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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.Core.DI;
using Tango.Core.ExtensionMethods;
using Tango.Core.Helpers;
using Tango.DataStore;
using Tango.DataStore.Editing;
using Tango.FSE.Common;
using Tango.FSE.Common.Storage;
using Tango.PMR;
using Tango.PMR.Common;
using Tango.PMR.DataStore;
using DataType = Tango.DataStore.DataType;
namespace Tango.FSE.MachineConfiguration.Dialogs
{
public class DataStoreItemEditDialogViewVM : FSEDialogViewVM
{
private const int MAX_FILE_SIZE_KB = 100;
[TangoInject]
private IStorageProvider StorageProvider { get; set; }
[TangoInject]
private Common.Notifications.INotificationProvider NotificationProvider { get; set; }
private DataStoreItemModel _item;
public DataStoreItemModel Item
{
get { return _item; }
set
{
_item = value;
RaisePropertyChangedAuto();
if (_item.IsGlobal)
{
Value = _item.GlobalItem.Value;
}
else
{
Value = _item.Value;
}
Type = _item.Type;
if (Type == DataType.Proto)
{
ProtoMessageType = (Value as DataStoreProtoObject).MessageType;
}
if (_item.IsGlobal)
{
EditingValue = _item.GlobalItem.ToString();
}
else
{
EditingValue = _item.ToString();
}
}
}
public bool EnableTypeChange { get; set; }
private Object _value;
public Object Value
{
get { return _value; }
set { _value = value; RaisePropertyChangedAuto(); }
}
private DataType _type;
public DataType Type
{
get { return _type; }
set { _type = value; RaisePropertyChangedAuto(); OnEditingValueChanged(); }
}
private DataStoreMessageType _protoMessageType;
public DataStoreMessageType ProtoMessageType
{
get { return _protoMessageType; }
set { _protoMessageType = value; RaisePropertyChangedAuto(); OnEditingValueChanged(); }
}
private String _editingValue;
public String EditingValue
{
get { return _editingValue; }
set { _editingValue = value; RaisePropertyChangedAuto(); OnEditingValueChanged(); }
}
private String _error;
public String Error
{
get { return _error; }
set { _error = value; RaisePropertyChangedAuto(); RaisePropertyChanged(nameof(HasError)); InvalidateRelayCommands(); }
}
public bool HasError
{
get { return Error != null; }
}
public RelayCommand LoadFileCommand { get; set; }
public RelayCommand InitProtoCommand { get; set; }
public DataStoreItemEditDialogViewVM()
{
EnableTypeChange = true;
LoadFileCommand = new RelayCommand(LoadFile);
InitProtoCommand = new RelayCommand(InitProto);
TangoIOC.Default.Inject(this);
}
private void InitProto()
{
if (Type == DataType.Proto)
{
var type = MessageFactory.GetDataStorePMRTypeFromDataStoreMessageType(ProtoMessageType);
var instance = Activator.CreateInstance(type);
EditingValue = instance.ToJsonString();
}
}
private async void LoadFile()
{
if (Type == DataType.Bytes)
{
var result = await StorageProvider.OpenFile("Load a file");
if (result)
{
if ((new FileInfo(result.SelectedItem).Length / 1024) > MAX_FILE_SIZE_KB)
{
await NotificationProvider.ShowError($"The selected file size exceeds the maximum {MAX_FILE_SIZE_KB}kb allowed.");
return;
}
var bytes = File.ReadAllBytes(result.SelectedItem);
Value = bytes;
_editingValue = Convert.ToBase64String(bytes);
RaisePropertyChanged(nameof(EditingValue));
}
}
}
private void OnEditingValueChanged()
{
if (EditingValue != null)
{
try
{
Value = DataStoreHelper.ParseDataStoreValue(Type, EditingValue, ProtoMessageType);
Error = null;
}
catch (Exception ex)
{
Error = ex.Message;
}
}
}
protected override bool CanOK()
{
return base.CanOK() && !HasError;
}
}
}
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