using System;
using System.Windows.Forms;
using MySql.Data.MySqlClient;
using Results;

namespace TBF.Forms
{
    public partial class UpgradeSelectionDlg : Form
    {
        int batchFrom;
        int batchTo;

        public UpgradeSelectionDlg()
        {
            InitializeComponent();
            batchFrom = 1;
            batchTo = Program.LocalSettings.BatchNr - 1;
        }

        private void upgradeDbButton_Click(object sender, EventArgs e)
        {
            string[] commands = new string[]
            {
                "ALTER TABLE `testrslt` ADD `ErrorFlagsMd` TINYINT( 4 ) NOT NULL DEFAULT '0' AFTER `ErrorMaster`, ADD `ErrorFlags` INT NOT NULL DEFAULT '0' AFTER `ErrorFlagsMd`, ADD `DiverterStart` FLOAT NOT NULL DEFAULT '0.001' AFTER `ErrorMaster`, ADD `DiverterEnd` FLOAT NOT NULL DEFAULT '0.001' AFTER `DiverterStart`;",
                "ALTER TABLE `watermeter` ADD `ErrorFlags` INT NOT NULL DEFAULT '0' AFTER `QFall`;",
            };

            if (Common(new MySqlConnection(Results.DB.ConnectionString), commands))
            {
                upgradeDbButton.Enabled = false;
            }
        }

        private void upgradeDb_216_217_Button_Click(object sender, EventArgs e)
        {
            string[] commands = new string[]
            {
                "ALTER TABLE `testrslt` ADD `DiverterStart` FLOAT NOT NULL DEFAULT '0.001' AFTER `ErrorMaster`, ADD `DiverterEnd` FLOAT NOT NULL DEFAULT '0.001' AFTER `DiverterStart`;",
                "ALTER TABLE `watermeter` ADD `ErrorFlags` INT NOT NULL DEFAULT '0' AFTER `QFall`;",
            };

            if (Common(new MySqlConnection(Results.DB.ConnectionString), commands))
            {
                upgradeDb_216_217_Button.Enabled = false;
            }
        }

        bool Common(MySqlConnection dbConn, string[] commands)
        {
            bool success = false;
            
            try
            {
                dbConn.Open();

                foreach (var cmdText in commands)
                {
                    MySqlCommand cmd = dbConn.CreateCommand();
                    cmd.CommandText = cmdText;
                    cmd.ExecuteNonQuery();
                }

                MessageBox.Show("DB succesfully upgraded", "Confirmation", MessageBoxButtons.OK, MessageBoxIcon.Information);
                success = true;
            }
            catch (Exception exc)
            {
                MessageBox.Show(string.Format("Exception {0}", exc.Message), "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            }
            finally
            {
                dbConn.Close();
            }

            return success;
        }
    }
}