# frozen_string_literal: true

require "commander"

class CreateSlidevPresentation
  EXAMPLE_SLIDES_URL = "https://raw.githubusercontent.com/renuo/slidev-theme-renuo/main/example.md"
  SLIDEV_THEME_NAME = "renuo"
  TEMPLATE_DIRECTORY = "templates/slidev"

  attr_accessor :presentation_name, :presentation_author

  def initialize
    @presentation_name = nil
    @presentation_author = nil
  end

  def run(args)
    presentation_name = args[0]
    abort(">> No presentation name given.") unless presentation_name

    say "# Commands to setup Slidev project with the Renuo theme:".colorize :green
    @presentation_name = presentation_name
    @presentation_author = args[1] || "Renuo AG"
    print_slidev_project_commands
  end

  private

  def print_slidev_project_commands
    say "mkdir #{@presentation_name}"
    say "cd #{@presentation_name}"
    say "curl -o slides.md #{EXAMPLE_SLIDES_URL}"
    say "echo '#{render("README.md.erb")}' > README.md"
    say "sed -ig 's/theme: .\\//theme: renuo/' slides.md"
    say "echo '#{render("package.json.erb")}' > package.json"
    say "npm install"
    say "npm run dev"
  end

  def render(filename)
    file_path = File.join(File.dirname(__FILE__), TEMPLATE_DIRECTORY, filename)
    template = File.read(file_path)
    renderer = ERB.new(template)
    renderer.result(binding)
  end
end