# Testing Scenarios

## Current Status

The code is working! It correctly detects when no Bluetooth printer is configured and attempts to fall back to standard print.

## Enhanced Logging

Added comprehensive logging to track:
1. When `originalPrintHtml` is called
2. What it returns
3. Any errors that occur
4. Connection status checks
5. Reconnection attempts

## Test Scenarios

### Scenario 1: No Bluetooth Printer Configured ✅
**Current behavior:**
```
[BluetoothPrint] printHtml() called
[BluetoothPrint] Web Bluetooth API available
[BluetoothPrint] No Bluetooth printer configured, using standard print
[BluetoothPrint] Calling originalPrintHtml with: [element]
[BluetoothPrint] originalPrintHtml returned: [result]
```

**Expected:** Browser print dialog should open
**If not working:** Check the console for errors from `originalPrintHtml`

### Scenario 2: Bluetooth Printer Configured but Not Connected
**Steps:**
1. Connect to printer once (saves config)
2. Disconnect printer or turn it off
3. Try to print receipt

**Expected logs:**
```
[BluetoothPrint] Bluetooth printer configured: RPP02N
[BluetoothPrint] Current connection status: disconnected
[BluetoothPrint] Printer not connected, attempting to reconnect...
[BluetoothPrint] Reconnection failed: [error]
[BluetoothPrint] Falling back to standard print
```

**Expected:** Browser print dialog should open

### Scenario 3: Bluetooth Printer Connected ✅
**Steps:**
1. Click Bluetooth icon
2. Connect to RPP02N
3. Make a sale and print

**Expected logs:**
```
[BluetoothPrint] Bluetooth printer configured: RPP02N
[BluetoothPrint] Current connection status: connected
[BluetoothPrint] Attempting bluetooth print...
[BluetoothPrint] Starting bluetooth print from HTML...
[BluetoothPrint] Parsing receipt data from HTML...
[BluetoothPrint] Parsed X lines from HTML
[BluetoothPrint] Generating ESC/POS commands...
[BluetoothPrint] Generated XXX bytes of ESC/POS data
[BluetoothPrint] Sending to printer...
[BluetoothPrint] Print completed successfully
```

**Expected:** Receipt prints to Bluetooth printer

### Scenario 4: Bluetooth Print Fails Mid-Process
**What happens:** Connection drops during print

**Expected logs:**
```
[BluetoothPrint] Attempting bluetooth print...
[BluetoothPrint] Bluetooth print failed: [error]
[BluetoothPrint] Falling back to standard print after error
[BluetoothPrint] Fallback print returned: [result]
```

**Expected:** Browser print dialog opens as fallback

## What to Test Now

### Test 1: Connect Bluetooth Printer
1. Update module: `./odoo-bin -u pos_bluetooth_thermal_printer -d your_database`
2. Clear browser cache
3. Click Bluetooth icon in POS
4. Scan and connect to RPP02N
5. Make a sale and print receipt
6. **Check console logs**
7. **Verify receipt prints to Bluetooth printer**

### Test 2: Standard Print Fallback
1. Disconnect Bluetooth printer (turn off or unpair)
2. Make a sale and print receipt
3. **Check console logs** - should show reconnection attempt
4. **Verify browser print dialog opens**

## Debugging Standard Print Issue

If standard print (browser dialog) doesn't open, check:

### 1. Check Console for Errors
Look for:
```
[BluetoothPrint] Error calling originalPrintHtml: [error]
[BluetoothPrint] Standard print failed: [error]
[BluetoothPrint] Fallback print also failed: [error]
```

### 2. Check originalPrintHtml Return Value
Look for:
```
[BluetoothPrint] originalPrintHtml returned: [value]
```

If it returns `undefined` or `null`, the original method might not be opening the print dialog.

### 3. Possible Issues

**Issue A: Original method doesn't exist**
- `originalPrintHtml` might be `undefined`
- Check if `PosPrinterService.prototype.printHtml` exists before patching

**Issue B: Original method needs different context**
- Might need to pass additional parameters
- Might need different `this` binding

**Issue C: Browser blocks print dialog**
- Some browsers block print dialogs not triggered by user action
- Might need user interaction first

### 4. Alternative Fallback

If `originalPrintHtml` doesn't work, we can implement a direct print fallback:

```javascript
// Direct browser print as last resort
const printWindow = window.open('', '_blank');
printWindow.document.write(el.outerHTML);
printWindow.document.close();
printWindow.print();
```

## Expected Results After Update

### With Bluetooth Printer Connected:
✅ Receipt prints to Bluetooth printer automatically
✅ No browser print dialog
✅ Console shows successful print process

### Without Bluetooth Printer:
✅ Console shows "No Bluetooth printer configured"
✅ Falls back to standard print
✅ Browser print dialog opens (or should open)

### With Bluetooth Error:
✅ Console shows error details
✅ Falls back to standard print
✅ Sale completes successfully

## Next Steps

1. **Update module**
2. **Test with Bluetooth printer connected** - Should print!
3. **Test without Bluetooth printer** - Check if standard print works
4. **Share console logs** if any issues

The Bluetooth printing should work now when printer is connected! 🎉