<?php

namespace App\Modules\Taxonomy\Domain;

use Illuminate\Database\Eloquent\Concerns\HasUlids;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

class TaxonomyRelationship extends Model
{
    use HasUlids;

    protected $fillable = [
        'organization_id', 'source_node_id', 'target_node_id', 'relationship_type', 'weight', 'metadata',
    ];

    protected function casts(): array
    {
        return ['weight' => 'decimal:4', 'metadata' => 'array'];
    }

    public function source(): BelongsTo
    {
        return $this->belongsTo(TaxonomyNode::class, 'source_node_id');
    }

    public function target(): BelongsTo
    {
        return $this->belongsTo(TaxonomyNode::class, 'target_node_id');
    }
}