From eb34b9bd34aeff39b8c3b6fa0a875fa8c2bf6ca5 Mon Sep 17 00:00:00 2001
From: Thorsten Sommer <mail@tsommer.org>
Date: Sun, 18 Jan 2026 17:12:49 +0100
Subject: [PATCH] Fix model state after switching the host

---
 .../Dialogs/EmbeddingProviderDialog.razor            |  2 +-
 .../Dialogs/EmbeddingProviderDialog.razor.cs         | 12 +++++++++++-
 app/MindWork AI Studio/Dialogs/ProviderDialog.razor  |  2 +-
 .../Dialogs/ProviderDialog.razor.cs                  | 10 ++++++++++
 .../Dialogs/TranscriptionProviderDialog.razor        |  2 +-
 .../Dialogs/TranscriptionProviderDialog.razor.cs     | 12 +++++++++++-
 6 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor
index db396281..85e6e6ef 100644
--- a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor	
+++ b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor	
@@ -44,7 +44,7 @@
 
             @if (this.DataLLMProvider.IsHostNeeded())
             {
-                <MudSelect @bind-Value="@this.DataHost" Label="@T("Host")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.providerValidation.ValidatingHost">
+                <MudSelect T="Host" Value="@this.DataHost" ValueChanged="@this.OnHostChanged" Label="@T("Host")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.providerValidation.ValidatingHost">
                     @foreach (Host host in Enum.GetValues(typeof(Host)))
                     {
                         if (host.IsEmbeddingSupported())
diff --git a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs
index 6ecf9910..6520b7ee 100644
--- a/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs	
+++ b/app/MindWork AI Studio/Dialogs/EmbeddingProviderDialog.razor.cs	
@@ -264,7 +264,17 @@ public partial class EmbeddingProviderDialog : MSGComponentBase, ISecretId
             await this.form.Validate();
         }
     }
-    
+
+    private void OnHostChanged(Host selectedHost)
+    {
+        // When the host changes, reset the model selection state:
+        this.DataHost = selectedHost;
+        this.DataModel = default;
+        this.dataManuallyModel = string.Empty;
+        this.availableModels.Clear();
+        this.dataLoadingModelsIssue = string.Empty;
+    }
+
     private async Task ReloadModels()
     {
         this.dataLoadingModelsIssue = string.Empty;
diff --git a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor
index 3ed23cba..96e94a2f 100644
--- a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor	
+++ b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor	
@@ -41,7 +41,7 @@
 
             @if (this.DataLLMProvider.IsHostNeeded())
             {
-                <MudSelect @bind-Value="@this.DataHost" Label="@T("Host")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.providerValidation.ValidatingHost">
+                <MudSelect T="Host" Value="@this.DataHost" ValueChanged="@this.OnHostChanged" Label="@T("Host")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.providerValidation.ValidatingHost">
                     @foreach (Host host in Enum.GetValues(typeof(Host)))
                     {
                         @if (host.IsChatSupported())
diff --git a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs
index f2d0f309..216f49ee 100644
--- a/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs	
+++ b/app/MindWork AI Studio/Dialogs/ProviderDialog.razor.cs	
@@ -288,6 +288,16 @@ public partial class ProviderDialog : MSGComponentBase, ISecretId
             await this.form.Validate();
         }
     }
+
+    private void OnHostChanged(Host selectedHost)
+    {
+        // When the host changes, reset the model selection state:
+        this.DataHost = selectedHost;
+        this.DataModel = default;
+        this.dataManuallyModel = string.Empty;
+        this.availableModels.Clear();
+        this.dataLoadingModelsIssue = string.Empty;
+    }
     
     private async Task ReloadModels()
     {
diff --git a/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor b/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor
index fc4d62e1..78d2dea2 100644
--- a/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor	
+++ b/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor	
@@ -44,7 +44,7 @@
 
             @if (this.DataLLMProvider.IsHostNeeded())
             {
-                <MudSelect @bind-Value="@this.DataHost" Label="@T("Host")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.providerValidation.ValidatingHost">
+                <MudSelect T="Host" Value="@this.DataHost" ValueChanged="@this.OnHostChanged" Label="@T("Host")" Class="mb-3" OpenIcon="@Icons.Material.Filled.ExpandMore" AdornmentColor="Color.Info" Adornment="Adornment.Start" Validation="@this.providerValidation.ValidatingHost">
                     @foreach (Host host in Enum.GetValues(typeof(Host)))
                     {
                         if (host.IsTranscriptionSupported())
diff --git a/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor.cs b/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor.cs
index 78791b4d..75ad00a7 100644
--- a/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor.cs	
+++ b/app/MindWork AI Studio/Dialogs/TranscriptionProviderDialog.razor.cs	
@@ -279,7 +279,17 @@ public partial class TranscriptionProviderDialog : MSGComponentBase, ISecretId
             await this.form.Validate();
         }
     }
-    
+
+    private void OnHostChanged(Host selectedHost)
+    {
+        // When the host changes, reset the model selection state:
+        this.DataHost = selectedHost;
+        this.DataModel = default;
+        this.dataManuallyModel = string.Empty;
+        this.availableModels.Clear();
+        this.dataLoadingModelsIssue = string.Empty;
+    }
+
     private async Task ReloadModels()
     {
         this.dataLoadingModelsIssue = string.Empty;