<?php
/**
 * 碎片处理中心 - 顶部指标卡接口  GET /api/fragment/stats_overview.php
 * 返回：{ hard_total 硬碎片总数, soft_total 软碎片总数, month_new 本月新增,
 *        month_processed 本月处理, pending 待处理碎片 }
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';

checkPermission('preliminary');

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

// 硬碎片：preliminary_data 中未终结（未转换/未废弃）的记录
$hardTotal = (int)$pdo->query(
    "SELECT COUNT(*) FROM preliminary_data WHERE is_active = 1 AND status NOT IN ('已转换','已废弃')"
)->fetchColumn();

// 软碎片：四张主表 is_incomplete=1 之和
$softTotal = 0;
foreach (['companies', 'persons', 'social_accounts', 'media_commercial_attributes'] as $t) {
    $softTotal += (int)$pdo->query("SELECT COUNT(*) FROM `$t` WHERE is_incomplete = 1")->fetchColumn();
}

// 本月新增（硬碎片按 created_at）
$monthNew = (int)$pdo->query(
    "SELECT COUNT(*) FROM preliminary_data WHERE is_active = 1 AND created_at >= DATE_FORMAT(CURDATE(), '%Y-%m-01')"
)->fetchColumn();

// 本月处理（已转换/已废弃且 processed_at 在本月）
$monthProcessed = (int)$pdo->query(
    "SELECT COUNT(*) FROM preliminary_data
     WHERE is_active = 1 AND status IN ('已转换','已废弃')
       AND processed_at >= DATE_FORMAT(CURDATE(), '%Y-%m-01')"
)->fetchColumn();

// 待处理碎片
$pending = (int)$pdo->query(
    "SELECT COUNT(*) FROM preliminary_data WHERE is_active = 1 AND status = '待处理'"
)->fetchColumn();

Response::success([
    'hard_total'      => $hardTotal,
    'soft_total'      => $softTotal,
    'month_new'       => $monthNew,
    'month_processed' => $monthProcessed,
    'pending'         => $pending,
]);