refactoring the command

doc/agent-playbook.md

@@ -0,0 +1,101 @@
+# Playbook d'usage des agents IA (Yavsc)
+
+Ce playbook normalise l'usage de Copilot, Plan et Explore dans le depot.
+Il privilegie des sorties verifiables: fichiers, commandes tests, risques.
+
+## Quand utiliser quel agent
+
+- Plan: quand la tache est ambigue, transverse ou risquee.
+- Explore: quand il faut cartographier rapidement des zones du code.
+- Copilot: quand les specifications sont claires et localisees.
+
+## Prompt type (base)
+
+Utiliser ce squelette avant toute tache non triviale:
+
+```text
+Contexte: <projet/fichier/fonction>
+Objectif: <resultat observable>
+Contraintes: <style, archi, perimetre>
+Verification: <tests exacts a lancer>
+Sortie attendue: <fichiers modifies + risques>
+```
+
+## 4 scenarios de reference
+
+## 1) Explorer un bounded context
+
+Intention:
+- Comprendre ou implementer un changement dans un BC sans regression laterale.
+
+Prompt minimal:
+```text
+Explore le BC <nom> avec profondeur medium.
+Retour: composants touches, points d'entree, tests existants et risques.
+```
+
+Preuves attendues:
+- Carte des fichiers a modifier.
+- Test(s) smoke/mandatory proposes.
+
+## 2) Ajouter un smoke test
+
+Intention:
+- Couvrir rapidement un endpoint ou une route publique.
+
+Prompt minimal:
+```text
+Propose un smoke test pour <route/endpoint> dans le projet de test approprie.
+Respecte les conventions de doc/testing.md.
+```
+
+Preuves attendues:
+- Fichier test cree/modifie.
+- Commande precise pour executer le test cible.
+
+## 3) Corriger une regression backend API
+
+Intention:
+- Corriger un bug sans casser un flux voisin.
+
+Prompt minimal:
+```text
+Planifie puis implemente un fix de <symptome> dans <projet>.
+Ajoute/ajuste un test NonRegression rouge puis vert.
+```
+
+Preuves attendues:
+- Explication cause racine.
+- Test non-regression associe.
+- Commande d'execution et resultat attendu.
+
+## 4) Tracer un flux PostIt/OIDC
+
+Intention:
+- Localiser une cassure d'authentification entre client et serveur.
+
+Prompt minimal:
+```text
+Cartographie le flux OIDC PostIt: entrypoints, callback, stockage token,
+refresh. Donne points de rupture probables et tests/verification proposes.
+```
+
+Preuves attendues:
+- Liste ordonnee des etapes du flux.
+- Fichiers critiques.
+- Hypotheses testables.
+
+## Anti-patterns a eviter
+
+- Prompt sans objectif verifiable.
+- Demande trop large sans perimetre de fichiers.
+- Validation basee uniquement sur "ca semble correct".
+- Pas de lien entre changement et niveau de test.
+
+## Gate PR minimale (agent-assiste)
+
+Avant validation:
+- Impact architecture explicite.
+- Rationale de choix agent explicite.
+- Test(s) executes et justifies.
+- Risques residuels documentes.

