modify_presets.php

<?php
/**
 * oneforall - modify_presets.php
 * Preset Manager — list, load, save, import, export
 * @version 1.2.0  @license GNU GPL  @platform WBCE 1.6.5+
 */

require('../../config.php');
$inc_path = dirname(__FILE__);
require_once($inc_path.'/info.php');
require_once(WB_PATH.'/framework/class.admin.php');
$admin = new admin('Modules', 'module_view', false, false);

if(LANGUAGE_LOADED) {
    require_once($inc_path.'/languages/EN.php');
    if(file_exists($inc_path.'/languages/'.LANGUAGE.'.php')) {
        require_once($inc_path.'/languages/'.LANGUAGE.'.php');
    }
}

$L = $MOD_ONEFORALL[$mod_name];

$page_id    = (int)($_POST['page_id']    ?? $_GET['page_id']    ?? 0);
$section_id = (int)($_POST['section_id'] ?? $_GET['section_id'] ?? 0);

if(!$page_id || !$section_id) {
    $admin->print_header();
    $admin->print_error('Missing page_id or section_id.', ADMIN_URL.'/pages/index.php');
}

if(!$admin->isAdmin()) {
    $admin->print_header();
    $admin->print_error($MESSAGE['PAGES_INSUFFICIENT_PERMISSIONS'],
        ADMIN_URL.'/pages/modify.php?page_id='.$page_id);
}

$presets_dir     = $inc_path.'/presets';
$presets_dir_url = WB_URL.'/modules/'.$mod_name.'/modify_presets.php';
$return_url      = $presets_dir_url.'?page_id='.$page_id.'&section_id='.$section_id;
$action          = $_POST['action'] ?? $_GET['action'] ?? '';

// ── Export preset as JSON — BEFORE print_header() ─────────────────────────
if($action === 'export' && !empty($_POST['preset_file'])) {
    $file = preg_replace('/[^a-zA-Z0-9_\-]/', '', $_POST['preset_file']);
    $path = $presets_dir.'/'.$file.'.json';
    if(!file_exists($path)) { header('Location: '.$return_url.'&msg=not_found'); exit; }
    $data = json_decode(file_get_contents($path), true);
    if(!$data) { header('Location: '.$return_url.'&msg=invalid'); exit; }
    $filename = date('Y-m-d').'_'.$mod_name.'_preset_'.$file;
    while(ob_get_level()) ob_end_clean();
    header('Content-Type: application/json; charset=utf-8');
    header('Content-Disposition: attachment; filename='.$filename.'.json');
    header('Cache-Control: no-cache, no-store, must-revalidate');
    echo json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    exit;
}

// ── Export current config as JSON — BEFORE print_header() ─────────────────
// ── Globaler Export (fields section_id=0 + general_settings) ─────────────
if($action === 'export_global') {
    $fields_global = $database->get_array(
        "SELECT `field_id`,`position`,`type`,`extra`,`name`,`label`,`template`
         FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = 0 ORDER BY `position`"
    );
    $general = $database->get_array(
        "SELECT `name`,`value` FROM `{TP}mod_{$mod_name}_general_settings` ORDER BY `id`"
    );
    $output = [
        'export_module' => [
            'default_mod_name' => 'oneforall',
            'mod_name'         => $mod_name,
            'module_version'   => $module_version,
            'export_type'      => 'global',
            'comment'          => 'Global export: fields (section_id=0) + general_settings',
        ],
        'export_fields'           => ['name' => 'fields',           'data' => $fields_global],
        'export_general_settings' => ['name' => 'general_settings', 'data' => $general],
    ];
    $filename = date('Y-m-d').'_'.$mod_name.'_global_export';
    while(ob_get_level()) ob_end_clean();
    header('Content-Type: application/json; charset=utf-8');
    header('Content-Disposition: attachment; filename='.$filename.'.json');
    header('Cache-Control: no-cache, no-store, must-revalidate');
    echo json_encode($output, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    exit;
}

if($action === 'export_current') {
    $preset_name = trim($_POST['preset_name'] ?? 'My Preset');
    $preset_desc = trim($_POST['preset_description'] ?? '');
    $fields = $database->get_array(
        "SELECT `field_id`,`position`,`type`,`extra`,`name`,`label`,`template`
         FROM `{TP}mod_{$mod_name}_fields`
         WHERE `section_id` = '$section_id' OR `section_id` = 0
         ORDER BY `position`"
    );
    $ps = $database->get_array(
        "SELECT `section_id`,`page_id`,`header`,`item_loop`,`footer`,
                `item_header`,`item_footer`,`items_per_page`,`resize`,
                `lightbox2`,`img_section`
         FROM `{TP}mod_{$mod_name}_page_settings` WHERE `section_id` = '$section_id'"
    );
    $output = [
        'export_module' => [
            'default_mod_name'   => 'oneforall',
            'mod_name'           => $mod_name,
            'module_version'     => $module_version,
            'preset_name'        => $preset_name,
            'preset_description' => $preset_desc,
            'preset_icon'        => 'cog',
            'comment'            => 'Exported from WBCE OFA Preset Manager',
        ],
        'export_fields'        => ['name' => 'fields',        'data' => $fields],
        'export_page_settings' => ['name' => 'page_settings', 'data' => $ps],
    ];
    $filename = date('Y-m-d').'_'.$mod_name.'_preset';
    while(ob_get_level()) ob_end_clean();
    header('Content-Type: application/json; charset=utf-8');
    header('Content-Disposition: attachment; filename='.$filename.'.json');
    header('Cache-Control: no-cache, no-store, must-revalidate');
    echo json_encode($output, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    exit;
}

