using System.Data;
using System.Data.SqlClient;
using SDA.DataProvider.Core;

namespace SDA.DataProvider.MSSQLWrappers
{
    class MSSQLCommandParameterCollectionWrapper : SDACommandParameterCollectionWrapper
    {
        internal SqlParameterCollection Parameters
        {
            get
            {
                return Command.Parameters;
            }
        }

        public override bool Contains(SDACommandParameterWrapper parameter)
        {
            return Parameters.Contains("@" + parameter.ParameterName);
        }

        public override int IndexOf(SDACommandParameterWrapper parameter)
        {
            return Parameters.IndexOf("@" + parameter.ParameterName);
        }

        internal SqlCommand Command;

        internal MSSQLCommandParameterCollectionWrapper(SqlCommand command)
        {
            Command = command;
        }

        public override SDACommandParameterWrapper this[string parameterName]
        {
            get
            {
                if (!Parameters.Contains("@" + parameterName))
                {
                    return null;
                }
                SqlParameter parameter = Parameters["@" + parameterName];
                return new MSSQLCommandParameterWrapper(parameter);
            }
            set
            {
                Parameters["@" + parameterName] = ((MSSQLCommandParameterWrapper)value).Parameter;
            }
        }

        public override SDACommandParameterWrapper this[int index]
        {
            get
            {
                return new MSSQLCommandParameterWrapper(Parameters[index]);
            }
            set
            {
                Parameters[index] = ((MSSQLCommandParameterWrapper)value).Parameter;
            }
        }

        public override SDACommandParameterWrapper Add(SDACommandParameterWrapper parameter)
        {
            Parameters.Add(((MSSQLCommandParameterWrapper)parameter).Parameter);
            return parameter;
        }

        public override SDACommandParameterWrapper Add(string name, SDADBType type)
        {
            SqlDbType dbtype = MSSQLParameterTypeConverter.ConvertSDADBTypeToSqlDbType(type);
            MSSQLCommandParameterWrapper result = new MSSQLCommandParameterWrapper(Command.Parameters.Add("@" + name, dbtype));
            return result;
        }

        public override SDACommandParameterWrapper Add(string name, SDADBType type, int size)
        {
            SqlDbType dbtype = MSSQLParameterTypeConverter.ConvertSDADBTypeToSqlDbType(type);
            MSSQLCommandParameterWrapper result = new MSSQLCommandParameterWrapper(Command.Parameters.Add("@" + name, dbtype, size));
            return result;
        }

        public override SDACommandParameterWrapper Add(string name, object value)
        {
            MSSQLCommandParameterWrapper result = new MSSQLCommandParameterWrapper(Command.Parameters.AddWithValue("@" + name, value));
            return result;
        }

        public override void Remove(SDACommandParameterWrapper parameter)
        {
            Command.Parameters.Remove(((MSSQLCommandParameterWrapper)parameter).Parameter);
        }

        public override void Clear()
        {
            Command.Parameters.Clear();
        }

        public override int Count
        {
            get
            {
                return Parameters.Count;
            }
        }

    }
}