<?php
/**
 * PrestaShop 1.7.8.x – Активни продукти репорт (Bootstrap 5 + DataTables)
 * Единичен файл (не модул). Постави го в корена на магазина или подпапка.
 * Съвместим с PHP 7.3.
 * Автор: Код програмиране
 */

// ---------- НАМИРАНЕ НА /config/config.inc.php (без твърди пътища) ----------
function ps_find_config() {
    $dir = __DIR__;
    for ($i = 0; $i < 8; $i++) {
        $candidate = rtrim($dir, '/').'/config/config.inc.php';
        if (is_file($candidate)) return $candidate;
        $parent = dirname($dir);
        if ($parent === $dir) break;
        $dir = $parent;
    }
    return '';
}
$cfg = ps_find_config();
if (!$cfg) { http_response_code(500); echo 'Не намирам /config/config.inc.php.'; exit; }
require_once $cfg;

// Допълнителни include-и (някои инсталации изискват това)
if (defined('_PS_ROOT_DIR_')) {
    $extra = array(
        _PS_ROOT_DIR_.'/config/defines.inc.php',
        _PS_ROOT_DIR_.'/config/autoload.php',
        _PS_ROOT_DIR_.'/config/bootstrap.php',
        _PS_ROOT_DIR_.'/config/alias.php',
        _PS_ROOT_DIR_.'/config/defines_uri.inc.php',
        _PS_ROOT_DIR_.'/config/ini_sets.inc.php',
    );
    foreach ($extra as $ex) { if (is_file($ex)) require_once $ex; }
}

// ---------- ИНИЦИАЛИЗАЦИЯ НА PRESTASHOP ----------
try {
    if (!defined('_PS_VERSION_')) {
        require_once _PS_ROOT_DIR_.'/config/config.inc.php';
    }
    
    // Инициализиране на контекста
    if (class_exists('Context')) {
        $context = Context::getContext();
        if (!$context->controller) {
            $context->controller = new FrontController();
            $context->controller->init();
        }
    }
    
    // Гарантиране на shop контекст
    if (Shop::isFeatureActive()) {
        if (!Shop::getContext()) {
            Shop::setContext(Shop::CONTEXT_SHOP, (int)Configuration::get('PS_SHOP_DEFAULT'));
        }
    }
    
} catch (Exception $e) {
    http_response_code(500);
    header('Content-Type: application/json; charset=utf-8');
    echo json_encode(array('error' => 'PrestaShop initialization failed: ' . $e->getMessage()));
    exit;
}

// ---------- ГАРАНТИРАН КОНТЕКСТ ----------
$context = Context::getContext();

// Shop
if (!$context->shop || !(int)$context->shop->id) {
    $idShop = (int)Configuration::get('PS_SHOP_DEFAULT');
    if ($idShop) {
        $context->shop = new Shop($idShop);
        Shop::setContext(Shop::CONTEXT_SHOP, $idShop);
    }
}
// Language
if (!$context->language || !(int)$context->language->id) {
    $idLang = (int)Configuration::get('PS_LANG_DEFAULT');
    if ($idLang) $context->language = new Language($idLang);
}
// Currency
if (!$context->currency || !(int)$context->currency->id) {
    $idCur = (int)Configuration::get('PS_CURRENCY_DEFAULT');
    if ($idCur) $context->currency = new Currency($idCur);
}
// Country
if (!$context->country || !(int)$context->country->id) {
    $idCountry = (int)Configuration::get('PS_COUNTRY_DEFAULT');
    if ($idCountry) $context->country = new Country($idCountry);
}

$link = $context->link;

// ---------- ПОМОЩНИ ФУНКЦИИ ----------
function ps_get_active_languages() {
    static $langs = null;
    if ($langs === null) {
        $langs = Language::getLanguages(true, Context::getContext()->shop->id);
    }
    return $langs;
}

function ps_currency() {
    static $cur = null;
    if ($cur === null) {
        $defaultId = (int)Configuration::get('PS_CURRENCY_DEFAULT');
        $cur = new Currency($defaultId);
    }
    return $cur;
}

// Активни продукти (ID desc)
function ps_fetch_active_products($offset=0, $limit=100000) {
    $sql = (new DbQuery())
        ->select('p.id_product, p.reference')
        ->from('product', 'p')
        ->innerJoin('product_shop', 'ps', 'p.id_product = ps.id_product AND ps.id_shop = '.(int)Context::getContext()->shop->id)
        ->where('ps.active = 1')
        ->orderBy('p.id_product DESC')
        ->limit((int)$limit, (int)$offset);
    
