using CH.CryptoStats.Abstractions;
using Microsoft.Extensions.Configuration;
using System.Text.Json;
namespace CH.CryptoStats.CoinMarketCap;

public class CoinMarketCap(HttpClient httpClient, IConfiguration configuration) : ICryptoStats
{
  public Task<Abstractions.CryptoStats> GetCryptoStats(string cryptoName, string currency, CancellationToken cancellationToken)
  {
    var apiKey = configuration.GetValue<string>("CoinMarketCap:ApiKey");
    var apiUrl = configuration.GetValue<string>("CoinMarketCap:ApiUrl");
    var result = httpClient.GetAsync($"{apiUrl}slug={cryptoName}&convert={currency}&CMC_PRO_API_KEY={apiKey}",cancellationToken).Result;
    return ParseCryptoStats(result, currency, cancellationToken);

  }

  public Task<Abstractions.CryptoStats> ParseCryptoStats(HttpResponseMessage result, string currency, CancellationToken cancellationToken)
  {
    var jsonResponse = result.Content.ReadAsStringAsync(cancellationToken);
    var jsonDocument = JsonDocument.Parse(jsonResponse.Result);
    var data = jsonDocument.RootElement.GetProperty("data");
    var cryptoElement = data.GetProperty("1");
    var quoteElement  = cryptoElement.GetProperty("quote").GetProperty("CAD");
    var cryptoStats = new Abstractions.CryptoStats
    {
      Name = cryptoElement.GetProperty("name").GetString(),
      Symbol = cryptoElement.GetProperty("symbol").GetString(),
      MaxSupply = cryptoElement.GetProperty("max_supply").GetInt32(),
      CirculatingSupply = cryptoElement.GetProperty("circulating_supply").GetInt32(),
      TotalSupply = cryptoElement.GetProperty("total_supply").GetInt32(),
      Currency = currency,
      UpdatedAt = DateTime.Parse(quoteElement .GetProperty("last_updated").GetString()),
      Price = quoteElement .GetProperty("price").GetDecimal(),
      Volume24H = quoteElement .GetProperty("volume_24h").GetDecimal(),
      VolumeChange24H = quoteElement .GetProperty("volume_change_24h").GetDecimal(),
      MarketCap = quoteElement .GetProperty("market_cap").GetDecimal(),
      MarketCapDominance = quoteElement .GetProperty("market_cap_dominance").GetDecimal(),
      FullyDilutedMarketCap = quoteElement .GetProperty("fully_diluted_market_cap").GetDecimal()
    };
    return Task.FromResult(cryptoStats);
  }
}