namespace FeedbackGeneratorQQ.Models
{
   using System.Collections.Generic;
   using System.IO;
   using System.Linq;
   using System.Xml;

   using FeedbackGeneratorQQ.Utils;

   public class AttributeModel
   {
      /// <summary>
      /// Gets or sets a value indicating whether attribute is selected
      /// </summary>
      public bool IsSelected { get; set; }

      /// <summary>
      /// Gets or sets attribute type
      /// </summary>
      public string Type { get; set; }

      /// <summary>
      /// Gets or sets attribute name
      /// </summary>
      public string Name { get; private set; }

      /// <summary>
      /// Gets or sets attribute available types
      /// </summary>
      public List<string> Types { get; private set; }

      /// <summary>
      /// List of type, type_phrase pairs
      /// </summary>
      private readonly List<KeyValuePair<string, string>> content;

      public AttributeModel()
      {
         this.IsSelected = false;
         this.Types = new List<string>();
         this.content = new List<KeyValuePair<string, string>>();
      }

      public AttributeModel(string path) : this()
      {
         DirectoryInfo directoryInfo = new DirectoryInfo(path);
         this.Name = directoryInfo.Name;

         string templatePath = AttributesHelper.GetAttributePath(path);
         if (!File.Exists(templatePath))
         {
            return;
         }

         XmlDocument xmlDocument = new XmlDocument();
         xmlDocument.Load(templatePath);

         XmlNode rootNode = xmlDocument.SelectSingleNode(AttributesHelper.TemplateRootNode);
         if (rootNode == null)
         {
            return;
         }

         foreach (XmlNode childNode in rootNode.ChildNodes)
         {
            this.content.Add(new KeyValuePair<string, string>(childNode.Name, childNode.InnerText.Trim()));
         }

         this.Types = this.content.Select(x => x.Key).Distinct().ToList();
      }

      public List<string> GetMessages()
      {
         return this.content.Where(x => x.Key.Equals(this.Type))
            .Select(x => x.Value)
            .ToList();
      } 
   }
}