<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\blog\model;

use think\facade\Db;
use ywxapp\model\BaseModel;
use ywxapp\model\MemberUser;


class BlogComment extends BaseModel
{
    // 设置数据表名
    protected $name = 'blog_comment';

    // 设置主键
    protected $pk = 'id';

    // 自动写入时间戳（int 型 Unix 时间戳，匹配 create_at/update_at int 列）
    protected $autoWriteTimestamp = 'int';
    protected $createTime         = 'create_at';
    protected $updateTime         = 'update_at';

    // 定义允许写入的字段
    protected $allowField = [
        'content', 'uid', 'aid', 'pid',
        'status', 'like_count', 'ip', 'user_agent',
    ];

    // 设置字段类型
    protected $type = [
        'id'          => 'int',
        'uid'         => 'int',
        'aid'         => 'int',
        'pid'         => 'int',
        'status'      => 'int',
        'like_count'  => 'int',
        'create_at' => 'int',
        'update_at' => 'int',
    ];

    // 内容修改器（过滤敏感词）
    
    public function setContentAttr($value)
    {
        $sensitiveWords = ['垃圾', '广告', '违法', '政治'];
        return str_replace($sensitiveWords, '***', $value);
    }

    // 定义关联 - 用户（博客用户即主系统会员，统一使用 wxapp_user 表，主键 uid）
    
    public function user()
    {
        return $this->belongsTo(MemberUser::class, 'uid', 'uid');
    }

    // 定义关联 - 文章
    
    public function article()
    {
        return $this->belongsTo(BlogArticle::class, 'aid');
    }

    // 定义关联 - 子评论
    
    public function children()
    {
        return $this->hasMany(BlogComment::class, 'pid');
    }

    // 定义关联 - 父评论
    
    public function parent()
    {
        return $this->belongsTo(BlogComment::class, 'pid');
    }

    // 检查评论是否通过审核
    
    public function isApproved()
    {
        return $this->status === 1;
    }

    // 格式化创建时间（兼容 int / 数字字符串 / 日期字符串 / DateTime）
    
    public function getCreateTextAttr($value, $data)
    {
        $t = $data['create_at'] ?? $value;
        if ($t instanceof \DateTime) {
            return $t->format('Y-m-d H:i');
        }
        if (is_numeric($t)) {
            return date('Y-m-d H:i', (int) $t);
        }
        $ts = strtotime((string) $t);
        return $ts !== false ? date('Y-m-d H:i', $ts) : (string) $t;
    }

    // 获取评论树
    
    public static function getCommentTree($articleId, $parentId = 0, $depth = 0)
    {
        $comments = self::with('member')
            ->where('aid', $articleId)
            ->where('pid', $parentId)
            ->where('status', 1)
            ->order('create_at', 'asc')
            ->select();

        $tree = [];
        foreach ($comments as $comment) {
            $comment->depth    = $depth;
            $comment->children = self::getCommentTree($articleId, $comment->id, $depth + 1);
            $tree[]            = $comment;
        }

        return $tree;
    }

    // 删除评论及其子评论
    
    public function deleteWithChildren()
    {
        // 删除子评论
        $children = $this->children()->select();
        foreach ($children as $child) {
            $child->deleteWithChildren();
        }

        // 删除当前评论
        $this->delete();

        // 更新文章评论数
        Db::name('blog_article')
            ->where('id', $this->aid)
            ->dec('comment_count')
            ->update();
    }
}