<?php

namespace Modules\IndustrialEngineering\Models;

use Illuminate\Database\Eloquent\Model;

class CompetitiveProductStructure extends Model
{
    protected $table = 'ie_competitive_product_structures';

    protected $guarded = ['id'];

    protected $casts = [
        'quantity' => 'decimal:4',
        'estimated_unit_cost' => 'decimal:4',
    ];

    public function competitiveProduct()
    {
        return $this->belongsTo(CompetitiveProduct::class, 'competitive_product_id');
    }

    public function parentStructure()
    {
        return $this->belongsTo(CompetitiveProductStructure::class, 'parent_structure_id');
    }

    public function children()
    {
        return $this->hasMany(CompetitiveProductStructure::class, 'parent_structure_id');
    }
}