<?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
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;
}

// POST - Salva impostazioni
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    try {
        $show_prices_online             = isset($_POST['show_prices_online']) ? 1 : 0;
        $appointment_slot_interval      = (int)($_POST['appointment_slot_interval'] ?? 30);
        $allow_same_time_multiple       = isset($_POST['allow_same_time_multiple']) ? 1 : 0;
        $min_booking_notice_hours       = (int)($_POST['min_booking_notice_hours'] ?? 2);
        $max_booking_days_ahead         = (int)($_POST['max_booking_days_ahead'] ?? 90);
        $require_appointment_confirmation = isset($_POST['require_appointment_confirmation']) ? 1 : 0;
        $no_show_warning_after          = (int)($_POST['no_show_warning_after'] ?? 3);
        $no_show_block_after            = (int)($_POST['no_show_block_after'] ?? 5);

        // Validazione restrict_start_minutes
        $restrict_start_minutes = trim($_POST['restrict_start_minutes'] ?? '00,30');
        $valid_options = ['any', '00', '00,30', '00,15,30,45'];
        if (!in_array($restrict_start_minutes, $valid_options)) {
            $restrict_start_minutes = '00,30';
        }

        // Validazione intervallo slot
        if ($appointment_slot_interval < 5 || $appointment_slot_interval > 120) {
            $appointment_slot_interval = 30;
        }

        // Controlla esistenza
        $stmt = $pdo->prepare("SELECT id FROM shop_settings WHERE shop_id = ?");
        $stmt->execute([$shop_id]);
        $exists = $stmt->fetchColumn() !== false;

        if ($exists) {
            $stmt = $pdo->prepare("
                UPDATE shop_settings SET
                    show_prices_online = ?,
                    appointment_slot_interval = ?,
                    allow_same_time_multiple = ?,
                    min_booking_notice_hours = ?,
                    max_booking_days_ahead = ?,
                    allowed_start_minutes = ?,
                    require_appointment_confirmation = ?,
                    no_show_warning_after = ?,
                    no_show_block_after = ?,
                    updated_at = NOW()
                WHERE shop_id = ?
            ");
            $ok = $stmt->execute([
                $show_prices_online,
                $appointment_slot_interval,
                $allow_same_time_multiple,
                $min_booking_notice_hours,
                $max_booking_days_ahead,
                $restrict_start_minutes,
                $require_appointment_confirmation,
                $no_show_warning_after,
                $no_show_block_after,
                $shop_id
            ]);
        } else {
            $stmt = $pdo->prepare("
                INSERT INTO shop_settings (
                    shop_id, show_prices_online, appointment_slot_interval,
                    allow_same_time_multiple, min_booking_notice_hours, max_booking_days_ahead,
                    allowed_start_minutes, require_appointment_confirmation,
                    no_show_warning_after, no_show_block_after
                ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
            ");
            $ok = $stmt->execute([
                $shop_id,
                $show_prices_online,
                $appointment_slot_interval,
                $allow_same_time_multiple,
                $min_booking_notice_hours,
                $max_booking_days_ahead,
                $restrict_start_minutes,
                $require_appointment_confirmation,
                $no_show_warning_after,
                $no_show_block_after
            ]);
        }

        setFlash($ok ? 'success' : 'danger', $ok ? "Impostazioni salvate con successo!" : "Errore durante il salvataggio.");
        header("Location: salon_settings.php");
        exit;
    } catch (Throwable $e) {
        setFlash('danger', "Errore: " . $e->getMessage());
        header("Location: salon_settings.php");
        exit;
    }
}

// Fetch impostazioni
$stmt = $pdo->prepare("SELECT * FROM shop_settings WHERE shop_id = ?");
$stmt->execute([$shop_id]);
$settings = $stmt->fetch(PDO::FETCH_ASSOC) ?: [
    'show_prices_online'             => 1,
    'appointment_slot_interval'      => 30,
    'allow_same_time_multiple'       => 0,
    'min_booking_notice_hours'       => 2,
    'max_booking_days_ahead'         => 90,
    'allowed_start_minutes'          => '00,30',
    'require_appointment_confirmation' => 1,
    'no_show_warning_after'          => 3,
    'no_show_block_after'            => 5
];

$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>Impostazioni Salone - <?= htmlspecialchars($shop_name) ?></title>
    <style>
        .settings-card {
            border: none;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }

        .settings-header {
            background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
            color: white;
            padding: 1.8rem 2rem;
        }

        .form-section {
            background: #ffffff;
            padding: 2.5rem;
        }

