using System.Text.Json;
using API.Contracts.Neutrino.Enums;
using API.Contracts.Neutrino.Requests;
using API.Contracts.Neutrino.Responses;
using Microsoft.AspNetCore.Mvc;
using RecNet.Application.Neutrino;

namespace API.Controllers.Neutrino;

[Route("[controller]")]
[ApiController]
public class NeutrinoController(INeutrinoAuthorizationService authorizationService) : ControllerBase
{
    // Photon sends the request with Content-Type: text/plain instead of application/json.
    [Route("authorize")]
    public async Task<ActionResult<NeutrinoAuthenticateResponse>> AuthorizeNeutrinoAsync(
        CancellationToken ct)
    {
        using var reader = new StreamReader(Request.Body);
        string rawText = await reader.ReadToEndAsync(ct);

        NeutrinoAuthenticateRequest? request;

        try
        {
            request = JsonSerializer.Deserialize<NeutrinoAuthenticateRequest>(rawText, new JsonSerializerOptions
            {
                IncludeFields = true,
                PropertyNameCaseInsensitive = true
            });
        }
        catch
        {
            return Ok(
                NeutrinoAuthenticateResponse.Failure(
                    AuthenticationResultCode.InvalidParameters));
        }

        if (request is null)
            return Ok(
                NeutrinoAuthenticateResponse.Failure(
                    AuthenticationResultCode.InvalidParameters));

        var result = await authorizationService.AuthorizeAsync(
            new AuthorizeNeutrinoCommand(
                request.ProfileId,
                request.AccessToken),
            ct);

        if (!result.Succeeded)
            return Ok(
                NeutrinoAuthenticateResponse.Failure(
                    MapFailure(result.Failure)));

        return Ok(
            NeutrinoAuthenticateResponse.Success(
                result.UserId!,
                result.Nickname!));
    }

    private static AuthenticationResultCode MapFailure(NeutrinoAuthorizationFailure? failure)
        => failure == NeutrinoAuthorizationFailure.InvalidParameters
            ? AuthenticationResultCode.InvalidParameters
            : AuthenticationResultCode.AuthenticationFailedWrongCredentials;
}