Tango - Twine softwares

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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.BL.Entities;
using Tango.MachineStudio.Common.Notifications;
using Tango.SharedUI;
using Tango.BL;
using Tango.SharedUI.Components;
using System.Runtime.CompilerServices;
using Tango.MachineStudio.Common;
using Tango.Core.ExtensionMethods;
using Tango.MachineStudio.HardwareDesigner.Views;
using Microsoft.Win32;
using System.IO;
using Tango.BL.ActionLogs;
using Tango.MachineStudio.Common.Authentication;
using Tango.BL.DTO;
using Tango.BL.Enumerations;

namespace Tango.MachineStudio.HardwareDesigner.ViewModels
{
    public class MainViewVM : StudioViewModel
    {
        private INotificationProvider _notification;
        private bool _isNew;
        private ObservablesContext _db;
        private IActionLogManager _actionLogManager;
        private IAuthenticationProvider _authentication;
        private HardwareVersionDTO _hwBeforeSave;

        private HardwareVersion _selectedVersion;
        public HardwareVersion SelectedVersion
        {
            get { return _selectedVersion; }
            set { _selectedVersion = value; RaisePropertyChangedAuto(); OnSelectedVersionChanged(); }
        }

        private HardwareVersion _currentVersion;
        public HardwareVersion CurrentVersion
        {
            get { return _currentVersion; }
            set { _currentVersion = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
        }

        private IObservableEntity _selectedHardwareObject;
        public IObservableEntity SelectedHardwareObject
        {
            get { return _selectedHardwareObject; }
            set
            {
                _selectedHardwareObject = null;
                RaisePropertyChangedAuto();
                _selectedHardwareObject = value;
                RaisePropertyChangedAuto();
                RaisePropertyChanged(nameof(SelectedHardwareObjectTypeName));
            }
        }

        public String SelectedHardwareObjectTypeName
        {
            get
            {
                String name = String.Empty;

                if (SelectedHardwareObject is HardwareMotor)
                {
                    name = (SelectedHardwareObject as HardwareMotor).HardwareMotorType.Description;
                }
                else if (SelectedHardwareObject is HardwareDancer)
                {
                    name = (SelectedHardwareObject as HardwareDancer).HardwareDancerType.Description;
                }
                else if (SelectedHardwareObject is HardwareBlower)
                {
                    name = (SelectedHardwareObject as HardwareBlower).HardwareBlowerType.Description;
                }
                else if (SelectedHardwareObject is HardwareBreakSensor)
                {
                    name = (SelectedHardwareObject as HardwareBreakSensor).HardwareBreakSensorType.Description;
                }
                else if (SelectedHardwareObject is HardwarePidControl)
                {
                    name = (SelectedHardwareObject as HardwarePidControl).HardwarePidControlType.Description;
                }
                else if (SelectedHardwareObject is HardwareSpeedSensor)
                {
                    name = (SelectedHardwareObject as HardwareSpeedSensor).HardwareSpeedSensorType.Description;
                }
                else if (SelectedHardwareObject is HardwareWinder)
                {
                    name = (SelectedHardwareObject as HardwareWinder).HardwareWinderType.Description;
                }

                return name;
            }
        }

        private ObservableCollection<HardwareVersion> _hardwareVersions;
        public ObservableCollection<HardwareVersion> HardwareVersions
        {
            get { return _hardwareVersions; }
            set { _hardwareVersions = value; RaisePropertyChangedAuto(); }
        }

        public RelayCommand SaveCommand { get; set; }

        public RelayCommand DeleteCommand { get; set; }

        public RelayCommand NewCommand { get; set; }

        public RelayCommand CloneCommand { get; set; }

        public RelayCommand CopyParametersCommand { get; set; }

        public RelayCommand OpenComparisonWizardCommand { get; set; }

        public RelayCommand ExportHardwareVersionCommand { get; set; }

        public RelayCommand ImportHardwareVersionCommand { get; set; }

        public MainViewVM(INotificationProvider notification, IActionLogManager actionLogManager, IAuthenticationProvider authentication)
        {
            _notification = notification;
            _actionLogManager = actionLogManager;
            _authentication = authentication;

            CurrentVersion = new HardwareVersion();

            SaveCommand = new RelayCommand(Save, () => SelectedVersion != null && IsFree);
            NewCommand = new RelayCommand(New, () => IsFree);
            DeleteCommand = new RelayCommand(Delete, () => !_isNew && SelectedVersion != null && IsFree);

