<?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 (o quello attivo)
$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
// ===========================
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;
}

// slug semplice e robusto (senza intl)
function makeSlug(string $str): string
{
    $str = trim($str);
    $str = iconv('UTF-8', 'ASCII//TRANSLIT//IGNORE', $str);
    $str = strtolower($str);
    $str = preg_replace('/[^a-z0-9]+/', '-', $str);
    $str = trim($str, '-');
    return $str ?: 'servizio';
}

// assicura slug unico per shop
function uniqueSlug(PDO $pdo, int $shop_id, string $baseSlug, int $excludeId = 0): string
{
    $slug = $baseSlug;
    $i = 1;

    while (true) {
        if ($excludeId > 0) {
            $stmt = $pdo->prepare("SELECT COUNT(*) FROM services WHERE shop_id = ? AND slug = ? AND id != ?");
            $stmt->execute([$shop_id, $slug, $excludeId]);
        } else {
            $stmt = $pdo->prepare("SELECT COUNT(*) FROM services WHERE shop_id = ? AND slug = ?");
            $stmt->execute([$shop_id, $slug]);
        }
        if ((int)$stmt->fetchColumn() === 0) break;

        $i++;
        $slug = $baseSlug . '-' . $i;
    }
    return $slug;
}

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;
}

function normalizeMoney($val): ?string
{
    if ($val === null) return null;
    $val = trim((string)$val);
    if ($val === '') return null;
    $val = str_replace(',', '.', $val);
    if (!preg_match('/^\d+(\.\d{1,2})?$/', $val)) return null;
    return $val;
}

// ===========================
// 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;

            $name            = trim($_POST['name'] ?? '');
            $description     = trim($_POST['description'] ?? '');
            $duration        = clampInt($_POST['duration_minutes'] ?? null, 5, 600, 30);
            $price           = normalizeMoney($_POST['price'] ?? null);
            $price_max       = normalizeMoney($_POST['price_max'] ?? null);
            $category        = trim($_POST['category'] ?? '');
            $color_hex       = trim($_POST['color_hex'] ?? '');
            $order           = clampInt($_POST['order'] ?? null, 0, 9999, 0);
            $is_active       = isset($_POST['is_active']) ? 1 : 0;

            // Validazioni base
            if ($name === '') {
                setFlash('danger', "Il nome del servizio è obbligatorio.");
                header("Location: services.php");
                exit;
            }
            if ($price === null) {
                setFlash('danger', "Prezzo non valido (usa es. 20 o 20.00).");
                header("Location: services.php");
                exit;
            }
            if ($price_max !== null && (float)$price_max < (float)$price) {
                setFlash('danger', "Il prezzo massimo non può essere inferiore al prezzo.");
                header("Location: services.php");
                exit;
            }
            if ($color_hex !== '' && !preg_match('/^#[0-9A-Fa-f]{6}$/', $color_hex)) {
                setFlash('danger', "Colore non valido. Usa formato tipo #FFAA00.");
                header("Location: services.php");
                exit;
            }

            // slug
            $baseSlug = makeSlug($name);
            $slug = uniqueSlug($pdo, $shop_id, $baseSlug, $id);

            if ($action === 'add') {
                $stmt = $pdo->prepare("
                    INSERT INTO services
                    (shop_id, name, slug, description, duration_minutes, price, price_max, category, is_active, color_hex, `order`)
                    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                ");
                $ok = $stmt->execute([
                    $shop_id,
                    $name,
                    $slug,
                    $description !== '' ? $description : null,
                    $duration,
                    $price,
                    $price_max,
                    $category !== '' ? $category : null,
                    $is_active,
                    $color_hex !== '' ? $color_hex : null,
                    $order
                ]);

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

                $stmt = $pdo->prepare("
                    UPDATE services
                    SET name = ?, slug = ?, description = ?, duration_minutes = ?, price = ?, price_max = ?,
                        category = ?, is_active = ?, color_hex = ?, `order` = ?, updated_at = NOW()
                    WHERE id = ? AND shop_id = ?
                ");
                $ok = $stmt->execute([
                    $name,
                    $slug,
                    $description !== '' ? $description : null,
                    $duration,
                    $price,
                    $price_max,
                    $category !== '' ? $category : null,
                    $is_active,
                    $color_hex !== '' ? $color_hex : null,
                    $order,
                    $id,
                    $shop_id
                ]);

