refactoring the command form creation

.vscode/tasks.json

@@ -7,7 +7,7 @@
           "fileLocation": ["relative", "${workspaceFolder}"],
           "source": "dotnet",
           "pattern": {
-            "regexp": "^\\s+(.*)\\((\\d+),(\\d+)\\):\\s+(error|warning) (.+): (.*)$",
+            "regexp": "^\\s*(.*)\\((\\d+),(\\d+)\\):\\s+(error|warning) (.*)$",
             "file": 1,
             "line": 2,
             "column": 3,

CONTRIBUTING.md

@@ -49,6 +49,19 @@ Les tests sont répartis en :
   item « Tests d'intégration smoke par BC ».
 - `src/PostIt.Tests/` — tests unitaires du client desktop PostIt.
 
+## Onboarding assiste par agents IA
+
+Pour accelerer la prise en main du depot avec Copilot/Plan/Explore :
+
+- Parcours pas-a-pas : [doc/onboarding-agents.md](./doc/onboarding-agents.md)
+- Playbook d'usage des agents : [doc/agent-playbook.md](./doc/agent-playbook.md)
+- Matrice intentions -> agent -> preuves : [doc/agent-intent-matrix.md](./doc/agent-intent-matrix.md)
+
+Regle minimale en contribution assistee par agent :
+- expliciter l'impact architecture,
+- justifier le niveau de tests execute,
+- documenter les risques residuels.
+
 ## Le CHANGELOG.md
 
 Le `CHANGELOG.md` est un document de changement de version

README.md

@@ -28,6 +28,10 @@ sous [`doc/`](./doc/). Voir l'[index de la documentation](./doc/README.md)
 pour le sommaire complet. La racine de l'architecture est
 [Architecture.md](./doc/Architecture.md).
 
+Pour une prise en main guidee avec agents IA:
+- parcours onboarding: [doc/onboarding-agents.md](./doc/onboarding-agents.md)
+- playbook d'usage: [doc/agent-playbook.md](./doc/agent-playbook.md)
+
 
 # Construction et déploiement
 

doc/README.md

@@ -18,6 +18,9 @@ La racine de l'architecture est [Architecture.md](Architecture.md).
 | [architecture/postit.md](architecture/postit.md) | PostIt — topologie des projets, ViewLocator custo, navigation, DI, conventions de binding |
 | [architecture/decoupage-organisation.md](architecture/decoupage-organisation.md) | Découpage des projets .NET (Abstract, Server, Org, Api, Blogs, Web, Org.Tests) |
 | [testing.md](testing.md) | Stratégie de test : conventions des dossiers, EF Core in-memory, auth stubs, scaffold partagé |
+| [onboarding-agents.md](onboarding-agents.md) | Parcours pas-à-pas pour prise en main agents IA + architecture + tests |
+| [agent-playbook.md](agent-playbook.md) | Playbook d'usage de Copilot, Plan, Explore avec scénarios et anti-patterns |
+| [agent-intent-matrix.md](agent-intent-matrix.md) | Matrice intentions développeur -> agent -> preuves attendues |
 
 ## Roadmap & design exploration
 

doc/agent-intent-matrix.md

@@ -0,0 +1,20 @@
+# Matrice intentions -> agent -> preuves
+
+Cette matrice aide a choisir rapidement l'agent adapte et a exiger
+une sortie verifiable.
+
+| Intention developpeur | Agent principal | Entrees minimales | Sortie minimale attendue | Verification |
+|---|---|---|---|---|
+| Comprendre un BC avant changement | Explore | BC cible, profondeur, contrainte de perimetre | Composants, points d'entree, tests relies, risques | Lire les fichiers cites + confirmer tests proposes |
+| Decomposer une tache transverse | Plan | Objectif, contraintes, definition of done | Etapes ordonnees, dependances, criteres de verif | Verifier que chaque etape a une preuve observable |
+| Implementer une modif locale | Copilot | Fichier cible, comportement attendu, conventions | Patch minimal, justification courte | Build/test du projet impacte |
+| Ajouter un test smoke | Copilot (+Explore) | Route/endpoint, projet de test cible | Test + commande cible | Execution test cible |
+| Corriger une regression | Plan + Copilot | Symptome, zone suspecte, test attendu | Fix + test NonRegression | Test rouge avant, vert apres |
+| Diagnostiquer flux PostIt/OIDC | Explore + Plan | Flux, symptome, plateforme | Carte du flux + hypotheses testables | Verification manuelle + tests existants |
+
+## Regles d'arbitrage
+
+- Si l'intention est "comprendre": commencer par Explore.
+- Si l'intention est "orchestrer": commencer par Plan.
+- Si l'intention est "produire": utiliser Copilot apres cadrage.
+- Si une sortie n'inclut pas de preuve, elle est incomplete.

src/PostIt/PostIt.Tests/BillingCommandPageViewModelTests.cs

@@ -1,7 +1,8 @@
-using System.Net.Http;
 using System.Text.Json;
+using PostIt.Helpers;
 using PostIt.Services;
 using PostIt.ViewModels;
+using PostIt.ViewModels.Commands;
 using Yavsc;
 using Yavsc.Abstract.Workflow;
 using Yavsc.Api.Client;
@@ -16,19 +17,19 @@ public class BillingCommandPageViewModelTests
     {
         var api = new RecordingApi();
         var client = new BillingApiClient(api, "https://business.example/api/v1/");
-        var vm = new BillingCommandPageViewModel(
+        var vm =
+          new CommandFormSummary { Id = 12, ActionName = "Rdv", Title = "Rendez-vous" }
+          .CreateCommandPageViewModel(
             new ActivityInfo { Code = "dev", Name = "Développement" },
             new ActivityUserDisplayItem { PerformerId = "perf-1", UserName = "Alice" },
-            new CommandFormSummary { Id = 12, ActionName = "Rdv", Title = "Rendez-vous" },
+            client) as RdvViewModel;
-            client)
+
-        {
+            vm.EventDate = DateTime.Parse("2026-09-02 14:30");
-            EventDateText = "2026-09-02 14:30",
+        vm.Reason = "Point de cadrage";
-            Reason = "Point de cadrage",
+        vm.Address = "1 rue du Test";
-            Address = "1 rue du Test",
+        vm.Latitude = 48.8566;
-            LatitudeText = "48.8566",
+        vm.Longitude = 2.3522;
-            LongitudeText = "2.3522",
+        vm.Consent = true;
-            Consent = true,
-        };
 
         await vm.SubmitCommand.ExecuteAsync(null);
 
@@ -47,10 +48,12 @@ public class BillingCommandPageViewModelTests
     {
         var api = new RecordingApi();
         var client = new BillingApiClient(api, "https://business.example/api/v1/");
-        var vm = new BillingCommandPageViewModel(
+
+        var vm =
+         new CommandFormSummary { Id = 13, ActionName = "Book", Title = "Réservation" }
+         .CreateCommandPageViewModel(
             new ActivityInfo { Code = "book", Name = "Book" },
             new ActivityUserDisplayItem { PerformerId = "perf-2", UserName = "Bob" },
-            new CommandFormSummary { Id = 13, ActionName = "Book", Title = "Réservation" },
             client);
 
         await vm.SubmitCommand.ExecuteAsync(null);
@@ -64,19 +67,19 @@ public class BillingCommandPageViewModelTests
     {
         var api = new RecordingApi();
         var client = new BillingApiClient(api, "https://business.example/api/v1/");
-        var vm = new BillingCommandPageViewModel(
+        var vm =
+
+        new CommandFormSummary { Id = 12, ActionName = "Rdv", Title = "Rendez-vous" }
+        .CreateCommandPageViewModel(
             new ActivityInfo { Code = "dev", Name = "Développement" },
             new ActivityUserDisplayItem { PerformerId = "perf-1", UserName = "Alice" },
-            new CommandFormSummary { Id = 12, ActionName = "Rdv", Title = "Rendez-vous" },
+            client) as RdvViewModel;
-            client)
+        vm.EventDate = DateTime.Parse("2026-09-02 14:30");
-        {
+        vm.Reason = "Point de cadrage";
-            EventDateText = "2026-09-02 14:30",
+        vm.Address = "1 rue du Test";
-            Reason = "Point de cadrage",
+        vm.Latitude = 0;
-            Address = "1 rue du Test",
+        vm.Longitude = 0;
-            LatitudeText = string.Empty,
+        vm.Consent = true;
-            LongitudeText = string.Empty,
-            Consent = true,
-        };
 
         await vm.SubmitCommand.ExecuteAsync(null);
 
@@ -97,16 +100,17 @@ public class BillingCommandPageViewModelTests
 
             var api = new RecordingApi();
             var client = new BillingApiClient(api, "https://business.example/api/v1/");
-            var vm = new BillingCommandPageViewModel(
+            var vm =
+             new CommandFormSummary { Id = 12, ActionName = "Rdv", Title = "Rendez-vous" }
+             .CreateCommandPageViewModel(
                 new ActivityInfo { Code = "dev", Name = "Développement" },
                 new ActivityUserDisplayItem { PerformerId = "perf-1", UserName = "Alice" },
-                new CommandFormSummary { Id = 12, ActionName = "Rdv", Title = "Rendez-vous" },
+                client) as RdvViewModel;
-                client);
 
             await vm.UseCurrentLocationCommand.ExecuteAsync(null);
 
