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

if (session_status() === PHP_SESSION_NONE) {
    session_start();
}

include('include/headscript.php');

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

// Verifica utente loggato
if (!isset($iduserlogin)) {
    header("Location: login.php");
    exit;
}

// Controlla se esiste almeno un salone
$stmt = $pdo->prepare("SELECT COUNT(*) FROM shops WHERE owner_id = ?");
$stmt->execute([$iduserlogin]);
if ((int)$stmt->fetchColumn() === 0) {
    header("Location: onboarding_salon.php");
    exit;
}

// Prendi il primo salone
$stmt = $pdo->prepare("
    SELECT id, name
    FROM shops
    WHERE owner_id = ?
    ORDER BY created_at ASC
    LIMIT 1
");
$stmt->execute([$iduserlogin]);
$shop = $stmt->fetch(PDO::FETCH_ASSOC);

if (!$shop) {
    die("Errore: salone non trovato.");
}

$shop_id   = (int)$shop['id'];
$shop_name = $shop['name'];

// ===========================
// Helpers (flash, validazioni)
// ===========================
function setFlash(string $type, string $text): void
{
    $_SESSION['flash'] = ['type' => $type, 'text' => $text];
}

function getFlash(): ?array
{
    if (!isset($_SESSION['flash'])) return null;
    $f = $_SESSION['flash'];
    unset($_SESSION['flash']);
    return $f;
}

function clampInt($val, int $min, int $max, int $fallback): int
{
    if ($val === null || $val === '') return $fallback;
    if (!is_numeric($val)) return $fallback;
    $n = (int)$val;
    if ($n < $min) return $min;
    if ($n > $max) return $max;
    return $n;
}

// ===========================
// POST actions (add/edit/delete)
// ===========================
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['action'])) {
    $action = $_POST['action'];

    try {
        if ($action === 'add' || $action === 'edit') {
            $id = ($action === 'edit') ? (int)($_POST['id'] ?? 0) : 0;

            $first_name     = trim($_POST['first_name'] ?? '');
            $last_name      = trim($_POST['last_name'] ?? '');
            $nickname       = trim($_POST['nickname'] ?? '');
            $role           = trim($_POST['role'] ?? '');
            $phone          = trim($_POST['phone'] ?? '');
            $email          = trim($_POST['email'] ?? '');
            $color_hex      = trim($_POST['color_hex'] ?? '');
            $max_app_day    = clampInt($_POST['max_appointments_per_day'] ?? null, 1, 50, 10);
            $can_book_online = isset($_POST['can_book_online']) ? 1 : 0;
            $is_active      = isset($_POST['is_active']) ? 1 : 0;
            $notes          = trim($_POST['notes'] ?? '');

            // Validazioni base
            if ($first_name === '' || $last_name === '') {
                setFlash('danger', "Nome e Cognome sono obbligatori.");
                header("Location: staff.php");
                exit;
            }
            if ($color_hex !== '' && !preg_match('/^#[0-9A-Fa-f]{6}$/', $color_hex)) {
                setFlash('danger', "Colore non valido. Usa formato #FFAA00.");
                header("Location: staff.php");
                exit;
            }

            if ($action === 'add') {
                $stmt = $pdo->prepare("
                    INSERT INTO staff
                    (shop_id, first_name, last_name, nickname, role, phone, email, color_hex, 
                     max_appointments_per_day, can_book_online, is_active, notes)
                    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                ");
                $ok = $stmt->execute([
                    $shop_id,
                    $first_name,
                    $last_name,
                    $nickname ?: null,
                    $role ?: null,
                    $phone ?: null,
                    $email ?: null,
                    $color_hex ?: null,
                    $max_app_day,
                    $can_book_online,
                    $is_active,
                    $notes ?: null
                ]);

                setFlash($ok ? 'success' : 'danger', $ok ? "Collaboratore aggiunto!" : "Errore durante l'aggiunta.");
                header("Location: staff.php");
                exit;
            } else {
                if ($id <= 0) {
                    setFlash('danger', "ID non valido.");
                    header("Location: staff.php");
                    exit;
                }