            CurrentVersion = new HardwareVersion();

            CopyParametersCommand = new RelayCommand(CopyParameters, (x) => SelectedVersion != null && IsFree);
            CloneCommand = new RelayCommand(CloneCurrentVersion, () => SelectedVersion != null && IsFree);

            OpenComparisonWizardCommand = new RelayCommand(OpenComparisonWizard, () => IsFree);
            ExportHardwareVersionCommand = new RelayCommand(ExportHardwareVersion, () => IsFree && SelectedVersion != null && CurrentVersion != null);
            ImportHardwareVersionCommand = new RelayCommand(ImportHardwareVersion, () => IsFree);
        }

        private async void ExportHardwareVersion()
        {
            SaveFileDialog dlg = new SaveFileDialog();
            dlg.Title = "Export hardware version";
            dlg.DefaultExt = ".hv";
            dlg.Filter = "Hardware Version Files|*.hv";

            if (dlg.ShowDialog().Value)
            {
                try
                {
                    var json = await CurrentVersion.ToHardwareVersionFile();
                    File.WriteAllText(dlg.FileName, json);
                }
                catch (Exception ex)
                {
                    LogManager.Log(ex, "Error exporting hardware version.");
                    _notification.ShowError($"An error occurred while trying to export the selected hardware version.\n{ex.FlattenMessage()}");
                }
            }
        }

        private async void ImportHardwareVersion()
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlg.Title = "Import hardware version";
            dlg.DefaultExt = ".hv";
            dlg.Filter = "Hardware Version Files|*.hv";

            if (dlg.ShowDialog().Value)
            {
                try
                {
                    var hv = await HardwareVersion.FromHardwareVersionFile(File.ReadAllText(dlg.FileName));

                    String name = _notification.ShowTextInput("Enter hardware version name", "Name", hv.Name);
                    if (!String.IsNullOrWhiteSpace(name))
                    {
                        using (_notification.PushTaskItem("Importing hardware version..."))
                        {
                            try
                            {
                                IsFree = false;

                                hv.Name = name;
                                hv.Version = HardwareVersions.Max(x => x.Version) + 1;

                                _db.HardwareVersions.Add(hv);
                                await _db.SaveChangesAsync();

                                _actionLogManager.InsertLog(BL.Enumerations.ActionLogType.HardwareVersionImported, _authentication.CurrentUser, CurrentVersion.Name, CurrentVersion, "New hardware version imported using Machine Studio.");

                                RefreshVersions();

                                InvokeUI(() =>
                                {
                                    SelectedVersion = HardwareVersions.SingleOrDefault(x => x.Guid == hv.Guid);
                                });
                            }
                            catch (Exception ex)
                            {
                                LogManager.Log(ex, "Error importing hardware version.");
                                _notification.ShowError($"An error occurred while trying to import the selected hardware version.\n{ex.FlattenMessage()}");
                            }
                            finally
                            {
                                IsFree = true;
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                    LogManager.Log(ex, "Error importing hardware version.");
                    _notification.ShowError($"An error occurred while trying to load the selected hardware version file.\n{ex.FlattenMessage()}");
                }
            }
        }

        public override void OnApplicationReady()
        {
            Task.Factory.StartNew(() =>
            {
                RefreshVersions();
                CreateDefaultView();
            });
        }

        private void CopyParameters(object obj)
        {
            obj.MapPropertiesTo(SelectedHardwareObject, MappingFlags.ValueTypesOnly,
                (prop) =>
                !prop.PropertyType.IsEnum
                &&
                prop.Name.ToLower() != "guid"
                &&
                prop.Name.ToLower() != "id");
        }

        private void CreateDefaultView()
        {
            if (_db != null) _db.Dispose();

            _db = ObservablesContext.CreateDefault();

