<?php
ini_set('display_errors', 1);
error_reporting(E_ALL);

include('include/headscript.php');

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

function h($v)
{
    return htmlspecialchars((string)$v, ENT_QUOTES, 'UTF-8');
}

function formatDateIT($d)
{
    if (!$d || $d === '0000-00-00') return '—';
    return date('d/m/Y', strtotime($d));
}

function formatDateTimeIT($d)
{
    if (!$d || $d === '0000-00-00 00:00:00') return '—';
    return date('d/m/Y H:i', strtotime($d));
}

function getRevisionLabel($rev)
{
    $rev = trim((string)$rev);
    return $rev !== '' ? $rev : '0';
}

function getWorksheetLabel($num)
{
    $num = (int)$num;
    return $num > 0 ? 'FL' . $num : '—';
}

// AJAX HANDLERS
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['ajax']) && $_POST['ajax'] == '1') {
    header('Content-Type: application/json; charset=utf-8');

    $action = $_POST['action'] ?? '';

    try {
        if ($action === 'delete') {
            $id = (int)($_POST['id'] ?? 0);
            if ($id <= 0) {
                echo json_encode(['success' => false, 'message' => 'ID non valido']);
                exit;
            }

            $stmt = $pdo->prepare("DELETE FROM work_sheets WHERE id = ?");
            $stmt->execute([$id]);

            echo json_encode(['success' => true]);
            exit;
        }

        if ($action === 'create_revision') {
            $id = (int)($_POST['id'] ?? 0);
            if ($id <= 0) {
                echo json_encode(['success' => false, 'message' => 'ID non valido']);
                exit;
            }

            $stmt = $pdo->prepare("
                SELECT *
                FROM work_sheets
                WHERE id = ?
                LIMIT 1
            ");
            $stmt->execute([$id]);
            $source = $stmt->fetch(PDO::FETCH_ASSOC);

            if (!$source) {
                echo json_encode(['success' => false, 'message' => 'Foglio non trovato']);
                exit;
            }

            if (($source['worksheet_status'] ?? 'active') !== 'active') {
                echo json_encode([
                    'success' => false,
                    'message' => 'Questo foglio è già inattivo/revisionato e non può essere revisionato di nuovo'
                ]);
                exit;
            }

            $idmatrice = (int)$source['idmatrice'];
            if ($idmatrice <= 0) {
                echo json_encode(['success' => false, 'message' => 'ID matrice non valido']);
                exit;
            }

            $worksheetNumber = (int)($source['worksheet_number'] ?? 0);
            if ($worksheetNumber <= 0) {
                echo json_encode(['success' => false, 'message' => 'Numero foglio non valido o non valorizzato']);
                exit;
            }

            $pdo->beginTransaction();

            // Trova la prossima revisione sulla stessa numerazione foglio
            $stmtMaxRev = $pdo->prepare("
                SELECT revision_code
                FROM work_sheets
                WHERE worksheet_number = ?
                ORDER BY
                    CASE
                        WHEN revision_code IS NULL OR revision_code = '' THEN 0
                        WHEN revision_code REGEXP '^R[0-9]+$' THEN CAST(SUBSTRING(revision_code, 2) AS UNSIGNED)
                        ELSE 0
                    END DESC,
                    id DESC
                LIMIT 1
            ");
            $stmtMaxRev->execute([$worksheetNumber]);
            $lastRevisionCode = $stmtMaxRev->fetchColumn();

            $nextRevisionNumber = 1;
            if ($lastRevisionCode && preg_match('/^R(\d+)$/', $lastRevisionCode, $m)) {
                $nextRevisionNumber = ((int)$m[1]) + 1;
            }

            $newRevisionCode = 'R' . $nextRevisionNumber;

            // Rendi inattivo il foglio corrente
            $stmtDeactivate = $pdo->prepare("
                UPDATE work_sheets
                SET worksheet_status = 'inactive'
                WHERE id = ?
            ");
            $stmtDeactivate->execute([$id]);

