// Load encrypted bot token from storage.
ProtectedString token = LoadEncryptedBotToken();

// Create a TeamsAPIClient instance with retry option.
var teams = TeamsAPI.CreateVersion1Client(token, new TeamsRetryHandler(4));

// Build markdown.
var markdown = new MarkdownBuilder();
markdown.Append("Hi, ").AppendBold("Webex Teams").Append("!!");

// Post a message.
var message = (await teams.CreateDirectMessageAsync("your_webex_teams_account@example.com", markdown.ToString())).GetData();

Console.WriteLine("Message was posted: ID = {0}", message.Id);

// Create From Json String.
var card = AdaptiveCardAttachment.FromJsonString(
@"
    {
        ""type"": ""AdaptiveCard"",
        ""version"": ""1.0"",
        ""body"": [
        {
            ""type"": ""TextBlock"",
            ""text"": ""Adaptive Cards"",
            ""size"": ""large""
        }
        ],
        ""actions"": [
        {
            ""type"": ""Action.OpenUrl"",
            ""url"": ""http://adaptivecards.io"",
            ""title"": ""Learn More""
        }
        ]
    }
");

// Post a message with card.
var message = (await teams.CreateDirectMessageAsync("your_webex_teams_account@example.com",
    "[Learn More](http://adaptivecards.io) about Adaptive Card.",
    card)).GetData();

Console.WriteLine("Message was posted: ID = {0}", message.Id);


// Also, you can create from Anonymous type or class instance.
var cardObj = new
{
    type    = "AdaptiveCard",
    version = "1.0",
    body    = new []
    {
        new
        {
            type = "TextBlock",
            text = "Adaptive Cards",
            size = "large",
        }
    },
    actions = new []
    {
        new
        {
            type  = "Action.OpenUrl",
            url   = "http://adaptivecards.io",
            title = "Learn More"
        }
    },
};

card = AdaptiveCardAttachment.FromObject(cardObj);

// Post a message with card.
message = (await teams.CreateDirectMessageAsync("your_webex_teams_account@example.com",
    "[Learn More](http://adaptivecards.io) about Adaptive Card.",
    card)).GetData();

Console.WriteLine("Message was posted: ID = {0}", message.Id);

// You can use teams.GetAttachmentActionAsync() to get action from users.
// Webhook listner, event handler in this APIClient has capablities to get these actions.

// Load encrypted Guest Issuer secret from storage.
ProtectedString secret = LoadEncryptedGuestIssuerSecret();

// Create a GuestIssuerClient instance.
var guestIssuer = TeamsAPI.CreateVersion1GuestIssuerClient(secret, "your_guest_issuer_id");


// Create a Guest User.
var guest = (await guestIssuer.CreateGuestUserAsync("my-guest-id", "GuestUserName")).GetData();

// Create a TeamsAPIClient instance for the Guest User with retry option.
var teams = TeamsAPI.CreateVersion1Client(guest, new TeamsRetryHandler(4));

// Post a message from the Guest User.
var message = (await teams.CreateDirectMessageAsync("your_webex_teams_account@example.com", "Hello, I am a guest!!")).GetData();

Console.WriteLine("Message was posted: ID = {0}", message.Id);

// Gets Enumerator to list all the Group spaces.
var e = (await teams.ListSpacesAsync(
                       type: SpaceType.Group,
                       max: 50)
        ).GetListResultEnumerator();

// Iterates until getting all the spaces.
while (await e.MoveNextAsync())
{
  var r = e.CurrentResult;

  if (r.IsSuccessStatus && r.Data.HasItems)
  {
    // Each result has space list.
    foreach (var space in r.Data.Items)
    {
      // Say "Hello" to the specific named space.
      if (space.Title == "Demo space for Webex Teams API Client(Thrzn41.WebexTeams)")
      {
        await teams.CreateMessageAsync(space, "Hello, Webex Teams!!");
      }
    }

  }
}

using Thrzn41.Util
using Thrzn41.WebexTeams
using Thrzn41.WebexTeams.Version1

/// Basic APIs.
TeamsAPIClient teams = TeamsAPI.CreateVersion1Client(token);

