using System;

using System.Runtime.InteropServices;

namespace Loudmouth {

    public class ElementNode {

	private IntPtr _obj;

	public string Value {

	    get {

		return lm_message_node_get_value (this._obj);

	    } 

	    set {

		lm_message_node_set_value (this._obj, value);

	    }

	}

	[DllImport ("libloudmouth-1.so")]

	    private static extern string lm_message_node_get_value (IntPtr obj);

	[DllImport ("libloudmouth-1.so")]

	    private static extern void lm_message_node_set_value (IntPtr obj, string value);

	[DllImport ("libloudmouth-1.so")]

	    private static extern IntPtr lm_message_node_add_child (IntPtr obj, string name, string value);

	[DllImport ("libloudmouth-1.so")]

	    private static extern void lm_message_node_set_attribute (IntPtr obj, string name, string value);

	[DllImport ("libloudmouth-1.so")]

	    private static extern string lm_message_node_get_attribute (IntPtr obj, string name);

	[DllImport ("libloudmouth-1.so")]

	    private static extern IntPtr lm_message_node_get_child (IntPtr obj, string name);

	[DllImport ("libloudmouth-1.so")]

	    private static extern IntPtr lm_message_node_find_child (IntPtr obj, string name);

	public ElementNode (IntPtr obj) {

	    this._obj = obj;

	}

	public ElementNode AddChild (string name, string value) {

	    return new ElementNode(lm_message_node_add_child(this._obj, name, value));

	}

	public ElementNode GetChild (string name) {

	    IntPtr cChild = lm_message_node_get_child(this._obj, name);

	    if (cChild.ToInt32() == 0) {

		return null;

	    }

	    return new ElementNode(cChild);

	}

	public ElementNode FindChild (string name) {

	    IntPtr cChild = lm_message_node_find_child(this._obj, name);

	    if (cChild.ToInt32() == 0) {

		return null;

	    }

	    return new ElementNode(cChild);

	}

	public string this[string data] {

	    get {

		return lm_message_node_get_attribute(this._obj, data);

	    }

	    set {

		Console.WriteLine("Setting {0} = {1}: {2}", data, value, this._obj);

		lm_message_node_set_attribute (this._obj, data, value);

	    }

	}

	public override string ToString () {

	    return "Loudmouth.ElementNode";

	}

    }

}