Pibd-21_Semin_D.A._SmallSoftware/SmallSoftwareProject/SmallSoftwareContracts/Infrastructure/OperationResponse.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System.Net;

namespace SmallSoftwareContracts.Infrastructure;

public class OperationResponse
{
    protected HttpStatusCode StatusCode { get; set; }

    protected object? Result { get; set; }

    protected string? FileName { get; set; }

    public IActionResult GetResponse(HttpRequest request, HttpResponse response)
    {
        ArgumentNullException.ThrowIfNull(request);
        ArgumentNullException.ThrowIfNull(response);
        response.StatusCode = (int)StatusCode;
        if (Result is null)
        {
            return new StatusCodeResult((int)StatusCode);
        }
        if (Result is Stream stream)
        {
            return new FileStreamResult(stream, "application/octetstream")
            {
                FileDownloadName = FileName
            };
        }
        return new ObjectResult(Result);
    }

    protected static TResult OK<TResult, TData>(TData data) where TResult : OperationResponse, new() => new() { StatusCode = HttpStatusCode.OK, Result = data };

    protected static TResult OK<TResult, TData>(TData data, string fileName) where TResult : OperationResponse, new() => new()
    {
        StatusCode = HttpStatusCode.OK,
        Result = data,
        FileName = fileName
    };

    protected static TResult NoContent<TResult>() where TResult :
    OperationResponse, new() => new() { StatusCode = HttpStatusCode.NoContent };
    protected static TResult BadRequest<TResult>(string? errorMessage = null)
    where TResult : OperationResponse, new() => new()
    {
        StatusCode =
    HttpStatusCode.BadRequest,
        Result = errorMessage
    };
    protected static TResult NotFound<TResult>(string? errorMessage = null)
    where TResult : OperationResponse, new() => new()
    {
        StatusCode =
    HttpStatusCode.NotFound,
        Result = errorMessage
    };
    protected static TResult InternalServerError<TResult>(string? errorMessage
    = null) where TResult : OperationResponse, new() => new()
    {
        StatusCode =
    HttpStatusCode.InternalServerError,
        Result = errorMessage
    };
}