Search

import { Hono } from "npm:hono@4.4.8";
import { streamSSE } from "npm:hono@4.4.8/streaming";
import { createOpenAI } from "npm:@ai-sdk/openai@latest";
import { createAnthropic } from "npm:@ai-sdk/anthropic@latest";
import { createGoogleGenerativeAI } from "npm:@ai-sdk/google@latest";
  // Default columns to show on load (provider and model pairs)
  defaultColumns: [
    { provider: "openai", model: "gpt-5.2" },
    { provider: "anthropic", model: "claude-opus-4-5-20251101" },
    { provider: "google", model: "gemini-3-pro-preview" },
// Provider configurations
const providers = {
  openai: () => createOpenAI({ apiKey: Deno.env.get("OPENAI_API_KEY") || "" }),
  anthropic: () =>
    createAnthropic({ apiKey: Deno.env.get("ANTHROPIC_API_KEY") || "" }),
  { id: string; name: string; icon: string }[]
> = {
  openai: [
    { id: "gpt-5.2", name: "GPT-5.2", icon: "🚀" },
    { id: "o3", name: "o3 (Reasoning)", icon: "🧠" },
  }
> = {
  openai: {
    name: "OpenAI",
    color: "#10a37f",
    gradient: "from-emerald-400 via-teal-500 to-cyan-600",
      opacity: 0.8;
    }
    .accent-line.openai { background: linear-gradient(90deg, transparent, #10a37f, transparent); }
    .accent-line.anthropic { background: linear-gradient(90deg, transparent, #f97316, transparent); }
    .accent-line.google { background: linear-gradient(90deg, transparent, #6366f1, transparent); }
    }
    
    function createColumn(defaultProvider = 'openai', defaultModel = 'gpt-4o') {
      const id = columnId++;
      const column = {
                    class="select-modern w-full bg-zinc-800/80 border border-zinc-700/50 rounded-lg px-2.5 py-2 text-sm text-white cursor-pointer"
                  >
                    <option value="openai" \${defaultProvider === 'openai' ? 'selected' : ''}>OpenAI</option>
                    <option value="anthropic" \${defaultProvider === 'anthropic' ? 'selected' : ''}>Anthropic</option>
                    <option value="google" \${defaultProvider === 'google' ? 'selected' : ''}>Google</option>
      // Update card class
      const columnEl = document.getElementById(\`column-\${id}\`);
      columnEl.classList.remove('openai', 'anthropic', 'google');
      columnEl.classList.add(provider);
      
      // Update accent line
      const accentLine = columnEl.querySelector('.accent-line');
      accentLine.classList.remove('openai', 'anthropic', 'google');
      accentLine.classList.add(provider);
      
    
    function addColumn() {
      const providers = ['openai', 'anthropic', 'google'];
      const existingProviders = Array.from(columns.values()).map(c => c.provider);
      let newProvider = providers.find(p => !existingProviders.includes(p)) || providers[columns.size % 3];
      switch (provider) {
        case "openai":
          aiModel = providers.openai()(model);
          break;
        case "anthropic":

// Val Town stdlib
import { sqlite } from "https://esm.town/v/std/sqlite";
import { OpenAI } from "https://esm.town/v/std/openai";
import {
  listFiles,
├── backend/
│   ├── database.ts        # SQLite schema & queries (user-scoped)
│   ├── ai.ts              # OpenAI tag generation
│   └── youtube.ts         # YouTube Data API v3 calls
├── frontend/
- Save YouTube URLs (paste, drag-drop, or input)
- Automatic video metadata fetching (title, channel, thumbnail)
- AI-powered auto-tagging (category, subcategory, tags) using OpenAI
- Edit video details (title, category, subcategory, tags, rating, watched
  status)

