using System.Collections.Generic;
using System.Xml;

namespace SCMA
{
    public class DataModel
    {

        #region oggetti di base

        public class ouData
        {

            public string SymbolicName { get; set; }

            public string BrowseName { get; set; }

            public string DataType { get; set; }

            public string ValueRank { get; set; }


        }

        public class Property : ouData
        {
            public string Value { get; set; }
        }

        public class Variable : ouData
        {
            public string Units { get; set; }
            public string CmsDataType { get; set; } = "";
            public string CmsDataIndex { get; set; } = "";
            public string CmsDataOpt { get; set; } = "";
            public int CmsDataScale { get; set; } = 1;
        }
        public class Condition : ouData
        {
            public string Type { get; set; }
            public string Units { get; set; }
        }

        public class Component
        {
            public string Name { get; set; }
            public string BrowseName { get; set; }
        }

        public List<Property> Properties;
        public List<Variable> Variables;
        public List<Component> Components;
        public List<Condition> Conditions;

        #endregion

        /// <summary>
        /// init base
        /// </summary>
        /// <param name="file"></param>
        public DataModel()
        {
            Properties = new List<Property>();
            Variables = new List<Variable>();
            Components = new List<Component>();
            Conditions = new List<Condition>();
        }

        /// <summary>
        /// Deserializza modello a partire da classe base
        /// </summary>
        /// <param name="xmlOrig"></param>
        public DataModel Deserialize(string xmlOrig)
        {
            DataModel answ = new DataModel();
            var xmlDocument = new XmlDocument();
            xmlDocument.LoadXml(xmlOrig);
            string baseNS = "Machine";
            var itemRef = xmlDocument.GetElementsByTagName(baseNS);
            // aggiungo i child...
            var xmlNodeList = itemRef[0]?.ChildNodes;
            addNodes(baseNS, xmlNodeList);

            // salvo proprietà, variabili, condizioni, ...
            answ.Properties = Properties;
            answ.Variables = Variables;
            answ.Components = Components;
            answ.Conditions = Conditions;

            return answ;
        }
        /// <summary>
        /// Deserializza modello a partire da classe base
        /// </summary>
        /// <param name="fileName"></param>
        public DataModel DeserializeFile(string fileName)
        {
            DataModel answ = new DataModel();
            var xmlDocument = new XmlDocument();
            xmlDocument.Load(fileName);
            string baseNS = "Machine";
            var itemRef = xmlDocument.GetElementsByTagName(baseNS);
            // aggiungo i child...
            var xmlNodeList = itemRef[0]?.ChildNodes;
            addNodes(baseNS, xmlNodeList);
            return answ;
        }


        private void addNodes(string baseNS, XmlNodeList xmlNodeList)
        {
            // se ho child processo---
            if (xmlNodeList.Count > 0)
            {
                foreach (XmlElement xmlElement in xmlNodeList)
                {
                    saveMemItem(xmlElement, baseNS);
                }
            }
        }

        /// <summary>
        /// Verifica elemento e lo inserisce in memoria
        /// </summary>
        /// <param name="currElement"></param>
        private void saveMemItem(XmlElement currElement, string baseNS)
        {
            if (currElement.Name != "Component" && currElement.Name != "Conditions")
            {
                switch (currElement.Name)
                {
                    case "Property":
                        AddProperty(currElement, baseNS);
                        break;
                    case "Condition":
                        AddCondition(currElement, baseNS);
                        break;
                    default:
                        AddVariable(currElement, baseNS);
                        break;
                }
            }
            else
            {
                var varName = currElement.Attributes["Name"].Value;
                if (currElement.Name == "Conditions")
                {
                    // CreateConditions(folder, stringFolderName + "/" + varName, varName, xmlElement, stringFolderName, folderInstanceState, nameSpaceIndex);
                }
                else
                {
                    AddComponent(currElement, baseNS);
                }
            }
        }
        private void AddComponent(XmlElement currElement, string baseNS)
        {
            Component newItem = new Component
            {
                Name = currElement.Attributes["Name"].Value,
                BrowseName = string.Format(baseNS + ":" + currElement.Attributes["Name"].Value)
            };
            Components.Add(newItem);
            // controllo se ha dei child... nel caso aggiungo i child...
            var xmlNodeList = currElement?.ChildNodes;
            if (xmlNodeList.Count > 0)
            {
                addNodes(newItem.BrowseName, xmlNodeList);
            }
        }
        private void AddProperty(XmlElement currElement, string baseNS)
        {
            Property newItem = new Property
            {
                SymbolicName = currElement.Attributes["SymbolicName"].Value,
                BrowseName = string.Format(baseNS + ":" + currElement.Attributes["SymbolicName"].Value),
                DataType = currElement.Attributes["DataType"].Value,
                ValueRank = currElement.Attributes["ValueRank"].Value,
                Value = currElement.Attributes["Value"].Value
            };
            Properties.Add(newItem);
            // controllo se ha dei child... nel caso aggiungo i child...
            var xmlNodeList = currElement?.ChildNodes;
            if (xmlNodeList.Count > 0)
            {
                addNodes(newItem.BrowseName, xmlNodeList);
            }
        }
        private void AddVariable(XmlElement currElement, string baseNS)
        {
            Variable newItem = new Variable
            {
                SymbolicName = currElement.Attributes["SymbolicName"].Value,
                BrowseName = string.Format(baseNS + ":" + currElement.Attributes["SymbolicName"].Value),
                DataType = currElement.Attributes["DataType"].Value,
                ValueRank = currElement.Attributes["ValueRank"].Value,
                Units = currElement.Attributes["Units"].Value,
                CmsDataIndex = currElement.Attributes["CmsDataIndex"] == null ? "" : currElement.Attributes["CmsDataIndex"].Value,
                CmsDataOpt = currElement.Attributes["CmsDataOpt"] == null ? "" : currElement.Attributes["CmsDataOpt"].Value,
                CmsDataType = currElement.Attributes["CmsDataType"] == null ? "" : currElement.Attributes["CmsDataType"].Value,
                CmsDataScale = currElement.Attributes["CmsDataScale"] == null ? 1 : XmlConvert.ToInt32(currElement.Attributes["CmsDataScale"].Value)
            };
            Variables.Add(newItem);
            // controllo se ha dei child... nel caso aggiungo i child...
            var xmlNodeList = currElement?.ChildNodes;
            if (xmlNodeList.Count > 0)
            {
                addNodes(newItem.BrowseName, xmlNodeList);
            }
        }
        private void AddCondition(XmlElement currElement, string baseNS)
        {
            Condition newItem = new Condition
            {
                SymbolicName = currElement.Attributes["SymbolicName"].Value,
                BrowseName = string.Format(baseNS + ":" + currElement.Attributes["SymbolicName"].Value),
                DataType = currElement.Attributes["DataType"].Value,
                ValueRank = currElement.Attributes["ValueRank"].Value,
                Type = currElement.Attributes["Type"].Value,
                Units = currElement.Attributes["Units"].Value
            };
            Conditions.Add(newItem);
            // controllo se ha dei child... nel caso aggiungo i child...
            var xmlNodeList = currElement?.ChildNodes;
            if (xmlNodeList.Count > 0)
            {
                addNodes(newItem.BrowseName, xmlNodeList);
            }
        }
    }
}