/// Admin APIs.
TeamsAdminAPIClient teams = TeamsAPI.CreateVersion1AdminClient(token);

char[] tokens = GetBotTokenFromBotOwner();

var protectedToken = LocalProtectedString.FromChars(tokens);
LocalProtectedString.ClearChars(tokens);

Save("token.dat",   protectedToken.EncryptedData);
Save("entropy.dat", protectedToken.Entropy);

byte[] encryptedData = Load("token.dat");
byte[] entropy       = Load("entropy.dat");

var protectedToken = LocalProtectedString.FromEncryptedData(encryptedData, entropy);

/// Basic APIs.
TeamsAPIClient teams = TeamsAPI.CreateVersion1Client(protectedToken);

var result = await teams.CreateMessageAsync("xyz_space_id", "Hello, Teams!");

if(result.IsSuccessStatus)
{
   Console.WriteLine("Message was posted: id = {0}", result.Data.Id);
}

var result = await teams.CreateMessageAsync("xyz_space_id", "Hello, Teams!");

if(result.IsSuccessStatus)
{
   Console.WriteLine("Message was posted: id = {0}", result.Data.Id);
}
else
{
  Console.WriteLine("Failed to post a message: status = {0}, trackingId = {1}", result.HttpStatusCode, result.TrackingId);

  if(result.Data.HasErrors)
  {
    Console.WriteLine( result.Data.GetErrorMessage() );
  }
}

try
{
  var result = await teams.CreateMessageAsync("xyz_space_id", "Hello, Teams!");

  var message = result.GetData();

  Console.WriteLine("Message was posted: id = {0}", message.Id);
}
catch(TeamsResultException tre)
{
  Console.WriteLine("Failed to post a message: status = {0}, trackingId = {1}, description = {2}",
                      tre.HttpStatusCode, tre.TrackingId, tre.Message);
}

using (var fs   = new FileStream("path/myfile.png", FileMode.Open, FileAccess.Read, FileShare.Read))
using (var data = new TeamsFileData(fs, "imagefile.png", TeamsMediaType.ImagePNG))
{
    var result = await teams.CreateMessageAsync("xyz_space_id", "Hello Teams with Attachment", data);

    if(result.IsSuccessStatus)
    {
       Console.WriteLine("Message was posted with attachment: id = {0}", result.Data.Id);
    }
}

var result = await teams.CreateDirectMessageAsync("targetuser@example.com", "Hello, Teams!");

if(result.IsSuccessStatus)
{
   Console.WriteLine("Message was posted: id = {0}", result.Data.Id);
}

var result = await teams.ListSpacesAsync();

if(result.IsSuccessStatus && result.Data.HasItems)
{
  foreach (var item in result.Data.Items) {
    Console.WriteLine("Space: title = {0}", item.Title);
  }  
}

var result = await teams.GetFileInfoAsync(new Uri("https://api.example.com/path/to/file.png"));

if(result.IsSuccessStatus)
{
  var file = result.Data;

  Console.WriteLine("File: Name = {0}, Size = {1}, Type = {2}", file.Name, file.Size?.Value, file.MediaType?.Name);
}

using(var stream = new MemoryStream())
{
  var result = await teams.CopyFileDataToStreamAsync(new Uri("https://api.example.com/path/to/file.png"), stream);

  if(result.IsSuccessStatus)
  {
    var file = result.Data;

    Console.WriteLine("File: Name = {0}, Size = {1}, Type = {2}", file.Name, file.Size?.Value, file.MediaType?.Name);
  }
}

var result = await teams.ListSpacesAsync();

if(result.IsSuccessStatus)
{
  //
  // Do something...
  //

  if(result.HasNext)
  {
    // List next result.
    result = await result.ListNextAsync();

    if(result.IsSuccessStatus)
    {
      // ...
    }
  }
}

// Gets Enumerator to list all the Group spaces.
var e = (await teams.ListSpacesAsync(
                       type: SpaceType.Group,
                       max: 50)
        ).GetListResultEnumerator();

