var Login = {
    showOpenid: function() {
        $('#database_auth_form').hide();
        $('#openid_auth_form').show();
        $('#alternate_auth_openid').hide();
        $('#alternate_auth_database').show();
        $('#openid_url').focus();
        $('#openid_url').select();
        $.cookie('preferred_auth', 'openid');
    },

    showDatabase: function(container) {
        $('#openid_auth_form').hide();
        $('#database_auth_form').show();
        $('#alternate_auth_database').hide();
        $('#alternate_auth_openid').show();
        $('#user_login').focus();
        $('#user_login').select();
        $.cookie('preferred_auth', 'database');
    }
}

var TracksForm = {
    toggle: function(toggleDivId, formContainerId, formId, hideLinkText, hideLinkTitle, showLinkText, showLinkTitle) {
        $(formContainerId).toggle();
        toggleDiv = $(toggleDivId);
        toggleLink = toggleDiv.down('a');
        if (toggleDiv.hasClassName('hide_form')) {
            toggleLink.update(showLinkText).setAttribute('title', showLinkTitle);
        }
        else {
            toggleLink.update(hideLinkText).setAttribute('title', hideLinkTitle);
            Form.focusFirstElement(formId);
        }
        toggleDiv.toggleClassName('hide_form');
    }, 
    get_period: function() {
        if ($('recurring_todo_recurring_period_daily').checked) {
            return 'daily';
        } 
        else if ($('recurring_todo_recurring_period_weekly').checked) {
            return 'weekly';
        }
        else if ($('recurring_todo_recurring_period_monthly').checked) {
            return 'monthly';
        }
        else if ($('recurring_todo_recurring_period_yearly').checked) {
            return 'yearly';
        }
        else {
            return 'no period'
        }
    },
    get_edit_period: function() {
        if ($('recurring_edit_todo_recurring_period_daily').checked) {
            return 'daily';
        } 
        else if ($('recurring_edit_todo_recurring_period_weekly').checked) {
            return 'weekly';
        }
        else if ($('recurring_edit_todo_recurring_period_monthly').checked) {
            return 'monthly';
        }
        else if ($('recurring_edit_todo_recurring_period_yearly').checked) {
            return 'yearly';
        }
        else {
            return 'no period'
        }
    },
    hide_all_recurring: function () {
        $('recurring_daily').hide();
        $('recurring_weekly').hide();
        $('recurring_monthly').hide();
        $('recurring_yearly').hide();
    },
    hide_all_edit_recurring: function () {
        $('recurring_edit_daily').hide();
        $('recurring_edit_weekly').hide();
        $('recurring_edit_monthly').hide();
        $('recurring_edit_yearly').hide();
    },
    toggle_overlay: function () {
        el = document.getElementById("overlay");
        el.style.visibility = (el.style.visibility == "visible") ? "hidden" : "visible";
    }
}

var TodoBehavior = {
    enableToggleNotes: function() {
        jQuery(".show_notes").unbind('click').bind('click', function () {
            jQuery(this).next().toggle("fast"); return false;
        });
    }
}

$.fn.clearForm = function() {
  return this.each(function() {
    var type = this.type, tag = this.tagName.toLowerCase();
    if (tag == 'form')
      return $(':input',this).clearForm();
    if (type == 'text' || type == 'password' || tag == 'textarea')
      this.value = '';
    else if (type == 'checkbox' || type == 'radio')
      this.checked = false;
    else if (tag == 'select')
      this.selectedIndex = -1;
  });
};

/****************************************
 * Unobtrusive jQuery written by Eric Allen
 ****************************************/

/* Set up authenticity token proplery */
$(document).ajaxSend(function(event, request, settings) {
  if ( settings.type == 'POST' ) {
    settings.data = (settings.data ? settings.data + "&" : "")
      + "authenticity_token=" + encodeURIComponent( AUTH_TOKEN ) + "&"
      + "_source_view=" + encodeURIComponent( SOURCE_VIEW );
    request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  }
  request.setRequestHeader("Accept", "text/javascript");
});

function toggle_star_remote(ev){
  ev.preventDefault();
  $.post(this.href, {_method: 'put'}, null, 'script');
}

function toggle_checkbox_remote(ev){
  params = {_method: 'put'};
  if(typeof(TAG_NAME) !== 'undefined')
    params._tag_name = TAG_NAME;
  $.post(this.value, params, null, 'script');
}

function set_behavior_for_tag_edit_todo(){
  /*
    apply_behavior 'form.edit_todo_form', make_remote_form(
      :method => :put, 
      :before => "todoSpinner = this.down('button.positive'); todoSpinner.startWaiting()",
      :loaded => "todoSpinner.stopWaiting()",
      :condition => "!(this.down('button.positive').isWaiting())"),
      :prevent_default => true
      */
}

todoItems = {
  // public
  ensureVisibleWithEffectAppear: function(elemId){
    $('#'+elemId).fadeIn(400);
  },
  expandNextActionListing: function(itemsElem, skipAnimation) {
    itemsElem = $(itemsElem);
    if(skipAnimation == true) {
      itemsElem.show();
    }
    else {
      itemsElem.show('blind', 400);
    }
    todoItems.showContainer(itemsElem.parentNode);
  },
  collapseNextActionListing: function(itemsElem, skipAnimation) {
    itemsElem = $(itemsElem);
    if(skipAnimation == true) {
      itemsElem.hide();
    }
    else {
      itemsElem.hide('blind', 400);
    }
    todoItems.hideContainer(itemsElem.parentNode);
  },
  ensureContainerHeight: function(itemsElem) {
    $(itemsElem).css({height: '', overflow: ''});
  },
  expandNextActionListingByContext: function(itemsElemId, skipAnimation){
    todoItems.expandNextActionListing($('#'+itemsElem).get(), skipAnimation);
  },

