<?php

namespace App\Services\Admin;

use App\Models\{ArticleCategory, Article};
use Illuminate\Http\Request;
use App\Filters\ArticleCategoryFilter;

/**
 * @method ArticleCategory getModel()
 * @method ArticleCategory|\Illuminate\Database\Query\Builder query()
 */
class ArticleCategoryService extends BaseService
{
    protected string $modelName = ArticleCategory::class;
    protected string $modelFilterName = ArticleCategoryFilter::class;

    public function getTree()
    {
        $list = $this->query()->filter(request()->all(), $this->modelFilterName)->sort()->get()->toArray();
        return array2tree($list, request('parent_path', 0));
    }

    public function list()
    {
        return ['items' => $this->getTree()];
    }

    public function store($data): bool
    {
        $pid = data_get($data, 'parent_id');
        if ($pid && $parent = ArticleCategory::find($pid)) {
            $data['level'] = $parent->level + 1;
            $data['path'] = $parent->path . $parent->id . '-';
        } else {
            $data['level'] = 1;
            $data['path'] = '-';
        }
        return parent::store($data);
    }

    public function update($primaryKey, $data): bool
    {
        $pid = data_get($data, 'parent_id', 0);
        if ($pid && $parent = ArticleCategory::find($pid)) {
            $data['level'] = $parent->level + 1;
            $data['path'] = $parent->path . $parent->id . '-';
        } else {
            $data['level'] = 1;
            $data['path'] = '-';
        }
        return parent::update($primaryKey, $data);
    }

    public function delete(string $ids): mixed
    {
        $id = collect(explode(',', $ids));
        // 所有下级ID
        foreach ($id as $value) {
            $item_ids = ArticleCategory::where('path', 'like', '%-'.$value.'-%')->pluck('id');
            $id = $id->merge($item_ids);
        }
        $id = $id->unique();
        if (Article::whereIn('category_id', $id)->exists()) {
            return $this->setError('请先删除分类下的文章');
        }
        return $this->query()->whereIn($this->primaryKey(), $id)->delete();
    }
}