<?php

namespace App\Models;

use App\Casts\VectorCast;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class ArticleChunk extends Model
{
    protected $fillable = [
        'article_id',
        'chunk_index',
        'content',
        'embedding',
        'embedding_provider_instance_id',
        'embedding_model',
        'embedded_at',
    ];

    protected $casts = [
        'embedding' => VectorCast::class,
        'embedded_at' => 'datetime',
    ];

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