CurrentTimeTool.cs

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using System.Text.Json;

namespace Lilith.Core.Tools;

public sealed class CurrentTimeTool : ILilithTool
{
    public string Name => "get_current_time";
    public string Description => "Get the current date and time on this computer, including its time zone and UTC time.";
    public JsonElement Parameters => JsonSerializer.SerializeToElement(new
    {
        type = "object", properties = new { }, additionalProperties = false
    });

    public Task<string> ExecuteAsync(JsonElement arguments, CancellationToken cancellationToken = default)
    {
        cancellationToken.ThrowIfCancellationRequested();
        if (arguments.ValueKind != JsonValueKind.Object || arguments.EnumerateObject().Any())
            throw new ArgumentException("get_current_time expects an empty argument object.");
        var now = DateTimeOffset.UtcNow;
        return Task.FromResult(JsonSerializer.Serialize(new
        {
            local_time = TimeZoneInfo.ConvertTime(now, TimeZoneInfo.Local).ToString("O"),
            utc_time = now.ToString("O"), time_zone = TimeZoneInfo.Local.Id
        }));
    }
}