// ── All other actions need print_header() ─────────────────────────────────
$admin->print_header();

$msg_success = '';
$msg_error   = '';

$url_msg = $_GET['msg'] ?? '';
if($url_msg === 'not_found')    $msg_error   = $L['TXT_PRESET_MSG_NOT_FOUND'];
if($url_msg === 'invalid')      $msg_error   = $L['TXT_PRESET_MSG_INVALID'];
if($url_msg === 'default_set')  $msg_success = $L['TXT_PRESET_MSG_DEFAULT'];

// ── Set default preset ─────────────────────────────────────────────────────
if($action === 'set_default' && !empty($_POST['preset_file'])) {
    $file = preg_replace('/[^a-zA-Z0-9_\-]/', '', $_POST['preset_file']);
    if(file_exists($presets_dir.'/'.$file.'.json')) {
        if(file_put_contents($presets_dir.'/default.txt', $file) !== false) {
            header('Location: '.$return_url.'&msg=default_set&preset='.urlencode($file));
            exit;
        } else {
            $msg_error = 'Could not write default.txt — check file permissions.';
        }
    } else {
        $msg_error = $L['TXT_PRESET_MSG_NOT_FOUND'];
    }
}

// ── Load preset: Step 1 — Diff anzeigen ──────────────────────────────────
if($action === 'load_confirm' && !empty($_POST['preset_file'])) {
    $file   = preg_replace('/[^a-zA-Z0-9_\-]/', '', $_POST['preset_file']);
    $path   = $presets_dir.'/'.$file.'.json';
    $import = file_exists($path) ? json_decode(file_get_contents($path), true) : null;
    if(!$import) {
        $msg_error = $L['TXT_PRESET_MSG_NOT_FOUND'];
    } else {
        $cur_fields = $database->get_array(
            "SELECT * FROM `{TP}mod_{$mod_name}_fields`
             WHERE `section_id` = '$section_id' OR `section_id` = 0 ORDER BY position"
        );
        $cur_by_name = [];
        foreach($cur_fields as $f) $cur_by_name[$f['name']] = $f;
        $preset_fields = $import['export_fields']['data'] ?? [];
        $preset_names  = array_column($preset_fields, 'name');
        $diff_keep = $diff_add = $diff_remove = [];
        foreach($preset_fields as $pf) {
            if(isset($cur_by_name[$pf['name']])) $diff_keep[] = $pf;
            else $diff_add[] = $pf;
        }
        foreach($cur_by_name as $name => $cf) {
            if(!in_array($name, $preset_names)) $diff_remove[] = $cf;
        }
        $_SESSION['ofa_load_confirm'] = [
            'file'   => $file,
            'import' => $import,
        ];
        $show_diff    = true;
        $diff_preset  = $import['export_module']['preset_name'] ?? $file;
        $diff_is_legacy = ($import['export_module']['export_type'] ?? '') === 'legacy'
                       || empty($import['export_module']['export_type']);
    }
}

