# Customer Settings 404 Error - Troubleshooting Guide

## Issue
The `/store/customer-settings` endpoint returns 404 error.

## Verification Steps

### 1. Check if routes are registered
The routes ARE correctly registered in `includes/Api/StoreController.php`:
- Line 90-97: GET `/woonoow/v1/store/customer-settings`
- Line 99-106: POST `/woonoow/v1/store/customer-settings`

### 2. Check if controller is initialized
The controller IS initialized in `includes/Api/Routes.php`:
- Line 56-57: `new StoreController()` and `register_routes()`

### 3. Check if class exists
The `CustomerSettingsProvider` class EXISTS in:
- `includes/Compat/CustomerSettingsProvider.php`
- Namespace: `WooNooW\Compat`

## Possible Causes & Solutions

### Solution 1: Flush WordPress Permalinks
WordPress may need to rebuild its rewrite rules.

**Via WP-Admin:**
1. Go to Settings → Permalinks
2. Click "Save Changes" (no need to change anything)

**Via WP-CLI:**
```bash
wp rewrite flush
```

### Solution 2: Check Debug Logs
Debug logging has been added to track the issue:

**Enable WordPress Debug:**
Add to `wp-config.php`:
```php
define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);
define('WP_DEBUG_DISPLAY', false);
```

**Check logs:**
```bash
tail -f wp-content/debug.log
```

Look for:
- `WooNooW: get_customer_settings called`
- `WooNooW: Customer settings retrieved: ...`
- `WooNooW: get_customer_settings exception: ...`

### Solution 3: Test Endpoint Directly
Open browser console and run:
```javascript
fetch(window.WNW_CONFIG.restUrl + '/store/customer-settings', {
  headers: {
    'X-WP-Nonce': window.wpApiSettings.nonce
  }
})
.then(r => r.json())
.then(console.log)
.catch(console.error);
```

### Solution 4: Verify REST API is Working
Test a known endpoint:
```javascript
fetch(window.WNW_CONFIG.restUrl + '/store/branding')
.then(r => r.json())
.then(console.log);
```

If this fails, the REST API itself may be broken.

### Solution 5: Check .htaccess
Ensure `.htaccess` has WordPress rewrite rules:
```apache
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress
```

## Expected Behavior

**GET Request:**
```json
{
  "vip_min_spent": 1000,
  "vip_min_orders": 10,
  "vip_timeframe": "all",
  "vip_require_both": true,
  "vip_exclude_refunded": true
}
```

**POST Request:**
```json
{
  "success": true,
  "message": "Customer settings updated successfully",
  "settings": { ... }
}
```

## Quick Fix Checklist
- [ ] Flush permalinks
- [ ] Enable debug logging
- [ ] Check debug.log for errors
- [ ] Test endpoint in browser console
- [ ] Verify other REST endpoints work
- [ ] Check .htaccess file
- [ ] Clear all caches (browser, WordPress, server)

## Still Not Working?
If none of the above works, there may be:
1. Plugin conflict (disable other plugins temporarily)
2. Theme conflict (switch to default theme temporarily)
3. Server configuration issue (check with hosting provider)
4. WordPress REST API disabled by security plugin