-- ============================================================================
-- S91 (2026-06-26) — GO-LIVE wipe: xóa data UAT cũ trước khi vận hành thật
-- Chỉ đạo: anh Kiệt FDC (Zalo "em chưa xoá data cũ giúp anh" + "múc nó phát em").
--          Go-live chính thức HÔM NAY 26/06 — Phase 01 Phòng Mua hàng (PRO) +
--          Phòng Kiểm soát chi phí (CCM). Quy trình destructive-prod chuẩn S85/S89:
--          recon -> AskUserQuestion chốt scope -> script committed -> backup -> chạy -> verify.
--
-- Recon prod 2026-06-26 (read-only): PE=16 · PeWorkItemBudgets=16 · Contracts=0 ·
--   Notifications=94 · Suppliers=26 (19 demo tháng 4 + 3 thật 06-09 + 4 thật 06-23) ·
--   Users=17 · Projects=70 · WorkItems=71 · Workflows=8 · PeSeq=1 · CtSeq=0.
--
-- Anh chốt (AskUserQuestion S91):
--   - PeWorkItemBudgets (16) -> XÓA hết (start fresh; PRO/CCM nhập lại khi có phiếu thật).
--   - Suppliers -> GIỮ 7 NCC THẬT (CreatedAt >= 2026-06-01: 3 ngày 06-09 + 4 ngày 06-23),
--     XÓA 19 demo (CreatedAt < 2026-06-01: NCC-TEST-002 + 18 seed tên-giả Vingroup/SunGroup…).
--     (Lưu ý: S85 cắt theo 06-11 = SAI cho lần này — 4 NCC thật nằm SAU 06-11. Dùng mốc 06-01:
--      toàn bộ demo ở tháng 4, toàn bộ NCC thật ở tháng 6 -> cắt 06-01 sạch, không nhập nhằng.)
--
-- XÓA:  16 PurchaseEvaluations (cascade child: Suppliers/Details/Quotes/Approvals/
--       Changelogs/Attachments/LevelOpinions/DeptOpinions) · 16 PeWorkItemBudgets
--       (loose-Guid per Dự-án×Hạng-mục — KHÔNG cascade -> DELETE riêng) · 0 Contracts ·
--       94 Notifications · 19 Suppliers demo (CreatedAt < 2026-06-01) · PeSeq + CtSeq reset
--       (DELETE row -> generator INSERT lại LastSeq=1 -> phiếu thật đầu = PE/2026/A/001).
-- GIỮ:  7 Suppliers thật · Projects 70 · WorkItems 71 · Users 17 · Permissions/MenuItems/
--       Roles · ApprovalWorkflows 8 (+Steps/Levels/Approvers — KHÔNG đụng config) ·
--       ContractTemplates · HRM/Office master · EmployeeCodeSequences · AuditLog (giữ trail).
-- FK:   PE child ALL CASCADE (proven S59/S85). Suppliers xóa SAU PE (đã giải phóng
--       SelectedSupplierId/Quotes). 7 NCC giữ đều unreferenced sau khi PE bị xóa.
-- GUARD: (a) PE > 16 -> ABORT (go-live day: có thể có phiếu THẬT mới tạo sau recon —
--           dừng để check, KHÔNG xóa nhầm phiếu thật). (b) Suppliers xóa <> 19 -> ROLLBACK.
-- Safety: SET XACT_ABORT ON + BACKUP bước 0 ngoài tran + chạy sqlcmd -b (backup fail -> abort
--         TRƯỚC wipe). Atomic: mọi guard fail -> ROLLBACK toàn bộ. Resurrect-safe: DemoSeed:Disabled.
-- Run:  scp -> VPS C:\temp\s91.sql ; sqlcmd -S .\SQLEXPRESS -d SolutionErp -E -i C:\temp\s91.sql -f 65001 -b
-- ============================================================================
SET QUOTED_IDENTIFIER ON;
SET ANSI_NULLS ON;
SET NOCOUNT ON;
SET XACT_ABORT ON;
GO

-- ===== 0. BACKUP insurance (NGOÀI transaction; -b -> fail thì abort trước wipe) =====
DECLARE @bkdir nvarchar(512), @bkfile nvarchar(600);
EXEC master.dbo.xp_instance_regread N'HKEY_LOCAL_MACHINE', N'Software\Microsoft\MSSQLServer\MSSQLServer', N'BackupDirectory', @bkdir OUTPUT;
SET @bkfile = @bkdir + N'\SolutionErp_S91_pregolivewipe.bak';
PRINT 'Backup device -> ' + @bkfile;
BACKUP DATABASE [SolutionErp] TO DISK = @bkfile WITH INIT, CHECKSUM, NAME = N'SolutionErp-S91-pre-golive-wipe';
GO

