using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows.Controls;
using System.Windows.Data;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Sai.Database.Shared;
using Sai.RvKits.Operation;
using SZBIM.StandardTools;

namespace Sai.Common.Shared.WBSCoder
{
    /// <summary>
    ///     主窗口viewmodel
    /// </summary>
    public partial class CheckCodeViewModel : ObservableObject
    {
        public CheckCodeViewModel(UIDocument uidoc, SqliteUtil sqliteUtil)
        {
            SqliteUtil = sqliteUtil;
            Uidoc = uidoc;
            Index = 0;
            Init(archiDatabase);
        }

        public const int WM_CLOSE = 0x10;
        private readonly string archiDatabase = $"{RelativePaths.DirAssembly}\\Database\\ArchiWBSCode.db";
        private readonly string metroDatabase = $"{RelativePaths.DirAssembly}\\Database\\MetroWBSCode.db";
        public readonly SqliteUtil SqliteUtil;

        [ObservableProperty] private System.Windows.Media.ImageSource icon;

        [ObservableProperty] private string projectPath;

        public IList<Element> AllElements => GetElementInstances();

        public int? Index { get; set; }

        public ObservableCollection<TaskItem> LastTaskItems { get; set; } = new();

        public ObservableCollection<WBSData> EngineerCategories { get; set; } = new();

        public UIDocument Uidoc { get; set; }

        /// <summary>
        ///     获取项目中所有实例
        /// </summary>
        /// <returns></returns>
        public IList<Element> GetElementInstances()
        {
            if (Uidoc == null)
            {
                return null;
            }

            ElementClassFilter hostObjFilter = new ElementClassFilter(typeof(HostObject));
            ElementClassFilter instanceFilter = new ElementClassFilter(typeof(FamilyInstance));
            LogicalOrFilter logicalOrFilter = new LogicalOrFilter(hostObjFilter, instanceFilter);

            var elems = new FilteredElementCollector(Uidoc.Document).WherePasses(logicalOrFilter).ToElements();
            return elems;
        }

        [RelayCommand]
        private void Closed()
        {
            SqliteUtil.CloseConnection();
            var win = WinIntPtr.FindWindow(null, "打开Project文件");
            WinIntPtr.SendMessage(win, WM_CLOSE, 0, 0);
        }

        [RelayCommand]
        private void GetDataBase(object obj)
        {
            System.Windows.Controls.ComboBox cbb = obj as System.Windows.Controls.ComboBox;
            Index = cbb?.SelectedIndex;
            switch (Index)
            {
                case 0:
                    Init(archiDatabase);
                    break;
                case 1:
                    Init(metroDatabase);
                    break;
            }
        }

        private void Init(string database)
        {
            //SqliteUtil.CloseConnection();
            try
            {
                SqliteUtil.CreateDb(database);
                var categories = (from array in SqliteUtil.QueryTable("CATEGORY")
                    select new WBSData { Name = array[4], WbsCode = array[3], HierarchicalCode = array[2] }).ToList();
                EngineerCategories.Clear();
                foreach (var wbsData in categories)
                {
                    EngineerCategories.Add(wbsData);
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }
        }

        [RelayCommand]
        private void OpenProjectFileDialog()
        {
            const string filter = "项目(*.mpp)|*.mpp";
            FileOpenDialog openFileDialog = new FileOpenDialog(filter)
            {
                DefaultFilterEntry = filter,
                ShowPreview = true,
                Title = "打开Project文件"
            };
            if (openFileDialog.Show() == ItemSelectionDialogResult.Confirmed)
            {
                ModelPath mp = openFileDialog.GetSelectedModelPath();
                ProjectPath = ModelPathUtils.ConvertModelPathToUserVisiblePath(mp);
                ProjectUtil.GetTasks(ProjectPath, LastTaskItems);
            }
        }

        [RelayCommand]
        private static void SearchData(object obj)
        {
            if (!(obj is object[] multiObj)) return;
            DataGrid dataGrid = multiObj[0] as DataGrid;
            System.Windows.Controls.TextBox textBox = multiObj[1] as System.Windows.Controls.TextBox;
            var cvs = CollectionViewSource.GetDefaultView(dataGrid.ItemsSource);
            if (cvs != null && cvs.CanFilter)
            {
                cvs.Filter = p =>
                {
                    TaskItem task = p as TaskItem;
                    return task.Name.Contains(textBox.Text);
                };
            }
        }
    }
}