<?php
/**
 * 企业产品品类列表接口  GET /api/company/products.php
 * 入参：company_id（必填）/ page / limit
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';

checkPermission('company');

$companyId = (int)($_REQUEST['company_id'] ?? 0);
if ($companyId <= 0) {
    Response::error('参数错误', 400);
}

[$page, $limit] = pageParams(5);

$pdo = DB::getInstance()->getPdo();

$chk = $pdo->prepare("SELECT COUNT(*) FROM companies WHERE id = ?");
$chk->execute([$companyId]);
if ((int)$chk->fetchColumn() === 0) {
    Response::error('企业不存在');
}

$stmt = $pdo->prepare("SELECT COUNT(*) FROM company_products WHERE company_id = ? AND is_active = 1");
$stmt->execute([$companyId]);
$total = (int)$stmt->fetchColumn();

$offset = ($page - 1) * $limit;
$stmt = $pdo->prepare(
    "SELECT id, category_name, category_description, is_core, is_active
     FROM company_products
     WHERE company_id = ? AND is_active = 1
     ORDER BY is_core DESC, id DESC
     LIMIT $limit OFFSET $offset"
);
$stmt->execute([$companyId]);

Response::success(['list' => $stmt->fetchAll(), 'total' => $total, 'page' => $page, 'limit' => $limit]);