using System.Collections.Generic;

/// <summary>
/// A bundle holds data that will be saved to disk later.
/// </summary>
public class Bundle
{
    #region Fields

    private readonly Dictionary<string, object> _data;

    /// <summary>
    /// Returns the amount of data included.
    /// </summary>
    public int Count {
        get {
          return _data.Count;
        }
    }

    #endregion

    #region Constructors

    public Bundle (Dictionary<string, object> data)
    {
        _data = data;
    }

    public Bundle () : this (new Dictionary<string, object> ())
    {
    }

    #endregion

    #region Put Methods

    public Bundle Put (string key, object obj)
    {
        _data.Add (key, obj);
        return this;
    }

    public Bundle PutString (string key, string str)
    {
        _data.Add (key, str);
        return this;
    }

    public Bundle PutInt (string key, int i)
    {
        _data.Add (key, i);
        return this;
    }

    public Bundle PutFloat (string key, float f)
    {
        _data.Add (key, f);
        return this;
    }

    public Bundle PutBundle (string key, Bundle bundle)
    {
        _data.Add (key, bundle);
        return this;
    }

    #endregion

    #region Get Methods

    public object Get (string key)
    {
        return _data [key];
    }

    public string GetString (string key)
    {
        var obj = _data [key];
        return obj as string;
    }

    public int GetInt (string key)
    {
        var obj = _data [key];
        if (obj is int) {
            return (int)obj;
        }
        return -1;
    }

    public float GetFloat (string key)
    {
        var obj = _data [key];
        if (obj is float) {
            return (float)obj;
        }
        return -1;
    }

    public Bundle GetBundle (string key)
    {
        var obj = _data [key];
        return obj as Bundle;
    }

    #endregion
}