KT-MyPage/app/Email/Members/EntryMessageBuilder.php

<?php

namespace App\Email\Members;

use App\Kintone\Models\PaymentPlan;
use App\Kintone\Models\SeasonTicketContractEntry;
use App\Kintone\Models\SeasonTicketContractPlan;

abstract class EntryMessageBuilder
{
    public static function getPaymentExplainStr(PaymentPlan $firstMonth, ?PaymentPlan $partitial, ?PaymentPlan $deposit): string
    {

        $hiwariStr = !!$partitial ? sprintf(
            "%d月分日割分%s円と",
            $partitial->targetMonth,
            number_format($partitial->paymentPlanAmount)
        ) : "";

        $totalAmount = $firstMonth->paymentPlanAmount;
        if ($partitial) {
            $totalAmount += $partitial->paymentPlanAmount;
        }

        return sprintf(
            "※料金は利用日までの前払いのため、%s%d月分%s円 （合計%s円）を%sまでにお振込下さい。（手数料は振込者負担でお願い致します。）",
            $hiwariStr,
            $firstMonth->targetMonth,
            number_format($firstMonth->paymentPlanAmount),
            number_format($totalAmount),
            $firstMonth->paymentPlanDate->format("Y年m月d日")
        );
    }

    public static function getTaxExplain(SeasonTicketContractPlan $plan): string
    {
        return sprintf(
            "（消費税等含む，適用税率%d%% 　消費税額 %s円）",
            $plan->taxRate ?? 0,
            number_format($plan->taxAmount ?? 0),
        );
    }

    public static function getDepositExplain(?PaymentPlan $deposit): string
    {
        if (!$deposit) return "";

        $lines = collect();

        foreach ($deposit->depositList as $row) {
            $lines->push(sprintf("%s:%s円", $row->name, number_format($row->amount)));
        }


        if ($lines->isNotEmpty()) {
            $lines->prepend("---保証金------");
            $lines->push(sprintf("保証金合計:%s円", number_format($deposit->paymentPlanAmount)));
            $lines->push("---------------");
        }

        return $lines->join("\n");
    }
}