bcdice_txt_to_toml.rb

require "strscan"
p ARGV

files = Dir[ARGV[0]]
p files

def dump(class_name, data)
  ret = ""
  ret += "[[ test ]]\n"
  ret += "game_system = #{class_name.inspect}\n"
  ret += "input = #{data[:input].inspect}\n"
  ret += "output = #{data[:expected].inspect}\n"
  ret += "secret = true\n" if data[:secret]
  ret += "rands = #{data[:rands]}\n"

  return ret
end

def format_rands(rands)
  if rands.nil? || rands.empty?
    return "[]"
  end

  body = rands.map { |r| "  { sides = #{r[1]}, value = #{r[0]} }," }.join("\n")
  return ["[", body, "]"].join("\n")
end

def parse(source)
  scanner = StringScanner.new(source)
  scanner.scan(/input:\n/)
  input = scanner.scan_until(/output:/).delete_suffix("output:").strip
  output = scanner.scan_until(/rand:/).delete_suffix("rand:").strip
  rands = scanner.scan(/\d+\/\d+(, \d+\/\d+)/)

  rands = rands&.split(", ")&.map {|x| x.split("/").map(&:to_i)} || []

  {
    input: input.chomp,
    expected: output.sub(/#+secret dice#+/, ""),
    secret: output.match?(/#+secret dice#+/),
    rands: format_rands(rands)
  }
end

files.each do |path|
  class_name = File.basename(path, ".txt")
  source = File.read(path)

  dataSetSources = source
                   .gsub("\r\n", "\n")
                   .tr("\r", "\n")
                   .split("============================\n")
                   .map(&:chomp)

  toml = dataSetSources.map do |dataSetSource|
    data = parse(dataSetSource)
    out = dump(class_name, data)
  end

  puts toml.join("\n")
end