class App::ChangeRole < LuckyCli::Task
  def initialize(@quiet : Bool = false)
  end

  summary "Change a user's role"

  getter io : IO = STDOUT

  def call(@io : IO = STDOUT)
    if username_is_present
      user = get_user

      if user.nil?
        io.puts @error.colorize(:red)
      else
        role = ask_role

        if role.nil?
          io.puts @error.colorize(:red)
        else
          ChangeUserRole.update!(user, primary_role_id: role.id)

          io.puts "#{user.name.colorize(:green)}'s role set to #{role.name.colorize(:green)} (#{role.description.colorize(:green)})"
        end
      end
    else
      io.puts @error.colorize(:red)
    end
  end

  def help_message
    <<-TEXT
    #{summary}

    Example:

      lucky app.change_role username
    TEXT
  end

  private def ask_role
    roles = RoleQuery.new

    io.puts "Choose a role:\n".colorize.bold

    roles.each do |role|
      io.puts "[#{role.id}] #{role.name} (#{role.description})"
    end

    io.print "\nRole number: ".colorize.bold
    input = io.gets

    if input.nil?
      @error = "No role number entered"
      nil
    else
      role_id = input.to_i { -1 }
      @error = "No role with number #{input}"
      roles.id(role_id).first?
    end
  end

  private def get_user
    @error = "User '#{ARGV.first}' not found"
    user = UserQuery.new.name(ARGV.first).first?
  end

  private def username_is_present
    @error = "Username is required. Example: lucky app.change_role john"
    ARGV.first?
  end
end