module CapistranoRecipes
  module Nginx
    def self.load_into(configuration)
      configuration.load do
        # Nginx path on server
        _cset :nginx_path, '/etc/nginx'

        # Nginx http port
        _cset :nginx_port, '80'

        # Path to local nginx vhost template
        _cset(:nginx_local_site_available_template) { "#{templates_path}/nginx.vhost.erb" }

        # Path to remote sites-available location
        _cset :nginx_remote_site_available_file, lambda { "#{nginx_path}/sites-available/#{application}" }

        # Path to remote sites-enabled location
        _cset :nginx_remote_site_enabled_link, lambda { "#{nginx_path}/sites-enabled/#{application}" }

        # Whether or not to use ssl
        _cset :use_ssl, false

        # Nginx https port
        _cset :nginx_ssl_port, '443'

        # Nginx ssl directory on server
        _cset :nginx_ssl_dir, 'ssl'

        # Nginx ssl path on server
        _cset :nginx_ssl_path, lambda { File.join nginx_path, nginx_ssl_dir }

        # Nginx ssl certificates directory on server
        _cset :nginx_ssl_certs_dir, 'certs'

        # Nginx ssl private keys directory on server
        _cset :nginx_ssl_private_dir, 'private'

        # Nginx ssl certificates path on server
        _cset :nginx_ssl_certs_path, lambda { File.join nginx_ssl_path, nginx_ssl_certs_dir }

        # Nginx ssl private keys path on server
        _cset :nginx_ssl_private_path, lambda { File.join nginx_ssl_path, nginx_ssl_private_dir }

        # Nginx ssl certificate file
        _cset :nginx_ssl_cert, lambda { "#{application}.crt" }

        # Nginx ssl key file
        _cset :nginx_ssl_key, lambda { "#{application}.key" }

        def using_ssl?
          fetch(:use_ssl)
        end

        namespace :nginx do
          desc 'Create and upload nginx vhost'
          task :setup, :roles => :web, :except => { :no_release => true } do
            upload_template nginx_local_site_available_template, nginx_remote_site_available_file
            run "#{sudo} ln -nfs #{nginx_remote_site_available_file} #{nginx_remote_site_enabled_link}"
            restart
          end
          after 'deploy:setup' do
            nginx.setup if agree?("Create and upload nginx vhost for #{application}?")
          end

          %w[start stop restart status].each do |command|
            desc "#{command.capitalize} nginx"
            task command, :roles => :app, :except => { :no_release => true } do
              run "#{sudo} service nginx #{command}"
            end
          end
        end
      end
    end
  end
end