using System;
using System.Collections;
using System.Runtime.InteropServices;

using libdivecomputer;

namespace libdivecomputer {

	public class Context {

		internal IntPtr m_context;

		public enum dc_loglevel_t
		{
			DC_LOGLEVEL_NONE,
			DC_LOGLEVEL_ERROR,
			DC_LOGLEVEL_WARNING,
			DC_LOGLEVEL_INFO,
			DC_LOGLEVEL_DEBUG,
			DC_LOGLEVEL_ALL
		};

        [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
		public delegate void dc_logfunc_t (IntPtr context, dc_loglevel_t loglevel, string file, uint line, string function, string message, IntPtr userdata);

		[DllImport("libdivecomputer-0.dll", CallingConvention=CallingConvention.Cdecl)]
		static extern dc_status_t dc_context_new (ref IntPtr context);

		[DllImport("libdivecomputer-0.dll", CallingConvention=CallingConvention.Cdecl)]
		static extern dc_status_t dc_context_free (IntPtr context);

		[DllImport("libdivecomputer-0.dll", CallingConvention=CallingConvention.Cdecl)]
		static extern dc_status_t dc_context_set_loglevel (IntPtr context, dc_loglevel_t loglevel);

		[DllImport("libdivecomputer-0.dll", CallingConvention=CallingConvention.Cdecl)]
		static extern dc_status_t dc_context_set_logfunc (IntPtr context, dc_logfunc_t logfunc, IntPtr userdata);

		public Context ()
		{
			dc_status_t rc = dc_context_new (ref m_context);
			if (rc != dc_status_t.DC_STATUS_SUCCESS) {
				// TODO: Throw exception.
				Console.WriteLine (rc.ToString());
			}
		}

		~Context()
		{
			dc_context_free (m_context);
		}

		public dc_loglevel_t loglevel
		{
			set
			{
				dc_context_set_loglevel (m_context, value);
			}
		}

		public dc_logfunc_t logfunc
		{
			set
			{
				dc_context_set_logfunc (m_context, value, IntPtr.Zero);
			}
		}

	};

};