//Microsoft .NET Framework
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using System.Xml.Serialization;
using System.IO;
using System.Reflection;

//MUD Engine
using MudEngine.FileSystem;
using MudEngine.GameManagement;

namespace MudEngine.GameObjects
{
    public class BaseObject
    {
        [Category("Object Setup")]
        [Description("The Display Name assigned to this object.")]
        //Required to refresh Filename property in the editors propertygrid
        [RefreshProperties(RefreshProperties.All)]
        public String Name
        {
            get
            {
                return _Name;
            }
            set
            {
                _Name = value;
                if (this.GetType().Name.StartsWith("Base"))
                    Filename = value + "." + this.GetType().Name.Substring("Base".Length);
                else
                    Filename = value + "." + this.GetType().Name;
            }
        }
        private String _Name;

        [Category("Object Setup")]
        [Description("A brief description of this object. The description is displayed to users when they use a command for investigating an object")]
        public String Description { get; set; }

        /// <summary>
        /// A detailed description that treats each entry as a seperete line when outputted to the player
        /// </summary>
        public List<String> DetailedDescription { get; set; }

        [Category("Object Setup")]
        [ReadOnly(true)]
        [Description("The filename of the current object. This is assigned by the engine and not editable.")]
        public String Filename
        {
            //Returns the name of the object + the objects Type as it's extension.
            //Filenames are generated by the class itself, users can not assign it.
            get
            {
                return _Filename;
            }
            set
            {
                if (this.GetType().Name.StartsWith("Base"))
                {
                    if (value.EndsWith("." + this.GetType().Name.Substring("Base".Length)))
                    {
                        _Filename = value;
                    }
                    else
                        _Filename = value + "." + this.GetType().Name.Substring("Base".Length);
                }
                else
                {
                    if (value.EndsWith("." + this.GetType().Name))
                    {
                        _Filename = value;
                    }
                    else
                        _Filename =value + "." + this.GetType().Name;
                }
            }
        }
        String _Filename;

        protected virtual String SavePath { get; set; }

        [Category("Environment Information")]
        [Description("If a user asks to use his/her senses to investigate an area, this is one of the results that will be displayed. Senses can be used to assist blind characters.")]
        [DefaultValue("You don't smell anything unsual.")]
        public String Smell { get; set; }

        [Category("Environment Information")]
        [Description("If a user asks to use his/her senses to investigate an area, this is one of the results that will be displayed. Senses can be used to assist blind characters.")]
        [DefaultValue("You hear nothing of interest.")]
        public String Listen { get; set; }

        [Category("Environment Information")]
        [Description("If a user asks to use his/her senses to investigate an area, this is one of the results that will be displayed. Senses can be used to assist blind characters.")]
        [DefaultValue("You feel nothing.")]
        public String Feel { get; set; }

        public Game ActiveGame { get; set; }

        /// <summary>
        /// Initializes the base object
        /// </summary>
        public BaseObject(Game game)
        {
            Name = "New " + this.GetType().Name;
            ActiveGame = game;
            DetailedDescription = new List<String>();

            this.Feel = "You feel nothing.";
            this.Listen = "You hear nothing of interest.";
            this.Smell = "You don't smell anything unsual.";
            this.Name = DefaultName();

            this.Filename = DefaultName() + "." + this.GetType().Name;
        }


        ~BaseObject()
        {
        }

        private Boolean ShouldSerializeName()
        {
            return this.Name != DefaultName();
        }

        private void ResetName()
        {
            this.Name = DefaultName();
        }

        private String DefaultName()
        {
            return "New " + this.GetType().Name;
        }

        #region Public Methods
        public override String ToString()
        {
            return this.Name;
        }

        public virtual void Start()
        {
        }

        public virtual void OnEnter()
        {
        }

        public virtual void OnExit()
        {
        }

        public virtual void OnCreate()
        {
        }

        public virtual void OnDestroy()
        {
        }

        public virtual void OnEquip()
        {
        }

        public virtual void OnUnequip()
        {
        }

        public virtual void OnMount()
        {
        }

        public virtual void OnDismount()
        {
        }

        public virtual void Save()
        {
            string path = this.SavePath;

            if (String.IsNullOrEmpty(path))
                return;

            if (!Directory.Exists(path))
                Directory.CreateDirectory(path);

            String filename = Path.Combine(path, Filename);

            if (File.Exists(filename))
                File.Delete(filename);

            FileManager.WriteLine(filename, this.Name, "Name");
            FileManager.WriteLine(filename, this.Description, "Description");
            FileManager.WriteLine(filename, this.Feel, "Feel");
            FileManager.WriteLine(filename, this.Listen, "Listen");
            FileManager.WriteLine(filename, this.Smell, "Smell");

            foreach (String line in DetailedDescription)
                FileManager.WriteLine(filename, line, "DetailedDescription");
        }

        public virtual void Load(String filename)
        {
            if (String.IsNullOrEmpty(filename))
                return;

            if (!File.Exists(filename))
            {
                Log.Write("Error: Attempted to load file " + filename);
                return;
            }
            this.Name = FileManager.GetData(filename, "Name");
            this.Description = FileManager.GetData(filename, "Description");
            this.Feel = FileManager.GetData(filename, "Feel");
            this.Listen = FileManager.GetData(filename, "Listen");
            this.Smell = FileManager.GetData(filename, "Smell");

            List<String> data = FileManager.GetCollectionData(filename, "DetailedDescription");

            foreach (String line in data)
                DetailedDescription.Add(line);

            //Set the Filename property based off the physical filename, as setting this.Name sets a default filename
            //which might not match that of the actual physical filename on the harddrive.
            this.Filename = Path.GetFileName(filename);
        }
        #endregion
    }
}