/// <summary>
/// Overriding to send card when award admin member is removed from team.
/// </summary>
/// <param name="membersRemoved">A member removed from team, as described by the conversation update activity.</param>
/// <param name="turnContext">Provides context for a turn of a bot.</param>
/// <param name="cancellationToken">A cancellation token that can be used by other objects or threads to receive notice of cancellation.</param>
/// <returns>Notification card when bot or member is removed from team.</returns>
protected override async Task OnMembersRemovedAsync(IList <ChannelAccount> membersRemoved, ITurnContext <IConversationUpdateActivity> turnContext, CancellationToken cancellationToken)
{
turnContext = turnContext ?? throw new ArgumentNullException(nameof(turnContext));
var activity = turnContext.Activity;
this.logger.LogInformation($"conversationType: {activity.Conversation?.ConversationType}, membersRemoved: {membersRemoved?.Count}");
if (activity.Conversation.ConversationType == ChannelConversationType)
{
var teamsDetails = turnContext.Activity.TeamsGetTeamInfo();
var admin = await this.configureAdminStorageProvider.GetAdminDetailAsync(teamsDetails.Id);
// In application, there is a persona named 'Champion' who is the only person in team to create reward cycle, add awards and publish results.
// In case if the Champion is removed from team, then the bot sends a new card to set up new Champion.
if (membersRemoved.Any(member => member.AadObjectId == admin.AdminObjectId))
{
this.logger.LogInformation($"Award captain is removed from team. {activity.Conversation.Id}");
await turnContext.SendActivityAsync(MessageFactory.Attachment(WelcomeCard.ConfigureNewAdminCard(this.localizer)), cancellationToken);
}
// Deleting team information from storage when bot is uninstalled from a team.
else if (membersRemoved.Any(member => member.Id == activity.Recipient.Id))
{
this.logger.LogInformation($"Bot removed {activity.Conversation.Id}");
var teamEntity = await this.teamStorageProvider.GetTeamDetailAsync(teamsDetails.Id);
bool operationStatus = await this.teamStorageProvider.DeleteTeamDetailAsync(teamEntity);
if (!operationStatus)
{
this.logger.LogInformation($"Unable to remove team details from table storage.");
}
}
}
}