-            Assert.Equal("48.8566", vm.LatitudeText);
+            Assert.Equal(48.8566, vm.Latitude);
-            Assert.Equal("2.3522", vm.LongitudeText);
+            Assert.Equal(2.3522, vm.Longitude);
         }
         finally
         {
@@ -126,19 +130,18 @@ public class BillingCommandPageViewModelTests
             }
         };
         var client = new BillingApiClient(api, "https://business.example/api/v1/");
-        var vm = new BillingCommandPageViewModel(
+        var vm =
+        new CommandFormSummary { Id = 13, ActionName = "Brush", Title = "Coupe" }
+        .CreateCommandPageViewModel(
             new ActivityInfo { Code = "brush", Name = "Brush" },
             new ActivityUserDisplayItem { PerformerId = "perf-2", UserName = "Bob" },
-            new CommandFormSummary { Id = 13, ActionName = "Brush", Title = "Coupe" },
+            client) as BrushViewModel;
-            client)
+        vm.EventDate = DateTime.Parse("2026-09-02 14:30");
-        {
+        vm.Address = "1 rue du Test";
-            EventDateText = "2026-09-02 14:30",
+        vm.Latitude = 48.8566;
-            Address = "1 rue du Test",
+        vm.Longitude = 2.3522;
-            LatitudeText = "48.8566",
+        vm.Consent = true;
-            LongitudeText = "2.3522",
+        vm.AdditionalInfo = "Prévoir shampoing";
-            Consent = true,
-            AdditionalInfo = "Prévoir shampoing",
-        };
 
         await vm.InitializeAsync();
         vm.SelectedPrestation = vm.AvailablePrestations[1];
@@ -162,18 +165,17 @@ public class BillingCommandPageViewModelTests
             }
         };
         var client = new BillingApiClient(api, "https://business.example/api/v1/");
-        var vm = new BillingCommandPageViewModel(
+        var vm =
+        new CommandFormSummary { Id = 14, ActionName = "MBrush", Title = "Coupe groupée" }
+        .CreateCommandPageViewModel(
             new ActivityInfo { Code = "mbrush", Name = "MBrush" },
             new ActivityUserDisplayItem { PerformerId = "perf-3", UserName = "Cara" },
-            new CommandFormSummary { Id = 14, ActionName = "MBrush", Title = "Coupe groupée" },
+            client) as PostIt.ViewModels.Commands.BrushViewModel;
-            client)
+        vm.EventDate = DateTime.Parse("2026-09-03 10:00");
-        {
+        vm.Address = "2 rue du Test";
-            EventDateText = "2026-09-03 10:00",
+        vm.Latitude = 48.8567;
-            Address = "2 rue du Test",
+        vm.Longitude = 2.3523;
-            LatitudeText = "48.8567",
+        vm.Consent = true;
-            LongitudeText = "2.3523",
-            Consent = true,
-        };
 
         await vm.InitializeAsync();
         vm.MultiPrestations[0].IsSelected = true;
@@ -200,12 +202,12 @@ public class BillingCommandPageViewModelTests
             }
         };
         var client = new BillingApiClient(api, "https://business.example/api/v1/");
-        var vm = new BillingCommandPageViewModel(
+        var vm =
+           new CommandFormSummary { Id = 13, ActionName = "Brush", Title = "Coupe" }
+         .CreateCommandPageViewModel(
             new ActivityInfo { Code = "brush", Name = "Brush" },
             new ActivityUserDisplayItem { PerformerId = "perf-2", UserName = "Bob" },
-            new CommandFormSummary { Id = 13, ActionName = "Brush", Title = "Coupe" },
+            client) as BrushViewModel;
-            client);
-
         await vm.InitializeAsync(new BillingQueryDetailsDto
         {
             Id = 77,

src/PostIt/PostIt/Helpers/FormHelpers.cs

@@ -0,0 +1,45 @@
+using System;
+using PostIt.ViewModels;
+using Yavsc.Abstract.Workflow;
+using Yavsc.Api.Client;
+
+namespace PostIt.Helpers;
+
+public static class FormHelpers
+{
+    public static BillingCommandPageViewModel
+    CreateCommandPageViewModel(
+        this CommandFormSummary form,
+        ActivityInfo activity,
+        ActivityUserDisplayItem performer,
+        BillingApiClient billingClient)
+    {
+
+        string formVMName = form.ActionName + "ViewModel";
+
+        string formOnActivityVMName = activity.Code + formVMName;
+
+        var vmType = Type.GetType(formOnActivityVMName);
+        if (vmType == null)
+        {
+            vmType = Type.GetType(formVMName);
+        }
+        if (vmType == null)
+        {
+            throw new InvalidOperationException($"Cannot find type '{formOnActivityVMName}' or '{formVMName}'");
+        }
+        if (!typeof(BillingCommandPageViewModel).IsAssignableFrom(vmType))
+        {
+            throw new InvalidOperationException($"The type '{formOnActivityVMName}' or '{formVMName}' is not a BillingCommandPageViewModel");
+        }
+
+        var vm = Activator.CreateInstance(vmType);
+
+        if (vm == null)
+        {
+            throw new InvalidOperationException($"Cannot create instance of '{formOnActivityVMName}' or '{formVMName}'");
+        }
+
+        return vm as BillingCommandPageViewModel ?? throw new InvalidOperationException($"The type '{formOnActivityVMName}' or '{formVMName}' is not a BillingCommandPageViewModel");
+    }
+}

src/PostIt/PostIt/Helpers/ServiceCollectionHelpers.cs

@@ -3,6 +3,7 @@ using Microsoft.Extensions.DependencyInjection;
 using PostIt.Services;
 using PostIt.ViewModels;
 using PostIt.Views;
+using PostIt.Views.Commands;
 using Yavsc.Api.Client;
 
 namespace PostIt.Helpers;
@@ -49,7 +50,8 @@ public static class ServiceCollectionHelpers
         services.AddSingleton<CirclesPage>();
         services.AddSingleton<ActivitiesPage>();
         services.AddTransient<CommandFormsPage>();
-        services.AddTransient<BillingCommandPage>();
+        services.AddTransient<RdvPage>();
+        services.AddTransient<BrushPage>();
         services.AddTransient<BillingQueriesPage>();
         // ViewModels
         services.AddSingleton(settings);

src/PostIt/PostIt/ViewLocator.cs

@@ -4,7 +4,9 @@ using Avalonia.Controls;
 using Avalonia.Controls.Templates;
 using Microsoft.Extensions.DependencyInjection;
 using PostIt.ViewModels;
+using PostIt.ViewModels.Commands;
 using PostIt.Views;
+using PostIt.Views.Commands;
 
 namespace PostIt;
 
@@ -41,8 +43,7 @@ public class ViewLocator : IDataTemplate
             HomePageViewModel => services.GetRequiredService<HomePage>(),
             ActivitiesPageViewModel => services.GetRequiredService<ActivitiesPage>(),
             CommandFormsPageViewModel => services.GetRequiredService<CommandFormsPage>(),
-            BillingCommandPageViewModel => services.GetRequiredService<BillingCommandPage>(),
+            RdvViewModel => services.GetRequiredService<RdvPage>(),
-            BillingQueriesPageViewModel => services.GetRequiredService<BillingQueriesPage>(),
             SignaturePageViewModel => services.GetRequiredService<SignaturePage>(),
             AddCircleMemberDialogViewModel => services.GetRequiredService<AddCircleMemberDialog>(),
             CirclesPageViewModel => services.GetRequiredService<CirclesPage>(),

