require 'yaml'

module MissingTranslation

  class Configuration
    attr_accessor :config
    FILE_NAME = "missing_translation.yml"

    def self.file_exists?
      File.exist?(FILE_NAME)
    end

    def self.create_file
      File.open(FILE_NAME, 'w+') do |f|
        f.flock(File::LOCK_EX)
        f.rewind
        f.write({ key: nil, locale_prefix: true }.to_yaml)
        f.flush
      end
    end

    def self.write_config(config)
      File.open(FILE_NAME, "w+") do |f|
        f.flock(File::LOCK_EX)
        f.truncate(0)
        f.write(config.to_hash.to_yaml)
        f.flush
      end
    end

    def initialize
      @file = File.open(FILE_NAME)
      unless @file
        puts "Configuration file does not exist"
        return
      end
      @config = (YAML.load(@file.read) || { key: nil })
    end

    def update_key(key)
      @config[:key] = key
      self.class.write_config(@config)
    end

  end

end