// ── Load preset: Step 2 — Ausführen nach Bestätigung ─────────────────────
if($action === 'load' && !empty($_POST['preset_file']) && !empty($_SESSION['ofa_load_confirm'])) {
    $confirmed = $_SESSION['ofa_load_confirm'];
    $file      = preg_replace('/[^a-zA-Z0-9_\-]/', '', $_POST['preset_file']);
    if($confirmed['file'] === $file) {
        $import = $confirmed['import'];
        // Alte item_fields dieser Section löschen — field_ids werden durch neue ersetzt
        $database->query(
            "DELETE FROM `{TP}mod_{$mod_name}_item_fields`
             WHERE `item_id` IN (
                 SELECT `item_id` FROM `{TP}mod_{$mod_name}_items` WHERE `section_id` = '$section_id'
             )"
        );
        // Globale Felder (section_id=0) existieren noch → für jede andere Section
        // die noch keine eigenen Felder hat, section-spezifische Kopien anlegen
        $global_count = $database->get_one(
            "SELECT COUNT(*) FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = 0"
        );
        if($global_count) {
            // Alle Sections die dieses Modul nutzen und noch keine eigenen Felder haben
            $other_sections = $database->get_array(
                "SELECT DISTINCT s.section_id FROM `{TP}sections` s
                 WHERE s.module = '$mod_name' AND s.section_id != '$section_id'
                 AND NOT EXISTS (
                     SELECT 1 FROM `{TP}mod_{$mod_name}_fields` f
                     WHERE f.section_id = s.section_id
                 )"
            );
            foreach($other_sections as $os) {
                $database->query(
                    "INSERT INTO `{TP}mod_{$mod_name}_fields`
                     (`section_id`,`position`,`type`,`extra`,`name`,`label`,`template`)
                     SELECT '".$os['section_id']."', `position`,`type`,`extra`,`name`,`label`,`template`
                     FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = 0"
                );
            }
            // Globale Felder jetzt löschen — alle Sections haben eigene Kopien
            $database->query("DELETE FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = 0");
        }
        // Jetzt alle section-spezifischen Felder dieser Section löschen
        $database->query(
            "DELETE FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = '$section_id'"
        );
        foreach($import['export_fields']['data'] ?? [] as $row) {
            $type  = $row['type'] ?? 'text';
            $extra = $row['extra'] ?? '';
            // media-Felder: Standardverzeichnis vorbelegen wenn leer
            if($type === 'media' && empty(trim($extra))) {
                $extra = '/'.$mod_name.'/images/';
            }
            $type     = $database->escapeString($type);
            $extra    = $database->escapeString($extra);
            $name     = $database->escapeString($row['name']     ?? '');
            $label    = $database->escapeString($row['label']    ?? '');
            $template = $database->escapeString($row['template'] ?? '');
            $position = (int)($row['position'] ?? 1);
            $database->query(
                "INSERT INTO `{TP}mod_{$mod_name}_fields`
                 (`section_id`,`position`,`type`,`extra`,`name`,`label`,`template`)
                 VALUES ('$section_id','$position','$type','$extra','$name','$label','$template')"
            );
            $new_field_id = $database->getLastInsertId();
            $database->query(
                "INSERT IGNORE INTO `{TP}mod_{$mod_name}_item_fields` (`item_id`, `field_id`)
                 SELECT `item_id`, '$new_field_id' FROM `{TP}mod_{$mod_name}_items` WHERE `section_id` = '$section_id'"
            );
        }
        if(!empty($import['export_page_settings']['data'])) {
            $database->query(
                "DELETE FROM `{TP}mod_{$mod_name}_page_settings` WHERE `section_id` = '$section_id'"
            );
            // Preset speichert als [{name:X, value:Y}] Array — in Key/Value umwandeln
            $ps_data = $import['export_page_settings']['data'];
            $row = [];
            // Prüfen ob name/value Format oder direktes Format
            if(isset($ps_data[0]['name']) && isset($ps_data[0]['value'])) {
                foreach($ps_data as $ps_item) {
                    $row[$ps_item['name']] = $ps_item['value'];
                }
            } else {
                $row = $ps_data[0] ?? [];
            }
            $header      = $database->escapeString($row['header']     ?? '');
            $item_loop   = $database->escapeString($row['item_loop']  ?? '');
            $footer      = $database->escapeString($row['footer']     ?? '');
            $item_header = $database->escapeString($row['item_header'] ?? '');
            $item_footer = $database->escapeString($row['item_footer'] ?? '');
            $ipp         = (int)($row['items_per_page'] ?? 0);
            $resize      = (int)($row['resize']         ?? 100);
            $lightbox2   = $database->escapeString($row['lightbox2']  ?? 'detail');
            $img_section = $database->escapeString($row['img_section'] ?? '0');
            $database->query(
                "INSERT INTO `{TP}mod_{$mod_name}_page_settings`
                 (`section_id`,`page_id`,`header`,`item_loop`,`footer`,
                  `item_header`,`item_footer`,`items_per_page`,`resize`,
                  `lightbox2`,`img_section`)
                 VALUES ('$section_id','$page_id','$header','$item_loop','$footer',
                         '$item_header','$item_footer','$ipp','$resize',
                         '$lightbox2','$img_section')"
            );
        }
        unset($_SESSION['ofa_load_confirm']);
        // Sync-Checkbox deaktivieren — Preset-Templates sollen nicht überschrieben werden
        $_SESSION[$mod_name]['sync_type_template'] = '';
        $preset_name = htmlspecialchars($import['export_module']['preset_name'] ?? $file);
        $ps_url = WB_URL.'/modules/'.$mod_name.'/modify_page_settings.php'
                .'?page_id='.$page_id.'&section_id='.$section_id
                .'&preset_loaded='.urlencode($preset_name);
        header('Location: '.$ps_url);
        exit;
    }
}

// ── Delete custom preset ───────────────────────────────────────────────────
if($action === 'delete' && !empty($_POST['preset_file'])) {
    $file     = preg_replace('/[^a-zA-Z0-9_\-]/', '', $_POST['preset_file']);
    $starters = ['grid', 'list', 'slider', 'timeline',
                 'team', 'menu', 'events', 'downloads', 'faq', 'jobs',
                 'flipcatalog', 'datatable', 'timetable'];
    if(in_array($file, $starters)) {
        $msg_error = 'Starter presets cannot be deleted.';
    } else {
        $path = $presets_dir.'/'.$file.'.json';
        if(file_exists($path)) { unlink($path); $msg_success = $L['TXT_PRESET_MSG_DELETED']; }
        else { $msg_error = $L['TXT_PRESET_MSG_NOT_FOUND']; }
    }
}

// ── Import Step 1: upload + validate ──────────────────────────────────────
$show_import_form = false;
if($action === 'import_file' && !empty($_FILES['preset_json']['tmp_name'])) {
    $raw    = file_get_contents($_FILES['preset_json']['tmp_name']);
    $import = json_decode($raw, true);

    // Altes Format erkennen: export_module vorhanden aber kein export_type und kein preset_name
    // (Export aus OFA <= 1.1.x hatte export_module mit comment/mod_name aber kein preset_name)
    $is_old_format = !empty($import)
        && !empty($import['export_module'])
        && empty($import['export_module']['export_type'])
        && empty($import['export_module']['preset_name']);

