oi-metrology/Server/Services/SQLDbConnectionFactory.cs

using OI.Metrology.Server.Models;
using OI.Metrology.Shared.Repositories;
using System.Data.Common;
using System.Data.SqlClient;

#pragma warning disable CS8600, CS8602, CS8603, CS8604, CS8625

namespace OI.Metrology.Server.Services;

public class SQLDbConnectionFactory : IDbConnectionFactory
{
    private readonly AppSettings _AppSettings;

    public SQLDbConnectionFactory(AppSettings appSettings) => _AppSettings = appSettings;

    public DbConnection GetDbConnection(bool? useOI2Sql)
    {
        DbProviderFactories.RegisterFactory(
            typeof(SqlConnection).Namespace,
            SqlClientFactory.Instance);

        if (string.IsNullOrEmpty(_AppSettings.ConnectionString))
            throw new Exception("Connection string is missing");

        if (string.IsNullOrEmpty(_AppSettings.OI2SqlConnectionString))
            throw new Exception("Connection string is missing");

        DbConnection dbConnection = SqlClientFactory.Instance.CreateConnection();
        dbConnection.ConnectionString = useOI2Sql is not null && useOI2Sql.Value ? _AppSettings.OI2SqlConnectionString : _AppSettings.ConnectionString;
        dbConnection.Open();
        return dbConnection;
    }
}