using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Mechanical;
using Autodesk.Revit.DB.Plumbing;

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;

using Nice3point.Revit.Toolkit.External.Handlers;

namespace Sai.RvKits.RvMEP
{
    public partial class AddInsulationViewModel : ObservableObject
    {
        private readonly ActionEventHandler addInsulationHandler = new();

        [ObservableProperty]
        [NotifyCanExecuteChangedFor(nameof(AddInsulationCommand))]
        private bool addToDuct;
        [ObservableProperty]
        [NotifyCanExecuteChangedFor(nameof(AddInsulationCommand))]
        private bool addToPipe;
        /// <summary>
        /// 定义的风管保温层
        /// </summary>
        [ObservableProperty]
        private InsulationItem ductInsulationItem;
        /// <summary>
        /// 定义的管道保温层
        /// </summary>
        [ObservableProperty]
        private List<InsulationItem> pipeInsulationItems;
        /// <summary>
        /// 选中的风管系统类型
        /// </summary>
        [ObservableProperty]
        [NotifyCanExecuteChangedFor(nameof(AddInsulationCommand))]

        private MechanicalSystemType selectedDuctSystem;
        /// <summary>
        /// 选中的管道系统类型
        /// </summary>
        [ObservableProperty]
        [NotifyCanExecuteChangedFor(nameof(AddInsulationCommand))]
        private PipingSystemType selectedPipingSystemType;

        public AddInsulationViewModel(Document doc)
        {
            PipingSystemTypes = doc.OfClass<PipingSystemType>().Cast<PipingSystemType>().ToList();
            DuctSystemTypes = doc.OfClass<MechanicalSystemType>().Cast<MechanicalSystemType>().ToList();
            DuctInsulationTypes = doc.OfClass<DuctInsulationType>().Cast<DuctInsulationType>().ToList();
            PipeInsulationTypes = doc.OfClass<PipeInsulationType>().Cast<PipeInsulationType>().ToList();
            PipeInsulationItems = [
            new InsulationItem(){MinDiameter=15,MaxDiameter=25, Thickness=25,PipeInsulationType=PipeInsulationTypes.FirstOrDefault()},
            new InsulationItem(){MinDiameter=32,MaxDiameter=80, Thickness=30,PipeInsulationType=PipeInsulationTypes.FirstOrDefault()},
            new InsulationItem(){MinDiameter=100,MaxDiameter=1000, Thickness=35,PipeInsulationType=PipeInsulationTypes.FirstOrDefault()},
        ];
            DuctInsulationItem = new() { Thickness = 50, DuctInsulationType = DuctInsulationTypes.FirstOrDefault() };
        }

        [RelayCommand(CanExecute = nameof(CanAdd))]
        private void AddInsulation()
        {
            addInsulationHandler.Raise(
                uiapp =>
                {
                    var uidoc = uiapp.ActiveUIDocument;
                    var doc = uidoc.Document;
                    doc.Invoke(
                        ts =>
                        {
                            if (AddToDuct)
                            {
                                var systems = doc.OfClass<MechanicalSystem>().Cast<MechanicalSystem>();

                                foreach (var system in systems)
                                {
                                    var elems = system.DuctNetwork;
                                    foreach (Element elem in elems)
                                    {
                                        var id = InsulationLiningBase.GetInsulationIds(doc, elem.Id).FirstOrDefault();
                                        if (id == null)
                                        {
                                            //风管或风管管件
                                            if (elem is Duct duct ||
                                                (elem is FamilyInstance instance &&
                                                    instance.Category.Id.IntegerValue == -2008010))
                                            {
                                                Autodesk.Revit.DB.Mechanical.DuctInsulation
                                                    .Create(
                                                        doc,
                                                        elem.Id,
                                                        DuctInsulationItem.DuctInsulationType.Id,
                                                        DuctInsulationItem.Thickness / 304.8);
                                            }
                                        }
                                        else
                                        {
                                            var insulation = doc.GetElement(id) as DuctInsulation;
                                            insulation.ChangeTypeId(DuctInsulationItem.DuctInsulationType.Id);
                                            insulation.Thickness = DuctInsulationItem.Thickness / 304.8;
                                        }
                                    }
                                }
                            }
                            if (AddToPipe)
                            {
                                var systems = doc.OfClass<PipingSystem>().Cast<PipingSystem>();

                                foreach (var system in systems)
                                {
                                    var elems = system.PipingNetwork;
                                    foreach (Element elem in elems)
                                    {
                                        //水管或水管管件
                                        if (elem is Pipe pipe ||
                                            (elem is FamilyInstance instance &&
                                                instance.Category.Id.IntegerValue == -2008049))
                                        {
                                            InsulationItem pipeInsulation = default;
                                            foreach (var item in PipeInsulationItems)
                                            {
                                                //直径
                                                var str = elem.get_Parameter(BuiltInParameter.RBS_CALCULATED_SIZE)
                                                    .AsString()
                                                    .Split(' ')
                                                    .FirstOrDefault();
                                                if (double.TryParse(str, out var d))
                                                {
                                                    if (d >= item.MinDiameter && d <= item.MaxDiameter)
                                                    {
                                                        pipeInsulation = item;
                                                        break;
                                                    }
                                                }
                                            }

                                            var id = InsulationLiningBase.GetInsulationIds(doc, elem.Id).FirstOrDefault();
                                            if (id == null)
                                            {
                                                if (pipeInsulation != null)
                                                {
                                                    Autodesk.Revit.DB.Plumbing.PipeInsulation
                                                        .Create(
                                                            doc,
                                                            elem.Id,
                                                            pipeInsulation.PipeInsulationType.Id,
                                                            pipeInsulation.Thickness / 304.8);
                                                }
                                            }
                                            else
                                            {
                                                var insulation = doc.GetElement(id) as PipeInsulation;
                                                insulation.ChangeTypeId(pipeInsulation.PipeInsulationType.Id);
                                                insulation.Thickness = pipeInsulation.Thickness / 304.8;
                                            }
                                        }
                                    }
                                }
                            }
                        }, "添加保温层");
                });
        }

        //private bool CanAdd()
        //{
        //    return (AddToDuct && SelectedDuctSystem != null) || (AddToPipe && SelectedPipingSystemType != null);
        //}
        private bool CanAdd => (AddToDuct && SelectedDuctSystem != null) ||
            (AddToPipe && SelectedPipingSystemType != null);

        /// <summary>
        /// 所有风管保温层类型
        /// </summary>
        public List<DuctInsulationType> DuctInsulationTypes { get; set; }
        /// <summary>
        /// 所有风管系统类型
        /// </summary>
        public List<MechanicalSystemType> DuctSystemTypes { get; set; }

        /// <summary>
        /// 所有管道保温层类型
        /// </summary>
        public List<PipeInsulationType> PipeInsulationTypes { get; set; }

        /// <summary>
        /// 所有管道系统类型
        /// </summary>
        public List<PipingSystemType> PipingSystemTypes { get; set; }
    }
}