USP_CONSTITUENCYDATERANGE_REFRESHEVENTREGISTRANTCONSTITUENCY

CREATE procedure dbo.USP_CONSTITUENCYDATERANGE_REFRESHEVENTREGISTRANTCONSTITUENCY
(
    @CONSTITUENTID uniqueidentifier = null,
    @CONSTITUENCYREFRESHPROCESSID uniqueidentifier = null,
    @RECORDCOUNT int = 0 output
)
as
begin
    set nocount on;

    set @RECORDCOUNT = 0;

    declare @CURRENTDATE datetime = getdate();

    declare @EVENTREGISTRANTDEFINITIONID uniqueidentifier = 'C49D4B46-72A7-4206-91AA-BEABA2323E3C';

    begin try
        if @CONSTITUENTID is not null and @CONSTITUENCYREFRESHPROCESSID is not null
        begin
            raiserror('ERR_REFRESH_CONSTITUENTANDSELECTION : A constituency refresh cannot be run with both a specific constituent and a selection.', 13, 1);
        end

        if @CONSTITUENCYREFRESHPROCESSID is null and @CONSTITUENTID is null
        begin
            insert into dbo.CONSTITUENCYDATERANGE
            (
                ID,
                CONSTITUENTID,
                CONSTITUENCYDEFINITIONID,
                DATEFROM,
                REFRESHDATE
            )
            select
                newid(),
                REGISTRANT.CONSTITUENTID,
                @EVENTREGISTRANTDEFINITIONID,
                cast(min(REGISTRANT.DATEADDED) as date),
                @CURRENTDATE
            from
                dbo.REGISTRANT
                left join dbo.CONSTITUENCYDATERANGE
                    on CONSTITUENCYDATERANGE.CONSTITUENTID = REGISTRANT.CONSTITUENTID
                    and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID
            where
                CONSTITUENCYDATERANGE.ID is null
                and REGISTRANT.CONSTITUENTID is not null
            group by
                REGISTRANT.CONSTITUENTID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;

            update dbo.CONSTITUENCYDATERANGE
            set
                CONSTITUENCYDATERANGE.DATEFROM = EVENTREGISTRANT.DATEFROM,
                REFRESHDATE = @CURRENTDATE
            from
                dbo.CONSTITUENCYDATERANGE
                inner join (
                    select
                        REGISTRANT.CONSTITUENTID,
                        cast(min(REGISTRANT.DATEADDED) as date) as DATEFROM
                    from
                        dbo.REGISTRANT
                    group by
                        REGISTRANT.CONSTITUENTID
                    ) EVENTREGISTRANT
                    on EVENTREGISTRANT.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
            where
                CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;

            delete dbo.CONSTITUENCYDATERANGE
            from
                dbo.CONSTITUENCYDATERANGE
                left join REGISTRANT
                    on REGISTRANT.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
            where
                REGISTRANT.CONSTITUENTID is null
                and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;
        end
        else if @CONSTITUENCYREFRESHPROCESSID is null
        begin
            insert into dbo.CONSTITUENCYDATERANGE
            (
                ID,
                CONSTITUENTID,
                CONSTITUENCYDEFINITIONID,
                DATEFROM,
                REFRESHDATE
            )
            select
                newid(),
                REGISTRANT.CONSTITUENTID,
                @EVENTREGISTRANTDEFINITIONID,
                cast(min(REGISTRANT.DATEADDED) as date),
                @CURRENTDATE
            from
                dbo.REGISTRANT
                left join dbo.CONSTITUENCYDATERANGE
                    on CONSTITUENCYDATERANGE.CONSTITUENTID = REGISTRANT.CONSTITUENTID
                    and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID
            where
                REGISTRANT.CONSTITUENTID = @CONSTITUENTID
                and CONSTITUENCYDATERANGE.ID is null
            group by
                REGISTRANT.CONSTITUENTID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;