    $rows = Db::getInstance()->executeS($sql);
    return $rows ? $rows : array();
}

// Имена и link_rewrite за всички активни езици
function ps_fetch_names_for_product($id_product) {
    $langs = ps_get_active_languages();
    $ids = array();
    foreach ($langs as $l) $ids[] = (int)$l['id_lang'];
    if (!$ids) return array();

    $sql = (new DbQuery())
        ->select('pl.id_lang, pl.name, pl.link_rewrite')
        ->from('product_lang', 'pl')
        ->where('pl.id_product='.(int)$id_product)
        ->where('pl.id_shop='.(int)Context::getContext()->shop->id)
        ->where('pl.id_lang IN ('.implode(',', $ids).')');
    
    $rows = Db::getInstance()->executeS($sql);
    $out = array();
    if ($rows) {
        foreach ($rows as $r) {
            $out[(int)$r['id_lang']] = array(
                'name' => $r['name'],
                'link_rewrite' => $r['link_rewrite'],
            );
        }
    }
    return $out;
}

// id на кавър изображението
function ps_cover_image_id($id_product) {
    $cover = Image::getCover($id_product);
    if ($cover && !empty($cover['id_image'])) return (int)$cover['id_image'];
    return null;
}

// URL за миниатюра + URL към продукта
function ps_image_and_product_links($id_product, $namesByLang, $link) {
    $langs = ps_get_active_languages();
    $firstLangId = (int)$langs[0]['id_lang'];
    $linkRewrite = isset($namesByLang[$firstLangId]['link_rewrite']) ? $namesByLang[$firstLangId]['link_rewrite'] : 'product';

    $coverId = ps_cover_image_id($id_product);

    // Определяне на типа изображение
    $thumbType = 'home_default';
    if (class_exists('ImageType')) {
        if (method_exists('ImageType','getFormattedName')) {
            $thumbType = ImageType::getFormattedName('home');
        } elseif (method_exists('ImageType','getFormatedName')) {
            $thumbType = ImageType::getFormatedName('home');
        }
    }

    $imgUrl = $coverId ? $link->getImageLink($linkRewrite, $coverId, $thumbType) : null;
    $productUrl = $link->getProductLink($id_product, $linkRewrite, null, null, $firstLangId);
    
    return array($imgUrl, $productUrl);
}

// Наличности по комбинации
function ps_sizes_and_qty($id_product) {
    $langs = ps_get_active_languages();
    $id_lang = (int)$langs[0]['id_lang'];
    $prod = new Product($id_product, false, $id_lang, Context::getContext()->shop->id);
    $combs = $prod->getAttributeCombinations($id_lang);
    if (!$combs) $combs = array();

    $byAttr = array();
    foreach ($combs as $c) {
        $ipa = (int)$c['id_product_attribute'];
        if (!isset($byAttr[$ipa])) $byAttr[$ipa] = array('attrs'=>array(), 'ipa'=>$ipa);
        $gname = isset($c['group_name']) ? mb_strtolower($c['group_name']) : '';
        $aname = isset($c['attribute_name']) ? $c['attribute_name'] : '';
        $byAttr[$ipa]['attrs'][] = array('group'=>$gname, 'name'=>$aname);
    }

    $preferSize = array();
    foreach ($byAttr as $ipa => $data) {
        foreach ($data['attrs'] as $a) {
            if (preg_match('/(size|размер)/iu', $a['group'])) { $preferSize[$ipa] = true; break; }
        }
    }

    $rows = array();
    foreach ($byAttr as $ipa => $data) {
        $qty = (int)StockAvailable::getQuantityAvailableByProduct($id_product, $ipa, (int)Context::getContext()->shop->id);
        $sizeLabel = null;
        if (!empty($preferSize[$ipa])) {
            foreach ($data['attrs'] as $a) {
                if (preg_match('/(size|размер)/iu', $a['group'])) { $sizeLabel = $a['name']; break; }
            }
        }
        if ($sizeLabel === null) {
            $parts = array(); foreach ($data['attrs'] as $a) { $parts[] = $a['name']; }
            $sizeLabel = implode(' / ', $parts);
        }
        $rows[] = array('label'=>$sizeLabel, 'qty'=>$qty);
    }

    $withStock = array(); foreach ($rows as $r) { if ($r['qty'] > 0) $withStock[] = $r; }
    return $withStock ? $withStock : $rows;
}

