/*
 * Copyright (c) 2005-2006 Erik Tigerholm <eriktigerholm@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

namespace OpenTraffic.Model.Importer
{
    using System;
    using System.Collections.Generic;

    public class Lookup
    {
        private static Lookup lookup;
        private Dictionary<Type, Dictionary<int, Object>> nDict;
        private Dictionary<Type, Dictionary<string, Object>> sDict;
        private Dictionary<String, Dictionary<int, List<Object>>> listDict;
        public void Clear()
        {
            nDict.Clear();
            sDict.Clear();
            listDict.Clear();
        }
        private Lookup()
        {
            nDict = new Dictionary<Type, Dictionary<int, Object>>();
            sDict = new Dictionary<Type, Dictionary<string, Object>>();
            listDict = new Dictionary<string, Dictionary<int, List<Object>>>();
        }
        public static Lookup Get()
        {
            if (lookup == null)
            {
                lookup = new Lookup();
            }
            return lookup;
        }
        public void Add<T>(int key, T o)
        {
            if (!nDict.ContainsKey(typeof(T)))
            {
                nDict.Add(typeof(T), new Dictionary<int, Object>());
            }
            nDict[typeof(T)].Add(key, o);
        }
        public void Add<T>(string key, T o)
        {
            if (!sDict.ContainsKey(typeof(T)))
            {
                sDict.Add(typeof(T), new Dictionary<String, Object>());
            }
            sDict[typeof(T)].Add(key, o);
        }

        public T GetObject<T>(int key)
        {
            if (!nDict.ContainsKey(typeof(T)))
                return default(T);
            if (!nDict[typeof(T)].ContainsKey(key))
                return default(T);
            return (T)nDict[typeof(T)][key];
        }

        public T GetObject<T>(string key)
        {
            if (!sDict.ContainsKey(typeof(T)))
                return default(T);
            if (!sDict[typeof(T)].ContainsKey(key))
                    return default(T);
            return (T)sDict[typeof(T)][key];
        }

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1004:GenericMethodsShouldProvideTypeParameter")]
        public bool ContainsKey<T>(string key)
        {
            return (sDict.ContainsKey(typeof(T)) && sDict[typeof(T)].ContainsKey(key));
        }

        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1004:GenericMethodsShouldProvideTypeParameter")]
        public bool ContainsKey<T>(int key)
        {
            return (nDict.ContainsKey(typeof(T)) && nDict[typeof(T)].ContainsKey(key));
        }
        public void AddToList(string name, int key, Object o)
        {
            if (!listDict.ContainsKey(name))
            {
                listDict.Add(name, new Dictionary<int, List<Object>>());
            }
            if (!listDict[name].ContainsKey(key))
            {
                listDict[name].Add(key, new List<Object>());
            }
            listDict[name][key].Add(o);
        }
        public List<Object> GetList(string name, int key)
        {
            if (!listDict.ContainsKey(name) || !listDict[name].ContainsKey(key))
                return null;

            return listDict[name][key];
        }
    }
}