src/PostIt/PostIt/ViewModels/BillingCommandPageViewModel.cs

@@ -1,490 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Globalization;
-using System.Net;
-using System.Net.Http;
-using System.Linq;
-using System.Threading.Tasks;
-using CommunityToolkit.Mvvm.ComponentModel;
-using CommunityToolkit.Mvvm.Input;
-using PostIt.Services;
-using Yavsc;
-using Yavsc.Abstract.Workflow;
-using Yavsc.Api.Client;
-using Yavsc.Models.Billing;
-using Yavsc.Models.Haircut;
-
-namespace PostIt.ViewModels;
-
-public partial class BillingCommandPageViewModel : ViewModelBase
-{
-    private readonly BillingApiClient _billingClient;
-
-    public ActivityInfo Activity { get; }
-    public ActivityUserDisplayItem Performer { get; }
-    public CommandFormSummary Form { get; }
-
-    [ObservableProperty]
-    public partial bool IsBusy { get; set; }
-
-    [ObservableProperty]
-    public partial string StatusMessage { get; set; }
-
-    [ObservableProperty]
-    public partial string EventDateText { get; set; }
-
-    [ObservableProperty]
-    public partial string Reason { get; set; } = string.Empty;
-
-    [ObservableProperty]
-    public partial string Address { get; set; } = string.Empty;
-
-    [ObservableProperty]
-    public partial string LatitudeText { get; set; } = string.Empty;
-
-    [ObservableProperty]
-    public partial string LongitudeText { get; set; } = string.Empty;
-
-    [ObservableProperty]
-    public partial bool Consent { get; set; } = true;
-
-    [ObservableProperty]
-    public partial ObservableCollection<HairPrestationDto> AvailablePrestations { get; set; } = new();
-
-    [ObservableProperty]
-    public partial HairPrestationDto? SelectedPrestation { get; set; }
-
-    [ObservableProperty]
-    public partial ObservableCollection<SelectableHairPrestationItem> MultiPrestations { get; set; } = new();
-
-    [ObservableProperty]
-    public partial string AdditionalInfo { get; set; } = string.Empty;
-
-    [ObservableProperty]
-    public partial long? ExistingQueryId { get; set; }
-
-    [ObservableProperty]
-    public partial QueryStatus CommandStatus { get; set; } = QueryStatus.Inserted;
-
-    public bool CanUseCurrentLocation => IsSupported && !IsBusy;
-
-    public string Title => Form.Title;
-    public string PerformerLabel => Performer.UserName;
-    public string ActivityLabel => Activity.Name;
-    public bool IsSupported => IsRdv || IsBrush || IsMultiBrush;
-    public bool IsRdv => string.Equals(Form.ActionName, BillingCodes.Rdv, StringComparison.Ordinal);
-    public bool IsBrush => string.Equals(Form.ActionName, BillingCodes.Brush, StringComparison.Ordinal);
-    public bool IsMultiBrush => string.Equals(Form.ActionName, BillingCodes.MBrush, StringComparison.Ordinal);
-    public bool ShowsReason => IsRdv;
-    public bool ShowsAdditionalInfo => IsBrush;
-    public bool ShowsSinglePrestation => IsBrush;
-    public bool ShowsMultiplePrestations => IsMultiBrush;
-    public string BillingRoute => $"/billing/{Form.ActionName}";
-    public bool IsEditingExisting => ExistingQueryId.HasValue;
-    public string SubmitLabel => IsEditingExisting ? "Mettre à jour la commande" : "Poster la commande";
-    public string SupportMessage => IsSupported
-        ? IsRdv
-            ? "Complétez les informations du rendez-vous puis postez la commande."
-            : IsBrush
-                ? "Choisissez une prestation coiffure puis postez la commande."
-                : "Choisissez une ou plusieurs prestations coiffure puis postez la commande."
-        : $"Le formulaire {Form.ActionName} n'est pas encore pris en charge dans PostIt.";
-
-    public override bool CanNavigateNext
-    {
-        get => false;
-        protected set { _ = value; }
-    }
-
-    public override bool CanNavigatePrevious
-    {
-        get => true;
-        protected set { _ = value; }
-    }
-
-    public BillingCommandPageViewModel(
-        ActivityInfo activity,
-        ActivityUserDisplayItem performer,
-        CommandFormSummary form,
-        BillingApiClient billingClient)
-    {
-        Activity = activity ?? throw new ArgumentNullException(nameof(activity));
-        Performer = performer ?? throw new ArgumentNullException(nameof(performer));
-        Form = form ?? throw new ArgumentNullException(nameof(form));
-        _billingClient = billingClient ?? throw new ArgumentNullException(nameof(billingClient));
-
-        EventDateText = DateTime.Now.AddDays(1).ToString("yyyy-MM-dd HH:mm", CultureInfo.InvariantCulture);
-        StatusMessage = SupportMessage;
-    }
-
-    partial void OnExistingQueryIdChanged(long? value)
-    {
-        OnPropertyChanged(nameof(IsEditingExisting));
-        OnPropertyChanged(nameof(SubmitLabel));
-    }
-
-    partial void OnIsBusyChanged(bool value)
-    {
-        OnPropertyChanged(nameof(CanUseCurrentLocation));
-        UseCurrentLocationCommand.NotifyCanExecuteChanged();
-    }
-
-    public async Task InitializeAsync(BillingQueryDetailsDto? existingQuery = null)
-    {
-        if (!IsBrush && !IsMultiBrush)
-        {
-            if (existingQuery is not null)
-            {
-                ApplyExistingQuery(existingQuery);
-            }
-
-            return;
-        }
-
-        IsBusy = true;
-        try
-        {
-            var prestations = await _billingClient.GetHairPrestationsAsync(Form.ActionName).ConfigureAwait(true);
-            AvailablePrestations = new ObservableCollection<HairPrestationDto>(prestations ?? new List<HairPrestationDto>());
-            SelectedPrestation = AvailablePrestations.FirstOrDefault();
-            MultiPrestations = new ObservableCollection<SelectableHairPrestationItem>(AvailablePrestations.Select(SelectableHairPrestationItem.FromDto));
-
-            StatusMessage = AvailablePrestations.Count == 0
-                ? "Aucune prestation coiffure disponible."
-                : SupportMessage;
-        }
-        catch (HttpRequestException ex) when (ex.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden)
-        {
-            StatusMessage = "Accès refusé au catalogue de prestations (scope 'api'). Déconnectez puis reconnectez-vous.";
-        }
-        catch (Exception ex)
-        {
-            StatusMessage = $"Erreur lors du chargement des prestations: {ex.Message}";
-        }
-        finally
-        {
-            IsBusy = false;
-        }
-
-        if (existingQuery is not null)
-        {
-            ApplyExistingQuery(existingQuery);
-        }
-    }
-
-    [RelayCommand]
-    private async Task SubmitAsync()
-    {
-        if (!IsSupported)
-        {
-            StatusMessage = SupportMessage;
-            return;
-        }
-
-        if (!Consent)
-        {
-            StatusMessage = "Le consentement est requis pour poster la commande.";
-            return;
-        }
-
-        if (!TryParseEventDate(out var eventDate))
-        {
-            StatusMessage = "La date doit être saisie au format yyyy-MM-dd HH:mm.";
-            return;
-        }
-
-        if (IsRdv && string.IsNullOrWhiteSpace(Reason))
-        {
-            StatusMessage = "Le motif du rendez-vous est requis.";
-            return;
-        }
-
-        if (string.IsNullOrWhiteSpace(Address))
-        {
-            StatusMessage = "L'adresse du rendez-vous est requise.";
-            return;
-        }
-
-        if (!TryParseCoordinates(out var latitude, out var longitude, out var coordinateError))
-        {
-            StatusMessage = coordinateError;
-            return;
-        }
-
-        IsBusy = true;
-        try
-        {
-            var address = Address.Trim();
-            var locationPayload = BuildLocationPayload(address, latitude, longitude);
-
-            var payload = new BillingQueryDetailsDto
-            {
-                Id = ExistingQueryId ?? 0,
-                BillingCode = Form.ActionName,
-                ActivityCode = Activity.Code,
-                PerformerId = Performer.PerformerId,
-                Consent = Consent,
-                EventDate = eventDate,
-                Status = CommandStatus,
-                Reason = Reason.Trim(),
-                AdditionalInfo = string.IsNullOrWhiteSpace(AdditionalInfo) ? string.Empty : AdditionalInfo.Trim(),
-                Location = new BillingLocationDto
-                {
-                    Address = address,
-                    Latitude = latitude,
-                    Longitude = longitude,
-                }
-            };
-
-            if (IsRdv)
-            {
-                if (IsEditingExisting)
-                {
-                    await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
-                }
-                else
-                {
-                    await _billingClient.CreateAsync(Form.ActionName, new
