EnvelopeGenerator/EnvelopeGenerator.ServiceHost/Jobs/Infrastructure/Database.cs

using System.Data;
using Microsoft.Data.SqlClient;

namespace EnvelopeGenerator.ServiceHost.Jobs.Infrastructure;

public class MSSQLServer(IConfiguration configuration)
{
    private readonly string _connectionString = configuration.GetConnectionString("Default") 
        ?? throw new InvalidOperationException("Connection string 'Default' not found.");

    public static string DecryptConnectionString(string connectionString) => connectionString;

    public SqlConnection GetConnection
    {
        get
        {
            var connection = new SqlConnection(_connectionString);
            if (connection.State != ConnectionState.Open)
            {
                connection.Open();
            }

            return connection;
        }
    }

    public DataTable GetDatatable(string sql)
    {
        using var connection = new SqlConnection(_connectionString);
        using var command = new SqlCommand(sql, connection);
        using var adapter = new SqlDataAdapter(command);
        var table = new DataTable();
        adapter.Fill(table);
        return table;
    }

    public object? GetScalarValue(string sql)
    {
        using var connection = new SqlConnection(_connectionString);
        using var command = new SqlCommand(sql, connection);
        connection.Open();
        return command.ExecuteScalar();
    }

    public bool ExecuteNonQuery(string sql)
    {
        using var connection = new SqlConnection(_connectionString);
        using var command = new SqlCommand(sql, connection);
        connection.Open();
        return command.ExecuteNonQuery() > 0;
    }

    public bool ExecuteNonQuery(SqlCommand command)
    {
        using var connection = new SqlConnection(_connectionString);
        command.Connection = connection;
        connection.Open();
        return command.ExecuteNonQuery() > 0;
    }
}