using System;
using System.Collections.Generic;

namespace Kit.Helpers.SqlHelperAbstract
{

    public interface ISqlHelper
    {
        void ExecuteNonQuery(RequestParams requestParams);
        object ExecuteScalar(RequestParams requestParams);
        TResult ExecuteScalar<TResult>(RequestParams requestParams);
        IEnumerable<TEntity> ExecuteSelectMany<TEntity>(RequestParamsSelect<TEntity> requestParams);
        IEnumerableWithPage<TEntity> ExecuteSelectManyWithPage<TEntity>(RequestParamsSelect<TEntity> requestParams);
        IEnumerableWithOffer<TEntity> ExecuteSelectManyWithOffer<TEntity>(RequestParamsSelect<TEntity> requestParams);
    }

    public static class SqlHelper
    {
        #region ExecuteNonQuery

        public static void ExecuteNonQuery(this IConnectionString connectionString, string sql, bool isStoredProcedure,
            bool withStrictSyntax = false, IEnumerable<KeyValuePair<string, object>> parameters = null, IEnumerable<CustomType> customTypes = null)
        {
            var requestParams = new RequestParams(connectionString, sql, isStoredProcedure,
                withStrictSyntax, parameters, customTypes);
            connectionString.GetSqlHelper().ExecuteNonQuery(requestParams);
        }

        #endregion

        #region ExecuteScalar

        public static object ExecuteScalar(this IConnectionString connectionString, string sql, bool isStoredProcedure,
            bool withStrictSyntax = false, IEnumerable<KeyValuePair<string, object>> parameters = null, IEnumerable<CustomType> customTypes = null)
        {
            var requestParams = new RequestParams(connectionString, sql, isStoredProcedure,
                withStrictSyntax, parameters, customTypes);
            return connectionString.GetSqlHelper().ExecuteScalar(requestParams);
        }

        public static TEntity ExecuteScalar<TEntity>(this IConnectionString connectionString, string sql, bool isStoredProcedure,
            bool withStrictSyntax = false, IEnumerable<KeyValuePair<string, object>> parameters = null, IEnumerable<CustomType> customTypes = null)
        {
            var requestParams = new RequestParams(connectionString, sql, isStoredProcedure,
                withStrictSyntax, parameters, customTypes);
            return connectionString.GetSqlHelper().ExecuteScalar<TEntity>(requestParams);
        }

        #endregion

        #region ExecuteSelectMany

        public static IEnumerable<TEntity> ExecuteSelectMany<TEntity>(this IConnectionString connectionString, string sql, bool isStoredProcedure,
            bool withStrictSyntax = false, IEnumerable<KeyValuePair<string, object>> parameters = null, IEnumerable<CustomType> customTypes = null,
            params Action<IDataRecordSpecified, IList<TEntity>>[] converters)
        {
            var requestParams = new RequestParamsSelect<TEntity>(connectionString, sql, isStoredProcedure,
                withStrictSyntax, parameters, customTypes, converters);
            return connectionString.GetSqlHelper().ExecuteSelectMany(requestParams);
        }

        #endregion

        #region ExecuteSelectManyWithPage

        public static IEnumerableWithPage<TEntity> ExecuteSelectManyWithPage<TEntity>(this IConnectionString connectionString, string sql, bool isStoredProcedure,
            bool withStrictSyntax = false, IEnumerable<KeyValuePair<string, object>> parameters = null, IEnumerable<CustomType> customTypes = null,
            params Action<IDataRecordSpecified, IList<TEntity>>[] converters)
        {
            var requestParams = new RequestParamsSelect<TEntity>(connectionString, sql, isStoredProcedure,
                withStrictSyntax, parameters, customTypes, converters);
            return connectionString.GetSqlHelper().ExecuteSelectManyWithPage(requestParams);
        }

        #endregion
    }
}