class WelcomeController < ApplicationController
  before_filter :login_required
  before_filter :staff_or_admin_required, :only => [ :staff ]
  
  def index
    if(current_user.staff_or_admin?)
      redirect_to :action => 'staff'
    else
      redirect_to :action => 'home'
    end
  end

  def home
    # Admins get their own home page
    if(current_user.staff_or_admin?)
      redirect_to :action => 'staff'
    end
    
    # get all possible naming schemes
    @naming_schemes = NamingScheme.find(:all)

    # grab SBEAMS configuration parameter here, rather than
    # grabbing it in the list view for every element displayed
    @using_sbeams = SiteConfig.find(1).using_sbeams?
    
    # Make an array of the accessible lab group ids, and use this
    # to find the current user's accessible samples in a nice sorted list
    @lab_groups = current_user.lab_groups
    @chip_types = ChipType.find(:all, :order => "name ASC")
    if(@lab_groups != nil && @lab_groups.size > 0)
      lab_group_ids = Array.new
      for lab_group in @lab_groups
        lab_group_ids << lab_group.id
      end
      projects = Project.find(:all, :conditions => [ "lab_group_id IN (?)", lab_group_ids],
                                :order => "name ASC")
      project_ids = Array.new
      for project in projects
        project_ids << project.id
      end
      @samples = Sample.find(:all, :conditions => [ "project_id IN (?) AND status = ?", project_ids, 'submitted' ],
                                :order => "samples.id ASC")
    end
  end

  def staff
    # get all possible naming schemes
    @naming_schemes = NamingScheme.find(:all)

    # grab SBEAMS configuration parameter here, rather than
    # grabbing it in the list view for every element displayed
    @using_sbeams = SiteConfig.find(1).using_sbeams?
    
    # Make an array of the accessible lab group ids, and use this
    # to find the current user's accessible samples in a nice sorted list
    @lab_groups = LabGroup.find(:all, :order => "name ASC")
    @chip_types = ChipType.find(:all, :order => "name ASC")
    @samples = Sample.find(:all, :conditions => [ "status = ?", 'submitted' ],
                              :order => "samples.id ASC",
                              :include => 'project')
  end
#
#  # Edit the details of any user. The Role which can perform this will almost certainly also
#  # need the following permissions: user/change_password, user/edit, user/edit_roles, user/delete
#  def edit_user
#    if (@user = find_user(params[:id]))
#      @all_roles = Role.find(:all).select { |r| r.name != UserEngine.config(:guest_role_name) }
#      @all_lab_groups = LabGroup.find(:all, :order => "name ASC")
#      case request.method
#        when :get
#        when :post
#          @user.attributes = params[:user].delete_if { |k,v| not LoginEngine.config(:changeable_fields).include?(k) }
#          if @user.save
#            flash.now[:notice] = "Details for user '#{@user.login}' have been updated"
#          else
#            flash.now[:warning] = "Details could not be updated!"
#          end
#      end
#    else
#      redirect_back_or_default :action => 'list'
#    end
#  end
#  
#  # Edit the lab groups for a given user.
#  # A user typically shouldn't be allowed to edit their own lab gropus, since they could
#  # assign themselves as Admins and then do anything. Therefore, keep this method
#  # locked down as much as possible.
#  def edit_lab_groups
#    if (@user = find_user(params[:id]))
#      begin
#        User.transaction(@user) do
#          if(params[:user] != nil)
#            lab_groups = params[:user][:lab_groups].collect { |lab_group_id| LabGroup.find(lab_group_id) }          
#          else
#            lab_groups = Array.new
#          end
#
#          for lab_group in lab_groups
#            if !@user.lab_groups.include?(lab_group)
#              LabMembership.create(:lab_group => lab_group, :user => @user)  
#            end
#          end
#
#          for lab_group in @user.lab_groups
#            if !lab_groups.include?(lab_group)
#              LabMembership.find( :first, :conditions => ["user_id = ? AND lab_group_id = ?",
#                                                          @user.id, lab_group.id] ).destroy
#            end
#          end
#          flash[:notice] = "Lab groups updated for user '#{@user.login}'."
#        end
#      rescue
#        flash[:warning] = 'Lab groups could not be edited at this time. Please retry.'
#      ensure
#        redirect_to :back
#      end
#    else
#      redirect_back_or_default :action => 'list'
#    end
#  end
#  
#  # Display the details for a given user
#  def show    
#    if (@user = find_user(params[:id]))
#      @content_columns = user_content_columns_to_display
#    else
#      redirect_back_or_default :action => 'list'
#    end
#  end
end