-                    {
-                        ActivityCode = Activity.Code,
-                        PerformerId = Performer.PerformerId,
-                        Consent,
-                        EventDate = eventDate,
-                        Location = locationPayload,
-                        Reason = payload.Reason,
-                        Status = payload.Status,
-                    }).ConfigureAwait(true);
-                }
-            }
-            else if (IsBrush)
-            {
-                if (SelectedPrestation is null)
-                {
-                    StatusMessage = "Sélectionnez une prestation coiffure.";
-                    return;
-                }
-
-                payload.PrestationId = SelectedPrestation.Id;
-
-                if (IsEditingExisting)
-                {
-                    await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
-                }
-                else
-                {
-                    await _billingClient.CreateAsync(Form.ActionName, new
-                    {
-                        ActivityCode = Activity.Code,
-                        PerformerId = Performer.PerformerId,
-                        Consent,
-                        EventDate = (DateTime?)eventDate,
-                        Location = locationPayload,
-                        PrestationId = SelectedPrestation.Id,
-                        AdditionalInfo = string.IsNullOrWhiteSpace(AdditionalInfo) ? null : AdditionalInfo.Trim(),
-                        Status = payload.Status,
-                    }).ConfigureAwait(true);
-                }
-            }
-            else if (IsMultiBrush)
-            {
-                var selectedPrestations = MultiPrestations.Where(x => x.IsSelected).ToList();
-                if (selectedPrestations.Count == 0)
-                {
-                    StatusMessage = "Sélectionnez au moins une prestation coiffure.";
-                    return;
-                }
-
-                payload.PrestationIds = selectedPrestations.Select(x => x.Id).ToList();
-
-                if (IsEditingExisting)
-                {
-                    await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
-                }
-                else
-                {
-                    await _billingClient.CreateAsync(Form.ActionName, new
-                    {
-                        ActivityCode = Activity.Code,
-                        PerformerId = Performer.PerformerId,
-                        Consent,
-                        EventDate = eventDate,
-                        Location = locationPayload,
-                        Prestations = selectedPrestations.Select(x => new { PrestationId = x.Id }).ToList(),
-                        Status = payload.Status,
-                    }).ConfigureAwait(true);
-                }
-            }
-
-            StatusMessage = IsEditingExisting
-                ? $"Commande #{ExistingQueryId} mise à jour sur {BillingRoute} pour {Performer.UserName}."
-                : $"Commande transmise sur {BillingRoute} pour {Performer.UserName}.";
-        }
-        catch (HttpRequestException ex) when (ex.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden)
-        {
-            StatusMessage = "Accès refusé au billing (scope 'api'). Déconnectez puis reconnectez-vous.";
-        }
-        catch (Exception ex)
-        {
-            StatusMessage = $"Erreur lors de l'envoi: {ex.Message}";
-        }
-        finally
-        {
-            IsBusy = false;
-        }
-    }
-
-    [RelayCommand(CanExecute = nameof(CanUseCurrentLocation))]
-    private async Task UseCurrentLocationAsync()
-    {
-        if (!CanUseCurrentLocation)
-        {
-            return;
-        }
-
-        IsBusy = true;
-        try
-        {
-            var result = await Platform.TryGetCurrentLocationAsync(default).ConfigureAwait(true);
-            if (!result.IsSuccess || !result.Latitude.HasValue || !result.Longitude.HasValue)
-            {
-                StatusMessage = result.Message;
-                return;
-            }
-
-            LatitudeText = result.Latitude.Value.ToString(CultureInfo.InvariantCulture);
-            LongitudeText = result.Longitude.Value.ToString(CultureInfo.InvariantCulture);
-            StatusMessage = string.IsNullOrWhiteSpace(Address)
-                ? "Position récupérée. Complétez l'adresse puis envoyez la commande."
-                : result.Message;
-        }
-        catch (OperationCanceledException)
-        {
-            StatusMessage = "La récupération de la position a été annulée.";
-        }
-        catch (Exception ex)
-        {
-            StatusMessage = $"Impossible de récupérer la position: {ex.Message}";
-        }
-        finally
-        {
-            IsBusy = false;
-        }
-    }
-
-    private void ApplyExistingQuery(BillingQueryDetailsDto existingQuery)
-    {
-        ExistingQueryId = existingQuery.Id;
-        CommandStatus = existingQuery.Status;
-        Consent = existingQuery.Consent;
-        Reason = existingQuery.Reason ?? string.Empty;
-        AdditionalInfo = existingQuery.AdditionalInfo ?? string.Empty;
-
-        if (existingQuery.EventDate is not null)
-        {
-            EventDateText = existingQuery.EventDate.Value
-                .ToLocalTime()
-                .ToString("yyyy-MM-dd HH:mm", CultureInfo.InvariantCulture);
-        }
-
-        if (existingQuery.Location is not null)
-        {
-            Address = existingQuery.Location.Address ?? string.Empty;
-            LatitudeText = existingQuery.Location.Latitude?.ToString(CultureInfo.InvariantCulture) ?? string.Empty;
-            LongitudeText = existingQuery.Location.Longitude?.ToString(CultureInfo.InvariantCulture) ?? string.Empty;
-        }
-
-        if (IsBrush && existingQuery.PrestationId is not null)
-        {
-            SelectedPrestation = AvailablePrestations.FirstOrDefault(x => x.Id == existingQuery.PrestationId.Value);
-        }
-
-        if (IsMultiBrush)
-        {
-            var selectedIds = existingQuery.PrestationIds is null
-                ? new HashSet<long>()
-                : new HashSet<long>(existingQuery.PrestationIds);
-            foreach (var item in MultiPrestations)
-            {
-                item.IsSelected = selectedIds.Contains(item.Id);
-            }
-        }
-
-        StatusMessage = $"Commande #{existingQuery.Id} chargée.";
-    }
-
-    private bool TryParseEventDate(out DateTime eventDate)
-    {
-        return DateTime.TryParse(
-            EventDateText,
-            CultureInfo.CurrentCulture,
-            DateTimeStyles.AssumeLocal,
-            out eventDate)
-            || DateTime.TryParse(
-                EventDateText,
-                CultureInfo.InvariantCulture,
-                DateTimeStyles.AssumeLocal,
-                out eventDate);
-    }
-
-    private static bool TryParseCoordinate(string text, out double value)
-    {
-        return double.TryParse(text, NumberStyles.Float | NumberStyles.AllowThousands, CultureInfo.CurrentCulture, out value)
-            || double.TryParse(text, NumberStyles.Float | NumberStyles.AllowThousands, CultureInfo.InvariantCulture, out value);
-    }
-
-    private static object BuildLocationPayload(string address, double? latitude, double? longitude)
-    {
-        if (latitude.HasValue && longitude.HasValue)
-        {
-            return new
-            {
-                Address = address,
-                Latitude = latitude.Value,
-                Longitude = longitude.Value,
-            };
-        }
-
-        return new
-        {
-            Address = address,
-        };
-    }
-
-    private bool TryParseCoordinates(out double? latitude, out double? longitude, out string error)
-    {
-        latitude = null;
-        longitude = null;
-        error = string.Empty;
-
-        var latitudeMissing = string.IsNullOrWhiteSpace(LatitudeText);
-        var longitudeMissing = string.IsNullOrWhiteSpace(LongitudeText);
-
-        if (latitudeMissing && longitudeMissing)
-        {
-            return true;
-        }
-
-        if (latitudeMissing != longitudeMissing)
-        {
-            error = "Latitude et longitude doivent être renseignées ensemble, ou laissées vides toutes les deux.";
-            return false;
-        }
-
-        if (!TryParseCoordinate(LatitudeText, out var parsedLatitude))
-        {
-            error = "Latitude invalide.";
-            return false;
-        }
-
-        if (!TryParseCoordinate(LongitudeText, out var parsedLongitude))
-        {
-            error = "Longitude invalide.";
-            return false;
-        }
-
-        latitude = parsedLatitude;
-        longitude = parsedLongitude;
-        return true;
-    }
-}

