<?php

namespace Modules\Accounting\Entities;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasMany;

class AccountingBankLoan extends Model
{
    protected $guarded = ['id'];

    protected $casts = [
        'disbursement_date' => 'date',
        'maturity_date' => 'date',
        'principal_amount' => 'float',
        'interest_rate' => 'float',
        'paid_principal' => 'float',
    ];

    public function payments(): HasMany
    {
        return $this->hasMany(AccountingBankLoanPayment::class, 'bank_loan_id');
    }

    public function remainingPrincipal(): float
    {
        return max(0, (float) $this->principal_amount - (float) $this->paid_principal);
    }
}