<?php
/**
 * 人员 CSV 导入接口  POST /api/person/import.php  (multipart/form-data, 字段名 file)
 * CSV 表头：union_id,full_name,gender,nationality,id_type,id_number,education,
 *           graduated_from,hometown,work_location,phone,email,source_channel,source_detail
 * 仅 full_name 必填；union_id 留空自动生成；phone/email 写入 social_accounts（默认常用）。
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';
require_once __DIR__ . '/../common/logger.php';
require_once __DIR__ . '/../common/completeness.php';

checkAjax();
checkPermission('person');

if (empty($_FILES['file']) || $_FILES['file']['error'] !== UPLOAD_ERR_OK) {
    Response::error('请选择要上传的CSV文件', 400);
}

$handle = fopen($_FILES['file']['tmp_name'], 'r');
if (!$handle) {
    Response::error('无法读取文件', 400);
}
$first  = preg_replace('/^\xEF\xBB\xBF/', '', fgets($handle));
$header = str_getcsv(trim($first));

$pdo = DB::getInstance()->getPdo();
$insPerson = $pdo->prepare(
    "INSERT INTO persons (union_id, full_name, gender, nationality, id_type, id_number, education, graduated_from, hometown, work_location, source_channel, source_detail)
     VALUES (?,?,?,?,?,?,?,?,?,?,?,?)"
);
$insAccount = $pdo->prepare(
    "INSERT INTO social_accounts (owner_type, owner_id, platform, account_id, is_defult)
     VALUES ('person', ?, ?, ?, 1)"
);

$inserted = 0;
$failed = 0;

while (($row = fgetcsv($handle)) !== false) {
    $row = array_map('trim', $row);
    $rec = [];
    foreach ($header as $idx => $col) {
        $col = trim($col);
        if (isset($row[$idx])) {
            $rec[$col] = $row[$idx];
        }
    }
    if (empty($rec['full_name'])) {
        $failed++;
        continue;
    }
    try {
        $unionId = !empty($rec['union_id']) ? $rec['union_id'] : ('P' . date('YmdHis') . substr(uniqid(), -6));
        // 跳过重复 union_id
        $chk = $pdo->prepare("SELECT COUNT(*) FROM persons WHERE union_id = ?");
        $chk->execute([$unionId]);
        if ((int)$chk->fetchColumn() > 0) {
            $failed++;
            continue;
        }
        $insPerson->execute([
            $unionId, $rec['full_name'], $rec['gender'] ?? '未知', $rec['nationality'] ?? null,
            $rec['id_type'] ?? null, $rec['id_number'] ?? null, $rec['education'] ?? null,
            $rec['graduated_from'] ?? null, $rec['hometown'] ?? null, $rec['work_location'] ?? null,
            $rec['source_channel'] ?? null, $rec['source_detail'] ?? null,
        ]);
        $newId = (int)$pdo->lastInsertId();
        if (!empty($rec['phone'])) {
            $insAccount->execute([$newId, 'phone', $rec['phone']]);
        }
        if (!empty($rec['email'])) {
            $insAccount->execute([$newId, 'email', $rec['email']]);
        }
        // 完整度检查（导入每行入库后）
        updateIncomplete($pdo, 'persons', $newId);
        updateAccountsIncomplete($pdo, 'person', $newId);
        $inserted++;
    } catch (Exception $e) {
        $failed++;
    }
}
fclose($handle);

logCurrent('import', 'person', 'persons', null, ['inserted' => $inserted, 'failed' => $failed]);
Response::success(['inserted' => $inserted, 'failed' => $failed], "导入完成：成功 $inserted 条，失败 $failed 条");