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# Redmine - project management software

# Copyright (C) 2006-2012  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.

class WorkflowsController < ApplicationController

  layout 'admin'

  before_filter :require_admin, :find_roles, :find_trackers

  def index

    @workflow_counts = WorkflowTransition.count_by_tracker_and_role

  end

  def edit

    @role = Role.find_by_id(params[:role_id]) if params[:role_id]

    @tracker = Tracker.find_by_id(params[:tracker_id]) if params[:tracker_id]

    if request.post?

      WorkflowTransition.destroy_all( ["role_id=? and tracker_id=?", @role.id, @tracker.id])

      (params[:issue_status] || []).each { |status_id, transitions|

        transitions.each { |new_status_id, options|

          author = options.is_a?(Array) && options.include?('author') && !options.include?('always')

          assignee = options.is_a?(Array) && options.include?('assignee') && !options.include?('always')

          WorkflowTransition.create(:role_id => @role.id, :tracker_id => @tracker.id, :old_status_id => status_id, :new_status_id => new_status_id, :author => author, :assignee => assignee)

        }

      }

      if @role.save

        redirect_to :action => 'edit', :role_id => @role, :tracker_id => @tracker, :used_statuses_only => params[:used_statuses_only]

        return

      end

    end

    @used_statuses_only = (params[:used_statuses_only] == '0' ? false : true)

    if @tracker && @used_statuses_only && @tracker.issue_statuses.any?

      @statuses = @tracker.issue_statuses

    end

    @statuses ||= IssueStatus.sorted.all

    if @tracker && @role && @statuses.any?

      workflows = WorkflowTransition.where(:role_id => @role.id, :tracker_id => @tracker.id).all

      @workflows = {}

      @workflows['always'] = workflows.select {|w| !w.author && !w.assignee}

      @workflows['author'] = workflows.select {|w| w.author}

      @workflows['assignee'] = workflows.select {|w| w.assignee}

    end

  end

  def permissions

    @role = Role.find_by_id(params[:role_id]) if params[:role_id]

    @tracker = Tracker.find_by_id(params[:tracker_id]) if params[:tracker_id]

    if request.post? && @role && @tracker

      WorkflowPermission.replace_permissions(@tracker, @role, params[:permissions] || {})

      redirect_to :action => 'permissions', :role_id => @role, :tracker_id => @tracker, :used_statuses_only => params[:used_statuses_only]

      return

    end

    @used_statuses_only = (params[:used_statuses_only] == '0' ? false : true)

    if @tracker && @used_statuses_only && @tracker.issue_statuses.any?

      @statuses = @tracker.issue_statuses

    end

    @statuses ||= IssueStatus.sorted.all

    if @role && @tracker

      @fields = (Tracker::CORE_FIELDS_ALL - @tracker.disabled_core_fields).map {|field| [field, l("field_"+field.sub(/_id$/, ''))]}

      @custom_fields = @tracker.custom_fields

      @permissions = WorkflowPermission.where(:tracker_id => @tracker.id, :role_id => @role.id).all.inject({}) do |h, w|

        h[w.old_status_id] ||= {}

        h[w.old_status_id][w.field_name] = w.rule

        h

      end

      @statuses.each {|status| @permissions[status.id] ||= {}}

    end

  end

  def copy

    if params[:source_tracker_id].blank? || params[:source_tracker_id] == 'any'

      @source_tracker = nil

    else

      @source_tracker = Tracker.find_by_id(params[:source_tracker_id].to_i)

    end

    if params[:source_role_id].blank? || params[:source_role_id] == 'any'

      @source_role = nil

    else

      @source_role = Role.find_by_id(params[:source_role_id].to_i)

    end

    @target_trackers = params[:target_tracker_ids].blank? ? nil : Tracker.find_all_by_id(params[:target_tracker_ids])

    @target_roles = params[:target_role_ids].blank? ? nil : Role.find_all_by_id(params[:target_role_ids])

    if request.post?

      if params[:source_tracker_id].blank? || params[:source_role_id].blank? || (@source_tracker.nil? && @source_role.nil?)

        flash.now[:error] = l(:error_workflow_copy_source)

      elsif @target_trackers.nil? || @target_roles.nil?

        flash.now[:error] = l(:error_workflow_copy_target)

      else

        WorkflowRule.copy(@source_tracker, @source_role, @target_trackers, @target_roles)

        flash[:notice] = l(:notice_successful_update)

        redirect_to :action => 'copy', :source_tracker_id => @source_tracker, :source_role_id => @source_role

      end

    end

  end

  private

  def find_roles

    @roles = Role.sorted.all

  end

  def find_trackers

    @trackers = Tracker.sorted.all

  end

end