src/PostIt/PostIt/ViewModels/BillingQueriesPageViewModel.cs

@@ -133,7 +133,7 @@ public partial class BillingQueriesPageViewModel : ViewModelBase
         try
         {
             var details = await _billingClient.GetQueryAsync(Form.ActionName, SelectedQuery.Id).ConfigureAwait(true);
-            var vm = new BillingCommandPageViewModel(Activity, Performer, Form, _billingClient);
+            var vm = Form.CreateCommandPageViewModel(Activity, Performer, _billingClient);
             await vm.InitializeAsync(details).ConfigureAwait(true);
             await app.PushPageAsync(vm).ConfigureAwait(true);
         }

src/PostIt/PostIt/ViewModels/CommandFormsPageViewModel.cs

@@ -81,7 +81,8 @@ public partial class CommandFormsPageViewModel : ViewModelBase
             throw new InvalidOperationException("Application PostIt indisponible.");
         }
 
-        var vm = SelectedForm.CreateCommandPageViewModel(Activity, Performer,  _billingClient);
+        var vm =  SelectedForm.CreateCommandPageViewModel(
+            Activity, Performer, _billingClient);
         await vm.InitializeAsync();
         await app.PushPageAsync(vm);
     }

src/PostIt/PostIt/ViewModels/Commands/BillingCommandPageViewModel.cs

@@ -0,0 +1,121 @@
+using System;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Yavsc;
+using Yavsc.Abstract.Workflow;
+using Yavsc.Api.Client;
+using Yavsc.Models.Billing;
+
+namespace PostIt.ViewModels;
+
+public abstract partial class BillingCommandPageViewModel : ViewModelBase
+{
+    protected readonly BillingApiClient _billingClient;
+
+    public ActivityInfo Activity { get; }
+    public ActivityUserDisplayItem Performer { get; }
+    public CommandFormSummary Form { get; }
+
+    [ObservableProperty]
+    public partial bool IsBusy { get; set; }
+
+    [ObservableProperty]
+    public partial string StatusMessage { get; set; }
+
+    [ObservableProperty]
+    public partial string Reason { get; set; } = string.Empty;
+
+
+
+    [ObservableProperty]
+    public partial bool Consent { get; set; } = true;
+
+
+    [ObservableProperty]
+    public partial string AdditionalInfo { get; set; } = string.Empty;
+
+    [ObservableProperty]
+    public partial long? ExistingQueryId { get; set; }
+
+    [ObservableProperty]
+    public partial QueryStatus CommandStatus { get; set; } = QueryStatus.Inserted;
+
+    public bool CanUseCurrentLocation => IsSupported && !IsBusy;
+
+    public string Title => Form.Title;
+    public string PerformerLabel => Performer.UserName;
+    public string ActivityLabel => Activity.Name;
+    public bool IsSupported => IsRdv || IsBrush || IsMultiBrush;
+    public bool IsRdv => string.Equals(Form.ActionName, BillingCodes.Rdv, StringComparison.Ordinal);
+    public bool IsBrush => string.Equals(Form.ActionName, BillingCodes.Brush, StringComparison.Ordinal);
+    public bool IsMultiBrush => string.Equals(Form.ActionName, BillingCodes.MBrush, StringComparison.Ordinal);
+    public bool ShowsReason => IsRdv;
+    public bool ShowsAdditionalInfo => IsBrush;
+    public bool ShowsSinglePrestation => IsBrush;
+    public bool ShowsMultiplePrestations => IsMultiBrush;
+    public string BillingRoute => $"/billing/{Form.ActionName}";
+    public bool IsEditingExisting => ExistingQueryId.HasValue;
+    public string SubmitLabel => IsEditingExisting ? "Mettre à jour la commande" : "Poster la commande";
+    public string SupportMessage => IsSupported
+        ? IsRdv
+            ? "Complétez les informations du rendez-vous puis postez la commande."
+            : IsBrush
+                ? "Choisissez une prestation coiffure puis postez la commande."
+                : "Choisissez une ou plusieurs prestations coiffure puis postez la commande."
+        : $"Le formulaire {Form.ActionName} n'est pas encore pris en charge dans PostIt.";
+
+    public override bool CanNavigateNext
+    {
+        get => false;
+        protected set { _ = value; }
+    }
+
+    public override bool CanNavigatePrevious
+    {
+        get => true;
+        protected set { _ = value; }
+    }
+
+    public BillingCommandPageViewModel(
+        ActivityInfo activity,
+        ActivityUserDisplayItem performer,
+        CommandFormSummary form,
+        BillingApiClient billingClient)
+    {
+        Activity = activity ?? throw new ArgumentNullException(nameof(activity));
+        Performer = performer ?? throw new ArgumentNullException(nameof(performer));
+        Form = form ?? throw new ArgumentNullException(nameof(form));
+        _billingClient = billingClient ?? throw new ArgumentNullException(nameof(billingClient));
+
+        StatusMessage = SupportMessage;
+    }
+
+    partial void OnExistingQueryIdChanged(long? value)
+    {
+        OnPropertyChanged(nameof(IsEditingExisting));
+        OnPropertyChanged(nameof(SubmitLabel));
+    }
+
+    partial void OnIsBusyChanged(bool value)
+    {
+        OnPropertyChanged(nameof(CanUseCurrentLocation));
+    }
+
+    public async Task InitializeAsync(BillingQueryDetailsDto? existingQuery = null)
+    {
+
+        if (existingQuery is not null)
+        {
+            ApplyExistingQuery(existingQuery);
+            return;
+        }
+    }
+
+    protected abstract void ApplyExistingQuery(BillingQueryDetailsDto existingQuery);
+
+
+
+    [RelayCommand]
+    protected abstract Task SubmitAsync();
+}

src/PostIt/PostIt/ViewModels/Commands/BrushViewModel.cs

@@ -0,0 +1,182 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using Yavsc.Abstract.Workflow;
+using Yavsc.Api.Client;
+using Yavsc.Models.Haircut;
+namespace PostIt.ViewModels.Commands;
+public partial class BrushViewModel : RdvViewModel
+{
+
+    [ObservableProperty]
+    public partial ObservableCollection<HairPrestationDto> AvailablePrestations { get; set; } = new();
+
+    [ObservableProperty]
+    public partial HairPrestationDto? SelectedPrestation { get; set; }
+
+    [ObservableProperty]
+    public partial ObservableCollection<SelectableHairPrestationItem> MultiPrestations { get; set; } = new();
+
+
+    public BrushViewModel(ActivityInfo activity, ActivityUserDisplayItem performer, CommandFormSummary form, BillingApiClient billingClient)
+        : base(activity, performer, form, billingClient)
+    {
+    }
+
+    protected override async void ApplyExistingQuery(BillingQueryDetailsDto existingQuery)
+    {
+           if (IsBrush && existingQuery.PrestationId is not null)
+        {
+            SelectedPrestation = AvailablePrestations.FirstOrDefault(x => x.Id == existingQuery.PrestationId.Value);
+        }
+
+        if (IsMultiBrush)
+        {
+            var selectedIds = existingQuery.PrestationIds is null
+                ? new HashSet<long>()
+                : new HashSet<long>(existingQuery.PrestationIds);
+            foreach (var item in MultiPrestations)
+            {
+                item.IsSelected = selectedIds.Contains(item.Id);
+            }
+        }
+
+        IsBusy = true;
+        try
+        {
+            var prestations = await _billingClient.GetHairPrestationsAsync
+            (Form.ActionName).ConfigureAwait(true);
+            AvailablePrestations = new ObservableCollection<HairPrestationDto>
+            (prestations ?? new List<HairPrestationDto>());
+            SelectedPrestation = AvailablePrestations.FirstOrDefault();
+            MultiPrestations = new ObservableCollection<SelectableHairPrestationItem>(AvailablePrestations.Select(SelectableHairPrestationItem.FromDto));
+
+            StatusMessage = AvailablePrestations.Count == 0
+                ? "Aucune prestation coiffure disponible."
+                : SupportMessage;
+        }
+        catch (HttpRequestException ex)
+        when (ex.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden)
+        {
+            StatusMessage = "Accès refusé au catalogue de prestations (scope 'api'). Déconnectez puis reconnectez-vous.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Erreur lors du chargement des prestations: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    protected override async Task SubmitAsync()
+    {
+
+
+
+        IsBusy = true;
+        try
+        {
+            var address = Address.Trim();
+            var locationPayload = BuildLocationPayload(address, Latitude, Longitude);
+
+            var payload = new BillingQueryDetailsDto
+            {
+                Id = ExistingQueryId ?? 0,
+                BillingCode = Form.ActionName,
+                ActivityCode = Activity.Code,
+                PerformerId = Performer.PerformerId,
+                Consent = Consent,
+                EventDate = EventDate,
+                Status = CommandStatus,
+                Reason = Reason.Trim(),
+                AdditionalInfo = string.IsNullOrWhiteSpace(AdditionalInfo) ? string.Empty : AdditionalInfo.Trim(),
+                Location = new BillingLocationDto
+                {
+                    Address = address,
+                    Latitude = Latitude,
+                    Longitude = Longitude,
+                }
+            };
+
+        if (IsBrush)
+            {
+                if (SelectedPrestation is null)
+                {
+                    StatusMessage = "Sélectionnez une prestation coiffure.";
+                    return;
+                }
+
+                payload.PrestationId = SelectedPrestation.Id;
+
+                if (IsEditingExisting)
+                {
+                    await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
+                }
+                else
+                {
+                    await _billingClient.CreateAsync(Form.ActionName, new
+                    {
+                        ActivityCode = Activity.Code,
+                        PerformerId = Performer.PerformerId,
+                        Consent,
+                        EventDate = (DateTime?)EventDate,
+                        Location = locationPayload,
+                        PrestationId = SelectedPrestation.Id,
+                        AdditionalInfo = string.IsNullOrWhiteSpace(AdditionalInfo) ? null : AdditionalInfo.Trim(),
+                        Status = payload.Status,
+                    }).ConfigureAwait(true);
+                }
+            }
+            else if (IsMultiBrush)
+            {
+                var selectedPrestations = MultiPrestations.Where(x => x.IsSelected).ToList();
+                if (selectedPrestations.Count == 0)
+                {
+                    StatusMessage = "Sélectionnez au moins une prestation coiffure.";
+                    return;
+                }
+
+                payload.PrestationIds = selectedPrestations.Select(x => x.Id).ToList();
+
+                if (IsEditingExisting)
+                {
+                    await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
+                }
+                else
+                {
+                    await _billingClient.CreateAsync(Form.ActionName, new
+                    {
+                        ActivityCode = Activity.Code,
+                        PerformerId = Performer.PerformerId,
+                        Consent,
+                        EventDate = EventDate,
+                        Location = locationPayload,
+                        Prestations = selectedPrestations.Select(x => new { PrestationId = x.Id }).ToList(),
+                        Status = payload.Status,
+                    }).ConfigureAwait(true);
+                }
+            }
+        }
+        catch (HttpRequestException ex)
+        when (ex.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden)
+        {
+            StatusMessage = "Accès refusé au billing (scope 'api'). Déconnectez puis reconnectez-vous.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Erreur lors de l'envoi de la commande: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+
+    }
+}

src/PostIt/PostIt/ViewModels/Commands/MBrushViewModel cs

@@ -0,0 +1,16 @@
+using PostIt.ViewModels;
+
+namespace PostIt.ViewModels.Comands;
+
+public class MBrushViewModel : BillingCommandPageViewModel
+{
+    public MBrushViewModel(ActivityInfo activity, ActivityUserDisplayItem performer, CommandFormSummary form, BillingApiClient billingClient)
+        : base(activity, performer, form, billingClient)
+    {
+    }
+
+    protected override void ApplyExistingQuery(BillingQueryDetailsDto existingQuery)
+    {
+        throw new System.NotImplementedException();
+    }
+}