doc/onboarding-agents.md

@@ -0,0 +1,73 @@
+# Onboarding guide: agents IA + architecture + tests
+
+Ce guide est optimise pour accelerer la prise en main des agents IA
+(Copilot, Plan, Explore) dans Yavsc, avec une verification rapide
+par les tests.
+
+## Resultat attendu
+
+A la fin du parcours, un contributeur doit pouvoir:
+- Identifier les projets impactes par une modification.
+- Choisir l'agent adapte a l'intention de travail.
+- Produire une proposition de changement verifiable par les tests.
+
+## Parcours en 3 modules
+
+## Module A - Comprendre le terrain (30-45 min)
+
+Objectif: acquerir une lecture fiable de l'architecture.
+
+1. Lire [README.md](../README.md) puis [Architecture.md](Architecture.md).
+2. Lire [architecture/decoupage-organisation.md](architecture/decoupage-organisation.md).
+3. Selon le domaine:
+   - Backend/API: [architecture/workflow-multi-parties.md](architecture/workflow-multi-parties.md)
+   - PostIt: [architecture/postit.md](architecture/postit.md) puis [architecture/postit-oidc.md](architecture/postit-oidc.md)
+
+Definition of done:
+- Expliquer en 5 phrases quelles couches sont touchees.
+- Citer le ou les points d'entree applicatifs a verifier.
+
+## Module B - Boucle tests rapide (20-30 min)
+
+Objectif: verifier rapidement sans lancer toute la suite.
+
+1. Lire [testing.md](testing.md).
+2. Lancer les smoke tests d'abord, puis mandatory selon le projet.
+3. N'elargir au test complet que si le scope depasse le BC touche.
+
+Definition of done:
+- Fournir la commande test executee.
+- Expliquer pourquoi ce niveau de test est suffisant.
+
+## Module C - Usage agentique en production (30-40 min)
+
+Objectif: utiliser les agents comme accelerateurs, pas comme boites noires.
+
+1. Plan: decomposer la tache en etapes verifiables.
+2. Explore: collecter le contexte code/doc precise.
+3. Copilot: implementer localement et verifier.
+
+Regles:
+- Toujours donner un contexte explicite (fichier, but, contrainte).
+- Demander des preuves observables (fichiers modifies, tests, risques).
+- Refuser toute sortie non verifiable.
+
+Definition of done:
+- Une tache simple est livree avec:
+  - Plan
+  - Changement local
+  - Preuve par test
+
+## Routine continue (sans echeance fixe)
+
+Rituels recommandes:
+- Hebdo: revue des prompts qui ont bien fonctionne.
+- Mensuel: mise a jour du present guide et du playbook.
+- A chaque incident: ajouter un anti-pattern dans le playbook.
+
+## Check-list de validation
+
+- Le changement indique son impact architecture.
+- Le choix de l'agent est justifie.
+- La preuve test est incluse.
+- Les risques residuels sont explicitement listes.

src/PostIt/PostIt.Tests/BillingCommandPageViewModelTests.cs

@@ -24,12 +24,12 @@ public class BillingCommandPageViewModelTests
             new ActivityUserDisplayItem { PerformerId = "perf-1", UserName = "Alice" },
             client) as RdvViewModel;
 
-            vm.EventDate = DateTime.Parse("2026-09-02 14:30");
-        vm.Reason = "Point de cadrage";
-        vm.Address = "1 rue du Test";
-        vm.Latitude = 48.8566;
-        vm.Longitude = 2.3522;
-        vm.Consent = true;
+            vm!.EventDate = DateTime.Parse("2026-09-02 14:30");
+        vm!.Reason = "Point de cadrage";
+        vm!.Address = "1 rue du Test";
+        vm!.Latitude = 48.8566;
+        vm!.Longitude = 2.3522;
+        vm!.Consent = true;
 
         await vm.SubmitCommand.ExecuteAsync(null);
 
@@ -56,10 +56,7 @@ public class BillingCommandPageViewModelTests
             new ActivityUserDisplayItem { PerformerId = "perf-2", UserName = "Bob" },
             client);
 
-        await vm.SubmitCommand.ExecuteAsync(null);
-
-        Assert.Null(api.LastPath);
-        Assert.Contains("n'est pas encore pris en charge", vm.StatusMessage, StringComparison.OrdinalIgnoreCase);
+        Assert.Null(vm);
     }
 
     [Fact]
@@ -74,12 +71,12 @@ public class BillingCommandPageViewModelTests
             new ActivityInfo { Code = "dev", Name = "Développement" },
             new ActivityUserDisplayItem { PerformerId = "perf-1", UserName = "Alice" },
             client) as RdvViewModel;
-        vm.EventDate = DateTime.Parse("2026-09-02 14:30");
-        vm.Reason = "Point de cadrage";
-        vm.Address = "1 rue du Test";
-        vm.Latitude = 0;
-        vm.Longitude = 0;
-        vm.Consent = true;
+        vm!.EventDate = DateTime.Parse("2026-09-02 14:30");
+        vm!.Reason = "Point de cadrage";
+        vm!.Address = "1 rue du Test";
+        vm!.Latitude = null;
+        vm!.Longitude = null;
+        vm!.Consent = true;
 
         await vm.SubmitCommand.ExecuteAsync(null);
 
@@ -107,10 +104,10 @@ public class BillingCommandPageViewModelTests
                 new ActivityUserDisplayItem { PerformerId = "perf-1", UserName = "Alice" },
                 client) as RdvViewModel;
 
-            await vm.UseCurrentLocationCommand.ExecuteAsync(null);
+            await vm!.UseCurrentLocationCommand.ExecuteAsync(null);
 
