export function buildSampleEmail(params: { title?: string; message?: string; appUrl?: string }) { const title = params.title || 'Welcome to Your App'; const message = params.message || 'This is a sample transactional email sent via Nodemailer. You can customize this template as needed.'; const appUrl = safeHttpUrl(params.appUrl || process.env.NEXT_PUBLIC_APP_URL); const escapedAppUrl = escapeHtml(appUrl); // Basic responsive email with inline styles for broad client support return ` ${escapeHtml(title)}
${escapeHtml( title )}
Notification from Your App

${escapeHtml(message)}

You can safely edit this template at src/emails/sample.ts.
Sent with Nodemailer • ${escapedAppUrl}
`; } function escapeHtml(str: string) { return str .replace(/&/g, '&') .replace(//g, '>') .replace(/"/g, '"') .replace(/'/g, '''); } function safeHttpUrl(value?: string) { if (!value) return 'http://localhost:3000'; try { const url = new URL(value); return url.protocol === 'http:' || url.protocol === 'https:' ? url.toString() : 'http://localhost:3000'; } catch { return 'http://localhost:3000'; } }