using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
using GCHR.Model;
using GCHR.Model.Konto;

namespace GCHR.Mandantenschnittstelle
{
    class Volkswagen : IMandant
    {
        /// <summary>
        /// V = Volkswagen,
        /// A = Audi,
        /// S = Seat,
        /// C = Skoda,
        /// E = Bentley,
        /// L = Lamborghini
        /// </summary>
        enum Hauptmarke { V, A, S, C, E, L };

        /// <summary>
        /// 1 = Istdaten,
        /// 2 = Plandaten
        /// </summary>
        private const string Level = "1";

        private const string Country = "DEU";

        private const string Currency = "EUR";

        private static readonly XNamespace Tns = "http://xmldefs.volkswagenag.com/Retail/AccountBalanceDTS/V1";
        private static XNamespace _tns1 = "http://xmldefs.volkswagenag.com/DD/BasicTypes";
        private static XNamespace _xsi = "http://www.w3.org/2001/XMLSchema-instance";

        private XDocument _xmlDocument;
        private readonly XElement _accounts = new XElement(Tns + "Accounts");

        private readonly Konfiguration _config = Konfiguration.GetInstance();

        public bool BalanceDatei
        {
            get
            {
                return true;
            }
        }

        public bool AccountsDatei
        {
            get { return false; }
        }

        public string BalanceHeader
        {
            get
            {
                _xmlDocument = new XDocument();
                _xmlDocument.Add(new XElement(Tns + "ShowAccountBalance",
                                    new XAttribute(XNamespace.Xmlns + "tns", Tns),
                                    // new XAttribute(XNamespace.Xmlns + "tns1", tns1),
                                    // new XAttribute(XNamespace.Xmlns + "xsi", xsi),
                                    // new XAttribute(xsi + "schemaLocation", "http://xmldefs.volkswagenag.com/Retail/AccountBalanceDTS/V1 AccountBalanceDTS.xsd"),
                                    new XElement(Tns + "PartnerKey",
                                        new XElement(Tns + "Country", Country),
                                        new XElement(Tns + "Brand", Hauptmarke.V),
                                        new XElement(Tns + "PartnerNumber", _config.Händlernummer)
                                    ),
                                    new XElement(Tns + "IsCumulative", "true"),
                                    new XElement(Tns + "AccountingDate",
                                        new XElement(Tns + "AccountingMonth", HaendlerKonto.AktuellePeriode.Monat),
                                        new XElement(Tns + "AccountingYear", HaendlerKonto.AktuellePeriode.Jahr)
                                    ),
                                    new XElement(Tns + "Currency", Currency),
                                    new XElement(Tns + "Level", Level),
                                    _accounts
                                ));

                return "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>";
                /*
                return String.Format("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>" + Environment.NewLine +
                          "<tns:ShowAccountBalance" + Environment.NewLine +
                          "    xmlns:tns=\"http://xmldefs.volkswagenag.com/Retail/AccountBalanceDTS/V1\" " + Environment.NewLine +
                          "    xmlns:tns1=\"http://xmldefs.volkswagenag.com/DD/BasicTypes\" " + Environment.NewLine +
                          "    xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" " + Environment.NewLine +
                          "    xsi:schemaLocation=\"http://xmldefs.volkswagenag.com/Retail/AccountBalanceDTS/V1 AccountBalanceDTS.xsd\">" + Environment.NewLine +
                          "    <tns:PartnerKey>" + Environment.NewLine +
                          "        <tns:Country>{0}</tns:Country>" + Environment.NewLine +
                          "        <tns:Brand>{1}</tns:Brand>" + Environment.NewLine +
                          "        <tns:PartnerNumber>{2}</tns:PartnerNumber>" + Environment.NewLine +
                          "    </tns:PartnerKey>" + Environment.NewLine +
                          "    <tns:IsCumulative>true</tns:IsCumulative>" + Environment.NewLine +
                          "    <tns:AccountingDate>" + Environment.NewLine +
                          "        <tns:AccountingMonth>{3}</tns:AccountingMonth>" + Environment.NewLine +
                          "        <tns:AccountingYear>{4}</tns:AccountingYear>" + Environment.NewLine +
                          "    </tns:AccountingDate>" + Environment.NewLine +
                          "    <tns:Currency>{5}</tns:Currency>" + Environment.NewLine +
                          "    <tns:Level>{6}</tns:Level>" + Environment.NewLine +
                          "    <tns:Accounts>",

                              country, Hauptmarke.V, config.Händlernummer, Konto.aktuellePeriode.Monat, Konto.aktuellePeriode.Jahr, currency, level);
                 */
            }
        }

        public string BalanceFooter
        {
            get 
            {
                return _xmlDocument.ToString();    
            }
        }

        public string BalanceBody(HaendlerKonto kto)
        {
            _accounts.Add(new XElement(Tns + "Account",
                         new XElement(Tns + "ProfitCenter", "00"),
                         new XElement(Tns + "AccountKey", 
                              AccountKey(kto)
                              // accountAttributes(kto)
                         ),
                         new XElement(Tns + "AccountValue", AccountValue(kto))
            ));
            return String.Empty;
        }

        private string AccountKey(HaendlerKonto kto)
        {
            return String.Join("", AccountKeyDict(kto).Values.ToArray());
        }

        private object[] AccountAttributes(HaendlerKonto kto)
        {
            return (from attrib in AccountKeyDict(kto)
                    select new XAttribute(attrib.Key, attrib.Value)).ToArray();
        }

        private static Dictionary<string, string> AccountKeyDict(HaendlerKonto kto)
        {
            var marke = kto.Marke.PadRight(6, '?');
            var kontonummer = kto.Kontonummer.PadRight(10, '?');

            var dict = new Dictionary<string, string>();
            dict.Add("Brand", marke.Substring(0,2));
            dict.Add("ModelCode", marke.Substring(2));
            dict.Add("Account", kontonummer.Substring(0,4));
            dict.Add("CostCentre", kontonummer.Substring(4, 2));
            dict.Add("TradeChannel", kontonummer.Substring(6, 2));
            dict.Add("CostUnit", kontonummer.Substring(8, 2));
            dict.Add("Location", kto.Betrieb);
            dict.Add("TaxCode", "000");
            return dict;
        }

        private static string AccountValue(HaendlerKonto kto)
        {
            /*
            if (kto.KontoTyp == KontoTypen.SuSa)
            {
                return String.Format("{0:-0.00;+0.00;+0.00}", kto.Summe).Replace(',', '.');
            }*/
            return String.Format("{0:+0.00;-0.00;+0.00}", kto.Summe).Replace(',', '.');
        }


        public string AccountsHeader
        {
            get
            {
                return String.Empty;
            }
        }

        public string AccountsFooter
        {
            get
            {
                return String.Empty;
            }
        }

        public string AccountsBody(HaendlerKonto kto)
        {
            return String.Empty;
        }
    }
}