-            Assert.Equal(48.8566, vm.Latitude);
-            Assert.Equal(2.3522, vm.Longitude);
+            Assert.Equal(48.8566, vm!.Latitude);
+            Assert.Equal(2.3522, vm!.Longitude);
         }
         finally
         {
@@ -136,12 +133,12 @@ public class BillingCommandPageViewModelTests
             new ActivityInfo { Code = "brush", Name = "Brush" },
             new ActivityUserDisplayItem { PerformerId = "perf-2", UserName = "Bob" },
             client) as BrushViewModel;
-        vm.EventDate = DateTime.Parse("2026-09-02 14:30");
-        vm.Address = "1 rue du Test";
-        vm.Latitude = 48.8566;
-        vm.Longitude = 2.3522;
-        vm.Consent = true;
-        vm.AdditionalInfo = "Prévoir shampoing";
+        vm!.EventDate = DateTime.Parse("2026-09-02 14:30");
+        vm!.Address = "1 rue du Test";
+        vm!.Latitude = 48.8566;
+        vm!.Longitude = 2.3522;
+        vm!.Consent = true;
+        vm!.AdditionalInfo = "Prévoir shampoing";
 
         await vm.InitializeAsync();
         vm.SelectedPrestation = vm.AvailablePrestations[1];
@@ -170,17 +167,17 @@ public class BillingCommandPageViewModelTests
         .CreateCommandPageViewModel(
             new ActivityInfo { Code = "mbrush", Name = "MBrush" },
             new ActivityUserDisplayItem { PerformerId = "perf-3", UserName = "Cara" },
-            client) as PostIt.ViewModels.Commands.BrushViewModel;
-        vm.EventDate = DateTime.Parse("2026-09-03 10:00");
-        vm.Address = "2 rue du Test";
-        vm.Latitude = 48.8567;
-        vm.Longitude = 2.3523;
-        vm.Consent = true;
+            client) as MBrushViewModel;
+        vm!.EventDate = DateTime.Parse("2026-09-03 10:00");
+        vm!.Address = "2 rue du Test";
+        vm!.Latitude = 48.8567;
+        vm!.Longitude = 2.3523;
+        vm!.Consent = true;
 
         await vm.InitializeAsync();
-        vm.MultiPrestations[0].IsSelected = true;
-        vm.MultiPrestations[1].IsSelected = true;
-        await vm.SubmitCommand.ExecuteAsync(null);
+        vm!.MultiPrestations[0].IsSelected = true;
+        vm!.MultiPrestations[1].IsSelected = true;
+        await vm!.SubmitCommand.ExecuteAsync(null);
 
         Assert.Equal("https://business.example/api/v1/billing/MBrush", api.LastPath);
         using var json = JsonDocument.Parse(JsonSerializer.Serialize(api.LastBody));
@@ -208,7 +205,7 @@ public class BillingCommandPageViewModelTests
             new ActivityInfo { Code = "brush", Name = "Brush" },
             new ActivityUserDisplayItem { PerformerId = "perf-2", UserName = "Bob" },
             client) as BrushViewModel;
-        await vm.InitializeAsync(new BillingQueryDetailsDto
+        await vm!.InitializeAsync(new BillingQueryDetailsDto
         {
             Id = 77,
             BillingCode = "Brush",
@@ -228,9 +225,9 @@ public class BillingCommandPageViewModelTests
             }
         });
 
-        vm.SelectedPrestation = vm.AvailablePrestations[1];
-        vm.AdditionalInfo = "Note mise à jour";
-        await vm.SubmitCommand.ExecuteAsync(null);
+        vm!.SelectedPrestation = vm!.AvailablePrestations[1];
+        vm!.AdditionalInfo = "Note mise à jour";
+        await vm!.SubmitCommand.ExecuteAsync(null);
 
         Assert.Equal(HttpMethod.Put, api.LastMethod);
         Assert.Equal("https://business.example/api/v1/billing/Brush/77", api.LastPath);

src/PostIt/PostIt/Helpers/FormHelpers.cs

@@ -7,7 +7,7 @@ namespace PostIt.Helpers;
 
 public static class FormHelpers
 {
-    public static BillingCommandPageViewModel
+    public static BillingCommandPageViewModel?
     CreateCommandPageViewModel(
         this CommandFormSummary form,
         ActivityInfo activity,
@@ -15,25 +15,30 @@ public static class FormHelpers
         BillingApiClient billingClient)
     {
 
-        string formVMName = form.ActionName + "ViewModel";
+        string namespacePrefix = typeof(PostIt.ViewModels.Commands.RdvViewModel).Namespace + ".";
 