// Iterates until getting all the spaces.
while (await e.MoveNextAsync())
{
  var r = e.CurrentResult;

  if (r.IsSuccessStatus && r.Data.HasItems)
  {
    // Each result has space list.
    foreach (var space in r.Data.Items)
    {
      Console.WriteLine("Title = {0}", space.Title);
    }

  }
}

var result = await teams.ListSpacesAsync();

Console.WriteLine("Status is {0}", result.HttpStatusCode);

var result = await teams.ListSpacesAsync();

if(result.IsSuccessStatus)
{
  //
  // Do something...
  //
}
else if(result.HasRetryAfter)
{
  Console.WriteLine("Let's retry: {0}", result.RetryAfter.Delta);  
}

// Creates instance with Retry option(Max retry is 4 in this case).
var teams = TeamsAPI.CreateVersion1Client(token, new TeamsRetryHandler(4));

// If the request received HTTP 429. the request will be retried.
var result = await teams.GetMeAsync();


// If you want the client retry also on HTTP 500, 502, 503, 504 error response, use TeamsRetryOnErrorHandler.
// If there is no Retry-After header, the request will be retried after 15 sec delay in this case.
var teams = TeamsAPI.CreateVersion1Client(token, new TeamsRetryOnErrorHandler(4, TimeSpan.FromSeconds(15.0f)));

var result = await teams.ListSpacesAsync();

Console.WriteLine("Tracking id is {0}", result.TrackingId);  

var md = new MarkdownBuilder();

// Creates markdown with mention and ordered list.
md.Append("Hi ").AppendMentionToPerson("xyz_person_id", "PersonName").AppendLine();
md.AppendOrderedList("Item1");
md.AppendOrderedList("Item2");
md.AppendOrderedList("Item3");

var result = await teams.CreateMessageAsync("xyz_space_id", md.ToString());

var webhook = await teams.GetWebhookAsync("xyz_webhook_id");

var validator = webhook.CreateEventValidator();

byte[] webhookEventData = GetWebhookEventData();

if( validator.Validate(webhookEventData, "xyz_x_teams_signature_value") )
{
  Console.WriteLine("Notified data is valid!");
}

var notificationManager = new WebhookNotificationManager();

var webhook = await teams.GetWebhookAsync("xyz_webhook_id");

notificationManager.AddNotification(
  webhook,
  (eventData) =>
  {
    Console.WriteLine("Event is notified, id = {0}", eventData.Id);
  }
);

byte[] webhookEventData = GetWebhookEventData();

// Signature will be checked and notified to function which is added earlier.
notificationManager.ValidateAndNotify(webhookEventData, "xyz_x_teams_signature_value", encodingOfData);

var listener = new WebhookListener();

var endpointUri = listener.AddListenerEndpoint("yourwebhookserver.example.com", 8443);

var result = await teams.CreateWebhookAsync(
  "my webhook for test",
  endpointUri,
  EventResource.Message,
  EventType.Created);

var webhook = result.Data;

listener.AddNotification(
  webhook,
  async (eventData) =>
  {
    Console.WriteLine("Event is notified, id = {0}", eventData.Id);

    if(eventData.Resource == EventResource.Message)
    {
      Console.WriteLine("Message, id = {0}", eventData.MessageData.Id);
    }
  }
);

listener.Start();

var listener = new WebhookListener();

var endpointUri = listener.AddListenerEndpoint("localhost", 8080, false);

var result = await teams.CreateWebhookAsync(
  "my webhook for test",
  new Uri(String.Format("https://ngrok-xyz.example.com{0}", endpointUri.AbsolutePath)),
  EventResource.Message,
  EventType.Created);

var webhook = result.Data;

listener.AddNotification(
  webhook,
  async (eventData) =>
  {
    Console.WriteLine("Event is notified, id = {0}", eventData.Id);

    if(eventData.Resource == EventResource.Message)
    {
      Console.WriteLine("Message, id = {0}", eventData.MessageData.Id);
    }
  }
);

listener.Start();