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# Redmine - project management software

# Copyright (C) 2006-2008  Jean-Philippe Lang

#

# 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 2

# 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module Redmine

  module Activity

    mattr_accessor :available_event_types, :default_event_types, :providers

    @@available_event_types = []

    @@default_event_types = []

    @@providers = Hash.new {|h,k| h[k]=[] }

    class << self

      def map(&block)

        yield self

      end

      # Registers an activity provider

      def register(event_type, options={})

        options.assert_valid_keys(:class_name, :default)

        event_type = event_type.to_s

        providers = options[:class_name] || event_type.classify

        providers = ([] << providers) unless providers.is_a?(Array)

        @@available_event_types << event_type unless @@available_event_types.include?(event_type)

        @@default_event_types << event_type unless options[:default] == false

        @@providers[event_type] += providers

      end

    end

  end

end