import { createClient, type User } from "@supabase/supabase-js";
import type { Context, Next } from "hono";
import nodemailer from "nodemailer";

// Create authentication middleware
export const authMiddleware = async (c: Context, next: Next) => {
  const supabase = c.get("supabase");
  // Extract Bearer token from Authorization header
  const authHeader = c.req.header("Authorization");
  if (!authHeader || !authHeader.startsWith("Bearer ")) {
    return c.json({ error: "Missing or invalid authorization header" }, 401);
  }

  const token = authHeader.substring(7); // Remove "Bearer " prefix

  const {
    data: { user },
    error,
  } = await supabase.auth.getUser(token);

  if (error || !user) {
    return c.json({ error: "Invalid or expired token" }, 401);
  }

  const userTyped = user as User;

  c.set("user", userTyped);
  await next();
};

export const supabaseMiddleware = async (c: Context, next: Next) => {
  const supabase = createClient(
    process.env.SUPABASE_URL as string,
    process.env.SUPABASE_SERVICE_ROLE_KEY as string
  );
  c.set("supabase", supabase);
  await next();
};

export const emailMiddleware = async (c: Context, next: Next) => {
  const transporter = nodemailer.createTransport({
    host: "smtp.gmail.com",
    port: 465,
    secure: true,
    auth: {
      user: process.env.EMAIL_USER,
      pass: process.env.EMAIL_KEY,
    },
  });
  c.set("transporter", transporter);
  await next();
};