<?php
/**
 * 企业导出接口（CSV） GET/POST /api/company/export.php
 * 入参：ids（必填，勾选的企业ID，逗号分隔）——只导出勾选的企业
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';
require_once __DIR__ . '/../common/logger.php';

checkPermission('company');

// 仅导出勾选的企业
$idsRaw = trim($_REQUEST['ids'] ?? '');
$idList = [];
if ($idsRaw !== '') {
    foreach (explode(',', $idsRaw) as $v) {
        $v = (int)trim($v);
        if ($v > 0) {
            $idList[] = $v;
        }
    }
}
$idList = array_unique($idList);
if (!$idList) {
    Response::error('请先选择需要导出的企业数据', 1);
}

$pdo = DB::getInstance()->getPdo();
$in  = implode(',', array_fill(0, count($idList), '?'));
$stmt = $pdo->prepare(
    "SELECT id, name_zh, name_en, business_role, country, registration_number,
            address, legal_representative, industry, industry_subdivision, website,
            registered_capital, established_date, latest_employee_count, latest_annual_revenue,
            is_listed, stock_code, source_channel, source_detail, created_at
     FROM companies WHERE id IN ($in) AND is_active = 1 ORDER BY id DESC"
);
$stmt->execute($idList);
$list = $stmt->fetchAll();

logCurrent('export', 'company', 'companies', null, ['count' => count($list), 'ids' => $idList]);

header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename="companies_' . date('Ymd_His') . '.csv"');
echo "\xEF\xBB\xBF"; // UTF-8 BOM，便于 Excel 直接打开
$out = fopen('php://output', 'w');
fputcsv($out, ['ID', '公司名称', '英文名称', '业务角色', '国家/地区', '注册号', '地址', '法人', '行业', '行业细分', '官网', '注册资本', '成立日期', '员工数', '年营收', '是否上市', '股票代码', '来源渠道', '来源详情', '创建时间']);
foreach ($list as $r) {
    fputcsv($out, [
        $r['id'], $r['name_zh'], $r['name_en'], $r['business_role'],
        $r['country'], $r['registration_number'], $r['address'], $r['legal_representative'],
        $r['industry'], $r['industry_subdivision'], $r['website'], $r['registered_capital'],
        $r['established_date'], $r['latest_employee_count'], $r['latest_annual_revenue'],
        $r['is_listed'], $r['stock_code'], $r['source_channel'], $r['source_detail'], date('Y-m-d', strtotime($r['created_at'])),
    ]);
}
fclose($out);
exit;