using AS1024.NetworkQuality.Server;
using System.Text.Json.Serialization;
const string schemeNetQuality = "https";
var builder = WebApplication.CreateSlimBuilder(args);

builder.Services.ConfigureHttpJsonOptions(options =>
{
});

var app = builder.Build();

app.MapGet("/api/v1/config", (HttpRequest request) =>
{
    string host = request.Host.Host;
    int port = request.Host.Port ?? 
    (request.IsHttps ? 443 : 80);
    Uri smallDownloadUrl = new UriBuilder
    {
        Scheme = schemeNetQuality,
        Host = host,
        Port = port,
        Path = "/api/v1/small"
    }.Uri;

    Uri largeDownloadUrl = new UriBuilder
    {
        Scheme = schemeNetQuality,
        Host = host,
        Port = port,
        Path = "/api/v1/large"
    }.Uri;

    Uri uploadUrl = new UriBuilder
    {
        Scheme = schemeNetQuality,
        Host = host,
        Port = port,
        Path = "/api/v1/upload"
    }.Uri;

    ConfigResponse config = new()
    {
        Version = 1,
        Urls = new Urls
        {
            SmallDownloadUrl = smallDownloadUrl.AbsoluteUri,
            LargeDownloadUrl = largeDownloadUrl.AbsoluteUri,
            UploadUrl = uploadUrl.AbsoluteUri
        }
    };

    return Results.Json(config,
        AppJsonSerializerContext.Default);
});

app.MapGet("/api/v1/small", (HttpResponse response) =>
{
    response.ContentType = "application/octet-stream";
    return Results.File(new byte[] { 0 });
});

app.MapGet("/api/v1/large", (HttpResponse response) =>
{
    response.ContentType = "application/octet-stream";
    return Results.Stream(new LargeStreamResult());
});

app.MapPost("/api/v1/upload", async (HttpRequest request) =>
{
    using (var stream = new System.IO.MemoryStream())
    {
        await request.Body.CopyToAsync(stream);
    }
    return Results.Ok();
});

app.Run();


[JsonSerializable(typeof(ConfigResponse))]
internal partial class AppJsonSerializerContext : JsonSerializerContext
{

}