using System.Globalization;
using System.Text.Json.Serialization;

namespace _1CDataBus.Structure
{
    public class Contract
    {
        private Dictionary<int, string> _contractKinds = new Dictionary<int, string>()
        {
            { 1, "Поставщик" },
            { 2, "Покупатель" },
            { 3, "Прочее" }
        };

        private List<string> _orderDealKinds = ["Приобретение ТМЦ", "Приобретение топлива"];

        public Contract(dynamic contract)
        {
            //Name = contract["Name"];
            Name = GetName();
            BusinessUnit = contract["BusinessUnit"]["ExternalId"];
            BusinessUnitBIN = contract["BusinessUnit"]["BINArmadoc"];
            Counterparty = contract["Counterparty"]["ExternalId"];
            CounterpartyBIN = contract["Counterparty"]["BINArmadoc"];
            Number = contract["RegistrationNumber"];
            Date = contract["ContractDateSungero"].Date.ToString("yyyy-MM-dd");
            Currency = contract["Currency"] == null ? "KZT" : contract["Currency"]["AlphaCode"];
            QDocID = contract["Id"].ToString();

            string dealKind = contract["DealKindSungero"]["Name"];
            if (dealKind != null && _orderDealKinds.Contains(dealKind)) Orders = true;
        }

        private string GetName()
        {
            var culture = CultureInfo.InvariantCulture;
            var result = "Договор";

            if (!string.IsNullOrEmpty(this.Number)) result += $" {this.Number}";
            if (!string.IsNullOrEmpty(this.Date)) result += $" от {DateTime.ParseExact(this.Date, "yyyy-MM-dd", culture).ToString("dd.MM.yyyy")}";

            return result;
        }

        [JsonConstructor]
        public Contract(string name, string businessUnit, string businessUnitBIN, string counterparty, string counterpartyBIN,
            string number, DateTime date, string currency, string qDocID)
        {
            Name = name;
            BusinessUnit = businessUnit;
            BusinessUnitBIN = businessUnitBIN;
            Counterparty = counterparty;
            CounterpartyBIN = counterpartyBIN;
            Number = number;
            Date = date.ToString("yyyy-MM-dd");
            Currency = currency;
            QDocID = qDocID;
        }

        public string Name { get; set; }
        public string BusinessUnit { get; set; }
        public string BusinessUnitBIN { get; set; }
        public string Counterparty { get; set; }
        public string CounterpartyBIN { get; set; }
        public string Number { get; set; }
        public string Date { get; set; }
        public string ContractKind { get; set; } = "Поставщик";
        public string Currency { get; set; }
        public bool Orders { get; set; } = false;
        public string QDocID { get; set; }
    }
}