module Inesita
  class CLI < Thor
    include Thor::Actions

    check_unknown_options!

    namespace :build

    desc 'build [OPTIONS]', 'Build Inesita app'

    method_option :force,
                  aliases: :f,
                  type: :boolean,
                  default: false,
                  desc: 'force overwrite'

    method_option :destination_dir,
                  aliases: :d,
                  type: :string,
                  default: Inesita::Config::BUILD_DIR,
                  desc: 'destination directory'

    method_option :source_dir,
                  aliases: :s,
                  type: :string,
                  default: Inesita::Config::APP_DIR,
                  desc: 'source (app) dir'

    method_option :static_dir,
                  aliases: :t,
                  type: :string,
                  default: Inesita::Config::STATIC_DIR,
                  desc: 'static dir'

    def build
      empty_directory options[:destination_dir], force: options[:force]
      generate_files
      copy_static
    end

  no_commands do
    def generate_files
      rack = Rack::Server.new(config: 'config.ru', Port: options['port'], Host: options['host'])
      builder = Inesita::Builder.new(app: rack.app, destination_dir: options[:destination_dir])

      [
        '/index.html',
        Inesita.assets_code.match(/src="([^\"]*?)[?"]/)[1]
      ].each do |url|
          create_file File.join(options[:destination_dir], url),
            builder.fetch(url),
            force: options[:force]
        end
      end

      def copy_static
        destination_dir = options[:destination_dir]
        force = options[:force]
        static_dir = options[:static_dir]

        Dir.glob("./#{static_dir}/**/*").each do |file|
          if File.directory?(file)
            empty_directory File.join(destination_dir, file), force: force
          else
            copy_file File.absolute_path(file), File.join(destination_dir, file.gsub(static_dir, 'static')), force: force
          end
        end
      end
    end
  end
end