            CurrentVersion.HardwareMotors = _db.HardwareMotorTypes.ToList().Select(x => new HardwareMotor() { HardwareMotorType = x }).OrderByAlphaNumeric(x => x.HardwareMotorType.Description).ToSynchronizedObservableCollection();
            CurrentVersion.HardwareDancers = _db.HardwareDancerTypes.ToList().Select(x => new HardwareDancer() { HardwareDancerType = x }).OrderByAlphaNumeric(x => x.HardwareDancerType.Description).ToSynchronizedObservableCollection();
            CurrentVersion.HardwarePidControls = _db.HardwarePidControlTypes.ToList().Select(x => new HardwarePidControl() { HardwarePidControlType = x }).OrderByAlphaNumeric(x => x.HardwarePidControlType.Description).ToSynchronizedObservableCollection();
            CurrentVersion.HardwareWinders = _db.HardwareWinderTypes.ToList().Select(x => new HardwareWinder() { HardwareWinderType = x }).OrderByAlphaNumeric(x => x.HardwareWinderType.Description).ToSynchronizedObservableCollection();
            CurrentVersion.HardwareSpeedSensors = _db.HardwareSpeedSensorTypes.ToList().Select(x => new HardwareSpeedSensor() { HardwareSpeedSensorType = x }).OrderByAlphaNumeric(x => x.HardwareSpeedSensorType.Description).ToSynchronizedObservableCollection();
            CurrentVersion.HardwareBlowers = _db.HardwareBlowerTypes.ToList().Select(x => new HardwareBlower() { HardwareBlowerType = x }).OrderByAlphaNumeric(x => x.HardwareBlowerType.Description).ToSynchronizedObservableCollection();
            CurrentVersion.HardwareBreakSensors = _db.HardwareBreakSensorTypes.ToList().Select(x => new HardwareBreakSensor() { HardwareBreakSensorType = x }).OrderByAlphaNumeric(x => x.HardwareBreakSensorType.Description).ToSynchronizedObservableCollection();
        }

        private void RefreshVersions()
        {
            using (var db = ObservablesContext.CreateDefault())
            {
                _hardwareVersions = db.HardwareVersions.OrderByDescending(x => x.Version).ToObservableCollection();
                InvokeUI(() =>
                {
                    RaisePropertyChanged(nameof(HardwareVersions));
                });
            }
        }

        private void CreateVersionView(HardwareVersion selectedVersion)
        {
            if (_db != null) _db.Dispose();

            _db = ObservablesContext.CreateDefault();

            CurrentVersion = _db.Adapter.GetHardwareVersion(x => x.Guid == selectedVersion.Guid);


            InvokeUINow(() =>
            {
                ObservablesStaticCollections.Instance.HardwareMotorTypes.Where(x => !CurrentVersion.HardwareMotors.ToList().Exists(y => y.HardwareMotorType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwareMotors.Add(new HardwareMotor()
                    {
                        HardwareMotorType = _db.HardwareMotorTypes.SingleOrDefault(y => y.Code == x.Code),
                    });
                });

                CurrentVersion.HardwareMotors = CurrentVersion.HardwareMotors.OrderBy(x => x.HardwareMotorType.Code).ToSynchronizedObservableCollection();

                ObservablesStaticCollections.Instance.HardwareDancerTypes.Where(x => !CurrentVersion.HardwareDancers.ToList().Exists(y => y.HardwareDancerType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwareDancers.Add(new HardwareDancer()
                    {
                        HardwareDancerType = _db.HardwareDancerTypes.SingleOrDefault(y => y.Code == x.Code)
                    });
                });

                CurrentVersion.HardwareDancers = CurrentVersion.HardwareDancers.OrderBy(x => x.HardwareDancerType.Code).ToSynchronizedObservableCollection();

                ObservablesStaticCollections.Instance.HardwarePidControlTypes.Where(x => !CurrentVersion.HardwarePidControls.ToList().Exists(y => y.HardwarePidControlType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwarePidControls.Add(new HardwarePidControl()
                    {
                        HardwarePidControlType = _db.HardwarePidControlTypes.SingleOrDefault(y => y.Code == x.Code)
                    });
                });

                CurrentVersion.HardwarePidControls = CurrentVersion.HardwarePidControls.OrderBy(x => x.HardwarePidControlType.Code).ToSynchronizedObservableCollection();

                ObservablesStaticCollections.Instance.HardwareWinderTypes.Where(x => !CurrentVersion.HardwareWinders.ToList().Exists(y => y.HardwareWinderType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwareWinders.Add(new HardwareWinder()
                    {
                        HardwareWinderType = _db.HardwareWinderTypes.SingleOrDefault(y => y.Code == x.Code)
                    });
                });

                CurrentVersion.HardwareWinders = CurrentVersion.HardwareWinders.OrderBy(x => x.HardwareWinderType.Code).ToSynchronizedObservableCollection();

