using Google.Apis.Auth.OAuth2;
using Google.Apis.Gmail.v1;
using Google.Apis.Services;
using Google.Apis.Util.Store;

namespace GmailArneMoermanSorter
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Access emails over Gmail Api");
            try
            {
                new Program().Run().Wait();
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
        }

        private async Task Run()
        {
            UserCredential credential;
            using (var stream = new FileStream("clientSecret.json", FileMode.Open, FileAccess.Read))
            {
                credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
                    GoogleClientSecrets.FromStream(stream).Secrets,
                    new[] {GmailService.Scope.GmailLabels},
                    "user", CancellationToken.None, new FileDataStore("GmailApi.Auth.Store"));
            }

            var service = new GmailService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = "GmailArneMoermanSorter"
            });

            var labels = await service.Users.Labels.List("me").ExecuteAsync();
            foreach (var label in labels.Labels)
            {
                Console.WriteLine(label.Name);
            }
        }
    }
}