/// <summary>
/// To get list of menuitems in the Restaurant
/// </summary>
/// <param name="restaurantId"></param>
/// <param name="searchText"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns>IEnumerable<RestaurantMenu></returns>
public async Task <IEnumerable <RestaurantMenu> > GetRestaurantMenusAsync(int restaurantId, string searchText = null, int pageIndex = 0, int pageSize = 0)
{
LoggerManager.InfoLog(string.Format("Executing service to get the menu list of restaurant - {0}", restaurantId));
IEnumerable <RestaurantMenu> searchList = null;
LoggerManager.DebugLog("Establishing connection with Redis cache");
if (restaurantId > 0)
{
//Read Redis Cache
IRedisList <RestaurantMenu> menuList = getRedisCacheObject(_configuration["CacheKeyPrefix"] + restaurantId);
//Load Redis Cache
if (menuList == null || menuList.Count == 0)
{
LoggerManager.DebugLog("Loading items into the Redis cache");
menuList = await LoadMenuToRedisCache(restaurantId.ToString());
}
//Search cache for menuitem and return search list
if (menuList != null)
{
if (!String.IsNullOrEmpty(searchText))
{
LoggerManager.InfoLog(string.Format("Searching for menu items with text - {0}", searchText));
searchList = menuList.Where <RestaurantMenu>(menuitem => menuitem.MenuItemName.Contains(searchText.ToUpper()));
}
else
{
searchList = menuList.AsEnumerable <RestaurantMenu>();
}
}
}
if (pageIndex > 0 && pageSize > 0 && searchList != null && searchList.Count() > 0)
{
searchList = searchList.Skip(pageSize * (pageIndex - 1)).Take(pageSize);
LoggerManager.InfoLog(string.Format("Returning paged menu items of page index - {0} and of size {1}", pageIndex, pageSize));
if (searchList == null || searchList.Count() <= 0)
{
throw new Exception("End of Page");
}
}
return(searchList);
}