                ObservablesStaticCollections.Instance.HardwareSpeedSensorTypes.Where(x => !CurrentVersion.HardwareSpeedSensors.ToList().Exists(y => y.HardwareSpeedSensorType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwareSpeedSensors.Add(new HardwareSpeedSensor()
                    {
                        HardwareSpeedSensorType = _db.HardwareSpeedSensorTypes.SingleOrDefault(y => y.Code == x.Code)
                    });
                });

                CurrentVersion.HardwareSpeedSensors = CurrentVersion.HardwareSpeedSensors.OrderBy(x => x.HardwareSpeedSensorType.Code).ToSynchronizedObservableCollection();

                ObservablesStaticCollections.Instance.HardwareBlowerTypes.Where(x => !CurrentVersion.HardwareBlowers.ToList().Exists(y => y.HardwareBlowerType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwareBlowers.Add(new HardwareBlower()
                    {
                        HardwareBlowerType = _db.HardwareBlowerTypes.SingleOrDefault(y => y.Code == x.Code)
                    });
                });

                CurrentVersion.HardwareBlowers = CurrentVersion.HardwareBlowers.OrderBy(x => x.HardwareBlowerType.Code).ToSynchronizedObservableCollection();

                ObservablesStaticCollections.Instance.HardwareBreakSensorTypes.Where(x => !CurrentVersion.HardwareBreakSensors.ToList().Exists(y => y.HardwareBreakSensorType.Code == x.Code)).ToList().ForEach(x =>
                {
                    CurrentVersion.HardwareBreakSensors.Add(new HardwareBreakSensor()
                    {
                        HardwareBreakSensorType = _db.HardwareBreakSensorTypes.SingleOrDefault(y => y.Code == x.Code)
                    });
                });

                CurrentVersion.HardwareBreakSensors = CurrentVersion.HardwareBreakSensors.OrderBy(x => x.HardwareBreakSensorType.Code).ToSynchronizedObservableCollection();

                _hwBeforeSave = HardwareVersionDTO.FromObservable(CurrentVersion);
            });
        }

        private async void OnSelectedVersionChanged()
        {
            if (SelectedVersion != null)
            {
                using (_notification.PushTaskItem("Loading hardware version..."))
                {
                    try
                    {
                        IsFree = false;

                        await Task.Factory.StartNew(() =>
                        {
                            _isNew = false;
                            var selectedVersion = SelectedVersion;
                            RefreshVersions();
                            var version = _hardwareVersions.SingleOrDefault(X => X.Guid == selectedVersion.Guid);
                            CreateVersionView(SelectedVersion);

                            InvokeUI(() =>
                            {
                                _selectedVersion = version;
                                RaisePropertyChanged(nameof(SelectedVersion));
                            });
                        });
                    }
                    catch (Exception ex)
                    {
                        LogManager.Log(ex, "Error loading hardware version.");
                        _notification.ShowError($"Error loading the selected hardware version.\n{ex.FlattenMessage()}");
                    }
                    finally
                    {
                        IsFree = true;
                    }
                }
            }

            InvalidateRelayCommands();
        }

        private async void New()
        {
            String name = _notification.ShowTextInput("Enter hardware version name", "Name");

            if (!String.IsNullOrWhiteSpace(name))
            {
                using (_notification.PushTaskItem("Creating new machine version..."))
                {
                    IsFree = false;

                    await Task.Factory.StartNew(() =>
                    {
                        SelectedVersion = null;
                        CurrentVersion = new HardwareVersion();
                        CurrentVersion.Version = HardwareVersions.Max(x => x.Version) + 1;
                        CurrentVersion.Name = name;
                        CreateDefaultView();

                        _db.HardwareVersions.Add(CurrentVersion);
                        _db.SaveChanges();

                        _actionLogManager.InsertLog(BL.Enumerations.ActionLogType.HardwareVersionCreated, _authentication.CurrentUser, CurrentVersion.Name, CurrentVersion, "New hardware version created using Machine Studio.");

                        RefreshVersions();

                        InvokeUI(() =>
                        {
                            _selectedVersion = HardwareVersions.SingleOrDefault(x => x.Guid == CurrentVersion.Guid);
                            RaisePropertyChanged(nameof(SelectedVersion));
                        });

                        _isNew = true;
                        InvalidateRelayCommands();
                    });

