Class: TRMNLPreview::App

Inherits:
Sinatra::Base
  • Object
show all
Defined in:
lib/trmnl_preview/app.rb

Constant Summary collapse

VIEWS =

Constants

%w{full half_horizontal half_vertical quadrant}

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ App

Returns a new instance of App.



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# File 'lib/trmnl_preview/app.rb', line 17

def initialize(*args)
  super

  @config_path = File.join(settings.user_dir, 'config.toml')
  @user_views_dir = File.join(settings.user_dir, 'views')
  @temp_dir = File.join(settings.user_dir, 'tmp')
  @data_json_path = File.join(@temp_dir, 'data.json')

  unless File.exist?(@config_path)
    puts "No config.toml found in #{settings.user_dir}"
    exit 1
  end

  unless Dir.exist?(@user_views_dir)
    puts "No views found at #{@user_views_dir}"
    exit 1
  end

  FileUtils.mkdir_p(@temp_dir)

  @config = TomlRB.load_file(@config_path)
  strategy = @config['strategy']

  unless ['polling', 'webhook'].include?(strategy)
    puts "Invalid strategy: #{strategy} (must be 'polling' or 'webhook')"
    exit 1
  end

  url = @config['url']
  polling_headers = @config['polling_headers'] || {}

  if strategy == 'polling'
    if url.nil?
      puts "URL is required for polling strategy"
      exit 1
    end

    print "Fetching #{url}... "
    payload = URI.open(url, polling_headers).read
    File.write(@data_json_path, payload)
    puts "got #{payload.size} bytes"
  end

  @liquid_environment = Liquid::Environment.build do |env|
    env.register_filter(TRMNLPreview::LiquidFilters)
  end
end