using System;

namespace SqlSugar
{
    public class MySqlInsertBuilder : InsertBuilder
    {
        public override string SqlTemplate
        {
            get
            {
                if (IsReturnIdentity)
                {
                    return @"INSERT INTO {0} 
           ({1})
     VALUES
           ({2}) ;SELECT LAST_INSERT_ID();";
                }
                else
                {
                    return @"INSERT INTO {0} 
           ({1})
     VALUES
           ({2}) ;";

                }
            }
        }
        public override object FormatValue(object value)
        {
            var n = "N";
            if (this.Context.CurrentConnectionConfig.MoreSettings != null && this.Context.CurrentConnectionConfig.MoreSettings.MySqlDisableNarvchar)
            {
                n = "";
            }
            if (value == null)
            {
                return "NULL";
            }
            else
            {
                var type = UtilMethods.GetUnderType(value.GetType());
                if (type == UtilConstants.DateType)
                {
                    var date = value.ObjToDate();
                    if (date < Convert.ToDateTime("1900-1-1"))
                    {
                        date = Convert.ToDateTime("1900-1-1");
                    }
                    return "'" + date.ToString("yyyy-MM-dd HH:mm:ss.fff") + "'";
                }
                else if (type == UtilConstants.ByteArrayType)
                {
                    string bytesString = "0x" + BitConverter.ToString((byte[])value).Replace("-", "");
                    return bytesString;
                }
                else if (type.IsEnum())
                {
                    return Convert.ToInt64(value);
                }
                else if (type == UtilConstants.BoolType)
                {
                    return value.ObjToBool() ? "1" : "0";
                }
                else if (type == UtilConstants.StringType || type == UtilConstants.ObjType)
                {
                    return n+"'" + GetString(value).ToSqlFilter() + "'";
                }
                else
                {
                    return n+"'" + GetString(value) + "'";
                }
            }
        }
        private string GetString(object value)
        {
            var result = value.ToString();
            if (result.HasValue() && result.Contains("\\"))
            {
                result = result.Replace("\\", "\\\\");
            }
            return result;
        }
    }
}