class FeedsController < ApplicationController
	skip_before_action :verify_authenticity_token
	def notify_change
		feed = SiteFeed.where(:feed_uid=>params[:uid]).first
		feed_annc = SiteFeedAnnc.where(:feed_id=>feed.id).first
		if feed_annc
			locales = Site.first.in_use_locales rescue I18n.available_locales
			site_root_url = Site.first.root_url rescue ""
			main_directory = File.join("#{Rails.root}","public","site_feeds")
			feed_directory = File.join(main_directory.to_s, feed.id.to_s)
			feed_data = JSON.parse(File.read(File.join(feed_directory.to_s, feed.feed_uid + ".json")))
			channel_key_pluralize = feed_annc.channel_key.pluralize
			if params[:type] == 'create'
				locales.each do |locale|
					trans = {}
					locale = locale.to_s
					trans[locale] = {}
					I18n.with_locale(locale) do
						trans[locale]['top'] = I18n.t(:top)
						trans[locale]['hot'] = I18n.t(:hot)
						trans[locale]['more_plus'] = I18n.t("feed.more")
					end
					locale_sym = locale.to_sym
					params[:data].each do |a|
						a = JSON.parse(a)
						postdate = Time.parse(a["postdate"])
						insert_idx = 0
						if postdate
							insert_idx = feed_annc[:all_contents_for_feed][locale_sym].index{|aa| aa["postdate"] <= postdate}
							insert_idx = 0 if insert_idx.nil?
						end
						feed_annc.all_contents_for_feed_will_change!
						feed_annc[:all_contents_for_feed][locale_sym].insert(insert_idx, feed_annc.process_tmp(a,locale,trans,site_root_url))
						feed_data[channel_key_pluralize].insert(insert_idx, a)
					end
				end
				feed_annc.instance_variable_set(:@skip_callback, true)
				feed_annc.save!
			elsif params[:type] == 'update'
				locales.each do |locale|
					trans = {}
					locale = locale.to_s
					trans[locale] = {}
					I18n.with_locale(locale) do
						trans[locale]['top'] = I18n.t(:top)
						trans[locale]['hot'] = I18n.t(:hot)
						trans[locale]['more_plus'] = I18n.t("feed.more")
					end
					locale_sym = locale.to_sym
					params[:data].each do |a|
						a = JSON.parse(a)
						feed_annc[:all_contents_for_feed][locale_sym].each_with_index do |aa, i|
							if aa["id"] == a["id"]
								feed_annc.all_contents_for_feed_will_change!
								feed_annc[:all_contents_for_feed][locale_sym][i] = feed_annc.process_tmp(a,locale,trans,site_root_url)
								feed_data[channel_key_pluralize][i] = a
								break
							end
						end
					end
				end
				feed_annc.instance_variable_set(:@skip_callback, true)
				feed_annc.save!
			elsif params[:type] == 'destroy'
				locales.each do |locale|
					locale_sym = locale.to_sym
					feed_annc.all_contents_for_feed_will_change!
					feed_annc[:all_contents_for_feed][locale_sym].reject!{|a| params[:data].include?(a["id"]) }
					feed_data[channel_key_pluralize].reject!{|a| params[:data].include?(a["id"]) }
				end
				feed_annc.instance_variable_set(:@skip_callback, true)
				feed_annc.save!
			end
			feed_data = feed_data.to_json
			FileUtils.mkdir_p(feed_directory) if !File.exists?(feed_directory)
			File.open(File.join(feed_directory.to_s,feed.feed_uid + ".json"),"w") do |file|
				feed_data.force_encoding("utf-8")
				file.write(feed_data)
			end
		end
		render :json => {success: true}
	end
end