        .form-group {
            margin-bottom: 2rem;
        }

        .form-label {
            font-weight: 600;
            color: #1f2937;
            margin-bottom: 0.75rem;
            display: block;
        }

        .form-text {
            font-size: 0.9rem;
            color: #6b7280;
            margin-top: 0.5rem;
        }

        .preview-box {
            background: #f9fafb;
            border: 1px solid #e5e7eb;
            border-radius: 10px;
            padding: 1.25rem;
            margin-top: 1rem;
        }

        .preview-slots {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 10px;
        }

        .preview-slot {
            background: #e5e7eb;
            color: #374151;
            padding: 6px 14px;
            border-radius: 9999px;
            font-size: 0.9rem;
            transition: all 0.2s;
        }

        .preview-slot.allowed {
            background: #d1fae5;
            color: #065f46;
            font-weight: 600;
        }

        .btn-save {
            background: linear-gradient(135deg, #10b981 0%, #059669 100%);
            border: none;
            padding: 1rem 2.5rem;
            font-size: 1.15rem;
            font-weight: 600;
            border-radius: 12px;
            transition: all 0.3s;
        }

        .btn-save:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
        }

        .toggle-group {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.25rem 0;
            border-bottom: 1px solid #f3f4f6;
        }

        .toggle-group:last-child {
            border-bottom: none;
        }

        .toggle-label {
            font-size: 1.15rem;
            font-weight: 600;
            color: #111827;
        }

        .form-check-input-lg {
            width: 3.2rem;
            height: 1.7rem;
        }

        .form-check-input-lg:checked {
            background-color: #6366f1;
            border-color: #6366f1;
        }
    </style>
</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 settings-card">
                    <div class="settings-header d-flex justify-content-between align-items-center">
                        <h5 class="mb-0">Impostazioni Salone</h5>
                        <a href="salon_dashboard.php" class="btn btn-light btn-sm px-4">
                            <i class="bx bx-arrow-back me-2"></i> Dashboard
                        </a>
                    </div>

                    <div class="form-section">
                        <?php if ($flash): ?>
                            <div class="alert alert-<?= $flash['type'] ?> alert-dismissible fade show mb-4" role="alert">
                                <?= htmlspecialchars($flash['text']) ?>
                                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
                            </div>
                        <?php endif; ?>

                        <form action="" method="POST">
                            <!-- Visibilità prezzi -->
                            <div class="toggle-group">
                                <label class="toggle-label" for="showPrices">Mostra i prezzi online ai clienti</label>
                                <div class="form-check form-switch form-switch-lg">
                                    <input class="form-check-input form-check-input-lg" type="checkbox" name="show_prices_online" id="showPrices" <?= $settings['show_prices_online'] ? 'checked' : '' ?>>
                                </div>
                            </div>

                            <!-- Richiesta conferma manuale -->
                            <div class="toggle-group">
                                <label class="toggle-label" for="requireConfirmation">Richiedi conferma manuale per ogni nuovo appuntamento</label>
                                <div class="form-check form-switch form-switch-lg">
                                    <input class="form-check-input form-check-input-lg" type="checkbox" name="require_appointment_confirmation" id="requireConfirmation" <?= $settings['require_appointment_confirmation'] ? 'checked' : '' ?>>
                                </div>
                            </div>

                            <!-- Orari inizio -->
                            <div class="form-group mt-4">
                                <label class="form-label" for="restrictSelect">Orari di inizio appuntamenti permessi</label>
                                <select class="form-select form-select-lg" name="restrict_start_minutes" id="restrictSelect">
                                    <option value="any" <?= $settings['allowed_start_minutes'] === 'any' ? 'selected' : '' ?>>Qualsiasi minuto (libero)</option>
                                    <option value="00" <?= $settings['allowed_start_minutes'] === '00' ? 'selected' : '' ?>>Solo ore piene (:00)</option>
                                    <option value="00,30" <?= $settings['allowed_start_minutes'] === '00,30' ? 'selected' : '' ?>>Solo :00 e :30 (ogni mezz'ora piena)</option>
                                    <option value="00,15,30,45" <?= $settings['allowed_start_minutes'] === '00,15,30,45' ? 'selected' : '' ?>>Ogni 15 minuti (:00, :15, :30, :45)</option>
                                </select>
                                <div class="preview-box">
                                    <strong>Anteprima slot orari (es. dalle 9:00):</strong>
                                    <div class="preview-slots" id="previewSlots"></div>
                                </div>
                            </div>

