// todo: make this more Prototype-ish:
//       * new function syntax
//       * maybe objectify this all

// default search when the window loads
Event.observe(window, 'load', 
	      function() { 
                          ajax_search_fellowships();
			  $('status').hide();
                          $('search_keywords').focus();  
                         });


function ajax_search_fellowships() {

  ajax_get_fellowships(true);

}

function ajax_sort_results(sort_item) {

  if( sort_item != $F('search_order_by') && $F('search_order_by') != '') {
    var new_sort_item = true;
  }

  if( $F('search_order_asc_desc') == 'desc' || new_sort_item ) {
    $('search_order_asc_desc').value = 'asc';
  } else {
    $('search_order_asc_desc').value = 'desc';
  }
  
  $('search_order_by').value = sort_item;

  ajax_get_fellowships(false);

}

// uses 'get' because it doesn't change any data
function ajax_get_fellowships(highlight_option) {

  new Ajax.Updater('results','http://www.college.columbia.edu/students/fellowships/catalog/ajax/get_search_results.php',
  { parameters: { keywords:       $F('search_keywords'),
		  year:           $F('search_year'),
		  discipline:     $F('search_discipline'),
		  order_by:       $F('search_order_by'),
	          order_asc_desc: $F('search_order_asc_desc'),
		  session_id:     $F('session_id')},
    method:'get',
    onComplete:function() {
      if(highlight_option) {
	new Effect.Highlight('results', {duration: 0.5});
      }
     }		   
   });
}

// uses 'get' because it doesn't change any data
function ajax_edit_fellowship(fellowship_id, session_id) {
  if(! fellowship_id) {
    var fellowship_id = '';
  }

  var url = 'http://www.college.columbia.edu/students/fellowships/catalog/ajax/edit_fellowship_details.php';
  
  new Ajax.Updater('results',url,
  { parameters: { fellowship_id:  fellowship_id,
		  session_id:     session_id},
    method:'get',
    onComplete:function() {
	new Effect.Highlight('results', {duration: 0.5});
     }	   
   });
}

// uses 'get' because it doesn't change any data
function ajax_get_fellowship(fellowship_id, session_id) {
  
  if(! fellowship_id) {
    var fellowship_id = '';
  }

  var url = 'http://www.college.columbia.edu/students/fellowships/catalog/ajax/get_fellowship_details.php';
  
  new Ajax.Updater('results',url,
  { parameters: { fellowship_id:  fellowship_id,
		  session_id:     session_id},
    method:'get',
    onComplete:function() {
	new Effect.Highlight('results', {duration: 0.5});
     }		   
   });
}

// uses 'post' because it changes data
function ajax_save_fellowship(fellowship_id, session_id) {
  if(! fellowship_id) {
    fellowship_id = '';
  }

  var url = 'http://www.college.columbia.edu/students/fellowships/catalog/ajax/save_fellowship_details.php';
  
  // debug
  new Ajax.Updater('results', url,
  { parameters: { fellowship_id:  fellowship_id,
                  session_id:     session_id,
		  name:           $F('name'),
		  years:          $F('years').join(','),
		  deadline:       $F('deadline'),
		  disciplines:    $F('disciplines').join(','),
		  geographic:     $F('geographic'),
		  contact:        $F('contact'),
	          description:    $F('description'),
	          application_url: $F('application_url')
		  },
    method:'post',
    onComplete:function() {

      show_status('Saved fellowship.');

     }		   
   });
}

// uses 'get' because it doesn't change any data
function ajax_get_last_id() {

  text = new Ajax.Request('http://www.college.columbia.edu/students/fellowships/catalog/ajax/get_last_fellowship_id.php',
                   {
                    method: 'get',
		    onComplete: function(transport) {
		      $('last_id').value = transport.responseText;
		    }
		   });
}

// uses 'post' because it changes data
function ajax_delete_fellowship(fellowship_id, session_id) {
  confirmation = confirm('Are you sure you want to delete this fellowship?');
  
  if(! confirmation)
    return false;

  if(! fellowship_id) {
    fellowship_id = '';
  }
  
  var url = 'http://www.college.columbia.edu/students/fellowships/catalog/ajax/delete_fellowship.php';
  
  new Ajax.Updater('results',url,
  { parameters: { fellowship_id:  fellowship_id,
                  session_id:     session_id
		  },
    method:'post',
    onComplete:function() {
      
      ajax_search_fellowships();
      show_status('Deleted fellowship.');
      
     }		   
  });
}

function show_status(message) {

  $('status').update(message);
  Effect.Appear('status', { queue:'front'  });
  Effect.Fade('status', { delay: 3, queue:'end' });
}