// Общо наличност
function ps_total_qty($id_product) {
    return (int)StockAvailable::getQuantityAvailableByProduct($id_product, 0, (int)Context::getContext()->shop->id);
}

// Цени
function ps_prices($id_product) {
    $ctx = Context::getContext();
    $idShop = (int)$ctx->shop->id;
    $idCur  = (int)$ctx->currency->id;

    // Базова цена от product_shop
    $q = new DbQuery();
    $q->select('ps.price')
      ->from('product_shop', 'ps')
      ->where('ps.id_product='.(int)$id_product)
      ->where('ps.id_shop='.(int)$idShop);
    $row = Db::getInstance()->getRow($q);
    $base = $row ? (float)$row['price'] : 0.0;

    // Търсене на специфични цени
    $now = date('Y-m-d H:i:s');
    $spQ = new DbQuery();
    $spQ->select('reduction, reduction_type')
        ->from('specific_price', 'sp')
        ->where('sp.id_product='.(int)$id_product)
        ->where('sp.id_shop IN (0,'.(int)$idShop.')')
        ->where('sp.id_currency IN (0,'.(int)$idCur.')')
        ->where('sp.id_country IN (0,'.(int)$ctx->country->id.')')
        ->where('sp.id_group = 0')
        ->where('sp.id_customer = 0')
        ->where('(sp.from = "0000-00-00 00:00:00" OR sp.from <= "'.$now.'")')
        ->where('(sp.to   = "0000-00-00 00:00:00" OR sp.to   >= "'.$now.'")')
        ->orderBy('sp.id_specific_price DESC');
    $sp = Db::getInstance()->getRow($spQ);

    $current = $base;
    if ($sp && (float)$sp['reduction'] > 0) {
        if ($sp['reduction_type'] === 'percentage') {
            $current = $base * (1.0 - (float)$sp['reduction']);
        } else { // amount
            $current = $base - (float)$sp['reduction'];
        }
        if ($current < 0) $current = 0.0;
    }

    // ДОБАВЕТЕ ТУК УМНОЖЕНИЕТО С 1.2 ЗА ДДС
    $base_with_vat = $base * 1.2;
    $current_with_vat = $current * 1.2;

    return array((float)$base, (float)$current);
}

// Форматиране на цена
function ps_fmt_price($price) {
    // Добавяне на ДДС
    $price_with_vat = $price * 1.2;    
    return Tools::displayPrice($price, ps_currency());
}

// Събиране на данните
function ps_collect_data() {
    $products = ps_fetch_active_products(0, 100000);
    $langs = ps_get_active_languages();
    $out = array();

    foreach ($products as $p) {
        $id  = (int)$p['id_product'];
        $ref = $p['reference'];

        $names = ps_fetch_names_for_product($id);
        list($imgUrl, $pUrl) = ps_image_and_product_links($id, $names, Context::getContext()->link);

        // Имена за всички активни езици
        $nameParts = array();
        foreach ($langs as $l) {
            $id_lang = (int)$l['id_lang'];
            $iso = $l['iso_code'];
            $nm = isset($names[$id_lang]['name']) ? $names[$id_lang]['name'] : '';
            if ($nm !== '') { $nameParts[] = '<p>['.$iso.'] '.$nm.'</p>'; }
        }
        $namesAll = implode("\n", $nameParts);

        // Размери + количества
        $sizes = ps_sizes_and_qty($id);
        $sizeParts = array();
        foreach ($sizes as $s) {
            $label = isset($s['label']) ? $s['label'] : '';
            $qty   = isset($s['qty']) ? (int)$s['qty'] : 0;
            $sizeParts[] = $label . ': ' . $qty;
        }
        $sizesStr = implode("\n", $sizeParts);

        $totalQty = ps_total_qty($id);
        list($base, $curr) = ps_prices($id);

        // ДОБАВЕТЕ ДДС ТУК ДИРЕКТНО
        $base_with_vat = $base * 1.2;
        $curr_with_vat = $curr * 1.2;

        $out[] = array(
            'id'        => $id,
            'reference' => $ref,
            'image'     => $imgUrl,
            'plink'     => $pUrl,
            'names'     => $namesAll,
            'sizes'     => $sizesStr,
            'total'     => $totalQty,
            'base'      => ps_fmt_price($base * 1.2), //Това умножение по 1,2 се прави за да показва цената с ДДС
            'current'   => ps_fmt_price($curr * 1.2), //Това умножение по 1,2 се прави за да показва цената с ДДС
            'has_disc'  => ($curr < $base) ? 1 : 0,
            //'disc_percent' => ($base > 0 && $curr < $base) ? (int)round((($base - $curr) / $base) * 100) : 0,
            'disc_percent' => ($base > 0 && $curr < $base)
        ? (int) round((($base - $curr) / $base) * 100)
        : 0,
        );
    }
    return $out;
}

