<?php

declare(strict_types=1);

namespace App\Tests\Chatbot;

use App\Chatbot\TravelPeriods;
use PHPUnit\Framework\TestCase;
use Symfony\Component\Clock\MockClock;

class TravelPeriodsTest extends TestCase
{
    private TravelPeriods $periods;

    protected function setUp(): void
    {
        $this->periods = new TravelPeriods([
            ['label' => 'Herbst', 'from' => '2026-09-01', 'to' => '2026-10-07'],
            ['label' => 'Silvester', 'from' => '2026-12-26', 'to' => '2027-01-03'],
            ['label' => '1 Januarwoche', 'from' => '2027-01-02', 'to' => '2027-01-09'],
        ], new MockClock('2026-10-08 10:00:00'));
    }

    public function testFindsACurrentPeriodByLabelIgnoringCase(): void
    {
        $range = $this->periods->find(' silvester ');

        self::assertSame('2026-12-26', $range['from']->format('Y-m-d'));
        self::assertSame('2027-01-03', $range['to']->format('Y-m-d'));
    }

    public function testAPeriodWhoseEndHasPassedIsNoLongerOffered(): void
    {
        self::assertNull($this->periods->find('Herbst'));
        self::assertSame(['Silvester', '1 Januarwoche'], $this->periods->labels());
    }

    public function testAnUnknownLabelIsNull(): void
    {
        self::assertNull($this->periods->find('Pfingsten'));
    }
}