src/PostIt/PostIt/ViewModels/Commands/RdvViewModel.cs

@@ -0,0 +1,210 @@
+using System;
+using System.Net;
+using System.Net.Http;
+using System.Threading.Tasks;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using PostIt.Services;
+using Yavsc.Abstract.Workflow;
+using Yavsc.Api.Client;
+
+namespace PostIt.ViewModels.Commands;
+
+public partial class RdvViewModel : BillingCommandPageViewModel
+{
+    [ObservableProperty]
+    public partial string Address { get; set; } = string.Empty;
+
+    [ObservableProperty]
+    public partial double Latitude { get; set; }
+
+    [ObservableProperty]
+    public partial double Longitude { get; set; }
+
+
+    [ObservableProperty]
+    public partial DateTime EventDate { get; set; }
+
+    public RdvViewModel(ActivityInfo activity, ActivityUserDisplayItem performer, CommandFormSummary form, BillingApiClient billingClient)
+        : base(activity, performer, form, billingClient)
+    {
+        EventDate = DateTime.Now.AddDays(1);
+    }
+
+    protected override void ApplyExistingQuery(BillingQueryDetailsDto existingQuery)
+    {
+        ExistingQueryId = existingQuery.Id;
+        CommandStatus = existingQuery.Status;
+        Consent = existingQuery.Consent;
+        Reason = existingQuery.Reason ?? string.Empty;
+        AdditionalInfo = existingQuery.AdditionalInfo ?? string.Empty;
+
+        if (existingQuery.EventDate is not null)
+        {
+            EventDate = existingQuery.EventDate.Value
+                .ToLocalTime();
+        }
+
+        if (existingQuery.Location is not null)
+        {
+            Address = existingQuery.Location.Address ?? string.Empty;
+            Latitude = existingQuery.Location.Latitude ?? 0;
+            Longitude = existingQuery.Location.Longitude ?? 0;
+        }
+
+
+
+        StatusMessage = $"Commande #{existingQuery.Id} chargée.";
+    }
+
+    [RelayCommand(CanExecute = nameof(CanUseCurrentLocation))]
+    private async Task UseCurrentLocationAsync()
+    {
+        if (!CanUseCurrentLocation)
+        {
+            return;
+        }
+
+        IsBusy = true;
+        try
+        {
+            var result = await Platform.TryGetCurrentLocationAsync(default).ConfigureAwait(true);
+            if (!result.IsSuccess || !result.Latitude.HasValue || !result.Longitude.HasValue)
+            {
+                StatusMessage = result.Message;
+                return;
+            }
+
+            Latitude = result.Latitude.Value;
+            Longitude = result.Longitude.Value;
+            StatusMessage = string.IsNullOrWhiteSpace(Address)
+                ? "Position récupérée. Complétez l'adresse puis envoyez la commande."
+                : result.Message;
+        }
+        catch (OperationCanceledException)
+        {
+            StatusMessage = "La récupération de la position a été annulée.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Impossible de récupérer la position: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+
+    protected static object BuildLocationPayload(string address, double? latitude, double? longitude)
+    {
+        if (latitude.HasValue && longitude.HasValue)
+        {
+            return new
+            {
+                Address = address,
+                Latitude = latitude.Value,
+                Longitude = longitude.Value,
+            };
+        }
+
+        return new
+        {
+            Address = address,
+        };
+    }
+
+
+    protected override async Task SubmitAsync()
+    {
+        if (!IsSupported)
+        {
+            StatusMessage = SupportMessage;
+            return;
+        }
+
+        if (!Consent)
+        {
+            StatusMessage = "Le consentement est requis pour poster la commande.";
+            return;
+        }
+
+        if (string.IsNullOrWhiteSpace(Address))
+        {
+            StatusMessage = "L'adresse du rendez-vous est requise.";
+            return;
+        }
+
+
+        if (IsRdv && string.IsNullOrWhiteSpace(Reason))
+        {
+            StatusMessage = "Le motif du rendez-vous est requis.";
+            return;
+        }
+
+
+
+        IsBusy = true;
+        try
+        {
+            var address = Address.Trim();
+            var locationPayload = BuildLocationPayload(address, Latitude, Longitude);
+
+            var payload = new BillingQueryDetailsDto
+            {
+                Id = ExistingQueryId ?? 0,
+                BillingCode = Form.ActionName,
+                ActivityCode = Activity.Code,
+                PerformerId = Performer.PerformerId,
+                Consent = Consent,
+                EventDate = EventDate,
+                Status = CommandStatus,
+                Reason = Reason.Trim(),
+                AdditionalInfo = string.IsNullOrWhiteSpace(AdditionalInfo) ? string.Empty : AdditionalInfo.Trim(),
+                Location = new BillingLocationDto
+                {
+                    Address = address,
+                    Latitude = Latitude,
+                    Longitude = Longitude,
+                }
+            };
+
+            if (IsRdv)
+            {
+                if (IsEditingExisting)
+                {
+                    await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
+                }
+                else
+                {
+                    await _billingClient.CreateAsync(Form.ActionName, new
+                    {
+                        ActivityCode = Activity.Code,
+                        PerformerId = Performer.PerformerId,
+                        Consent,
+                        EventDate = EventDate,
+                        Location = locationPayload,
+                        Reason = payload.Reason,
+                        Status = payload.Status,
+                    }).ConfigureAwait(true);
+                }
+            }
+            else
+
+            StatusMessage = IsEditingExisting
+                ? $"Commande #{ExistingQueryId} mise à jour sur {BillingRoute} pour {Performer.UserName}."
+                : $"Commande transmise sur {BillingRoute} pour {Performer.UserName}.";
+        }
+        catch (HttpRequestException ex) when (ex.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden)
+        {
+            StatusMessage = "Accès refusé au billing (scope 'api'). Déconnectez puis reconnectez-vous.";
+        }
+        catch (Exception ex)
+        {
+            StatusMessage = $"Erreur lors de l'envoi: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+}

src/PostIt/PostIt/ViewModels/ViewModelBase.cs

@@ -2,7 +2,7 @@
 
 namespace PostIt.ViewModels;
 
-public abstract partial class ViewModelBase : ObservableObject
+public abstract class ViewModelBase : ObservableObject
 {
      /// <summary>
     /// Gets if the user can navigate to the next page

src/PostIt/PostIt/Views/ActivitiesPage.axaml

@@ -32,7 +32,7 @@
                          ItemsSource="{Binding Activities}"
                          SelectedItem="{Binding SelectedActivity, Mode=TwoWay}">
                     <ListBox.ItemTemplate>
-                        <DataTemplate x:DataType="wf:ActivityBrowseItemDto">
+                        <DataTemplate x:DataType="wf:ActivityInfo">
                             <StackPanel Spacing="2" Margin="0,0,0,8">
                                 <TextBlock Text="{Binding Name}" FontWeight="Bold" />
                                 <TextBlock Text="{Binding Description}" TextWrapping="Wrap" FontSize="11" Opacity="0.7" />
@@ -53,7 +53,7 @@
                          ItemsSource="{Binding Specializations}"
                          SelectedItem="{Binding SelectedSpecialization, Mode=TwoWay}">
                     <ListBox.ItemTemplate>
-                        <DataTemplate x:DataType="wf:ActivityBrowseItemDto">
+                        <DataTemplate x:DataType="wf:ActivityInfo">
                             <StackPanel Spacing="2" Margin="0,0,0,8">
                                 <TextBlock Text="{Binding Name}" FontWeight="Bold" />
                                 <TextBlock Text="{Binding Description}" TextWrapping="Wrap" FontSize="11" Opacity="0.7" />