            // Crea clone del foglio mantenendo lo stesso worksheet_number
            $stmtInsert = $pdo->prepare("
                INSERT INTO work_sheets (
                    worksheet_number,
                    idmatrice,
                    worksheet_date,
                    customer_name,
                    profile_type_code,
                    revision_code,
                    worksheet_status,
                    marking,
                    prod_control_measure_settings,
                    control_frequency_cut,
                    control_frequency_drawing,
                    control_frequency_jig,
                    control_mode_jig,
                    requested_package_code,
                    meters_per_package,
                    meters_per_package_tolerance,
                    meters_per_package_notes,
                    box_type,
                    packages_or_pieces_per_box,
                    meters_per_box,
                    pallet_type,
                    boxes_or_packages_per_pallet,
                    speed_expected_kg_h,
                    speed_actual_kg_h,
                    speed_expected_m_h,
                    speed_actual_m_h,
                    approved_by,
                    notes
                ) VALUES (
                    ?, ?, ?, ?, ?, ?, ?,
                    ?, ?, ?, ?, ?, ?,
                    ?, ?, ?, ?, ?, ?, ?, ?, ?,
                    ?, ?, ?, ?, ?, ?
                )
            ");

            $stmtInsert->execute([
                $worksheetNumber,
                $source['idmatrice'],
                $source['worksheet_date'],
                $source['customer_name'],
                $source['profile_type_code'],
                $newRevisionCode,
                'active',
                $source['marking'],
                $source['prod_control_measure_settings'],
                $source['control_frequency_cut'],
                $source['control_frequency_drawing'],
                $source['control_frequency_jig'],
                $source['control_mode_jig'],
                $source['requested_package_code'],
                $source['meters_per_package'],
                $source['meters_per_package_tolerance'],
                $source['meters_per_package_notes'],
                $source['box_type'],
                $source['packages_or_pieces_per_box'],
                $source['meters_per_box'],
                $source['pallet_type'],
                $source['boxes_or_packages_per_pallet'],
                $source['speed_expected_kg_h'],
                $source['speed_actual_kg_h'],
                $source['speed_expected_m_h'],
                $source['speed_actual_m_h'],
                $source['approved_by'],
                $source['notes']
            ]);

            $newWorksheetId = (int)$pdo->lastInsertId();

            // Duplica le mescole collegate
            $stmtMixes = $pdo->prepare("
                SELECT
                    idmescola,
                    mix_position,
                    mix_weight_g_m,
                    required_density,
                    required_hardness_shore_a,
                    lubrication_type,
                    lubrication_notes
                FROM work_sheet_mescole
                WHERE worksheet_id = ?
                ORDER BY mix_position ASC, id ASC
            ");
            $stmtMixes->execute([$id]);
            $mixRows = $stmtMixes->fetchAll(PDO::FETCH_ASSOC);

            if ($mixRows) {
                $stmtInsertMix = $pdo->prepare("
                    INSERT INTO work_sheet_mescole (
                        worksheet_id,
                        idmescola,
                        mix_position,
                        mix_weight_g_m,
                        required_density,
                        required_hardness_shore_a,
                        lubrication_type,
                        lubrication_notes
                    ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)
                ");

                foreach ($mixRows as $mix) {
                    $stmtInsertMix->execute([
                        $newWorksheetId,
                        $mix['idmescola'],
                        $mix['mix_position'],
                        $mix['mix_weight_g_m'],
                        $mix['required_density'],
                        $mix['required_hardness_shore_a'],
                        $mix['lubrication_type'],
                        $mix['lubrication_notes']
                    ]);
                }
            }

            $pdo->commit();

            echo json_encode([
                'success' => true,
                'message' => 'Revisione creata correttamente',
                'new_id' => $newWorksheetId,
                'new_revision_code' => $newRevisionCode,
                'worksheet_number_label' => 'FL' . $worksheetNumber
            ]);
            exit;
        }

        echo json_encode(['success' => false, 'message' => 'Azione sconosciuta']);
        exit;
    } catch (Exception $e) {
        if ($pdo->inTransaction()) {
            $pdo->rollBack();
        }
        echo json_encode(['success' => false, 'message' => $e->getMessage()]);
        exit;
    }
}

