<?php

/**
 * fix_why_band_position.php (2026-11-04)
 *
 * Verschiebt das "Why VITEC?"-Band (introparagraph + folgende icon_card-
 * Elemente aus vitec:build-why-vitec-bands) auf den 7 Produkt-Uebersichts-
 * seiten VOR das "Product range"-Intro. Der Band-Lauf hatte es dahinter
 * einsortiert und damit die Ueberschrift von ihren Produktkarten getrennt
 * (Arne, 0042-FE Abschnitt 3).
 *
 * Soll: Hero -> Why-VITEC-Band -> "Product range" -> Produktkarten.
 *
 *   php migrations/fix_why_band_position.php           # INSPECT (default)
 *   php migrations/fix_why_band_position.php --apply   # schreibt
 */

declare(strict_types=1);

$apply = in_array('--apply', $argv, true);

$settings = require __DIR__ . '/../config/system/settings.php';
$db = $settings['DB']['Connections']['Default'];
$pdo = new PDO(
    sprintf('mysql:host=%s;dbname=%s;charset=utf8mb4', $db['host'], $db['dbname']),
    $db['user'],
    $db['password'],
    [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
);

echo $apply ? "APPLY\n\n" : "INSPECT - nichts wird geschrieben (--apply zum Schreiben)\n\n";

$slugs = [
    '/products/activesqx',
    '/products/aetria',
    '/products/aligo',
    '/products/avedia-modular-system',
    '/products/image-graphics-cards',
    '/products/operator-workstations',
    '/products/prism-transcoder',
];

$moved = 0;
foreach ($slugs as $slug) {
    $page = $pdo->prepare('SELECT uid, title FROM pages WHERE deleted = 0 AND slug = ?');
    $page->execute([$slug]);
    $page = $page->fetch(PDO::FETCH_ASSOC);
    if ($page === false) {
        echo "$slug: Seite NICHT gefunden - uebersprungen\n\n";
        continue;
    }
    $pid = (int)$page['uid'];

    $stmt = $pdo->prepare(
        'SELECT uid, CType, header, sorting, hidden FROM tt_content
         WHERE pid = ? AND deleted = 0 AND colPos = 0
           AND (tx_container_parent IS NULL OR tx_container_parent = 0)
         ORDER BY sorting, uid'
    );
    $stmt->execute([$pid]);
    $elements = $stmt->fetchAll(PDO::FETCH_ASSOC);

    // Band finden: "Why VITEC?"-Intro + direkt folgende vitec_card-Elemente
    $bandStart = null;
    foreach ($elements as $i => $el) {
        if ($el['CType'] === 'vitec_introparagraph' && trim((string)$el['header']) === 'Why VITEC?') {
            $bandStart = $i;
            break;
        }
    }
    if ($bandStart === null) {
        echo "$slug (pid $pid): kein 'Why VITEC?'-Intro - uebersprungen\n\n";
        continue;
    }
    $bandEnd = $bandStart;
    while (isset($elements[$bandEnd + 1]) && $elements[$bandEnd + 1]['CType'] === 'vitec_card') {
        $bandEnd++;
    }

    // Ziel: das erste andere Intro ("Product range")
    $target = null;
    foreach ($elements as $i => $el) {
        if ($i >= $bandStart && $i <= $bandEnd) {
            continue;
        }
        if ($el['CType'] === 'vitec_introparagraph') {
            $target = $i;
            break;
        }
    }
    if ($target === null) {
        echo "$slug (pid $pid): kein zweites Intro gefunden - uebersprungen\n\n";
        continue;
    }

    echo "$slug (pid $pid) - Band: Elemente " . ($bandEnd - $bandStart + 1)
        . " (#" . $elements[$bandStart]['uid'] . "..#" . $elements[$bandEnd]['uid'] . ")"
        . ", Ziel-Intro: #" . $elements[$target]['uid'] . " \"" . $elements[$target]['header'] . "\"\n";

    if ($target > $bandEnd) {
        echo "  Band steht bereits VOR dem Ziel-Intro - nichts zu tun\n\n";
        continue;
    }

    // neue Reihenfolge: Band raus, vor das Ziel-Intro wieder rein
    $band = array_slice($elements, $bandStart, $bandEnd - $bandStart + 1);
    $rest = array_merge(array_slice($elements, 0, $bandStart), array_slice($elements, $bandEnd + 1));
    $newOrder = [];
    foreach ($rest as $el) {
        if ((int)$el['uid'] === (int)$elements[$target]['uid']) {
            foreach ($band as $b) {
                $newOrder[] = $b;
            }
        }
        $newOrder[] = $el;
    }

    echo "  Neue Reihenfolge:\n";
    $sorting = 0;
    foreach ($newOrder as $el) {
        $sorting += 256;
        printf("    %5d  #%-6d %-24s %s\n", $sorting, $el['uid'], $el['CType'], (string)$el['header']);
        if ($apply) {
            $pdo->prepare('UPDATE tt_content SET sorting = ? WHERE uid = ?')->execute([$sorting, (int)$el['uid']]);
        }
    }
    $moved++;
    echo "\n";
}

echo ($apply ? "FERTIG" : "WUERDE") . ": $moved Seite(n) umsortiert.\n";
if ($apply && $moved > 0) {
    echo "Danach: vendor/bin/typo3 cache:flush\n";
}