FubuQuery: First pass at DSL.cs

public class BinCountDTO
{
    public string BinName { get; set; }
    public int ItemCount { get; set; }
}



public class ConsoleDTO
{
    public int UnqueuedItemsCount { get; set; }
    public int QueuedItemsCount { get; set; }
    public BinCountDTO[] ByItemType { get; set; }
    public BinCountDTO[] Queues { get; set; }
    public BinCountDTO[] Tags { get; set; }
}

public class ConsoleMap : QueryMap<ConsoleDTO>
{
    public ConsoleMap()
     {
         // This map requires a single input: The user
         RequireParam<User>("current_user");
        
         // First get the open, unqueued items that I own
         For(d => d.UnqueuedItemsCount)
             .Count<WorkflowItem>(i => 
                     i.Condition != "Closed" 
                     && i.Owner == GetParam("current_user") 
                     && i.Queue == null);
             
         // Next get the open, queued items that I own
         For(d => d.QueuedItemsCount)
             .Count<WorkflowItem>(i => 
                     i.Condition != "Closed" 
                     && i.Owner == GetParam("current_user") 
                     && i.Queue != null);
             
         // Next, get the counts of each workflowitem by type (Case, Solution, etc)
         // "GetWorkflowItemTypes()" is just a static method that returns a string[]
         // and doesn't actually hit the DB
         For(d => d.ByItemType).Each(GetWorkflowItemTypes())
             .Project(m => 
                          {
                             m.For(b => b.BinName).Use(entityType => entityType.Name);
                             m.For(b => b.ItemCount)
                                   .Count<WorkflowItem>(i => 
                                            i.Condition != "Closed" 
                                            && i.Owner == GetParam("current_user") 
                                            && i.Queue == null
                          });
                  
         // Next, get the list of queues that I'm a member of from the DB
         // Then, for each queue, get the count of the number of open items in that queue
         For(d => d.Queues)
             .Fetch<Queue>(q => q.Members.Contains(GetParam("current_user")))
             .Project(m => 
                          {
                             m.For(b => b.BinName).Use(q => q.Name);
                             m.For(b => b.ItemCount)
                                      .Count<WorkflowItem>(i => 
                                                 i.Condition != "Closed" 
                                                 && i.Queue == m.CurrentObject())
                          });
                          

         // Next, get the list of my tags and project the list with the counts of items
         // in each tag
         For(d => d.Tags)
             .Fetch<Tag>(t => t.User == GetParam("current_user"))
             .Project(m =>
                          {
                             m.GroupBy(t => t.Name).MapTo(b => b.BinName);
                             m.For(b => b.ItemCount).Count();
                          });

             
     }
}