import nodemailer from "nodemailer";

const transporter = nodemailer.createTransport({
  host: process.env.SMTP_HOST || "host.docker.internal",
  port: Number(process.env.SMTP_PORT || 25),
  secure: false,
  connectionTimeout: 5000,
  greetingTimeout: 5000,
  socketTimeout: 10000,
  tls: { rejectUnauthorized: false },
});

export async function sendVerificationEmail(email: string, code: string): Promise<boolean> {
  try {
    const info = await transporter.sendMail({
      from: "DocFast <noreply@docfast.dev>",
      to: email,
      subject: "DocFast - Verify your email",
      text: `Your DocFast verification code is: ${code}\n\nThis code expires in 15 minutes.\n\nIf you didn't sign up for DocFast, ignore this email.`,
    });
    console.log(`📧 Verification email sent to ${email}: ${info.messageId}`);
    return true;
  } catch (err) {
    console.error(`📧 Failed to send verification email to ${email}:`, err);
    return false;
  }
}

export async function sendRecoveryEmail(email: string, apiKey: string): Promise<boolean> {
  try {
    const info = await transporter.sendMail({
      from: "DocFast <noreply@docfast.dev>",
      to: email,
      subject: "DocFast - Your API Key Recovery",
      text: `Here is your DocFast API key:\n\n${apiKey}\n\nKeep this key safe. Do not share it with anyone.\n\nIf you didn't request this recovery, please ignore this email — your key has not been changed.`,
    });
    console.log(`📧 Recovery email sent to ${email}: ${info.messageId}`);
    return true;
  } catch (err) {
    console.error(`📧 Failed to send recovery email to ${email}:`, err);
    return false;
  }
}