USE [EnVisage]
GO

/****** Object:  UserDefinedFunction [dbo].[resourceAvailability_f]    Script Date: 01/26/2016 11:16:17 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE FUNCTION [dbo].[resourceAvailability_f](@StartDate datetime, @EndDate datetime)
RETURNS @restable TABLE
   (FirstName  varchar(100),
    LastName   varchar(100),
    ExpenditureCategory       varchar(100),
    AvailableHours       float,
    AllocatedHours       float,
    TrainingHours       float,
    VacationHours       float,
    ResourceAvailability       float,
    TeamName	varchar(100)
    )
AS
BEGIN
  
    INSERT INTO @restable
     select 
vw.FirstName, vw.LastName, vw.Name as ExpenditureCategory,
vw.AvailableHours, vw.AllocatedHours, vw.TrainingHours, vw.VacationHours, 
vw.AvailableHours-vw.AllocatedHours-vw.TrainingHours-vw.VacationHours as ResourceAvailability, vw.TeamName 
From(

select pr.FirstName, 
pr.LastName,
ec2.Name, 
(select t.Name
from Team t
where pr.TeamId=t.Id) as TeamName,
((select UOM.UOMValue
from UOM, ExpenditureCategory ec
where UOM.Id=ec.UOMId and ec.Id=pr.ExpenditureCategoryId)*(DATEDIFF(WEEK, 
(case when pr.StartDate > @StartDate then pr.StartDate else @StartDate end), 
(case when pr.EndDate < @EndDate then pr.EndDate else @EndDate end)))) as AvailableHours, 
ISNULL((select SUM (pa.Quantity)
From PeopleResourceAllocation pa
Where pa.PeopleResourceId=pr.Id and pa.WeekEndingDate between @StartDate and @EndDate), 0) as AllocatedHours,
ISNULL((select SUM (pt.HoursOff)
From PeopleResourceTraining pt
Where pt.PeopleResourceId=pr.Id and pt.WeekEndingDate between @StartDate and @EndDate), 0) as TrainingHours,
ISNULL((select SUM (pv.HoursOff)
From PeopleResourceVacation pv
Where pv.PeopleResourceId=pr.Id and pv.WeekEndingDate between @StartDate and @EndDate), 0) as VacationHours
from PeopleResource pr, ExpenditureCategory ec2
where ec2.Id=pr.ExpenditureCategoryId) as vw 



  RETURN
END
GO