using System;
using System.Collections.Generic;
using System.Globalization;
using System.Xml;
using PI_Assync_PLD.Models;

public class PLDProcessor
{
    public List<PLDModel> ProcessarXML(string xml)
    {
        List<PLDModel> pldList = new List<PLDModel>();
        XmlDocument doc = new XmlDocument();
        doc.LoadXml(xml);

        XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
        nsmgr.AddNamespace("bm", "http://xmlns.energia.org.br/BM/v1");
        nsmgr.AddNamespace("bo", "http://xmlns.energia.org.br/BO/v1");
        nsmgr.AddNamespace("hdr", "http://xmlns.energia.org.br/MH/v1");
        nsmgr.AddNamespace("soapenv", "http://schemas.xmlsoap.org/soap/envelope");
        nsmgr.AddNamespace("xsi", "http://www.w3.org/2001/XMLSchema-instance");

        foreach (XmlNode pldNode in doc.SelectNodes("//bm:plds//bm:pld", nsmgr))
        {
            DateTime data = DateTime.ParseExact(
                pldNode.SelectSingleNode("bo:vigencia//bo:inicio", nsmgr).InnerText,
                "yyyy-MM-dd'T'HH:mm:ss'-03:00'", null
            );

            DateTime dia = data.Date;
            int hora = data.Hour + 1;
            string mes = data.ToString("yyMM");
            int diaSemana = (int)data.DayOfWeek == 0 ? 7 : (int)data.DayOfWeek;

            foreach (XmlNode valorNode in pldNode.SelectNodes("bo:valores/bo:valor", nsmgr))
            {
                string submercado = valorNode.SelectSingleNode("bo:submercado//bo:nome", nsmgr).InnerText;
                double valor = double.Parse(valorNode.SelectSingleNode("bo:valor//bo:valor", nsmgr).InnerText, new CultureInfo("en-US"));
                pldList.Add(new PLDModel(dia, hora, submercado, valor, mes, diaSemana));
            }
        }

        return pldList;
    }
}