PRINT '=== BEFORE ===';
SELECT 'PE' AS T, COUNT(*) AS C FROM PurchaseEvaluations
UNION ALL SELECT 'PeWorkItemBudgets', COUNT(*) FROM PeWorkItemBudgets
UNION ALL SELECT 'Contracts', COUNT(*) FROM Contracts
UNION ALL SELECT 'Notifications', COUNT(*) FROM Notifications
UNION ALL SELECT 'Suppliers_total', COUNT(*) FROM Suppliers
UNION ALL SELECT 'Suppliers_demo(<06-01)', COUNT(*) FROM Suppliers WHERE CreatedAt < '2026-06-01'
UNION ALL SELECT 'Suppliers_real(>=06-01)', COUNT(*) FROM Suppliers WHERE CreatedAt >= '2026-06-01'
UNION ALL SELECT 'PeSeq', COUNT(*) FROM PurchaseEvaluationCodeSequences
UNION ALL SELECT 'CtSeq', COUNT(*) FROM ContractCodeSequences;
GO

BEGIN TRANSACTION;

-- GUARD A: go-live day — nếu có phiếu THẬT mới tạo sau recon (PE > 16) thì DỪNG, không xóa nhầm.
DECLARE @pe int = (SELECT COUNT(*) FROM PurchaseEvaluations);
IF @pe > 16
BEGIN
    ROLLBACK TRANSACTION;
    RAISERROR(N'GUARD-A FAIL: PE=%d > 16 (recon) — co the co phieu THAT moi tao sau recon. ABORT de check truoc khi xoa.', 16, 1, @pe);
    RETURN;
END;

-- 1. Phiếu PE (cascade child)
DELETE FROM PurchaseEvaluations;
PRINT '  PurchaseEvaluations deleted : ' + CAST(@@ROWCOUNT AS varchar);

-- 2. Ngân sách per-gói-thầu (loose-Guid, KHÔNG cascade theo PE)
DELETE FROM PeWorkItemBudgets;
PRINT '  PeWorkItemBudgets deleted   : ' + CAST(@@ROWCOUNT AS varchar);

-- 3. Hợp đồng (cascade child) — recon = 0
DELETE FROM Contracts;
PRINT '  Contracts deleted           : ' + CAST(@@ROWCOUNT AS varchar);

-- 4. Thông báo
DELETE FROM Notifications;
PRINT '  Notifications deleted       : ' + CAST(@@ROWCOUNT AS varchar);

-- 5. NCC demo (CreatedAt < 2026-06-01) — giữ 7 NCC thật (tháng 6)
DELETE FROM Suppliers WHERE CreatedAt < '2026-06-01';
DECLARE @supdel int = @@ROWCOUNT;
PRINT '  Suppliers demo deleted      : ' + CAST(@supdel AS varchar);

-- GUARD B: phải xóa đúng 19 demo. Lệch -> rollback (chống xóa nhầm/sót).
IF @supdel <> 19
BEGIN
    ROLLBACK TRANSACTION;
    RAISERROR(N'GUARD-B FAIL: Suppliers demo deleted=%d <> 19. ROLLBACK toan bo.', 16, 1, @supdel);
    RETURN;
END;

-- 6. Reset bộ đếm mã (DELETE row -> generator INSERT lại LastSeq=1 -> .../001)
DELETE FROM PurchaseEvaluationCodeSequences;
DELETE FROM ContractCodeSequences;
PRINT '  Code sequences reset (Pe+Ct)';

PRINT '=== AFTER (expect PE/budgets/notif/contracts=0, Suppliers=7, master giữ) ===';
SELECT 'PE' AS T, COUNT(*) AS C FROM PurchaseEvaluations
UNION ALL SELECT 'PeWorkItemBudgets', COUNT(*) FROM PeWorkItemBudgets
UNION ALL SELECT 'PeSuppliers', COUNT(*) FROM PurchaseEvaluationSuppliers
UNION ALL SELECT 'PeQuotes', COUNT(*) FROM PurchaseEvaluationQuotes
UNION ALL SELECT 'PeAttachments', COUNT(*) FROM PurchaseEvaluationAttachments
UNION ALL SELECT 'PeChangelogs', COUNT(*) FROM PurchaseEvaluationChangelogs
UNION ALL SELECT 'Contracts', COUNT(*) FROM Contracts
UNION ALL SELECT 'Notifications', COUNT(*) FROM Notifications
UNION ALL SELECT 'Suppliers_keep', COUNT(*) FROM Suppliers
UNION ALL SELECT 'PeSeq', COUNT(*) FROM PurchaseEvaluationCodeSequences
UNION ALL SELECT 'CtSeq', COUNT(*) FROM ContractCodeSequences
UNION ALL SELECT 'KEEP_Projects', COUNT(*) FROM Projects
UNION ALL SELECT 'KEEP_WorkItems', COUNT(*) FROM WorkItems
UNION ALL SELECT 'KEEP_Users', COUNT(*) FROM Users
UNION ALL SELECT 'KEEP_Workflows', COUNT(*) FROM ApprovalWorkflows;

PRINT '=== Suppliers GIỮ (7 NCC thật) ===';
SELECT Name, CreatedAt FROM Suppliers ORDER BY CreatedAt;

COMMIT TRANSACTION;
PRINT 'S91 go-live wipe COMMITTED.';
GO