/* This file is part of Patchage.  Copyright (C) 2005 Dave Robillard.
 * 
 * Patchage 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.
 * 
 * Patchage 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 details.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "LashDriver.h"
#include "config.h"
#include <iostream>
#include <string>
#include "Patchage.h"
#include "StateManager.h"

using std::cerr; using std::cout; using std::endl;
using std::string;


LashDriver::LashDriver(Patchage* app, int argc, char** argv)
: _app(app),
  _client(NULL),
  _args(NULL)
{
	_args = lash_extract_args(&argc, &argv);
}


LashDriver::~LashDriver()
{
	if (_args)
		lash_args_destroy(_args);
}


void
LashDriver::attach(bool launch_daemon)
{
	// Already connected
	if (_client)
		return;

	int lash_flags = LASH_Server_Interface | LASH_Config_File;
	if (!launch_daemon)
		lash_flags |= LASH_No_Start_Server;
	_client = lash_init(_args, PACKAGE_NAME, lash_flags, LASH_PROTOCOL(2, 0));
	if (!_client) {
		_app->status_message("[LASH] Unable to attach to server");
	} else {
		//lash_event_t* event = lash_event_new_with_type(LASH_Client_Name);
		//lash_event_set_string(event, "Patchage");
		//lash_send_event(_client, event);
		signal_attached.emit();
		_app->status_message("[LASH] Attached");
	}
}


void
LashDriver::detach()
{
	_client = NULL;
	_app->status_message("[LASH] Detached");
	signal_detached.emit();
}


void
LashDriver::process_events()
{
	lash_event_t*  ev = NULL;
	lash_config_t* conf = NULL;

	// Process events
	while ((ev = lash_get_event(_client)) != NULL) {
		handle_event(ev);
		lash_event_destroy(ev);	
	}

	// Process configs
	while ((conf = lash_get_config(_client)) != NULL) {
		handle_config(conf);
		lash_config_destroy(conf);	
	}
}


void
LashDriver::handle_event(lash_event_t* ev)
{
	LASH_Event_Type type = lash_event_get_type(ev);
	const char*     c_str = lash_event_get_string(ev);
	string          str   = (c_str == NULL) ? "" : c_str;
	
	//cout << "[LashDriver] LASH Event.  Type = " << (unsigned int)type << ", string = " << str << "**********" << endl;
	
	switch (type) {
	case LASH_Project_Add:
		cerr << "LASH project add\n";
		break;
	case LASH_Project_Remove:
		cerr << "LASH remove\n";
		break;
	case LASH_Project_Dir:
		cerr << "LASH project dir\n";
		break;
	case LASH_Project_Name:
		cerr << "LASH project name\n";
		break;
	case LASH_Client_Add:
		cerr << "LASH client add\n";
		break;
	case LASH_Client_Name:
		cerr << "LASH client name\n";
		break;
	case LASH_Jack_Client_Name:
		cerr << "LASH jack client name\n";
		break;
	case LASH_Alsa_Client_ID:
		cerr << "LASH alsa client id\n";
		break;
	case LASH_Percentage:
		cerr << "LASH percentage\n";
		break;
	case LASH_Save:
		cerr << "LASH save\n";
		break;
	case LASH_Restore_Data_Set:
		cerr << "LASH restore data set\n";
		break;
	case LASH_Server_Lost:
		cerr << "LASH server lost\n";
		break;
	case LASH_Client_Remove:
		cerr << "LASH client remove\n";
		break;
	case LASH_Save_File:
		cout << "[LashDriver] LASH Save File - " << str << endl;
		_app->store_window_location();
		_app->state_manager()->save(str.append("/locations"));
		lash_send_event(_client, lash_event_new_with_type(LASH_Save_File));
		break;

	case LASH_Restore_File:
		cout << "[LashDriver] LASH Restore File - " << str << endl;
		_app->state_manager()->load(str.append("/locations"));
		_app->update_state();
		lash_send_event(_client, lash_event_new_with_type(LASH_Restore_File));
		break;

	case LASH_Save_Data_Set:
		cout << "[LashDriver] LASH Save Data Set - " << endl;
		lash_send_event(_client, lash_event_new_with_type(LASH_Save_Data_Set));
		break;

	case LASH_Quit:
		cout << "[LashDriver] Quit" << endl;
		_client = NULL;
		_app->quit();
		break;
	}
}


void
LashDriver::handle_config(lash_config_t* conf)
{
	const char*    key      = NULL;
	const void*    val      = NULL;
	size_t         val_size = 0;

	cout << "[LashDriver] LASH Config.  Key = " << key << endl;

	key      = lash_config_get_key(conf);
	val      = lash_config_get_value(conf);
	val_size = lash_config_get_value_size(conf);
}