src/PostIt/PostIt/Views/BillingCommandPage.axaml

@@ -1,138 +0,0 @@
-<ContentPage xmlns="https://github.com/avaloniaui"
-             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-             xmlns:vm="using:PostIt.ViewModels"
-             x:Class="PostIt.Views.BillingCommandPage"
-             x:DataType="vm:BillingCommandPageViewModel"
-             Header="Commande billing">
-    <ScrollViewer>
-        <Grid RowDefinitions="Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto" ColumnDefinitions="Auto,*" Margin="12">
-            <TextBlock Grid.Row="0" Grid.ColumnSpan="2"
-                       Text="{Binding Title}"
-                       FontSize="18"
-                       FontWeight="Bold" />
-
-            <TextBlock Grid.Row="1" Grid.ColumnSpan="2"
-                       Margin="0,4,0,12"
-                       Text="{Binding SupportMessage}"
-                       TextWrapping="Wrap"
-                       Opacity="0.8" />
-
-            <TextBlock Grid.Row="2" Text="Utilisateur" VerticalAlignment="Center" Margin="0,0,12,8" />
-            <TextBox Grid.Row="2" Grid.Column="1" Text="{Binding PerformerLabel}" IsReadOnly="True" Margin="0,0,0,8" />
-
-            <TextBlock Grid.Row="3" Text="Activité" VerticalAlignment="Center" Margin="0,0,12,8" />
-            <TextBox Grid.Row="3" Grid.Column="1" Text="{Binding ActivityLabel}" IsReadOnly="True" Margin="0,0,0,8" />
-
-            <TextBlock Grid.Row="4" Text="Date" VerticalAlignment="Center" Margin="0,0,12,8" />
-            <TextBox Grid.Row="4" Grid.Column="1" Text="{Binding EventDateText, Mode=TwoWay}" Margin="0,0,0,8" />
-
-            <TextBlock Grid.Row="5"
-                       Text="Motif"
-                       VerticalAlignment="Center"
-                       Margin="0,0,12,8"
-                       IsVisible="{Binding ShowsReason}" />
-            <TextBox Grid.Row="5"
-                     Grid.Column="1"
-                     Text="{Binding Reason, Mode=TwoWay}"
-                     Margin="0,0,0,8"
-                     IsVisible="{Binding ShowsReason}" />
-
-            <TextBlock Grid.Row="6" Text="Adresse" VerticalAlignment="Center" Margin="0,0,12,8" />
-            <TextBox Grid.Row="6" Grid.Column="1" Text="{Binding Address, Mode=TwoWay}" Margin="0,0,0,8" />
-
-                <Button Grid.Row="7"
-                    Grid.ColumnSpan="2"
-                    HorizontalAlignment="Left"
-                    Margin="0,0,0,8"
-                    Content="Utiliser ma position"
-                    Command="{Binding UseCurrentLocationCommand}" />
-
-                <TextBlock Grid.Row="8" Text="Latitude" VerticalAlignment="Center" Margin="0,0,12,8" />
-                <TextBox Grid.Row="8" Grid.Column="1" Text="{Binding LatitudeText, Mode=TwoWay}" PlaceholderText="Optionnel" Margin="0,0,0,8" />
-
-                <TextBlock Grid.Row="9" Text="Longitude" VerticalAlignment="Center" Margin="0,0,12,8" />
-                <TextBox Grid.Row="9" Grid.Column="1" Text="{Binding LongitudeText, Mode=TwoWay}" PlaceholderText="Optionnel" Margin="0,0,0,8" />
-
-                <TextBlock Grid.Row="10"
-                       Text="Prestation"
-                       VerticalAlignment="Center"
-                       Margin="0,0,12,8"
-                       IsVisible="{Binding ShowsSinglePrestation}" />
-                <ComboBox Grid.Row="10"
-                      Grid.Column="1"
-                      ItemsSource="{Binding AvailablePrestations}"
-                      SelectedItem="{Binding SelectedPrestation, Mode=TwoWay}"
-                      Margin="0,0,0,8"
-                      IsVisible="{Binding ShowsSinglePrestation}">
-                <ComboBox.ItemTemplate>
-                    <DataTemplate>
-                        <StackPanel Spacing="2">
-                            <TextBlock Text="{Binding Title}" FontWeight="Bold" />
-                            <TextBlock Text="{Binding Details}" FontSize="11" Opacity="0.7" TextWrapping="Wrap" />
-                        </StackPanel>
-                    </DataTemplate>
-                </ComboBox.ItemTemplate>
-            </ComboBox>
-
-            <TextBlock Grid.Row="11"
-                       Text="Prestations"
-                       VerticalAlignment="Top"
-                       Margin="0,0,12,8"
-                       IsVisible="{Binding ShowsMultiplePrestations}" />
-            <ListBox Grid.Row="11"
-                     Grid.Column="1"
-                     ItemsSource="{Binding MultiPrestations}"
-                     IsVisible="{Binding ShowsMultiplePrestations}"
-                     MaxHeight="180"
-                     Margin="0,0,0,8">
-                <ListBox.ItemTemplate>
-                    <DataTemplate>
-                        <CheckBox IsChecked="{Binding IsSelected, Mode=TwoWay}" Margin="0,0,0,8">
-                            <StackPanel Spacing="2">
-                                <TextBlock Text="{Binding Title}" FontWeight="Bold" />
-                                <TextBlock Text="{Binding Details}" FontSize="11" Opacity="0.7" TextWrapping="Wrap" />
-                            </StackPanel>
-                        </CheckBox>
-                    </DataTemplate>
-                </ListBox.ItemTemplate>
-            </ListBox>
-
-            <TextBlock Grid.Row="12"
-                       Text="Informations"
-                       VerticalAlignment="Center"
-                       Margin="0,0,12,8"
-                       IsVisible="{Binding ShowsAdditionalInfo}" />
-            <TextBox Grid.Row="12"
-                     Grid.Column="1"
-                     Text="{Binding AdditionalInfo, Mode=TwoWay}"
-                     Margin="0,0,0,8"
-                     IsVisible="{Binding ShowsAdditionalInfo}" />
-
-            <CheckBox Grid.Row="13" Grid.ColumnSpan="2"
-                      Content="Je consens à la création de cette commande"
-                      IsChecked="{Binding Consent, Mode=TwoWay}"
-                      Margin="0,4,0,12" />
-
-            <Grid Grid.Row="14" Grid.ColumnSpan="2" ColumnDefinitions="Auto,12,*,Auto">
-                <Button Grid.Column="0"
-                    Content="{Binding SubmitLabel}"
-                        Command="{Binding SubmitCommand}"
-                        IsEnabled="{Binding IsSupported}" />
-                <TextBox Grid.Column="2"
-                         Text="{Binding StatusMessage}"
-                         IsReadOnly="True"
-                         AcceptsReturn="True"
-                         TextWrapping="Wrap"
-                         BorderThickness="0"
-                         BorderBrush="Transparent"
-                         Padding="0"
-                         Background="Transparent"
-                         VerticalAlignment="Center" />
-                <ProgressBar Grid.Column="3"
-                             Width="120"
-                             IsIndeterminate="True"
-                             IsVisible="{Binding IsBusy}" />
-            </Grid>
-        </Grid>
-    </ScrollViewer>
-</ContentPage>

src/PostIt/PostIt/Views/CommandFormsPage.axaml

@@ -20,7 +20,7 @@
                  ItemsSource="{Binding Forms}"
                  SelectedItem="{Binding SelectedForm, Mode=TwoWay}">
             <ListBox.ItemTemplate>
-                <DataTemplate x:DataType="wf:CommandFormSummaryDto">
+                <DataTemplate x:DataType="wf:CommandFormSummary">
                     <StackPanel Spacing="2" Margin="0,0,0,10">
                         <TextBlock Text="{Binding Title}" FontWeight="Bold" />
                         <TextBlock Text="{Binding ActionName, StringFormat='Route billing : /billing/{0}'}"
@@ -53,4 +53,4 @@
                      VerticalAlignment="Center" />
         </Grid>
     </Grid>
-</ContentPage>
+</ContentPage>

