using System;
using Microsoft.Data.SqlClient;

namespace DAL
{
    public class DALLconexao : IDisposable
    {
        private string _stringConexao;
        private SqlConnection _conexao;
        private SqlTransaction? _transaction;
        public void Dispose()
        {
            _transaction?.Dispose();
            _conexao?.Dispose();
        }

        public DALLconexao(string dadosConexao)
        {
            _stringConexao = dadosConexao;
            _conexao = new SqlConnection(_stringConexao);
        }


        public string StringConexao
        {
            get { return _stringConexao; }
            set { _stringConexao = value; }
        }

        public SqlConnection ObjetoConexao
        {
            get { return _conexao; }
            set { _conexao = value; }
        }

        public SqlTransaction? ObjetoTransaction
        {
            get { return _transaction; }
            set { _transaction = value; }
        }

        public void Conectar()
        {
            if (_conexao.State != System.Data.ConnectionState.Open)
                _conexao.Open();
        }

        public void Desconectar()
        {
            if (_conexao.State != System.Data.ConnectionState.Closed)
                _conexao.Close();
        }

        public void IniciarTransacao()
        {
            if (_conexao.State != System.Data.ConnectionState.Open)
                _conexao.Open();

            _transaction = _conexao.BeginTransaction();
        }

        public void TerminarTransacao()
        {
            _transaction?.Commit();
            _transaction = null;
        }

        public void CancelarTransacao()
        {
            try { _transaction?.Rollback(); }
            catch { /* log aqui futuramente */ }
            finally { _transaction = null; }
        }
    }
}