$(document).ready(function() {    
  /*
    hover events for special menu (b-coaching and l-coaching)
  */
  var special_menu_state = '';
  if ($('.special-menu').hasClass('b-coaching-selected')) { 
    special_menu_state = 'b-coaching-selected';
  }
  else if ($('.special-menu').hasClass('l-coaching-selected')) { 
    special_menu_state = 'l-coaching-selected';
  }

  $('#b-coaching').hover(
    function() { 
      $('.special-menu').removeClass(special_menu_state); 
      $('.special-menu').addClass('b-coaching-selected'); 
    },
    function() { 
      $('.special-menu').removeClass('b-coaching-selected'); 
      $('.special-menu').addClass(special_menu_state); 
    }
  );
  $('#l-coaching').hover(
    function() { 
      $('.special-menu').removeClass(special_menu_state); 
      $('.special-menu').addClass('l-coaching-selected'); 
    },
    function() { 
      $('.special-menu').removeClass('l-coaching-selected'); 
      $('.special-menu').addClass(special_menu_state); 
    }
  );

 
  /*
    tabs
  */  
  $('#tabs li').bind("click", function() {
    var previous_tab = $('#tabs li.selected');
    var previous_id = previous_tab.children('a').attr('href');
    var id = $(this).children('a').attr('href');
    
    // clear selected class from previous tab, add displaynone class to div
    previous_tab.removeClass('selected');
    $(previous_id).addClass('displaynone');
    
    // add selected class to new tab, remove displaynone class from div
    $(this).addClass('selected');
    $(id).removeClass('displaynone');    
    
    return false;
  });
  
  
  /*
    slideshow functions
  */
  // sets coaches slideshow to page indexed i
  function slideshow_set_page(slideshow, pagination, pagination_text, i, timer) {    
    // restart timer if its passed
    if (timer !== null) {
      timer.restart();
    }
    
    // check if such page exists in pagination and slideshow, and if its already selected
    if (pagination.eq(i).size() === 0 || slideshow.eq(i).size() === 0 || pagination.eq(i).hasClass('selected')) {
      return false;
    }

    // set new page to selected in pagination
    pagination.removeClass('selected');
    pagination.eq(i).addClass('selected');
    pagination_text.text((i+1)+' iš '+pagination.size())

    // show next page in slideshow
    slideshow.parent().fadeOut('slow', function() {
      slideshow.addClass('displaynone');    
      slideshow.eq(i).removeClass('displaynone');
      $(this).fadeIn('slow');
    });
  }
  
  /*
    ajax dialog
  */
  function ajax_dialog(url) {
    $.ajax({
      url: url,
      type: "POST",
      dataType: "html",
      beforeSend: function (XMLHttpRequest) {
        // create dialog
        $('<div id="dialog">').dialog({
          autoOpen: true,
          modal: true,
          width: 600,
          position: ['center', 50],
          draggable: true,
          buttons: { 
              'Uždaryti': function() {
                $(this).remove();
              }
          },
          close: function() {
            $(this).remove();
          }
        });
        // insert ajax spinner inside it
        $('#dialog').html('<div class="ajax_spinner">Puslapis kraunasi, prašome palaukti...</div>');
      },
      error: function (XMLHttpRequest, textStatus) {
        // insert error into dialog
        $('#dialog').html('<div class="error">Atsiprašome, įvyko klaida su užklausa. Pabandykite iš naujo.</div>');
      },
      success: function(data, textStatus) {
        // insert data into dialog
        $('#dialog').html(data);
        // insert buttons into dialog, so it is submittable
      }
    });
    
    return false;
  }
  
  // bind class to dialog creation
  $('.call_dialog').live('click', function() {
    ajax_dialog($(this).attr('href'));
    
    return false;
  });
  

  /*
    Events slideshow
  */
  var events_ss_timer; // events slideshow timer
  var events_ss_timer_delay = 8000; // 8 second timer delay  
  
  // sets events slideshow to page indexed i
  function events_ss_next_event() {
    // restart timer
    events_ss_timer.restart();
    
    // get slideshow array and current event item with index
    var slideshow = $('.events_slideshow li');
    var current_event = slideshow.filter(':visible');
    var current_index = slideshow.index(current_event);
    
