## some basic tasks
require 'palmtree/recipes/mongrel_cluster'

# == RUBY GEMS =================================================================
namespace :ruby_gems  do
  desc "Updates RubyGems version"
  task :update_system do
    sudo "gem update --system"
  end

  desc "Install a RubyGem from remote source"
  task :install do
    puts "USAGE: GEM=gemname cap gems_install" and next unless ENV['GEM']
    sudo "gem install #{ENV['GEM']} --no-ri --no-rdoc"
  end
end


# == NGINX =====================================================================
namespace :nginx do
  desc "Start Nginx on the app server."
  task :start, :roles => :app do
    sudo "/etc/init.d/nginx start"
  end

  desc "Restart the Nginx processes on the app server by starting and stopping the cluster."
  task :restart , :roles => :app do
    sudo "/etc/init.d/nginx restart"
  end

  desc "Stop the Nginx processes on the app server."
  task :stop , :roles => :app do
    sudo "/etc/init.d/nginx stop"
  end
end

# == BACKGROUNDRB ==============================================================
namespace :drb do
  desc 'Start backgroundrb'
  task :start, :roles => :app do
    run "#{current_path}/script/backgroundrb start"
  end

  desc 'Stop backgroundrb'
  task :stop, :roles => :app do
    run "#{current_path}/script/backgroundrb stop"
  end

  desc 'Restart backgroundrb'
  task :restart, :roles => :app do
    stop
    start
  end

end

# == MONGREL ===================================================================
namespace :deploy do
  desc "Start mongrel cluster"
  task :start, :roles => :app do
    run  "cd #{current_path} && sudo mongrel_rails cluster::start"
  end

  desc "Stop mongrel cluster"
  task :stop, :roles => :app do
    run  "cd #{current_path} && sudo mongrel_rails cluster::stop"
  end

  desc "Restart mongrel cluster"
  task :restart, :roles => :app do
    run  "cd #{current_path} && sudo mongrel_rails cluster::restart"
  end
end

# == CONFIG ====================================================================
namespace :init do
  namespace :config do
    desc "Create database.yml"
    task :database do
      set :db_host, Capistrano::CLI.ui.ask("database host: ")
      set :db_user, Capistrano::CLI.ui.ask("database user: ")
      set :db_pass, Capistrano::CLI.password_prompt("database password: ")
      database_configuration =<<-EOF
---

production:
  adapter: mysql
  database: #{application}
  host: #{db_host}
  username: #{db_user}
  password: #{db_pass}
EOF
      run "mkdir -p #{shared_path}/config"
      put database_configuration, "#{shared_path}/config/database.yml"
    end


    desc "Symlink shared configurations to current"
    task :localize, :roles => [:app] do
      %w[memcached.yml mongrel_cluster.yml gateway.yml amazon_s3.yml amazon_sqs.yml database.yml backgroundrb.yml].each do |f|
        run "rm -f #{current_path}/config/#{f}"
        run "ln -nsf #{shared_path}/config/#{f} #{current_path}/config/#{f}"
      end
    end
  end
end