<?php

declare(strict_types=1);

namespace App\Tests\Service;

use App\BusProNet\Model\Insurance;
use App\BusProNet\Model\Travel;
use App\BusProNet\XmlLoader\HotelLoader;
use App\BusProNet\XmlLoader\InsuranceLoader;
use App\BusProNet\XmlLoader\PickupLoader;
use App\Service\TravelEnrichmentService;
use PHPUnit\Framework\TestCase;
use Psr\Log\LoggerInterface;

class TravelEnrichmentServiceTest extends TestCase
{
    private TravelEnrichmentService $service;
    private PickupLoader $pickupLoader;
    private HotelLoader $hotelLoader;
    private InsuranceLoader $insuranceLoader;
    private LoggerInterface $logger;

    protected function setUp(): void
    {
        $this->pickupLoader = $this->createMock(PickupLoader::class);
        $this->hotelLoader = $this->createMock(HotelLoader::class);
        $this->insuranceLoader = $this->createMock(InsuranceLoader::class);
        $this->logger = $this->createMock(LoggerInterface::class);

        $this->service = new TravelEnrichmentService(
            $this->pickupLoader,
            $this->hotelLoader,
            $this->insuranceLoader,
            $this->logger,
        );
    }

    // -------------------------------------------------------------------------
    // enrichFromXml
    // -------------------------------------------------------------------------

    public function testEnrichFromXmlReturnsTrueOnSuccess(): void
    {
        $travel = new Travel();
        $travel->id = 100;

        $this->pickupLoader
            ->expects($this->once())
            ->method('patchPickupsDetails')
            ->with($travel);

        $this->hotelLoader
            ->expects($this->once())
            ->method('patchHotelDetails')
            ->with($travel);

        $this->assertTrue($this->service->enrichFromXml($travel));
    }

    public function testEnrichFromXmlReturnsFalseAndLogsWarningOnFailure(): void
    {
        $travel = new Travel();
        $travel->id = 100;

        $this->pickupLoader
            ->method('patchPickupsDetails')
            ->willThrowException(new \RuntimeException('XML error'));

        $this->logger
            ->expects($this->once())
            ->method('warning')
            ->with('Failed to enrich travel data', $this->arrayHasKey('travelId'));

        $this->assertFalse($this->service->enrichFromXml($travel));
    }

    // -------------------------------------------------------------------------
    // patchInsurances
    // -------------------------------------------------------------------------

    public function testPatchInsurancesReplacesExistingInsurances(): void
    {
        $travel = new Travel();
        $travel->id = 100;

        $stale = new Insurance();
        $stale->id = 'stale';
        $travel->insurances = [$stale];

        $individual = new Insurance();
        $individual->id = '10';
        $individual->package = false;

        $package = new Insurance();
        $package->id = '20';
        $package->package = true;
        $package->containedInsuranceIds = ['10'];
        // InsuranceParser populates containedInsurances at parse time
        $package->containedInsurances = [$individual];

        $this->insuranceLoader
            ->expects($this->once())
            ->method('loadAll')
            ->willReturn([$individual, $package]);

        $this->service->patchInsurances($travel);

        $this->assertSame([$individual, $package], $travel->insurances);
    }

    public function testPatchInsurancesPreservesContainedInsurancesFromParser(): void
    {
        $travel = new Travel();
        $travel->id = 100;

        $individual = new Insurance();
        $individual->id = '10';
        $individual->package = false;

        $package = new Insurance();
        $package->id = '20';
        $package->package = true;
        $package->containedInsuranceIds = ['10'];
        $package->containedInsurances = [$individual];

        $this->insuranceLoader->method('loadAll')->willReturn([$individual, $package]);

        $this->service->patchInsurances($travel);

        $this->assertCount(1, $package->containedInsurances);
        $this->assertSame($individual, $package->containedInsurances[0]);
    }

    public function testPatchInsurancesLogsWarningOnFailureAndDoesNotThrow(): void
    {
        $travel = new Travel();
        $travel->id = 100;
        $original = [];
        $travel->insurances = $original;

        $this->insuranceLoader
            ->method('loadAll')
            ->willThrowException(new \RuntimeException('XML parse error'));

        $this->logger
            ->expects($this->once())
            ->method('warning')
            ->with('Failed to load insurance data', $this->arrayHasKey('travelId'));

        // Must not throw; insurances stay unchanged
        $this->service->patchInsurances($travel);

        $this->assertSame($original, $travel->insurances);
    }
}