-        string formOnActivityVMName = activity.Code + formVMName;
+        string formVMName =   form.ActionName + "ViewModel";
 
-        var vmType = Type.GetType(formOnActivityVMName);
+        string formOnActivityVMName =  activity.Code + formVMName + "ViewModel";
+
+        var vmType = Type.GetType(namespacePrefix +formOnActivityVMName);
         if (vmType == null)
         {
-            vmType = Type.GetType(formVMName);
+            vmType = Type.GetType(namespacePrefix + formVMName);
         }
         if (vmType == null)
         {
-            throw new InvalidOperationException($"Cannot find type '{formOnActivityVMName}' or '{formVMName}'");
+            Console.Error.WriteLine(
+                $"! Cannot find type '{formOnActivityVMName}' or '{formVMName}'");
+            return null;
         }
         if (!typeof(BillingCommandPageViewModel).IsAssignableFrom(vmType))
         {
-            throw new InvalidOperationException($"The type '{formOnActivityVMName}' or '{formVMName}' is not a BillingCommandPageViewModel");
+            Console.Error.WriteLine($"! The type '{formOnActivityVMName}' or '{formVMName}' is not a BillingCommandPageViewModel");
+            return null;
         }
 
-        var vm = Activator.CreateInstance(vmType);
+        var vm = Activator.CreateInstance(vmType, activity, performer, form, billingClient);
 
         if (vm == null)
         {

src/PostIt/PostIt/ViewLocator.cs

@@ -43,6 +43,7 @@ public class ViewLocator : IDataTemplate
             HomePageViewModel => services.GetRequiredService<HomePage>(),
             ActivitiesPageViewModel => services.GetRequiredService<ActivitiesPage>(),
             CommandFormsPageViewModel => services.GetRequiredService<CommandFormsPage>(),
+            BrushViewModel => services.GetRequiredService<BrushPage>(),
             RdvViewModel => services.GetRequiredService<RdvPage>(),
             SignaturePageViewModel => services.GetRequiredService<SignaturePage>(),
             AddCircleMemberDialogViewModel => services.GetRequiredService<AddCircleMemberDialog>(),

src/PostIt/PostIt/ViewModels/BillingQueriesPageViewModel.cs

@@ -134,7 +134,7 @@ public partial class BillingQueriesPageViewModel : ViewModelBase
         {
             var details = await _billingClient.GetQueryAsync(Form.ActionName, SelectedQuery.Id).ConfigureAwait(true);
             var vm = Form.CreateCommandPageViewModel(Activity, Performer, _billingClient);
-            await vm.InitializeAsync(details).ConfigureAwait(true);
+            await vm!.InitializeAsync(details).ConfigureAwait(true);
             await app.PushPageAsync(vm).ConfigureAwait(true);
         }
         catch (HttpRequestException ex) when (ex.StatusCode is HttpStatusCode.Unauthorized or HttpStatusCode.Forbidden)

src/PostIt/PostIt/ViewModels/CommandFormsPageViewModel.cs

@@ -83,7 +83,7 @@ public partial class CommandFormsPageViewModel : ViewModelBase
 
         var vm =  SelectedForm.CreateCommandPageViewModel(
             Activity, Performer, _billingClient);
-        await vm.InitializeAsync();
+        await vm!.InitializeAsync();
         await app.PushPageAsync(vm);
     }
 

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

@@ -9,7 +9,7 @@ using Yavsc.Models.Billing;
 
 namespace PostIt.ViewModels;
 
-public abstract partial class BillingCommandPageViewModel : ViewModelBase
+public abstract partial class BillingCommandPageViewModel : RemoteViewModelBase
 {
     protected readonly BillingApiClient _billingClient;
 
@@ -46,24 +46,11 @@ public abstract partial class BillingCommandPageViewModel : ViewModelBase
     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 virtual bool IsSupported => true;
     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 virtual string SupportMessage => $"Le formulaire {Form.ActionName} n'est pas encore pris en charge dans PostIt.";
 
     public override bool CanNavigateNext
     {
@@ -104,7 +91,7 @@ public abstract partial class BillingCommandPageViewModel : ViewModelBase
 
     public async Task InitializeAsync(BillingQueryDetailsDto? existingQuery = null)
     {
-
+        await LoadAsync();
         if (existingQuery is not null)
         {
             ApplyExistingQuery(existingQuery);

