<?php

namespace app\api\controller;

use think\Db;

/**
 * 后台管理端 · 信息审核（Module-ADM-AUDIT）
 * 路由：
 *   GET  /api/v1/admin/posts/pending      AP1 待审核信息列表
 *   POST /api/v1/admin/post/:id/audit     AP2 信息审核（通过/驳回）
 *   POST /api/v1/admin/post/:id/offline   AP3 信息下架
 */
class AdminPost extends V1
{
    /** 管理端接口必须校验管理员身份（V1 默认关闭了 URI 权限校验） */
    public function _initialize()
    {
        parent::_initialize();
        $this->adminOnly();
    }

    /**
     * AP1 待审核信息列表
     * GET /api/v1/admin/posts/pending 入参 {page,size}
     * → 分页 {list:[{id,title,categoryId,categoryName,userId,userName,area,price,priceUnit,createdAt,isPaid,content}],page,size,total,hasMore}
     * 条件：audit_status=0 且未删除（deletetime is null），按 createtime 升序
     */
    public function pending()
    {
        // 闭包重建查询：TP5.0 的 count() 会清空 Query::options，不能复用同一对象
        list($rows, $total, $page, $size) = $this->pageQuery(function ($forCount) {
            $q = Db::name('fc_post')->alias('p')
                ->join('fc_category c', 'c.id = p.category_id', 'LEFT')
                ->join('user u', 'u.id = p.user_id', 'LEFT')
                ->where('p.audit_status', 0)
                ->whereNull('p.deletetime');
            if ($forCount) {
                return $q;
            }
            return $q->field('p.*, c.name AS category_name, u.nickname AS user_name')
                ->order('p.createtime asc');
        });

        $list = [];
        foreach ($rows as $row) {
            $list[] = [
                'id'           => (int)$row['id'],
                'title'        => (string)$row['title'],
                'categoryId'   => (int)$row['category_id'],
                'categoryName' => (string)$row['category_name'],
                'userId'       => (int)$row['user_id'],
                'userName'     => (string)$row['user_name'],
                'area'         => (string)$row['area'],
                'price'        => (float)$row['price'],
                'priceUnit'    => (string)$row['price_unit'],
                'createdAt'    => $this->iso($row['createtime']),
                'isPaid'       => (bool)$row['is_paid'],
                'content'      => (string)$row['content'],
            ];
        }

        $this->ok($this->paginate($list, $total, $page, $size));
    }

    /**
     * AP2 信息审核
     * POST /api/v1/admin/post/:id/audit 入参 {auditStatus,reason?} → {id,auditStatus}
     * 规则 BR-11：auditStatus 仅允许 1（通过）/2（驳回）
     */
    public function audit()
    {
        $id = (int)$this->request->param('id', 0);
        $auditStatus = (int)$this->input('auditStatus', 0);
        $reason = trim((string)$this->input('reason', ''));

        if (!in_array($auditStatus, [1, 2], true)) {
            $this->fail('审核状态仅支持通过(1)/驳回(2)');
        }

        $post = Db::name('fc_post')->where('id', $id)->find();
        if (!$post) {
            $this->fail('信息不存在', 404);
        }

        Db::name('fc_post')->where('id', $id)->update([
            'audit_status' => $auditStatus,
            'audit_reason' => $reason,
            'updatetime'   => time(),
        ]);

        if ($auditStatus === 1) {
            Db::name('fc_category')->where('id', $post['category_id'])->setInc('post_count');
            $this->notify($post['user_id'], 'system', '审核通过', '您发布的信息「' . $post['title'] . '」已审核通过。');
        } else {
            $this->notify($post['user_id'], 'system', '审核驳回', '您发布的信息「' . $post['title'] . '」被驳回：' . $reason);
        }

        $this->adminLog('审核信息 #' . $id . ' 结果' . $auditStatus);

        // 订阅消息：审核结果（模板未配置/用户未授权时静默跳过）
        \app\common\library\WxSubscribe::send(
            (int)$post['user_id'],
            'audit',
            [
                'thing1'  => ['value' => mb_substr((string)$post['title'], 0, 20)],
                'phrase2' => ['value' => $auditStatus === 1 ? '审核通过' : '审核未通过'],
                'thing3'  => ['value' => $auditStatus === 1 ? '信息已公开展示' : mb_substr((string)$reason, 0, 20)],
            ],
            'pages/detail/detail?id=' . $id
        );

        $this->ok(['id' => (int)$id, 'auditStatus' => (int)$auditStatus]);
    }

    /**
     * AP3 信息下架
     * POST /api/v1/admin/post/:id/offline → {id,offline}
     */
    public function offline()
    {
        $id = (int)$this->request->param('id', 0);

        $post = Db::name('fc_post')->where('id', $id)->find();
        if (!$post) {
            $this->fail('信息不存在', 404);
        }

        Db::name('fc_post')->where('id', $id)->update([
            'status'     => 0,
            'updatetime' => time(),
        ]);

        $this->notify($post['user_id'], 'system', '信息已下架', '您发布的信息「' . $post['title'] . '」已被下架。');
        $this->adminLog('下架信息 #' . $id);

        $this->ok(['id' => (int)$id, 'offline' => true]);
    }
}