<?php
/**
 * 硬碎片废弃接口  POST /api/fragment/hard_discard.php
 * 入参：id
 * v1.0.50：废弃改为从 preliminary_data 彻底硬删除（不再保留记录）
 */
require_once __DIR__ . '/../common/db.php';
require_once __DIR__ . '/../common/response.php';
require_once __DIR__ . '/../common/auth.php';
require_once __DIR__ . '/../common/logger.php';

checkAjax();
checkPermission('preliminary');

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

$pdo = DB::getInstance()->getPdo();
$stmt = $pdo->prepare("SELECT id, converted_id FROM preliminary_data WHERE id = ? AND is_active = 1");
$stmt->execute([$id]);
$frag = $stmt->fetch();
if (!$frag) {
    Response::error('碎片不存在');
}
if ($frag['converted_id']) {
    Response::error('该碎片已转换，不可废弃');
}

// 彻底硬删除（v1.0.50 起废弃不再保留记录）
$pdo->prepare("DELETE FROM preliminary_data WHERE id = ?")->execute([$id]);

logCurrent('discard', 'fragment', 'preliminary_data', $id, ['action' => 'hard_delete']);
Response::success(null, '已废弃');