using Aurora.Api.Manager;
using Aurora.Api;
using Aurora.View;
using Aurora;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media.Media3D;
using WeldingCommon.Models;
using System.Reactive.Linq;

namespace WeldingCommon.Views
{
    public class UCModelEditorViewModel : NotifyPropertyChangedBase, IModelViewModel
    {
        public readonly Logger Log = new Logger("UCModelEditorViewModel");

        public IAuroraEnvironment _AuroraEnv;
        public readonly IRecipeManager _RecipeManager;
        public readonly IModelManager _ModelManager;

        private string _EditingSubMenu = "EquipmentSpecific";
        public bool IsEditingEquipmentSpecific {
            get => _EditingSubMenu == "EquipmentSpecific";
            set {
                if (value) {
                    SetProperty(ref _EditingSubMenu, "EquipmentSpecific");
                }
                NotifyPropertyChanged("IsEditingTeachingRun");  // 다른 variable 에 notify 해 줌.
            }
        }
        public bool IsEditingTeachingRun {
            get => _EditingSubMenu == "TeachingRun";
            set {
                if (value) {
                    SetProperty(ref _EditingSubMenu, "TeachingRun");
                }
                NotifyPropertyChanged("IsEditingEquipmentSpecific");
            }
        }

        private EquipmentSpecificModel _EditingEquipmentSpecificModel;
        public EquipmentSpecificModel EditingEquipmentSpecificModel { get => _EditingEquipmentSpecificModel; set => SetProperty(ref _EditingEquipmentSpecificModel, value); }

        private string _EditingEquipmentSpecificModelName;
        public string EditingEquipmentSpecificModelName { get => _EditingEquipmentSpecificModelName; set => SetProperty(ref _EditingEquipmentSpecificModelName, value); }

        public UCModelEditorViewModel(IAuroraEnvironment aurora)
        {
            _AuroraEnv = aurora;
            _RecipeManager = _AuroraEnv.RecipeManager;
            _ModelManager = _AuroraEnv.ModelManager;

            OnModelChanged();

            Observable.Merge(
                _AuroraEnv.EventObservable.AsObservable(AuroraSysEvent.SYS_MODEL_ENTRY_CHAGNED),
                _AuroraEnv.EventObservable.AsObservable(AuroraSysEvent.SYS_MODEL_ITEM_CHANGED)
            ).ObserveOnDispatcher()
            .Subscribe(x => OnModelChanged(EditingEquipmentSpecificModelName));
        }

        public void OnChanged(string modelName)
        {
            OnModelChanged(modelName);
        }

        public void Reloaded(string modelName)
        {
            //throw new NotImplementedException();
        }

        public void OnModelChanged(string modelName = null)
        {
            if (modelName == null) {
                modelName = _RecipeManager.ActivatedModelName();

                if (modelName == null) {
                    // 아직 ModelManager(Model) 준비되지 않은 상태. 일단 skip
                    return;
                }
            }

            if (modelName != EditingEquipmentSpecificModelName) {
                Log.D($"OnModelChanged : {EditingEquipmentSpecificModelName} -> {modelName}");
            }
            EditingEquipmentSpecificModelName = modelName;

            var model = _ModelManager?.ModelItem(EditingEquipmentSpecificModelName, CommonModelIds.EquipmentSpecificModel) as EquipmentSpecificModel;
            if (model != null) {
                EditingEquipmentSpecificModel = model;
            }
        }

        public bool CanRename(string oldName, string newName, out string errMsg)
        {
            errMsg = "";
            return true;
        }

        public bool PreSaved(string modelName)
        {
            //throw new NotImplementedException();
            return true;
        }

        public void OnSaved(string modelName)
        {
            //throw new NotImplementedException();
        }
    }
}