<?php

/**
 * @name 管理员-用户注销审核控制器
 * @desc 管理员审核用户注销申请，通过秒注销，拒绝则保留账号
 * @Time 2026-04-27
 * @LastUpdate v9.0.0 修复index查询(buildparams where兼容问题)，新增user_device清理
 */

namespace app\admin\controller;

use app\common\controller\Backend;
use think\Db;
use think\Request;

class Userdeletion extends Backend
{
    protected $model = null;
    protected $noNeedLogin = [];
    protected $noNeedRight = ['*'];

    public function _initialize()
    {
        parent::_initialize();
    }

    public function index()
    {
        if ($this->request->isAjax()) {
            $sort = $this->request->get('sort', 'createtime');
            $order = $this->request->get('order', 'desc');
            $offset = $this->request->get('offset', 0, 'intval');
            $limit = $this->request->get('limit', 10, 'intval');
            $filterJson = $this->request->get('filter', '{}');

            $query = Db::name('user_deletion');
            $listQuery = Db::name('user_deletion');

            try {
                $filter = json_decode($filterJson, true);
                if (is_array($filter)) {
                    foreach ($filter as $key => $val) {
                        if ($val !== '' && $val !== null) {
                            $query->where($key, '=', $val);
                            $listQuery->where($key, '=', $val);
                        }
                    }
                }
            } catch (\Exception $e) {}

            $total = $query->count();
            $list = $listQuery
                ->order($sort ?: 'createtime', $order ?: 'desc')
                ->limit($offset, $limit)
                ->select();

            foreach ($list as &$item) {
                $statusMap = [0 => '待审核', 1 => '已通过', 2 => '已拒绝', 3 => '已自动注销'];
                $item['status_text'] = $statusMap[$item['status']] ?? '未知';
                $item['createtime_text'] = date('Y-m-d H:i:s', $item['createtime']);
                $item['auto_delete_time_text'] = date('Y-m-d H:i:s', $item['auto_delete_time']);
                if (isset($item['deletetime']) && $item['deletetime']) {
                    $item['deletetime_text'] = date('Y-m-d H:i:s', $item['deletetime']);
                } else {
                    $item['deletetime_text'] = '-';
                }

                $remain = $item['auto_delete_time'] - time();
                if ($item['status'] == 0 && $remain > 0) {
                    $days = floor($remain / 86400);
                    $hours = floor(($remain % 86400) / 3600);
                    $item['countdown'] = "{$days}天{$hours}小时后自动注销";
                } elseif ($item['status'] == 0) {
                    $item['countdown'] = '已超时，待自动注销';
                } else {
                    $item['countdown'] = '-';
                }
            }
            unset($item);

            $result = ['total' => $total, 'rows' => $list];
            return json($result);
        }

        $pendingCount = Db::name('user_deletion')->where('status', 0)->count();
        $this->view->assign('pendingCount', $pendingCount);
        $this->view->assign('title', '用户注销审核');
        return $this->view->fetch();
    }

    public function approve()
    {
        if (!$this->request->isPost()) {
            $this->error('请求方式错误');
        }

        $id = $this->request->post('id', 0, 'intval');
        $remark = $this->request->post('remark', '', 'trim');

        if (!$id) {
            $this->error('参数错误');
        }

        $record = Db::name('user_deletion')->where('id', $id)->find();
        if (!$record) {
            $this->error('记录不存在');
        }
        if ($record['status'] != 0) {
            $this->error('该申请已处理');
        }

        $this->_deleteUser($record, 1, $remark, $this->auth->id);
        $this->success('已通过注销申请，用户数据已删除');
    }

    public function reject()
    {
        if (!$this->request->isPost()) {
            $this->error('请求方式错误');
        }

        $id = $this->request->post('id', 0, 'intval');
        $remark = $this->request->post('remark', '管理员拒绝', 'trim');

        if (!$id) {
            $this->error('参数错误');
        }

        $record = Db::name('user_deletion')->where('id', $id)->find();
        if (!$record) {
            $this->error('记录不存在');
        }
        if ($record['status'] != 0) {
            $this->error('该申请已处理');
        }

        Db::name('user_deletion')->where('id', $id)->update([
            'status'       => 2,
            'admin_id'     => $this->auth->id,
            'admin_remark' => $remark,
            'updatetime'   => time(),
        ]);

        $this->success('已拒绝注销申请');
    }

    public function process_auto()
    {
        $now = time();
        $list = Db::name('user_deletion')
            ->where('status', 0)
            ->where('auto_delete_time', '<=', $now)
            ->select();

        $count = 0;
        foreach ($list as $record) {
            $this->_deleteUser($record, 3, '3天未审核，自动注销', 0);
            $count++;
        }

        $this->success("已处理 {$count} 条自动注销");
    }

    private function _deleteUser($record, $status, $remark, $adminId)
    {
        $userId = $record['user_id'];

        Db::startTrans();
        try {
            $relatedTables = [
                'user_token',
                'user_device',
                'user_signin',
                'user_favorite',
                'user_note',
                'user_score_log',
                'user_money_log',
                'user_title_log',
                'coin_log',
                'article_like',
                'article_rating',
                'feed_interaction',
                'user_exp_log',
                'user_badge',
                'user_task',
            ];

            foreach ($relatedTables as $table) {
                try {
                    Db::name($table)->where('user_id', $userId)->delete();
                } catch (\Exception $e) {}
            }

            try {
                Db::name('article')->where('user_id', $userId)->update([
                    'deletetime' => time(),
                    'status' => 'rejected',
                ]);
            } catch (\Exception $e) {}

            try { Db::name('user_deletion')->where('user_id', $userId)->where('id', '<>', $record['id'])->delete(); } catch (\Exception $e) {}

            Db::name('user')->where('id', $userId)->delete();

            // 注销完成后，对username做SHA256哈希(PIPL最小化保留原则)
            // 保留6个月后由cleanupOldDeletionRecords接口自动清理
            $hashedUsername = hash('sha256', $record['username'] ?? '');

            Db::name('user_deletion')->where('id', $record['id'])->update([
                'status'       => $status,
                'admin_id'     => $adminId,
                'admin_remark' => $remark,
                'updatetime'   => time(),
                'deletetime'   => time(),
                'username'     => $hashedUsername,
            ]);

            Db::commit();
        } catch (\Exception $e) {
            Db::rollback();
            throw $e;
        }
    }
}