                            <!-- Limiti temporali -->
                            <div class="row g-4 mt-4">
                                <div class="col-md-6 form-group">
                                    <label class="form-label" for="slotInterval">Intervallo slot appuntamenti (minuti)</label>
                                    <input type="number" class="form-control form-control-lg" name="appointment_slot_interval" id="slotInterval" min="5" max="120"
                                        value="<?= (int)$settings['appointment_slot_interval'] ?>">
                                    <div class="form-text">Es: 30 = slot ogni mezz'ora</div>
                                </div>

                                <div class="col-md-6 form-group">
                                    <label class="form-label" for="minNotice">Preavviso minimo prenotazione (ore)</label>
                                    <input type="number" class="form-control form-control-lg" name="min_booking_notice_hours" id="minNotice" min="0" max="72"
                                        value="<?= (int)$settings['min_booking_notice_hours'] ?>">
                                    <div class="form-text">Es: 2 = non prenotabile per oggi se mancano meno di 2 ore.</div>
                                </div>

                                <div class="col-md-6 form-group">
                                    <label class="form-label" for="maxDays">Giorni massimi in anticipo</label>
                                    <input type="number" class="form-control form-control-lg" name="max_booking_days_ahead" id="maxDays" min="7" max="365"
                                        value="<?= (int)$settings['max_booking_days_ahead'] ?>">
                                    <div class="form-text">Es: 90 = massimo 90 giorni da oggi.</div>
                                </div>

                                <div class="col-md-6 form-group">
                                    <label class="form-label" for="allowMultiple">Permetti più appuntamenti allo stesso orario</label>
                                    <div class="form-check form-switch form-switch-lg mt-2">
                                        <input class="form-check-input" type="checkbox" name="allow_same_time_multiple" id="allowMultiple" <?= $settings['allow_same_time_multiple'] ? 'checked' : '' ?>>
                                    </div>
                                    <div class="form-text">Utile se più parrucchieri possono lavorare contemporaneamente sullo stesso slot.</div>
                                </div>
                            </div>

                            <!-- No-show -->
                            <div class="section-title mt-5">Gestione No-Show (assenze)</div>
                            <div class="row g-4">
                                <div class="col-md-6 form-group">
                                    <label class="form-label" for="noShowWarn">Segnala utente dopo quante assenze consecutive</label>
                                    <input type="number" class="form-control form-control-lg" name="no_show_warning_after" id="noShowWarn" min="0" max="20"
                                        value="<?= (int)$settings['no_show_warning_after'] ?>">
                                    <div class="form-text">0 = disattivato. Es: 3 = dopo 3 no-show invia alert al titolare.</div>
                                </div>

                                <div class="col-md-6 form-group">
                                    <label class="form-label" for="noShowBlock">Blocca utente dopo quante assenze consecutive</label>
                                    <input type="number" class="form-control form-control-lg" name="no_show_block_after" id="noShowBlock" min="0" max="50"
                                        value="<?= (int)$settings['no_show_block_after'] ?>">
                                    <div class="form-text">0 = mai bloccare. Es: 5 = dopo 5 no-show impedisce nuove prenotazioni.</div>
                                </div>
                            </div>

                            <!-- Pulsante salva -->
                            <div class="d-grid mt-5">
                                <button type="submit" class="btn btn-save">
                                    <i class="bx bx-save me-2"></i> Salva Impostazioni Salone
                                </button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>

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

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

    <script>
        $(document).ready(function() {
            const restrictSelect = document.getElementById('restrictSelect');
            const previewSlots = document.getElementById('previewSlots');

            function updatePreview() {
                const value = restrictSelect.value;
                previewSlots.innerHTML = '';

                const examples = [{
                        val: 'any',
                        slots: ['9:00', '9:05', '9:10', '9:15', '9:20', '...']
                    },
                    {
                        val: '00',
                        slots: ['9:00', '10:00', '11:00', '12:00']
                    },
                    {
                        val: '00,30',
                        slots: ['9:00', '9:30', '10:00', '10:30', '11:00']
                    },
                    {
                        val: '00,15,30,45',
                        slots: ['9:00', '9:15', '9:30', '9:45', '10:00']
                    }
                ];

                const selected = examples.find(e => e.val === value) || examples[2];

                selected.slots.forEach(slot => {
                    const span = document.createElement('span');
                    span.className = 'preview-slot' + (value !== 'any' ? ' allowed' : '');
                    span.textContent = slot;
                    previewSlots.appendChild(span);
                });
            }

            restrictSelect.addEventListener('change', updatePreview);
            updatePreview(); // init
        });
    </script>
</body>

</html>