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

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

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

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

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

// ===========================
// Fetch services
// ===========================
$stmt = $pdo->prepare("
    SELECT id, name, slug, description, duration_minutes, price, price_max, category, is_active, color_hex, `order`
    FROM services
    WHERE shop_id = ?
    ORDER BY `order` ASC, name ASC
");
$stmt->execute([$shop_id]);
$services = $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>Servizi - <?= 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">Servizi - <?= htmlspecialchars($shop_name) ?></h6>
                        <div>
                            <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addServiceModal">
                                <i class="bx bx-plus me-1"></i> Aggiungi Servizio
                            </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($services)): ?>
                            <div class="alert alert-info text-center py-4">
                                Non hai ancora creato servizi.<br>
                                Aggiungine uno per renderlo prenotabile.
                            </div>
                        <?php else: ?>
                            <div class="table-responsive">
                                <table id="servicesTable" class="table table-striped table-hover table-bordered">
                                    <thead>
                                        <tr>
                                            <th>Ordine</th>
                                            <th>Nome</th>
                                            <th>Durata</th>
                                            <th>Prezzo</th>
                                            <th>Categoria</th>
                                            <th>Attivo</th>
                                            <th>Colore</th>
                                            <th>Azioni</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        <?php foreach ($services as $s): ?>
                                            <tr>
                                                <td><?= (int)$s['order'] ?></td>
                                                <td>
                                                    <div class="fw-bold"><?= htmlspecialchars($s['name']) ?></div>
                                                    <?php if (!empty($s['description'])): ?>
                                                        <div class="text-muted small"><?= htmlspecialchars($s['description']) ?></div>
                                                    <?php endif; ?>
                                                </td>
                                                <td><?= (int)$s['duration_minutes'] ?> min</td>
                                                <td>
                                                    € <?= htmlspecialchars(number_format((float)$s['price'], 2, ',', '.')) ?>
                                                    <?php if ($s['price_max'] !== null && (float)$s['price_max'] > (float)$s['price']): ?>
                                                        <span class="text-muted">– € <?= htmlspecialchars(number_format((float)$s['price_max'], 2, ',', '.')) ?></span>
                                                    <?php endif; ?>
                                                </td>
                                                <td><?= htmlspecialchars($s['category'] ?? '-') ?></td>
                                                <td>
                                                    <?php if ((int)$s['is_active'] === 1): ?>
                                                        <span class="badge bg-success">Sì</span>
                                                    <?php else: ?>
                                                        <span class="badge bg-secondary">No</span>
                                                    <?php endif; ?>
                                                </td>
                                                <td>
                                                    <?php if (!empty($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="#editServiceModal"
                                                        onclick='fillEditServiceModal(<?= json_encode([
                                                                                            "id" => (int)$s["id"],
                                                                                            "name" => $s["name"] ?? "",
                                                                                            "description" => $s["description"] ?? "",
                                                                                            "duration_minutes" => (int)$s["duration_minutes"],
                                                                                            "price" => (string)$s["price"],
                                                                                            "price_max" => $s["price_max"] !== null ? (string)$s["price_max"] : "",
                                                                                            "category" => $s["category"] ?? "",
                                                                                            "is_active" => (int)$s["is_active"],
                                                                                            "color_hex" => $s["color_hex"] ?? "",
                                                                                            "order" => (int)$s["order"],
                                                                                        ], 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 del servizio?');">
                                                        <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="addServiceModal" tabindex="-1" aria-labelledby="addServiceModalLabel">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header bg-primary text-white">
                    <h5 class="modal-title" id="addServiceModalLabel">Aggiungi Servizio</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-8 mb-3">
                                <label class="form-label fw-bold">Nome <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="name" required placeholder="Es: Taglio Donna">
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Durata (min) <span class="text-danger">*</span></label>
                                <input type="number" class="form-control" name="duration_minutes" min="5" max="600" value="30" required>
                            </div>
                        </div>