src/PostIt/PostIt/Views/Commands/BrushPage.axaml

@@ -0,0 +1,142 @@
+<ContentPage xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:cvm="using:PostIt.ViewModels.Commands"
+             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+             x:Class="PostIt.Views.Commands.BrushPage"
+
+             x:DataType="cvm:BrushViewModel"
+             Header="Commande billing">
+  <ScrollViewer>
+    <Grid RowDefinitions="Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto" ColumnDefinitions="Auto,*" Margin="12">
+      <TextBlock Grid.Row="0" Grid.ColumnSpan="2"
+                 Text="{Binding Title}"
+                 FontSize="18"
+                 FontWeight="Bold" />
+
+      <TextBlock Grid.Row="1" Grid.ColumnSpan="2"
+                 Margin="0,4,0,12"
+                 Text="{Binding SupportMessage}"
+                 TextWrapping="Wrap"
+                 Opacity="0.8" />
+
+      <TextBlock Grid.Row="2" Text="Utilisateur" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="2" Grid.Column="1" Text="{Binding PerformerLabel}" IsReadOnly="True" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="3" Text="Activité" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="3" Grid.Column="1" Text="{Binding ActivityLabel}" IsReadOnly="True" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="4" Text="Date" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <DatePicker Grid.Row="4" Grid.Column="1" DayFormat="ddd dd" SelectedDate="{Binding EventDate, Mode=TwoWay}" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="5"
+                 Text="Motif"
+                 VerticalAlignment="Center"
+                 Margin="0,0,12,8"
+                 IsVisible="{Binding ShowsReason}" />
+      <TextBox Grid.Row="5"
+               Grid.Column="1"
+               Text="{Binding Reason, Mode=TwoWay}"
+               Margin="0,0,0,8"
+               IsVisible="{Binding ShowsReason}" />
+
+      <TextBlock Grid.Row="6" Text="Adresse" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="6" Grid.Column="1" Text="{Binding Address, Mode=TwoWay}" Margin="0,0,0,8" />
+
+      <Button Grid.Row="7"
+              Grid.ColumnSpan="2"
+              HorizontalAlignment="Left"
+              Margin="0,0,0,8"
+              Content="Utiliser ma position"
+              Command="{Binding UseCurrentLocationCommand}" />
+
+      <TextBlock Grid.Row="8" Text="Latitude" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="8" Grid.Column="1" Text="{Binding Latitude, Mode=TwoWay}" PlaceholderText="Optionnel" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="9" Text="Longitude" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="9" Grid.Column="1" Text="{Binding Longitude, Mode=TwoWay}" PlaceholderText="Optionnel" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="10"
+                 Text="Prestation"
+                 VerticalAlignment="Center"
+                 Margin="0,0,12,8"
+                 IsVisible="{Binding ShowsSinglePrestation}" />
+      <ComboBox Grid.Row="10"
+                Grid.Column="1"
+                ItemsSource="{Binding AvailablePrestations}"
+                SelectedItem="{Binding SelectedPrestation, Mode=TwoWay}"
+                Margin="0,0,0,8"
+                IsVisible="{Binding ShowsSinglePrestation}">
+        <ComboBox.ItemTemplate>
+          <DataTemplate>
+            <StackPanel Spacing="2">
+              <TextBlock Text="{Binding Title}" FontWeight="Bold" />
+              <TextBlock Text="{Binding Details}" FontSize="11" Opacity="0.7" TextWrapping="Wrap" />
+            </StackPanel>
+          </DataTemplate>
+        </ComboBox.ItemTemplate>
+      </ComboBox>
+
+      <TextBlock Grid.Row="11"
+                 Text="Prestations"
+                 VerticalAlignment="Top"
+                 Margin="0,0,12,8"
+                 IsVisible="{Binding ShowsMultiplePrestations}" />
+      <ListBox Grid.Row="11"
+               Grid.Column="1"
+               ItemsSource="{Binding MultiPrestations}"
+               IsVisible="{Binding ShowsMultiplePrestations}"
+               MaxHeight="180"
+               Margin="0,0,0,8">
+        <ListBox.ItemTemplate>
+          <DataTemplate>
+            <CheckBox IsChecked="{Binding IsSelected, Mode=TwoWay}" Margin="0,0,0,8">
+              <StackPanel Spacing="2">
+                <TextBlock Text="{Binding Title}" FontWeight="Bold" />
+                <TextBlock Text="{Binding Details}" FontSize="11" Opacity="0.7" TextWrapping="Wrap" />
+              </StackPanel>
+            </CheckBox>
+          </DataTemplate>
+        </ListBox.ItemTemplate>
+      </ListBox>
+
+      <TextBlock Grid.Row="12"
+                 Text="Informations"
+                 VerticalAlignment="Center"
+                 Margin="0,0,12,8"
+                 IsVisible="{Binding ShowsAdditionalInfo}" />
+      <TextBox Grid.Row="12"
+               Grid.Column="1"
+               Text="{Binding AdditionalInfo, Mode=TwoWay}"
+               Margin="0,0,0,8"
+               IsVisible="{Binding ShowsAdditionalInfo}" />
+
+      <CheckBox Grid.Row="13" Grid.ColumnSpan="2"
+                Content="Je consens à la création de cette commande"
+                IsChecked="{Binding Consent, Mode=TwoWay}"
+                Margin="0,4,0,12" />
+
+      <Grid Grid.Row="14" Grid.ColumnSpan="2" ColumnDefinitions="Auto,12,*,Auto">
+        <Button Grid.Column="0"
+                Content="{Binding SubmitLabel}"
+                Command="{Binding SubmitCommand}"
+                IsEnabled="{Binding IsSupported}" />
+        <TextBox Grid.Column="2"
+                 Text="{Binding StatusMessage}"
+                 IsReadOnly="True"
+                 AcceptsReturn="True"
+                 TextWrapping="Wrap"
+                 BorderThickness="0"
+                 BorderBrush="Transparent"
+                 Padding="0"
+                 Background="Transparent"
+                 VerticalAlignment="Center" />
+        <ProgressBar Grid.Column="3"
+                     Width="120"
+                     IsIndeterminate="True"
+                     IsVisible="{Binding IsBusy}" />
+      </Grid>
+    </Grid>
+  </ScrollViewer>
+</ContentPage>

src/PostIt/PostIt/Views/Commands/BrushPage.axaml.cs

@@ -0,0 +1,13 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace PostIt.Views.Commands;
+
+public partial class BrushPage : ContentPage
+{
+    public BrushPage()
+    {
+        InitializeComponent();
+    }
+}

src/PostIt/PostIt/Views/Commands/RdvPage.axaml

@@ -0,0 +1,95 @@
+<ContentPage xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:cvm="using:PostIt.ViewModels.Commands"
+             x:Class="PostIt.Views.Commands.RdvPage"
+             x:DataType="cvm:RdvViewModel"
+             Header="Commande billing">
+  <ScrollViewer>
+    <Grid RowDefinitions="Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto,Auto" ColumnDefinitions="Auto,*" Margin="12">
+      <TextBlock Grid.Row="0" Grid.ColumnSpan="2"
+                 Text="{Binding Title}"
+                 FontSize="18"
+                 FontWeight="Bold" />
+
+      <TextBlock Grid.Row="1" Grid.ColumnSpan="2"
+                 Margin="0,4,0,12"
+                 Text="{Binding SupportMessage}"
+                 TextWrapping="Wrap"
+                 Opacity="0.8" />
+
+      <TextBlock Grid.Row="2" Text="Utilisateur" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="2" Grid.Column="1" Text="{Binding PerformerLabel}" IsReadOnly="True" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="3" Text="Activité" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="3" Grid.Column="1" Text="{Binding ActivityLabel}" IsReadOnly="True" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="4" Text="Date" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <DatePicker Grid.Row="4" Grid.Column="1" DayFormat="ddd dd" SelectedDate="{Binding EventDate, Mode=TwoWay}" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="5"
+                 Text="Motif"
+                 VerticalAlignment="Center"
+                 Margin="0,0,12,8"
+                 IsVisible="{Binding ShowsReason}" />
+      <TextBox Grid.Row="5"
+               Grid.Column="1"
+               Text="{Binding Reason, Mode=TwoWay}"
+               Margin="0,0,0,8"
+               IsVisible="{Binding ShowsReason}" />
+
+      <TextBlock Grid.Row="6" Text="Adresse" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="6" Grid.Column="1" Text="{Binding Address, Mode=TwoWay}" Margin="0,0,0,8" />
+
+      <Button Grid.Row="7"
+              Grid.ColumnSpan="2"
+              HorizontalAlignment="Left"
+              Margin="0,0,0,8"
+              Content="Utiliser ma position"
+              Command="{Binding UseCurrentLocationCommand}" />
+
+      <TextBlock Grid.Row="8" Text="Latitude" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="8" Grid.Column="1" Text="{Binding Latitude, Mode=TwoWay}" PlaceholderText="Optionnel" Margin="0,0,0,8" />
+
+      <TextBlock Grid.Row="9" Text="Longitude" VerticalAlignment="Center" Margin="0,0,12,8" />
+      <TextBox Grid.Row="9" Grid.Column="1" Text="{Binding Longitude, Mode=TwoWay}" PlaceholderText="Optionnel" Margin="0,0,0,8" />
+
+
+      <TextBlock Grid.Row="12"
+                 Text="Informations"
+                 VerticalAlignment="Center"
+                 Margin="0,0,12,8"
+                 IsVisible="{Binding ShowsAdditionalInfo}" />
+      <TextBox Grid.Row="12"
+               Grid.Column="1"
+               Text="{Binding AdditionalInfo, Mode=TwoWay}"
+               Margin="0,0,0,8"
+               IsVisible="{Binding ShowsAdditionalInfo}" />
+
+      <CheckBox Grid.Row="13" Grid.ColumnSpan="2"
+                Content="Je consens à la création de cette commande"
+                IsChecked="{Binding Consent, Mode=TwoWay}"
+                Margin="0,4,0,12" />
+
+      <Grid Grid.Row="14" Grid.ColumnSpan="2" ColumnDefinitions="Auto,12,*,Auto">
+        <Button Grid.Column="0"
+                Content="{Binding SubmitLabel}"
+                Command="{Binding SubmitCommand}"
+                IsEnabled="{Binding IsSupported}" />
+        <TextBox Grid.Column="2"
+                 Text="{Binding StatusMessage}"
+                 IsReadOnly="True"
+                 AcceptsReturn="True"
+                 TextWrapping="Wrap"
+                 BorderThickness="0"
+                 BorderBrush="Transparent"
+                 Padding="0"
+                 Background="Transparent"
+                 VerticalAlignment="Center" />
+        <ProgressBar Grid.Column="3"
+                     Width="120"
+                     IsIndeterminate="True"
+                     IsVisible="{Binding IsBusy}" />
+      </Grid>
+    </Grid>
+  </ScrollViewer>
+</ContentPage>

src/PostIt/PostIt/Views/Commands/RdvPage.axaml.cs

@@ -1,11 +1,11 @@
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
 
-namespace PostIt.Views;
+namespace PostIt.Views.Commands;
 
-public partial class BillingCommandPage : ContentPage
+public partial class RdvPage : ContentPage
 {
-    public BillingCommandPage()
+    public RdvPage()
     {
         InitializeComponent();
     }
@@ -14,4 +14,4 @@ public partial class BillingCommandPage : ContentPage
     {
         AvaloniaXamlLoader.Load(this);
     }
-}
+}