using System.Text.Json;
using Microsoft.Extensions.Options;
using SWAD.API.Consts.Enums;
using SWAD.API.Models.Config.ApiServices;
using SWAD.API.Models.JsonStructures.MusicAPI.Spotify;

namespace SWAD.API.Services.MusicAPI.Auth;

/// <inheritdoc />
public class SpotifyAuthService : AbstractAuthService
{
    public SpotifyAuthService(IOptions<ApiServicesConfig> data)
    {
        ServiceType = MusicService.Spotify;
        Data = data.Value.ServicesData.First(x => x.Name == ServiceType.ToString());
    }

    public override async Task<IAuthResponse?> GetToken()
    {
        using var httpClient = new HttpClient();
        var content = new Dictionary<string, string>
        {
            { "grant_type", "client_credentials" },
            { "client_id", Data.ClientId },
            { "client_secret", Data.Secret }
        };
        try
        {
            var response = await httpClient.PostAsync(Data.Endpoints.Token, new FormUrlEncodedContent(content));
            if (response.IsSuccessStatusCode)
            {
                var ans = await JsonSerializer.DeserializeAsync<SpotifyAuthResponse>(
                    await response.Content.ReadAsStreamAsync());
                return ans;
            }
        }
        catch (Exception)
        {
            return null;
        }

        return null;
    }
}