                $stmt = $pdo->prepare("
                    UPDATE staff
                    SET first_name = ?, last_name = ?, nickname = ?, role = ?, phone = ?, email = ?,
                        color_hex = ?, max_appointments_per_day = ?, can_book_online = ?, is_active = ?,
                        notes = ?, updated_at = NOW()
                    WHERE id = ? AND shop_id = ?
                ");
                $ok = $stmt->execute([
                    $first_name,
                    $last_name,
                    $nickname ?: null,
                    $role ?: null,
                    $phone ?: null,
                    $email ?: null,
                    $color_hex ?: null,
                    $max_app_day,
                    $can_book_online,
                    $is_active,
                    $notes ?: null,
                    $id,
                    $shop_id
                ]);

                setFlash($ok ? 'success' : 'danger', $ok ? "Collaboratore aggiornato!" : "Errore durante l'aggiornamento.");
                header("Location: staff.php");
                exit;
            }
        }

        if ($action === 'delete') {
            $id = (int)($_POST['id'] ?? 0);
            if ($id <= 0) {
                setFlash('danger', "ID non valido.");
                header("Location: staff.php");
                exit;
            }

            $stmt = $pdo->prepare("DELETE FROM staff WHERE id = ? AND shop_id = ?");
            $ok = $stmt->execute([$id, $shop_id]);

            setFlash($ok ? 'success' : 'danger', $ok ? "Collaboratore eliminato!" : "Errore durante l'eliminazione.");
            header("Location: staff.php");
            exit;
        }

        setFlash('danger', "Azione non valida.");
        header("Location: staff.php");
        exit;
    } catch (Throwable $e) {
        setFlash('danger', "Errore: " . $e->getMessage());
        header("Location: staff.php");
        exit;
    }
}

// ===========================
// Fetch staff
// ===========================
$stmt = $pdo->prepare("
    SELECT id, first_name, last_name, nickname, role, phone, email, color_hex,
           max_appointments_per_day, can_book_online, is_active, notes
    FROM staff
    WHERE shop_id = ?
    ORDER BY last_name ASC, first_name ASC
");
$stmt->execute([$shop_id]);
$staff_list = $stmt->fetchAll(PDO::FETCH_ASSOC);

$flash = getFlash();
?>

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

<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'); ?>
    <title>Staff / Parrucchieri - <?= htmlspecialchars($shop_name) ?></title>
</head>

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

        <div class="page-wrapper">
            <div class="page-content">
                <div class="card radius-10">
                    <div class="card-header bg-light d-flex align-items-center justify-content-between">
                        <h6 class="mb-0">Staff / Parrucchieri - <?= htmlspecialchars($shop_name) ?></h6>
                        <div>
                            <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addStaffModal">
                                <i class="bx bx-plus me-1"></i> Aggiungi Collaboratore
                            </button>
                            <a href="salon_dashboard.php" class="btn btn-outline-secondary ms-2">
                                <i class="bx bx-arrow-back me-1"></i> Dashboard
                            </a>
                        </div>
                    </div>

                    <div class="card-body">
                        <?php if ($flash): ?>
                            <div class="alert alert-<?= htmlspecialchars($flash['type']) ?> alert-dismissible fade show" role="alert">
                                <?= htmlspecialchars($flash['text']) ?>
                                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                            </div>
                        <?php endif; ?>

