<?php
// Mail configuration sourced from environment variables.
// Updated to prioritize local .env in workspace root.

function env_val(string $key, $default = null) {
    $v = getenv($key);
    return ($v === false || $v === null || $v === '') ? $default : $v;
}

// Loads .env files (either executor/.env or local .env)
function load_env(): void {
    $paths = [__DIR__ . '/../../.env', __DIR__ . '/../.env']; // executor/.env and workspace/.env
    foreach ($paths as $envPath) {
        $envPath = realpath($envPath);
        if ($envPath && is_readable($envPath)) {
            $lines = @file($envPath, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) ?: [];
            foreach ($lines as $line) {
                if ($line[0] === '#' || trim($line) === '') continue;
                if (!str_contains($line, '=')) continue;
                [$k, $v] = array_map('trim', explode('=', $line, 2));
                $v = trim($v, "' ");
                // Set env if not set
                if ($k !== '' && (getenv($k) === false || getenv($k) === '')) {
                    putenv("{$k}={$v}");
                }
            }
        }
    }
}

load_env();

$transport   = env_val('MAIL_TRANSPORT', 'smtp');
$smtp_host   = env_val('SMTP_HOST');
$smtp_port   = (int) env_val('SMTP_PORT', 587);
$smtp_secure = env_val('SMTP_SECURE', 'tls');
$smtp_user   = env_val('SMTP_USER');
$smtp_pass   = env_val('SMTP_PASS');

$from_email  = env_val('MAIL_FROM', 'no-reply@localhost');
$from_name   = env_val('MAIL_FROM_NAME', 'App');
$reply_to    = env_val('MAIL_REPLY_TO');

return [
    'transport'   => $transport,
    'smtp_host'   => $smtp_host,
    'smtp_port'   => $smtp_port,
    'smtp_secure' => $smtp_secure,
    'smtp_user'   => $smtp_user,
    'smtp_pass'   => $smtp_pass,
    'from_email'  => $from_email,
    'from_name'   => $from_name,
    'reply_to'    => $reply_to,
];