using CH.CryptoStats.Abstractions;
using Microsoft.Extensions.Configuration;
using System.Net.Http.Json;
using System.Text.Json;
using CH.Energy.Abstractions.Enum;

namespace CH.CryptoStats.CoinGecko;

public class CoinGeckoService(IConfiguration configuration, HttpClient httpClient) : ICryptoStats
{
  public async Task<Abstractions.CryptoStats> GetCryptoStatsAsync(string cryptoName, string currency, CancellationToken cancellationToken)
  {
    var apiKey = configuration.GetValue<string>("CoinGecko:ApiKey");
    var apiUrl = configuration.GetValue<string>("CoinGecko:ApiUrl");
    var response = await httpClient.GetAsync($"{apiUrl}?ids={cryptoName}&vs_currency={currency}&x_cg_demo_api_key={apiKey}",cancellationToken);
    var jsonResponse = await response.Content.ReadFromJsonAsync<List<CoinGeckoEntity>>(cancellationToken);
    return ParseCryptoStats(jsonResponse.FirstOrDefault(), currency, cancellationToken).Result;
  }

  private Task<Abstractions.CryptoStats> ParseCryptoStats(CoinGeckoEntity coinGeckoEntity, string currency, CancellationToken cancellationToken)
  {
    
    var cryptoStats = new Abstractions.CryptoStats
    {
      Name = coinGeckoEntity.Name,
      Symbol = coinGeckoEntity.Symbol,
      MaxSupply = coinGeckoEntity.MaxSupply,
      CirculatingSupply = coinGeckoEntity.CirculatingSupply,
      TotalSupply = coinGeckoEntity.TotalSupply,
      Currency = (Currency)System.Enum.Parse(typeof(Currency), currency.ToUpper()),
      UpdatedAt = coinGeckoEntity.LastUpdated,
      Price = coinGeckoEntity.Price,
      MarketCap = coinGeckoEntity.MarketCap,
      FullyDilutedMarketCap = coinGeckoEntity.FullyDilutedValuation
    };
    return Task.FromResult(cryptoStats);
  }
}