                        <?php if (empty($staff_list)): ?>
                            <div class="alert alert-info text-center py-4">
                                Non hai ancora aggiunto collaboratori.<br>
                                Aggiungine uno per gestire le prenotazioni.
                            </div>
                        <?php else: ?>
                            <div class="table-responsive">
                                <table id="staffTable" class="table table-striped table-hover table-bordered">
                                    <thead>
                                        <tr>
                                            <th>Nome</th>
                                            <th>Ruolo</th>
                                            <th>Telefono / Email</th>
                                            <th>Max app/giorno</th>
                                            <th>Online</th>
                                            <th>Attivo</th>
                                            <th>Colore</th>
                                            <th>Azioni</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        <?php foreach ($staff_list as $s): ?>
                                            <tr>
                                                <td>
                                                    <div class="fw-bold">
                                                        <?= htmlspecialchars($s['first_name'] . ' ' . $s['last_name']) ?>
                                                        <?php if ($s['nickname']): ?>
                                                            <small class="text-muted">(@<?= htmlspecialchars($s['nickname']) ?>)</small>
                                                        <?php endif; ?>
                                                    </div>
                                                </td>
                                                <td><?= htmlspecialchars($s['role'] ?: '-') ?></td>
                                                <td>
                                                    <?= htmlspecialchars($s['phone'] ?: '-') ?><br>
                                                    <small><?= htmlspecialchars($s['email'] ?: '-') ?></small>
                                                </td>
                                                <td><?= (int)$s['max_appointments_per_day'] ?></td>
                                                <td>
                                                    <?php if ((int)$s['can_book_online'] === 1): ?>
                                                        <span class="badge bg-success">Sì</span>
                                                    <?php else: ?>
                                                        <span class="badge bg-secondary">No</span>
                                                    <?php endif; ?>
                                                </td>
                                                <td>
                                                    <?php if ((int)$s['is_active'] === 1): ?>
                                                        <span class="badge bg-success">Sì</span>
                                                    <?php else: ?>
                                                        <span class="badge bg-danger">No</span>
                                                    <?php endif; ?>
                                                </td>
                                                <td>
                                                    <?php if (!empty($s['color_hex'])): ?>
                                                        <span class="badge" style="background: <?= htmlspecialchars($s['color_hex']) ?>;">
                                                            <?= htmlspecialchars($s['color_hex']) ?>
                                                        </span>
                                                    <?php else: ?>
                                                        <span class="text-muted">-</span>
                                                    <?php endif; ?>
                                                </td>
                                                <td>
                                                    <button type="button" class="btn btn-sm btn-warning me-1"
                                                        data-bs-toggle="modal" data-bs-target="#editStaffModal"
                                                        onclick='fillEditStaffModal(<?= json_encode([
                                                                                        "id" => (int)$s["id"],
                                                                                        "first_name" => $s["first_name"],
                                                                                        "last_name" => $s["last_name"],
                                                                                        "nickname" => $s["nickname"] ?? "",
                                                                                        "role" => $s["role"] ?? "",
                                                                                        "phone" => $s["phone"] ?? "",
                                                                                        "email" => $s["email"] ?? "",
                                                                                        "color_hex" => $s["color_hex"] ?? "",
                                                                                        "max_appointments_per_day" => (int)$s["max_appointments_per_day"],
                                                                                        "can_book_online" => (int)$s["can_book_online"],
                                                                                        "is_active" => (int)$s["is_active"],
                                                                                        "notes" => $s["notes"] ?? ""
                                                                                    ], JSON_HEX_APOS | JSON_HEX_QUOT) ?>)'>
                                                        <i class="bx bx-edit"></i> Modifica
                                                    </button>

                                                    <form action="" method="POST" style="display:inline;"
                                                        onsubmit="return confirm('Confermi l\'eliminazione di questo collaboratore?');">
                                                        <input type="hidden" name="action" value="delete">
                                                        <input type="hidden" name="id" value="<?= (int)$s['id'] ?>">
                                                        <button type="submit" class="btn btn-sm btn-danger">
                                                            <i class="bx bx-trash"></i> Elimina
                                                        </button>
                                                    </form>
                                                </td>
                                            </tr>
                                        <?php endforeach; ?>
                                    </tbody>
                                </table>
                            </div>
                        <?php endif; ?>
                    </div>
                </div>
            </div>
        </div>

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

    <!-- Modal Aggiungi -->
    <div class="modal fade" id="addStaffModal" tabindex="-1" aria-labelledby="addStaffModalLabel">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header bg-primary text-white">
                    <h5 class="modal-title" id="addStaffModalLabel">Aggiungi Collaboratore</h5>
                    <button type="button" class="btn-close btn-close-white" data-bs-dismiss="modal"></button>
                </div>
                <form action="" method="POST">
                    <div class="modal-body">
                        <input type="hidden" name="action" value="add">

