using Autodesk.Revit.DB;

namespace Szmedi.Toolkit.RvExtensions
{
    public static class ParameterExtensions
    {
        /// <summary>
        ///     获取参数值
        /// </summary>
        /// <param name="parameter"></param>
        /// <returns></returns>
        public static object GetValue(this Parameter parameter)
        {
            object result = null;
            switch (parameter.StorageType)
            {
                case StorageType.None:
                    break;

                case StorageType.Integer:
                    result = parameter.AsInteger();
                    break;

                case StorageType.Double:
                    result = parameter.AsDouble();
                    break;

                case StorageType.String:
                    //Revit数据库存储的值
                    var str = parameter.AsString();
                    if (string.IsNullOrEmpty(str))
                    {
                        //用户可见的前端显示，如根据单位设置而显示的值
                        result = parameter.AsValueString();
                    }
                    else
                    {
                        result = str;
                    }
                    break;

                case StorageType.ElementId:
                    result = parameter.AsElementId();
                    break;
            }

            return result;
        }
        public static bool SetValue(this Parameter parameter, object value)
        {
            var result = false;
            if (parameter == null || value == null)
            {
                //throw new ArgumentException(nameof(parameter));
                return false;
            }
            if (!parameter.IsReadOnly)
            {
                switch (parameter.StorageType)
                {
                    case StorageType.Integer:
                        if (value is int i)
                        {
                            result = parameter.Set(i);
                        }

                        break;
                    case StorageType.Double:
                        if (value is double d)
                        {
                            result = parameter.Set(d);
                        }

                        break;

                    case StorageType.String:
                        if (value is string str)
                        {
                            result = parameter.Set(str);
                        }

                        break;

                    case StorageType.ElementId:
                        if (value is ElementId id)
                        {
                            result = parameter.Set(id);
                        }

                        break;
                }
            }

            return result;
        }
    }
}