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It truly is the bare minimum of knowledge necessary to be successful in this position. I don't want you to spend a lot of time on this. You should be able to do this in an hour or so if the job is right for you. +.NET Core 2.2 | +.NET Standard 2.0 | +Visual Studio 2019 | +WPF | +RX.NET | +GraphQL -Order Search -This programming task consists of building a simple console application to search for orders. Fork this repository and create your application. It should take this input from the user: +Instructions: -(Order Number || (MSA && Status)) && CompletionDte +Download solution as zip and extract. +Set SimpleOrderSearch.Desktop and SimpleOrderSearch.Service as startup projects. Ensuring that the service is the first project to start up. +Run the service solution and the client solution. +The UI should be easy to navigate. -The console application will call a service that you create using C#. I have provided some sample data for the application in the JSON file in the data folder. - - - -The file contains an array whose elements represent orders. The data should be defined as a model in your service. - -The application calling the service can be a console app. You have total freedom to do what you want but make sure it can do these three things: - -• Validate that the user has provided the right criteria to make a search - -• Provide an offset and page value for pagination. - -• Write the outputs of the service call to a console window. - -Create a pull request once you have it working. I will clone your repository, verify that it works, and evaluate it. Please ensure you include any instructions for running that may be required. diff --git a/SimpleOrderSearch.Desktop/App.config b/SimpleOrderSearch.Desktop/App.config new file mode 100644 index 0000000..81a268a --- /dev/null +++ b/SimpleOrderSearch.Desktop/App.config @@ -0,0 +1,22 @@ + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/SimpleOrderSearch.Desktop/App.xaml b/SimpleOrderSearch.Desktop/App.xaml new file mode 100644 index 0000000..b90de89 --- /dev/null +++ b/SimpleOrderSearch.Desktop/App.xaml @@ -0,0 +1,9 @@ + + + + + diff --git a/SimpleOrderSearch.Desktop/App.xaml.cs b/SimpleOrderSearch.Desktop/App.xaml.cs new file mode 100644 index 0000000..39da15c --- /dev/null +++ b/SimpleOrderSearch.Desktop/App.xaml.cs @@ -0,0 +1,17 @@ +using System; +using System.Collections.Generic; +using System.Configuration; +using System.Data; +using System.Linq; +using System.Threading.Tasks; +using System.Windows; + +namespace SimpleOrderSearch.Desktop +{ + /// + /// Interaction logic for App.xaml + /// + public partial class App : Application + { + } +} diff --git a/SimpleOrderSearch.Desktop/FodyWeavers.xml b/SimpleOrderSearch.Desktop/FodyWeavers.xml new file mode 100644 index 0000000..e12df67 --- /dev/null +++ b/SimpleOrderSearch.Desktop/FodyWeavers.xml @@ -0,0 +1,4 @@ + + + + \ No newline at end of file diff --git a/SimpleOrderSearch.Desktop/FodyWeavers.xsd b/SimpleOrderSearch.Desktop/FodyWeavers.xsd new file mode 100644 index 0000000..f3ac476 --- /dev/null +++ b/SimpleOrderSearch.Desktop/FodyWeavers.xsd @@ -0,0 +1,26 @@ + + + + + + + + + + + 'true' to run assembly verification (PEVerify) on the target assembly after all weavers have been executed. + + + + + A comma-separated list of error codes that can be safely ignored in assembly verification. + + + + + 'false' to turn off automatic generation of the XML Schema file. + + + + + \ No newline at end of file diff --git a/SimpleOrderSearch.Desktop/MainViewModel.cs b/SimpleOrderSearch.Desktop/MainViewModel.cs new file mode 100644 index 0000000..ccddcf9 --- /dev/null +++ b/SimpleOrderSearch.Desktop/MainViewModel.cs @@ -0,0 +1,217 