<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | 文章模型
// +----------------------------------------------------------------------
declare (strict_types = 1);

namespace addon\articles\model;

use think\model\concern\SoftDelete;
use ywxapp\model\BaseModel;

class Article extends BaseModel
{
    use SoftDelete;

    protected $name = 'articles_article';
    protected $deleteTime = 'delete_at';
    protected $defaultSoftDelete = 0;

    // 时间字段为 int 时间戳（与 install.sql 一致），开启自动维护
    protected $autoWriteTimestamp = true;
    protected $createTime = 'create_at';
    protected $updateTime = 'update_at';

    protected $type = [
        'status'       => 'integer',
        'is_top'       => 'integer',
        'is_recommend' => 'integer',
        'view_count'   => 'integer',
        'comment_count'=> 'integer',
        'like_count'   => 'integer',
    ];

    // 发布中（未删除、已发布）
    public function scopeNormal($query)
    {
        $query->where('delete_at', 0)->where('status', 1);
    }

    public function category()
    {
        return $this->belongsTo(ArticleCategory::class, 'cid', 'id')
            ->bind(['category_name' => 'name', 'category_alias' => 'alias']);
    }

    public function author()
    {
        return $this->belongsTo(\ywxapp\model\MemberUser::class, 'uid', 'uid')
            ->bind(['author_name' => 'nickname']);
    }

    public function tags()
    {
        return $this->belongsToMany(ArticleTag::class, ArticleArticleTag::class, 'tid', 'aid');
    }

    /**
     * 列表查询（支持分类/标签/关键词）
     */
    public static function listArticles(array $where = [], int $page = 1, int $size = 10, string $order = 'is_top desc, create_at desc')
    {
        $query = self::with(['category'])->scope('normal');

        if (!empty($where['cid'])) {
            $query->where('cid', $where['cid']);
        }
        if (!empty($where['tid'])) {
            $ids = ArticleArticleTag::where('tid', $where['tid'])->column('aid');
            $query->whereIn('id', $ids ?: [0]);
        }
        if (!empty($where['keyword'])) {
            $kw = $where['keyword'];
            $query->where(function ($q) use ($kw) {
                $q->whereLike('title', "%{$kw}%")->whereOr('summary', 'like', "%{$kw}%");
            });
        }
        if (!empty($where['is_recommend'])) {
            $query->where('is_recommend', 1);
        }

        return $query->orderRaw($order)->paginate([
            'list_rows' => $size,
            'page'      => $page,
        ]);
    }

    public static function getDetail(int $id)
    {
        return self::with(['category', 'tags', 'author'])
            ->scope('normal')
            ->find($id);
    }

    public static function prev(int $id, int $cid = 0)
    {
        $query = self::scope('normal')->where('id', '<', $id);
        if ($cid) {
            $query->where('cid', $cid);
        }
        return $query->order('id', 'desc')->field('id,title')->find();
    }

    public static function next(int $id, int $cid = 0)
    {
        $query = self::scope('normal')->where('id', '>', $id);
        if ($cid) {
            $query->where('cid', $cid);
        }
        return $query->order('id', 'asc')->field('id,title')->find();
    }

    public static function hot(int $limit = 10)
    {
        return self::scope('normal')
            ->order('view_count', 'desc')
            ->limit($limit)
            ->field('id,title,cid,view_count')
            ->select();
    }

    public static function related(int $id, int $cid = 0, int $limit = 5)
    {
        $query = self::scope('normal')->where('id', '<>', $id);
        if ($cid) {
            $query->where('cid', $cid);
        }
        return $query->order('create_at', 'desc')
            ->limit($limit)
            ->field('id,title,cid')
            ->select();
    }

    public static function ensureSchema(): void
    {
        $prefix = self::currentPrefix();
        self::ensureTableFromInstall($prefix, 'articles_article');
        self::ensureTableFromInstall($prefix, 'articles_article_tag');
    }
}