blob: 4042f84ad0d52842fa0729bbdc6b1048904e7241 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.Entities;
using Tango.MachineStudio.Common;
using System.Data.Entity;
using Tango.MachineStudio.Common.Notifications;
using Tango.MachineStudio.Dispensers.Contracts;
using Tango.Core.Commands;
using Tango.Core.Threading;
namespace Tango.MachineStudio.Dispensers.ViewModels
{
public class MainViewVM : StudioViewModel<IMainView>
{
private ObservablesContext _dbContext;
private ObservablesContext _activeContext;
private INotificationProvider _notification;
private ActionTimer _filter_timer;
private ObservableCollection<Dispenser> _dispensers;
public ObservableCollection<Dispenser> Dispensers
{
get { return _dispensers; }
set { _dispensers = value; RaisePropertyChangedAuto(); }
}
private Dispenser _selectedDispenser;
public Dispenser SelectedDispenser
{
get { return _selectedDispenser; }
set { _selectedDispenser = value; RaisePropertyChangedAuto(); InvalidateRelayCommands(); }
}
private Dispenser _activeDispenser;
public Dispenser ActiveDispenser
{
get { return _activeDispenser; }
set { _activeDispenser = value; RaisePropertyChangedAuto(); }
}
private ObservableCollection<DispenserType> _dispenserTypes;
public ObservableCollection<DispenserType> DispenserTypes
{
get { return _dispenserTypes; }
set { _dispenserTypes = value; RaisePropertyChangedAuto(); }
}
private String _filter;
public String Filter
{
get { return _filter; }
set { _filter = value; RaisePropertyChangedAuto(); OnFilterChanged(); }
}
public RelayCommand AddDispenserCommand { get; set; }
public RelayCommand RemoveDispenserCommand { get; set; }
public RelayCommand ManageDispenserCommand { get; set; }
public RelayCommand BackToDispensersCommand { get; set; }
public RelayCommand SaveCommand { get; set; }
public MainViewVM(INotificationProvider notificationProvider)
{
_notification = notificationProvider;
_filter_timer = new ActionTimer(TimeSpan.FromMilliseconds(200));
ManageDispenserCommand = new RelayCommand(() => LoadSelectedDispenser(), () => SelectedDispenser != null);
BackToDispensersCommand = new RelayCommand(() => { View.NavigateTo(DispensersNavigationView.DispensersView); });
SaveCommand = new RelayCommand(SaveActiveDispenser);
AddDispenserCommand = new RelayCommand(AddNewDispenser);
RemoveDispenserCommand = new RelayCommand(RemoveSelectedDispenser, () => SelectedDispenser != null);
}
private void OnFilterChanged()
{
if (Filter != null)
{
_filter_timer.ResetReplace(() =>
{
IsFree = false;
Dispensers = _dbContext.Dispensers.Where(x => x.SerialNumber.ToLower().StartsWith(Filter.ToLower())).Include(x => x.DispenserType).Include(x => x.IdsPacks).ToList().ToObservableCollection();
IsFree = true;
});
}
}
private async void LoadSelectedDispenser(bool isNew = false)
{
if (_activeContext != null)
{
_activeContext.Dispose();
}
using (_notification.PushTaskItem("Loading dispenser data..."))
{
try
{
IsFree = false;
_activeContext = ObservablesContext.CreateDefault();
DispenserTypes = (await _activeContext.DispenserTypes.ToListAsync()).ToObservableCollection();
if (!isNew)
{
ActiveDispenser = await _activeContext.Dispensers.Include(x => x.DispenserType).Include(x => x.IdsPacks).SingleOrDefaultAsync(x => x.Guid == SelectedDispenser.Guid);
ActiveDispenser.InitMachine(_activeContext);
}
else
{
ActiveDispenser = new Dispenser();
_activeContext.Dispensers.Add(ActiveDispenser);
}
View.NavigateTo(DispensersNavigationView.DispenserView);
}
catch (Exception ex)
{
LogManager.Log(ex, $"Error loading dispenser {SelectedDispenser.SerialNumber}.");
_notification.ShowError($"An error occurred while trying to load the selected dispenser data.\n{ex.Message}");
}
finally
{
IsFree = true;
InvalidateRelayCommands();
}
}
}
private void AddNewDispenser()
{
LoadSelectedDispenser(true);
}
private async void RemoveSelectedDispenser()
{
if (_notification.ShowQuestion("Are you sure you want to delete the selected dispenser?"))
{
try
{
IsFree = false;
if (SelectedDispenser.IsInstalled)
{
_notification.ShowError("Cannot delete an installed dispenser. Please detach it first from it's machine and try again.");
return;
}
_dbContext.Dispensers.Remove(SelectedDispenser);
await _dbContext.SaveChangesAsync();
Dispensers.Remove(SelectedDispenser);
}
catch (Exception ex)
{
LogManager.Log(ex, $"Error removing dispenser {SelectedDispenser.SerialNumber}.");
_notification.ShowError($"An error occurred while trying to remove the selected dispenser.\n{ex.FlattenMessage()}");
}
finally
{
IsFree = true;
}
}
}
private async void SaveActiveDispenser()
{
using (_notification.PushTaskItem("Saving dispenser data..."))
{
try
{
IsFree = false;
await _activeContext.SaveChangesAsync();
if (SelectedDispenser != null)
{
await SelectedDispenser.Reload(_dbContext);
}
View.NavigateTo(DispensersNavigationView.DispensersView);
}
catch (Exception ex)
{
LogManager.Log(ex, $"Error saving dispenser {ActiveDispenser.SerialNumber}.");
_notification.ShowError($"An error occurred while trying to save the dispenser data.\n{ex.Message}");
}
finally
{
IsFree = true;
InvalidateRelayCommands();
}
}
}
public async override void OnApplicationReady()
{
_dbContext = ObservablesContext.CreateDefault();
await _dbContext.DispenserTypes.LoadAsync();
}
}
}
|
