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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.BL;
using Tango.BL.Entities;
using Tango.Core.Commands;
using Tango.SharedUI;
using Tango.SharedUI.Components;
using System.Data.Entity;
using Tango.MachineStudio.Common.Notifications;
using Tango.MachineStudio.Common.Authentication;
using Tango.BL.ActionLogs;
using Tango.BL.DTO;
using Tango.BL.Builders;
namespace Tango.MachineStudio.Sites.ViewModels
{
public class SiteDetailsViewVM : ViewModel
{
private ObservablesContext _db;
private INotificationProvider _notification;
private IAuthenticationProvider _authentication;
private IActionLogManager _actionLogManager;
private bool _isNew;
private SiteDTO _siteBeforeSave;
public event EventHandler Saved;
private Site _site;
public Site Site
{
get { return _site; }
set { _site = value; RaisePropertyChangedAuto(); }
}
private List<Organization> _organizations;
public List<Organization> Organizations
{
get { return _organizations; }
set { _organizations = value; RaisePropertyChangedAuto(); }
}
private SelectedObjectCollection<Rml> _rmls;
public SelectedObjectCollection<Rml> Rmls
{
get { return _rmls; }
set { _rmls = value; RaisePropertyChangedAuto(); }
}
private SelectedObjectCollection<ColorCatalog> _catalogs;
public SelectedObjectCollection<ColorCatalog> Catalogs
{
get { return _catalogs; }
set { _catalogs = value; RaisePropertyChangedAuto(); }
}
private List<Machine> _machines;
public List<Machine> Machines
{
get { return _machines; }
set { _machines = value; RaisePropertyChangedAuto(); }
}
public RelayCommand SaveCommand { get; set; }
public SiteDetailsViewVM()
{
SaveCommand = new RelayCommand(Save, () => IsFree);
}
public async Task Init(String siteGuid, INotificationProvider notification, IAuthenticationProvider authentication, IActionLogManager actionLogManager, bool isNew, string newSiteName = null)
{
_notification = notification;
_authentication = authentication;
_actionLogManager = actionLogManager;
_db = ObservablesContext.CreateDefault();
Organizations = await _db.Organizations.ToListAsync();
if (isNew)
{
Site = new Site();
Site.Name = newSiteName;
Site.Description = "My site description";
_db.Sites.Add(Site);
_isNew = true;
}
else
{
_isNew = false;
Site = await new SiteBuilder(_db).Set(siteGuid)
.WithSiteCatalogs()
.WithCatalogs()
.WithSiteRmls()
.WithRmls()
.WithOrganization()
.BuildAsync();
}
Machines = await _db.Machines.Where(x => x.SiteGuid == Site.Guid).Include(x => x.Organization).ToListAsync();
var rmls = await _db.Rmls.OrderBy(x => x.Name).ToListAsync();
var catalogs = await _db.ColorCatalogs.OrderBy(x => x.Name).ToListAsync();
Rmls = new SelectedObjectCollection<Rml>(rmls.ToObservableCollection(), Site.SitesRmls.Select(x => x.Rml).ToObservableCollection());
Catalogs = new SelectedObjectCollection<ColorCatalog>(catalogs.ToObservableCollection(), Site.SitesCatalogs.Select(x => x.ColorCatalog).ToObservableCollection());
_siteBeforeSave = SiteDTO.FromObservable(Site);
}
private async void Save()
{
try
{
if (!Site.Validate(_db))
{
_notification.ShowError(String.Join("\n", Site.ValidationErrors));
return;
}
IsFree = false;
using (_notification.PushTaskItem("Saving site details..."))
{
//Check if site organization has changed and there are no machines that belongs to this site but different organization.
if (_db.Machines.Any(x => x.SiteGuid == Site.Guid && x.OrganizationGuid != Site.OrganizationGuid))
{
throw new InvalidOperationException($"One or more machines belongs to this site but not to '{Site.Organization.Name}' organization.");
}
//Remove site rmls.
Site.SitesRmls.ToList().Where(x => !Rmls.SynchedSource.ToList().Exists(y => y.Guid == x.RmlGuid)).ToList().ForEach(x => _db.SitesRmls.Remove(x));
Site.SitesCatalogs.ToList().Where(x => !Catalogs.SynchedSource.ToList().Exists(y => y.Guid == x.ColorCatalogGuid)).ToList().ForEach(x => _db.SitesCatalogs.Remove(x));
foreach (var selectedRml in Rmls.SynchedSource.Where(x => !Site.SitesRmls.ToList().Exists(y => y.RmlGuid == x.Guid)))
{
_db.SitesRmls.Add(new SitesRml() { SiteGuid = Site.Guid, RmlGuid = selectedRml.Guid });
}
foreach (var selectedCatalog in Catalogs.SynchedSource.Where(x => !Site.SitesCatalogs.ToList().Exists(y => y.ColorCatalogGuid == x.Guid)))
{
_db.SitesCatalogs.Add(new SitesCatalog() { SiteGuid = Site.Guid, ColorCatalogGuid = selectedCatalog.Guid });
}
await _db.SaveChangesAsync();
if (_isNew)
{
_actionLogManager.InsertLog(BL.Enumerations.ActionLogType.SiteCreated, _authentication.CurrentUser, Site.Name, Site, "Site created using Machine Studio.");
}
else
{
SiteDTO siteAfter = SiteDTO.FromObservable(Site);
_actionLogManager.InsertLog(BL.Enumerations.ActionLogType.SiteSaved, _authentication.CurrentUser, _siteBeforeSave.Name, _siteBeforeSave, siteAfter, "Site saved using Machine Studio.");
_siteBeforeSave = siteAfter;
}
}
_db.Dispose();
Saved?.Invoke(this, new EventArgs());
}
catch (Exception ex)
{
LogManager.Log(ex, "Error saving site details.");
_notification.ShowError($"Error saving site details.\n{ex.FlattenMessage()}");
}
finally
{
IsFree = true;
}
}
}
}
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