<?php

namespace Sethrey\SysvoteWebsite;

/**
 * Minimal .env file loader — no external dependency required.
 * Reads KEY=VALUE lines and exposes them via getenv()/$_ENV.
 */
class EnvLoader
{
    public static function load(string $path): void
    {
        if (!is_file($path) || !is_readable($path)) {
            throw new \RuntimeException("Fichier .env introuvable ou illisible : {$path}");
        }

        $lines = file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);

        foreach ($lines as $line) {
            $line = trim($line);

            // Ignore comments
            if ($line === '' || str_starts_with($line, '#')) {
                continue;
            }

            if (!str_contains($line, '=')) {
                continue;
            }

            [$name, $value] = explode('=', $line, 2);
            $name = trim($name);
            $value = trim($value);

            // Strip surrounding quotes if present
            if (
                (str_starts_with($value, '"') && str_ends_with($value, '"')) ||
                (str_starts_with($value, "'") && str_ends_with($value, "'"))
            ) {
                $value = substr($value, 1, -1);
            }

            if ($name === '') {
                continue;
            }

            putenv("{$name}={$value}");
            $_ENV[$name] = $value;
            $_SERVER[$name] = $value;
        }
    }

    public static function get(string $key, ?string $default = null): ?string
    {
        $value = getenv($key);
        return $value === false ? $default : $value;
    }
}