using Knoks.CryptoExchanges.Data.Interfaces;
using Knoks.CryptoExchanges.Entities;
using Knoks.Framework.DataAccess;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Knoks.CryptoExchanges.Data.Dao
{
    public class ExchangeDao : IExchangeDao
    {
        private IProcExecutor executor;
        public ExchangeDao(IProcExecutor executor)
        {
            this.executor = executor;
        }
        public async Task<IEnumerable<Exchange>> GetExchanges(int? exchangeId = null)
        {
            return (await executor.Go(DatabaseNames.Prices, "GetExchanges", new { ExchangeId = exchangeId })).Тables[0].ToList<ExchangeData>().GroupBy(it => new { id = it.ExchangeId, name = it.ExchangeName }).Select(it => new Exchange()
            {
                ExchangeId = it.Key.id,
                ExchangeName = it.Key.name,
            });
        }
        
        private class ExchangeData
        {
            public short ExchangeId { get; set; }
            public string ExchangeName { get; set; }
            //public string Currency1 { get; set; }
            //public string Currency2 { get; set; }
            //public string Currency { get; set; }
            //public string TickerDisplayName { get; set; }
        }
    }
}