#--
# Copyright (c) 2007 Mathew Abonyi
# Please read LICENSE document for more information.
#++

# This extension to the Changeset model translates SCM ticket
# updates into actual changes on each referenced ticket.
module Retrospectiva::Extension::ScmTicketUpdate::ChangesetExtension

  def self.included(base)
    base.class_eval do
      include InstanceMethods
      after_create :update_tickets_from_references
    end
  end

  module InstanceMethods

    def update_tickets_from_references
      User.current = User.find_by_active_and_scm_name(true, self.author) || 
                     User.find_by_active_and_login(true, self.author) || 
                     User.public_user                

      Retrospectiva::Extension::ScmTicketUpdate::Parser.parse_log(self.revision, self.log) do |reference|
        logger.info "\n\n[SCM Ticket Update] ------------------------------"
        logger.info "Detected reference: #{reference.inspect}"
        begin
          ticket = Ticket.find :first, 
            :include => [:milestone, { :project => [{:groups => :users}, {:ticket_property_types => :ticket_properties}] }], 
            :conditions => ['tickets.id = ? AND projects.closed = ?', reference[:id], false]
          
          if ticket && User.current.has_permission?(ticket.project, :create_and_work_on_tickets)
            logger.debug "Updating ticket: #{ticket.id}"
            ticket.monitor_attribute_changes!
            ticket.update_from_reference(reference.merge(:user_id => User.current.id))
            ticket.ticket_changes.build(:content => reference[:content], :user_id => User.current.id)
            ticket.save!
            logger.info "Updated ticket: #{ticket.id}"
          end
        rescue ActiveRecord::ActiveRecordError => e
          logger.error "Could not integrate reference to ##{reference[:id]}"
          logger.error "Exception!\n#{e.inspect}\n" + e.backtrace.join("\n")
        end
      end                             

    end    
  end
    
end

Changeset.class_eval { include Retrospectiva::Extension::ScmTicketUpdate::ChangesetExtension }