#!/usr/bin/env ruby

require 'optparse'
require 'backup'

include Backup::Environment::Unix::Commands
include Backup::Environment::Unix::Helpers

options = {}

optparse = OptionParser.new do |opts|
  
  opts.banner = "\nUsage: backup [options]\n "
  
  opts.on('-r', '--run [trigger]', "Runs backup process by trigger") do |trigger|
    confirm_configuration_file_existence
    puts "Running: #{trigger}."
    Backup::Setup.new(trigger, @backup_procedures).initialize_adapter
  end
  
  opts.on('-f', '--find [trigger]', "Finds backup records by trigger") do |trigger|
    confirm_configuration_file_existence
    puts "Finding backup records with trigger: #{trigger}."
    backup = Backup::Setup.new(trigger, @backup_procedures)
    records = backup.procedure.record_class.all( :conditions => {:trigger => trigger} )

    if options[:table]
      puts Hirb::Helpers::AutoTable.render(records)
    else
      records.each do |record|
        puts record.to_yaml
      end
    end
  end
  
  opts.on('-t', '--truncate [trigger]', "Truncates backup records for specified trigger") do |trigger|
    puts "Truncating backup records with trigger: #{trigger}."
    Backup::Record::Base.destroy_all :trigger => trigger
  end
  
  opts.on('-d', '--destroy [trigger]', "Destroys backup records and files for specified trigger") do |trigger|
    confirm_configuration_file_existence
    puts "Destroying backup records with trigger: #{trigger}."
    backup = Backup::Setup.new(trigger, @backup_procedures)
    backup.procedure.record_class.destroy_all_backups( backup.procedure, trigger )
  end
  
  opts.on('--truncate-all', "Truncates all backup records") do
    puts "Truncating all backup records."
    Backup::Record::Base.destroy_all
  end

  opts.on('--destroy-all', "Destroys all backup records and files") do
    confirm_configuration_file_existence
    puts "Destroying all backup records."
    backup = Backup::Setup.new(false, @backup_procedures)
    backup.procedures.each do |backup_procedure|
      backup_procedure.record_class.destroy_all_backups( backup_procedure, backup_procedure.trigger )
    end
  end

  opts.on('--decrypt [file]', "Decrypts a \"Backup\" encrypted file") do |file|
    puts "Attempting to decrypt: #{file}."
    %x{ openssl enc -des-cbc -d -in #{file} -out #{file.gsub('.enc', '')} }
  end
  
  options[:table] = false
  opts.on('--table', "Shows records in table format") do |format|
    options[:table] = true
  end

  opts.on('--setup', "Sets up Backup") do
    setup
  end
  
  opts.on('--reset', "Reinstalls Backup (This will remove ALL current settings!)") do
    reset
  end
  
  opts.on('--remove', "Removes Backup (This will remove ALL current settings!)") do
    remove
  end
  
  opts.on('-v', '--version', 'Displays installed Backup version') do
    File.open(File.join(File.dirname(__FILE__), '..', 'VERSION')) do |file|
      puts "Backup version #{file.read}"
    end
    exit
  end  

  opts.on('-h', '--help', 'Display help screen') do
    puts opts
    puts "\n "
    exit
  end  
  
end

begin
  optparse.parse!
rescue OptionParser::InvalidOption
  puts "\nInvalid Option. See the list of available options below.\n"
  puts optparse
  puts "\n "
  exit
end