// Worksheets list + row count
$worksheets = $pdo->query("
    SELECT
        ws.id,
        ws.worksheet_number,
        ws.worksheet_date,
        ws.customer_name,
        ws.profile_type_code,
        ws.revision_code,
        ws.worksheet_status,
        ws.approved_by,
        ws.created_at,
        ws.updated_at,
        m.nome AS matrice_nome,
        m.cliente AS matrice_cliente,
        (
            SELECT COUNT(*)
            FROM work_sheet_mescole wsm
            WHERE wsm.worksheet_id = ws.id
        ) AS mixes_count
    FROM work_sheets ws
    LEFT JOIN matrice m ON ws.idmatrice = m.id
    ORDER BY ws.worksheet_number DESC, ws.id DESC
")->fetchAll(PDO::FETCH_ASSOC);
?>

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

<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <?php include('cssinclude.php'); ?>
    <title>Fogli di Lavoro</title>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/sweetalert2@11"></script>

    <link rel="stylesheet" href="https://cdn.datatables.net/1.13.6/css/dataTables.bootstrap5.min.css">
    <script src="https://cdn.datatables.net/1.13.6/js/jquery.dataTables.min.js"></script>
    <script src="https://cdn.datatables.net/1.13.6/js/dataTables.bootstrap5.min.js"></script>

    <link href="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/css/select2.min.css" rel="stylesheet" />
    <link href="https://cdn.jsdelivr.net/npm/@ttskch/select2-bootstrap4-theme@1.5.2/dist/select2-bootstrap4.min.css" rel="stylesheet" />
    <script src="https://cdn.jsdelivr.net/npm/select2@4.1.0-rc.0/dist/js/select2.min.js"></script>

    <style>
        body {
            font-size: 0.95rem;
            background: #f8fafc;
        }

        .card {
            border-radius: 16px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .back-dashboard {
            background: #cfe3ff !important;
            color: #1f2d3d !important;
            border: 1px solid #bcd4f4 !important;
            border-radius: 10px;
            font-weight: 600;
            padding: 10px 18px;
        }

        .btn-add {
            background: #0d6efd;
            color: white;
            border-radius: 8px;
            padding: 10px 20px;
            font-weight: 500;
        }

        .btn-add:hover {
            color: #fff;
        }

        .table thead {
            background: #cfe3ff;
            color: #1f2d3d;
        }

        .badge-revision {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 48px;
            padding: 6px 10px;
            border-radius: 999px;
            background: #e7f1ff;
            color: #0d6efd;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .badge-fl {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 68px;
            padding: 6px 12px;
            border-radius: 999px;
            background: #e8f7ee;
            color: #198754;
            font-weight: 800;
            font-size: 0.86rem;
        }

        .badge-status-active {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 90px;
            padding: 6px 10px;
            border-radius: 999px;
            background: #d1e7dd;
            color: #0f5132;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .badge-status-inactive {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 90px;
            padding: 6px 10px;
            border-radius: 999px;
            background: #f8d7da;
            color: #842029;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .row-inactive {
            opacity: 0.78;
            background: #fcfcfd !important;
        }

        .btn-rev {
            border-radius: 8px;
            font-weight: 700;
        }

        .btn-rev[disabled] {
            cursor: not-allowed;
            opacity: 0.65;
        }

        .table td,
        .table th {
            vertical-align: middle;
        }

        /* Select2 Bootstrap sizing alignment */
        .select2-container .select2-selection--single {
            height: calc(2.375rem + 2px);
            padding: 0.375rem 0.75rem;
            border: 1px solid #ced4da;
            border-radius: 0.375rem;
            display: flex;
            align-items: center;
        }

        .select2-container--default .select2-selection--single .select2-selection__rendered {
            line-height: 1.6;
            padding-left: 0;
        }

        .select2-container--default .select2-selection--single .select2-selection__arrow {
            height: calc(2.375rem + 2px);
        }

        .select2-container {
            width: 100% !important;
        }
    </style>
</head>

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

        <div class="page-wrapper">
            <div class="page-content">
                <div class="card p-3">
                    <div class="card-header d-flex justify-content-between align-items-center">
                        <h5 class="mb-0">Fogli di Lavoro</h5>
                        <button class="btn back-dashboard" onclick="location.href='production_dashboard.php'">↩️ Dashboard</button>
                    </div>