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Reactive.Linq; +using System.Text; +using System.Threading.Tasks; +using ReactiveUI; +using ReactiveUI.Fody.Helpers; +using DynamicData.Binding; +using System.Collections.ObjectModel; +using SimpleOrderSearch.Model; +//using System.Reactive; +using SimpleOrderSearch.Desktop.ProxyClient; +using DynamicData; +using ReactiveUI.Validation.Abstractions; +using ReactiveUI.Validation.Contexts; +using ReactiveUI.Validation.Extensions; +using ReactiveUI.Validation.Helpers; +using System.Reactive; + +namespace SimpleOrderSearch.Desktop +{ + public class MainViewModel : ReactiveValidationObject + { + List _cursorList = new List(); + + public ValidationContext OrderParametersRule { get; private set; } + + public ValidationHelper CompletionDateRule { get; private set; } + public ValidationHelper OrderNumberRule { get; private set; } + public ValidationHelper StatusRule { get; private set; } + public ValidationHelper MSARule { get; private set; } + + [Reactive] public string OrderNo { get; set; } + [Reactive] public string MSA { get; set; } + [Reactive] public string Status { get; set; } + [Reactive] public DateTime? CompletionDate { get; set; } = DateTime.Now; + + [Reactive] public int PageSize { get; set; } = 5; + [Reactive] public int PageNo { get; set; } = 1; + [Reactive] public bool HasValidCriteria { get; set; } = true; + [Reactive] public bool CanPageUp { get; set; } + [Reactive] public bool CanPageDown { get; set; } + [Reactive] public string ErrorMsg { get; set; } + + [Reactive] public PageInfo CurrentPageInfo { get; set; } = new PageInfo(); + private string CurrentCursor { get; set; } = string.Empty; + + + public ObservableCollection Orders { get; set; } = new ObservableCollection(); + + ReactiveCommand _rxSearchCommand; + ReactiveCommand _rxCommandPageUp; + ReactiveCommand _rxCommandPageDown; + public ReactiveCommand RxSearchCommad => _rxSearchCommand; + public ReactiveCommand RxCommandPageUp => _rxCommandPageUp; + public ReactiveCommand RxCommandPageDown => _rxCommandPageDown; + + public MainViewModel() + { + this.WhenAnyValue(x => x.MSA, x => x.Status, x => x.OrderNo, x => x.CompletionDate).Do(OnNextParamter).Subscribe(); + var canSearch = this.WhenAnyValue(x => x.HasValidCriteria); + + //var canPageUp = this.WhenAnyValue(x => x.HasValidCriteria, x => x.Orders.Count, x => x.CanPageUp, x => x.PageNo).Select(x => x.Item1 && x.Item2 > 0 && !x.Item3 && x.Item4 > 0); + //var canPageDown = this.WhenAnyValue(x => x.HasValidCriteria, x => x.Orders.Count, x => x.CanPageDown, x => x.PageNo).Select(x => x.Item1 && x.Item2 > 0 && !x.Item3 && x.Item4 > 0); + + var canPageUp = this.WhenAnyValue(x => x.CurrentPageInfo).Select(x => x.HasNextPage); + var canPageDown = this.WhenAnyValue(x => x.CurrentPageInfo).Select(x => x.HasPreviousPage); + + + + _rxSearchCommand = ReactiveCommand.Create(() => OnSearch(true), canSearch); + _rxCommandPageUp = ReactiveCommand.Create(() => OnPageUp(), canPageUp); + _rxCommandPageDown = ReactiveCommand.Create(() => OnPageDown(), canPageDown); + + ////OrderNumberRule = this.ValidationRule(vm => vm.OrderNo, + //// orderid => + //// { + //// var val = NumericValidation(orderid); + //// return val.isValid && val.parsedValue > 0 && !NumericValidation(this.MSA).isValid && !NumericValidation(this.Status).isValid; + //// } , + //// orderid => $"Order Number { (string.IsNullOrWhiteSpace(orderid) ? null : orderid) } Is Invalid."); + + ////MSARule = this.ValidationRule(vm => vm.MSA, + //// orderid => + //// { + //// var val = NumericValidation(orderid); + //// return val.isValid && val.parsedValue > 0 && !NumericValidation(this.MSA).isValid && !NumericValidation(this.Status).isValid; + //// }, + //// orderid => $"Order Number { (string.IsNullOrWhiteSpace(orderid) ? null : orderid) } Is