<?php

namespace Tests\Unit;

use App\Enums\Product\ProductBillingCycle;
use App\Helpers\OrderHelper;
use App\Models\DomainPricing;
use PHPUnit\Framework\TestCase;

class BillingPricingTest extends TestCase
{
    public function test_cycle_to_months_covers_every_enum_case(): void
    {
        $expected = [
            'onetime' => 1,
            'monthly' => 1,
            'quarterly' => 3,
            'semi_annually' => 6,
            'annually' => 12,
            'biennially' => 24,
            'triennially' => 36,
        ];

        foreach (ProductBillingCycle::cases() as $case) {
            $this->assertSame($expected[$case->value], OrderHelper::cycleToMonths($case->value));
        }
    }

    public function test_cycle_to_months_throws_on_unknown_value(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        OrderHelper::cycleToMonths('semiannually');
    }

    public function test_cycle_to_months_throws_on_null(): void
    {
        $this->expectException(\InvalidArgumentException::class);
        OrderHelper::cycleToMonths(null);
    }

    /** @dataProvider domainPriceProvider */
    public function test_domain_price_formula(int $setupFee, int $firstYear, int $renewal, int $years, int $expected): void
    {
        $pricing = new DomainPricing([
            'setup_fee' => (string) $setupFee,
            'first_year' => $firstYear,
            'recurring_fee' => (string) $renewal,
        ]);

        $this->assertSame($expected, $pricing->orderPrice($years));
    }

    public static function domainPriceProvider(): array
    {
        return [
            'years=1, no setup fee' => [0, 200000, 350000, 1, 200000],
            'years=1, with setup fee' => [50000, 200000, 350000, 1, 250000],
            'years=3, no setup fee' => [0, 200000, 350000, 3, 900000],
            'years=3, with setup fee' => [50000, 200000, 350000, 3, 950000],
        ];
    }
}