# encoding: utf-8

usage 'autocompile [options]'
summary 'start the autocompiler'
be_hidden
aliases :aco
description <<-EOS
Start the autocompiler web server. Unless overridden with commandline 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