#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

#include "options.h"
#include "baud.h"
#include "debug.h"
#include "data.h"

int main(int argc, char *argv[])
{
	struct plotter_options options;
	int fd, baud, ret = 0, out_fd = 0;

	if (read_args(argc, argv, &options))
		return 1;

	baud = options.baud_rate;
	fd = open_at_baud(options.device_path, &baud);
	if (fd < 0)
		return 1;

	if (baud != options.baud_rate) {
		pr_err("Failed to set baudrate to %d, only got %d\n",
			options.baud_rate, baud);
		ret = 1;
		goto out;
	}

	if (options.output_path) {
		pr_debug("Opening %s for writing the log file\n",
			options.output_path);

		out_fd = open(options.output_path,
			O_CREAT | O_APPEND | O_WRONLY, 0664);
		if (out_fd < 0) {
			pr_err("Failed to open file %s for writing: %m\n",
				options.output_path);
			ret = 1;
			goto out;
		}
	}

	read_data(fd, out_fd);

out:
	close(fd);
	return ret;
}