<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;

class LiabilityController extends Controller
{
    /**
     * Returns the effective loan base for liability hold calculation.
     * When insurance is added in the loan (insurance_premium_by_merchant = 2),
     * the insurance premium is included in the base amount.
     *
     * @param  float       $approvedAmount
     * @param  object|null $proFormaInvoice
     * @return float
     */
    public static function getLiabilityLoanBase($approvedAmount, $proFormaInvoice)
    {
        $insuranceInLoan = (isset($proFormaInvoice->insurance_premium_applicable) &&
            $proFormaInvoice->insurance_premium_applicable == 1 &&
            isset($proFormaInvoice->insurance_premium_by_merchant) &&
            $proFormaInvoice->insurance_premium_by_merchant == 2)
            ? ($proFormaInvoice->insurance_premium_amount ?? 0) : 0;

        return $approvedAmount + $insuranceInLoan;
    }

    /**
     * Calculates the withheld (liability hold) amount.
     * Base = approved_amount (+ insurance if added in loan) - upfront_from_customer
     *
     * @param  float       $approvedAmount
     * @param  float       $upfrontFromCustomer
     * @param  float       $liabilityPercent
     * @param  object|null $proFormaInvoice
     * @return float
     */
    public static function calculateLiabilityHoldAmount($approvedAmount, $upfrontFromCustomer, $liabilityPercent, $proFormaInvoice)
    {
        $base = self::getLiabilityLoanBase($approvedAmount, $proFormaInvoice) - $upfrontFromCustomer;
        return round($base * $liabilityPercent / 100, 2);
    }
}