newday

#!/usr/bin/env ruby

#
# Usage: newday DAY SESSION [YEAR]
#
# - DAY is the puzzle day number (0 - 25)
# - SESSION is your advent of code browser session id
# - YEAR is the AoC year (4 digits)
#

raise "Missing day" unless ARGV[0] =~ /[0-9]+/
day = ARGV[0]
raise "Missing session" unless ARGV[1] =~ /[a-z0-9]+/
session = ARGV[1]
year = ARGV[2] || (Time.now.year - (Time.now.month < 12 ? 1 : 0)).to_s

dayname = "day" + day.to_s.rjust(2, '0')

unless File.exist?(File.join("puzzle", "#{dayname}.md"))
  `./fetch_puzzle #{day} #{session} #{year} > puzzle/#{dayname}.md`
end
unless File.exist?(File.join("input", "#{dayname}.txt"))
  `./fetch_input #{day} #{session} #{year} > input/#{dayname}.txt`
end
unless File.exist?(File.join("src", "days", "#{dayname}.rs"))
  template = <<-EOF
use crate::{Solution, SolutionPair};

fn solve_part1(input: &str) -> () {
    unimplemented!()
}

fn solve_part2(input: &str) -> () {
    unimplemented!()
}

pub fn solve(input: String) -> SolutionPair {
  let sol1 = solve_part1(&input);
  let sol2 = solve_part2(&input);
  (Solution::from(sol1), Solution::from(sol2))
}

#[cfg(test)]
mod tests {
  use super::*;

  const EXAMPLE_INPUT: &str = "";

  #[test]
  fn example_part1() {
    unimplemented!()
    //assert_eq!(solve_part1(EXAMPLE_INPUT), ());
  }

  #[test]
  fn example_part2() {
    unimplemented!()
    //assert_eq!(solve_part2(EXAMPLE_INPUT), ());
  }
}
EOF
  File.open(File.join("src", "days", "#{dayname}.rs"), "w") do |f|
    f.puts template
  end
end