<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Auth;

use Unsupervised\Schedular\Auth\StudentSchedule;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class StudentScheduleTest extends TestCase
{
    public function testPartitionSplitsByNow(): void
    {
        $rows = [
            ['start_dt' => '2026-06-10 09:00:00', 'label' => 'future-a'],
            ['start_dt' => '2026-06-01 09:00:00', 'label' => 'past-a'],
            ['start_dt' => '2026-06-20 09:00:00', 'label' => 'future-b'],
            ['start_dt' => '2026-05-15 09:00:00', 'label' => 'past-b'],
        ];

        $result = StudentSchedule::partition($rows, '2026-06-08 12:00:00');

        self::assertSame(['future-a', 'future-b'], array_column($result['upcoming'], 'label'));
        self::assertSame(['past-a', 'past-b'], array_column($result['past'], 'label'));
    }

    public function testUpcomingSortedAscendingAndPastDescending(): void
    {
        $rows = [
            ['start_dt' => '2026-06-20 09:00:00'],
            ['start_dt' => '2026-06-10 09:00:00'],
            ['start_dt' => '2026-05-01 09:00:00'],
            ['start_dt' => '2026-05-30 09:00:00'],
        ];

        $result = StudentSchedule::partition($rows, '2026-06-08 00:00:00');

        self::assertSame(
            ['2026-06-10 09:00:00', '2026-06-20 09:00:00'],
            array_column($result['upcoming'], 'start_dt')
        );
        self::assertSame(
            ['2026-05-30 09:00:00', '2026-05-01 09:00:00'],
            array_column($result['past'], 'start_dt')
        );
    }

    public function testRowsWithoutStartDateFallIntoPast(): void
    {
        $rows = [
            ['start_dt' => '', 'label' => 'no-slot'],
            ['start_dt' => '2026-06-10 09:00:00', 'label' => 'future'],
        ];

        $result = StudentSchedule::partition($rows, '2026-06-08 00:00:00');

        self::assertSame(['future'], array_column($result['upcoming'], 'label'));
        self::assertSame(['no-slot'], array_column($result['past'], 'label'));
    }

    public function testEmptyInput(): void
    {
        $result = StudentSchedule::partition([], '2026-06-08 00:00:00');

        self::assertSame([], $result['upcoming']);
        self::assertSame([], $result['past']);
    }
}