import type { NextConfig } from "next";
import { PORTABASE_DEFAULT_SETTINGS } from "./portabase.config";

const isDev = process.env.NODE_ENV === "development";

function buildCSPHeader(): string {
  const { CSP } = PORTABASE_DEFAULT_SETTINGS.SECURITY;

  const directives = [
    `default-src ${CSP.DEFAULT_SRC.join(" ")}`,
    `script-src ${CSP.SCRIPT_SRC.join(" ")}`,
    `style-src ${CSP.STYLE_SRC.join(" ")}`,
    `img-src ${CSP.IMG_SRC.join(" ")}`,
    `font-src ${CSP.FONT_SRC.join(" ")}`,
    `object-src ${CSP.OBJECT_SRC.join(" ")}`,
    `connect-src ${CSP.CONNECT_SRC.join(" ")}`,
    `base-uri ${CSP.BASE_URI.join(" ")}`,
    `form-action ${CSP.FORM_ACTION.join(" ")}`,
    `frame-ancestors ${CSP.FRAME_ANCESTORS.join(" ")}`,
  ];

  if (CSP.BLOCK_ALL_MIXED_CONTENT) {
    directives.push("block-all-mixed-content");
  }

  if (CSP.UPGRADE_INSECURE_REQUESTS) {
    directives.push("upgrade-insecure-requests");
  }

  return directives.join("; ");
}

function buildPermissionsPolicy(): string {
  return Object.entries(PORTABASE_DEFAULT_SETTINGS.SECURITY.PERMISSIONS_POLICY)
    .map(([feature, values]) => `${feature.toLowerCase()}=${values.join(", ")}`)
    .join(", ");
}

const nextConfig: NextConfig = {
  output: "standalone",
  devIndicators: false,
  typescript: {
    ignoreBuildErrors: true,
  },
  logging: {
    browserToTerminal: false,
  },
  experimental: {
    serverActions: {
      bodySizeLimit: "10gb",
    },
    proxyClientMaxBodySize: "10gb",
  },
  async rewrites() {
    if (!isDev) return [];

    return [
      {
        source: "/tus/:path*",
        destination: "http://localhost:1080/tus/:path*",
      },
    ];
  },

  async headers() {
    return [
      {
        source: "/(.*)",
        headers: [
          {
            key: "Content-Security-Policy",
            value: buildCSPHeader(),
          },
          {
            key: "Permissions-Policy",
            value: buildPermissionsPolicy(),
          },
          {
            key: "X-Content-Type-Options",
            value: "nosniff",
          },
          {
            key: "X-Frame-Options",
            value: "DENY",
          },
          {
            key: "Referrer-Policy",
            value: "strict-origin-when-cross-origin",
          },
          {
            key: "Strict-Transport-Security",
            value: "max-age=63072000; includeSubDomains; preload",
          },
        ],
      },
    ];
  },
};

export default nextConfig;