Enelix-EMS/tests/LizenzpruefungTest.php

<?php

declare(strict_types=1);

namespace Belevo\EnelixEMS\Tests;

use Belevo\EnelixEMS\Lizenzpruefung;
use DateTimeImmutable;
use InvalidArgumentException;
use PHPUnit\Framework\TestCase;

final class LizenzpruefungTest extends TestCase
{
    private const INSTALLATION_ID = '123e4567-e89b-42d3-a456-426614174000';

    public function testStandardLizenzGibtGrundregelungFrei(): void
    {
        Lizenzpruefung::pruefeLease(
            $this->lease('manager_standard'),
            self::INSTALLATION_ID,
            0,
            $this->zeit('2026-09-19T12:00:00Z')
        );

        self::assertTrue(true);
    }

    public function testPeakLizenzGibtLastspitzenmodusFrei(): void
    {
        Lizenzpruefung::pruefeLease(
            $this->lease('manager_peak'),
            self::INSTALLATION_ID,
            2,
            $this->zeit('2026-09-19T12:00:00Z')
        );

        self::assertTrue(true);
    }

    public function testStandardLizenzSperrtLastspitzenmodus(): void
    {
        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Peak Shaving ist nicht lizenziert.');

        Lizenzpruefung::pruefeLease(
            $this->lease('manager_standard'),
            self::INSTALLATION_ID,
            1,
            $this->zeit('2026-09-19T12:00:00Z')
        );
    }

    public function testAbgelaufeneOfflineFreigabeWirdAbgelehnt(): void
    {
        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Offline-Freigabe ist abgelaufen.');

        Lizenzpruefung::pruefeLease(
            $this->lease('manager_peak'),
            self::INSTALLATION_ID,
            0,
            $this->zeit('2026-10-03T12:00:00Z')
        );
    }

    public function testAndereInstallationWirdAbgelehnt(): void
    {
        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('anderen Installation');

        Lizenzpruefung::pruefeLease(
            $this->lease('manager_standard'),
            '223e4567-e89b-42d3-a456-426614174000',
            0,
            $this->zeit('2026-09-19T12:00:00Z')
        );
    }

    public function testErneuerungWirdAbRefreshAfterFaellig(): void
    {
        $lease = $this->lease('manager_standard');

        self::assertFalse(Lizenzpruefung::erneuerungFaellig(
            $lease,
            $this->zeit('2026-09-20T11:59:59Z')
        ));
        self::assertTrue(Lizenzpruefung::erneuerungFaellig(
            $lease,
            $this->zeit('2026-09-20T12:00:00Z')
        ));
    }

    public function testLeaseOhneManagerBerechtigungWirdAbgelehnt(): void
    {
        $lease = $this->lease('consumer_single');

        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage('Manager-Berechtigung fehlt.');
        Lizenzpruefung::pruefeLease(
            $lease,
            self::INSTALLATION_ID,
            0,
            $this->zeit('2026-09-19T12:00:00Z')
        );
    }

    public function testZweiLizenzierteBoilerWerdenFreigegeben(): void
    {
        $lease = $this->lease('manager_standard');
        $lease['entitlements'][] = [
            'sku' => 'ENX-BOILER-MULTI',
            'catalog_key' => 'boiler_multi',
            'quantity' => 2,
            'status' => 'active',
        ];

        self::assertSame(2, Lizenzpruefung::berechtigungsMenge($lease, 'boiler_multi'));
        Lizenzpruefung::pruefeVerbrauchermengen($lease, ['boiler_multi' => 2]);

        self::assertTrue(true);
    }

    public function testDritterBoilerBeiZweiLizenzenWirdAbgelehnt(): void
    {
        $lease = $this->lease('manager_standard');
        $lease['entitlements'][] = [
            'sku' => 'ENX-BOILER-MULTI',
            'catalog_key' => 'boiler_multi',
            'quantity' => 2,
            'status' => 'active',
        ];

        $this->expectException(InvalidArgumentException::class);
        $this->expectExceptionMessage(
            'Lizenzkontingent fuer boiler_multi ueberschritten: 3 verwendet, 2 lizenziert.'
        );
        Lizenzpruefung::pruefeVerbrauchermengen($lease, ['boiler_multi' => 3]);
    }

    public function testVerbraucherkontingenteWerdenJeTypSummiertUndGetrenntGeprueft(): void
    {
        $lease = $this->lease('manager_standard');
        $lease['entitlements'] = array_merge($lease['entitlements'], [
            [
                'catalog_key' => 'boiler_multi',
                'quantity' => 1,
                'status' => 'active',
            ],
            [
                'catalog_key' => 'boiler_multi',
                'quantity' => 1,
                'status' => 'active',
            ],
            [
                'catalog_key' => 'battery',
                'quantity' => 1,
                'status' => 'active',
            ],
            [
                'catalog_key' => 'battery',
                'quantity' => 10,
                'status' => 'revoked',
            ],
        ]);

        self::assertSame(2, Lizenzpruefung::berechtigungsMenge($lease, 'boiler_multi'));
        self::assertSame(1, Lizenzpruefung::berechtigungsMenge($lease, 'battery'));
        Lizenzpruefung::pruefeVerbrauchermengen($lease, [
            'boiler_multi' => 2,
            'battery' => 1,
        ]);

        self::assertTrue(true);
    }

    public function testLizenzcodeWirdWieAufDemServerNormalisiert(): void
    {
        self::assertSame(
            'ENX23456789ABCDEFGH',
            Lizenzpruefung::normalisiereCode('enx-2345-6789-abcd-efgh')
        );
        self::assertTrue(Lizenzpruefung::istLizenzcodeGueltig('ENX-2345-6789-ABCD-EFGH'));
        self::assertFalse(Lizenzpruefung::istLizenzcodeGueltig('ENX-OOOO-OOOO-OOOO-OOOO'));
    }

    /**
     * @return array<string, mixed>
     */
    private function lease(string $sku): array
    {
        return [
            'status' => 'active',
            'development' => true,
            'installationId' => self::INSTALLATION_ID,
            'orderId' => '323e4567-e89b-42d3-a456-426614174000',
            'entitlements' => [[
                'sku' => $sku,
                'catalog_key' => $sku,
                'quantity' => 1,
                'status' => 'active',
            ]],
            'issuedAt' => '2026-09-19T12:00:00.000Z',
            'refreshAfter' => '2026-09-20T12:00:00.000Z',
            'offlineUntil' => '2026-10-03T12:00:00.000Z',
        ];
    }

    private function zeit(string $wert): int
    {
        return (new DateTimeImmutable($wert))->getTimestamp();
    }
}