# UtilityTools

## Overview

`UtilityTools` provide a simple set of general helper functions, such as `get_current_date_time` and `get_user_location`.

This is the prompt:

```ini
#
# UtilityTools
#
[UtilityTools]
Provides generally useful tools.

[UtilityTools.get_current_date_time]
Returns the current date and time

[UtilityTools.get_user_location]
Returns the user current location
```

The `get_user_location` tool is particularly interesting because it utilizes the geolocation extension from Wisej.NET, enabling the browser to access the PC's location services. The implementation looks like this:

```csharp
[SmartTool.Tool]
[Description("[UtilityTools.get_user_location]")]
protected virtual async Task<string> get_user_location()
{
	_geolocation = _geolocation ?? new Geolocation();

	var tcs = new TaskCompletionSource<string>();
	_geolocation.GetCurrentPosition((position) =>
	{
		tcs.SetResult(position.ToString());
	});

	Application.Update(Application.Current);
	return await tcs.Task;
}
```

Notice that it employs the `TaskCompletionSource` technique to convert a callback into a `Task`. This is necessary because the browser's location services support only callbacks.

## Using UtilityTools

To enable the use of UtilityTools, simply add it to a SmartHub, SmartAdapter, or SmartPrompt.

```csharp
this.hub1.UseTools(new UtilityTools());
this.smartDataEntryAdapter1.UseTools(new UtilityTools());

Console.WriteLine(
    new SmartPrompt()
        .UseTools(new UtilityTools())
        .AskAsync(endpoint, "Where am I?")
        .Result.Text);
```


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