chiudi</button>
                            <button type="submit" class="btn btn-primary">Aggiungi</button>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <!-- Modale per modificare una classe -->
        <div class="modal fade" id="editClassModal" tabindex="-1" aria-labelledby="editClassModalLabel" aria-hidden="true">
            <div class="modal-dialog modal-lg">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="editClassModalLabel">Modifica Classe</h5>
                        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                    </div>
                    <form action="" method="POST" enctype="multipart/form-data">
                        <div class="modal-body">
                            <input type="hidden" name="action" value="edit">
                            <input type="hidden" name="id" id="edit_id">
                            <div class="row">
                                <div class="col-md-6 mb-3">
                                    <label for="edit_class_category_id" class="form-label">Categoria</label>
                                    <select class="form-control" id="edit_class_category_id" name="class_category_id" required>
                                        <option value="">Seleziona una categoria</option>
                                        <?php foreach ($categories as $category): ?>
                                            <option value="<?php echo $category['id']; ?>"><?php echo htmlspecialchars($category['name']); ?></option>
                                        <?php endforeach; ?>
                                    </select>
                                </div>
                                <div class="col-md-6 mb-3">
                                    <label for="edit_name" class="form-label">Nome</label>
                                    <input type="text" class="form-control" id="edit_name" name="name" required>
                                </div>
                            </div>
                            <div class="mb-3">
                                <label for="edit_description" class="form-label">Descrizione</label>
                                <textarea class="form-control" id="edit_description" name="description" rows="3"></textarea>
                            </div>
                            <div class="mb-3">
                                <label for="edit_photo" class="form-label">Foto</label>
                                <input type="file" class="form-control" id="edit_photo" name="photo" accept="image/*">
                            </div>
                            <div class="mb-3">
                                <label for="edit_requirements" class="form-label">Requisiti</label>
                                <textarea class="form-control" id="edit_requirements" name="requirements" rows="2"></textarea>
                            </div>
                            <div class="row">
                                <div class="col-md-4 mb-3">
                                    <label for="edit_level" class="form-label">Livello</label>
                                    <select class="form-control" id="edit_level" name="level" required>
                                        <option value="beginner">Beginner</option>
                                        <option value="intermediate">Intermediate</option>
                                        <option value="advanced">Advanced</option>
                                    </select>
                                </div>
                                <div class="col-md-4 mb-3">
                                    <label for="edit_typical_duration" class="form-label">Durata Tipica (min)</label>
                                    <input type="number" class="form-control" id="edit_typical_duration" name="typical_duration">
                                </div>
                                <div class="col-md-4 mb-3">
                                    <label for="edit_max_capacity" class="form-label">Posti Massimi</label>
                                    <input type="number" class="form-control" id="edit_max_capacity" name="max_capacity" min="0" required>
                                </div>
                            </div>
                            <div class="mb-3">
                                <label for="edit_days_of_week" class="form-label">Giorni della Settimana</label>
                                <input type="text" class="form-control" id="edit_days_of_week" name="days_of_week" required>
                            </div>
                            <div class="row">
                                <div class="col-md-12 mb-3">
                                    <label for="edit_start_time" class="form-label">Orario di Inizio</label>
                                    <input type="time" class="form-control" id="edit_start_time" name="start_time" required>
                                </div>
                                <!-- Rimossi period_start e period_end -->
                            </div>
                            <div class="mb-3">
                                <label for="edit_status" class="form-label">Stato</label>
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" id="edit_status" name="status" value="active">
                                    <label class="form-check-label" for="edit_status">Attivo</label>
                                </div>
                            </div>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Chiudi</button>
                            <button type="submit" class="btn btn-primary">Salva Modifiche</button>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <!-- Modale per assegnare un insegnante -->
        <div class="modal fade" id="assignTeacherModal" tabindex="-1" aria-labelledby="assignTeacherModalLabel" aria-hidden="true">
            <div class="modal-dialog">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="assignTeacherModalLabel">Assegna Insegnante</h5>
                        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                    </div>
                    <form action="" method="POST">
                        <div class="modal-body">
                            <input type="hidden" name="action" value="assign_teacher">
                            <input type="hidden" name="class_id" id="assign_class_id">
                            <div class="mb-3">
                                <label for="assign_teacher_id" class="form-label">Seleziona Insegnante</label>
                                <select class="form-control" id="assign_teacher_id" name="teacher_id">
                                    <option value="">Nessun insegnante (Non assegnata)</option>
                                    <?php foreach ($teachers as $teacher): ?>
                                        <option value="<?php echo $teacher['id']; ?>">
                                            <?php echo htmlspecialchars($teacher['first_name'] . ' ' . $teacher['last_name']); ?>
                                        </option>
                                    <?php endforeach; ?>
                                </select>
                            </div>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Chiudi</button>
                            <button type="submit" class="btn btn-primary">Assegna</button>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <!-- Modale per propagare le sessioni -->
        <div class="modal fade" id="propagateClassModal" tabindex="-1" aria-labelledby="propagateClassModalLabel" aria-hidden="true">
            <div class="modal-dialog">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="propagateClassModalLabel">Propaga Sessioni</h5>
                        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                    </div>
                    <form action="" method="POST">
                        <div class="modal-body">
                            <input type="hidden" name="action" value="propagate_sessions">
                            <input type="hidden" name="class_id" id="propagate_class_id">
                            <div class="mb-3">
                                <label for="propagate_start_date" class="form-label">Data Inizio</label>
                                <input type="date" class="form-control" id="propagate_start_date" name="start_date" required>
                            </div>
                            <div class="mb-3">
                                <label for="propagate_end_date" class="form-label">Data Fine</label>
                                <input type="date" class="form-control" id="propagate_end_date" name="end_date" required>
                            </div>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Chiudi</button>
                            <button type="submit" class="btn btn-success">Propaga</button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
        <!-- Modale per rimuovere una propagazione -->
        <div class="modal fade" id="removePropagationModal" tabindex="-1" aria-labelledby="removePropagationModalLabel" aria-hidden="true">
            <div class="modal-dialog">
                <div class="modal-content">
                    <div class="modal-header">
                        <h5 class="modal-title" id="removePropagationModalLabel">Rimuovi Propagazione</h5>
                        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
                    </div>
                    <form action="" method="POST">
                        <div class="modal-body">
                            <input type="hidden" name="action" value="remove_propagation">
                            <input type="hidden" name="class_id" id="remove_propagation_class_id">
                            <div class="mb-3">
                                <label for="remove_propagation_id" class="form-label">ID Propagazione</label>
                                <input type="text" class="form-control" id="remove_propagation_id" name="propagation_id" required>
                                <small class="form-text text-muted">Inserisci l'ID della propagazione da rimuovere (lo trovi nel messaggio di successo dopo la propagazione).</small>
                            </div>
                        </div>
                        <div class="modal-footer">
                            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Chiudi</button>
                            <button type="submit" class="btn btn-danger">Rimuovi</button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
        <div class="overlay toggle-icon"></div>
        <a href="javaScript:;" class="back-to-top"><i class='bx bxs-up-arrow-alt'></i></a>
        <?php include('include/footer.php'); ?>
    </div>
    <?php include('jsinclude.php'); ?>

