CryptoExchange.Net/CryptoExchange.Net/SharedApis/Models/SharedSymbolRequest.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace CryptoExchange.Net.SharedApis
{
    /// <summary>
    /// Symbol request
    /// </summary>
    public record SharedSymbolRequest : SharedRequest
    {
        /// <summary>
        /// Trading mode
        /// </summary>
        public TradingMode TradingMode { get; }
        /// <summary>
        /// The symbol
        /// </summary>
        public SharedSymbol? Symbol { get; set; }
        /// <summary>
        /// Symbols
        /// </summary>
        public SharedSymbol[]? Symbols { get; set; }

        /// <summary>
        /// ctor
        /// </summary>
        public SharedSymbolRequest(SharedSymbol symbol, ExchangeParameters? exchangeParameters = null) : base(exchangeParameters)
        {
            Symbol = symbol;
            TradingMode = symbol.TradingMode;
        }

        /// <summary>
        /// ctor
        /// </summary>
        public SharedSymbolRequest(IEnumerable<SharedSymbol> symbols, ExchangeParameters? exchangeParameters = null) : base(exchangeParameters)
        {
            if (!symbols.Any())
                throw new ArgumentException("Empty symbol list");

            if (symbols.GroupBy(x => x.TradingMode).Count() > 1)
                throw new ArgumentException("All symbols in the symbol list should have the same trading mode");

            Symbols = symbols.ToArray();
            TradingMode = Symbols.First().TradingMode;
        }
    }
}