                    IsFree = true;
                }
            }
        }

        private async void Save()
        {
            using (_notification.PushTaskItem("Saving hardware version..."))
            {
                try
                {
                    IsFree = false;

                    await Task.Factory.StartNew(() =>
                    {
                        CurrentVersion.LastUpdated = DateTime.UtcNow;
                        CurrentVersion.UserName = _authentication.CurrentUser.Email;

                        _db.SaveChanges();

                        var dtoAfter = HardwareVersionDTO.FromObservable(CurrentVersion);
                        _actionLogManager.InsertLog(BL.Enumerations.ActionLogType.HardwareVersionSaved, _authentication.CurrentUser, _hwBeforeSave.Name, _hwBeforeSave, dtoAfter, "Hardware Version saved using Machine Studio.");
                        _hwBeforeSave = dtoAfter;

                        RefreshVersions();

                        InvokeUI(() =>
                        {
                            SelectedVersion = HardwareVersions.SingleOrDefault(x => x.Guid == CurrentVersion.Guid);
                        });
                    });
                }
                catch (Exception ex)
                {
                    LogManager.Log(ex, "Could not save hardware version.");
                    _notification.ShowError($"An error occurred while trying to save this hardware version.\n{ex.Message}");
                }
                finally
                {
                    IsFree = true;
                }
            }
        }

        private async void CloneCurrentVersion()
        {
            if (CurrentVersion != null)
            {
                String name = _notification.ShowTextInput("Enter new hardware configuration name", "Name", CurrentVersion.Name + " - Copy");

                if (!String.IsNullOrWhiteSpace(name))
                {
                    using (_notification.PushTaskItem("Cloning hardware configuration..."))
                    {
                        try
                        {
                            IsFree = false;

                            await Task.Factory.StartNew(() =>
                            {
                                var cloned = CurrentVersion.Clone();
                                cloned.Name = name;
                                cloned.Version = HardwareVersions.Max(x => x.Version) + 1;
                                _db.HardwareVersions.Add(cloned);
                                _db.SaveChanges();

                                _actionLogManager.InsertLog(BL.Enumerations.ActionLogType.HardwareVersionCreated, _authentication.CurrentUser, cloned.Name, cloned, "New hardware version cloned using Machine Studio.");

                                RefreshVersions();

                                InvokeUI(() =>
                                {
                                    SelectedVersion = HardwareVersions.SingleOrDefault(x => x.Guid == cloned.Guid);
                                });
                            });
                        }
                        catch (Exception ex)
                        {
                            LogManager.Log(ex, "Could not clone hardware version.");
                            _notification.ShowError($"An error occurred while trying to clone this hardware version.\n{ex.Message}");
                        }
                        finally
                        {
                            IsFree = true;
                        }
                    }
                }
            }

        }

        private async void Delete()
        {
            if (_notification.ShowQuestion("Are you sure you want to delete this hardware version?"))
            {
                using (_notification.PushTaskItem("Deleting hardware version..."))
                {
                    try
                    {
                        IsFree = false;

                        await CurrentVersion.DeleteCascadeAsync(_db);

                        _actionLogManager.InsertLog(BL.Enumerations.ActionLogType.HardwareVersionDeleted, _authentication.CurrentUser, CurrentVersion.Name, _hwBeforeSave, "Hardware version deleted using Machine Studio.", true);

                        await Task.Factory.StartNew(() =>
                        {
                            SelectedVersion = null;
                            RefreshVersions();

                            CurrentVersion = new HardwareVersion();
                            CreateDefaultView();
                            InvalidateRelayCommands();
                        });
                    }
                    catch (Exception ex)
                    {
                        LogManager.Log(ex, "Could not delete hardware version.");
                        _notification.ShowError($"An error occurred while trying to delete this hardware version.\n{ex.Message}");
                    }
                    finally
                    {
                        IsFree = true;
                    }
                }
            }
        }

        private void OpenComparisonWizard()
        {
            ComparisonWizardViewVM vm = new ComparisonWizardViewVM(HardwareVersions, SelectedVersion, _notification);
            _notification.ShowModalDialog<ComparisonWizardViewVM, ComparisonWizardView>(vm, (x) => { }, () => { });
        }

        protected override void RaisePropertyChangedAuto([CallerMemberName] string caller = null)
        {
            base.RaisePropertyChangedAuto(caller);
            InvalidateRelayCommands();
        }
    }
}

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