    <!-- Script per inizializzare DataTables e gestire i modali -->
    <script>
        $(document).ready(function() {
            $('#classesTable').DataTable({
                "language": {
                    "url": "//cdn.datatables.net/plug-ins/1.10.25/i18n/Italian.json"
                }
            });
        });

        function fillEditModal(data) {
            document.getElementById('edit_id').value = data.id;
            document.getElementById('edit_class_category_id').value = data.class_category_id;
            document.getElementById('edit_name').value = data.name;
            document.getElementById('edit_description').value = data.description;
            document.getElementById('edit_requirements').value = data.requirements;
            document.getElementById('edit_level').value = data.level;
            document.getElementById('edit_typical_duration').value = data.typical_duration;
            document.getElementById('edit_max_capacity').value = data.max_capacity; // Nuovo campo
            document.getElementById('edit_days_of_week').value = data.days_of_week;
            document.getElementById('edit_start_time').value = data.start_time;
            document.getElementById('edit_status').checked = (data.status === 'active');
        }

        function fillAssignTeacherModal(data) {
            document.getElementById('assign_class_id').value = data.class_id;
            document.getElementById('assign_teacher_id').value = data.teacher_id || '';
        }

        function fillPropagateModal(data) {
            document.getElementById('propagate_class_id').value = data.class_id;
        }
    </script>
</body>

</html>