using System;
using System.Collections.Generic;

namespace Rests
{
    [Serializable]
    public class RestObject : Dictionary<string, object>
    {
        public string Status
        {
            get { return this["status"] as string; }
            set { this["status"] = value; }
        }
        public string Error
        {
            get { return this["error"] as string; }
            set { this["error"] = value; }
        }
        public string Response
        {
            get { return this["response"] as string; }
            set { this["response"] = value; }
        }

        public RestObject(string status)
        {
            Status = status;
        }

        /// <summary>
        /// Gets value safely, if it does not exist, return null. Sets/Adds value safely, if null it will remove.
        /// </summary>
        /// <param name="key"></param>
        /// <param name="value"></param>
        /// <returns>Returns null if key does not exist.</returns>
        public new object this[string key]
        {
            get
            {
                object ret;
                if (TryGetValue(key, out ret))
                    return ret;
                return null;
            }
            set
            {
                if (!ContainsKey(key))
                {
                    if (value == null)
                        return;
                    Add(key, value);
                }
                else
                {
                    if (value != null)
                        base[key] = value;
                    else
                        Remove(key);
                }
            }
        }
    }
}