using System.Collections.Generic;
using System.Linq;

using Bentley.DgnPlatformNET.DgnEC;
using Bentley.DgnPlatformNET.Elements;
using Bentley.ECObjects.Instance;
using Bentley.ECObjects.Schema;



namespace MSDevTool.Helpers
{
    internal class SnoopHelpers
    {
        /// <summary>
        /// 获取元素的所有属性
        /// </summary>
        /// <param name="element"></param>
        public static List<ECPropValue> GetECProperties(Element element)
        {
            if (null == element)
            {
                return null;
            }
            var props = new List<ECPropValue>();
            DgnECManager ecManager = DgnECManager.Manager;
            int count = 0;
            DgnECInstanceCollection instCol = ecManager.GetElementProperties(element, ECQueryProcessFlags.SearchAllClasses);
            foreach (IDgnECInstance inst in instCol)
            {
                count++;
                //sb.AppendLine($"----ECInstance{count}[{inst.ClassDefinition.Name}]");
                var propertyEnum = inst.ClassDefinition.GetEnumerator();
                while (propertyEnum.MoveNext())
                {
                    var cur = propertyEnum.Current;
                    IECPropertyValue propertyValue = inst.GetPropertyValue(cur.Name);
                    if (propertyValue.IsArray)
                    {
                        IECArrayValue arrayVal = propertyValue as IECArrayValue;
                        if (arrayVal.Count >= 1)
                            propertyValue = arrayVal[0];
                    }
                    var propName = cur.Name;
                    ECNameValidation.DecodeFromValidName(ref propName);

                    if (propertyValue.TryGetNativeValue(out var obj))
                    {
                        ECPropValue property = new()
                        {
                            ECInstanceName = $"EC类别定义-{inst.ClassDefinition.DisplayLabel}",
                            ECPropertyValue = propertyValue,
                            LabelName = propertyValue.Property.DisplayLabel,
                            PropName = propName,
                            PropValue = obj,
                            DataType = obj.GetType()
                        };

                        props.Add(property);
                    }
                }
            }
            //MessageBox.Show(sb.ToString());
            return props.ToList();
        }
        public static List<ClassPropValue> GetClassPropDictionary(object elem)
        {
            var type = elem.GetType();
            var props = type.GetProperties();

            var propValues = new List<ClassPropValue>();
            foreach (var prop in props)
            {
                //如果该属性是索引 跳过本次循环。避免提示异常信息：参数计数不匹配
                if (prop.GetIndexParameters().Length > 0)
                {
                    continue;
                }
                ClassPropValue classPropValue = new ClassPropValue()
                {
                    ClassName = $"Class类型名-{type.FullName}",
                    //{prop.DeclaringType}区分属性所属的声明类型
                    PropName = $"{prop.Name}",
                    PropValue = prop.GetValue(elem),
                    DataType = prop.PropertyType
                };
                propValues.Add(classPropValue);
            }
            return propValues;
        }
    }
}