Invalid."); + + ////StatusRule = this.ValidationRule(vm => vm.Status, + //// orderid => + //// { + //// var val = NumericValidation(orderid); + //// return val.isValid && val.parsedValue > 0 && !NumericValidation(this.MSA).isValid && !NumericValidation(this.Status).isValid; + //// }, + //// orderid => $"Order Number { (string.IsNullOrWhiteSpace(orderid) ? null : orderid) } Is Invalid."); + + } + + private void OnPageDown() + { + PageNo -= 1; + OnSearch(false, false); + } + + private void OnPageUp() + { + PageNo += 1; + OnSearch(false, true); + } + + private async void OnSearch(bool isCursorReset = true, bool? isPageUp = null) + { + if (isCursorReset) + _cursorList.Clear(); + else + { + if (isPageUp.HasValue && isPageUp.Value == false) + { + CurrentCursor = _cursorList[this.PageNo]; + } + } + + OrderSearchQuery query = new OrderSearchQuery() + { + CompletionDate = this.CompletionDate, + MSA = MSA.ToNullableValue(), + OrderNumber = OrderNo.ToNullableValue(), + Page = this.PageNo, + PageLimit = this.PageSize, + Status = Status.ToNullableValue(), + Cursor = isCursorReset ? string.Empty : CurrentCursor, + IsPageUp = isPageUp.HasValue == false ? (bool?)null : isPageUp.HasValue && isPageUp.Value + }; + + ////var orderResults = OrderSearchProxy.GetOrders(query); + var results = await OrderSearchProxy.PostOrderGraphQLQuery(query); + if (results != null) + { + if (results.PageInfo != null) + { + results.PageInfo.HasPreviousPage = this.PageNo > 1; + + CurrentPageInfo = results.PageInfo; + + string cursor = results.Edges.LastOrDefault()?.Cursor ?? string.Empty; + + CurrentCursor = cursor; + + if (isCursorReset || (isPageUp != null && !_cursorList.Contains(cursor))) + _cursorList.Add(cursor); + + Orders.Clear(); + + foreach (var node in results.Edges.Select(p => p.Node)) + { + Orders.Add(node); + } + } + } + + //this.CanPageDown = orderResults.IsStart; + //this.CanPageUp = orderResults.IsEnd; + //Orders.Clear(); + + //if (graphQlQryResults != null) + //{ + // graphQlQryResults.ForEach((order) => { Orders.Add(order); }); + //} + + ////if (orderResults.IsValid) + ////{ + //// foreach (var result in orderResults?.Orders) + //// { + //// Orders.Add(result); + //// } + ////} + ////else if (orderResults.ErrorResponse != null && orderResults.ErrorResponse.Errors.Any()) + ////{ + //// ErrorMsg = string.Join("|", orderResults.ErrorResponse.Errors.Select(p => p.Message)); + ////} + } + + private void OnNextParamter((string msa, string status, string orderno, DateTime? completionDate) obj) + { + List errors = new List(); + + if (!obj.completionDate.HasValue) + errors.Add("Valid CompletionDate Required."); + + var orderObj = NumericValidation(obj.orderno); + var msaObj = NumericValidation(obj.msa); + var statusObj = NumericValidation(obj.status); + + if (!orderObj.isValid && !msaObj.isValid && !statusObj.isValid) + errors.Add("Valid Numeric OrderNo or Valid Numeric Status and MSA value Required."); + else if (!orderObj.isValid) + { + if (msaObj.isValid && !statusObj.isValid) + errors.Add("Numeric Status Value Required."); + else if (!msaObj.isValid && statusObj.isValid) + errors.Add("Numeric MSA Value Required."); + } + HasValidCriteria = !errors.Any(); + ErrorMsg = string.Join("|", errors); + } + + private (object orgValue, int parsedValue, bool isValid) NumericValidation(object o) + { + int parsedValue; + bool isValid = int.TryParse(o == null ? string.Empty : o.ToString(), out parsedValue); + return (o, parsedValue, isValid); + } + } +} \ No newline at end of file diff --git a/SimpleOrderSearch.Desktop/MainWindow.xaml b/SimpleOrderSearch.Desktop/MainWindow.xaml new file mode 100644 index 0000000..2dc0750 --- /dev/null +++ b/SimpleOrderSearch.Desktop/MainWindow.xaml @@ -0,0 +1,108 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +