Add edit functionality for EinAb interactions: implement UpdateInteraction method, extend InteractionDialog for edit mode, and add edit button in InteractionRow

.cursor/plans/einab_interaction_edit_79be74e0.plan.md

@@ -0,0 +1,155 @@
+---
+name: EinAb Interaction Edit
+overview: Add edit mode for EinAb (Einführung) interactions by extending the existing InteractionDialog with an update path, a new ProspectService.UpdateInteraction method, and an edit button in InteractionRow — scoped to EinAb initially but designed for future interaction types.
+todos:
+  - id: service-update
+    content: Add ProspectService.UpdateInteraction + AuditType.EditInteraction + AuditHelper case
+    status: completed
+  - id: dialog-edit-mode
+    content: Extend InteractionDialog with IsEditMode, IsEditable helper, and unified SaveAsync
+    status: completed
+  - id: row-edit-button
+    content: Add AllowEdit/EditClick to InteractionRow with pencil icon in item list
+    status: completed
+  - id: container-wire
+    content: Add EditInteraction handler in ProspectContainer and enable AllowEdit on EinAb row
+    status: completed
+isProject: false
+---
+
+# EinAb Interaction Edit Mode
+
+## Current State
+
+EinAb interactions ("Einführung") are multi-entry (minimum 3) and support date, business/person fields (`Info1`/`Info2`), and feedback (thumbs up/down/neutral). Users can **add** via [`InteractionDialog`](FoodsharingSiegen.Server/Dialogs/InteractionDialog.razor) and **remove** via the X icon in [`InteractionRow`](FoodsharingSiegen.Server/Controls/InteractionRow.razor). There is no update path at any layer.
+
+```mermaid
+flowchart LR
+    subgraph current [Current Flow]
+        AddBtn["+ Button"] --> Dialog["InteractionDialog"]
+        Dialog --> AddSvc["ProspectService.AddInteraction"]
+        XBtn["X Button"] --> Confirm["ConfirmDialog"]
+        Confirm --> RemoveSvc["ProspectService.RemoveInteraction"]
+    end
+```
+
+## Target Flow
+
+```mermaid
+flowchart LR
+    subgraph target [New Edit Flow]
+        EditBtn["Pencil Button"] --> EditDialog["InteractionDialog (edit mode)"]
+        EditDialog --> UpdateSvc["ProspectService.UpdateInteraction"]
+    end
+    AddBtn["+ Button"] --> AddDialog["InteractionDialog (add mode)"]
+    AddDialog --> AddSvc["ProspectService.AddInteraction"]
+    XBtn["X Button"] --> RemoveSvc["ProspectService.RemoveInteraction"]
+```
+
+Edit and remove will coexist. Only EinAb gets the edit button initially.
+
+---
+
+## 1. Service Layer — `UpdateInteraction`
+
+**File:** [`FoodsharingSiegen.Server/Data/Service/ProspectService.cs`](FoodsharingSiegen.Server/Data/Service/ProspectService.cs)
+
+Add `UpdateInteraction(Interaction interaction)` following the existing `UpdateAsync(Prospect)` pattern:
+
+- Load tracked entity by `interaction.Id`; return error if not found
+- Update editable fields only: `Date`, `Info1`, `Info2`, `Feedback`, `FeedbackInfo`, `Alert`
+- Do **not** change: `Id`, `Created`, `UserID` (preserves original creator), `Type`, `ProspectID`, `NotNeeded`
+- Set parent `Prospect.Modified = DateTime.UtcNow`
+- Audit via new `AuditType.EditInteraction` (prospect name + interaction type as data)
+- Detach entities after save (consistent with `AddInteraction`)
+
+---
+
+## 2. Audit Support
+
+**Files:**
+- [`FoodsharingSiegen.Contracts/Enums/AuditType.cs`](FoodsharingSiegen.Contracts/Enums/AuditType.cs) — add `EditInteraction = 160`
+- [`FoodsharingSiegen.Server/Data/AuditHelper.cs`](FoodsharingSiegen.Server/Data/AuditHelper.cs) — add case: `"hat eine Interaktion bei {Data1} bearbeitet: {Data2}"`
+
+---
+
+## 3. InteractionDialog — Add/Edit Mode
+
+**Files:** [`InteractionDialog.razor.cs`](FoodsharingSiegen.Server/Dialogs/InteractionDialog.razor.cs), [`InteractionDialog.razor`](FoodsharingSiegen.Server/Dialogs/InteractionDialog.razor)
+
+Follow the [`EditProspectDialog`](FoodsharingSiegen.Server/Dialogs/EditProspectDialog.razor.cs) pattern (`IsUpdateMode` + conditional save):
+
+- Add `IsEditMode` parameter and a static extensibility helper:
+
+```csharp
+public static bool IsEditable(InteractionType type) => type switch
+{
+    InteractionType.EinAb => true,
+    _ => false
+};
+```
+
+- Extend `InteractionDialogParameter` with optional `Interaction? ExistingInteraction = null`
+- In `ShowAsync`: when `ExistingInteraction` is provided, pass it as the bound `Interaction` and set `IsEditMode = true`; otherwise keep current "new interaction" behavior
+- Replace `AddInteractionAsync` with a unified `SaveAsync`:
+  - **Add mode:** `Interaction.UserID = CurrentUser.Id` → `ProspectService.AddInteraction`
+  - **Edit mode:** `ProspectService.UpdateInteraction`
+- In the razor template, change OK button label: `"OK"` (add) / `"Speichern"` (edit) — same fields render in both modes (date, Betrieb, Mit wem, feedback)
+
+**Header text** (in `ProspectContainer`): `"Einführung für {Name} bearbeiten"` for edit vs existing `"… eintragen"` for add.
+
+---
+
+## 4. InteractionRow — Edit Button
+
+**Files:** [`InteractionRow.razor`](FoodsharingSiegen.Server/Controls/InteractionRow.razor), [`InteractionRow.razor.cs`](FoodsharingSiegen.Server/Controls/InteractionRow.razor.cs)
+
+- Add parameters:
+  - `bool AllowEdit { get; set; }` — controls visibility
+  - `Func<Guid, Task>? EditClick { get; set; }` — callback with interaction Id
+- In the per-item loop (lines 46–66), show a pencil icon (`fa-solid fa-pen-to-square`) next to the existing X remove icon when `AllowEdit && AllowInteraction`
+- Same visibility guard as remove: hidden when prospect is complete (unless Complete-type interaction)
+
+---
+
+## 5. ProspectContainer — Wire Up Edit
+
+**Files:** [`ProspectContainer.razor`](FoodsharingSiegen.Server/Controls/ProspectContainer.razor), [`ProspectContainer.razor.cs`](FoodsharingSiegen.Server/Controls/ProspectContainer.razor.cs)
+
+- Add `EditInteraction(Guid interactionId)`:
+  - Look up interaction from `Prospect.Interactions`
+  - Guard: only proceed if `InteractionDialog.IsEditable(interaction.Type)`
+  - Open dialog with existing interaction and header `"Einführung für {Name} bearbeiten"`
+  - On success → `OnDataChanged()`
+- On the EinAb `InteractionRow`, add:
+  - `AllowEdit="true"`
+  - `EditClick="@EditInteraction"`
+
+Other interaction rows remain unchanged (no edit button).
+
+---
+
+## Extensibility Notes
+
+To enable edit for another type later:
+1. Add the type to `InteractionDialog.IsEditable()`
+2. Set `AllowEdit="true"` on that row in `ProspectContainer.razor`
+3. Ensure field labels in `ShowAsync`'s type switch cover that type (already done for several types)
+
+No separate edit dialog component is needed — the same form handles both modes.
+
+---
+
+## Files Changed (summary)
+
+| File | Change |
+|------|--------|
+| `ProspectService.cs` | New `UpdateInteraction` method |
+| `AuditType.cs` | New `EditInteraction` enum value |
+| `AuditHelper.cs` | New audit text case |
+| `InteractionDialog.razor.cs` | Edit mode, `IsEditable`, unified save |
+| `InteractionDialog.razor` | Conditional button label |
+| `InteractionRow.razor` / `.cs` | Edit button + parameters |
+| `ProspectContainer.razor` / `.cs` | `EditInteraction` handler, EinAb wiring |
+
+No database migration required — all editable fields already exist on the `Interaction` entity.

FoodsharingSiegen.Contracts/Enums/AuditType.cs

@@ -87,7 +87,12 @@ namespace FoodsharingSiegen.Contracts.Enums
         /// <summary>
         ///     The change own password audit type
         /// </summary>
-        ChangeOwnPassword = 150
+        ChangeOwnPassword = 150,
+
+        /// <summary>
+        ///     The edit interaction audit type
+        /// </summary>
+        EditInteraction = 160
 
         #endregion Prospects
     }

FoodsharingSiegen.Server/Controls/InteractionRow.razor

@@ -45,11 +45,29 @@ else
     
     @foreach (var interaction in Interactions)
     {
-        <div class="d-flex justify-content-end">
+        <div class="d-flex justify-content-end align-items-center interaction-row-action-group">
             @if ((Prospect is not { Complete: true } || interaction.Type == InteractionType.Complete) && AllowInteraction)
             {
-                <a style="display: inline-block;"" href=""><i class="fa-solid fa-square-xmark" @onclick="async () => { if (RemoveClick != null) await RemoveClick.Invoke(interaction.Id); }" @onclick:preventDefault></i></a>
+                <div class="d-flex align-items-center interaction-row-actions">
-            } else {
+                    @if (AllowEdit)
+                    {
+                        <Button Size="Size.Small"
+                                Class="interaction-row-action interaction-row-action-edit"
+                                title="Eintrag bearbeiten"
+                                Clicked="@(async () => { if (EditClick != null) await EditClick.Invoke(interaction.Id); })">
+                            <i class="fa-solid fa-pen-to-square"></i>
+                        </Button>
+                    }
+                    <Button Size="Size.Small"
+                            Class="interaction-row-action interaction-row-action-delete"
+                            title="Eintrag löschen"
+                            Clicked="@(async () => { if (RemoveClick != null) await RemoveClick.Invoke(interaction.Id); })">
+                        <i class="fa-solid fa-square-xmark"></i>
+                    </Button>
+                </div>
+            }
+            else
+            {
                 <span>&bull;</span>
             }
         </div>

FoodsharingSiegen.Server/Controls/InteractionRow.razor.cs

@@ -62,6 +62,18 @@ namespace FoodsharingSiegen.Server.Controls
         [Parameter]
         public Func<Guid, Task>? RemoveClick { get; set; }
 
+        /// <summary>
+        ///     Gets or sets whether editing existing interactions is allowed.
+        /// </summary>
+        [Parameter]
+        public bool AllowEdit { get; set; }
+
+        /// <summary>
+        ///     Gets or sets the callback invoked when an interaction is edited.
+        /// </summary>
+        [Parameter]
+        public Func<Guid, Task>? EditClick { get; set; }
+
         /// <summary>
         ///     Gets or sets the value of the type (ab)
         /// </summary>

FoodsharingSiegen.Server/Controls/InteractionRow.razor.css

@@ -1,4 +1,38 @@
-tr.done th {
+.interaction-row-action-group {
+    gap: 0.25rem;
+    min-width: 2.7rem;
+}
+
+.interaction-row-actions {
+    gap: 0.25rem;
+}
+
+.interaction-row-action {
+    width: 1rem;
+    min-width: 1.25rem;
+    height: 1.25rem;
+    min-height: 1.25rem;
+    padding: 0;
+    display: inline-flex !important;
+    align-items: center;
+    justify-content: center;
+    font-size: 0.7rem;
+    line-height: 1;
+}
+
+.interaction-row-action i {
+    font-size: 0.95rem;
+}
+
+.interaction-row-action-edit i {
+    color: #1f2f3a;
+}
+
+.interaction-row-action-delete i {
+    color: rgb(153, 0, 0);
+}
+
+tr.done th {
     color: #64ae24;
 }
 

FoodsharingSiegen.Server/Controls/ProspectContainer.razor

@@ -81,6 +81,8 @@
             AllowInteraction="@(StateFilter == ProspectStateFilter.OnBoarding && CurrentUser.IsInGroup(UserGroup.WelcomeTeam, UserGroup.Ambassador))"
             AddClick="AddInteraction"
             RemoveClick="@RemoveInteraction"
+            AllowEdit="true"
+            EditClick="@EditInteraction"
             Multiple="true"
             Minimum="3"
             ButtonIconClass="fa-solid fa-plus"

FoodsharingSiegen.Server/Controls/ProspectContainer.razor.cs

@@ -62,6 +62,24 @@ namespace FoodsharingSiegen.Server.Controls
 
         #endregion
 
+        #region Private Method EditInteraction
+
+        private async Task EditInteraction(Guid interactionId)
+        {
+            if (Prospect == null || OnDataChanged == null) return;
+
+            var interaction = Prospect.Interactions.FirstOrDefault(x => x.Id == interactionId);
+            if (interaction == null || !InteractionDialog.IsEditable(interaction.Type)) return;
+
+            var headerText = $"{interaction.Type.Translate(AppSettings)} für {Prospect.Name} bearbeiten";
+
+            Func<Task> onSuccess = async () => await OnDataChanged();
+
+            await InteractionDialog.ShowAsync(ModalService, new(interaction.Type, Prospect.Id, headerText, onSuccess, interaction));
+        }
+
+        #endregion
+
         #region Private Method DeleteProspectAsync
 
         /// <summary>

FoodsharingSiegen.Server/Data/AuditHelper.cs

@@ -37,6 +37,8 @@ namespace FoodsharingSiegen.Server.Data
                     return $"hat dem Neuling {audit.Data1} folgendes hinzugefügt: {audit.Data2}";
                 case AuditType.RemoveInteraction:
                     return $"hat eine Interaktion bei {audit.Data1} gelöscht.";
+                case AuditType.EditInteraction:
+                    return $"hat eine Interaktion bei {audit.Data1} bearbeitet: {audit.Data2}";
                 case AuditType.DeleteProspectImages:
                     return $"hat die Bilder von {audit.Data1} gelöscht.";
                 case AuditType.ViewProspectImages:

FoodsharingSiegen.Server/Data/Service/ProspectService.cs

@@ -174,6 +174,53 @@ namespace FoodsharingSiegen.Server.Data.Service
 
         #endregion
 
+        #region Public Method UpdateInteraction
+
+        /// <summary>
+        /// Updates an existing interaction with the specified values.
+        /// </summary>
+        /// <param name="interaction">The interaction with updated values.</param>
+        /// <returns>A task containing an operation result of interaction.</returns>
+        public async Task<OperationResult<Interaction>> UpdateInteraction(Interaction interaction)
+        {
+            try
+            {
+                var entityInteraction = await Context.Interactions!.FirstOrDefaultAsync(x => x.Id == interaction.Id);
+                if (entityInteraction == null) return new(new Exception("Interaction not found"));
+
+                entityInteraction.Date = interaction.Date;
+                entityInteraction.Info1 = interaction.Info1;
+                entityInteraction.Info2 = interaction.Info2;
+                entityInteraction.Feedback = interaction.Feedback;
+                entityInteraction.FeedbackInfo = interaction.FeedbackInfo;
+                entityInteraction.Alert = interaction.Alert;
+
+                var prospect = await Context.Prospects!.FirstOrDefaultAsync(x => x.Id == entityInteraction.ProspectID);
+                if (prospect != null)
+                {
+                    prospect.Modified = DateTime.UtcNow;
+                }
+
+                await Context.SaveChangesAsync();
+
+                if (prospect != null)
+                {
+                    await AuditService.Insert(AuditType.EditInteraction, prospect.Name, entityInteraction.Type.ToString());
+                }
+
+                Context.Entry(entityInteraction).State = EntityState.Detached;
+                if (prospect != null) Context.Entry(prospect).State = EntityState.Detached;
+
+                return new(entityInteraction);
+            }
+            catch (Exception e)
+            {
+                return new(e);
+            }
+        }
+
+        #endregion
+
         #region Public Method UpdateAsync
 
         /// <summary>

FoodsharingSiegen.Server/Dialogs/InteractionDialog.razor

@@ -76,5 +76,5 @@
 
 <div class="d-flex justify-content-end">
     <Button Color="Color.Secondary" Clicked="@ModalService.Hide">Abbrechen</Button>
-    <Button Color="Color.Primary" Clicked="@AddInteractionAsync" Class="ml-2">OK</Button>
+    <Button Color="Color.Primary" Clicked="@SaveAsync" Class="ml-2">@(IsEditMode ? "Speichern" : "OK")</Button>
 </div>

FoodsharingSiegen.Server/Dialogs/InteractionDialog.razor.cs

@@ -1,4 +1,5 @@
 using Blazorise;
+using FoodsharingSiegen.Contracts;
 using FoodsharingSiegen.Contracts.Entity;
 using FoodsharingSiegen.Contracts.Enums;
 using FoodsharingSiegen.Server.BaseClasses;
@@ -7,7 +8,7 @@ using Microsoft.AspNetCore.Components;
 
 namespace FoodsharingSiegen.Server.Dialogs
 {
-    public record InteractionDialogParameter(InteractionType Type, Guid ProspectId, string HeaderText, Func<Task> OnSuccess);
+    public record InteractionDialogParameter(InteractionType Type, Guid ProspectId, string HeaderText, Func<Task> OnSuccess, Interaction? ExistingInteraction = null);
 
     public partial class InteractionDialog : FsBase
     {
@@ -44,6 +45,19 @@ namespace FoodsharingSiegen.Server.Dialogs
         [Parameter]
         public bool ShowNotNeeded { get; set; }
 
+        [Parameter]
+        public bool IsEditMode { get; set; }
+
+        #endregion
+
+        #region Public Method IsEditable
+
+        public static bool IsEditable(InteractionType type) => type switch
+        {
+            InteractionType.EinAb => true,
+            _ => false
+        };
+
         #endregion
 
         #region Public Method ShowAsync
@@ -93,7 +107,24 @@ namespace FoodsharingSiegen.Server.Dialogs
                 _ => false
             };
 
-            var interaction = new Interaction
+            var isEditMode = parameter.ExistingInteraction != null;
+            var interaction = isEditMode
+                ? new Interaction
+                {
+                    Id = parameter.ExistingInteraction!.Id,
+                    Type = parameter.ExistingInteraction.Type,
+                    Date = parameter.ExistingInteraction.Date,
+                    ProspectID = parameter.ExistingInteraction.ProspectID,
+                    UserID = parameter.ExistingInteraction.UserID,
+                    Info1 = parameter.ExistingInteraction.Info1,
+                    Info2 = parameter.ExistingInteraction.Info2,
+                    Feedback = parameter.ExistingInteraction.Feedback,
+                    FeedbackInfo = parameter.ExistingInteraction.FeedbackInfo,
+                    Alert = parameter.ExistingInteraction.Alert,
+                    NotNeeded = parameter.ExistingInteraction.NotNeeded,
+                    Created = parameter.ExistingInteraction.Created
+                }
+                : new Interaction
                 {
                     Type = parameter.Type,
                     Date = DateTime.UtcNow,
@@ -108,29 +139,41 @@ namespace FoodsharingSiegen.Server.Dialogs
                 p.Add(nameof(Info2Name), info2Name);
                 p.Add(nameof(ShowAlert), showAlert);
                 p.Add(nameof(ShowNotNeeded), showNotNeeded);
+                p.Add(nameof(IsEditMode), isEditMode);
                 p.Add(nameof(OnSuccess), parameter.OnSuccess);
             });
         }
 
         #endregion
 
-        #region Private Method AddInteractionAsync
+        #region Private Method SaveAsync
 
         /// <summary>
-        ///     Adds a new interaction for the current user using the ProspectService and hides the modal.
+        ///     Saves the interaction (add or update) and hides the modal on success.
         /// </summary>
-        /// <returns>
+        private async Task SaveAsync()
-        ///     A task representing the asynchronous operation.
+        {
-        /// </returns>
+            OperationResult<Interaction> result;
-        private async Task AddInteractionAsync()
+
+            if (IsEditMode)
+            {
+                result = await ProspectService.UpdateInteraction(Interaction);
+            }
+            else
             {
                 Interaction.UserID = CurrentUser.Id;
+                result = await ProspectService.AddInteraction(Interaction);
+            }
 
-            var addR = await ProspectService.AddInteraction(Interaction);
+            if (result.Success)
-
+            {
                 await ModalService.Hide();
-
+                if (OnSuccess != null) await OnSuccess.Invoke();
-            if (addR.Success && OnSuccess != null) await OnSuccess.Invoke();
+            }
+            else
+            {
+                await Notification.Error(result.Exception?.Message ?? "Unbekannter Fehler beim Speichern.", "Fehler");
+            }
         }
 
         #endregion