using Microsoft.Extensions.Configuration;
using OI.Metrology.Shared.Repositories;
using System;
using System.Data.Common;
using System.Data.SqlClient;

namespace OI.Metrology.Archive.Repositories;

public class SQLDbConnectionFactory : IDbConnectionFactory
{
    private IConfiguration Config { get; }

    public SQLDbConnectionFactory(IConfiguration config) => Config = config;

    public DbConnection GetDbConnection(String connStringName)
    {
        DbProviderFactories.RegisterFactory(
            typeof(SqlConnection).Namespace,
            SqlClientFactory.Instance);

        string connStr = Config?.GetConnectionString(connStringName);
        if (connStr is null)
            throw new Exception("Connection string is missing: " + connStringName);

        DbConnection c = SqlClientFactory.Instance.CreateConnection();
        c.ConnectionString = connStr;
        c.Open();
        return c;
    }
}