// Capistano Deployment Recipe
//////////////////////////////

# == Common Settings ========================================================

default_run_options[:pty] = true

set :application, "dates_facebook"

set :scm, "git"
set :repository, "git@github.com:johnantoni/dates.git"
set :branch, "facebook"
set :deploy_via, :remote_cache

set :user, "deploy"
set :keep_releases, 3

# == Tasks ==================================================================

task :production do
  set :application, "dates_facebook"
  set :rails_env, "production"
  set :domain, "linode.red91.com"

  ssh_options[:keys] = [File.join(ENV["HOME"], ".ssh", "linode")] 
  ssh_options[:port] = 22

  role :web, domain
  role :app, domain
  role :db, domain, :primary => true
  
  set :deploy_to, "/web/#{application}"
  
  namespace :deploy do
    desc "Restarting mod_rails with restart.txt"
    task :restart, :roles => :app, :except => { :no_release => true } do
      run "touch #{release_path}/tmp/restart.txt"
    end
    
    [ :start, :stop ].each do |t|
      desc "#{t} task is a no-op with mod_rails"
      task t, :roles => :app do ; end
    end
  end
end

namespace :deploy do
  task :symlink_files, :roles => :app, :except => { :no_symlink => true } do
    run <<-CMD
      cd #{release_path} &&
      cp config/database-#{rails_env}.yml config/database.yml &&
      cp config/memcached-#{rails_env}.yml config/memcached.yml
    CMD
  end
end

desc "Generate a maintenance.html to disable requests to the application."
deploy.web.task :disable, :roles => :web do
  disable_template = "./app/views/layouts/maintenance.rhtml"
  remote_path = "#{shared_path}/system/maintenance.html"
  on_rollback { run "rm #{remote_path}" }
  template = File.read(disable_template)
  deadline, reason = ENV["UNTIL"], ENV["REASON"]
  maintenance = ERB.new(template).result(binding)
  put maintenance, "#{remote_path}", :mode => 0644
end

after "deploy:update_code", "deploy:symlink_files"

// Sample Methods
/////////////////

def patch_uploads(file)
  # uploads < 20k are stringio streams
  if file.kind_of? StringIO
    file.rewind
    realFile = Tempfile.new(file.original_filename)
    while not file.eof?
      realFile.write file.read
    end
  else
    realFile = file
  end
  return realFile
end

class Hash
  def paginate_hash(id)
    return self.flatten_values.simply_paginate_array(id)
  end

  def flatten
    to_a.flatten!
  end

  def flatten_values
    a = Array.new
    self.each {|k,v| a.push(v) }
    return a
  end
end