using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using Sai.RvWrapper.Shared;

namespace SZBIM.StandardTools.ParameterManager
{
    /// <summary>
    ///     项目参数（共享参数），项目信息,仅处理轨交的项目信息参数
    /// </summary>
    public class AddProjectInfoParamsEventHandler : IExternalEventHandler
    {
        private string transName;
        public bool IsSharedProjectParam { get; set; }
        public bool IsSharedFamilyParam { get; set; }
        public bool IsFamilyParam { get; set; }
        public bool IsOnlyProjectCategory { get; set; }
        public List<ParamModel> ParameterList { get; set; }
        public List<SharedParamModel> SharedParameters { get; set; }

        public void Execute(UIApplication uiapp)
        {
            UIDocument uidoc = uiapp.ActiveUIDocument;
            Autodesk.Revit.ApplicationServices.Application app = uiapp.Application;
            Document doc = uidoc.Document;
            DefinitionFile tempFile;
            StringBuilder sb = new StringBuilder();
            if (!doc.IsModified)
            {
                return;
            }

            if (doc.IsReadOnly)
            {
                TaskDialog.Show("提示", "文档为只读；若正在执行命令，请先退出命令!");
                return;
            }

            if (doc.IsFamilyDocument)
            {
                TaskDialog.Show("提示", "请在项目文档中使用此命令!");
                return;
            }


            transName = "添加项目信息";
            SharedParamsUtil util = new SharedParamsUtil();
            var originSharedParametersFile = uiapp.Application.SharedParametersFilename.Clone();
            tempFile = util.CreateTempSharedParameterFile(app, "TempSharedParameters");
            doc.Invoke(ts =>
            {
                var paramDatas = ParameterList.Where(data => data.IsChecked == true);
                var g = tempFile.Groups.Create("tempGroup");
                foreach (ParamModel paramData in paramDatas)
                {
                    bool isExist = util.IsExistSharedParam(doc, paramData.FullProperty, out _, out _);
                    if (!isExist)
                    {
                        try
                        {
                            foreach (var sharedParameter in SharedParameters)
                            {
                                if (sharedParameter.FullParamName == paramData.FullProperty)
                                {
                                    var categories = uiapp.Application.Create.NewCategorySet();
                                    categories.Insert(Category.GetCategory(doc,
                                        BuiltInCategory.OST_ProjectInformation));
                                    var newInstanceBinding =
                                        uiapp.Application.Create.NewInstanceBinding(categories);

                                    var options =
                                        new ExternalDefinitionCreationOptions(sharedParameter.FullParamName,
                                            ParameterType.MultilineText)
                                        {
                                            GUID = new Guid(sharedParameter.Guid)
                                        };
                                    var definition = g.Definitions.get_Item(sharedParameter.FullParamName);
                                    if (definition == null)
                                    {
                                        definition = g.Definitions.Create(options);
                                    }

                                    doc.ParameterBindings.Insert(definition, newInstanceBinding,
                                        BuiltInParameterGroup.PG_IDENTITY_DATA);
                                    break;
                                }
                            }
                        }
                        catch (Exception)
                        {
                            File.Delete(tempFile.Filename);
                            uiapp.Application.SharedParametersFilename = originSharedParametersFile.ToString();
                            return;
                        }
                    }
                }
            }, transName);
            File.Delete(tempFile.Filename);
            uiapp.Application.SharedParametersFilename = originSharedParametersFile.ToString();
            if (string.IsNullOrEmpty(sb.ToString()))
            {
                TaskDialog.Show("提示", "添加完成！");
            }
            else
            {
                TaskDialog.Show("警告", sb.ToString());
            }
        }

        public string GetName()
        {
            return transName;
        }
    }
}