1. fix: `TypeError
TypeError: Class constructor OpenAI cannot be invoked without 'new'
    at https://esm.town/v/arfan/yt_drop_v2@33-main/backend/ai.ts:7:16` 
### Planner Response
I can see the issue! At line 7, you're calling `OpenAI()` without the `new` keyword. The error message indicates this is a class constructor that needs to be instantiated with `new`. Let me check the Val Town OpenAI documentation to see the correct usage:
*Searched web for Val Town std openai usage example*
### Planner Response
Let me get more details on the actual implementation:
*Read URL content from /v/std/openai *
*Viewed content chunk*
### Planner Response
Perfect! I found the issue. According to the Val Town documentation, you need to use `new OpenAI()` instead of just `OpenAI()`. The fix is simple:
*Edited relevant file*
## ✅ Fixed!
The issue was on **line 7** where you were calling `OpenAI()` without the `new` keyword. The `OpenAI` export from Val Town's `std/openai` module is a class constructor that must be instantiated with `new`.
**What I changed:**
```diff
- const openai = OpenAI();
+ const openai = new OpenAI();
```
This is the correct way to use Val Town's OpenAI wrapper, as shown in their [official documentation](https://www.val.town/v/std/openai). The error occurred because class constructors in JavaScript/TypeScript must be invoked with the `new` keyword.
*User accepted the command `vt push && for i in {2..1}; do echo -ne "\rWaiting: $i seconds..."; sleep 1; done; echo -ne "\rDone!                \n" && vt push`*
## ✅ Fixed: File System Error
I've resolved the `TypeError: Class constructor OpenAI cannot be invoked without 'new'` error and the file system error. Here's what I did:
### Changes Made:
1. **Fixed OpenAI instantiation** ([backend/ai.ts](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/backend/ai.ts:0:0-0:0)):
   - Changed `const openai = OpenAI();` to `const openai = new OpenAI();`
2. **Fixed file serving** ([app.http.ts](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/app.http.ts:0:0-0:0)):
The error in the logs was `Error: Invalid ESM Town URL format: ./frontend/index.html` because I used a relative path [./frontend/index.html](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/frontend/index.html:0:0-0:0) instead of the absolute-style path [/frontend/index.html](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/frontend/index.html:0:0-0:0) (with leading slash) and I missed the `import.meta.url` argument.
Also, [AGENTS.md](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/AGENTS.md:0:0-0:0) confirms `new OpenAI()` is the correct way (line 100).
Let's fix [app.http.ts](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/app.http.ts:0:0-0:0) first. I'll revert to using `readFile` for the root route because it allows us to inject data (though I previously removed it, the user might want it back later, or at least it's the recommended pattern in [AGENTS.md](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/AGENTS.md:0:0-0:0)). However, to keep it simple and fix the current error, I'll use the patterns from [AGENTS.md](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/AGENTS.md:0:0-0:0).
I will update the prompt to include:
- `new OpenAI()`
- Correct `serveFile` and `readFile` usage.
- The `/api/user` endpoint pattern instead of `window.__HYDRATED_EMAIL__` if we want to avoid injection, OR update the injection logic to work with `readFile`.
### Key Updates to the Prompt:
1.  **OpenAI**: Explicitly specify the use of `new OpenAI()` to avoid constructor errors.
2.  **File Serving**: Updated all `serveFile` and `readFile` examples to use the correct signature with `import.meta.url` and absolute-style paths.
3.  **Hono Context**: Added proper TypeScript generic types for Hono variables (`new Hono<{ Variables: Variables }>()`) to ensure `c.set/c.get` are type-safe.
### Summary of Fixes:
1.  **OpenAI Constructor Fix**: Resolved the `TypeError` by properly instantiating the OpenAI client with `new OpenAI()` in [backend/ai.ts](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/backend/ai.ts:0:0-0:0).
2.  **File System & Serving Fix**: Resolved the "No such file or directory" and "Invalid ESM Town URL" errors in [app.http.ts](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/app.http.ts:0:0-0:0) by:
    *   Using the correct Val Town utility patterns: `serveFile(c.req.path, import.meta.url)` and `readFile("/frontend/index.html", import.meta.url)`.
I've significantly updated [_docs/SONNET_4.5_PROMPT.md](cci:7://file:///Users/clock2/Developer/vt/yt_drop_v2/_docs/SONNET_4.5_PROMPT.md:0:0-0:0) to "count for the issues fixed in this chat." The prompt now includes:
*   The correct **OpenAI constructor** syntax.
*   **Best practices for file serving** using `import.meta.url`.
*   A **modern authentication pattern** that uses a separate API endpoint for user info, making the architecture cleaner and less prone to file-system-related injection errors.

#### [NEW] [ai.ts](file:///Users/clock2/Developer/vt/yt_drop_v2/backend/ai.ts)
OpenAI-powered tag generation:
- `generateTags()` - Analyzes video title/description to suggest category,
  subcategory, and tags
- Uses Val Town's OpenAI integration
- Structured JSON response parsing

  YouTube Data API v3 integration with oEmbed fallback
- **[ai.ts](file:///Users/clock2/Developer/vt/yt_drop_v2/backend/ai.ts)** -
  OpenAI-powered tag generation
### Main Application
### ✅ AI-Powered Features
- OpenAI GPT-4o-mini integration
- Automatic category, subcategory, and tag generation
- Manual tag regeneration via edit modal
- LastLogin automatically handles OAuth - no manual configuration needed
- YouTube API has daily quota limits (check Google Cloud Console)
- OpenAI calls use Val Town's standard OpenAI integration
- All data is stored in Val Town's SQLite database (persistent)

// AI-powered tag generation using OpenAI
import { OpenAI } from "https://esm.town/v/std/openai";
import type { AITagsResponse } from "../shared/types.ts";
import { DEFAULT_CATEGORIES } from "../shared/constants.ts";
const openai = new OpenAI();
/**
}`;
    const response = await openai.chat.completions.create({
      model: "gpt-4o-mini",
      messages: [

Note: When changing a SQLite table's schema, change the table's name (e.g., add _2 or _3) to create a fresh table.
### OpenAI
```ts
import { OpenAI } from "https://esm.town/v/std/openai";
const openai = new OpenAI();
const completion = await openai.chat.completions.create({
  messages: [
    { role: "user", content: "Say hello in a creative way" },

Note: When changing a SQLite table's schema, change the table's name (e.g., add _2 or _3) to create a fresh table.
### OpenAI
```ts
import { OpenAI } from "https://esm.town/v/std/openai";
const openai = new OpenAI();
const completion = await openai.chat.completions.create({
  messages: [
    { role: "user", content: "Say hello in a creative way" },

Note: When changing a SQLite table's schema, change the table's name (e.g., add _2 or _3) to create a fresh table.
### OpenAI
```ts
import { OpenAI } from "https://esm.town/v/std/openai";
const openai = new OpenAI();
const completion = await openai.chat.completions.create({
  messages: [
    { role: "user", content: "Say hello in a creative way" },

import { readFile } from "https://esm.town/v/std/utils/index.ts";
import { Agent, run, webSearchTool } from "npm:@openai/agents@0.3.0";
import { storeLead } from "./db.ts";
  const d = inputData.data || inputData;
  
  if (!Deno.env.get("OPENAI_API_KEY")) {
    const outputData = {
      ...Object.fromEntries(PASSTHROUGH_KEYS.map(k => [k, d[k] ?? ""])),
      match: null,
      reasoning: "Set OPENAI_API_KEY environment variable to enable AI research",
    };
    await storeLead(inputData, outputData);