#include "list_handling.h"
#include "parse_ics.h"
#include "cli_arg_parsing.h"
#include "date_time_handling.h"
#include "string_handling.h"
#include "read_until_nl.h"
#include "read_until_string.h"
#include "seek_string_a.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <limits.h>
#include <unistd.h>

int main(int argc, char **argv) {
	char *ics_path = "";
	int show_all_events = 0;

	get_cli_args(argc, argv, &ics_path, &show_all_events);

	char my_event[8192] = "";
	char unfolded_event[8192] = "";

	int myfd = open(ics_path, O_RDONLY);
	if (myfd == -1) {
		perror ("Error opening file");
		return 1;
	}

	// initialize linked list
	struct event *head = NULL;

	static char current_date[] = "xxxxxxxxTxxxxxx";
	get_date(current_date);
	printf ("Current date and time: ");
	pretty_print_date_time(current_date);
	printf ("\n\n");

	while(read_until_nl(myfd, my_event)) {
		if (strncmp(my_event, "BEGIN:VEVENT", 12) == 0) {
			// include the BEGIN:EVENT to not loose the new line of first field
			lseek(myfd, -1, SEEK_CUR);
			memset(my_event, '\0', sizeof(my_event));
			read_until_string(myfd, my_event, "END:VEVENT");
			unfolding_string(my_event, unfolded_event);
			parse_event(unfolded_event, &head);
		}
		memset(my_event, '\0', sizeof(my_event));
	}

	print_upcoming(head, current_date, show_all_events);

	free_list(head);

	return 0;
}