#
# Copyright (C) 2007 Mobio Networks, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

=begin
This module manages yaml-based configuration sets. Uses some logic from the
rfacebook gem.
=end
module Rmobio
  module ConfigManager
    if defined? RAILS_DEFAULT_LOGGER
      logger = RAILS_DEFAULT_LOGGER
    else
      logger = nil
    end
    begin
      app_yaml_file = YAML.load_file("#{RAILS_ROOT}/config/rmobio.yml")
    rescue Exception => e
      raise StandardError, "config/rmobio.yml could not be loaded."
    end

    if app_yaml_file
      if app_yaml_file[RAILS_ENV]
        MOBIO_CONFIG = app_yaml_file[RAILS_ENV]
        
        # Replace all properties containing @somekey@ with the value of
        # "somekey"
        MOBIO_CONFIG.each do |key, value|
          filter_value = value.to_s.strip
          filter_key = /@(.*)@/.match(filter_value).to_s.strip
          if not filter_key.nil? and not filter_key == ''
            filter_key = filter_key.gsub(/@/,'')
            if not filter_key.nil? and not filter_value.nil? and not filter_key == ''
              filter_value = filter_value.gsub(/@.*@/, MOBIO_CONFIG[filter_key.strip])
              logger.debug('filtered key: ' + key + ' filtered value: ' + filter_value) unless logger.nil?
              MOBIO_CONFIG[key] = filter_value
            end
          end
        end
      else
        raise StandardError, "config/rmobio.yml exists, but doesn't have a configuration for RAILS_ENV=#{RAILS_ENV}."
      end
    else
      raise StandardError, "config/rmobio.yml does not exist."
    end
  end
end

# Now we want to initialize the MOBIO_CONFIG constant
include Rmobio::ConfigManager