                        <div class="row">
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Nome <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="first_name" required>
                            </div>
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Cognome <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="last_name" required>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Nickname / Nome d'arte</label>
                                <input type="text" class="form-control" name="nickname" placeholder="Es: Sara la Colorista">
                            </div>
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Ruolo</label>
                                <input type="text" class="form-control" name="role" placeholder="Es: Parrucchiere Senior">
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Telefono</label>
                                <input type="text" class="form-control" name="phone">
                            </div>
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Email</label>
                                <input type="email" class="form-control" name="email">
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Colore calendario (hex)</label>
                                <input type="text" class="form-control" name="color_hex" placeholder="#3788d8">
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Max app/giorno</label>
                                <input type="number" class="form-control" name="max_appointments_per_day" min="1" max="50" value="10">
                            </div>
                            <div class="col-md-4 mb-3 d-flex align-items-center gap-3 mt-4">
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="can_book_online" id="add_can_book" checked>
                                    <label class="form-check-label" for="add_can_book">Prenotabile online</label>
                                </div>
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="is_active" id="add_is_active" checked>
                                    <label class="form-check-label" for="add_is_active">Attivo</label>
                                </div>
                            </div>
                        </div>

                        <div class="mb-3">
                            <label class="form-label fw-bold">Note interne</label>
                            <textarea class="form-control" name="notes" rows="2" placeholder="Es: solo su appuntamento, non lavora lunedì..."></textarea>
                        </div>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Annulla</button>
                        <button type="submit" class="btn btn-primary">Aggiungi</button>
                    </div>
                </form>
            </div>
        </div>
    </div>

    <!-- Modal Modifica -->
    <div class="modal fade" id="editStaffModal" tabindex="-1" aria-labelledby="editStaffModalLabel">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header bg-warning text-dark">
                    <h5 class="modal-title" id="editStaffModalLabel">Modifica Collaboratore</h5>
                    <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                </div>
                <form action="" method="POST">
                    <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 class="form-label fw-bold">Nome <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="first_name" id="edit_first_name" required>
                            </div>
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Cognome <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="last_name" id="edit_last_name" required>
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Nickname / Nome d'arte</label>
                                <input type="text" class="form-control" name="nickname" id="edit_nickname">
                            </div>
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Ruolo</label>
                                <input type="text" class="form-control" name="role" id="edit_role">
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Telefono</label>
                                <input type="text" class="form-control" name="phone" id="edit_phone">
                            </div>
                            <div class="col-md-6 mb-3">
                                <label class="form-label fw-bold">Email</label>
                                <input type="email" class="form-control" name="email" id="edit_email">
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Colore calendario (hex)</label>
                                <input type="text" class="form-control" name="color_hex" id="edit_color_hex">
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Max app/giorno</label>
                                <input type="number" class="form-control" name="max_appointments_per_day" id="edit_max_app" min="1" max="50">
                            </div>
                            <div class="col-md-4 mb-3 d-flex align-items-center gap-3 mt-4">
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="can_book_online" id="edit_can_book">
                                    <label class="form-check-label" for="edit_can_book">Prenotabile online</label>
                                </div>
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" name="is_active" id="edit_is_active">
                                    <label class="form-check-label" for="edit_is_active">Attivo</label>
                                </div>
                            </div>
                        </div>

                        <div class="mb-3">
                            <label class="form-label fw-bold">Note interne</label>
                            <textarea class="form-control" name="notes" id="edit_notes" rows="2"></textarea>
                        </div>
                    </div>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Annulla</button>
                        <button type="submit" class="btn btn-warning">Salva Modifiche</button>
                    </div>
                </form>
            </div>
        </div>
    </div>

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

    <script>
        $(document).ready(function() {
            $('#staffTable').DataTable({
                language: {
                    url: '//cdn.datatables.net/plug-ins/1.13.6/i18n/it-IT.json'
                },
                order: [
                    [1, 'asc']
                ]
            });
        });

        function fillEditStaffModal(data) {
            document.getElementById('edit_id').value = data.id;
            document.getElementById('edit_first_name').value = data.first_name || '';
            document.getElementById('edit_last_name').value = data.last_name || '';
            document.getElementById('edit_nickname').value = data.nickname || '';
            document.getElementById('edit_role').value = data.role || '';
            document.getElementById('edit_phone').value = data.phone || '';
            document.getElementById('edit_email').value = data.email || '';
            document.getElementById('edit_color_hex').value = data.color_hex || '';
            document.getElementById('edit_max_app').value = data.max_appointments_per_day || 10;
            document.getElementById('edit_can_book').checked = (parseInt(data.can_book_online, 10) === 1);
            document.getElementById('edit_is_active').checked = (parseInt(data.is_active, 10) === 1);
            document.getElementById('edit_notes').value = data.notes || '';
        }
    </script>
</body>

</html>