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

@@ -12,6 +12,7 @@ using Yavsc.Models.Haircut;
 namespace PostIt.ViewModels.Commands;
 public partial class BrushViewModel : RdvViewModel
 {
+    public override string SupportMessage => "Choisissez une prestation coiffure puis postez la commande.";
 
     [ObservableProperty]
     public partial ObservableCollection<HairPrestationDto> AvailablePrestations { get; set; } = new();
@@ -19,42 +20,42 @@ public partial class BrushViewModel : RdvViewModel
     [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)
+    public override async Task LoadAsync()
     {
-           if (IsBrush && existingQuery.PrestationId is not null)
+        var prestations = await _billingClient.GetHairPrestationsAsync(Form.ActionName);
+
+        AvailablePrestations = new ObservableCollection<HairPrestationDto>
+            (prestations ?? new List<HairPrestationDto>());
+
+        if (SelectedPrestation is null)
         {
-            SelectedPrestation = AvailablePrestations.FirstOrDefault(x => x.Id == existingQuery.PrestationId.Value);
+            SelectedPrestation = AvailablePrestations.FirstOrDefault();
         }
 
-        if (IsMultiBrush)
+    }
+
+    protected override void ApplyExistingQuery(BillingQueryDetailsDto existingQuery)
+    {
+        base.ApplyExistingQuery(existingQuery);
+
+        if (existingQuery.PrestationId is not null)
         {
-            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);
-            }
+            SelectedPrestation = AvailablePrestations.FirstOrDefault(x => x.Id == existingQuery.PrestationId.Value);
         }
 
         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));
+            if (SelectedPrestation is null)
+            {
+                SelectedPrestation = AvailablePrestations.FirstOrDefault();
+            }
 
             StatusMessage = AvailablePrestations.Count == 0
                 ? "Aucune prestation coiffure disponible."
@@ -77,8 +78,23 @@ public partial class BrushViewModel : RdvViewModel
 
     protected override async Task SubmitAsync()
     {
+        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 (SelectedPrestation is null)
+        {
+            StatusMessage = "Sélectionnez une prestation coiffure.";
+            return;
+        }
 
         IsBusy = true;
         try
@@ -105,64 +121,30 @@ public partial class BrushViewModel : RdvViewModel
                 }
             };
 
-        if (IsBrush)
+            payload.PrestationId = SelectedPrestation.Id;
+
+            if (IsEditingExisting)
             {
-                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);
-                }
+                await _billingClient.UpdateAsync(Form.ActionName, ExistingQueryId!.Value, payload).ConfigureAwait(true);
             }
-            else if (IsMultiBrush)
+            else
             {
-                var selectedPrestations = MultiPrestations.Where(x => x.IsSelected).ToList();
-                if (selectedPrestations.Count == 0)
+                await _billingClient.CreateAsync(Form.ActionName, new
                 {
-                    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);
-                }
+                    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);
             }
+
+            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)

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

@@ -1,16 +0,0 @@
-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/MBrushViewModel.cs

@@ -0,0 +1,130 @@
+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.Billing;
+
+namespace PostIt.ViewModels.Commands;
+
+public partial class MBrushViewModel : BrushViewModel
+{
+    public override string SupportMessage => "Choisissez une ou plusieurs prestations coiffure puis postez la commande.";
+
+    [ObservableProperty]
+    public partial ObservableCollection<SelectableHairPrestationItem> MultiPrestations { get; set; } = new();
+
+    public MBrushViewModel(ActivityInfo activity, ActivityUserDisplayItem performer, CommandFormSummary form, BillingApiClient billingClient)
+        : base(activity, performer, form, billingClient)
+    {
+    }
+
+    public override async Task LoadAsync()
+    {
+        await base.LoadAsync().ConfigureAwait(true);
+        MultiPrestations = new ObservableCollection<SelectableHairPrestationItem>(
+            AvailablePrestations.Select(SelectableHairPrestationItem.FromDto));
+    }
+
+    protected override void ApplyExistingQuery(BillingQueryDetailsDto existingQuery)
+    {
+        base.ApplyExistingQuery(existingQuery);
+
+        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);
+        }
+    }
+
+    protected override async Task SubmitAsync()
+    {
+        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;
+        }
+
+        var selectedPrestations = MultiPrestations.Where(x => x.IsSelected).ToList();
+        if (selectedPrestations.Count == 0)
+        {
+            StatusMessage = "Sélectionnez au moins une prestation coiffure.";
+            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(),
+                Location = new BillingLocationDto
+                {
+                    Address = address,
+                    Latitude = Latitude,
+                    Longitude = Longitude,
+                },
+                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 de la commande: {ex.Message}";
+        }
+        finally
+        {
+            IsBusy = false;
+        }
+    }
+}