    if(!$import) {
        $msg_error = $L['TXT_PRESET_MSG_INVALID'];
    } elseif(empty($import['export_module']) || $is_old_format) {
        // ── Altes Ex/Import Format erkennen ──────────────────────────────
        if(!empty($import['export_fields']) || !empty($import['export_page_settings'])) {
            $msg_warning = 'Altes Export-Format erkannt (OFA &lt; 1.2.x). Felder und Layout-Einstellungen werden als Preset gespeichert und können dann gezielt auf eine Seite angewendet werden. Andere OFA-Abschnitte werden nicht beeinflusst.';
            // Konvertieren in neues Format
            $import['export_module'] = [
                'default_mod_name'   => 'oneforall',
                'mod_name'           => $mod_name,
                'module_version'     => $module_version ?? '1.x',
                'preset_name'        => 'Importiert (altes Format)',
                'preset_description' => 'Automatisch konvertiert aus altem OFA Ex/Import Format',
                'export_type'        => 'legacy',
                'comment'            => 'Converted from legacy OFA export format',
            ];
            // general_settings direkt importieren wenn vorhanden
            if(!empty($import['export_general_settings']['data'])) {
                foreach($import['export_general_settings']['data'] as $setting) {
                    $name  = $database->escapeString($setting['name']);
                    $value = $database->escapeString($setting['value']);
                    $database->query(
                        "UPDATE `{TP}mod_{$mod_name}_general_settings` SET `value` = '$value' WHERE `name` = '$name'"
                    );
                }
                $msg_warning .= ' Allgemeine Einstellungen wurden übernommen.';
                unset($import['export_general_settings']);
            }
            $_SESSION['ofa_preset_import'] = [
                'export_module'        => $import['export_module'],
                'export_fields'        => $import['export_fields'] ?? [],
                'export_page_settings' => $import['export_page_settings'] ?? [],
                'is_legacy'            => true,
            ];
            $_SESSION['ofa_preset_import_name'] = 'Importiert (altes Format)';
            $_SESSION['ofa_preset_import_desc'] = 'Konvertiert aus altem OFA Ex/Import Format';
            $show_import_form = true;
        } else {
            $msg_error = $L['TXT_PRESET_MSG_INVALID'];
        }
    } elseif(!empty($import['export_module']['export_type']) && $import['export_module']['export_type'] === 'global') {
        // ── Globaler Import (fields section_id=0 + general_settings) ─────
        $msg_info = '';
        // Fields global importieren
        if(!empty($import['export_fields']['data'])) {
            $database->query("DELETE FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = 0");
            foreach($import['export_fields']['data'] as $row) {
                $database->query(
                    "INSERT INTO `{TP}mod_{$mod_name}_fields`
                     (`section_id`,`position`,`type`,`extra`,`name`,`label`,`template`)
                     VALUES (0,?,?,?,?,?,?)",
                    [
                        (int)($row['position'] ?? 1),
                        $row['type']     ?? 'text',
                        $row['extra']    ?? '',
                        $row['name']     ?? '',
                        $row['label']    ?? '',
                        $row['template'] ?? '',
                    ]
                );
            }
            $msg_info .= count($import['export_fields']['data']).' Felder global importiert. ';
        }
        // General settings importieren
        if(!empty($import['export_general_settings']['data'])) {
            foreach($import['export_general_settings']['data'] as $setting) {
                $database->query(
                    "UPDATE `{TP}mod_{$mod_name}_general_settings` SET `value` = ? WHERE `name` = ?",
                    [$setting['value'], $setting['name']]
                );
            }
            $msg_info .= 'Allgemeine Einstellungen übernommen.';
        }
        $msg_success = $msg_info ?: $L['TXT_PRESET_MSG_IMPORTED'];
    } else {
        // ── Normales Preset-Format ────────────────────────────────────────
        $_SESSION['ofa_preset_import'] = [
            'export_module'        => $import['export_module'],
            'export_fields'        => $import['export_fields'] ?? [],
            'export_page_settings' => $import['export_page_settings'] ?? [],
        ];
        $_SESSION['ofa_preset_import_name'] = $import['export_module']['preset_name'] ?? 'My Preset';
        $_SESSION['ofa_preset_import_desc'] = $import['export_module']['preset_description'] ?? '';
        $show_import_form = true;
    }
}

// ── Import Step 2: save with name + description ────────────────────────────
if($action === 'import_save' && !empty($_SESSION['ofa_preset_import'])) {
    $import     = $_SESSION['ofa_preset_import'];
    $pname_raw  = trim($_POST['import_name'] ?? 'custom');
    $pdesc      = trim($_POST['import_desc'] ?? '');
    $pname_file = preg_replace('/[^a-zA-Z0-9_\-]/', '_', $pname_raw);
    $import['export_module']['preset_name']        = $pname_raw;
    $import['export_module']['preset_description'] = $pdesc;
    file_put_contents(
        $presets_dir.'/'.$pname_file.'.json',
        json_encode($import, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)
    );
    unset($_SESSION['ofa_preset_import'], $_SESSION['ofa_preset_import_name'], $_SESSION['ofa_preset_import_desc']);
    $msg_success = $L['TXT_PRESET_MSG_IMPORTED'];
}

