require 'negroku/helpers/templates'

## eye.rb
#
# Adds eye variables and tasks

namespace :load do
  task :defaults do
    ###################################
    ## eye template variables

    # Local path to look for custom config template
    set :eye_application_template, -> { "config/deploy/#{fetch(:stage)}/eye.rb.erb" }

    # Add eye to :rbenv_map_bins
    fetch(:rbenv_map_bins) << 'eye'
  end
end


namespace :eye do

  desc "Loads eye config and starts monitoring"
  task :load do
    on release_roles fetch(:eye_roles) do
      within "#{current_path}" do
       execute :eye, :load, "#{shared_path}/config/eye.rb"
      end
    end
  end

  [:start,:restart, :info, :stop].each do |cmd|
      # Single process
    desc "Calls eye's #{cmd.to_s} on a process"
    task "#{cmd}:process", [:name] do |t, args|
      on release_roles fetch(:eye_roles) do
        within "#{current_path}" do
          execute :eye, cmd, "#{args[:name]}"
        end
      end
    end
    #
    desc "Calls eye's #{cmd.to_s} on the whole app"
    task cmd do |t, args|
      on release_roles fetch(:eye_roles) do
        within "#{current_path}" do
          execute :eye, cmd, "#{fetch(:application)}"
        end
      end
    end
  end
end

# Adds some task on complement the capistrano3-unicorn tasks
# This tasks are under the negroku namespace for easier identification
namespace :negroku do

  namespace :eye do

    desc "Upload eye configuration file"
    task :setup do
      on release_roles fetch(:eye_roles) do
        within "#{shared_path}/config" do
          processes = fetch(:eye_watched_processes, {})

          template_path = fetch(:eye_application_template)

          # use a build in template if the template doesn't exists in the project
          unless File.exists?(template_path)
            template_path = "tasks/eye/application.eye.erb"
          end

          config = build_template(template_path, nil, binding)
          upload! config, '/tmp/application.eye'

          execute :mv, '/tmp/application.eye', 'eye.rb'
        end
      end
    end

    after "deploy:published", "negroku:eye:setup"
    after "negroku:eye:setup", "eye:load"

    define_logs(:eye, {
      app: 'eye.log'
    })

  end

end