helper

#!/usr/bin/env ruby
# vim: set ft=rb

require 'pathname'
require_relative './lib/helpers.rb'

def usage
  puts "Usage -> helper [command] [input-file]?"
  puts
  puts "Optional commands: "
  usage_command("current",          "c",  "Show current problem")
  usage_command("current-input",    "ci", "Show current problem input file")
  usage_command("current-example",  "ce", "Show current problem example file")
  usage_command("next",             "n",  "Show next problem")
  usage_command("repl",             "r",  "Run repl with optional input file")
  usage_command("input",            "i",  "Download input file")
  usage_command("day",              "d",  "Create file for next problem")
  usage_command("create",           "cr", "Create file for next problem")
  usage_command("example",          "e",  "Paste example to current problem file")
  usage_command("help",             "h",  "Show this message")
end

def usage_command(name, short, message)
  puts "  - #{name.ljust(16)} #{"(#{short})".ljust(4)} #{message}"
end

case ARGV[0]
when "current", "c"
  puts Problem.current.to_s
when "open", "code", "o"
  Problem.current.code
when "current-input", "ci"
  puts Problem.current.input_file
when "current-example", "ce"
  puts Problem.current.example_file
when "next", "n"
  puts Problem.next.to_s
when "repl", "r"
  Repl.run(ARGV[1..])
when "input", "i"
  Problem.current.download_input
when "day", "d", "create", "cr"
  Problem.next.create_file
when "example", "e"
  Problem.current.paste_example
when "help", "h", nil
  usage
else
  puts "Error: invalid argument #{ARGV.join(" ")}"
  usage
end