                    <div class="card-body">
                        <div class="d-flex justify-content-between align-items-center mb-3">
                            <h6 class="fw-semibold mb-0">Storico</h6>
                            <button class="btn btn-add" onclick="location.href='manage-worksheet.php'">➕ Nuovo Foglio</button>
                        </div>

                        <div class="table-responsive">
                            <table id="tabellaWorksheets" class="table table-striped table-bordered align-middle">
                                <thead>
                                    <tr>
                                        <th>Foglio</th>
                                        <th>Rev</th>
                                        <th>Data</th>
                                        <th>Matrice/Profilo</th>
                                        <th>Cliente</th>
                                        <th>Codice Profilo</th>
                                        <th>Stato</th>
                                        <th>Mescole</th>
                                        <th>Visto</th>
                                        <th>Creato</th>
                                        <th>Azioni</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <?php foreach ($worksheets as $ws): ?>
                                        <?php
                                        $status = trim((string)($ws['worksheet_status'] ?? 'active'));
                                        if ($status === '') $status = 'active';

                                        $isActive = ($status === 'active');
                                        $revisionLabel = getRevisionLabel($ws['revision_code'] ?? '');
                                        $worksheetLabel = getWorksheetLabel($ws['worksheet_number'] ?? 0);
                                        ?>
                                        <tr class="<?= !$isActive ? 'row-inactive' : '' ?>">
                                            <td>
                                                <span class="badge-fl"><?= h($worksheetLabel) ?></span>
                                            </td>
                                            <td>
                                                <span class="badge-revision"><?= h($revisionLabel) ?></span>
                                            </td>
                                            <td><?= h(formatDateIT($ws['worksheet_date'] ?? '')) ?></td>
                                            <td><?= h($ws['matrice_nome'] ?? '-') ?></td>
                                            <td><?= h($ws['customer_name'] ?: ($ws['matrice_cliente'] ?? '-')) ?></td>
                                            <td><?= h($ws['profile_type_code'] ?? '-') ?></td>
                                            <td>
                                                <?php if ($isActive): ?>
                                                    <span class="badge-status-active">Attivo</span>
                                                <?php else: ?>
                                                    <span class="badge-status-inactive">Inattivo</span>
                                                <?php endif; ?>
                                            </td>
                                            <td><?= (int)$ws['mixes_count'] ?></td>
                                            <td><?= h($ws['approved_by'] ?? '-') ?></td>
                                            <td><?= h(formatDateTimeIT($ws['created_at'] ?? '')) ?></td>
                                            <td class="text-nowrap">
                                                <?php if ($isActive): ?>
                                                    <button class="btn btn-sm btn-outline-primary"
                                                        onclick="location.href='manage-worksheet.php?id=<?= (int)$ws['id'] ?>'">
                                                        ✏️ Modifica
                                                    </button>
                                                <?php else: ?>
                                                    <button class="btn btn-sm btn-outline-secondary"
                                                        onclick="location.href='manage-worksheet.php?id=<?= (int)$ws['id'] ?>'">
                                                        👁️ Vedi
                                                    </button>
                                                <?php endif; ?>

                                                <button class="btn btn-sm btn-outline-info btn-rev create-revision"
                                                    data-id="<?= (int)$ws['id'] ?>"
                                                    data-name="<?= h(($ws['matrice_nome'] ?? 'Foglio') . ' ' . $worksheetLabel) ?>"
                                                    data-rev="<?= h($revisionLabel) ?>"
                                                    data-fl="<?= h($worksheetLabel) ?>"
                                                    <?= !$isActive ? 'disabled title="Foglio già revisionato/inattivo"' : '' ?>>
                                                    REV
                                                </button>

                                                <button class="btn btn-sm btn-outline-danger delete-ws"
                                                    data-id="<?= (int)$ws['id'] ?>"
                                                    data-name="<?= h(($ws['matrice_nome'] ?? 'Foglio') . ' ' . $worksheetLabel . ' rev. ' . $revisionLabel) ?>">
                                                    🗑️ Elimina
                                                </button>
                                            </td>
                                        </tr>
                                    <?php endforeach; ?>
                                </tbody>
                            </table>
                        </div>