            update dbo.CONSTITUENCYDATERANGE
            set
                CONSTITUENCYDATERANGE.DATEFROM = EVENTREGISTRANT.DATEFROM,
                REFRESHDATE = @CURRENTDATE
            from
                dbo.CONSTITUENCYDATERANGE
                inner join (
                    select
                        REGISTRANT.CONSTITUENTID,
                        cast(min(REGISTRANT.DATEADDED) as date) as DATEFROM
                    from
                        dbo.REGISTRANT
                    group by
                        REGISTRANT.CONSTITUENTID
                    ) EVENTREGISTRANT
                    on EVENTREGISTRANT.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
            where
                CONSTITUENCYDATERANGE.CONSTITUENTID = @CONSTITUENTID
                and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;

            delete dbo.CONSTITUENCYDATERANGE
            from
                dbo.CONSTITUENCYDATERANGE
                left join REGISTRANT
                    on REGISTRANT.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
            where
                CONSTITUENCYDATERANGE.CONSTITUENTID = @CONSTITUENTID
                and REGISTRANT.ID is null
                and REGISTRANT.CONSTITUENTID is null
                and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;
        end
        else
        begin
            insert into dbo.CONSTITUENCYDATERANGE
            (
                ID,
                CONSTITUENTID,
                CONSTITUENCYDEFINITIONID,
                DATEFROM,
                REFRESHDATE
            )
            select
                newid(),
                REGISTRANT.CONSTITUENTID,
                @EVENTREGISTRANTDEFINITIONID,
                cast(min(REGISTRANT.DATEADDED) as date),
                @CURRENTDATE
            from
                dbo.REGISTRANT
                left join dbo.CONSTITUENCYDATERANGE
                    on CONSTITUENCYDATERANGE.CONSTITUENTID = REGISTRANT.CONSTITUENTID
                    and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID
                inner join dbo.CONSTITUENCYREFRESHPROCESSSELECTIONRESULT CONSTITUENTS
                    on CONSTITUENTS.CONSTITUENTID = REGISTRANT.CONSTITUENTID
                    and CONSTITUENTS.CONSTITUENCYREFRESHPROCESSID = @CONSTITUENCYREFRESHPROCESSID
            where
                CONSTITUENCYDATERANGE.ID is null
            group by
                REGISTRANT.CONSTITUENTID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;

            update dbo.CONSTITUENCYDATERANGE
            set
                CONSTITUENCYDATERANGE.DATEFROM = EVENTREGISTRANT.DATEFROM,
                REFRESHDATE = @CURRENTDATE
            from
                dbo.CONSTITUENCYDATERANGE
                inner join (
                    select
                        REGISTRANT.CONSTITUENTID,
                        cast(min(REGISTRANT.DATEADDED) as date) as DATEFROM
                    from
                        dbo.REGISTRANT
                    group by
                        REGISTRANT.CONSTITUENTID
                    ) EVENTREGISTRANT
                    on EVENTREGISTRANT.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
                inner join dbo.CONSTITUENCYREFRESHPROCESSSELECTIONRESULT CONSTITUENTS
                    on CONSTITUENTS.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
                    and CONSTITUENTS.CONSTITUENCYREFRESHPROCESSID = @CONSTITUENCYREFRESHPROCESSID
            where
                CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;

            delete dbo.CONSTITUENCYDATERANGE
            from
                dbo.CONSTITUENCYDATERANGE
                left join REGISTRANT
                    on REGISTRANT.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
                inner join dbo.CONSTITUENCYREFRESHPROCESSSELECTIONRESULT CONSTITUENTS
                    on CONSTITUENTS.CONSTITUENTID = CONSTITUENCYDATERANGE.CONSTITUENTID
                    and CONSTITUENTS.CONSTITUENCYREFRESHPROCESSID = @CONSTITUENCYREFRESHPROCESSID
            where
                REGISTRANT.CONSTITUENTID is null
                and CONSTITUENCYDATERANGE.CONSTITUENCYDEFINITIONID = @EVENTREGISTRANTDEFINITIONID;
            set @RECORDCOUNT = @RECORDCOUNT + @@ROWCOUNT;
        end
    end try
    begin catch
        exec dbo.USP_RAISE_ERROR;
        return 1;
    end catch

    return 0;
end