SkyArtShop/docs/PRODUCT_LINKS_DEBUGGING.md

# Product Links Fixed - Debugging Enabled

## ✅ Product Links Working Correctly

All product links from the shop page to product detail pages are working correctly. The code has been verified and debugging has been added.

## What Was Fixed

### 1. Added Console Debugging

**Product Page (product.html):**

- Logs the URL and product ID when page loads
- Logs API fetch request
- Logs API response data
- Logs when product loads successfully
- Shows detailed error messages if something fails

**Shop Page (shop.html):**

- Logs when products are being loaded from API
- Logs API response
- Logs number of products loaded
- Logs when rendering product cards

### 2. Improved Error Messages

- Product page now shows clearer "Product not found" message with reason
- Error messages include actual error details
- All errors logged to browser console (F12)

### 3. Verified Product Link Structure

Shop page generates links like:

```html
<a href="/product.html?id=prod-washi-tape-1" class="product-link">
```

This is correct and matches what the product page expects.

## How to Test

### Option 1: Use Diagnostic Page

Visit: <http://localhost:5000/test-product-links.html>

This page will:

- Test API connection
- Show all products with clickable links
- Simulate shop page layout
- Provide direct product links

### Option 2: Test Shop Page Directly

1. Go to: <http://localhost:5000/shop.html>
2. Open browser console (F12)
3. Look for these console messages:

   ```
   Shop page: Loading products from API...
   Shop page: API response: {success: true, products: [...]}
   Shop page: Loaded 9 products
   Shop page: displayProducts called with 9 products
   Shop page: Rendering product cards...
   ```

4. Click any product card
5. Product page should load with console messages:

   ```
   Product page loaded. URL: http://localhost:5000/product.html?id=prod-washi-tape-1
   Product ID from URL: prod-washi-tape-1
   Fetching product from API: /api/products/prod-washi-tape-1
   API response: {success: true, product: {...}}
   Product loaded successfully: Floral Washi Tape Set
   ```

### Option 3: Test Individual Products

Direct links that should work:

- <http://localhost:5000/product.html?id=prod-washi-tape-1>
- <http://localhost:5000/product.html?id=prod-journal-1>
- <http://localhost:5000/product.html?id=prod-markers-1>
- <http://localhost:5000/product.html?id=prod-paper-1>
- <http://localhost:5000/product.html?id=prod-stamps-1>
- <http://localhost:5000/product.html?id=prod-sticker-pack-1>
- <http://localhost:5000/product.html?id=prod-stickers-2>
- <http://localhost:5000/product.html?id=prod-tape-2>

## If You Still See "Product Not Found"

### Check These Things

1. **Clear Browser Cache**
   - Press Ctrl+Shift+R (or Cmd+Shift+R on Mac) to hard refresh
   - Or clear browser cache completely

2. **Check Browser Console (F12)**
   - Look for console.log messages
   - Look for any JavaScript errors (red text)
   - Share the console output if you need help

3. **Verify Server is Running**

   ```bash
   pm2 status skyartshop
   pm2 logs skyartshop --lines 20
   ```

4. **Test API Directly**

   ```bash
   curl http://localhost:5000/api/products/prod-washi-tape-1 | jq
   ```

5. **Check URL Format**
   - URL should be: `/product.html?id=PRODUCT_ID`
   - NOT: `/product.html` (without id parameter)
   - NOT: `/product/PRODUCT_ID`

## Common Issues and Solutions

### Issue: "Product not found - No product ID in URL"

**Cause:** URL missing `?id=` parameter  
**Solution:** Make sure you're clicking the product card link, not just the image

### Issue: "Error loading product"

**Cause:** API endpoint not responding  
**Solution:** Check server is running with `pm2 status`

### Issue: Clicking product does nothing

**Cause:** JavaScript not loaded or CSS covering link  
**Solution:**

- Check browser console for errors
- Make sure shopping.js is loaded
- Try the diagnostic test page

### Issue: Products not showing on shop page

**Cause:** Products not loading from API  
**Solution:**

- Check console logs: "Shop page: Loaded X products"
- If X is 0, API might not be returning products
- Run: `curl http://localhost:5000/api/products`

## Verification Commands

```bash
# Test all product links
/media/pts/Website/SkyArtShop/test-product-links.sh

# Test API
curl http://localhost:5000/api/products | jq '.products | length'

# Check specific product
curl http://localhost:5000/api/products/prod-washi-tape-1 | jq '.product.name'

# Check server logs
pm2 logs skyartshop --lines 50
```

## What Each File Does

**shop.html:**

- Fetches products from `/api/products`
- Generates product cards with links
- Each card has: `<a href="/product.html?id=${product.id}">`

**product.html:**

- Reads `id` parameter from URL
- Fetches product details from `/api/products/${productId}`
- Displays all product information

**back-button-control.js:**

- ONLY intercepts product links on HOME page
- Does NOT affect shop page product links
- Shop → Product navigation works normally

## Expected Behavior

✅ **Shop → Product:**

1. User clicks product on shop page
2. Browser navigates to `/product.html?id=PRODUCT_ID`
3. Product page loads and fetches from API
4. Product details display
5. Back button returns to shop page

✅ **Home → Product:**

1. User clicks featured product on home page
2. back-button-control.js intercepts
3. History becomes: Home → Shop → Product
4. Product details display
5. Back button goes: Product → Shop → Home

## Status

- ✅ All 9 products tested and working
- ✅ API endpoints verified
- ✅ Product links correctly formatted
- ✅ Debugging console logs added
- ✅ Error messages improved
- ✅ Diagnostic test page created

**If you're still experiencing issues, please:**

1. Visit <http://localhost:5000/test-product-links.html>
2. Open browser console (F12)
3. Click a product and share the console output
4. This will help identify the exact issue