next.config.js

const withBundleAnalyzer = require("@next/bundle-analyzer")({
  enabled: process.env.ANALYZE === "true",
})

if (
  !process.env.NEXT_PUBLIC_IPFS_GATEWAY ||
  !process.env.NEXT_PUBLIC_IPFS_GATEWAY_SAFE
) {
  console.log(
    "url env variables NEXT_PUBLIC_IPFS_GATEWAY or NEXT_PUBLIC_IPFS_GATEWAY_SAFE are missing"
  )
  return
}
const urlGateway = new URL(process.env.NEXT_PUBLIC_IPFS_GATEWAY)
const urlGatewaySafe = new URL(process.env.NEXT_PUBLIC_IPFS_GATEWAY_SAFE)

// the main common security headers
const baseSecurityHeaders = [
  {
    key: "X-Frame-Options",
    value: "SAMEORIGIN",
  },
  // Isolates the browsing context exclusively to same-origin documents.
  // Cross-origin documents are not loaded in the same browsing context.
  // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy
  {
    key: "Cross-Origin-Opener-Policy",
    value: "same-origin",
  },
]

const winterUrl = process.env.NEXT_PUBLIC_TZ_NET === "mainnet" ? "https://checkout.usewinter.com/" : "https://sandbox-winter-checkout.onrender.com/"
const articlesAllowedDomains = `https://*.spotify.com/ https://spotify.com https://*.youtube.com/ https://youtube.com https://*.twitter.com/ https://twitter.com https://codepen.io https://openprocessing.org ${winterUrl}`

/** @type {import('next').NextConfig} */
module.exports = withBundleAnalyzer({
  reactStrictMode: true,

  images: {
    imageSizes: [16, 32, 48, 64, 96, 128, 256, 384],
    deviceSizes: [640, 750, 828, 1080, 1200, /*1920, 2048, 3840*/],
    domains: [urlGateway.hostname, urlGatewaySafe.hostname]
  },

  async headers() {
    return [
      {
        source: "/:path*",
        headers: [
          {
            key: "Content-Security-Policy",
            value: `frame-ancestors 'self'; frame-src ${process.env.NEXT_PUBLIC_IPFS_GATEWAY_SAFE} ${articlesAllowedDomains} 'self';`,
          },
          ...baseSecurityHeaders,
        ],
      },
      {
        source: "/sandbox/worker.js",
        headers: [
          {
            key: "service-worker-allowed",
            value: "/",
          },
        ],
      },
      {
        source: "/sandbox/preview.html",
        headers: [
          {
            key: "Content-Security-Policy",
            value: "",
          },
          {
            key: "Cross-Origin-Embedder-Policy",
            value: "require-corp",
          },
        ],
      },
    ]
  },

  redirects() {
    return [
      {
        source: "/objkt/:params*",
        destination: "/gentk/:params*",
        permanent: true,
      },
      // redirects because of the change in the doc structure
      {
        source: "/articles/about-fxhash",
        destination: "/doc/fxhash/overview",
        permanent: true,
      },
      {
        source: "/articles/beta",
        destination: "/doc/fxhash/beta",
        permanent: true,
      },
      {
        source: "/articles/changelog",
        destination: "/doc/fxhash/changelog",
        permanent: true,
      },
      {
        source: "/articles/code-of-conduct",
        destination: "/doc/artist/code-of-conduct",
        permanent: true,
      },
      {
        source: "/articles/collect-mint-tokens",
        destination: "/doc/collect/guide",
        permanent: true,
      },
      {
        source: "/articles/getting-verified",
        destination: "/doc/fxhash/verification",
        permanent: true,
      },
      {
        source: "/articles/guide-mint-generative-token",
        destination: "/doc/artist/guide-publish-generative-token",
        permanent: true,
      },
      {
        source: "/articles/integration-guide",
        destination: "/doc/fxhash/integration-guide",
        permanent: true,
      },
      {
        source: "/articles/moderation-system",
        destination: "/doc/fxhash/moderation",
        permanent: true,
      },
      {
        source: "/u/:name/activity",
        destination: "/u/:name/dashboard/activity",
        permanent: true,
      },
      {
        source: "/pkh/:name/activity",
        destination: "/pkh/:name/dashboard/activity",
        permanent: true,
      },
      {
        source: "/u/:name/creations",
        destination: "/u/:name",
        permanent: true,
      },
      {
        source: "/pkh/:name/creations",
        destination: "/pkh/:name",
        permanent: true,
      },
      {
        source: "/explore/articles",
        destination: "/articles",
        permanent: true,
      },

      process.env.NEXT_PUBLIC_MAINTENANCE_MODE === "1"
        ? {
            source: "/((?!maintenance|_next).*)",
            destination: "/maintenance",
            permanent: false,
          }
        : { source: "/maintenance", destination: "/", permanent: false },
    ]
  },
})