dotnet add package Google.Cloud.Translation.V2

using System;
using Google.Cloud.Translation.V2;

namespace GoogleTranslateDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            // Point the SDK at your service account key file
            // For production, set this at the OS level instead
            Environment.SetEnvironmentVariable(
                "GOOGLE_APPLICATION_CREDENTIALS",
                "path-to-your-json-key-file.json"
            );

            TranslationClient client = TranslationClient.Create();

            string text = "Hello, how are you today?";

            // Detect the source language
            var detection = client.DetectLanguage(text);
            Console.WriteLine(
                $"Detected Language: {detection.Language} " +
                $"(Confidence: {detection.Confidence:P})"
            );

            // Translate to Spanish
            var translation = client.TranslateText(text, "es");
            Console.WriteLine($"\nTranslated to Spanish: {translation.TranslatedText}");

            // Translate back to English, specifying source language explicitly
            var translatedBack = client.TranslateText(
                translation.TranslatedText, "en", "es"
            );
            Console.WriteLine($"\nTranslated Back to English: {translatedBack.TranslatedText}");
        }
    }
}