<?php

declare(strict_types=1);

namespace App\Casts;

use Domain\Enums\DiscountType;
use Domain\Models\ValueObjects\DiscountValue;
use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
use Illuminate\Database\Eloquent\Model;
use Money\Currency;
use Money\Money;

/** @implements CastsAttributes<DiscountValue, DiscountValue> */
class DiscountValueCast implements CastsAttributes
{
    /** @param  array<string, mixed>  $attributes */
    public function get(Model $model, string $key, mixed $value, array $attributes): DiscountValue
    {
        $typeRaw = $attributes['type'] ?? null;

        if ($typeRaw === null || (! is_int($typeRaw) && ! is_string($typeRaw))) {
            throw new \UnexpectedValueException('The discount type attribute is missing to cast the value.');
        }

        if ($value === null || (! is_int($value) && ! (is_string($value) && ctype_digit($value)))) {
            throw new \UnexpectedValueException('The discount value must be an integer or a numeric string.');
        }

        $type = DiscountType::tryFrom((int) $typeRaw);

        if ($type === null) {
            throw new \UnexpectedValueException("Unknown discount type raw value: {$typeRaw}");
        }

        // Instanciation selon le type
        if ($type === DiscountType::PERCENT) {
            return DiscountValue::fromPercentage(intval($value));
        }

        return DiscountValue::fromAmount(
            new Money($value, resolve(Currency::class))
        );
    }

    /** @param  array<string, mixed>  $attributes */
    public function set(Model $model, string $key, mixed $value, array $attributes): int
    {
        if ($value === null) {
            throw new \InvalidArgumentException('The value cannot be null.');
        }

        if (! ($value instanceof DiscountValue)) {
            throw new \InvalidArgumentException('The value must be an instance of DiscountValue.');
        }

        $discountValue = $value->value();

        if ($discountValue instanceof Money) {
            return (int) $discountValue->getAmount();
        }

        return $discountValue;
    }
}