#include "cli_arg_parsing.h"
#include "date_time_handling.h"
#include "list_handling.h"
#include "cut_string.h"
#include "move_lines.h"
#include "read_until_nl.h"
#include "read_until_string.h"
#include "seek_string_a.h"
#include "remove_whitespace.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <limits.h>

int main(int argc, char **argv) {
  char *ics_path = "";
  get_cli_args(argc, argv, &ics_path);

	char my_line[4096] = "";

	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");

	char start_date[256] = "";
	char end_date[256] = "";
	char summary[256] = "";

	while(read_until_nl(myfd, my_line)) {
		if (strncmp(my_line, "BEGIN:VEVENT", 12) == 0) {
			memset(my_line, '\0', sizeof(my_line));
			// put DTSTART into variable
			seek_string_a(myfd, "DTSTART");
			read_until_string(myfd, my_line, "DTEND");
			remove_whitespace(my_line);
			cut_string(my_line, ':', 1);
			strcpy(start_date, my_line);

			memset(my_line, '\0', sizeof(my_line));

			// put DTEND into variable
			read_until_string(myfd, my_line, "SEQUENCE");
			remove_whitespace(my_line);
			cut_string(my_line, ':', 1);
			strcpy(end_date, my_line);

			memset(my_line, '\0', sizeof(my_line));

			// put summary into variable
			seek_string_a(myfd, "SUMMARY:");
			read_until_string(myfd, my_line, "TRANSP:");
			remove_nl_and_cr(my_line);
			strcpy(summary, my_line);
			memset(my_line, '\0', sizeof(my_line));

			sorted_insert(&head, start_date, end_date, summary);
			memset(start_date, '\0', sizeof(start_date));
			memset(end_date, '\0', sizeof(end_date));
			memset(summary, '\0', sizeof(summary));
		}
		memset(my_line, '\0', sizeof(my_line));
	}

	print_upcoming(head, current_date);

	free_list(head);

	return 0;
}