Wrong tax rate stored in line item

[morhi]

Description

Line items might store a wrong tax rate, if the tax rate contains decimal places. This is due to a conversion in TaxCalculation:

    public function toArray(): array
    {
        return [
            'amount' => (int) $this->amount,
            'rate' => (int) $this->rate,
            'price_includes_tax' => $this->priceIncludesTax,
        ];
    }

The tax itself is calculated correctly though.

Is it possible to change the cast to a float? I think for amount it is fine to use int, because the amount represents the amount of cents, which should not contain decimals.

Steps to reproduce

1. Create a tax rate with decimals (like 8.1% for Switzerland)
2. Add a product with this tax rate to a cart
3. The order entry contains the wrong tax rate at items.*.tax.rate

Environment

Environment Laravel Version: 11.22.0 PHP Version: 8.2.20 Composer Version: 2.7.7 Environment: local Debug Mode: ENABLED Maintenance Mode: OFF Timezone: UTC Locale: de

Cache Config: NOT CACHED Events: NOT CACHED Routes: NOT CACHED Views: CACHED

Drivers Broadcasting: log Cache: file Database: mysql Logs: stack / single Mail: smtp Queue: sync Session: file

Simple Commerce Currencies: CHF, CHF Gateways: TWINT, Kreditkarte, Rechnung Repository: Customer: DuncanMcClean\SimpleCommerce\Customers\EntryCustomerRepository Repository: Order: DuncanMcClean\SimpleCommerce\Orders\EntryOrderRepository Repository: Product: DuncanMcClean\SimpleCommerce\Products\EntryProductRepository Shipping Methods: Default shipping method Tax Engine: DuncanMcClean\SimpleCommerce\Tax\Standard\TaxEngine

Statamic Addons: 1 Sites: 2 (Deutsch, Französisch) Stache Watcher: Enabled Static Caching: Disabled Version: 5.23.0 PRO

Statamic Addons duncanmcclean/simple-commerce: 7.4.5

[duncanmcclean]

If you know the fix for this, feel free to submit a PR and I can review & merge it. I'm currently only looking into show-stopping bugs while I work on the next version.

[github-actions[bot]]

Released as part of v7.5.5.