// ---------- РЕЖИМИ (AJAX/EXPORT/VIEW) ----------
if (isset($_GET['action']) && $_GET['action'] === 'data') {
    header('Content-Type: application/json; charset=utf-8');
    try {
        $data = ps_collect_data();
        echo json_encode(array('data'=>$data), JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
    } catch (Exception $e) {
        echo json_encode(array('error'=>'Грешка при събиране на данни: ' . $e->getMessage()));
    }
    exit;
}

// Експорт към Excel (CSV UTF-8 BOM)
if (isset($_GET['export']) && $_GET['export'] === '1') {
    try {
        $rows = ps_collect_data();
        $filename = 'products_export_' . date('Ymd_His') . '.csv';
        header('Content-Type: text/csv; charset=utf-8');
        header('Content-Disposition: attachment; filename="' . $filename . '"');
        echo "\xEF\xBB\xBF";
        $out = fopen('php://output', 'w');
        fputcsv($out, array(
            'ID','Reference','Product URL','Image URL','Names (all languages)',
            'Sizes (qty)','Total Qty','Base Price','Current Price','Discount %',
        ), ';');
        foreach ($rows as $r) {
            fputcsv($out, array(
                $r['id'],
                $r['reference'],
                $r['plink'],
                $r['image'],
                preg_replace("/\r?\n/", ' | ', $r['names']),
                preg_replace("/\r?\n/", ' | ', $r['sizes']),
                $r['total'],
                $r['base'],
                $r['current'],
                ($r['disc_percent'] > 0 ? ('-' . $r['disc_percent'] . '%') : ''),
            ), ';');
        }
        fclose($out);
    } catch (Exception $e) {
        header('Content-Type: text/plain; charset=utf-8');
        echo 'Грешка при експорт: ' . $e->getMessage();
    }
    exit;
}

?>
<!doctype html>
<html lang="bg">
<head>
  <meta charset="utf-8">
  <title>Активни продукти – репорт</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <!-- Bootstrap 5 -->
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">

  <!-- DataTables (Bootstrap 5 theme) -->
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/datatables.net-bs5@1.13.10/css/dataTables.bootstrap5.min.css">
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/datatables.net-responsive-bs5@2.5.0/css/responsive.bootstrap5.min.css">

  <style>
    body { background:#f8f9fa; padding-top: 20px; }
    .price-current { font-weight: 600; }
    .price-base { text-decoration: line-through; opacity: .7; margin-right:.5rem; }
    td pre { white-space: pre-wrap; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: .85rem; margin: 0; }
    .thumb { width:56px; height:56px; object-fit:cover; border-radius:.5rem; }
    .card { border: none; box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075); }
    .table td { vertical-align: middle; }
  </style>
</head>
<body>
<div class="container-fluid py-4">
  <div class="d-flex align-items-center justify-content-between mb-4">
    <h1 class="h3 mb-0 text-primary">Активни продукти / <a href="/check-products.php" class="btn btn-warning" >Неактивни с наличност за продажба!</a></h1> 
    <div class="d-flex gap-2">
      <a href="?export=1" class="btn btn-success">
        📊 Експорт в Excel (CSV)
      </a>
    </div>
  </div>

  <!-- Лоудър -->
  <div id="loader" class="card shadow-sm mb-4">
    <div class="card-body d-flex align-items-center gap-3 py-4">
      <div class="spinner-border text-primary" role="status" aria-hidden="true"></div>
      <div>
        <div class="fw-semibold">Зареждане на данни…</div>
        <div class="text-muted small">Може да отнеме малко време при много продукти.</div>
      </div>
    </div>
  </div>

  <div class="card shadow-sm">
    <div class="card-body p-0">
      <table id="products" class="table table-striped table-hover align-middle" style="width:100%">
        <thead class="table-light">
        <tr>
          <th width="80">ID</th>
          <th width="100">Ref</th>
          <th width="70">Снимка</th>
          <th>Име (всички езици)</th>
          <th>Размери (наличности)</th>
          <th width="120">Общо наличност</th>
          <th width="150">Цена (с ДДС)</th>
        </tr>
        </thead>
        <tbody></tbody>
      </table>
    </div>
  </div>
</div>

