CREATE OR ALTER VIEW [dbo].[Hr_V_LeaveSummary]
AS
-- Çalışan başına yıllık izin bakiyesi; defterin (Hr_V_LeaveBalanceYear) toplamıdır.
-- Kalan = hak edilen + düzeltme − onaylı kullanılan; Kullanılabilir = kalan − onay bekleyen.
SELECT u.Id,
       u.TenantId,
       u.Id AS EmployeeId,
       CONCAT(u.Name, N' ', u.Surname) AS EmployeeName,
       u.DepartmentId,
       u.JobPositionId,
       CAST(COALESCE(u.SeniorityStartDate, u.HireDate) AS date) AS SeniorityStartDate,
       CASE
           WHEN COALESCE(u.SeniorityStartDate, u.HireDate) IS NULL THEN NULL
           ELSE DATEDIFF(year, COALESCE(u.SeniorityStartDate, u.HireDate), GETDATE())
                - CASE WHEN DATEADD(year, DATEDIFF(year, COALESCE(u.SeniorityStartDate, u.HireDate), GETDATE()),
                                    COALESCE(u.SeniorityStartDate, u.HireDate)) > GETDATE() THEN 1 ELSE 0 END
       END AS ServiceYears,
       CAST(COALESCE(SUM(CASE WHEN l.YearNo > 0 THEN l.EntitledDays END), 0) AS decimal(9, 1)) AS EntitledDays,
       CAST(COALESCE(SUM(CASE WHEN l.YearNo = 0 THEN l.EntitledDays END), 0) AS decimal(9, 1)) AS AdjustmentDays,
       CAST(COALESCE(SUM(l.UsedDays), 0) AS decimal(9, 1)) AS UsedDays,
       CAST(COALESCE(SUM(l.PendingDays), 0) AS decimal(9, 1)) AS PendingDays,
       CAST(COALESCE(SUM(l.EntitledDays - l.UsedDays), 0) AS decimal(9, 1)) AS RemainingDays,
       CAST(COALESCE(SUM(l.EntitledDays - l.UsedDays - l.PendingDays), 0) AS decimal(9, 1)) AS AvailableDays,
       MAX(l.NextAccrualDate) AS NextAccrualDate,
       MAX(l.NextAccrualDays) AS NextAccrualDays,
       u.IsActive
FROM AbpUsers u
LEFT JOIN Hr_V_LeaveBalanceYear l ON l.EmployeeId = u.Id
WHERE u.IsDeleted = 0
GROUP BY u.Id, u.TenantId, u.Name, u.Surname, u.DepartmentId, u.JobPositionId,
         u.SeniorityStartDate, u.HireDate, u.IsActive
GO