<?php
/**
 * 碎片处理统计接口  GET /api/preliminary/stats.php
 * 返回：总数 / 今日新增 / 各状态数量
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';

checkPermission('preliminary');

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

$total = (int)$pdo->query("SELECT COUNT(*) FROM preliminary_data WHERE is_active = 1")->fetchColumn();
$today = (int)$pdo->query("SELECT COUNT(*) FROM preliminary_data WHERE is_active = 1 AND DATE(created_at) = CURDATE()")->fetchColumn();

$statusRows = $pdo->query(
    "SELECT status, COUNT(*) AS cnt FROM preliminary_data WHERE is_active = 1 GROUP BY status"
)->fetchAll();
$statusMap = [];
foreach ($statusRows as $r) {
    $statusMap[$r['status']] = (int)$r['cnt'];
}

Response::success([
    'total'    => $total,
    'today'    => $today,
    'status'   => $statusMap,
    'statuses' => ['待处理', '待分配', '处理中', '已转换', '已废弃', '已拒收'],
]);