                        <div class="mb-3">
                            <label class="form-label fw-bold">Descrizione</label>
                            <textarea class="form-control" name="description" rows="3" placeholder="Dettagli del servizio..."></textarea>
                        </div>

                        <div class="row">
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Prezzo (€) <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="price" required placeholder="Es: 25.00">
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Prezzo max (€)</label>
                                <input type="text" class="form-control" name="price_max" placeholder="Es: 35.00">
                                <div class="form-text">Usalo solo se il prezzo può variare.</div>
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Categoria</label>
                                <input type="text" class="form-control" name="category" placeholder="Es: Donna, Uomo, Colore">
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Colore (hex)</label>
                                <input type="text" class="form-control" name="color_hex" placeholder="#FFAA00">
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Ordine</label>
                                <input type="number" class="form-control" name="order" min="0" max="9999" value="0">
                            </div>
                            <div class="col-md-4 mb-3 d-flex align-items-center">
                                <div class="form-check mt-3">
                                    <input class="form-check-input" type="checkbox" name="is_active" id="add_is_active" checked>
                                    <label class="form-check-label fw-bold" for="add_is_active">
                                        Attivo (prenotabile)
                                    </label>
                                </div>
                            </div>
                        </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="editServiceModal" tabindex="-1" aria-labelledby="editServiceModalLabel">
        <div class="modal-dialog modal-lg">
            <div class="modal-content">
                <div class="modal-header bg-warning text-dark">
                    <h5 class="modal-title" id="editServiceModalLabel">Modifica Servizio</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-8 mb-3">
                                <label class="form-label fw-bold">Nome <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="name" id="edit_name" required>
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Durata (min) <span class="text-danger">*</span></label>
                                <input type="number" class="form-control" name="duration_minutes" id="edit_duration" min="5" max="600" required>
                            </div>
                        </div>

                        <div class="mb-3">
                            <label class="form-label fw-bold">Descrizione</label>
                            <textarea class="form-control" name="description" id="edit_description" rows="3"></textarea>
                        </div>

                        <div class="row">
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Prezzo (€) <span class="text-danger">*</span></label>
                                <input type="text" class="form-control" name="price" id="edit_price" required>
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Prezzo max (€)</label>
                                <input type="text" class="form-control" name="price_max" id="edit_price_max">
                            </div>
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Categoria</label>
                                <input type="text" class="form-control" name="category" id="edit_category">
                            </div>
                        </div>

                        <div class="row">
                            <div class="col-md-4 mb-3">
                                <label class="form-label fw-bold">Colore (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">Ordine</label>
                                <input type="number" class="form-control" name="order" id="edit_order" min="0" max="9999">
                            </div>
                            <div class="col-md-4 mb-3 d-flex align-items-center">
                                <div class="form-check mt-3">
                                    <input class="form-check-input" type="checkbox" name="is_active" id="edit_is_active">
                                    <label class="form-check-label fw-bold" for="edit_is_active">
                                        Attivo (prenotabile)
                                    </label>
                                </div>
                            </div>
                        </div>

                        <div class="alert alert-secondary mb-0">
                            Lo slug viene generato automaticamente dal nome e reso univoco per il salone.
                        </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() {
            $('#servicesTable').DataTable({
                language: {
                    url: '//cdn.datatables.net/plug-ins/1.13.6/i18n/it-IT.json'
                },
                order: [
                    [0, 'asc'],
                    [1, 'asc']
                ]
            });
        });

        function fillEditServiceModal(data) {
            document.getElementById('edit_id').value = data.id;
            document.getElementById('edit_name').value = data.name || '';
            document.getElementById('edit_description').value = data.description || '';
            document.getElementById('edit_duration').value = data.duration_minutes || 30;
            document.getElementById('edit_price').value = data.price || '';
            document.getElementById('edit_price_max').value = data.price_max || '';
            document.getElementById('edit_category').value = data.category || '';
            document.getElementById('edit_color_hex').value = data.color_hex || '';
            document.getElementById('edit_order').value = data.order || 0;

            document.getElementById('edit_is_active').checked = (parseInt(data.is_active, 10) === 1);
        }
    </script>
</body>

</html>