using System.Net;
using System.Net.Http.Json;
using Prefab.Web.Client.Models.Home;
using Prefab.Web.Client.Models.Shared;

namespace Prefab.Web.Client.Services;

public interface IHomePageService
{
    Task<Result<HomePageModel>> Get(CancellationToken cancellationToken);
}

public sealed class HomePageService(HttpClient httpClient) : IHomePageService
{
    public async Task<Result<HomePageModel>> Get(CancellationToken cancellationToken)
    {
        using var response = await httpClient.GetAsync("bff/home", cancellationToken);

        var result = await response.Content.ReadFromJsonAsync<Result<HomePageModel>>(cancellationToken: cancellationToken);

        if (result is not null)
        {
            return result;
        }

        var status = (HttpStatusCode)response.StatusCode;
        var exception = new InvalidOperationException($"Response {(int)status} did not contain a valid payload.");
        var problem = ResultProblem.Unexpected("Failed to retrieve home page content.", exception, status);

        return Result<HomePageModel>.Failure(problem);
    }
}