v1 – Update app-next with new UI

TEAM_REPORT.md

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+# OpenML Search Implementation - Team Report
+
+**Date:** November 16, 2025  
+**Status:** ✅ Completed
+
+---
+
+## Summary
+
+Successfully migrated OpenML search functionality from old routes to new SEO-friendly URLs with direct Elasticsearch integration, bypassing the problematic API proxy layer.
+
+---
+
+## What Changed
+
+### 1. New SEO-Friendly Routes
+
+All search pages now use clean, SEO-optimized URLs:
+
+| Old URL     | New URL     | Status  |
+| ----------- | ----------- | ------- |
+| `/d/search` | `/datasets` | ✅ Live |
+| `/t/search` | `/tasks`    | ✅ Live |
+| `/f/search` | `/flows`    | ✅ Live |
+| `/r/search` | `/runs`     | ✅ Live |
+
+**Benefits:**
+
+-   Better Google indexing
+-   Cleaner URLs for sharing
+-   Improved user experience
+-   All old URLs automatically redirect (no broken links)
+
+---
+
+### 2. Custom Elasticsearch Connector
+
+**Problem:** The `@elastic/search-ui-elasticsearch-connector` library was returning HTML error pages instead of JSON responses.
+
+**Solution:** Created `OpenMLSearchConnector.js` that directly queries Elasticsearch 6.8.23 at `https://www.openml.org/es/`
+
+**Key Features:**
+
+-   Direct fetch() API calls to Elasticsearch
+-   Handles search terms, filters, pagination, sorting, and facets
+-   Wraps results in Search UI's expected `{ raw: value }` format
+-   Strips invalid `name` fields from range aggregations
+-   Compatible with ES 6.8.23 query format
+
+**Files Updated:**
+
+-   `app/src/services/OpenMLSearchConnector.js` (new)
+-   `app/src/search_configs/dataConfig.js`
+-   `app/src/search_configs/taskConfig.js`
+-   `app/src/search_configs/flowConfig.js`
+-   `app/src/search_configs/runConfig.js`
+
+---
+
+### 3. Bug Fixes
+
+| Issue                                   | Fix                                                                | File                               |
+| --------------------------------------- | ------------------------------------------------------------------ | ---------------------------------- |
+| Elasticsearch 400 error on range facets | Removed `name` field from range aggregations                       | `OpenMLSearchConnector.js`         |
+| Sort not working                        | Added `sortList` array handling instead of individual fields       | `OpenMLSearchConnector.js`         |
+| Missing values sort error               | Fixed typo: `"NumberOfMissing values"` → `"NumberOfMissingValues"` | `datasets.js`                      |
+| Description font size not applying      | Changed `fontSize: "12px"` to `fontSize: "inherit"`                | `Teaser.js`                        |
+| Grid responsive layout                  | Set xs=12, sm=6, md=4 for proper column display                    | `ResultGridCard.js`                |
+| Container width constraints             | Set width: 100% with 24px horizontal margins                       | `Wrapper.js`, `SearchContainer.js` |
+
+---
+
+### 4. Architecture Changes
+
+**Before:**
+
+```
+Browser → Next.js → SearchAPIConnector → API Proxy → Elasticsearch
+```
+
+**After:**
+
+```
+Browser → Next.js → OpenMLSearchConnector → Elasticsearch (direct)
+```
+
+**Benefits:**
+
+-   One less failure point
+-   Faster queries (no proxy overhead)
+-   Easier debugging with direct ES error messages
+-   No dependency on Flask backend for read operations
+
+---
+
+## Testing Results
+
+✅ **Datasets:** 24,498 results, search/filter/sort working  
+✅ **Tasks:** Search and filters functional  
+✅ **Flows:** Search and filters functional  
+✅ **Runs:** Search and filters functional
+
+**Elasticsearch Status:**
+
+-   Cluster: `openmlelasticsearch`
+-   Version: 6.8.23
+-   Endpoint: `https://www.openml.org/es/`
+
+---
+
+## Files Created/Modified
+
+### New Files
+
+-   `app/src/pages/datasets.js`
+-   `app/src/pages/tasks.js`
+-   `app/src/pages/flows.js`
+-   `app/src/pages/runs.js`
+-   `app/src/services/OpenMLSearchConnector.js`
+-   `app/src/components/search/DatasetSearchResults.jsx`
+
+### Modified Files
+
+-   `app/src/pages/d/search.js` (now redirects)
+-   `app/src/pages/t/search.js` (now redirects)
+-   `app/src/pages/f/search.js` (now redirects)
+-   `app/src/pages/r/search.js` (now redirects)
+-   All config files in `app/src/search_configs/`
+-   `app/src/components/search/SearchContainer.js`
+-   `app/src/components/search/Teaser.js`
+-   `app/src/components/Wrapper.js`
+-   `app/src/components/search/ResultGridCard.js`
+
+---
+
+## Known Issues
+
+None at this time. All major functionality working as expected.
+
+---
+
+## Next Steps (Optional)
+
+1. **Performance:** Consider adding request caching
+2. **Analytics:** Add tracking for search queries
+3. **UI:** Remove debug console.log statements (currently helpful for monitoring)
+4. **Tests:** Add unit tests for OpenMLSearchConnector
+5. **Documentation:** Update API documentation to reflect new routes
+
+---
+
+## Technical Notes
+
+-   **No Docker Required:** Frontend connects directly to production Elasticsearch
+-   **No Flask Backend Needed:** For read-only search operations
+-   **Backwards Compatible:** All old URLs redirect automatically
+-   **SEO Optimized:** Each page has proper meta tags, Open Graph tags, and canonical URLs
+
+---
+
+## Contact
+
+For questions or issues, check:
+
+-   Browser console logs (prefixed with `[OpenMLSearchConnector]`)
+-   Network tab for Elasticsearch requests to `https://www.openml.org/es/`
+-   Server terminal for Next.js errors

app-next/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

app-next/.prettierrc

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+{
+  "plugins": ["prettier-plugin-tailwindcss"]
+}

app-next/README.md

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+This is a [Next.js](https://nextjs.org) project bootstrapped with [`create-next-app`](https://nextjs.org/docs/app/api-reference/cli/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
+
+This project uses [`next/font`](https://nextjs.org/docs/app/building-your-application/optimizing/fonts) to automatically optimize and load [Geist](https://vercel.com/font), a new font family for Vercel.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/app/building-your-application/deploying) for more details.

app-next/components.json

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+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/app/globals.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "iconLibrary": "lucide",
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "registries": {}
+}

app-next/eslint.config.mjs

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+import { defineConfig, globalIgnores } from "eslint/config";
+import nextVitals from "eslint-config-next/core-web-vitals";
+import nextTs from "eslint-config-next/typescript";
+
+const eslintConfig = defineConfig([
+  ...nextVitals,
+  ...nextTs,
+  // Override default ignores of eslint-config-next.
+  globalIgnores([
+    // Default ignores of eslint-config-next:
+    ".next/**",
+    "out/**",
+    "build/**",
+    "next-env.d.ts",
+  ]),
+]);
+
+export default eslintConfig;

app-next/next.config.ts

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+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+};
+
+export default nextConfig;