next.config.ts

import { withSentryConfig } from "@sentry/nextjs";
import type { NextConfig } from "next";

// Content-Security-Policy (issue #35). External origins with a reason to exist:
// Razorpay (checkout.js script + payment iframe + telemetry), Supabase (storage,
// signed URLs), Fermion/codedamn (video CDN, future embedded rooms/labs), Sentry
// (error ingest). `'unsafe-inline'` in script-src is required by Next.js without
// nonce middleware — nonce hardening is a follow-up under #35.
const csp = [
  "default-src 'self'",
  `script-src 'self' 'unsafe-inline' https://checkout.razorpay.com${
    process.env.NODE_ENV === "development" ? " 'unsafe-eval'" : ""
  }`,
  "style-src 'self' 'unsafe-inline'",
  "img-src 'self' data: blob: https:",
  "media-src 'self' blob: https:",
  "font-src 'self' data:",
  "frame-src 'self' https://api.razorpay.com https://checkout.razorpay.com https://*.fermion.app https://*.codedamn.com",
  "connect-src 'self' https://*.supabase.co wss://*.supabase.co https://api.razorpay.com https://lumberjack.razorpay.com https://checkout.razorpay.com https://*.fermion.app https://*.codedamn.com https://backend.codedamn.com https://*.ingest.sentry.io https://*.sentry.io",
  "worker-src 'self' blob:",
  "object-src 'none'",
  "base-uri 'self'",
  "form-action 'self'",
  "frame-ancestors 'none'",
  "upgrade-insecure-requests",
].join("; ");

const securityHeaders = [
  { key: "Content-Security-Policy", value: csp },
  {
    key: "Strict-Transport-Security",
    value: "max-age=63072000; includeSubDomains",
  },
  { key: "X-Content-Type-Options", value: "nosniff" },
  { key: "X-Frame-Options", value: "DENY" },
  { key: "Referrer-Policy", value: "strict-origin-when-cross-origin" },
  {
    key: "Permissions-Policy",
    value: "camera=(), microphone=(), geolocation=(), payment=(self)",
  },
];

const nextConfig: NextConfig = {
  async headers() {
    return [
      {
        source: "/(.*)",
        headers: securityHeaders,
      },
    ];
  },
};

export default withSentryConfig(nextConfig, {
  // For all available options, see:
  // https://www.npmjs.com/package/@sentry/webpack-plugin#options

  org: "practitionist",

  project: "lms_web",

  // Only print logs for uploading source maps in CI
  silent: !process.env.CI,

  // For all available options, see:
  // https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/

  // Upload a larger set of source maps for prettier stack traces (increases build time)
  widenClientFileUpload: true,

  // Uncomment to route browser requests to Sentry through a Next.js rewrite to circumvent ad-blockers.
  // This can increase your server load as well as your hosting bill.
  // Note: Check that the configured route will not match with your Next.js middleware, otherwise reporting of client-
  // side errors will fail.
  // tunnelRoute: "/monitoring",

  webpack: {
    // Enables automatic instrumentation of Vercel Cron Monitors. (Does not yet work with App Router route handlers.)
    // See the following for more information:
    // https://docs.sentry.io/product/crons/
    // https://vercel.com/docs/cron-jobs
    automaticVercelMonitors: true,

    // Tree-shaking options for reducing bundle size
    treeshake: {
      // Automatically tree-shake Sentry logger statements to reduce bundle size
      removeDebugLogging: true,
    },
  },
});