<?php

declare(strict_types=1);

namespace App\Tests\Form\Service;

use App\BusProNet\Model\Travel;
use App\Form\Model\BookingCreateDto;
use App\Form\Model\ParticipantDto;
use App\Form\Service\ParticipantLicensePlateFieldHandler;
use PHPUnit\Framework\TestCase;

class ParticipantLicensePlateFieldHandlerTest extends TestCase
{
    private ParticipantLicensePlateFieldHandler $handler;

    protected function setUp(): void
    {
        $this->handler = new ParticipantLicensePlateFieldHandler();
    }

    public function testGetFieldName(): void
    {
        $this->assertSame('licensePlate', $this->handler->getFieldName());
    }

    public function testGetDependencies(): void
    {
        $this->assertSame(['parking'], $this->handler->getDependencies());
    }

    public function testShouldProcessAlwaysReturnsTrue(): void
    {
        $this->assertTrue($this->handler->shouldProcess([], 0));
        $this->assertTrue($this->handler->shouldProcess(['some' => 'data'], 5));
    }

    public function testProcessFieldWithoutParticipant(): void
    {
        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $submittedData = ['licensePlate' => 'AB-CD 123'];

        $this->handler->processField($submittedData, $bookingDto, 0);

        // Should handle gracefully when participant doesn't exist
        $this->expectNotToPerformAssertions();
    }

    public function testProcessFieldClearsLicensePlateWhenParkingNotSelected(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = false; // Parking not selected
        $participant->licensePlate = 'AB-CD 123'; // Should be cleared

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = ['licensePlate' => 'XY-ZZ 999'];

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertNull($participant->licensePlate);
    }

    public function testProcessFieldSetsLicensePlateWhenParkingSelected(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = ['licensePlate' => 'AB-CD 123'];

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertSame('AB-CD 123', $participant->licensePlate);
    }

    public function testProcessFieldHandlesEmptyLicensePlate(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = ['licensePlate' => ''];

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertNull($participant->licensePlate);
    }

    public function testProcessFieldHandlesNullLicensePlate(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = ['licensePlate' => null];

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertNull($participant->licensePlate);
    }

    public function testProcessFieldTrimsWhitespace(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = ['licensePlate' => '  AB-CD 123  '];

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertSame('AB-CD 123', $participant->licensePlate);
    }

    public function testProcessFieldHandlesWhitespaceOnlyAsEmpty(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = ['licensePlate' => '   '];

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertNull($participant->licensePlate);
    }

    public function testProcessFieldHandlesNonStringValues(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        // Test with integer value
        $submittedData = ['licensePlate' => 123];
        $this->handler->processField($submittedData, $bookingDto, 0);
        $this->assertNull($participant->licensePlate);

        // Test with array value
        $submittedData = ['licensePlate' => ['invalid']];
        $this->handler->processField($submittedData, $bookingDto, 0);
        $this->assertNull($participant->licensePlate);
    }

    public function testProcessFieldHandlesMissingLicensePlateField(): void
    {
        $participant = new ParticipantDto();
        $participant->parking = true; // Parking selected

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant];

        $submittedData = []; // No licensePlate field

        $this->handler->processField($submittedData, $bookingDto, 0);

        $this->assertNull($participant->licensePlate);
    }

    public function testProcessFieldWithDifferentParticipantIndex(): void
    {
        $participant1 = new ParticipantDto();
        $participant1->parking = false;

        $participant2 = new ParticipantDto();
        $participant2->parking = true;

        $travel = new Travel();
        $bookingDto = new BookingCreateDto($travel, 1);
        $bookingDto->participants = [$participant1, $participant2];

        $submittedData = ['licensePlate' => 'AB-CD 123'];

        // Process for participant at index 1
        $this->handler->processField($submittedData, $bookingDto, 1);

        $this->assertNull($participant1->licensePlate); // Should not be affected
        $this->assertSame('AB-CD 123', $participant2->licensePlate); // Should be set
    }
}