#!/usr/bin/ruby
#
# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
#
# Copyright (c) 2012 BigBlueButton Inc. and by respective authors (see below).
#
# This program is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free Software
# Foundation; either version 3.0 of the License, or (at your option) any later
# version.
#
# BigBlueButton is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
#
require "rubygems"
require "fileutils"
require "redis"

PUBLISHED_DIR="/var/bigbluebutton/published"
UNPUBLISHED_DIR="/var/bigbluebutton/unpublished"
DELETED_DIR="/var/bigbluebutton/deleted"
RECORDING_DIR="/var/bigbluebutton/recording"



def cleanProcessedFiles(path)
  redis=Redis.new
  # get the pastday
  pastday=Time.new-(3600*24)
  puts "Cleaning out conferences before #{pastday}"

  (Dir.entries(path) - ['.','..']).each do
  |playback|
    (Dir.entries(path+"/#{playback}") - ['.','..']).each do
    |meeting|

      modtime = File.mtime(path+"/#{playback}/#{meeting}")
      dif=modtime <=> pastday
      # 1 represents all the recording upto the pastday
      if dif != 1
        puts "Meeting: #{meeting}"
        #Deleting Processed Dir
        puts "Checking record and ingest directories..."

        puts "Deleting *.done files..."
        FileUtils.rm_rf RECORDING_DIR+"/status/recorded/#{meeting}.done"
        FileUtils.rm_rf RECORDING_DIR+"/status/archived/#{meeting}.done"
        FileUtils.rm_rf RECORDING_DIR+"/status/processed/#{meeting}-#{playback}.done"

        puts "Deleting processed directories..."
        if(File.directory?(RECORDING_DIR+"/process/#{playback}/#{meeting}"))
          FileUtils.rm_rf RECORDING_DIR+"/process/#{playback}/#{meeting}"
        end
        if(File.directory?(RECORDING_DIR+"/publish/#{playback}/#{meeting}"))
          FileUtils.rm_rf RECORDING_DIR+"/publish/#{playback}/#{meeting}"
        end

        #Deleting Redis Keys
        puts "Checking redis keys..."
        if( redis.exists("meeting:#{meeting}:recordings"))
          len= redis.llen("meeting:#{meeting}:recordings")
          range= redis.lrange("meeting:#{meeting}:recordings",0,len)
          range.each do
          |msgid|
            redis.del("recording:#{meeting}:#{msgid}")
          end
          puts "Deleting Redis Keys for #{meeting}"
          redis.del("meeting:#{meeting}:recordings")
        end
      end

    end

  end

end

cleanProcessedFiles(PUBLISHED_DIR)
cleanProcessedFiles(UNPUBLISHED_DIR)

#def clean_presentation_dependents(recording_dir)
#  # clean workspace so the formats that depend on the presentation format to be
#  # published will run
#  [ "presentation_export" ].each do |dependent_format|
#    presentation_published_done_files = Dir.glob("#{recording_dir}/status/published/*-presentation.done")
#    presentation_published_done_files.each do |published_done|
#      match = /([^\/]*)-([^\/-]*).done$/.match(published_done)
#      meeting_id = match[1]
#      process_type = match[2]
#      processed_fail = "#{recording_dir}/status/processed/#{meeting_id}-#{dependent_format}.fail"
#      if File.exists? processed_fail
#        BigBlueButton.logger.info "Removing #{processed_fail} so #{dependent_format} can execute in the next run of rap-worker"
#        FileUtils.rm processed_fail
#      end
#    end
#  end
#end