From 81715bf0ca8ffc5a6e142d3e5e3036aeeeebe60f Mon Sep 17 00:00:00 2001
From: admin <admin@afrino.co>
Date: Fri, 9 Oct 2026 23:02:31 +0330
Subject: [PATCH] Fix SurahExplicitIds migration for SQL Server IDENTITY
 removal.

Recreate Surahs table without IDENTITY instead of unsupported ALTER COLUMN.
---
 .../20261009192702_SurahExplicitIds.cs        | 87 +++++++++++++++----
 1 file changed, 71 insertions(+), 16 deletions(-)

diff --git a/src/TafsirQuran.Infrastructure/Persistence/Migrations/20261009192702_SurahExplicitIds.cs b/src/TafsirQuran.Infrastructure/Persistence/Migrations/20261009192702_SurahExplicitIds.cs
index 3d1b954..66d3b5b 100644
--- a/src/TafsirQuran.Infrastructure/Persistence/Migrations/20261009192702_SurahExplicitIds.cs
+++ b/src/TafsirQuran.Infrastructure/Persistence/Migrations/20261009192702_SurahExplicitIds.cs
@@ -10,27 +10,82 @@ namespace TafsirQuran.Infrastructure.Persistence.Migrations
         /// <inheritdoc />
         protected override void Up(MigrationBuilder migrationBuilder)
         {
-            migrationBuilder.AlterColumn<int>(
-                name: "Id",
-                table: "Surahs",
-                type: "int",
-                nullable: false,
-                oldClrType: typeof(int),
-                oldType: "int")
-                .OldAnnotation("SqlServer:Identity", "1, 1");
+            // SQL Server cannot ALTER IDENTITY off a column; recreate Surahs without identity.
+            migrationBuilder.Sql("""
+                IF OBJECT_ID(N'[FK_Ayahs_Surahs_SurahId]', N'F') IS NOT NULL
+                    ALTER TABLE [Ayahs] DROP CONSTRAINT [FK_Ayahs_Surahs_SurahId];
+                IF OBJECT_ID(N'[FK_Episodes_Surahs_SurahId]', N'F') IS NOT NULL
+                    ALTER TABLE [Episodes] DROP CONSTRAINT [FK_Episodes_Surahs_SurahId];
+
+                IF OBJECT_ID(N'[Surahs]', N'U') IS NOT NULL
+                BEGIN
+                    SELECT * INTO [#SurahsBackup] FROM [Surahs];
+                    DROP TABLE [Surahs];
+                END
+
+                CREATE TABLE [Surahs] (
+                    [Id] int NOT NULL,
+                    [Number] int NOT NULL,
+                    [NameAr] nvarchar(80) NOT NULL,
+                    [NameFa] nvarchar(80) NOT NULL,
+                    CONSTRAINT [PK_Surahs] PRIMARY KEY ([Id])
+                );
+
+                CREATE UNIQUE INDEX [IX_Surahs_Number] ON [Surahs] ([Number]);
+
+                IF OBJECT_ID(N'tempdb..#SurahsBackup') IS NOT NULL
+                BEGIN
+                    INSERT INTO [Surahs] ([Id], [Number], [NameAr], [NameFa])
+                    SELECT [Id], [Number], [NameAr], [NameFa] FROM [#SurahsBackup];
+                    DROP TABLE [#SurahsBackup];
+                END
+
+                ALTER TABLE [Ayahs] WITH CHECK ADD CONSTRAINT [FK_Ayahs_Surahs_SurahId]
+                    FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
+                ALTER TABLE [Episodes] WITH CHECK ADD CONSTRAINT [FK_Episodes_Surahs_SurahId]
+                    FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
+                """);
         }
 
         /// <inheritdoc />
         protected override void Down(MigrationBuilder migrationBuilder)
         {
-            migrationBuilder.AlterColumn<int>(
-                name: "Id",
-                table: "Surahs",
-                type: "int",
-                nullable: false,
-                oldClrType: typeof(int),
-                oldType: "int")
-                .Annotation("SqlServer:Identity", "1, 1");
+            migrationBuilder.Sql("""
+                IF OBJECT_ID(N'[FK_Ayahs_Surahs_SurahId]', N'F') IS NOT NULL
+                    ALTER TABLE [Ayahs] DROP CONSTRAINT [FK_Ayahs_Surahs_SurahId];
+                IF OBJECT_ID(N'[FK_Episodes_Surahs_SurahId]', N'F') IS NOT NULL
+                    ALTER TABLE [Episodes] DROP CONSTRAINT [FK_Episodes_Surahs_SurahId];
+
+                IF OBJECT_ID(N'[Surahs]', N'U') IS NOT NULL
+                BEGIN
+                    SELECT * INTO [#SurahsBackup] FROM [Surahs];
+                    DROP TABLE [Surahs];
+                END
+
+                CREATE TABLE [Surahs] (
+                    [Id] int NOT NULL IDENTITY(1,1),
+                    [Number] int NOT NULL,
+                    [NameAr] nvarchar(80) NOT NULL,
+                    [NameFa] nvarchar(80) NOT NULL,
+                    CONSTRAINT [PK_Surahs] PRIMARY KEY ([Id])
+                );
+
+                CREATE UNIQUE INDEX [IX_Surahs_Number] ON [Surahs] ([Number]);
+
+                IF OBJECT_ID(N'tempdb..#SurahsBackup') IS NOT NULL
+                BEGIN
+                    SET IDENTITY_INSERT [Surahs] ON;
+                    INSERT INTO [Surahs] ([Id], [Number], [NameAr], [NameFa])
+                    SELECT [Id], [Number], [NameAr], [NameFa] FROM [#SurahsBackup];
+                    SET IDENTITY_INSERT [Surahs] OFF;
+                    DROP TABLE [#SurahsBackup];
+                END
+
+                ALTER TABLE [Ayahs] WITH CHECK ADD CONSTRAINT [FK_Ayahs_Surahs_SurahId]
+                    FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
+                ALTER TABLE [Episodes] WITH CHECK ADD CONSTRAINT [FK_Episodes_Surahs_SurahId]
+                    FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
+                """);
         }
     }
 }