class Gladys::Help

def self.message
  scripts_documentation
  puts "\n"
  puts "See: https://github.com/heroku/gladys for more information or to contribute."
end

def self.script_example_command(script)
  if script.option_sets.any?
    "gladys prepare #{script.script_name} --database-url <database-url> --option-set <option-set>"
  else
    "gladys prepare #{script.script_name} --database-url <database-url>"
  end
end

def self.script_option_set_documentation(script)
  return unless script.option_sets.any?
  puts "\n"
  puts "Available option-sets:"
  script.option_sets.each do |option_set|
    puts "  #{option_set.name}:\t#{option_set.describe}\n"
  end
end

def self.scripts_documentation
  puts "The following scripts are available:"
  Gladys::Script.all.each do |script|
    puts "\n[#{script.name}]"
    puts script.describe
    script_option_set_documentation(script)
    puts "\nThis script can be run with the following command:"
    puts "\n\t$ #{script_example_command(script)}"
  end
end