using System;
using System.Data;

namespace EnvelopeGenerator.CommonServices.Jobs;

public static class DataRowExtensions
{
    public static T? GetValueOrDefault<T>(this DataRow row, string columnName, T? defaultValue = default)
    {
        if (!row.Table.Columns.Contains(columnName))
        {
            return defaultValue;
        }

        var value = row[columnName];
        if (value == DBNull.Value)
        {
            return defaultValue;
        }

        try
        {
            return (T)Convert.ChangeType(value, typeof(T));
        }
        catch
        {
            return defaultValue;
        }
    }
}