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

@@ -12,14 +12,16 @@ namespace PostIt.ViewModels.Commands;
 
 public partial class RdvViewModel : BillingCommandPageViewModel
 {
+    public override string SupportMessage => "Complétez les informations du rendez-vous puis postez la commande.";
+
     [ObservableProperty]
     public partial string Address { get; set; } = string.Empty;
 
     [ObservableProperty]
-    public partial double Latitude { get; set; }
+    public partial double? Latitude { get; set; }
 
     [ObservableProperty]
-    public partial double Longitude { get; set; }
+    public partial double? Longitude { get; set; }
 
 
     [ObservableProperty]
@@ -48,12 +50,10 @@ public partial class RdvViewModel : BillingCommandPageViewModel
         if (existingQuery.Location is not null)
         {
             Address = existingQuery.Location.Address ?? string.Empty;
-            Latitude = existingQuery.Location.Latitude ?? 0;
-            Longitude = existingQuery.Location.Longitude ?? 0;
+            Latitude = existingQuery.Location.Latitude;
+            Longitude = existingQuery.Location.Longitude;
         }
 
-
-
         StatusMessage = $"Commande #{existingQuery.Id} chargée.";
     }
 
@@ -135,7 +135,7 @@ public partial class RdvViewModel : BillingCommandPageViewModel
         }
 
 
-        if (IsRdv && string.IsNullOrWhiteSpace(Reason))
+        if (string.IsNullOrWhiteSpace(Reason))
         {
             StatusMessage = "Le motif du rendez-vous est requis.";
             return;
@@ -168,27 +168,23 @@ public partial class RdvViewModel : BillingCommandPageViewModel
                 }
             };
 
-            if (IsRdv)
+            if (IsEditingExisting)
             {
-                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);
-                }
+                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);
+            }
 
             StatusMessage = IsEditingExisting
                 ? $"Commande #{ExistingQueryId} mise à jour sur {BillingRoute} pour {Performer.UserName}."
@@ -207,4 +203,9 @@ public partial class RdvViewModel : BillingCommandPageViewModel
             IsBusy = false;
         }
     }
+
+    public override Task LoadAsync()
+    {
+        return Task.CompletedTask;
+    }
 }

src/PostIt/PostIt/ViewModels/RemoteViewModelBase.cs

@@ -0,0 +1,10 @@
+using System.Threading.Tasks;
+
+namespace PostIt.ViewModels;
+
+public abstract class RemoteViewModelBase : ViewModelBase
+{
+     public abstract Task LoadAsync();
+
+
+}

src/PostIt/PostIt/ViewModels/ViewModelBase.cs

@@ -1,4 +1,4 @@
-using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.ComponentModel;
 
 namespace PostIt.ViewModels;
 

src/Yavsc.Server/Models/Messaging/EstimationEvent.cs

@@ -13,15 +13,15 @@ namespace Yavsc.Models.Messaging
         {
             Topic = "Estimation";
             Estimation = estimate;
-            perfer = estimate.Owner;
+            performer = estimate.Owner;
 
             ProviderInfo = new ProviderClientInfo {
-                Rate = perfer.Rate,
-                UserName = perfer.Performer.UserName,
-                Avatar = perfer.Performer.Avatar,
-                UserId = perfer.PerformerId
+                Rate = performer.Rate,
+                UserName = performer.Performer.UserName,
+                Avatar = performer.Performer.Avatar,
+                UserId = performer.PerformerId
             };
-           Sender = perfer.Performer.UserName;
+           Sender = performer.Performer.UserName;
             _localizer = SR;
         }
 
@@ -31,7 +31,7 @@ namespace Yavsc.Models.Messaging
         ProviderClientInfo ProviderInfo { get; set; }
         Estimate Estimation { get; set; }
 
-        private readonly PerformerProfile perfer;
+        private readonly PerformerProfile performer;
 
         public string Topic
         {
@@ -47,7 +47,7 @@ namespace Yavsc.Models.Messaging
 
         public string CreateBody()
         {
-            return string.Format(_localizer["EstimationMessageToClient"], perfer.Performer.UserName, this.Estimation.Bill.Addition());
+            return string.Format(_localizer["EstimationMessageToClient"], performer.Performer.UserName, this.Estimation.Bill.Addition());
         }
     }
 }