  // private
  buildCookieName: function(containerElem) {
    tracks_login = $.cookie('tracks_login');
    return 'tracks_'+tracks_login+'_context_' + containerElem.id + '_collapsed';
  },
  showContainer: function(containerElem) {
    imgSrc = $(containerElem).find('.container_toggle img').attr('src');
    $(containerElem).find('.container_toggle img').attr('src', imgSrc.replace('expand', 'collapse'));
  },
  hideContainer: function (containerElem) {
    imgSrc = $(containerElem).find('.container_toggle img').attr('src');
    $(containerElem).find('.container_toggle img').attr('src', imgSrc.replace('collapse', 'expand'));
  }
}

function setup_container_toggles(){
  // bind handlers
  $('.container_toggle').click(function(evt){
      toggle_target = $(this.parentNode.parentNode).find('.toggle_target');
      if(toggle_target.is(':visible')){
        // hide it
        imgSrc = $(this).find('img').attr('src');
        $(this).find('img').attr('src', imgSrc.replace('collapse', 'expand'));
        $.cookie(todoItems.buildCookieName(this.parentNode.parentNode), true);
      } else {
        // show it
        imgSrc = $(this).find('img').attr('src');
        $(this).find('img').attr('src', imgSrc.replace('expand', 'collapse'));
        $.cookie(todoItems.buildCookieName(this.parentNode.parentNode), null);
      }
      toggle_target.toggle('blind');
      });
  // set to cookied state
  $('.container.context').each(function(){
      if($.cookie(todoItems.buildCookieName(this))){
        imgSrc = $(this).find('.container_toggle img').attr('src');
        $(this).find('.container_toggle img').attr('src', imgSrc.replace('collapse', 'expand'));
        $(this).find('.toggle_target').hide();
        }
      });
}

function askIfNewContextProvided() {
  var givenContextName = $('#todo_context_name').val();
  if (givenContextName.length == 0) return true; // do nothing and depend on rails validation error
  for (var i = 0; i < contextNames.length; ++i) {
    if (contextNames[i] == givenContextName) return true;
  }
  return confirm('New context "' + givenContextName + '" will be also created. Are you sure?');
}

/* Unobtrusive jQuery behavior */

$(document).ready(function() {
  /* Nifty corners */
  Nifty("div#recurring_new_container","normal");

  /* fade flashes and alerts in automatically */
  $(".alert").fadeOut(8000);

  /* set behavior for star icon */
  $(".item-container a.star_item").
    live('click', toggle_star_remote);

  /* set behavior for toggle checkboxes */
  $(".item-container input.item-checkbox").
    live('click', toggle_checkbox_remote);

  setup_container_toggles();

  $('input.Date').datepicker();

  $('#toggle_action_new').click(function(){
    TracksForm.toggle('toggle_action_new', 'todo_new_action', 'todo-form-new-action',
      '&laquo; Hide form', 'Hide next action form',
      'Add a next action &#187;', 'Add a next action');
    });

  $('.edit-form a.negative').live('click', function(){
      $(this).parents('.container').find('.item-show').show();
      $(this).parents('.edit-form').hide();
      });
  
  $(".date_clear").live('click', function() {
      /* add behavior to clear the date both buttons for show_from and due */
      $(this).prev().val('');
    });

  /* recurring todo behavior */

  /* behavior for delete icon */
  $('.item-container a.delete_icon').live('click', function(evt){
      evt.preventDefault();
      params = {};
      if(typeof(TAG_NAME) !== 'undefined'){
        params._tag_name = TAG_NAME;
      }
      if(confirm("Are you sure that you want to "+this.title+"?")){
        itemContainer = $(this).parents(".item-container");
        itemContainer.block({message: null});
        params._method = 'delete';
        $.post(this.href, params, function(){
          itemContainer.unblock();
          }, 'script');
      }
    });

  /* behavior for edit icon */
  $('.item-container a.edit_icon').live('click', function(evt){
      evt.preventDefault();
      params = {};
      if(typeof(TAG_NAME) !== 'undefined'){
        params._tag_name = TAG_NAME;
      }
      itemContainer = $(this).parents(".item-container");
      $(this).effect('pulsate', {times: 1}, 800);
      $.get(this.href, params, function(){
        }, 'script');
    });

  $("#recurring_todo_new_action_cancel").click(function(){
      $('#recurring-todo-form-new-action').clearForm();
      $('#recurring-todo-form-new-action input:first').focus();
      TracksForm.hide_all_recurring();
      $('#recurring_daily').show();
      TracksForm.toggle_overlay();
  });

  $("#recurring_todo_edit_action_cancel").live('click', function(){
      $('#recurring-todo-form-edit-action').clearForm();
      $('#recurring-todo-form-edit-action input:first').focus();
      TracksForm.hide_all_recurring();
      $('#recurring_daily').show();
      TracksForm.toggle_overlay();
  });
  $("#recurring_edit_period input").live('click', function(){
      $.each(['daily', 'weekly', 'monthly', 'yearly'], function(){
        $('#recurring_edit_'+this).hide();
        });
      $('#recurring_edit_'+this.id.split('_')[5]).show();
    });
});