<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;

class Bookmark extends Model
{
    use HasFactory;

    protected $table = 'bookmarks';

    protected $with = ['tags'];

    public function syncTagsFromString(string $tags_string): array
    {
        $tags_input = trim($tags_string);
        $tags_input = preg_split('/\s+/', $tags_input);

        $tags = [];
        foreach ($tags_input as $tag_input) {
            $tag = Tag::firstOrCreate(['name' => $tag_input]);
            $tags[$tag->id] = true;
        }

        return $this->tags()->sync(array_keys($tags));
    }

    public function tags(): BelongsToMany
    {
        return $this->belongsToMany(Tag::class);
    }

    public function user(): BelongsTo
    {
        return $this->belongsTo(User::class);
    }
}