Nextjs app router -> generate routes scripts (not handle dynamic route yet)

generateRoutes.js

// generateRoutes.js
const fs = require('fs');
const path = require('path');

// the app folder path
const appDir = path.join(__dirname, 'src/app');
// the output path
const routeFile = path.join(__dirname, 'src/routes.ts');

function toCamelCase(str) {
  return str
    .replace(/[^a-zA-Z0-9]/g, ' ')
    .replace(/(?:^\w|[A-Z]|\b\w)/g, (word, index) => (index === 0 ? word.toLowerCase() : word.toUpperCase()))
    .replace(/\s+/g, '');
}

function walk(dir, prefix = '') {
  const routes = {};

  const files = fs.readdirSync(dir);

  for (const file of files) {
    const fullPath = path.join(dir, file);
    const relativePath = path.relative(appDir, fullPath);

    const stat = fs.statSync(fullPath);

    if (stat.isDirectory()) {
      const hasPageFile = fs.readdirSync(fullPath).some((f) => f.startsWith('page.') && !f.startsWith('_'));

      if (hasPageFile) {
        const urlPath = '/' + relativePath.replace(/\\/g, '/');
        // TODO: Handle dynamic routes
        // // Generate function name for dynamic routes
        // function generateDynamicRouteName(path, params) {
        //   const segments = path.split('/').filter(Boolean);
        //   let nameParts = ['get'];
        //   segments.forEach((segment) => {
        //     if (segment.startsWith('${') && segment.endsWith('}')) {
        //       const param = segment.slice(2, -1); // Extract param from ${param}
        //       nameParts.push(capitalize(param));
        //     } else {
        //       nameParts.push(capitalize(sanitizeSegment(segment)));
        //     }
        //   });
        //   nameParts.push('Route');
        //   return nameParts.join('');
        // }
        // routePath = urlPath.replace(`[${param}]`, `\${${param}}`);
        // const functionName = generateDynamicRouteName(routePath, params);
        // const paramsString = params.join(', ');
        // routesCode += `export const ${functionName} = (${paramsString}) => \`${routePath}\`;\n`;
        const key = toCamelCase(relativePath.replace(/\/page.*$/, ''));
        routes[key] = urlPath;
      }

      const subRoutes = walk(fullPath, prefix + file + '/');
      Object.assign(routes, subRoutes);
    }
  }

  return routes;
}

const routes = walk(appDir);

let fileContent = `// Auto-generated by generateRoutes.js\n\nexport const ROUTES = {\n`;

for (const [key, value] of Object.entries(routes)) {
  fileContent += `  ${key}: '${value}',\n`;
}

fileContent += `};\n`;

fs.writeFileSync(routeFile, fileContent);

console.log(`✅ Route file generated at ${routeFile}`);

routes.js

// Auto-generated by generateRoutes.js

export const ROUTES = {
  AuthCheckMail: '/(auth)/check-mail',
  AuthForgetPass: '/(auth)/forget-pass',
  AuthLogin: '/(auth)/login',
  AuthRegister: '/(auth)/register',
  AuthResetPass: '/(auth)/reset-pass',
  AuthVerifyCode: '/(auth)/verify-code',
  hostAdministrationIdentityUsers: '/host/(administration)/identity/users',
  hostDashboardAnalytics: '/host/dashboard/analytics',
  hostDashboardDefault: '/host/dashboard/default',
  hostSamplePage: '/host/sample-page',
  hostDtAdministrationIdentityUsers: '/host-dt/(administration)/identity/users',
  hostDtDashboardDefault: '/host-dt/dashboard/default',
  hostDtGeneralManagementRelationship: '/host-dt/general-management/relationship',
  hostDtGeneralManagementWarehouseList: '/host-dt/general-management/warehouse-list',
  hostDtGeneralManagementWhUserList: '/host-dt/general-management/wh-user-list',
  hostDtRequestManagementManuAccess: '/host-dt/request-management/manu-access',
  hostDtRequestManagementOnboardWhUsers: '/host-dt/request-management/onboard-wh-users',
  hostDtRequestManagementOnboardWhUsersCreateOnboardWhUsers: '/host-dt/request-management/onboard-wh-users/create-onboard-wh-users',
  hostDtRequestManagementOnboardWhUsersIdEditOnboardWhUserRequest: '/host-dt/request-management/onboard-wh-users/[id]/edit-onboard-wh-user-request',
  hostDtRequestManagementOnboardWhUsersIdOnboardWhUsersDetail: '/host-dt/request-management/onboard-wh-users/[id]/onboard-wh-users-detail',
  hostDtSamplePage: '/host-dt/sample-page',
  manuAdministrationIdentityUsers: '/manu/(administration)/identity/users',
  manuDashboardAnalytics: '/manu/dashboard/analytics',
  manuDashboardDefault: '/manu/dashboard/default',
  manuSamplePage: '/manu/sample-page',
  pages500: '/pages/500',
  pagesComingSoon: '/pages/coming-soon',
  pagesLanding: '/pages/landing',
  pagesUnderConstruction: '/pages/under-construction',
  whUsersAdministrationIdentityUsers: '/wh-users/(administration)/identity/users',
  whUsersDashboardAnalytics: '/wh-users/dashboard/analytics',
  whUsersDashboardDefault: '/wh-users/dashboard/default',
  whUsersSamplePage: '/wh-users/sample-page',
};