# encoding: utf-8

usage 'autocompile [options]'
summary 'start the autocompiler'
be_hidden
aliases :aco
description <<-EOS
Start the autocompiler web server. Unless overridden with command-line options
or configuration entries, the web server will run on port 3000 and listen on all
IP addresses. Running the autocompiler requires the `mime/types` and `rack` gems.

To specify the host, port, and/or handler options in config.yaml, you can add
any of the following:

    autocompile:
      host: '10.0.2.0'  # override the default host
      port: 4000        # override the default port
      handler: thin     # override the default handler

EOS

required :H, :handler, 'specify the handler to use (webrick/mongrel/…)'
required :o, :host,    'specify the host to listen on (default: 0.0.0.0)'
required :p, :port,    'specify the port to listen on (default: 3000)'

module Nanoc::CLI::Commands
  class AutoCompile < ::Nanoc::CLI::CommandRunner
    def run
      warn 'WARNING: The `autocompile` command is deprecated. Please consider using `guard-nanoc` instead (see https://github.com/nanoc/guard-nanoc).'

      require 'rack'

      # Make sure we are in a nanoc site directory
      require_site
      autocompile_config = site.config[:autocompile] || {}

      # Set options
      options_for_rack = {
        Port: (options[:port] || autocompile_config[:port] || 3000).to_i,
        Host: (options[:host] || autocompile_config[:host] || '0.0.0.0')
      }

      # Guess which handler we should use
      handler_option = options[:handler] || autocompile_config[:handler]
      handler = Rack::Handler.get(handler_option)
      unless handler
        begin
          handler = Rack::Handler::Mongrel
        rescue LoadError
          handler = Rack::Handler::WEBrick
        end
      end

      # Build app
      autocompiler = Nanoc::Extra::AutoCompiler.new('.')
      app = Rack::Builder.new do
        use Rack::CommonLogger, $stderr
        use Rack::ShowExceptions
        run autocompiler
      end.to_app

      # Run autocompiler
      puts "Running on http://#{options_for_rack[:Host]}:#{options_for_rack[:Port]}/"
      handler.run(app, options_for_rack)
    end
  end
end

runner Nanoc::CLI::Commands::AutoCompile