feat(wizard): ✨ Added the ability to start with a different database (#5208)

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

Author: tidusjar

src/.idea/.idea.Ombi/.idea/indexLayout.xml

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+using System;
+using System.Text;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Storage;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Storage.Internal;
+using Ombi.Core.Models;
+using Polly;
+using Pomelo.EntityFrameworkCore.MySql.Storage.Internal;
+
+namespace Ombi.Core.Helpers;
+
+public static class DatabaseConfigurationSetup
+{
+    public static void ConfigurePostgres(DbContextOptionsBuilder options, PerDatabaseConfiguration config)
+    {
+        options.UseNpgsql(config.ConnectionString, b =>
+        {
+            b.EnableRetryOnFailure();
+        }).ReplaceService<ISqlGenerationHelper, NpgsqlCaseInsensitiveSqlGenerationHelper>();
+    }
+    
+    public static void ConfigureMySql(DbContextOptionsBuilder options, PerDatabaseConfiguration config)
+    {
+        if (string.IsNullOrEmpty(config.ConnectionString))
+        {
+            throw new ArgumentNullException("ConnectionString for the MySql/Mariadb database is empty");
+        }
+
+        options.UseMySql(config.ConnectionString, GetServerVersion(config.ConnectionString), b =>
+        {
+            //b.CharSetBehavior(Pomelo.EntityFrameworkCore.MySql.Infrastructure.CharSetBehavior.NeverAppend); // ##ISSUE, link to migrations?
+            b.EnableRetryOnFailure();
+        });
+    }
+    
+    private static ServerVersion GetServerVersion(string connectionString)
+    {
+        // Workaround Windows bug, that can lead to the following exception:
+        //
+        // MySqlConnector.MySqlException (0x80004005): SSL Authentication Error
+        //     ---> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception.
+        //     ---> System.ComponentModel.Win32Exception (0x8009030F): The message or signature supplied for verification has been altered
+        //
+        // See https://github.com/dotnet/runtime/issues/17005#issuecomment-305848835
+        //
+        // Also workaround for the fact, that ServerVersion.AutoDetect() does not use any retrying strategy.
+        ServerVersion serverVersion = null;
+#pragma warning disable EF1001
+        var retryPolicy = Policy.Handle<Exception>(exception => MySqlTransientExceptionDetector.ShouldRetryOn(exception))
+#pragma warning restore EF1001
+            .WaitAndRetry(3, (count, context) => TimeSpan.FromMilliseconds(count * 250));
+
+        serverVersion = retryPolicy.Execute(() => serverVersion = ServerVersion.AutoDetect(connectionString));
+
+        return serverVersion;
+    }
+    public class NpgsqlCaseInsensitiveSqlGenerationHelper : NpgsqlSqlGenerationHelper
+    {
+        const string EFMigrationsHisory = "__EFMigrationsHistory";
+        public NpgsqlCaseInsensitiveSqlGenerationHelper(RelationalSqlGenerationHelperDependencies dependencies)
+            : base(dependencies) { }
+        public override string DelimitIdentifier(string identifier) =>
+            base.DelimitIdentifier(identifier == EFMigrationsHisory ? identifier : identifier.ToLower());
+        public override void DelimitIdentifier(StringBuilder builder, string identifier)
+            => base.DelimitIdentifier(builder, identifier == EFMigrationsHisory ? identifier : identifier.ToLower());
+    }
+}

src/.idea/.idea.Ombi/.idea/workspace.xml

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+namespace Ombi.Core.Helpers;
+
+public class FileSystem : IFileSystem
+{
+    public bool FileExists(string path)
+    {
+        return System.IO.File.Exists(path);
+    }
+    // Implement other file system operations as needed
+}

src/Ombi.Core/Helpers/DatabaseConfigurationSetup.cs

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+namespace Ombi.Core.Helpers;
+
+public interface IFileSystem
+{
+    bool FileExists(string path);
+    // Add other file system operations as needed
+}