module SupCom2ReplayParser

# File lib/supcom2_replay_parser.rb, line 11
def call(filepath)
  raise Exception, "Allowed only files with extension #{ALLOWED_EXTENSION}" unless allow_file_extension?(filepath)

  replay_info = {}

  file_lines = File.new(filepath, encoding: 'ISO-8859-1:UTF-8')

  file_lines.each do |line|
    current_line = file_lines.lineno

    if current_line == 1
      replay_info[:game_version] = line.sub(/[[:cntrl:]]/, '').chomp
    end

    if current_line == 2
      replay_info[:replay_version] = line.sub(/[[:cntrl:]]/, '').chomp
    end

    if current_line == 4 || current_line == 5
      next if !has_line_full_needed_data?(line) && current_line == 4

      raise Exception, 'Replay is broken' unless has_line_full_needed_data?(line)

      replay_info.merge!({
        players_info: PlayersInfo.call(line),
        game_options: GameOptions.call(line)
      })

      break
    end
  end

  raise Exception, 'Replay is broken' if replay_info.empty?

  replay_info
end

# File lib/supcom2_replay_parser.rb, line 54
def allow_file_extension?(file)
  File.extname(file) == ALLOWED_EXTENSION
end

# File lib/supcom2_replay_parser.rb, line 50
def has_line_full_needed_data?(line)
  line.match?(/(#{GameOptions::FIELDS.join('|')})/)
end