<?php

declare(strict_types=1);

namespace App\Tests\Unit\Service\Twig;

use App\Service\Twig\PhoneNumberExtension;
use libphonenumber\PhoneNumber;
use libphonenumber\PhoneNumberFormat;
use libphonenumber\PhoneNumberUtil;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;
use Twig\TwigFilter;

class PhoneNumberExtensionTest extends TestCase
{
    private PhoneNumberUtil|MockObject $phoneNumberUtil;

    public function setUp(): void
    {
        $this->phoneNumberUtil = $this->getMockBuilder(PhoneNumberUtil::class)
            ->disableOriginalConstructor()
            ->getMock();
    }

    private function getPhoneNumberExtensionMockFor(string $methodName): PhoneNumberExtension|MockObject
    {
        return $this->getMockBuilder(PhoneNumberExtension::class)
            ->setConstructorArgs([$this->phoneNumberUtil])
            ->setMethodsExcept([$methodName])
            ->getMock();
    }

    /**
     * @see PhoneNumberExtension::getFilters()
     */
    public function testGetFilters(): void
    {
        $extension = $this->getPhoneNumberExtensionMockFor('getFilters');
        $filters = $extension->getFilters();

        $this->assertIsArray($filters);
        $this->assertCount(2, $filters);

        // Test first filter (phone_international)
        $this->assertInstanceOf(TwigFilter::class, $filters[0]);
        $this->assertSame('phone_international', $filters[0]->getName());

        $callable = $filters[0]->getCallable();
        $this->assertIsArray($callable);
        $this->assertSame($extension, $callable[0]);
        $this->assertSame('formatPhoneInternational', $callable[1]);

        // Test second filter (phone_national)
        $this->assertInstanceOf(TwigFilter::class, $filters[1]);
        $this->assertSame('phone_national', $filters[1]->getName());

        $callable = $filters[1]->getCallable();
        $this->assertIsArray($callable);
        $this->assertSame($extension, $callable[0]);
        $this->assertSame('formatPhoneNational', $callable[1]);
    }

    /**
     * @see PhoneNumberExtension::formatPhoneInternational()
     */
    public function testFormatPhoneInternational(): void
    {
        $extension = $this->getPhoneNumberExtensionMockFor('formatPhoneInternational');

        $phoneNumber = $this->getMockBuilder(PhoneNumber::class)->getMock();
        $expectedResult = '+33 1 23 45 67 89';

        $this->phoneNumberUtil->expects(self::once())
            ->method('format')
            ->with($phoneNumber, PhoneNumberFormat::INTERNATIONAL)
            ->willReturn($expectedResult);

        $result = $extension->formatPhoneInternational($phoneNumber);

        $this->assertSame($expectedResult, $result);
    }

    /**
     * @see PhoneNumberExtension::formatPhoneInternational()
     */
    public function testFormatPhoneInternationalWithNull(): void
    {
        $extension = $this->getPhoneNumberExtensionMockFor('formatPhoneInternational');

        $this->phoneNumberUtil->expects(self::never())
            ->method('format');

        $result = $extension->formatPhoneInternational(null);

        $this->assertSame('', $result);
    }

    /**
     * @see PhoneNumberExtension::formatPhoneNational()
     */
    public function testFormatPhoneNational(): void
    {
        $extension = $this->getPhoneNumberExtensionMockFor('formatPhoneNational');

        $phoneNumber = $this->getMockBuilder(PhoneNumber::class)->getMock();
        $expectedResult = '01 23 45 67 89';

        $this->phoneNumberUtil->expects(self::once())
            ->method('format')
            ->with($phoneNumber, PhoneNumberFormat::NATIONAL)
            ->willReturn($expectedResult);

        $result = $extension->formatPhoneNational($phoneNumber);

        $this->assertSame($expectedResult, $result);
    }

    /**
     * @see PhoneNumberExtension::formatPhoneNational()
     */
    public function testFormatPhoneNationalWithNull(): void
    {
        $extension = $this->getPhoneNumberExtensionMockFor('formatPhoneNational');

        $this->phoneNumberUtil->expects(self::never())
            ->method('format');

        $result = $extension->formatPhoneNational(null);

        $this->assertSame('', $result);
    }
}