DannyBen/madman

module Madman
  module Commands
    class Render < MisterBin::Command
      include Colsole

      help 'Render markdown or YAML to HTML'

      usage 'madman render FILE [--github --save OUTFILE]'
      usage 'madman render (-h|--help)'

      option '--github', "Render using the GitHub API\nRequires setting the GITHUB_ACCESS_TOKEN environment variable"
      option '--save OUTFILE', 'Save the output to a file'

      param 'FILE', 'The input markdown or YAML file'

      environment 'GITHUB_ACCESS_TOKEN', "Your GitHub API access token\nGenerate one here: https://github.com/settings/tokens"

      example 'madman render README.md'
      example 'madman render README.md --github'
      example 'madman render README.md --save out.html'
      example 'madman render file.yml --save out.html'

      def run
        infile = args['FILE']
        outfile = args['--save']
        renderer = args['--github'] ? :github : :default

        doc = Madman::Document.from_file infile

        output = doc.render renderer

        if outfile
          File.write outfile, output
          say "Saved g`#{outfile}`"
        else
          puts output
        end
      end
    end
  end
end