CsvEnvVarProcessor.php

<?php
// SPDX-License-Identifier: BSD-3-Clause

declare(strict_types=1);

namespace Nbgrp\EnvBundle;

use Symfony\Component\DependencyInjection\EnvVarProcessorInterface;
use Symfony\Component\DependencyInjection\Exception\BadMethodCallException;
use Symfony\Component\DependencyInjection\Exception\RuntimeException;

// @codeCoverageIgnoreStart
if (class_exists(CsvEnvVarProcessor::class, false)) {
    return;
}
// @codeCoverageIgnoreEnd

final class CsvEnvVarProcessor implements EnvVarProcessorInterface
{
    /** @var array<string, string> */
    private $delimiterMap;

    /**
     * @param array<string, string> $delimiterMap
     */
    public function __construct(array $delimiterMap)
    {
        $this->delimiterMap = $delimiterMap;
    }

    #[\Override]
    public static function getProvidedTypes(): array
    {
        // NB
        throw new BadMethodCallException('Unexpected call of '.__FUNCTION__);
        // NB
    }

    /**
     * @return non-empty-list<string|null>
     */
    #[\Override]
    public function getEnv(string $prefix, string $name, \Closure $getEnv): array
    {
        if (\array_key_exists($prefix, $this->delimiterMap) === false) {
            throw new RuntimeException('There is no delimiter for prefix "'.$prefix.'".');
        }

        $delimiter = $this->delimiterMap[$prefix];
        $env = $getEnv($name);

        if (!\is_string($env)) {
            throw new RuntimeException('Environment variable "'.$name.'" should be a string.');
        }

        // @phpstan-ignore greaterOrEqual.alwaysTrue
        return str_getcsv($env, $delimiter, '"', \PHP_VERSION_ID >= 70400 ? '' : '\\');
    }
}