public async Task PostDiversityHttpTrigger_ReturnsStatusCodeConflict_WhenDiversityDetailsForCustomerExists()
        {
            _httpRequestMessageHelper.GetDiversityFromRequest <Models.Diversity>(_request).Returns(Task.FromResult(_diversity).Result);

            _resourceHelper.DoesCustomerExist(Arg.Any <Guid>()).Returns(true);
            _postDiversityHttpTriggerService.DoesDiversityDetailsExistForCustomer(Arg.Any <Guid>()).ReturnsForAnyArgs(true);

            var result = await RunFunction(ValidCustomerId);

            // Assert
            Assert.IsInstanceOf <HttpResponseMessage>(result);
            Assert.AreEqual(HttpStatusCode.Conflict, result.StatusCode);
        }
        public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "Customers/{customerId}/DiversityDetails")] HttpRequestMessage req, ILogger log, string customerId,
                                                           [Inject] IResourceHelper resourceHelper,
                                                           [Inject] IHttpRequestMessageHelper httpRequestMessageHelper,
                                                           [Inject] IValidate validate,
                                                           [Inject] IPostDiversityHttpTriggerService postDiversityService)
        {
            var touchpointId = httpRequestMessageHelper.GetTouchpointId(req);

            if (string.IsNullOrEmpty(touchpointId))
            {
                log.LogInformation("Unable to locate 'TouchpointId' in request header.");
                return(HttpResponseMessageHelper.BadRequest());
            }

            log.LogInformation("C# HTTP trigger function processed a request. " + touchpointId);

            if (!Guid.TryParse(customerId, out var customerGuid))
            {
                return(HttpResponseMessageHelper.BadRequest(customerGuid));
            }

            Models.Diversity diversityRequest;

            try
            {
                diversityRequest = await httpRequestMessageHelper.GetDiversityFromRequest <Models.Diversity>(req);
            }
            catch (JsonException ex)
            {
                return(HttpResponseMessageHelper.UnprocessableEntity(ex));
            }

            if (diversityRequest == null)
            {
                return(HttpResponseMessageHelper.UnprocessableEntity(req));
            }

            diversityRequest.SetIds(customerGuid, touchpointId);

            var errors = validate.ValidateResource(diversityRequest);

            if (errors != null && errors.Any())
            {
                return(HttpResponseMessageHelper.UnprocessableEntity(errors));
            }

            var doesCustomerExist = await resourceHelper.DoesCustomerExist(customerGuid);

            if (!doesCustomerExist)
            {
                return(HttpResponseMessageHelper.NoContent(customerGuid));
            }

            var isCustomerReadOnly = await resourceHelper.IsCustomerReadOnly(customerGuid);

            if (isCustomerReadOnly)
            {
                return(HttpResponseMessageHelper.Forbidden(customerGuid));
            }

            var doesDiversityDetailsExist = postDiversityService.DoesDiversityDetailsExistForCustomer(customerGuid);

            if (doesDiversityDetailsExist)
            {
                return(HttpResponseMessageHelper.Conflict());
            }

            var diversity = await postDiversityService.CreateAsync(diversityRequest);

            return(diversity == null
                ? HttpResponseMessageHelper.BadRequest(customerGuid)
                : HttpResponseMessageHelper.Created(JsonHelper.SerializeObject(diversity)));
        }