    // check if slideshow has more than 1 event
    if (slideshow.size() <= 1) {
      return false;
    }

    if (current_index+1 >= slideshow.size())
    {
      // show next event in slideshow
      slideshow.parent().fadeOut('slow', function() {
        slideshow.addClass('displaynone');    
        slideshow.eq(0).removeClass('displaynone');
        $(this).fadeIn('slow');
      });
    }
    else
    {
      // show next event in slideshow
      slideshow.parent().fadeOut('slow', function() {
        slideshow.addClass('displaynone');    
        slideshow.eq(current_index+1).removeClass('displaynone');
        $(this).fadeIn('slow');
      });
    }
  }
  
  // init
  if ($('.events_slideshow').size() > 0)
  {
    events_ss_timer = new Timer(events_ss_timer_delay, events_ss_next_event).start();
  }
  
  
  /*
    main page
  */
  var coaches_ss_timer; // coaches slideshow timer for main page
  var coaches_ss_timer_delay = 8000; // 8 second timer delay  
  
  // moves coaches slideshow to next page 
  function coaches_ss_next_page() {
    var pagination = $('.main_coaches .pagination li');
    
    // if selected item is last -> trigger first items' click event
    if (pagination.filter('li.selected:last-child').size() > 0) {
      pagination.eq(0).trigger('click');
    }
    // else -> trigger next items' click event
    else {
      pagination.filter('li.selected').next().trigger('click');
    }
  }
  
  // bindings for pagination/slideshow
  $('.main_coaches .pagination li').bind('click', function() {
    var index = $(this).parent().children().index(this);
    var slideshow = $('.main_coaches .coaches_slideshow > li');
    var pagination = $('.main_coaches .pagination li');
    var pagination_text = $('.main_coaches .pagination span');
    var timer = coaches_ss_timer;
    
    slideshow_set_page(slideshow, pagination, pagination_text, index, timer);
  });
  // init
  if ($('.main_coaches').size() > 0)
  {
    coaches_ss_timer = new Timer(coaches_ss_timer_delay, coaches_ss_next_page).start();
  }
  
  
  /*
    lc_coaching 
  */
  // bindings for pagination/slideshow
  $('.lc_individual_coaching .pagination li').bind('click', function() {
    var index = $(this).parent().children().index(this);
    var slideshow = $('.lc_individual_coaching .specialists_slideshow > li');
    var pagination = $('.lc_individual_coaching .pagination li');
    var pagination_text = $('.lc_individual_coaching .pagination span');
    var timer = null;
    
    slideshow_set_page(slideshow, pagination, pagination_text, index, timer);
  });
  
  
  /*
    bc_coaching
  */
  $('.bc_individual_coaching .pagination li').bind('click', function() {
    var index = $(this).parent().children().index(this);
    var slideshow = $('.bc_individual_coaching .specialists_slideshow > li');
    var pagination = $('.bc_individual_coaching .pagination li');
    var pagination_text = $('.bc_individual_coaching .pagination span');
    var timer = null;
    
    slideshow_set_page(slideshow, pagination, pagination_text, index, timer);
  });
  
  
  /*
    coaches 
  */
  $('.coaches .pagination li').bind('click', function() {
    var index = $(this).parent().children().index(this);
    var slideshow = $('.coaches .coaches_slideshow > li');
    var pagination = $('.coaches .pagination li');
    var pagination_text = $('.coaches .pagination span');
    var timer = null;
    
    slideshow_set_page(slideshow, pagination, pagination_text, index, timer);
  });
  
  
  /*
    suggestions
  */
  $('.faqs li').bind('click', function() {
    $(this).toggleClass('selected');
    $(this).children('.answer').slideToggle('slow');
  });
  
  
  /*
    events
  */
  // calendar  
  function call_calendar(url) {
    $.ajax({
      url: url,
      type: "POST",
      dataType: "html",
      beforeSend: function (XMLHttpRequest) {
        $('#calendar').html('<div class="ajax_spinner">Kalendorius kraunasi, prašome palaukti...</div>');
      },
      error: function (XMLHttpRequest, textStatus) {
        $('#calendar').html('<div class="error">Atsiprašome, įvyko klaida su užklausa. Pabandykite atnaujinti puslapį.</div>');
      },
      success: function(data, textStatus) {
        $('#calendar').html(data);
        $('.calendar .date_has_event').tooltip({ 
            position: 'bottom center', 
            tip: '.tooltip',
            relative: true
        });        
        
      }
    });  
  }
  
  $('.calendar .call_calendar').live('click', function() { 
    var url = $(this).children('a').attr('href');    
    call_calendar(url);
    return false; 
  });
  
  // init
  if ($('#calendar').size() > 0) {
    call_calendar(base_url+'ajax/kalendorius');
  }
  
});