/*
 *                            COPYRIGHT
 *
 *  sch-rnd - modular/flexible schematics editor - GUI
 *  Copyright (C) 2019, 2022 Tibor 'Igor2' Palinkas
 *  Copied from pcb-rnd by the original author.
 *
 *  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; if not, write to the Free Software
 *  Foundation, Inc., 31 Milk Street, # 960789 Boston, MA 02196 USA.
 *
 *  Contact:
 *    Project page: http://repo.hu/projects/pcb-rnd
 *    lead developer: http://repo.hu/projects/pcb-rnd/contact.html
 *    mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
 */

#include <libcschem/config.h>

#include <sch-rnd/conf_core.h>
#include <librnd/core/safe_fs.h>

static rnd_hidval_t infobar_timer;
static int infobar_timer_active = 0;
static double last_interval = -2;
static int infobar_gui_inited = 0;

static void infobar_check(rnd_design_t *dsg)
{
	csch_sheet_t *sheet = (csch_sheet_t *)dsg;

	if ((dsg != NULL) && (dsg->fullpath != NULL) && !sheet->saving) {
		double last_chg = rnd_file_mtime(NULL, dsg->fullpath);
		if (last_chg > sheet->infobar_last_date) {
			sheet->infobar_last_date = last_chg;
			rnd_actionva(dsg, "InfoBarFileChanged", "open", NULL);
		}
	}
}

static void pcb_infobar_brdchg_ev(rnd_design_t *hidlib, void *user_data, int argc, rnd_event_arg_t argv[])
{
	csch_sheet_t *sheet = (csch_sheet_t *)hidlib;
	rnd_actionva(hidlib, "InfoBarFileChanged", "close", NULL);
	if ((hidlib != NULL) && (hidlib->fullpath != NULL)) {
		if (sheet->infobar_last_date <= 0)
			sheet->infobar_last_date = rnd_file_mtime(NULL, hidlib->fullpath);
		infobar_check(hidlib);
	}
	else if (sheet != NULL)
		sheet->infobar_last_date = -1;
}


static void infobar_tick(rnd_hidval_t user_data)
{
	rnd_design_t *dsg = rnd_multi_get_current();

	if (conf_core.rc.file_changed_interval > 0) {
		infobar_timer = rnd_gui->add_timer(rnd_gui, infobar_tick, (conf_core.rc.file_changed_interval * 1000.0), user_data);
		last_interval = conf_core.rc.file_changed_interval;
		infobar_timer_active = 1;
	}
	else
		infobar_timer_active = 0;

	if (infobar_timer_active) { /* check for file change */
		infobar_check(dsg);

	}
}

static void pcb_infobar_update_conf(rnd_conf_native_t *cfg, int arr_idx, void *user_data)
{
	if ((!infobar_gui_inited) || (last_interval == conf_core.rc.file_changed_interval))
		return;
	if ((infobar_timer_active) && (rnd_gui != NULL) && (rnd_gui->stop_timer != NULL)) {
		rnd_gui->stop_timer(rnd_gui, infobar_timer);
		infobar_timer_active = 0;
	}
	infobar_tick(infobar_timer);
}


static void pcb_infobar_gui_init_ev(rnd_design_t *hidlib, void *user_data, int argc, rnd_event_arg_t argv[])
{
	infobar_gui_inited = 1;
	pcb_infobar_brdchg_ev(hidlib, NULL, 0, NULL); /* this may have happened ebfore plugin init if file was specified on the CLI and is already loaded - pick up file data from memory */
	if (!infobar_timer_active)
		infobar_tick(infobar_timer);
}

static void pcb_infobar_postsave_ev(rnd_design_t *hidlib, void *user_data, int argc, rnd_event_arg_t argv[])
{
	if ((hidlib != NULL) && (hidlib->fullpath != NULL)) {
		csch_sheet_t *sheet = (csch_sheet_t *)hidlib;
		sheet->infobar_last_date = rnd_file_mtime(NULL, hidlib->fullpath);
		rnd_actionva(hidlib, "InfoBarFileChanged", "close", NULL);
	}
}

static void pcb_infobar_postload_ev(rnd_design_t *hidlib, void *user_data, int argc, rnd_event_arg_t argv[])
{
	if ((hidlib != NULL) && (hidlib->fullpath != NULL)) {
		csch_sheet_t *sheet = (csch_sheet_t *)hidlib;
		sheet->infobar_last_date = rnd_file_mtime(NULL, hidlib->fullpath);
		rnd_actionva(hidlib, "InfoBarFileChanged", "close", NULL);
	}
}

