/*******************************************************************************/
/* Copyright (C) 2008 Jonathan Moore Liles                                     */
/*                                                                             */
/* This program is free software; you can redistribute it and/or modify it     */
/* under the terms of the GNU General Public License as published by the       */
/* Free Software Foundation; either version 2 of the License, or (at your      */
/* option) any later version.                                                  */
/*                                                                             */
/* This program is distributed in the hope that it will be useful, but WITHOUT */
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or       */
/* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for   */
/* more details.                                                               */
/*                                                                             */
/* You should have received a copy of the GNU General Public License along     */
/* with This program; see the file COPYING.  If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
/*******************************************************************************/

#include "const.h"

#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>

#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Scroll.H>
#include <FL/Fl_Tooltip.H>
#include <FL/fl_ask.H>
#include <FL/Fl_Shared_Image.H>
#include <FL/Fl_Pack.H>
#include <FL/Boxtypes.H>
#include "Thread.H"
#include "debug.h"

#include "Mixer.H"
#include "Project.H"

#include "Loggable.H"

/* for registration */
#include "Module.H"
#include "Gain_Module.H"
#include "Plugin_Module.H"
#include "JACK_Module.H"
#include "Meter_Module.H"
#include "Meter_Indicator_Module.H"
#include "Controller_Module.H"
#include "Mono_Pan_Module.H"
#include "Chain.H"
#include "Mixer_Strip.H"

#include "NSM.H"

#include <signal.h>

/* TODO: put these in a header */
#define USER_CONFIG_DIR ".non-mixer/"


const double OSC_INTERVAL = 0.1f;

char *user_config_dir;
Mixer *mixer;
NSM_Client *nsm;

char *instance_name;

#include <errno.h>

static int
ensure_dirs ( void )
{
    asprintf( &user_config_dir, "%s/%s", getenv( "HOME" ), USER_CONFIG_DIR );

    int r = mkdir( user_config_dir, 0777 );

    return r == 0 || errno == EEXIST;
}

#include <signal.h>

static void cb_main ( Fl_Double_Window *o, void *)
{
    if ( Fl::event() == FL_SHORTCUT && Fl::event_key() == FL_Escape )
	return;

    mixer->command_quit();
}

void
check_nsm ( void * v )
{
    nsm->check();
    Fl::repeat_timeout( OSC_INTERVAL, check_nsm, v );
}

static int got_sigterm = 0;

void
sigterm_handler ( int )
{
    got_sigterm = 1;
    Fl::awake();
}

void
check_sigterm ( void * )
{
    if ( got_sigterm )
    {
        MESSAGE( "Got SIGTERM, quitting..." );
        mixer->command_quit();
    }
}

int
main ( int argc, char **argv )
{
    Thread::init();

    Thread thread( "UI" );
    thread.set();

    ensure_dirs();

    signal( SIGTERM, sigterm_handler );

    Fl_Tooltip::color( FL_BLACK );
    Fl_Tooltip::textcolor( FL_YELLOW );
    Fl_Tooltip::size( 14 );
    Fl_Tooltip::hoverdelay( 0.1f );

    Fl::visible_focus( 0 );

    fl_register_images();

    LOG_REGISTER_CREATE( Mixer_Strip );
    LOG_REGISTER_CREATE( Chain );
    LOG_REGISTER_CREATE( Plugin_Module );
    LOG_REGISTER_CREATE( Gain_Module );
    LOG_REGISTER_CREATE( Meter_Module );
    LOG_REGISTER_CREATE( JACK_Module );
    LOG_REGISTER_CREATE( Mono_Pan_Module );
    LOG_REGISTER_CREATE( Meter_Indicator_Module );
    LOG_REGISTER_CREATE( Controller_Module );

    init_boxtypes();

    signal( SIGPIPE, SIG_IGN );

    Fl::get_system_colors();
    Fl::scheme( "plastic" );

    Fl::lock();

    Plugin_Module::spawn_discover_thread();

    Fl_Double_Window *main_window;

    {
        Fl_Double_Window *o = main_window = new Fl_Double_Window( 800, 600, "Non-DAW : Mixer" );
        {
            main_window->xclass( APP_NAME );

            Fl_Widget *o = mixer = new Mixer( 0, 0, main_window->w(), main_window->h(), NULL );
            Fl_Group::current()->resizable(o);
        }
        o->end();

        o->size_range( main_window->w(), mixer->min_h(), 0, 0 );

        o->callback( (Fl_Callback*)cb_main, main_window );
        o->show( argc, argv );
         // o->show();
    }

    const char *osc_port = NULL;

    nsm = new NSM_Client;

    instance_name = strdup( APP_NAME );

    {
        int r = argc - 1;
        int i = 1;
        for ( ; i < argc; ++i, --r )
        {
            if ( !strcmp( argv[i], "--instance" ) )
            {
                if ( r > 1 )
                {
                    MESSAGE( "Using instance name \"%s\"", argv[i+1] );
                    instance_name = strdup( argv[i+1] );
                    --r;
                    ++i;
                }
                else
                {
                    FATAL( "Missing instance name" );
		}
	    }
            else if ( !strcmp( argv[i], "--osc-port" ) )
            {
                if ( r > 1 )
                {
                    MESSAGE( "Using OSC port \"%s\"", argv[i+1] );
                    osc_port = argv[i+1];
                    --r;
                    ++i;
                }
                else
                {
                    FATAL( "Missing OSC port" );
                }
            }
            else if ( !strncmp( argv[i], "--", 2 ) )
            {
                WARNING( "Unrecognized option: %s", argv[i] );
            }
            else
                break;
        }

        mixer->init_osc( osc_port );

        char *nsm_url = getenv( "NSM_URL" );
        
        if ( nsm_url )
        {
            if ( ! nsm->init() )
            {
                nsm->announce( nsm_url, APP_NAME, ":switch:dirty:", argv[0] );

                // poll so we can keep OSC handlers running in the GUI thread and avoid extra sync
                Fl::add_timeout( OSC_INTERVAL, check_nsm, NULL );
            }
        }
        else
        {
            if ( r >= 1 )
            {
                MESSAGE( "Loading \"%s\"", argv[i] );
                
                if ( ! mixer->command_load( argv[i] ) )
                {
                    fl_alert( "Error opening project specified on commandline" );
                }
            }
        }
    }
    
    Fl::add_check( check_sigterm );

    Fl::run();

    delete main_window;
    main_window = NULL;

    MESSAGE( "Your fun is over" );
}