public async Task <IActionResult> GetFollowersAsync(string requestedUsername)
{
if (string.IsNullOrEmpty(requestedUsername))
{
_logger.LogError(LoggingEvents.GetListNotFound, "The search criterion is null or empty");
return(BadRequest("No search criterion"));
}
try
{
var requestedUser = await _userManager.GetUserWithNetworkAsync(requestedUsername);
if (requestedUser is null)
{
_logger.LogError(LoggingEvents.GetItem, $"Username '{requestedUsername}' not found at GetUserProfileAsync action");
return(StatusCode(500, $"requested user not found"));
}
var model = _mapper.Map <ICollection <Network>, IEnumerable <FollowerViewModel> >(requestedUser.Followers);
var requesterUsername = User.Identity.Name;
if (requestedUser is null)
{
_logger.LogError(LoggingEvents.GetItem, $"Username '{requestedUsername}' not found at GetUserProfileAsync action");
return(StatusCode(500, $"requested user not found"));
}
if (requesterUsername.Equals(requestedUsername))
{
// Own profile requested...
UserNetworkHelpers.SetupFollowersCollection(requestedUser, model);
return(Ok(model));
}
else
{
// Other user's profile requested...
var requestingUser = await _userManager.GetUserWithNetworkAsync(requesterUsername);
if (requestingUser is null)
{
_logger.LogError(LoggingEvents.GetItem, $"Username '{requesterUsername}' not found at GetUserProfileAsync action");
return(StatusCode(500, $"requesting user not found"));
}
UserNetworkHelpers.SetupFollowersCollection(requestingUser, model);
return(Ok(model));
}
}
catch (Exception ex)
{
_logger.LogError(LoggingEvents.Exception, ex, $"an unexpected error occurred");
return(StatusCode(500, "an unexpected error occurred"));
}
}
public void SetupFollowersCollection_ReturnsArgumentNullException_WhenFollowersIsNull()
{
ApplicationUser requestingUser = new ApplicationUser();
IEnumerable <FollowerViewModel> followers = null;
// Act & Assert
var ex = Assert.Throws <ArgumentNullException>(() => UserNetworkHelpers.SetupFollowersCollection(requestingUser, followers));
Assert.Equal("The followers collection is null (Parameter 'followers')", ex.Message);
}