# desc "Explaining what the task does"
namespace :epaper do 
	task :send_email, [:paper_criteria_id, :domain, :locale] => :environment do |task,args|
    paper = PaperCriteria.find(args[:paper_criteria_id]) rescue nil
		page = Page.where(:module => "e_paper").first.url rescue ""
		papers_data = Admin::EpaperHelper.get_paper_data(paper)
		domain = args[:domain]
		if !paper.nil?
			email_format = /^[A-Za-z0-9+_.-]+@[A-Za-z0-9.-]+$/
			subscribers = EPaperSubscriber.where(:language.in=>paper.language_to_send,:email.nin=>['',nil])
			subscribers.update_all(:last_paper_sent => paper.id.to_s)
			emails = subscribers.collect(&:email)
			site = Site.first
			email_limit_reciever = site[:site_settings][:email_limit_reciever].to_i rescue 0
			mail_limit = email_limit_reciever==0 ? 25 : email_limit_reciever
			emails += paper.other_emails_ids
			emails_valid = emails.select do |email|
				tmp = (email_format=~email)
				tmp==0 ? true : false
			end
			emails_invalid = emails - emails_valid
			paper.send_failed_emails = []
			Thread.new do
				tmp = []
				emails_valid.each_slice(mail_limit).each do |slice_emails|
					email = Email.new(:mail_subject => paper.sending_title, :mail_lang => args[:locale], :template => "admin/e_paper_criterias/emailer", :template_data => {"paper_id" => paper.id, "page" => "http://" + domain + page, "siteurl" => "http://" + domain, "papers_data" => papers_data }, :mail_to => slice_emails.join(","))
					begin
						email.save
						email.deliver
						puts "Sending #{slice_emails.count} emails"
					rescue => e
						puts [slice_emails.inspect,e,e.backtrace]
						tmp += slice_emails
					end
				end
				paper.update_attributes(:send_failed_emails => tmp)
			end
			paper.invalid_emails = emails_invalid
			paper.save
		end
	end
end