import fs from 'fs';
import path from 'path';
//import { generateClientMetadata } from './src/helpers/oauthClient'
export const generateClientMetadata = (appOrigin: string) => {
  const callbackPath = '/callback';

  return {
      "client_id": `${appOrigin}/client-metadata.json`,
      "client_name": "ForumTest",
      "client_uri": appOrigin,
      "logo_uri": `${appOrigin}/logo192.png`,
      "tos_uri": `${appOrigin}/terms-of-service`,
      "policy_uri": `${appOrigin}/privacy-policy`,
      "redirect_uris": [`${appOrigin}${callbackPath}`]  as [string, ...string[]],
      "scope": "atproto transition:generic",
      "grant_types": ["authorization_code", "refresh_token"] as ["authorization_code", "refresh_token"],
      "response_types": ["code"] as ["code"],
      "token_endpoint_auth_method": "none" as "none",
      "application_type": "web" as "web",
      "dpop_bound_access_tokens": true
    };
}


export function generateMetadataPlugin({prod, dev}:{prod: string, dev: string}) {
  return {
    name: 'vite-plugin-generate-metadata',
    config(_config: any, { mode }: any) {
      let appOrigin;
      if (mode === 'production') {
        appOrigin = prod
        if (!appOrigin || !appOrigin.startsWith('https://')) {
          throw new Error('VITE_APP_ORIGIN environment variable must be set to a valid HTTPS URL for production build.');
        }
      } else {
        appOrigin = dev;
      }
      
      
      const metadata = generateClientMetadata(appOrigin);
      const outputPath = path.resolve(process.cwd(), 'public', 'client-metadata.json');

      fs.writeFileSync(outputPath, JSON.stringify(metadata, null, 2));

      // /*mass comment*/ console.log(`✅ Generated client-metadata.json for ${appOrigin}`);
    },
  };
}