<?php

declare(strict_types=1);

namespace App\Tests\Unit\Service\Organization;

use App\Service\Organization\Trial;
use App\Service\Utils\DatesUtils;
use PHPUnit\Framework\TestCase;

/**
 * Unit tests for Trial class
 * @see Trial
 */
class TrialTest extends TestCase
{
    private DatesUtils $datesUtils;
    private Trial $trial;

    public function setUp(): void
    {
        $this->datesUtils = new DatesUtils();
        $this->trial = new Trial($this->datesUtils);
    }

    public function tearDown(): void
    {
        DatesUtils::clearFakeDatetime();
    }

    /**
     * @see Trial::getTrialCountdown()
     */
    public function testGetTrialCountdownWithNullStartDate(): void
    {
        $result = $this->trial->getTrialCountdown(null);

        $this->assertEquals(0, $result);
    }

    /**
     * @see Trial::getTrialCountdown()
     */
    public function testGetTrialCountdownWithRecentStartDate(): void
    {
        // Set up a trial start date
        $trialStartDate = new \DateTime('2023-01-01');

        // Set the current date to be 10 days after the trial start date
        DatesUtils::setFakeDatetime('2023-01-11');

        $result = $this->trial->getTrialCountdown($trialStartDate);

        // Should return 30 - 10 = 20 days remaining
        $this->assertEquals(20, $result);
    }

    /**
     * @see Trial::getTrialCountdown()
     */
    public function testGetTrialCountdownWithExactly30DaysAgo(): void
    {
        // Set up a trial start date
        $trialStartDate = new \DateTime('2023-01-01');

        // Set the current date to be 30 days after the trial start date
        DatesUtils::setFakeDatetime('2023-01-31');

        $result = $this->trial->getTrialCountdown($trialStartDate);

        // Should return 30 - 30 = 0 days remaining
        $this->assertEquals(0, $result);
    }

    /**
     * @see Trial::getTrialCountdown()
     */
    public function testGetTrialCountdownWithOldStartDate(): void
    {
        // Set up a trial start date
        $trialStartDate = new \DateTime('2023-01-01');

        // Set the current date to be 40 days after the trial start date
        DatesUtils::setFakeDatetime('2023-02-10');

        $result = $this->trial->getTrialCountdown($trialStartDate);

        // Should return 0 days remaining since the trial has expired
        $this->assertEquals(0, $result);
    }
}