<!-- JS -->
<script src="https://cdn.jsdelivr.net/npm/jquery@3.7.1/dist/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>

<!-- DataTables -->
<script src="https://cdn.jsdelivr.net/npm/datatables.net@1.13.10/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/datatables.net-bs5@1.13.10/js/dataTables.bootstrap5.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/datatables.net-responsive@2.5.0/js/dataTables.responsive.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/datatables.net-responsive-bs5@2.5.0/js/responsive.bootstrap5.min.js"></script>

<script>
(function() {
  const tableEl = $('#products');
  const loaderEl = $('#loader');

  fetch('?action=data')
    .then(r => {
      if (!r.ok) throw new Error('Network error: ' + r.status);
      return r.json();
    })
    .then(json => {
      if (json.error) {
        throw new Error(json.error);
      }
      
      loaderEl.remove();
      const data = json.data || [];
      
      if (data.length === 0) {
        loaderEl.find('.card-body').html(
          '<div class="alert alert-warning mb-0">Няма активни продукти за показване.</div>'
        );
        return;
      }
      
      const table = tableEl.DataTable({
        data: data,
        responsive: true,
        deferRender: true,
        pageLength: 500,
        lengthMenu: [100, 250, 500, 1000],
        order: [[0, 'desc']],
        columns: [
          { 
            data: 'id',
            className: 'fw-bold text-center'
          },
          { 
            data: 'reference', 
            defaultContent: '-',
            className: 'text-center'
          },
          {
            data: null,
            orderable: false,
            searchable: false,
            className: 'text-center',
            render: function(row) {
              if (!row.image) return '<span class="text-muted">Няма</span>';
              const href = row.plink || '#';
              return '<a href="' + href + '" target="_blank" rel="noopener" title="Отвори продукта">' +
                       '<img src="' + row.image + '" class="thumb" alt="thumb" onerror="this.style.display=\'none\'">' +
                     '</a>';
            }
          },
          {
            data: 'names',
            render: function(data) {
              return data ? '<pre>' + data.replace(/\n/g,'\n') + '</pre>' : '<span class="text-muted">Няма име</span>';
            }
          },
          {
            data: 'sizes',
            render: function(data) {
              return data ? '<pre class="text-small">' + data.replace(/\n/g,'\n') + '</pre>' : '<span class="text-muted">Няма варианти</span>';
            }
          },
          { 
            data: 'total',
            className: 'text-center fw-bold',
            render: function(data) {
              const qty = parseInt(data) || 0;
              const cls = qty > 0 ? 'text-success' : 'text-danger';
              return '<span class="' + cls + '">' + qty + '</span>';
            }
          },
          {
            data: null,
            
  className: 'text-end',
  render: function(row) {
    if (row.has_disc && row.base !== row.current) {
      var badge = (typeof row.disc_percent !== 'undefined' && row.disc_percent > 0)
        ? ' <span class="badge bg-success ms-2" style="padding:10px; width:100px; font-size:20pt;">-' + row.disc_percent + '%</span>'
        : '';
      return '<div>' +
        '<span class="price-base text-muted text-decoration-line-through me-2">' + row.base + '</span>' +
        '<span class="price-current text-danger" style="font-size:25pt;font-weight:bold;">' + row.current + '</span>' +
        badge +
      '</div>';
    }
    return '<span class="price-current">' + row.current + '</span>';
  }
}
        ],
        dom: '<"row mb-3"<"col-sm-12 col-md-6"l><"col-sm-12 col-md-6"f>><"row"<"col-sm-12"tr>><"row mt-3"<"col-sm-12 col-md-5"i><"col-sm-12 col-md-7"p>>',
        language: {
          url: 'https://cdn.datatables.net/plug-ins/1.13.10/i18n/bg.json',
          search: "Търсене:",
          lengthMenu: "Покажи _MENU_ записа",
          info: "Показване на _START_ до _END_ от _TOTAL_ записа",
          paginate: {
            first: "Първа",
            last: "Последна", 
            next: "Следваща",
            previous: "Предишна"
          }
        }
      });
    })
    .catch(err => {
      console.error('Error:', err);
      loaderEl.find('.card-body').html(
        '<div class="alert alert-danger mb-0">Грешка при зареждане на данните: ' + err.message + '</div>'
      );
    });
})();
</script>
</body>
</html>