<?php

declare(strict_types=1);

namespace App\Tests\Service;

use App\Exception\PontBasculeException;
use App\Service\PontBasculePayloadDecoder;
use PHPUnit\Framework\TestCase;

/**
 * @internal
 */
final class PontBasculePayloadDecoderTest extends TestCase
{
    public function testDecodeValidPayload(): void
    {
        $decoder = new PontBasculePayloadDecoder();

        $payload = json_encode([
            'response_ascii' => "\u{0001}\u{0002}040200\u{0002}01001420.kg \u{0002}02000000.kg \u{0002}03001420.kg \u{0002}9900121",
        ], JSON_THROW_ON_ERROR);

        $result = $decoder->decode($payload);

        self::assertSame(121, $result->getDsd());
        self::assertSame(1420.0, $result->getWeight());
    }

    public function testDecodeInvalidPayloadThrows(): void
    {
        $decoder = new PontBasculePayloadDecoder();

        $this->expectException(PontBasculeException::class);
        $this->expectExceptionMessage('Réponse invalide du pont bascule.');

        $decoder->decode('not-json');
    }

    public function testDecodeMissingFieldThrows(): void
    {
        $decoder = new PontBasculePayloadDecoder();
        $payload = json_encode(['ok' => true], JSON_THROW_ON_ERROR);

        $this->expectException(PontBasculeException::class);
        $this->expectExceptionMessage('Réponse incomplète du pont bascule: champ "response_ascii" manquant.');

        $decoder->decode($payload);
    }

    public function testDecodeUnreadableValuesThrows(): void
    {
        $decoder = new PontBasculePayloadDecoder();
        $payload = json_encode(['response_ascii' => 'no-data'], JSON_THROW_ON_ERROR);

        $this->expectException(PontBasculeException::class);
        $this->expectExceptionMessage('Impossible de lire les valeurs de pesée du pont bascule.');

        $decoder->decode($payload);
    }
}