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

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

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

    <script>
        $(document).ready(function() {
            $('#tabellaWorksheets').DataTable({
                pageLength: 50,
                lengthMenu: [10, 25, 50, 100],
                order: [
                    [0, 'desc']
                ],
                language: {
                    url: 'https://cdn.datatables.net/plug-ins/1.13.6/i18n/it-IT.json'
                }
            });

            $(document).on('click', '.delete-ws', function() {
                const id = $(this).data('id');
                const name = $(this).data('name');

                Swal.fire({
                    title: 'Confermi eliminazione?',
                    text: `${name}`,
                    icon: 'warning',
                    showCancelButton: true,
                    confirmButtonColor: '#d33',
                    cancelButtonColor: '#6c757d',
                    confirmButtonText: 'Sì, elimina',
                    cancelButtonText: 'Annulla'
                }).then(result => {
                    if (!result.isConfirmed) return;

                    fetch('', {
                            method: 'POST',
                            headers: {
                                'Content-Type': 'application/x-www-form-urlencoded'
                            },
                            body: `ajax=1&action=delete&id=${id}`
                        })
                        .then(r => r.json())
                        .then(data => {
                            if (data.success) {
                                Swal.fire({
                                    icon: 'success',
                                    title: 'Eliminato!',
                                    timer: 900
                                }).then(() => location.reload());
                            } else {
                                Swal.fire({
                                    icon: 'error',
                                    title: 'Errore',
                                    text: data.message
                                });
                            }
                        });
                });
            });

            $(document).on('click', '.create-revision', function() {
                if ($(this).is(':disabled')) {
                    return;
                }

                const id = $(this).data('id');
                const name = $(this).data('name');
                const rev = $(this).data('rev');
                const fl = $(this).data('fl');

                Swal.fire({
                    title: 'Creare una nuova revisione?',
                    html: `
                        <div class="text-start">
                            <div><strong>Foglio:</strong> ${fl}</div>
                            <div><strong>Profilo:</strong> ${name}</div>
                            <div><strong>Revisione attuale:</strong> ${rev}</div>
                            <hr>
                            <div>Il sistema:</div>
                            <ul style="text-align:left; margin-top:8px;">
                                <li>renderà inattivo il foglio corrente</li>
                                <li>creerà un clone completo</li>
                                <li>duplicherà anche le mescole</li>
                                <li>manterrà lo stesso numero foglio</li>
                                <li>assegnerà la nuova revisione progressiva</li>
                            </ul>
                        </div>
                    `,
                    icon: 'question',
                    showCancelButton: true,
                    confirmButtonColor: '#0dcaf0',
                    cancelButtonColor: '#6c757d',
                    confirmButtonText: 'Sì, crea revisione',
                    cancelButtonText: 'Annulla'
                }).then(result => {
                    if (!result.isConfirmed) return;

                    fetch('', {
                            method: 'POST',
                            headers: {
                                'Content-Type': 'application/x-www-form-urlencoded'
                            },
                            body: `ajax=1&action=create_revision&id=${id}`
                        })
                        .then(r => r.json())
                        .then(data => {
                            if (data.success) {
                                Swal.fire({
                                    icon: 'success',
                                    title: 'Revisione creata',
                                    html: `
                                        <div>Foglio: <strong>${data.worksheet_number_label}</strong></div>
                                        <div class="mt-1">Nuova revisione: <strong>${data.new_revision_code}</strong></div>
                                        <div class="mt-2">Vuoi aprire subito il nuovo foglio?</div>
                                    `,
                                    showCancelButton: true,
                                    confirmButtonText: 'Apri nuovo foglio',
                                    cancelButtonText: 'Resta qui'
                                }).then(res => {
                                    if (res.isConfirmed) {
                                        window.location.href = 'manage-worksheet.php?id=' + data.new_id;
                                    } else {
                                        location.reload();
                                    }
                                });
                            } else {
                                Swal.fire({
                                    icon: 'error',
                                    title: 'Errore',
                                    text: data.message
                                });
                            }
                        })
                        .catch(() => {
                            Swal.fire({
                                icon: 'error',
                                title: 'Errore',
                                text: 'Errore durante la creazione della revisione'
                            });
                        });
                });
            });
        });
    </script>
</body>

</html>