/**
 * Dailyjournal is an easy tool to log daily activities
 * Copyright (C) 2022  Aaron Ball <nullspoon@oper.io>
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
#define _XOPEN_SOURCE
#include <stdio.h>

#include "common.h"
#include "config.h"

int main(int argc, char* argv[]) {
  char notepath[256]     = {'\0'};
  int i = 0;
  struct config c;

  memset(&c, sizeof(struct config), 1);
  config_init(&c);

  int days = 0;
  if(argc > 1)
    days = strtol(argv[1], NULL, 10);

  // If user requests negative days, we want to skip non-existant days. So `-2`
  // is really "two entries ago" rather than two days ago, which could yield
  // creating an empty historical note if one does not already exist (for
  // example: on Monday, opening Friday's entry which is -3 days, but -1
  // entry).
  if(days < 0) {
    while(days < 0) {
      i--;
      getpath(c.journaldir, i, notepath, c.extension);
      if(fexists(notepath))
        days++;
      // Stop traversing after a year to avoid infinite loops when no notes
      // exist (or exist very long ago)
      if(i < -365) {
        fprintf(stderr, "Refusing to search further back than one year\n");
        return 1;
      }
    }
  } else {
    getpath(c.journaldir, days, notepath, c.extension);
  }

  if(safe_cp(c.templatepath, notepath) == -2) {
    printf("No template found at %s\n", c.templatepath);
    return 2;
  }
  return fedit(notepath);
}