using Laservall.Solidworks.Common;
using SolidWorks.Interop.sldworks;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Laservall.Solidworks.Extension
{
    public static class SWDocWriter
    {
        private static readonly HashSet<string> SkipWriteProperties = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
        {
            "材质", "MATERIAL",
            "重量", "MASS"
        };

        public static void WriteDocProperties(IModelDoc2 doc, Model.PartPropModel partPropModel)
        {
            if (doc == null) return;

            Configuration activeConfig = doc.ConfigurationManager?.ActiveConfiguration;
            CustomPropertyManager configPropMgr = activeConfig?.CustomPropertyManager;

            CustomPropertyManager filePropMgr = null;
            try
            {
                filePropMgr = doc.Extension?.get_CustomPropertyManager("");
            }
            catch { }

            string[] configNames = null;
            try
            {
                configNames = configPropMgr?.GetNames() as string[];
            }
            catch { }

            partPropModel.GetType().GetProperties().ToList().ForEach(p =>
            {
                p.CustomAttributes.ToList().ForEach(attr =>
                {
                    if (attr.AttributeType == typeof(System.ComponentModel.DisplayNameAttribute))
                    {
                        var displayName = attr.ConstructorArguments[0].Value.ToString();

                        // ReadOnly属性（使用ReadOnlyTextPropertyEditor的）不写入
                        bool isReadOnly = p.CustomAttributes.Any(a =>
                            a.AttributeType == typeof(System.ComponentModel.EditorAttribute) &&
                            a.ConstructorArguments.Any(c =>
                                c.Value?.ToString()?.Contains(nameof(ReadOnlyTextPropertyEditor)) == true));
                        if (isReadOnly) return;

                        // 内置特殊属性不通过自定义属性写入
                        if (SkipWriteProperties.Contains(displayName)) return;

                        var val = p.GetValue(partPropModel);
                        string strVal = val?.ToString() ?? "";

                        SetPropertyValue(configPropMgr, filePropMgr, configNames, displayName, strVal);
                    }
                });
            });
        }

        /// <summary>
        /// 写入属性值：属性存在于配置级则写配置级，否则写文件级
        /// 与SolidWorksBomDataProvider.SaveChanges()保持一致的策略
        /// </summary>
        private static void SetPropertyValue(
            CustomPropertyManager configPropMgr,
            CustomPropertyManager filePropMgr,
            string[] configNames,
            string propertyName,
            string val)
        {
            bool writtenToConfig = false;

            if (configPropMgr != null && configNames != null && configNames.Contains(propertyName))
            {
                try
                {
                    configPropMgr.Set2(propertyName, val);
                    writtenToConfig = true;
                }
                catch (Exception ex)
                {
                    Debug.WriteLine($"SetPropertyValue config({propertyName}) failed: {ex.Message}");
                }
            }

            if (!writtenToConfig && filePropMgr != null)
            {
                try
                {
                    filePropMgr.Set2(propertyName, val);
                }
                catch (Exception ex)
                {
                    Debug.WriteLine($"SetPropertyValue file({propertyName}) failed: {ex.Message}");
                }
            }
            else if (!writtenToConfig && configPropMgr != null)
            {
                try
                {
                    configPropMgr.Set2(propertyName, val);
                }
                catch (Exception ex)
                {
                    Debug.WriteLine($"SetPropertyValue config-fallback({propertyName}) failed: {ex.Message}");
                }
            }
        }
    }
}