- content_for :head do
  = stylesheet_link_tag 'problems'
  = javascript_include_tag 'local_jquery'

:javascript
  $(document).ready( function() {
    function shiftclick(start,stop,value) {
      $('tr input').each( function(id,input) { 
        var $input=$(input);
        var iid=parseInt($input.attr('id').split('-')[2]);
        if(iid>=start&&iid<=stop){
        $input.prop('checked',value)
        }
      });
    }

    $('tr input').click( function(e)  {
      if (e.shiftKey) {
        stop = parseInt($(this).attr('id').split('-')[2]);
        var orig_stop = stop
        if (typeof start !== 'undefined') {
          if (start > stop) {
            var tmp = start;
            start = stop;
            stop = tmp;
          }
          shiftclick(start,stop,$(this).is(':checked') )
        }
        start = orig_stop
      } else {
        start = parseInt($(this).attr('id').split('-')[2]);
      }
    });
  });


%h1 Manage problems

%p= link_to '[Back to problem list]', :action => 'list'

= form_tag :action=>'do_manage' do
  .submitbox
    What do you want to do to the selected problem?
    %br/
    (You can shift-click to select a range of problems)
    %ul
      %li
        Change date added to
        = select_date Date.current, :prefix => 'date_added'
        &nbsp;&nbsp;&nbsp;
        = submit_tag 'Change', :name => 'change_date_added'
      %li
        Set available to
        = submit_tag 'True', :name => 'enable_problem'
        = submit_tag 'False', :name => 'disable_problem'

      - if GraderConfiguration.multicontests?
        %li
          Add to 
          = select("contest","id",Contest.all.collect {|c| [c.title, c.id]})
          = submit_tag 'Add', :name => 'add_to_contest'

  %table
    %tr{style: "text-align: left;"}
      %th= check_box_tag 'select_all'
      %th Name
      %th Full name
      %th Available
      %th Date added
      - if GraderConfiguration.multicontests?
        %th Contests

    - num = 0
    - for problem in @problems
      - num += 1
      %tr{:id => "row-prob-#{problem.id}", :name=> "prob-#{problem.id}"}
        %td= check_box_tag "prob-#{problem.id}-#{num}"
        %td= problem.name
        %td= problem.full_name
        %td= problem.available
        %td= problem.date_added
        - if GraderConfiguration.multicontests?
          %td
            - problem.contests.each do |contest|
              = "(#{contest.name} [#{link_to 'x', :action => 'remove_contest', :id => problem.id, :contest_id => contest.id }])"