<?php

declare(strict_types=1);

namespace App\Tests\BusProNet\XmlLoader;

use App\BusProNet\Model\Pickup;
use App\BusProNet\Model\Travel;
use App\BusProNet\XmlLoader\PickupLoader;
use League\Flysystem\FilesystemOperator;
use PHPUnit\Framework\TestCase;
use Symfony\Contracts\Cache\CacheInterface;

class PickupLoaderTest extends TestCase
{
    private PickupLoader $loader;

    protected function setUp(): void
    {
        // patchPickupsDetails() is the unit under test; loadById() only has to hand back
        // a Pickup per id, so a subclass beats a partial mock over the XML/cache stack.
        $this->loader = new class($this->createStub(CacheInterface::class), $this->createStub(FilesystemOperator::class)) extends PickupLoader {
            public function loadById(int $id, ?string $filename = 'zustiege.xml'): ?Pickup
            {
                $pickup = new Pickup();
                $pickup->id = $id;
                $pickup->code = 'Z'.$id;
                $pickup->city = 'City '.$id;
                $pickup->postalCode = '0000'.$id;
                $pickup->street = 'Street '.$id;

                return $pickup;
            }
        };
    }

    public function testDropOffsAreOrderedInReverseOfSortedPickups(): void
    {
        $travel = new Travel();

        // Pickups with times: 10 (18:00), 20 (20:00), 30 (22:00)
        $p10 = new Pickup();
        $p10->id = 10;
        $p10->time = new \DateTimeImmutable('2029-12-30 18:00');

        $p20 = new Pickup();
        $p20->id = 20;
        $p20->time = new \DateTimeImmutable('2029-12-30 20:00');

        $p30 = new Pickup();
        $p30->id = 30;
        $p30->time = new \DateTimeImmutable('2029-12-30 22:00');

        // Pickups in non-sorted order
        $travel->pickups = [30 => $p30, 10 => $p10, 20 => $p20];

        // Drop-offs in arbitrary XML order
        $d10 = new Pickup();
        $d10->id = 10;
        $d20 = new Pickup();
        $d20->id = 20;
        $d30 = new Pickup();
        $d30->id = 30;

        $travel->dropOffs = [20 => $d20, 30 => $d30, 10 => $d10];

        $this->loader->patchPickupsDetails($travel);

        // Pickups should be sorted chronologically: 10, 20, 30
        $this->assertSame([10, 20, 30], array_keys($travel->pickups));

        // Drop-offs should be in reverse order: 30, 20, 10
        $this->assertSame([30, 20, 10], array_keys($travel->dropOffs));
    }

    public function testDropOffsNotInPickupsAreAppendedAtEnd(): void
    {
        $travel = new Travel();

        $p10 = new Pickup();
        $p10->id = 10;
        $p10->time = new \DateTimeImmutable('2029-12-30 18:00');

        $p20 = new Pickup();
        $p20->id = 20;
        $p20->time = new \DateTimeImmutable('2029-12-30 20:00');

        $travel->pickups = [10 => $p10, 20 => $p20];

        // Drop-offs include ID 99 which has no matching pickup
        $d10 = new Pickup();
        $d10->id = 10;
        $d20 = new Pickup();
        $d20->id = 20;
        $d99 = new Pickup();
        $d99->id = 99;

        $travel->dropOffs = [99 => $d99, 10 => $d10, 20 => $d20];

        $this->loader->patchPickupsDetails($travel);

        // Drop-offs: reversed pickups (20, 10), then unmatched (99)
        $this->assertSame([20, 10, 99], array_keys($travel->dropOffs));
    }

    public function testDropOffsWithTimeDataAreSortedChronologically(): void
    {
        $travel = new Travel();

        $p10 = new Pickup();
        $p10->id = 10;
        $p10->time = new \DateTimeImmutable('2029-12-30 18:00');

        $p20 = new Pickup();
        $p20->id = 20;
        $p20->time = new \DateTimeImmutable('2029-12-30 20:00');

        $p30 = new Pickup();
        $p30->id = 30;
        $p30->time = new \DateTimeImmutable('2029-12-30 22:00');

        $travel->pickups = [30 => $p30, 10 => $p10, 20 => $p20];

        // Drop-offs with their own time data (return journey times)
        $d10 = new Pickup();
        $d10->id = 10;
        $d10->time = new \DateTimeImmutable('2030-01-05 14:00');

        $d20 = new Pickup();
        $d20->id = 20;
        $d20->time = new \DateTimeImmutable('2030-01-05 12:00');

        $d30 = new Pickup();
        $d30->id = 30;
        $d30->time = new \DateTimeImmutable('2030-01-05 10:00');

        $travel->dropOffs = [10 => $d10, 20 => $d20, 30 => $d30];

        $this->loader->patchPickupsDetails($travel);

        // Drop-offs should be sorted by time, not by reversed pickup order
        $this->assertSame([30, 20, 10], array_keys($travel->dropOffs));
    }
}