<?php

class Env
{
    private static array $cache = [];

    public static function load(string $path): void
    {
        if (!file_exists($path)) {
            return;
        }

        $lines = file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
        foreach ($lines as $line) {
            if (str_starts_with(trim($line), '#')) {
                continue;
            }

            if (strpos($line, '=') === false) {
                continue;
            }

            list($key, $value) = explode('=', $line, 2);
            $key = trim($key);
            $value = trim($value);

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

            $_ENV[$key] = $value;
            $_SERVER[$key] = $value;
        }
    }

    public static function get(string $key, mixed $default = null): mixed
    {
        if (isset(self::$cache[$key])) {
            return self::$cache[$key];
        }

        $value = $_ENV[$key] ?? $_SERVER[$key] ?? $default;
        self::$cache[$key] = $value;
        
        return $value;
    }

    public static function bool(string $key, bool $default = false): bool
    {
        $value = self::get($key, $default);
        
        return filter_var($value, FILTER_VALIDATE_BOOLEAN);
    }

    public static function int(string $key, int $default = 0): int
    {
        $value = self::get($key, $default);
        
        return (int) $value;
    }
}