/*
    This file is part of Furui.

    Furui 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 3 of the License, or
    (at your option) any later version.

    Furui 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 Furui.  If not, see <https://www.gnu.org/licenses/>.
*/

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include "evdev.h"

struct libevdev *furui_evdev_open(const char *path) {
	int fd;
	struct libevdev *dev;
	int err;

	fd = open(path, O_RDONLY | O_NONBLOCK);
	if (fd == -1) {
		perror("open");
		exit(EXIT_FAILURE);
	}

	dev = libevdev_new();
	if (dev == NULL) {
		perror("libevdev_new");
		exit(EXIT_FAILURE);
	}
	err = libevdev_set_fd(dev, fd);
	if (err < 0) {
		perror("libevdev_set_fd");
		exit(EXIT_FAILURE);
	}

	err = libevdev_grab(dev, LIBEVDEV_GRAB);
	if (err < 0) {
		perror("libevdev_grab");
		exit(EXIT_FAILURE);
	}

	return dev;
}

void furui_evdev_set_delay(struct libevdev *dev, int delay) {
#if 0
	if (!libevdev_has_event_type(dev, EV_REP)) {
		fprintf(stderr, "Does not have repeat capability\n");
		exit(EXIT_FAILURE);
	}
	/* XXX does not work */
	if (libevdev_set_event_value(dev, EV_REP, REP_DELAY, delay)) {
		fprintf(stderr, "Could not set repeat delay\n");
		exit(EXIT_FAILURE);
	}
#else
	int ret;
	unsigned int repeat[2];

	ret = ioctl(libevdev_get_fd(dev), EVIOCGREP, repeat);
	if (ret == -1) {
		perror("ioctl");
		fprintf(stderr, "Could not get repeat rate\n");
		exit(EXIT_FAILURE);
	}

	repeat[0] = delay;
	ret = ioctl(libevdev_get_fd(dev), EVIOCSREP, repeat);
	if (ret == -1) {
		perror("ioctl");
		fprintf(stderr, "Could not set repeat delay\n");
		exit(EXIT_FAILURE);
	}
#endif
}