<?php

declare(strict_types=1);

namespace App\Tests\Form\Model;

use App\Form\Model\AcceptedVoucherDto;
use App\Form\Model\AcceptedVouchersDto;
use PHPUnit\Framework\TestCase;

class AcceptedVouchersTest extends TestCase
{
    public function testAddVoucherCalculatesTotalDiscount(): void
    {
        $acceptedVouchers = new AcceptedVouchersDto();

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PROMOTIONAL,
            code: 'PROMO10',
            amount: 50.00
        ));

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PURCHASE,
            code: 'G1234',
            amount: 100.00
        ));

        $this->assertEquals(150.0, $acceptedVouchers->getTotalDiscount());
        $this->assertCount(2, $acceptedVouchers->getVouchers());
    }

    public function testFilterVouchersByType(): void
    {
        $acceptedVouchers = new AcceptedVouchersDto();

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PROMOTIONAL,
            code: 'PROMO10',
            amount: 50.00
        ));

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PURCHASE,
            code: 'G1234',
            amount: 100.00
        ));

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_GOODWILL,
            code: 'K5678',
            amount: 75.00
        ));

        $this->assertCount(1, $acceptedVouchers->getPromotionalVouchers());
        $this->assertCount(1, $acceptedVouchers->getPurchaseVouchers());
        $this->assertCount(1, $acceptedVouchers->getGoodwillVouchers());
    }

    public function testHasVouchersReturnsFalseWhenEmpty(): void
    {
        $acceptedVouchers = new AcceptedVouchersDto();

        $this->assertFalse($acceptedVouchers->hasVouchers());
        $this->assertEquals(0, $acceptedVouchers->count());
    }

    public function testHasVouchersReturnsTrueWhenNotEmpty(): void
    {
        $acceptedVouchers = new AcceptedVouchersDto();

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PROMOTIONAL,
            code: 'PROMO10',
            amount: 50.00
        ));

        $this->assertTrue($acceptedVouchers->hasVouchers());
        $this->assertEquals(1, $acceptedVouchers->count());
    }

    public function testFloatPrecisionHandling(): void
    {
        $acceptedVouchers = new AcceptedVouchersDto();

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PROMOTIONAL,
            code: 'PROMO1',
            amount: 33.33
        ));

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PROMOTIONAL,
            code: 'PROMO2',
            amount: 33.33
        ));

        $acceptedVouchers->addVoucher(new AcceptedVoucherDto(
            type: AcceptedVoucherDto::TYPE_PROMOTIONAL,
            code: 'PROMO3',
            amount: 33.34
        ));

        // Should be exactly 100.00 with proper rounding
        $this->assertEquals(100.0, $acceptedVouchers->getTotalDiscount());
    }
}