| | | 1 | | // ReSharper disable MemberCanBePrivate.Global |
| | | 2 | | // ReSharper disable UnusedAutoPropertyAccessor.Global |
| | | 3 | | |
| | | 4 | | using planora.Domain.Errors; |
| | | 5 | | |
| | | 6 | | namespace planora.Application.Common; |
| | | 7 | | |
| | | 8 | | public class Result |
| | | 9 | | { |
| | 34 | 10 | | protected Result(bool isSuccess, AppError? error) |
| | | 11 | | { |
| | 34 | 12 | | if ((isSuccess && error is not null) || |
| | 34 | 13 | | (!isSuccess && error is null)) |
| | | 14 | | { |
| | 0 | 15 | | throw new ArgumentException("Invalid error", nameof(error)); |
| | | 16 | | } |
| | | 17 | | |
| | 34 | 18 | | IsSuccess = isSuccess; |
| | 34 | 19 | | Error = error; |
| | 34 | 20 | | } |
| | | 21 | | |
| | 50 | 22 | | public bool IsSuccess { get; } |
| | 24 | 23 | | public AppError? Error { get; } |
| | | 24 | | |
| | | 25 | | public static Result Success() |
| | | 26 | | { |
| | 6 | 27 | | return new Result(true, null); |
| | | 28 | | } |
| | | 29 | | |
| | | 30 | | public static Result<TValue> Success<TValue>(TValue value) |
| | | 31 | | { |
| | 12 | 32 | | return new Result<TValue>(value, true, null); |
| | | 33 | | } |
| | | 34 | | |
| | | 35 | | |
| | | 36 | | public static Result Failure(AppError appError) |
| | | 37 | | { |
| | 10 | 38 | | return new Result(false, appError); |
| | | 39 | | } |
| | | 40 | | |
| | | 41 | | public static Result<TValue> Failure<TValue>(AppError appError) |
| | | 42 | | { |
| | 6 | 43 | | return new Result<TValue>(default, false, appError); |
| | | 44 | | } |
| | | 45 | | |
| | | 46 | | // Implicit conversion from AppError to Result (failure) |
| | | 47 | | public static implicit operator Result(AppError appError) |
| | | 48 | | { |
| | 8 | 49 | | return Failure(appError); |
| | | 50 | | } |
| | | 51 | | } |
| | | 52 | | |
| | | 53 | | public class Result<TValue>(TValue? data, bool isSuccess, AppError? error) : Result(isSuccess, error) |
| | | 54 | | { |
| | | 55 | | public TValue Data |
| | | 56 | | { |
| | | 57 | | get |
| | | 58 | | { |
| | | 59 | | if (!IsSuccess) |
| | | 60 | | { |
| | | 61 | | throw new InvalidOperationException("Cannot access the data of a failed result"); |
| | | 62 | | } |
| | | 63 | | |
| | | 64 | | return data!; |
| | | 65 | | } |
| | | 66 | | } |
| | | 67 | | |
| | | 68 | | |
| | | 69 | | // Implicit conversion from TValue to Result<TValue> (success) |
| | | 70 | | public static implicit operator Result<TValue>(TValue value) |
| | | 71 | | { |
| | | 72 | | return Success(value); |
| | | 73 | | } |
| | | 74 | | |
| | | 75 | | // Implicit conversion from AppError to Result<TValue> (failure) |
| | | 76 | | public static implicit operator Result<TValue>(AppError appError) |
| | | 77 | | { |
| | | 78 | | return Failure<TValue>(appError); |
| | | 79 | | } |
| | | 80 | | } |