// ── Restore default ────────────────────────────────────────────────────────
if($action === 'restore_default') {
    $display_name = $_SESSION['DISPLAY_NAME'] ?? 'Administrator';
    $_header =
'<h1>Hello '.$display_name.'</h1>
<p>This is your module '.$mod_name.' speaking:</p>
<p>Before taking off there have to been made some modifications.</p>
<h2>Adding custom fields</h2>
<ol>
	<li>Login to your WBCE installation.</li>
	<li>Add a new page with page type &quot;'.$mod_name.'&quot;.</li>
	<li>Go to the &quot;Fields Settings&quot; and add the customized fields you intend to collect the data.</li>
	<li>Select the field type and modify the field templates to fit your needs.</li>
	<li>Note that every field must have a unique field name. Allowed characters are a-z, A-Z, 0-9, . (dot), _ (underscore) and - (hyphen).</li>
	<li>Consider the displayed placeholders. You will need them later when adding the item templates.</li>
</ol>
<h2>Adding item templates</h2>
<p>Create your own item templates using the generated and general placeholders:</p>
<ol>
	<li>Go to the &quot;Page Settings&quot; and use the mentioned placeholders in your templates to view the items just the way you want.</li>
	<li>Replace this text by them HTML code of your template.</li>
	<li>[PLACEHOLDERS] are uppercase and enclosed by square brackets.</li>
	<li>For a list of more general placeholders to accomplish your template click the &quot;Help&quot;-button on top of the &quot;Page Settings&quot; page.</li>
	<li>Add an item or two, enter some data and have fun!</li>
</ol>';
    $_item_loop =
'<div class="mod_'.$mod_name.'_item_loop_f">
[THUMB]
<h3 class="mod_'.$mod_name.'_main_title_f"><a href="[LINK]">[TITLE]</a></h3>
<!-- ADD YOUR PLACEHOLDERS LIKE THIS: -->
[FIELD_1]
[FIELD_2]
</div>';
    $_footer =
'<table class="mod_'.$mod_name.'_pagination_f" style="display: [DISPLAY_PREVIOUS_NEXT_LINKS]">
<tr>
<td width="35%" align="left">[PREVIOUS_PAGE_LINK]</td>
<td width="30%" align="center">[TXT_ITEM] [OF] </td>
<td width="35%" align="right">[NEXT_PAGE_LINK]</td>
</tr>
</table>';
    $_item_footer =
'<div class="mod_'.$mod_name.'_item_f">
[THUMBS]
<h2 class="mod_'.$mod_name.'_item_title_f">[TITLE]</h2>
<!-- ADD YOUR PLACEHOLDERS LIKE THIS: -->
[FIELD_1]
[FIELD_2]
</div>
<div class="mod_'.$mod_name.'_prev_next_links_f">
[PREVIOUS] | <a href="[BACK]">[TXT_BACK]</a> | [NEXT]
</div>';
    // Section-spezifische Felder löschen (section_id=0 = global, bleibt)
    $database->query(
        "DELETE FROM `{TP}mod_{$mod_name}_fields` WHERE `section_id` = ?",
        [$section_id]
    );
    $database->query(
        "DELETE FROM `{TP}mod_{$mod_name}_page_settings` WHERE `section_id` = ?",
        [$section_id]
    );
    $database->query(
        "INSERT INTO `{TP}mod_{$mod_name}_page_settings`
         (`section_id`,`page_id`,`header`,`item_loop`,`footer`,
          `item_header`,`item_footer`,`items_per_page`,`resize`,`lightbox2`,`img_section`)
         VALUES (?,?,?,?,?,?,?,?,?,?,?)",
        [$section_id,$page_id,$_header,$_item_loop,$_footer,$_header,$_item_footer,0,100,'detail','0']
    );
    $msg_success = $L['TXT_PRESET_MSG_RESTORED'];
}

// ── Load all presets ───────────────────────────────────────────────────────
$starters = ['grid', 'list', 'slider', 'timeline',
             'team', 'menu', 'events', 'downloads', 'faq', 'jobs',
             'flipcatalog', 'datatable', 'timetable'];
$default_preset = '';
$default_file   = $presets_dir.'/default.txt';
if(file_exists($default_file)) { $default_preset = trim(file_get_contents($default_file)); }

$presets_starter = [];
$presets_custom  = [];

foreach(glob($presets_dir.'/*.json') as $file) {
    $key  = basename($file, '.json');
    $data = json_decode(file_get_contents($file), true);
    if(!$data) continue;
    $preset = [
        'file'       => $key,
        'name'       => $data['export_module']['preset_name'] ?? $key,
        'description'=> $data['export_module']['preset_description'] ?? '',
        'icon'       => $data['export_module']['preset_icon'] ?? 'cog',
        'is_default' => ($key === $default_preset),
        'fields'     => count($data['export_fields']['data'] ?? []),
    ];
    if(in_array($key, $starters)) {
        $presets_starter[$key] = $preset;
    } else {
        $presets_custom[$key] = $preset;
    }
}

$icon_map = [
    'th-large'=>'th-large','list'=>'list','film'=>'film','clock-o'=>'clock-o',
    'cog'=>'cog','users'=>'users','cutlery'=>'cutlery','calendar'=>'calendar',
    'download'=>'download','question-circle'=>'question-circle','briefcase'=>'briefcase',
    'book'=>'book','table'=>'table',
];

// ── HTML Output ────────────────────────────────────────────────────────────
?>
<!-- CSS in backend.css -->

<div class="ofa-pm">
<h2><i class="fa fa-sliders"></i> <?php echo $L['TXT_PRESET_MANAGER']; ?>
    <a href="#" onclick="window.open('<?php echo WB_URL; ?>/modules/<?php echo $mod_name; ?>/presets_help.php?page_id=<?php echo $page_id; ?>&section_id=<?php echo $section_id; ?>','ofa_presets_help','width=860,height=700,scrollbars=yes,resizable=yes'); return false;"
       style="margin-left:auto;background:#fff;color:#1a6ca8;padding:.25em .75em;border-radius:3px;font-size:.75em;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;gap:.35em;">
        <i class="fa fa-question-circle"></i> Hilfe
    </a>
</h2>

<?php if($msg_success): ?>
<div class="ofa-pm-msg ofa-pm-msg-ok"><i class="fa fa-check-circle"></i> <?php echo $msg_success; ?></div>
<?php endif; ?>
<?php if(!empty($msg_warning)): ?>
<div class="ofa-pm-msg ofa-pm-msg-warn" style="background:#fff8e1;border-color:#f0c040;color:#7a6000;"><i class="fa fa-exclamation-triangle"></i> <?php echo $msg_warning; ?></div>
<?php endif; ?>
<?php if($msg_error): ?>
<div class="ofa-pm-msg ofa-pm-msg-err"><i class="fa fa-exclamation-triangle"></i> <?php echo $msg_error; ?></div>
<?php endif; ?>

<!-- Import Step 2 Form -->
<?php if(!empty($show_import_form) && !empty($_SESSION['ofa_preset_import'])): ?>
<div class="ofa-pm-import-form">
  <h3><i class="fa fa-upload"></i> <?php echo $L['TXT_PRESET_IMPORT_NAME']; ?></h3>
  <form method="post">
    <input type="hidden" name="section_id" value="<?php echo $section_id; ?>">
    <input type="hidden" name="page_id"    value="<?php echo $page_id; ?>">
    <input type="hidden" name="action"     value="import_save">
    <div class="ofa-pm-import-grid">
      <label><?php echo $L['TXT_PRESET_NAME']; ?>:</label>
      <input type="text" name="import_name"
        value="<?php echo htmlspecialchars($_SESSION['ofa_preset_import_name'] ?? ''); ?>" required>
      <label><?php echo $L['TXT_PRESET_DESC']; ?>:</label>
      <input type="text" name="import_desc"
        value="<?php echo htmlspecialchars($_SESSION['ofa_preset_import_desc'] ?? ''); ?>">
      <span></span>
      <div style="display:flex;gap:.5em;margin-top:.4em">
        <button type="submit" class="ofa-pm-btn ofa-pm-btn-load">
          <i class="fa fa-save"></i> <?php echo $TEXT['SAVE']; ?>
        </button>
        <a href="<?php echo $return_url; ?>" class="ofa-pm-btn ofa-pm-btn-json">
          <?php echo $TEXT['CANCEL']; ?>
        </a>
      </div>
    </div>
  </form>
</div>
<?php endif; ?>

<!-- Top Action Panels: Save + Global Export + Import -->
<div class="ofa-pm-panels">

  <!-- Save current as preset -->
  <div class="ofa-pm-panel">
    <h3><i class="fa fa-download"></i> <?php echo $L['TXT_PRESET_SAVE_CURRENT']; ?></h3>
    <form method="post">
      <input type="hidden" name="section_id" value="<?php echo $section_id; ?>">
      <input type="hidden" name="page_id"    value="<?php echo $page_id; ?>">
      <input type="hidden" name="action"     value="export_current">
      <div class="ofa-pm-form-row">
        <label><?php echo $L['TXT_PRESET_NAME']; ?>:</label>
        <input type="text" name="preset_name" value="My Preset" required>
      </div>
      <div class="ofa-pm-form-row">
        <label><?php echo $L['TXT_PRESET_DESC']; ?>:</label>
        <input type="text" name="preset_description" value="">
      </div>
      <button type="submit" class="ofa-pm-btn ofa-pm-btn-load" style="margin-top:.35em">
        <i class="fa fa-download"></i> Download JSON
      </button>
      <div class="ofa-pm-hint"><?php echo $L['TXT_PRESET_FIELDS_ONLY']; ?></div>
    </form>
  </div>

  <!-- Globaler Export -->
  <div class="ofa-pm-panel">
    <h3><i class="fa fa-globe"></i> Globaler Export</h3>
    <form method="post">
      <input type="hidden" name="section_id" value="<?php echo $section_id; ?>">
      <input type="hidden" name="page_id"    value="<?php echo $page_id; ?>">
      <input type="hidden" name="action"     value="export_global">
      <p style="font-size:.85em;color:#555;margin:.25em 0 .75em;">
        Exportiert globale Felder (section_id=0) und allgemeine Einstellungen.<br>
        Geeignet als Website-Backup oder für die Migration auf eine andere Installation.
      </p>
      <button type="submit" class="ofa-pm-btn ofa-pm-btn-json">
        <i class="fa fa-download"></i> Global Export JSON
      </button>
    </form>
  </div>

  <!-- Import preset -->
  <div class="ofa-pm-panel">
    <h3><i class="fa fa-upload"></i> <?php echo $L['TXT_PRESET_IMPORT']; ?></h3>
    <form method="post" enctype="multipart/form-data">
      <input type="hidden" name="section_id" value="<?php echo $section_id; ?>">
      <input type="hidden" name="page_id"    value="<?php echo $page_id; ?>">
      <input type="hidden" name="action"     value="import_file">
      <div class="ofa-pm-form-row">
        <input type="file" name="preset_json" accept=".json" style="flex:1">
      </div>
      <button type="submit" class="ofa-pm-btn ofa-pm-btn-load" style="margin-top:.35em">
        <i class="fa fa-upload"></i> <?php echo $L['TXT_PRESET_IMPORT']; ?>
      </button>
      <div class="ofa-pm-hint"><?php echo $L['TXT_PRESET_IMPORT_HINT']; ?></div>
    </form>
  </div>
</div>

<?php if(!empty($show_diff) && isset($diff_keep, $diff_add, $diff_remove)): ?>
<div style="background:#fff8e1;border:1px solid #f0c040;border-radius:6px;padding:1em 1.25em;margin-bottom:1.25rem;">
  <h3 style="margin:0 0 .75em;color:#c7a800;font-size:1em;">
    <i class="fa fa-exchange"></i>
    Preset &quot;<?php echo htmlspecialchars($diff_preset); ?>&quot; — Feldvergleich
  </h3>

  <?php if(!empty($diff_is_legacy)): ?>
  <div style="background:#fff3cd;border:1px solid #f0ad4e;border-radius:4px;padding:.75em 1em;margin-bottom:1em;font-size:.88em;">
    <p style="margin:0 0 .5em;font-weight:700;color:#856404;">
      <i class="fa fa-info-circle"></i> Hinweis: Altes Export-Format (OFA &lt; 1.2.x)
    </p>
    <p style="margin:0 0 .4em;color:#5a4000;">
      Dieses Preset wurde mit einer älteren OFA-Version exportiert. Die Felder werden mit
      <strong>neuen IDs</strong> angelegt — die Platzhalter in den Layout-Templates
      (z.&nbsp;B. <code>[FELD_1]</code>, <code>[FIELD_1]</code>) stimmen danach
      <strong>nicht mehr</strong> mit den neuen IDs überein.
    </p>
    <p style="margin:0;color:#5a4000;">
      <i class="fa fa-wrench"></i> <strong>Nach dem Import bitte prüfen:</strong>
      Seiteneinstellungen → Layout → Platzhalter der Felder anpassen
      (neue Platzhalter werden in den Feldeinstellungen angezeigt).
    </p>
  </div>
  <?php endif; ?>
  <table style="width:100%;border-collapse:collapse;font-size:.88em;margin-bottom:.75em;">
    <thead>
      <tr style="border-bottom:2px solid #e0c060;">
        <th style="text-align:left;padding:.3em .5em;">Feld</th>
        <th style="text-align:left;padding:.3em .5em;">Typ</th>
        <th style="text-align:left;padding:.3em .5em;">Aktion</th>
      </tr>
    </thead>
    <tbody>
    <?php foreach($diff_keep as $f): ?>
      <tr style="background:#f0fff4;">
        <td style="padding:.3em .5em;font-weight:600;"><?php echo htmlspecialchars($f['name']); ?></td>
        <td style="padding:.3em .5em;color:#666;"><?php echo htmlspecialchars($f['type']); ?></td>
        <td style="padding:.3em .5em;color:#1a7a42;"><i class="fa fa-check"></i> bleibt / wird aktualisiert</td>
      </tr>
    <?php endforeach; ?>
    <?php foreach($diff_add as $f): ?>
      <tr style="background:#e8f4fd;">
        <td style="padding:.3em .5em;font-weight:600;"><?php echo htmlspecialchars($f['name']); ?></td>
        <td style="padding:.3em .5em;color:#666;"><?php echo htmlspecialchars($f['type']); ?></td>
        <td style="padding:.3em .5em;color:#1a5a9a;"><i class="fa fa-plus"></i> wird hinzugefügt</td>
      </tr>
    <?php endforeach; ?>
    <?php foreach($diff_remove as $f): ?>
      <tr style="background:#fdf0ee;">
        <td style="padding:.3em .5em;font-weight:600;"><?php echo htmlspecialchars($f['name']); ?></td>
        <td style="padding:.3em .5em;color:#666;"><?php echo htmlspecialchars($f['type']); ?></td>
        <td style="padding:.3em .5em;color:#c0392b;"><i class="fa fa-trash"></i> wird gelöscht (inkl. Daten)</td>
      </tr>
    <?php endforeach; ?>
    </tbody>
  </table>
  <?php if(!empty($diff_remove)): ?>
  <p style="color:#c0392b;font-size:.85em;margin:.25em 0 .75em;">
    <i class="fa fa-exclamation-triangle"></i>
    <strong>Achtung:</strong> Die rot markierten Felder und alle darin gespeicherten Daten werden unwiderruflich gelöscht.
  </p>
  <?php endif; ?>
  <div style="display:flex;gap:.5em;align-items:center;">
    <form method="post">
      <input type="hidden" name="section_id"   value="<?php echo $section_id; ?>">
      <input type="hidden" name="page_id"       value="<?php echo $page_id; ?>">
      <input type="hidden" name="action"        value="load">
      <input type="hidden" name="preset_file"   value="<?php echo htmlspecialchars($_SESSION['ofa_load_confirm']['file'] ?? ''); ?>">
      <button type="submit" class="ofa-pm-btn ofa-pm-btn-load">
        <i class="fa fa-check"></i> Preset übernehmen
      </button>
    </form>
    <a href="<?php echo $return_url; ?>" class="ofa-pm-btn ofa-pm-btn-json">
      <i class="fa fa-times"></i> Abbrechen
    </a>
  </div>
</div>
<?php endif; ?>

<?php
function renderPresetRow($p, $section_id, $page_id, $icon_map, $L, $is_starter) {
    $icon = htmlspecialchars($icon_map[$p['icon']] ?? 'cog');
    $badge = $is_starter
        ? '<span class="ofa-pm-badge ofa-pm-badge-starter">'.$L['TXT_PRESET_STARTER'].'</span>'
        : '<span class="ofa-pm-badge ofa-pm-badge-custom">'.$L['TXT_PRESET_CUSTOM'].'</span>';
    if($p['is_default']) {
        $badge .= ' <span class="ofa-pm-badge ofa-pm-badge-default">★ '.$L['TXT_PRESET_DEFAULT'].'</span>';
    }
    echo '<tr>';
    echo '<td class="ofa-pm-icon"><i class="fa fa-'.$icon.'"></i></td>';
    echo '<td class="ofa-pm-info">';
    echo '<div class="ofa-pm-preset-name">'.htmlspecialchars($p['name']).'</div>';
    if($p['description']) echo '<div class="ofa-pm-preset-desc">'.htmlspecialchars($p['description']).'</div>';
    echo '<div class="ofa-pm-meta">';
    echo '<span class="ofa-pm-fields-count">'.$p['fields'].' Felder</span> ';
    echo $badge;
    echo '</div>';
    echo '<div class="ofa-pm-actions">';
    // Laden
    echo '<form method="post">';
    echo '<input type="hidden" name="section_id" value="'.$section_id.'">';
    echo '<input type="hidden" name="page_id"    value="'.$page_id.'">';
    echo '<input type="hidden" name="action"     value="load_confirm">';
    echo '<input type="hidden" name="preset_file" value="'.htmlspecialchars($p['file']).'">';
    echo '<button type="submit" class="ofa-pm-btn ofa-pm-btn-load"><i class="fa fa-download"></i> '.$L['TXT_PRESET_LOAD'].'</button>';
    echo '</form>';
    // JSON Export
    echo '<form method="post">';
    echo '<input type="hidden" name="section_id"  value="'.$section_id.'">';
    echo '<input type="hidden" name="page_id"     value="'.$page_id.'">';
    echo '<input type="hidden" name="action"      value="export">';
    echo '<input type="hidden" name="preset_file" value="'.htmlspecialchars($p['file']).'">';
    echo '<button type="submit" class="ofa-pm-btn ofa-pm-btn-json"><i class="fa fa-file-code-o"></i> '.$L['TXT_PRESET_JSON'].'</button>';
    echo '</form>';
    // Set Default
    if(!$p['is_default']) {
        echo '<form method="post">';
        echo '<input type="hidden" name="section_id"  value="'.$section_id.'">';
        echo '<input type="hidden" name="page_id"     value="'.$page_id.'">';
        echo '<input type="hidden" name="action"      value="set_default">';
        echo '<input type="hidden" name="preset_file" value="'.htmlspecialchars($p['file']).'">';
        echo '<button type="submit" class="ofa-pm-btn ofa-pm-btn-star" title="'.htmlspecialchars($L['TXT_PRESET_SET_DEFAULT']).'">★</button>';
        echo '</form>';
    }
    // Delete (only custom)
    if(!$is_starter) {
        echo '<form method="post" onsubmit="return confirm(\''.addslashes($L['TXT_PRESET_CONFIRM_DELETE']).'\')">';
        echo '<input type="hidden" name="section_id"  value="'.$section_id.'">';
        echo '<input type="hidden" name="page_id"     value="'.$page_id.'">';
        echo '<input type="hidden" name="action"      value="delete">';
        echo '<input type="hidden" name="preset_file" value="'.htmlspecialchars($p['file']).'">';
        echo '<button type="submit" class="ofa-pm-btn ofa-pm-btn-del">✕</button>';
        echo '</form>';
    }
    echo '</div>';
    echo '</td>';
    echo '</tr>';
}
?>

<!-- Starter Presets -->
<?php if(!empty($presets_starter)): ?>
<div class="ofa-pm-section">
  <div class="ofa-pm-section-header">
    <i class="fa fa-star-o"></i>
    <?php echo $L['TXT_PRESET_SECTION_STARTER']; ?>
    <span class="ofa-pm-section-count"><?php echo count($presets_starter); ?></span>
  </div>
  <table class="ofa-pm-table">
    <colgroup>
      <col class="col-icon">
      <col class="col-name">
    </colgroup>
    <thead>
      <tr>
        
        <th><?php echo $L["TXT_PRESET_NAME"]; ?></th><th></th>
      </tr>
    </thead>
    <tbody>
    <?php foreach($presets_starter as $p): renderPresetRow($p, $section_id, $page_id, $icon_map, $L, true); endforeach; ?>
    </tbody>
  </table>
</div>
<?php endif; ?>

<!-- Custom Presets -->
<?php if(!empty($presets_custom)): ?>
<div class="ofa-pm-section">
  <div class="ofa-pm-section-header custom">
    <i class="fa fa-folder-o"></i>
    <?php echo $L['TXT_PRESET_SECTION_CUSTOM']; ?>
    <span class="ofa-pm-section-count"><?php echo count($presets_custom); ?></span>
  </div>
  <table class="ofa-pm-table">
    <colgroup>
      <col class="col-icon">
      <col class="col-name">
    </colgroup>
    <thead>
      <tr>
        
        <th><?php echo $L["TXT_PRESET_NAME"]; ?></th><th></th>
      </tr>
    </thead>
    <tbody>
    <?php foreach($presets_custom as $p): renderPresetRow($p, $section_id, $page_id, $icon_map, $L, false); endforeach; ?>
    </tbody>
  </table>
</div>
<?php endif; ?>

<?php if(empty($presets_starter) && empty($presets_custom)): ?>
<p style="color:#999;padding:1em 0"><?php echo $L['TXT_PRESET_NONE']; ?></p>
<?php endif; ?>

<!-- Bottom Bar -->
<div class="ofa-pm-bottombar">
  <form method="post" onsubmit="return confirm('<?php echo addslashes($L['TXT_PRESET_CONFIRM_RESTORE']); ?>')">
    <input type="hidden" name="section_id" value="<?php echo $section_id; ?>">
    <input type="hidden" name="page_id"    value="<?php echo $page_id; ?>">
    <input type="hidden" name="action"     value="restore_default">
    <button type="submit" class="ofa-pm-btn ofa-pm-btn-restore">
      <i class="fa fa-refresh"></i> <?php echo $L['TXT_PRESET_RESTORE']; ?>
    </button>
  </form>
  <button onclick="window.location='<?php echo ADMIN_URL; ?>/pages/modify.php?page_id=<?php echo $page_id; ?>'"
    class="ofa-pm-btn ofa-pm-btn-back">
    <i class="fa fa-arrow-left"></i> <?php echo $L['TXT_PRESET_BACK']; ?>
  </button>
</div>

</div><!-- .ofa-pm -->

<?php $admin->print_footer(); ?>