public virtual async Task ChangePasswordAsync()

in src/Amazon.AspNetCore.Identity.Cognito/CognitoUserStore/CognitoUserStore.cs [132:165]
33 lines of code
6 McCabe index (conditional complexity)

        public virtual async Task<IdentityResult> ChangePasswordAsync(TUser user, string currentPassword, string newPassword, CancellationToken cancellationToken)
        {
            cancellationToken.ThrowIfCancellationRequested();
            try
            {
                // We start an auth process as the user needs a valid session id to be able to change it's password.
                var authResult = await StartValidatePasswordAsync(user, currentPassword, cancellationToken).ConfigureAwait(false);
                if (authResult != null)
                {
                    if (authResult.ChallengeName == ChallengeNameType.NEW_PASSWORD_REQUIRED)
                    {
                        await user.RespondToNewPasswordRequiredAsync(new RespondToNewPasswordRequiredRequest()
                        {
                            SessionID = authResult.SessionID,
                            NewPassword = newPassword
                        }).ConfigureAwait(false);
                        return IdentityResult.Success;
                    }
                    else if (user.SessionTokens != null && user.SessionTokens.IsValid()) // User is logged in, we can change his password
                    {
                        await user.ChangePasswordAsync(currentPassword, newPassword).ConfigureAwait(false);
                        return IdentityResult.Success;
                    }
                    else
                        return IdentityResult.Failed(_errorDescribers.PasswordMismatch());
                }
                else
                    return IdentityResult.Failed(_errorDescribers.PasswordMismatch());
            }
            catch (AmazonCognitoIdentityProviderException e)
            {
                return IdentityResult.Failed(_errorDescribers.CognitoServiceError("Failed to change the Cognito User password", e));
            }
        }