rbbt.favourites = {};

var fav_module = rbbt.favourites;

fav_module.update_favourite_entities = function(){
 return m.request({method: 'GET', url: '/favourite_entities'}).then(function(data){
  fav_module.favourite_entities = {}
  for (type in data){
   var type_data = data[type]
   fav_module.favourite_entities[type] = {}
   for (entity in type_data){
    var info = type_data[entity]
    info.id = entity
    info.type = type
    fav_module.favourite_entities[type][entity] = new Entity(info)
   }
  }
  return data
 })
}

fav_module.update_favourite_lists = function(){
 return m.request({method: 'GET', url: '/favourite_entity_lists'}).then(function(data){
  fav_module.favourite_lists = {}
  for (type in data){
   var type_data = data[type]
   fav_module.favourite_lists[type] = {}
   for (i in type_data){
    var list = type_data[i]
    info = {}
    info.id = list
    info.type = type
    fav_module.favourite_lists[type][list] = new EntityList(info)
   }
  }
  return data
 }) //.then(fav_module.update_list_selects)
}

fav_module.update_favourites = function(){
 return fav_module.update_favourite_entities().then(fav_module.update_favourite_lists)
}

fav_module.isFavourite_entity = function(entity){
 var favourites = fav_module.favourite_entities
 return favourites[entity.type] !== undefined && favourites[entity.type][entity.id] !== undefined
}

fav_module.isFavourite_list = function(list){
 var favourites = fav_module.favourite_lists
 return favourites[list.type] !== undefined && favourites[list.type][list.id] !== undefined
}

fav_module.toggleFavourite_entity = function(){
 var entity = rbbt.page.entity();

 if (fav_module.isFavourite_entity(entity)){
  rbbt.post({url: '/remove_favourite_entity/' + entity.type + '/' + entity.id}).then(fav_module.update)
 }else{
  rbbt.post({url: '/add_favourite_entity/' + entity.type + '/' + entity.id, data: entity.info}).then(fav_module.update)
 }
}

fav_module.toggleFavourite_list = function(){
 var list = rbbt.page.list();

 if (fav_module.isFavourite_list(list)){
  rbbt.post({url: '/remove_favourite_entity_list/' + list.type + '/' + list.id}).then(fav_module.update)
 }else{
  rbbt.post({url: '/add_favourite_entity_list/' + list.type + '/' + list.id}).then(fav_module.update)
 }
}

fav_module.toggleFavourite = function(){
 if (! rbbt.page.entity())
  if (! rbbt.page.list())
   return
  else
   fav_module.toggleFavourite_list()
 else
   fav_module.toggleFavourite_entity()
}

//{{{ VIEWS

fav_module.star_view = function(){
 if (! rbbt.page.entity())
  if (! rbbt.page.list())
   return
  else
   return m('i.icon.star', {class: (fav_module.isFavourite_list(rbbt.page.list()) ? 'favourite' : 'not_favourite')})
 else
  return m('i.icon.star', {class: (fav_module.isFavourite_entity(rbbt.page.entity()) ? 'favourite' : 'not_favourite')})
}

fav_module.draw_favourite_menu = function(){
 var favourites = fav_module.favourite_entities
 var types = Object.keys(favourites)

 return m('.ui.menu',
          m('.ui.dropdown.item', [
           m('i.icon.dropdown'), 
           'Entities',
           m('.menu', types.map(function(type, index){ 
            var _type = favourites[type]
            var entities = Object.keys(_type)

            return m('.ui.dropdown.item', [
             m('i.icon.dropdown'), 
             type,
             m('.menu', entities.map(function(entity, index){ url = _type[entity].url(); return m('a.item', {href: url}, _type[entity].name) }))
            ]);
           }))
          ])
         )
}

fav_module.draw_favourite_list_menu = function(){
 var favourites = fav_module.favourite_lists
 var types = Object.keys(favourites)

 return m('.ui.menu',
          m('.ui.dropdown.item', [
           m('i.icon.dropdown'), 
           'Lists',
           m('.menu', types.map(function(type, index){ 
            var _type = favourites[type]
            var lists = Object.keys(_type)

            return m('.ui.dropdown.item', [
             m('i.icon.dropdown'), 
             type,
             m('.menu', lists.map(function(lists, index){ url = _type[lists].url(); return m('a.item', {href: url}, _type[lists].name) }))
            ]);
           }))
          ])
         )
}
fav_module.view = function(){
 m.render($('#top_menu > .favourite')[0], [
  m('.item.pointer', {onclick: fav_module.toggleFavourite}, fav_module.star_view()), 
  m('.item', {style: 'padding: 0px'}, fav_module.draw_favourite_menu()),
  m('.item', {style: 'padding: 0px'}, fav_module.draw_favourite_list_menu())
 ])
}

fav_module.update = function(){
 fav_module.update_favourites().then(fav_module.view).then(function(){ $('.dropdown:not([tabindex])').dropdown()})
}


fav_module._update_list_select= function(select, type, lists){
 if (select.attr('attr-allow-empty') == 'true'){
  var option = $('<option value="none" class="loaded">none</option>')
  select.append(option);
 }

 var selected = null;

 if (select.attr('attr-selected') != undefined ){
  selected = select.attr('attr-selected');
 }

 $.each(lists, function(name, elems){
  var option = null;
  var name = elems
  if (selected == null || name != selected){
   option = $('<option attr-entity_type="' + type + '" class="automatic_load" value="' + name.id + '">' + name.id + '</option>');
  }else{
   option = $('<option attr-entity_type="' + type + '" class="automatic_load" selected=selected value="' + name.id + '">' + name.id + '</option>');
  }
  select.append(option);
  return true
 })
},

fav_module.update_list_selects= function(){
 $('select.favourite_lists').find('option.automatic_load').remove()

 $.each(fav_module.favourite_lists, function(type, lists){
  $('select.favourite_lists[type=' + type + ']').each(function(){
   var select = $(this);
   fav_module._update_list_select(select, type, lists);
  })
  $('select.favourite_lists[type=All]').each(function(){
   var select = $(this);
   select.append($('<option class="automatic_load ui" disabled>'+ type +'</option>'));
   fav_module._update_list_select(select, type, lists);
  })
 });
}

fav_module.update()